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WO2023284500A1 - Procédé et appareil de communication - Google Patents

Procédé et appareil de communication Download PDF

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Publication number
WO2023284500A1
WO2023284500A1 PCT/CN2022/100227 CN2022100227W WO2023284500A1 WO 2023284500 A1 WO2023284500 A1 WO 2023284500A1 CN 2022100227 W CN2022100227 W CN 2022100227W WO 2023284500 A1 WO2023284500 A1 WO 2023284500A1
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WO
WIPO (PCT)
Prior art keywords
bwp
rnti
search space
terminal device
space set
Prior art date
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Ceased
Application number
PCT/CN2022/100227
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English (en)
Chinese (zh)
Inventor
张战战
铁晓磊
花梦
周涵
黄雯雯
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Publication of WO2023284500A1 publication Critical patent/WO2023284500A1/fr
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Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/02—Power saving arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0203—Power saving arrangements in the radio access network or backbone network of wireless communication networks
    • H04W52/0206—Power saving arrangements in the radio access network or backbone network of wireless communication networks in access points, e.g. base stations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0457—Variable allocation of band or rate

Definitions

  • the present application relates to the technical field of communication, and in particular to a communication method and device.
  • a terminal device can be configured with multiple bandwidth parts (bandwidth part, BWP) in a cell.
  • BWP bandwidth part
  • the configuration parameters of different BWPs can be configured to be the same or different.
  • the terminal device can switch from one BWP to another BWP through BWP switch.
  • the switching delay may be referred to as a BWP switching delay (BWP switch delay).
  • a new type of terminal equipment called reduced capability (reduced capability, RedCap) terminal equipment, it can achieve fast switching work through fast BWP switching (fast BWP switch) and/or BWP frequency hopping (BWP hopping) Frequency point, switching delay is shorter than BWP switching delay, to achieve fast BWP switching (fast BWP switch) and/or BWP frequency hopping (BWP hopping) with shorter switching delay, it is necessary to meet the radio frequency (RF)
  • the center frequency point is different before and after the handover, and some or all of the radio resource control (radio resource control, RRC) configuration parameters are the same.
  • the terminal device includes the radio network instructing the terminal device to monitor the same public radio network temporary identity (radio network temporary identity, RNTI) on both BWPs.
  • the public RNTI is jointly monitored by a group of terminal devices.
  • the terminal devices in the same group of terminal devices may be located in the same BWP, or some terminal devices may perform handover and switch to different BWPs.
  • the network device When a group of terminal devices are distributed in different BWPs, in order to send data to each terminal device in this group of terminal devices, the network device must send data in different BWPs. Obviously, this will cause network The device sends multiple copies of data at different frequency domain positions, which will increase the resource overhead of the network device, reduce the utilization efficiency of system resources, and increase the power consumption of the network device.
  • the embodiment of the present application discloses a communication method and device, which can save resource overhead and power consumption of network equipment, and improve resource utilization efficiency.
  • the first aspect of the embodiment of the present application discloses a communication method, the method includes: the terminal device determines that both the first search space set on the first bandwidth part BWP and the second search space set on the second BWP are associated with the first wireless network temporarily identify the RNTI; when the first BWP is an activated BWP, the terminal device monitors the physical downlink control channel PDCCH scrambled by the first RNTI in the first search space set; when the second BWP When the BWP is activated, the terminal device determines not to monitor the PDCCH scrambled by the first RNTI in the second search space set.
  • the terminal device can prevent the terminal device from monitoring the PDCCH scrambled by the first RNTI at both BWPs.
  • it can prevent the network device from sending the PDCCH scrambled by the first RNTI at both BWPs.
  • Multiple terminal devices are configured with the same common search space set in the two BWPs before and after switching, which can prevent network devices from sending multiple copies of data at different frequency domain positions, thereby saving resource overhead and network device power consumption, improving resource utilization efficiency.
  • the index of the first BWP is less than or greater than the index of the second BWP specified in the protocol; or the first BWP and the second BWP belong to multiple configured BWPs, Each of the multiple BWPs has at least one search space set associated with the first RNTI, and the first BWP is a BWP with the smallest or largest index among the multiple BWPs.
  • the protocol pre-specifies that the index of the first BWP is the BWP with the smallest index among the multiple BWPs, so that when releasing the BWP, it can be released according to the BWP index, which is easier and more flexible. In this way, it can The BWP monitoring the first RNTI is finally released.
  • the terminal device receives first information from a network device, where the first information is used to indicate that the first BWP listens to the first RNTI among multiple configured BWPs.
  • the BWP of the scrambled PDCCH, the first BWP and the second BWP belong to the configured multiple BWPs, and there is at least one search space set associated with the first BWP on each of the multiple BWPs RNTI.
  • the network device indicates that the first BWP is the BWP that monitors the PDCCH scrambled by the first RNTI among the configured multiple BWPs, so that flexibility can be ensured, and the terminal device can reach an agreement with the network device.
  • At least one of the following parameters configured for the first search space set and the second search space set is the same: a listening cycle and a cycle offset, and The number of consecutive time slots, the monitoring symbols in the monitoring time slots, the candidate PDCCH aggregation level, the number of PDCCH candidates corresponding to the candidate PDCCH aggregation level, the search space set type (common or dedicated), and the associated DCI format.
  • the method further includes: the terminal device receiving second information from a network device, where the second information is used to indicate whether the terminal device switches the first BWP to active and monitor the PDCCH scrambled by the first RNTI in the first set of search spaces.
  • the method further includes: the terminal device determines, according to the second information, that the first BWP is switched to an active BWP; The listening opportunity of at least one listening period of the space set starts or a first time interval before the beginning of the listening opportunity starts, switching the first BWP to an active BWP, and listening to the first BWP at the listening opportunity of the at least one listening period.
  • the terminal device switches from the first BWP to the first BWP after the end of the listening opportunity of the at least one listening cycle, or after the end of the listening opportunity of the at least one listening cycle for a second period of time Three BWPs; the third BWP is the previous activated BWP before switching the first BWP to the activated BWP; or, the terminal device continues to stay in the The first BWP.
  • the method further includes: when the second BWP is an activated BWP, switching the terminal device from the second BWP to The first BWP monitors the PDCCH scrambled by the first RNTI at the listening occasions of the first search space set in the first BWP, and each time window in the periodic time windows includes the At least one listening time slot of the listening opportunity of the first search space set, the period of the periodic time window is equal to N times the listening period of the first search space set, and N is a positive integer greater than or equal to 1 , the length of each time window of the periodic time window is less than the period of the periodic time window; the terminal device finishes switching from the first BWP back to the first BWP before the end of the at least one time window the second BWP; or, the terminal device continues to stay in the first BWP after the at least one time window ends or ends.
  • the terminal device determines not to monitor the PDCCH scrambled by the first RNTI in the second search space set, including: The terminal device determines not to monitor the PDCCH scrambled by the first RNTI associated with the second search space set in the second search space set; but the terminal device determines to monitor the PDCCH scrambled by the second search space set in the second search space set PDCCHs scrambled by all other RNTIs associated with the second search space set.
  • the terminal device determines not to monitor the PDCCH scrambled by the first RNTI in the second search space set, including: The terminal device determines not to monitor the PDCCH scrambled by the first RNTI associated with the second search space set and all other RNTIs associated with the second search space set in the second search space set.
  • the priority of at least one RNTI among all the other RNTIs is higher than the priority of the first RNTI.
  • the terminal device switches from the second BWP to the first BWP, and The listening occasions of the first search space set listen to the PDCCH scrambled by the first RNTI.
  • the method further includes: when the second BWP is an activated BWP and at least one of the following conditions exists, switching the terminal device from the second BWP to the second BWP A BWP, and the first search space set in the first BWP monitors the PDCCH scrambled by the first RNTI: within a time window including the listening occasion of the first search space set, the terminal The device has no uplink and/or downlink data transmission in the second BWP; within a time window including the listening opportunity of the first search space set, the terminal device is in the discontinuous reception DRX inactivation time of the second BWP ; within a time window of the listening occasions including the first search space set, the terminal device determines not to monitor the PDCCH at the second BWP; within a time window of the listening occasions including the first search space set, the The terminal device determines that there is no transmission opportunity of any reference signal in the second BWP.
  • the terminal device determines not to monitor the PDCCH scrambled by the first RNTI in the second search space set, including : When the second BWP is an activated BWP, and the terminal device does not receive the third information from the network device, the third information is used to instruct the terminal device to listen in the second BWP The PDCCH scrambled by the first RNTI, the terminal device determines not to monitor the PDCCH scrambled by the first RNTI in the second search space set; or; when the second BWP is an activated BWP, and The terminal device receives fourth information from the network device, where the fourth information is used to instruct the terminal device not to monitor the PDCCH scrambled by the first RNTI in the second BWP, the terminal The device determines not to monitor the PDCCH scrambled by the first RNTI in the second set of search spaces.
  • the first RNTI is a power saving radio network temporary identifier PS-RNTI
  • the second BWP is an activated BWP
  • the method further includes: if at least one of the following conditions is met
  • the terminal device determines not to monitor the PDCCH scrambled by the PS-RNTI in the second search space set of the second BWP, and starts the DRX duration timing of the next long discontinuous reception DRX cycle device, the following conditions include: all valid listening opportunities of the PS-RNTI before the DRX duration of the next long DRX cycle are within the DRX activation time, and the duration of the DRX duration is equal to the DRX
  • the timing duration of the duration timer, the start of the DRX duration of the next long DRX cycle is the same as the start of the next long DRX cycle
  • the effective monitoring timing of the PS-RNTI is that the terminal device monitors The monitoring timing of the PDCCH scrambled by the PS-RNTI, the effective monitoring timing
  • the first RNTI is a PS-RNTI
  • the second BWP is an activated BWP
  • the method further includes: the DRX activation time of the terminal device in the second BWP At the end, switching from the second BWP to the first BWP starts.
  • the first RNTI is a PS-RNTI
  • the terminal device monitors the PDCCH scrambled by the PS-RNTI at the first BWP
  • the DCI carried by the PDCCH indicates The terminal device does not start the DRX duration timer of the next long DRX cycle, the terminal device does not start the DRX duration timer of the next long DRX cycle, and the terminal device continues to stay in the first BWP .
  • the first RNTI is a PS-RNTI
  • the terminal device switches from the fourth BWP to the first BWP and listens to the scrambled PDCCH, and the DCI carried by the PDCCH instructs the terminal equipment to start the DRX duration timer of the next long DRX cycle
  • the fourth BWP is the previous one before switching the first BWP to the active BWP
  • An activated BWP the terminal device switches back from the first BWP to the fourth BWP, and the terminal device starts a DRX duration timer for the next long DRX cycle.
  • the second aspect of the embodiment of the present application discloses a communication method, including: the network device determines that both the first search space set on the first bandwidth part BWP and the second search space set on the second BWP are associated with the first wireless network temporary identifier RNTI; when the first BWP is an activated BWP, the network device sends the physical downlink control channel PDCCH scrambled by the first RNTI to the terminal device in the first search space set; when the second When the BWP is an activated BWP, the network device determines not to send the PDCCH scrambled by the first RNTI in the second search space set.
  • the network The device sends the physical downlink control channel PDCCH scrambled by the first RNTI to the terminal device in the first search space set; when the second BWP is the activated BWP, the network device determines not to send the PDCCH scrambled by the first RNTI in the second search space set
  • the PDCCH mode can avoid the situation that the network device transmits the PDCCH in the first search space set and the second search space set respectively, thereby saving resource overhead and power consumption of the network device, and improving resource utilization efficiency.
  • the index of the first BWP is less than or greater than the index of the second BWP specified in the protocol; or the first BWP and the second BWP belong to multiple configured BWPs, Each of the multiple BWPs has at least one search space set associated with the first RNTI, and the first BWP is a BWP with the smallest or largest index among the multiple BWPs.
  • the protocol pre-specifies that the index of the first BWP is the BWP with the smallest index among the multiple BWPs, so that when releasing the BWP, it can be released according to the BWP index, which is easier and more flexible. In this way, it can The BWP monitoring the first RNTI is finally released.
  • the network device sends first information to the terminal device, where the first information is used to indicate that the first BWP monitors the The BWP of the PDCCH scrambled by the RNTI, the first BWP and the second BWP belong to the configured multiple BWPs, and there is at least one search space set associated with the first BWP on each of the multiple BWPs RNTI.
  • the network device indicates that the first BWP is the BWP that monitors the PDCCH scrambled by the first RNTI among the configured multiple BWPs, so that flexibility can be ensured, and the terminal device can reach an agreement with the network device.
  • At least one of the following parameters configured for the first search space set and the second search space set is the same: a listening cycle and a cycle offset, and The number of consecutive time slots, the monitoring symbols in the monitoring time slots, the candidate PDCCH aggregation level, the number of PDCCH candidates corresponding to the candidate PDCCH aggregation level, the search space set type (common or dedicated), and the associated DCI format.
  • the network device sends second information to the terminal device, where the second information is used to indicate whether the terminal device switches the first BWP to an active BWP and A set of search spaces monitors the PDCCH scrambled by the first RNTI.
  • the network device determines not to send the PDCCH scrambled by the first RNTI in the second search space set, including: The network device determines not to transmit the PDCCH scrambled by the first RNTI associated with the second search space set in the second search space set; but the network device determines to transmit the PDCCH scrambled by the second search space set in the second search space set PDCCHs scrambled by all other RNTIs associated with the second search space set.
  • the network device determines not to send the PDCCH scrambled by the first RNTI in the second search space set, including: The network device determines not to send the PDCCH scrambled by the first RNTI associated with the second search space set and all other RNTIs associated with the second search space set in the second search space set.
  • the priority of at least one RNTI among all other RNTIs is higher than the priority of the first RNTI.
  • the network device determines not to send the PDCCH scrambled by the first RNTI in the second search space set, including : when the second BWP is an activated BWP, and the network device does not send third information to the terminal device, the third information is used to instruct the terminal device to monitor the The PDCCH scrambled by the first RNTI, the network device determines not to send the PDCCH scrambled by the first RNTI in the second search space set; or; when the second BWP is an activated BWP, And the network device sends fourth information to the terminal device, the fourth information is used to instruct the terminal device not to monitor the PDCCH scrambled by the first RNTI in the second BWP, the terminal The device determines not to send the PDCCH scrambled by the first RNTI in the second set of search spaces.
  • the third aspect of the embodiment of the present application discloses a communication device, which may be a terminal device or a chip in a terminal device.
  • the communication device includes a communication unit and a processing unit, and the communication unit is used to implement the aforementioned first aspect and possible implementations
  • the processing unit is configured to perform the determining action, the monitoring action, and the like in the aforementioned first aspect and possible implementation manners.
  • the fourth aspect of the embodiment of the present application discloses a communication device.
  • the device may be a network device or a chip in the network device.
  • the communication device includes a communication unit and a processing unit.
  • the communication unit is used to implement the aforementioned second aspect and possible implementations
  • the sending and receiving actions in the above-mentioned second aspect and the determining actions in the possible implementation manners are performed by the processing unit.
  • the fifth aspect of the embodiment of the present application discloses a communication device, the device includes at least one processor, the at least one processor is used to execute at least one computer program or instruction stored in a memory, and the at least one processor is used to implement The function of the processing unit in the above third aspect or a possible implementation manner of the third aspect, so that the device implements the method described in the above first aspect or a possible implementation manner of the first aspect.
  • the sixth aspect of the embodiment of the present application discloses a communication device, the device includes at least one processor, the at least one processor is used to execute at least one computer program or instruction stored in a memory, and the at least one processor is used to implement The function of the processing unit in the above fourth aspect or a possible implementation manner of the fourth aspect, so that the apparatus implements the method described in the above second aspect or a possible implementation manner of the second aspect.
  • the seventh aspect of the embodiment of the present application discloses a chip system, the chip system includes at least one processor and a communication interface, and the at least one processor is used to execute computer programs or instructions to implement the method described in any of the above aspects .
  • the eighth aspect of the embodiment of the present application discloses a computer-readable storage medium, where computer instructions are stored in the computer-readable storage medium, and when the computer instructions are run on a processor, to implement the above-mentioned any one of the above aspects. Methods.
  • the ninth aspect of the embodiments of the present application discloses a computer program product, the computer program product includes computer program code, and when the computer program code is run on a computer, the method described in any one of the above aspects is implemented.
  • FIG. 1 is a schematic structural diagram of a communication system provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a terminal device 1 switching from BWP-b to BWP-a according to an embodiment of the present application;
  • FIG. 3 is a schematic flowchart of a communication method provided in an embodiment of the present application.
  • Fig. 4 is a schematic diagram of a period of monitoring timing of a first search space set provided by an embodiment of the present application
  • Fig. 5 is a schematic diagram of a periodic time window provided by an embodiment of the present application.
  • FIG. 6 is a schematic diagram of a time window and a period of monitoring timing provided by an embodiment of the present application.
  • FIG. 7 is a schematic diagram of a time window provided by an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of another communication device provided by an embodiment of the present application.
  • FIG. 1 is a schematic structural diagram of a communication system 100 provided by an embodiment of the present application.
  • the communication system 100 includes a network device 101 and a terminal device 102.
  • the network device 101 can send information to the terminal device 102 through a downlink channel.
  • the terminal device 102 may send information to the network device 101 through an uplink channel.
  • FIG. 1 is only for illustration, and the communication system may also have more network devices and more terminal devices, which are not limited in this embodiment of the present application.
  • the common search space sets configured in at least two working bandwidths included in the terminal device 102 for data transmission are the same or the radio resource control (radio resource control, RRC) configuration information is the same (partially or completely).
  • RRC radio resource control
  • Terminal equipment including equipment that provides voice and/or data connectivity to users, specifically, equipment that provides voice to users, or equipment that provides data connectivity to users, or equipment that provides voice and data connectivity to users sexual equipment. Examples may include a handheld device with wireless connectivity, or a processing device connected to a wireless modem.
  • the terminal device can communicate with the core network via a radio access network (radio access network, RAN), exchange voice or data with the RAN, or exchange voice and data with the RAN.
  • radio access network radio access network
  • the terminal equipment may include user equipment (user equipment, UE), wireless terminal equipment, mobile terminal equipment, D2D terminal equipment, vehicle to everything (vehicle to everything, V2X) terminal equipment, machine-to-machine/machine-type communication (machine-to-machine) -machine/machine-type communications, M2M/MTC) terminal equipment, Internet of things (internet of things, IoT) terminal equipment, light terminal equipment (light UE), reduced capability user equipment (reduced capability UE, REDCAP UE), subscribers Unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile station), remote station (remote station), access point (access point, AP), remote terminal (remote terminal), access terminal (access terminal) ), user terminal (user terminal), user agent (user agent), or user equipment (user device), etc.
  • IoT Internet of things
  • IoT Internet of things
  • IoT Internet of things
  • light terminal equipment light UE
  • reduced capability user equipment reduced capability UE
  • it may include mobile phones (or “cellular” phones), computers with mobile terminal equipment, portable, pocket, hand-held, computer built-in mobile devices, etc.
  • PCS personal communication service
  • cordless telephone cordless telephone
  • session initiation protocol session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistant
  • constrained devices such as devices with low power consumption, or devices with limited storage capabilities, or devices with limited computing capabilities, etc.
  • it includes barcodes, radio frequency identification (radio frequency identification, RFID), sensors, global positioning system (global positioning system, GPS), laser scanners and other information sensing devices.
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices or smart wearable devices, etc., which is a general term for the application of wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes Wait.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not only a hardware device, but also achieve powerful functions through software support, data interaction, and cloud interaction.
  • Generalized wearable smart devices include full-featured, large-sized, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, etc., and only focus on a certain type of application functions, and need to cooperate with other devices such as smart phones Use, such as various smart bracelets, smart helmets, smart jewelry, etc. for physical sign monitoring.
  • the various terminal devices described above if they are located on the vehicle (for example, placed in the vehicle or installed in the vehicle), can be considered as vehicle-mounted terminal devices. ).
  • Network equipment for example including access network (access network, AN) equipment, such as base stations (for example, access points), can refer to equipment in the access network that communicates with wireless terminal equipment through one or more cells through the air interface , or for example, a network device in a vehicle-to-everything (V2X) technology is a road side unit (RSU).
  • the base station can be used to convert received over-the-air frames to and from IP packets, acting as a router between the terminal device and the rest of the access network, which can include an IP network.
  • the RSU can be a fixed infrastructure entity supporting V2X applications, and can exchange messages with other entities supporting V2X applications.
  • the network device can also coordinate the attribute management of the air interface.
  • the network equipment may include an evolved base station (NodeB or eNB or e-NodeB, evolutional Node B) in a long term evolution (long term evolution, LTE) system or an advanced long term evolution (long term evolution-advanced, LTE-A), Or it may also include the next generation node B (next generation node B, gNB) in the fifth generation mobile communication technology (the 5th generation, 5G) NR system (also referred to as NR system) or it may also include the cloud access network (cloud).
  • NodeB or eNB or e-NodeB, evolutional Node B in a long term evolution (long term evolution, LTE) system or an advanced long term evolution (long term evolution-advanced, LTE-A)
  • LTE long term evolution
  • LTE-advanced long term evolution-advanced
  • LTE-A long term evolution-advanced
  • the next generation node B next generation node B
  • 5G fifth generation mobile communication technology
  • the network device may also include a core network device, and the core network device includes, for example, an access and mobility management function (access and mobility management function, AMF), a user plane function (user plane function, UPF) or a session management function (session management function, SMF) Wait.
  • AMF access and mobility management function
  • UPF user plane function
  • SMF session management function
  • BWP switch (BWP switch):
  • BWP is a subset bandwidth of the total bandwidth of the cell.
  • Terminal equipment can be configured with multiple BWPs in a cell, for example, 4 or 5 BWPs, but only one of the BWPs is active, which is called active BWP.
  • active BWP the BWPs
  • terminal devices can only send and receive data on the active BWP.
  • the parameters of different BWPs are independent of each other and can be configured to be the same or different. For example, center frequency point, bandwidth size, and subcarrier spacing (subcarrier spacing, SCS).
  • the RRC parameters between different BWPs are also configured independently of each other, including: control resource set (control resource set, CORESET), search space set (search space set, SS set), quasi co location (quasi co location, QCL) Parameters, reference signal resources, physical uplink control channel (physical uplink control channel, PUCCH), rate matching (rate matching), multiple-in multiple out (multiple-in multiple out, MIMO) layer number, physical downlink shared channel (physical downlink shared channel, PDSCH), physical uplink shared channel (physical uplink shared channel, PUSCH) configuration parameters, etc.
  • Terminal equipment can switch from one BWP to another BWP through BWP switch (BWP switch). For example, switching from a BWP with a smaller bandwidth to a BWP with a larger bandwidth.
  • the NR system supports two types of BWP switch delay (BWP switch delay). Which type the terminal device uses depends on the capability reported by the terminal device. For example, if the terminal device reports the capability to support Type 1 (Type 1), then The terminal device supports Type 1 BWP switching delay. If the terminal device reports the capability to support Type 2 (Type 2), the terminal device supports Type 2 BWP switching delay.
  • BWP switch delay is related to the subcarrier spacing, as shown in Table 1:
  • the BWP handover delay can consist of multiple parts.
  • the BWP switching delay mainly includes three parts: 1) DCI resolution time; 2) radio frequency (radio frequency, RF) and baseband (baseband) parameters Calculation and loading time; 3) RF switching/tuning (RF retuning) time.
  • the BWP handover delay also includes certain redundancy, which is used to ensure that the end time of the BWP handover delay is aligned with the time slot boundary.
  • the DCI includes a BWP indicator (indicator) information field, which is used to indicate the BWP identity (identity document, ID), if the indicated BWP ID and the current (or currently activated) BWP ID of the terminal device If they are different, it means that the DCI triggers the terminal device to switch the BWP to the BWP corresponding to the BWP ID indicated by the BWP indicator.
  • BWP-inactivity timer BWP-inactivity timer
  • RRC signaling triggering if the terminal device receives RRC reconfiguration (RRC reconfiguration) signaling, including signaling instructing the terminal device to perform BWP switching, or its current active BWP parameters have changed, it means that the RRC reconfiguration
  • RRC reconfiguration RRC reconfiguration
  • the signaling triggers the terminal device to perform BWP handover.
  • RedCap reduced capability terminal equipment
  • RedCap's terminal devices currently considered include three major application scenarios: wearable devices, industrial wireless sensors, and video surveillance equipment. It is currently being studied whether RedCap's terminal equipment can quickly switch operating frequency points through fast BWP switching (fast BWP switch) and/or BWP frequency hopping (BWP hopping), and the switching delay is shorter than the BWP switching delay shown in Table 1. .
  • Fast BWP switch Still through the framework of BWP switch (BWP switch), switch from one BWP to another BWP.
  • the BWP switch (BWP switch) delay is relatively shorter, for example, 140 microseconds (us).
  • BWP hopping (BWP hopping): It can also be called BWP retuning.
  • BWP frequency hopping mainly changes the center frequency point of BWP, and it is stipulated that the BWP ID before and after frequency hopping remains unchanged, that is, the same BWP is still the same before and after frequency hopping.
  • a special BWP frequency hopping that is, only the center frequency point changes before and after the frequency hopping, while the BWP bandwidth, SCS, QCL parameters, RRC configuration and other parameters remain unchanged.
  • BWP frequency hopping is to keep the BWP ID unchanged, but change the frequency domain of the BWP Position or frequency domain start position, e.g. from BWP starting location 1 to BWP starting location 2.
  • the RedCap terminal equipment Since the RedCap terminal equipment supports a relatively small bandwidth, the frequency diversity gain obtained within the relatively small bandwidth is relatively small. In addition, working in a small bandwidth for a long time may cause the terminal equipment to be affected by large interference for a long time. Therefore, in order to improve the frequency hopping gain of the RedCap terminal equipment and improve the resource utilization efficiency of the network equipment, the RedCap terminal equipment may frequently switch the center frequency point.
  • the BWP switch BWP switch
  • the BWP switch will cause the terminal device to be interrupted. During the interruption time, the terminal device cannot send and receive data, so the UE data rate will be reduced. , increase the data delay, and reduce the utilization efficiency of system resources.
  • RF bandwidth, SCS, QCL, radio resource control (radio resource control, RRC) configuration parameters and other parameters are all the same or partially the same, for example, when the two BWPs before and after the BWP handover are only different in the center frequency point.
  • the time for the terminal device to analyze, calculate and reapply the RRC parameters can be saved, and the terminal device can be prevented from re-executing automatic gain control (automatic gain control, AGC)/automatic frequency control (automatic frequency control, AFC) adjustment, etc., so
  • AGC automatic gain control
  • AFC automatic frequency control
  • the switching time may only include the RF switching time.
  • a common physical downlink control channel is a PDCCH sent by a network device to a group of terminal devices instead of a single terminal device.
  • the DCI carried by it can be called common DCI (common DCI).
  • the DCI cyclic redundancy check (cyclic redundancy check, CRC) is scrambled by the group UE RNTI (UE-group RNTI), and the UE-group RNTI may also be called a common RNTI.
  • both BWPs before and after the RF handover contain the same common search space set configuration, that is, both BWPs include the RRC configuration information that instructs the UE to monitor the same common RNTI .
  • both BWPs before and after the RF handover include a common search space set (common search space), and both include PDCCH candidate resources (PDCCH candidate) in the same common DCI format.
  • the network device configures a search space set containing a PDCCH candidate of a certain DCI format in a BWP, then the terminal device must monitor the DCI format when working in the BWP.
  • a BWP is configured with a paging search space set (paging search space)
  • the terminal device will monitor the paging PDCCH at the paging occasion (PO). If the terminal device is in the RRC connected state (connected), the terminal device is paging The paging occasion (PO) may monitor the paging PDCCH.
  • P-RNTI paging-radio network temporary identity
  • SI-RNTI system information-network temporary identity
  • a BWP is configured with system information block 1 (system information block 1, SIB1) search space set (searchSpaceSIB1 or searchSpaceZero) or other system information search space set (searchSpaceOtherSystemInformation)
  • SIB1 system information block 1, SIB1
  • searchSpaceOtherSystemInformation searchSpaceOtherSystemInformation
  • RA-RNTI random access-radio network temporary identity
  • MsgB-RNTI messages B-radio network temporary identity
  • a BWP is configured with random access Search space set (ra-SearchSapce)
  • ra-ResponseWindow random access response window
  • msgB-ResponseWindow messages B response window
  • the terminal equipment must monitor the same common RNTI in the two BWPs before and after the RF handover.
  • the public RNTI is monitored by a group of terminal devices. At a certain moment, the terminal devices in the same group of terminal devices may be located in the same BWP, or some terminal devices may perform RF switching and switch to different BWPs. .
  • the network device When a group of terminal devices are distributed in different BWPs, in order to send data to each terminal device in the group of terminal devices, the network device must send the common PDCCH and PDSCH in different BWPs (if the public The PDCCH schedules the PDSCH), obviously, this will cause the network device to send multiple pieces of data at different frequency domain positions, for example, multiple pieces of PDCCH, and/or multiple pieces of PDSCH. This will increase the resource overhead of the network device, reduce the utilization efficiency of system resources, and increase the power consumption of the network device.
  • terminal device 1 switches from BWP-b to BWP-a, and the network device needs to send two public PDCCHs for terminal device 1 and terminal device 2, and the two public PDCCHs are used to carry the same DCI format (format ), such as DCI format 2_6. Therefore, in order to solve the above problems, the embodiments of the present application propose the following solutions.
  • Figure 3 is a communication method provided by the embodiment of this application, the method includes but is not limited to the following steps:
  • Step S301 the terminal device determines that both the first search space set on the first BWP and the second search space set on the second BWP are associated with the first RNTI.
  • the first BWP and the second BWP are certain two BWPs among the configured multiple BWPs, and here, the first BWP and the second BWP are examples.
  • the first BWP can have (or be called: can be configured) one or more search space sets, and at least one search space set on the first BWP is associated with the first RNTI; the second BWP can have one or more search space sets, and the second BWP can have one or more search space sets.
  • At least one search space set on the two BWPs is associated with the first RNTI.
  • at least one search space set is associated with the first RNTI on each of the multiple BWPs in the configuration.
  • the terminal device determines that both the first search space set on the first BWP and the second search space set on the second BWP are associated with the first RNTI, specifically as follows: the terminal device may receive configuration information about multiple BWPs from the network device, for example Configuration information of the first BWP and configuration information of the second BWP.
  • the configuration information of the first BWP includes the information of configuring the control resource set CORESET and the information of configuring the first search space set
  • the configuration of the first search space set includes the identifier of the control resource set and a CORESET identifier, indicating that the first
  • the search space set is associated with the CORESET corresponding to the CORESET identifier, that is, the terminal device monitors the PDCCH at the listening opportunity of the search space set in the time domain, and in the frequency domain, it is the CORESET associated with the search space set monitor the PDCCH.
  • the first search space set on which the first BWP is configured may be referred to as the first search space set on the first BWP, and may also be understood as the first search space set associated with the first BWP.
  • the second BWP is also similar, and will not be repeated here.
  • the configured multiple BWPs all mean that the search space sets on the configured multiple BWPs are all associated with the first RNTI.
  • the terminal device may also be configured to search for a BWP whose space set is not associated with the first RNTI.
  • first BWP, the second BWP, multiple BWPs, etc. in this embodiment all represent BWPs in the same cell.
  • the terminal device monitors the PDCCH scrambled by an RNTI, which may also be described as the terminal device monitors the RNTI. It should be understood that one PDCCH is scrambled by one RNTI, in fact, the CRC of the DCI carried by the PDCCH is scrambled by this RNTI. Therefore, in this embodiment, monitoring an RNTI is equivalent to monitoring the PDCCH scrambled by the RNTI, and is equivalent to monitoring the DCI scrambled by the RNTI.
  • the terminal device receives the configuration about the first search space set and the configuration about the second search space set from the network device, the first search space set is configured and the second search space set is configured in the following parameters At least one of them is the same, and the following parameters are: monitoring cycle, cycle offset, number of consecutive time slots for each monitoring opportunity, monitoring symbols in the monitoring time slot, candidate PDCCH aggregation level, and PDCCH candidates corresponding to the candidate PDCCH aggregation level Number, search space set type (public or private), associated DCI format, etc., wherein the associated DCI format is the DCI format to be monitored in the first search space set or the second search space set.
  • the following parameters included in the first search space set and the second search space set are all configured to be the same.
  • the configuration about the first search space set and the configuration about the second search space set may be carried in the same message or different messages, the same message may refer to the same message, and different messages may refer to the same type of Messages, but not at the same time, or different types of messages.
  • the first RNTI may be a public RNTI
  • the public RNTI includes at least one of the following: power saving-radio network temporary identity (power saving-radio network temporary identity, PS-RNTI), time slot format indicating wireless network temporary identity ( slot format indication-radio network temporary identity (SFI-RNTI), Interruption-radio network temporary identity (INT-RNTI), cancellation indication-radio network temporary identity (CI-RNTI) ), transmit power control physical uplink control channel wireless network temporary identifier (transmit power control-PUCCH-RNTI, TPC-PUCCH-RNTI), transmit power control physical uplink shared channel wireless network temporary identifier (transmit power control-PUSCH-RNTI, TPC -PUSCH-RNTI), transmit power control sounding reference signal wireless network temporary identifier (transmit power control-sounding reference signal-RNTI, TPC-SRS-RNTI), P-RNTI, SI-RNTI, RA-RNTI, MsgB-RNTI.
  • power saving-radio network temporary identity power saving
  • the first RNTI may include one or more of the above public RNTIs. That is, the first RNTI may represent one RNTI, or may represent multiple RNTIs. Among them, the types and functions of the public RNTI are shown in Table 2.
  • one search space set is associated with one RNTI, which means that the terminal device will monitor the PDCCH scrambled by this RNTI in this search space set.
  • a search space set is set as a paging search space set, and the terminal device monitors the PDCCH scrambled by the P-RNTI in this search space set, it means that the search space set and the P-RNTI Association; if a search space set is set as a random access search space set, the terminal device will monitor the PDCCH scrambled by RA-RNTI or MsgB-RNTI in this search space set, which means that the search space set is related to RA-RNTI or MsgB-RNTI association; if a search space set is set to SIB1 search space set (for example, searchSpaceSIB1) or other system message search space set (for example, searchSpaceOtherSystemInformation), the terminal device in this search space set should listen to the SI-RNTI The scrambled PDCCH indicates that the search space set is associated with the SI-RNTI.
  • SIB1 search space set for example, searchSpaceSIB1
  • other system message search space set for example, searchSpaceOtherSystemIn
  • the terminal device monitors the PDCCH in one search space set, and the terminal device may monitor the PDCCH at some monitoring opportunities of the search space set, or may monitor the PDCCH at all monitoring opportunities of the search space set.
  • a search space set is associated with INT-RNTI, SFI-RNTI, TPC-PUSCH-RNTI, TPC-PUCCH-RNTI, TPC-SRS-RNTI, or CI-RNTI
  • the UE is configured with discontinuous reception DRX ( Discontinuous Reception, DRX)
  • the terminal device listens to the INT-RNTI, SFI-RNTI, TPC-PUSCH-RNTI, TPC-PUCCH-RNTI in the search space set only when the DRX activation time (within DRX Active Time) , TPC-SRS-RNTI, or CI-RNTI scrambled PDCCH, and outside the DRX activation time (outside DRX Active Time) (or called DRX inactive time)
  • a search space set is associated with a P-RNTI
  • the terminal device will only monitor the P-RNTI at the monitoring occasions of the search space set within the configured paging occasion (paging occasion, PO).
  • a search space set is associated with RA-RNTI/MsgB-RNTI, only when the random access response window (ra-ResponseWindow)/message B response window (msgB-ResponseWindow) is running, the terminal device will listen to the search space set DCI scrambled by RA-RNTI/MsgB-RNTI.
  • a search space set is associated with the PS-RNTI, the terminal device will monitor the PDCCH scrambled by the PS-RNTI in the search space set only in a time window before the DRX duration of each DRX cycle. Therefore, a search space set is associated with an RNTI, and the effective listening timing of this RNTI is defined as the listening timing that the terminal device determines to monitor the RNTI in this search space set as described in the above paragraph. In addition, the effective listening timing of this RNTI is The listening period of is the effective listening period of the search space set with respect to this RNTI.
  • the first BWP and the second BWP may have the same BWP identification (Identification, ID), that is to say, the first BWP and the second BWP are the same BWP, the difference lies in the frequency domain positions of the first BWP and the second BWP different.
  • the first BWP and the second BWP share a set of BWP parameters, and the set of BWP parameters has two frequency domain positions, for example, two frequency domain start positions.
  • the first search space set and the second search space set are the same search space set, that is, they share a set of configuration information of the search space set, but there are two names.
  • first search space set and the second search space set The identifiers of the second search space set may be the same, or may be configured to have different identifiers. It should be understood that when the first BWP and the second BWP share a set of BWP parameters, one of the BWPs is equivalent to a copy of the other BWP, not only the bandwidth and SCS of the BWP are copied, but the following parameters are also copied: CORESET, search space set , and other RRC parameters, etc. For example, the number of CORESETs included in the first BWP is the same as the number of CORESETs included in the second BWP; The domain location is the same.
  • the first BWP includes a CORESET with an ID of ID1
  • the second BWP also includes a CORESET with an ID of ID1.
  • These two CORESETs with the same number have the same configuration, but their positions in the frequency domain are different.
  • the first BWP and the second BWP may have different BWP identifiers, and it may be considered that the first BWP and the second BWP are two BWPs.
  • the two BWPs are configured independently of each other, but the two BWPs include the same RRC configuration, except that the center frequencies of the two BWPs are different.
  • the two BWPs have the same configured bandwidth, the same number of CORESETs and the same time/frequency width, the same SCS, the same relative frequency domain positions of the CORESETs in the respective BWPs, and the same search space set (for example, the listening period and other parameters), and so on.
  • the first BWP and the second BWP share a set of BWP configuration parameters, but have two different BWP IDs and BWP frequency domain starting positions.
  • the configured parameters of the first search space set of the first BWP are the same as the configured parameters of the second search space set of the second BWP, or share a set of configuration information of the search space set.
  • RRC configuration information elements information elements, IEs
  • the identifiers of the first search space set and the second search space set are different from the identifiers of the associated CORESETs.
  • all other RRC parameters included in the first search space set and the second search space set are the same. That is to say, among the RRC parameters of the two BWPs, except the identification-related parameters may be different, other RRC parameters are the same.
  • the embodiment of the present application is also applicable to some RRC parameters of the two BWPs being configured to be the same.
  • the listening periods of the first search space set and the second search space set may be different.
  • the index of the first BWP is less than or greater than the index of the second BWP specified in the protocol; or, the first BWP and the second BWP belong to multiple BWPs configured, and among the multiple BWPs There is at least one search space set associated with the first RNTI on each BWP of , and the first BWP is the BWP with the smallest or largest index among the multiple BWPs. That is to say, among multiple configured BWPs, the BWP with the smallest or largest index is the first BWP.
  • first RNTI associated with the search space set on each of the multiple BWPs may refer to at least one first RNTI associated with each BWP on the multiple BWPs.
  • the first BWP may have 1 or more indexes
  • the second BWP may have 1 or more indexes.
  • the first BWP and the second BWP may have the same first index but different second indexes, for example, the first index is the identifier of the BWP, and the second index is the serial number of the frequency domain position of the BWP.
  • the index of the first BWP may be the identifier of the first BWP or the serial number of the frequency domain position of the first BWP.
  • the index of the second BWP may be an identifier of the second BWP or a number of a frequency domain position of the second BWP.
  • the index of the first BWP is the number of the frequency domain position of the first BWP
  • the index of the second BWP is the number of the frequency domain position of the second BWP.
  • the index of the first BWP and the second BWP are different, the index of the first BWP is the identifier of the first BWP, and the index of the second BWP is the identifier of the second BWP.
  • the terminal device is configured with two BWPs, namely BWP0 and BWP1, where the identifier of BWP0 is 0, and the identifier of BWP1 is 1 , wherein, if the identifier 0 of BWP0 is smaller than the identifier 1 of BWP1, then BWP0 is the first BWP.
  • the terminal device is configured with two BWPs, namely BWP1 and BWP2, where the identifiers of BWP1 and BWP2 are both 1,
  • the frequency domain position of BWP1 is H1
  • the frequency domain position of BWP2 is H2, where H1 ⁇ H2, then BWP1 is the first BWP.
  • the index of the first BWP is smaller than the index of the second BWP stipulated in the protocol.
  • it can be released according to the BWP index, which is easier and more flexible. In this way, the BWP monitoring the first RNTI can was finally released.
  • it is also beneficial for the network device to flexibly configure multiple BWPs for multiple terminal devices.
  • the terminal device receives first information from the network device, and the first information is used to indicate that the first BWP is a BWP that monitors the PDCCH scrambled by the first RNTI among the configured multiple BWPs.
  • a BWP and the second BWP belong to multiple BWPs, and there is at least one search space set associated with the first RNTI on each BWP among the multiple BWPs.
  • the first information may be carried by DCI, RRC signaling, or media access control (media access control, MAC) control element (control element, CE) signaling.
  • the first information may be carried by a PDCCH scrambled by a common RNTI, or the first information may be carried by a broadcast message (for example, carried by a PDSCH).
  • the first information may be the first parameter, that is to say, the terminal device receives the first information from the network device, and the first information is the first parameter.
  • the BWP is the first BWP, that is, the BWP that monitors the PDCCH scrambled by the first RNTI among the configured multiple BWPs.
  • the terminal device does not expect more than one BWP among the multiple configured BWPs to configure the first parameter. If one of the multiple configured BWPs is not configured with the first parameter, it means that the BWP is the second BWP or other BWPs except the first BWP.
  • the first information may also be represented by 1 bit. For example, if the bit is set to 1, it means that the BWP including the first information is the first BWP. If the bit is set to 0, it means that the BWP including the first information is not the first BWP. is a BWP other than the first BWP among the multiple configured BWPs, for example, the second BWP.
  • the first information may indicate a BWP index, and the BWP corresponding to the index indicated by the first information is the first BWP.
  • the first information may represent the identification (ID) of the BWP, for example, the first information is represented by 2 bits.
  • the first information may indicate the serial number of the frequency domain position of the BWP.
  • the network device indicates that the first BWP is the BWP that monitors the PDCCH scrambled by the first RNTI among the configured multiple BWPs, so that flexibility can be ensured, and the terminal device can reach an agreement with the network device.
  • Step S302 The network device determines that both the first search space set on the first BWP and the second search space set on the second BWP are associated with the first RNTI. The details are similar to step S301, and will not be repeated here.
  • Step S303 When the first BWP is the activated BWP, the terminal device monitors the physical downlink control channel PDCCH scrambled by the first RNTI in the first search space set.
  • a terminal device may be configured with multiple BWPs in a cell, and only one of the BWPs is in an active state, which is called an activated BWP.
  • the terminal device receives second information from the network device, and the second information is used to indicate whether the terminal device switches the first BWP to the active BWP and listens to the first RNTI in the first search space set. Scrambled PDCCH.
  • the second information may be preconfigured or dynamically indicated.
  • the second information may be carried by RRC signaling, or carried by DCI, or carried by MAC CE.
  • DCI may include at least one of the following: DCI format 0_1, DCI format 1_1, DCI format 0_2, DCI format 1_2.
  • the second information may be received when a BWP other than the first BWP among the configured multiple BWPs is an active BWP, or may be received when the first BWP is an active BWP.
  • the second information is used to indicate whether the terminal device switches from a BWP other than the first BWP among the configured multiple BWPs to the first BWP and listens in the first search space set scrambled by the first RNTI The PDCCH.
  • at least one search space set is associated with the first RNTI on each of the configured multiple BWPs.
  • the network device can indicate or pre-define the protocol, when the third BWP is the active BWP, when the terminal device switches from the third BWP To the first BWP, for example, the terminal device may start the listening opportunity of one listening period of the first search space set, or be separated from the beginning of the listening opportunity of one period of the first search space set at a time of the first duration, Complete the switch from the third BWP to the first BWP, and monitor the PDCCH scrambled by the first RNTI in the first search space set.
  • the terminal device may start the listening opportunity of one listening period of the first search space set, or be separated from the beginning of the listening opportunity of one period of the first search space set at a time of the first duration, Complete the switch from the third BWP to the first BWP, and monitor the PDCCH scrambled by the first RNTI in the first search space set.
  • the terminal device starts from the first time slot, or at the same time as the first time slot At a time interval of a first duration before the start, the switch from the third BWP to the first BWP is completed and the PDCCH scrambled by the first RNTI is monitored at the monitoring occasion of the one monitoring cycle of the first search space set.
  • the second information if the second information is received when the first BWP is the activated BWP, the second information does not take effect when the first BWP is activated, because the first BWP is already the activated BWP, and there is no question whether to The first BWP switches to the active BWP for this argument now. That is to say, no matter when the second information is received, as long as the first BWP is the activated BWP, the second information will not take effect.
  • the second information takes effect only when a BWP other than the first BWP among the configured multiple BWPs is an active BWP. In an implementation manner, when any BWP except the first BWP among the multiple configured BWPs is an active BWP, the second information is valid.
  • the second information when the second information is received when a BWP other than the first BWP among the configured multiple BWPs is an active BWP, the second information takes effect only when the BWP is an active BWP .
  • the second information may be sent periodically.
  • the second information is carried by the PDCCH, and the network device configures a monitoring cycle for monitoring the search space set of the second information.
  • the second information may be sent at the monitoring opportunity of each monitoring cycle.
  • the second information may be associated with a valid period, and the indication of the second information takes effect within the valid period. For example, if the second information indicates that the terminal device does not switch the first BWP to the active BWP, that is, it does not need to monitor the PDCCH scrambled by the first RNTI in the first search space set, within the effective duration of the second information, the terminal None of the devices need to switch the first BWP to the active BWP.
  • the network device may configure the terminal device or the protocol stipulates the default behavior of the terminal device when the network device does not send the second information to the terminal device or the terminal device does not receive the second information from the terminal device.
  • the default behavior of the terminal device is: the terminal device does not switch the first BWP to the active BWP and monitors the PDCCH scrambled by the first RNTI in the first search space set.
  • the network device may not need to A set of search spaces sends the PDCCH scrambled by the first RNTI to the terminal equipment, which can save resource overhead and power consumption of network equipment, and improve resource utilization efficiency.
  • the terminal equipment can also avoid BWP switching and unnecessary PDCCH monitoring, which can save the power consumption of the terminal equipment, and can also reduce the interruption time of the terminal equipment, which is beneficial to reduce the data delay.
  • the second information does not simply indicate BWP switching, but indicates whether the terminal device is to monitor the PDCCH scrambled by the first RNTI, since the network device will only send the PDCCH scrambled by the first RNTI at the first BWP, Therefore, the function of the second message includes switching the first BWP to the active BWP.
  • the terminal device determines to switch the first BWP to the activated BWP according to the second information; the terminal device starts or listens at a listening timing of at least one listening period of the first search space set Before starting, switch the first BWP to the active BWP, and monitor the PDCCH scrambled by the first RNTI at the listening timing of the at least one listening period; the terminal device ends the listening timing of the at least one listening period, or at the After the monitoring opportunity of the at least one monitoring period is over, the second time interval is completed, and the switch from the first BWP to the third BWP is completed, as shown in Figure 4; An activated BWP; or, the terminal device continues to stay in the first BWP after the listening opportunity of at least one listening period ends.
  • the at least one listening period may be the next listening period of the terminal device in the first search space set, for example, when the third BWP is the activated BWP, the terminal device receives the second information, and the second information indicates that the terminal device will
  • the first BWP switches to the activated BWP and monitors the PDCCH scrambled by the first RNTI in the first search space set, and then starts or Before the listening opportunity starts, the terminal device switches the first BWP to the active BWP.
  • the at least one listening period may be every subsequent listening period of the terminal device in the first search space set.
  • the terminal device receives the second information, and the second information instructs the terminal device to switch the first BWP to the activated BWP and listen in the first search space set A PDCCH scrambled by an RNTI
  • the terminal device switches the first BWP to the active BWP before the start of the listening opportunity of each listening cycle of the first search space set, and the listening of the first search space set
  • the terminal device will switch from the first BWP back to the third BWP.
  • the BWP is switched to the third BWP. In this way, since the terminal device will switch back to the third BWP every time, the terminal device can temporarily go to the first BWP to monitor the data set by the first RNTI in each monitoring period after the first search space set. Scrambled PDCCH.
  • the at least one listening period may be the next effective listening period of the terminal device in the first search space set, or may be every effective listening period of the terminal device in the first search space set after that.
  • the first duration and the second duration may be indicated by a network device, pre-defined by a protocol, or determined by a terminal reporting capability. Its length can be greater than 0, or equal to 0.
  • the first duration may be equal to the second duration, or greater than, or less than the second duration.
  • the length is greater than or equal to the time period for the terminal device to perform RF handover, or greater than or equal to the time period for the terminal device to perform BWP handover.
  • the terminal device continues to stay in the first BWP after the monitoring opportunity of the at least one monitoring period ends, which means that the terminal device does not perform BWP switching but still maintains the first BWP after the monitoring opportunity of the at least one monitoring period ends.
  • a BWP is the active BWP.
  • the second information indicates switching from the third BWP to the first BWP and monitoring the PDCCH scrambled by the first RNTI in the first search space set, that is to say, the second information indicates switching the first BWP to
  • the activated BWP monitors the PDCCH scrambled by the first RNTI in the first search space set, wherein the third BWP is the previous activated BWP before the first BWP is switched to the activated BWP; correspondingly, the terminal device receives from After the second information of the network device, switch from the third BWP to the first BWP and monitor the PDCCH scrambled by the first RNTI in the first search space set, as shown in Figure 4, assuming that there are 3 monitoring opportunities in at least one monitoring period time slots, the terminal device switches from the first BWP to the third BWP at the end of the third time slot, or after a second time interval between the end of the third time slot and the end of the third time slot.
  • the terminal device switches from the first B
  • the third BWP may be one of the configured multiple BWPs, that is, the third BWP also includes the search space set associated with the first RNTI. Alternatively, the third BWP may not include the set of search spaces associated with the first RNTI.
  • the terminal device switches from the second BWP to the first BWP within at least one time window of the periodic time window and the first BWP within the first BWP
  • the listening occasion of the search space set listens to the PDCCH scrambled by the first RNTI.
  • the periodic time window occurs periodically.
  • Each time window in the periodic time window includes at least one listening time slot of the listening opportunity of the first search space set, and the period of the periodic time window is equal to N times the listening period of the first search space set, and N is greater than or equal to A positive integer of 1, the length of each time window of the periodic time window is less than the period of the periodic time window.
  • the periodic time window may be configured or indicated by a network device, or pre-defined by a protocol.
  • the at least one time window may be when the second BWP is an activated BWP, the terminal device is in the next time window of the periodic time window. Specifically, the terminal device switches from the second BWP to the first BWP within at least one time window of the periodic time window and monitors the PDCCH scrambled by the first RNTI at the monitoring opportunity of the first search space set in the first BWP, It can be understood that the terminal device switches from the second BWP to the first BWP in each time window of the periodic time window and monitors the PDCCH scrambled by the first RNTI at the monitoring opportunity of the first search space set in the first BWP, Alternatively, the terminal device switches from the second BWP to the first BWP within a partial time window of the periodic time window and listens to the PDCCH scrambled by the first RNTI at the listening opportunity of the first search space set in the first BWP, for example, As long as the second BWP is the active BWP, the terminal device switches
  • the at least one time window may be when the second BWP is an activated BWP, the terminal device is in the next valid time window of the periodic time window, and the valid time window includes the effective monitoring of the first RNTI At least one listening slot in the opportunity.
  • the terminal device may receive indication information from the network device, the indication information indicating which time windows in the periodic time window the terminal device switches from the second BWP to the first BWP and within the first BWP
  • the monitoring opportunity of the first search space set of the first search space set monitors the PDCCH scrambled by the first RNTI.
  • the terminal device determines to switch from the second BWP to the first BWP within a partial time window of the periodic time window according to the indication information.
  • the listening occasions of the first search space set in the first BWP listen to the PDCCH scrambled by the first RNTI.
  • the period of the periodic time window is twice the listening period of the first search space set, and the length of each time window of the periodic time window is greater than that of the first search space set.
  • each time window of the periodic time window may also be equal to or smaller than the length of the listening time slot included in the listening occasion of one listening period of the first search space set.
  • the terminal device finishes switching from the first BWP back to the second BWP before or before the end of the at least one time window; or, the terminal device continues to stay in the second BWP after the at least one time window ends or ends In the first BWP.
  • the terminal device continues to stay in the first BWP after at least one time window ends or ends may mean that the terminal device does not perform BWP switching after at least one time window ends or ends, and maintains the first BWP as the active BWP.
  • the terminal device switches from the second BWP to the first BWP within the at least one time window, after listening to the PDCCH scrambled by the first RNTI during the listening time of the at least one listening period of the first search space set , whether to switch back to the second BWP before or after the end of the at least one time window may be indicated by the network device, or pre-defined by the protocol.
  • the terminal device when the terminal device switches from the second BWP to the first BWP within the at least one time window, the terminal device does not need to receive data or send data on the second BWP within the at least one time window.
  • the terminal device switches from the second BWP to the first BWP, and
  • the first search space set in the first BWP monitors the PDCCH scrambled by the first RNTI, and at least one of the following situations includes:
  • the terminal device does not transmit uplink and/or downlink data on the second BWP;
  • the terminal device is in a discontinuous reception DRX inactive time at the second BWP;
  • the terminal device determines not to monitor the PDCCH at the second BWP;
  • the terminal device determines that there is no transmission occasion of any reference signal in the second BWP.
  • the terminal device continues to maintain the second BWP as the activated BWP.
  • which one or several of the at least one situation may be indicated by a network device or pre-defined by a protocol.
  • the window length of a time window including the listening occasions (or effective listening occasions) of the first search space set may be indicated by a network device, or pre-defined by a protocol.
  • the time domain position of the time window relative to the listening opportunity of the first search space set may also be indicated by the network device, or predefined by the protocol.
  • one period of listening opportunities in the first search space set includes 3 listening time slots
  • the duration of the time window is equal to 5 time slots
  • the start of the time window is located at the beginning of one period of listening opportunities in the first search space set.
  • the time window is one time slot before the start of the time window
  • the end of the time window is one time slot after the end of the listening opportunity of one period of the first search space set, as shown in FIG. 6 .
  • whether to switch back to the second BWP can be indicated by the network device, or the protocol can be pre-defined.
  • the network device may indicate or pre-define by agreement that when a BWP other than the first BWP is the active BWP, the terminal device temporarily switches the first BWP to the active BWP and performs the first search space set Whether to switch the first BWP to the active BWP and monitor the PDCCH scrambled by the first RNTI at the monitoring opportunity of the first search space set, without switching back to the previous BWP. If it is temporary, the terminal device will switch back to the previous BWP after switching the first BWP to the active BWP and listening to the PDCCH scrambled by the first RNTI at the listening occasion of the first search space set.
  • Step S304 When the first BWP is an activated BWP, the network device sends the physical downlink control channel PDCCH scrambled by the first RNTI to the terminal device in the first search space set.
  • Step S305 When the second BWP is the activated BWP, the terminal device determines not to monitor the PDCCH scrambled by the first RNTI in the second search space set.
  • the terminal device determines not to listen to the PDCCH scrambled by the first RNTI in the second search space set, which may mean that when the second BWP is the activated BWP, the terminal device determines that the The second search space set does not monitor the PDCCH scrambled by the first RNTI associated with the second search space set; but the terminal device determines to monitor the PDCCHs scrambled by all other RNTIs associated with the second search space set in the second search space set.
  • all other RNTIs do not include one or more public RNTIs included in the first RNTI.
  • the second search space set is a Type 3-PDCCH public search space set (Type3-PDCCH CSS), and the search space set may be associated with the following RNTIs at the same time: public RNTI (INT-RNTI, SFI-RNTI, TPC-PUSCH-RNTI , TPC-PUCCH-RNTI, TPC-SRS-RNTI, or CI-RNTI) and UE-specific RNTI (C-RNTI, MCS-C-RNTI, CS-RNTI(s), or PS-RNTI), when the second When the BWP is the activated BWP, the terminal device determines that it does not listen to the information provided by the public RNTI (INT-RNTI, SFI-RNTI, TPC-PUSCH-RNTI, TPC-PUCCH-RNTI, TPC-SRS-RNTI, or CI) in the second search space set.
  • -RNTI scrambled PDCCH, but can monitor PDCCH scrambled by UE-specific RNTI
  • the terminal device when the second BWP is the activated BWP, if the terminal device does not receive the instruction information instructing the terminal device to monitor the PDCCH scrambled by the first RNTI, unless the network device switches the second BWP to For other BWPs, the terminal device always maintains the second BWP as the active BWP, does not switch the first BWP to the active BWP, and does not monitor the PDCCH scrambled by the first RNTI in the second search space set.
  • the terminal device does not monitor any PDCCH in the second search space set; if the second search space set is associated with other RNTIs except the first RNTI, the terminal device The PDCCH scrambled by the first RNTI is not monitored in the second search space set, but the PDCCH scrambled by the other RNTIs can be monitored.
  • different RNTIs may define different priorities, and the priorities may be indicated by a network device or pre-defined by a protocol.
  • the terminal device determines not to monitor the PDCCH scrambled by the first RNTI associated with the second search space set in the second search space set, but the terminal device determines that in the second search space set The set of spaces listens to PDCCHs scrambled by said all other RNTIs associated with the second set of search spaces.
  • the terminal device determines not to monitor the PDCCH scrambled by the first RNTI in the second search space set; it may also mean that when the second BWP is the activated BWP, the terminal device determines The PDCCH scrambled by the first RNTI associated with the second search space set and all other RNTIs associated with the second search space set is not monitored in the second search space set.
  • the terminal device can switch from the second BWP to the first BWP, and monitor the first PDCCH scrambled by RNTI.
  • the terminal device determines to switch from the second BWP to the first BWP according to the priority of the RNTI and monitors the PDCCH scrambled by the first RNTI at the monitoring opportunity of the first search space set, the terminal device The second BWP is switched to the first BWP. After monitoring the PDCCH scrambled by the first RNTI, whether to switch back to the second BWP can be indicated by a network device, or pre-defined by a protocol.
  • the terminal device determines not to monitor the PDCCH scrambled by the first RNTI in the second search space set, including:
  • the third information is used to instruct the terminal device to monitor the PDCCH scrambled by the first RNTI in the second BWP, and the terminal device determines that in The second set of search spaces does not listen to the PDCCH scrambled by the first RNTI; or;
  • the terminal device When the second BWP is the activated BWP, and the terminal device receives fourth information from the network device, the fourth information is used to instruct the terminal device not to monitor the PDCCH scrambled by the first RNTI in the second BWP, and the terminal device determines that the The second set of search spaces does not listen to the PDCCH scrambled by the first RNTI.
  • the terminal device when the second BWP is an activated BWP, and the terminal device receives third information from the network device, the third information is used to instruct the terminal device to listen to the information added by the first RNTI in the second BWP. scrambled PDCCH, the terminal device determines to monitor the PDCCH scrambled by the first RNTI in the second search space set. In this case, when the second BWP is the active BWP, the terminal device can monitor the PDCCH scrambled by the first RNTI in the second search space set.
  • the network device can send the third information, so that the terminal device can also listen to the information sent by the second BWP.
  • a PDCCH scrambled by the RNTI which can reduce the BWP switching of the terminal equipment, reduce the data interruption of the UE in the second BWP, and reduce the data delay.
  • the third information and the fourth information may be carried by the same signaling, or carried by the same bit, for example, when the bit is set to 1, it indicates the third information, and when the bit is set to 0, it indicates the fourth information.
  • the third information and the fourth information may also be carried by different signaling.
  • the network device configures the terminal device to monitor the DCI in the first search space set format 2_6.
  • the DCI scrambled by the PS-RNTI in the CRC is used to carry a wake-up signal
  • the wake-up signal is used to indicate whether the terminal equipment starts a DRX on-duration timer (drx-onDuration Timer) of the next long DRX cycle.
  • the PDCCH carrying the DCI is sent before the DRX duration (On Duration).
  • the first RNTI is a PS-RNTI
  • the second BWP is an activated BWP
  • the method further includes:
  • Circumstances include:
  • the first case all effective listening opportunities of the PS-RNTI before the DRX duration of the next long DRX cycle are within the DRX activation time;
  • the second case at least one effective listening opportunity among all effective listening opportunities of the PS-RNTI is within the DRX activation time.
  • which one or any one of the first condition and the second condition is specifically met may be indicated by a network device or pre-defined by a protocol.
  • the duration of the DRX duration is determined by the timing duration of the DRX duration timer, and the start of the DRX duration of the next long DRX cycle is the same as the start of the next long DRX cycle
  • the effective listening opportunity of the PS-RNTI is the monitoring opportunity for the terminal equipment to monitor the PDCCH scrambled by the PS-RNTI, and the effective listening opportunity of the PS-RNTI is associated with the DRX duration timer of the next long DRX cycle. If the terminal device wants to start the DRX duration timer of the next long DRX cycle, the terminal device will start the DRX duration timer at the beginning of the next long DRX cycle.
  • the effective listening opportunity of the PS-RNTI is the listening opportunity of the first search space set in the first Ts time slots of the time window, and this time window is called a time window for listening to the PS-RNTI.
  • the start time of the time window is configured by high-layer signaling, and the start time of the time window is the time interval between the start time of the DRX duration and the time of the third duration.
  • the third time length is determined by the signaling ps -Offset indication.
  • the terminal device may report a fourth duration of the capability indication, and the fourth duration is used to determine the end moment of the time window, and the end moment of the time window is the moment separated by the fourth duration from the start moment of the DRX duration.
  • the fourth duration is shorter than the third duration, and if the terminal device does not report the capability indication information indicating the fourth duration, the end time of the time window is the start time of the DRX duration.
  • the following situations may also include:
  • the interval between the end of the DRX activation time in the second BWP and the start of the time window for listening to PS-RNTI before the start of the next long DRX cycle is less than the fifth duration; or the DRX activation time
  • the interval between the end moment of the DRX activation time and the start moment of the first listening time slot of the PS-RNTI listening opportunity within the time window for listening to the PS-RNTI is less than the fifth duration; or the end moment of the DRX activation time is the same as the
  • the interval between the starting moments of the last monitoring time slot of the PS-RNTI monitoring opportunity within the time window for monitoring the PS-RNTI is less than the fifth duration; or,
  • the terminal device determines the time between the end time of the last data transmission in the second BWP or a time interval after the last data transmission before switching to the first BWP, and the start time of the time window for listening to the PS-RNTI When the duration between is less than the fifth duration; or, at the end of the last data transmission in the second BWP before switching to the first BWP or at a time interval after the last data transmission, the listening PS-RNTI
  • the interval between the start moments of the first listening time slot of the listening occasions of the PS-RNTI within the time window is less than the fifth duration; or, the last data transmission in the second BWP before switching to the first BWP
  • the end moment of or the moment of a period of time after the last data transmission, and the interval between the start moment of the last listening time slot of the PS-RNTI listening opportunity within the listening time window of the PS-RNTI is less than the fifth duration .
  • the fifth duration is specified by the protocol or indicated by the instruction information; the length of the fifth duration may be greater than 0 or equal to 0.
  • the length of the fifth duration is greater than or equal to the duration for the terminal device to perform RF handover, or greater than or equal to the duration for the terminal device to perform BWP handover.
  • the terminal device switches the first BWP to the active BWP and performs the monitoring at the first search space set (or effective monitoring time) Listen to PDCCH scrambled by PS-RNTI.
  • the first RNTI is a PS-RNTI
  • the second BWP is an activated BWP
  • the method further includes: after the end of the DRX activation time in the second BWP, the terminal device starts to execute the process from the second BWP Switch to first BWP. It should be understood that it takes a certain amount of time for the terminal device to switch from the second BWP to the first BWP. Here, it is the end of the DRX activation time in the second BWP, and starts to switch from the second BWP to the first BWP.
  • the end of the DRX activation time is judged by the timeout of the DRX inactivity timer (drx-InactivityTimer). It can also be understood that the terminal device triggers the terminal device to start switching from the second BWP to the first BWP when the DRX inactivation timer expires.
  • the first RNTI is PS-RNTI
  • the terminal device monitors the PDCCH scrambled by the PS-RNTI at the first BWP
  • the DCI carried by the PDCCH instructs the terminal device not to start the next long DRX cycle
  • the DRX duration timer the terminal device does not start the DRX duration timer of the next long DRX cycle, and the terminal device continues to stay in the first BWP.
  • the DCI carried by the PDCCH indicates that the terminal device does not start the DRX duration timer of the next long DRX cycle may mean that the DCI indicates that the terminal device does not wake up, and that the terminal device continues to stay in the first BWP means that the terminal device does not perform BWP switching, that is The first BWP is maintained as the active BWP. In this way, since the terminal device does not need to wake up, it does not need to receive data, so it only needs to stay in the first BWP, and does not need to switch back to the previous BWP, which can avoid frequent BWP switching.
  • the first RNTI is PS-RNTI
  • the terminal device switches from the fourth BWP to the first BWP and monitors the PDCCH scrambled by the PS-RNTI at the first BWP
  • the DCI carried by the PDCCH indicates The terminal device starts the DRX duration timer of the next long DRX cycle
  • the terminal device switches from the first BWP back to the fourth BWP
  • the terminal device starts the DRX duration timer of the next long DRX cycle.
  • the fourth BWP is the previous activated BWP before switching the first BWP to the activated BWP; the fourth BWP is a BWP except the first BWP among the multiple configured BWPs.
  • the present invention does not limit the fourth BWP to include the associated PS-RNTI.
  • a search space set of an RNTI, that is, the fourth BWP may not include the search space set associated with the first RNTI.
  • the DCI carried by the PDCCH instructs the terminal device to start the DRX duration timer of the next long DRX cycle may mean that the DCI carried by the PDCCH instructs the terminal device to wake up.
  • the first RNTI is PS-RNTI
  • the terminal device switches from the fourth BWP to the first BWP and monitors the PDCCH scrambled by the PS-RNTI at the first BWP
  • the DCI carried by the PDCCH indicates The terminal device starts the DRX duration timer of the next long DRX cycle
  • the terminal device starts the DRX duration timer of the next long DRX cycle
  • the terminal device continues to stay in the first BWP.
  • the fourth BWP is the previous activated BWP before switching the first BWP to the activated BWP
  • the fourth BWP is a BWP except the first BWP among the multiple configured BWPs.
  • the terminal device switches from the previous BWP to the first BWP and monitors the PDCCH scrambled by PS-RNTI in the first BWP, and the DCI carried by the PDCCH instructs the terminal device to start the DRX duration timer of the next long DRX cycle , whether the terminal device switches back to the previous BWP can be indicated by the network device, or pre-defined by the protocol.
  • the first RNTI is a PS-RNTI
  • the terminal device does not monitor the PDCCH scrambled by the PS-RNTI at the first BWP, specifically including the following situations:
  • the high-level signaling instructs the terminal device to start the next DRX duration timer when it does not listen to the PDCCH scrambled by PS-RNTI, then the terminal device does not start the next DRX duration timer , the terminal device continues to stay at the first BWP.
  • the high-level signaling instructs the terminal device to start the DRX duration timer of the next long DRX cycle when it does not listen to the PDCCH scrambled by PS-RNTI, then the terminal device starts the next long DRX Periodic DRX duration timer, the terminal device switches from the first BWP back to the fourth BWP; wherein, the fourth BWP is the previous activated BWP before switching the first BWP to the activated BWP; or; the terminal device can also start The DRX duration timer of the next long DRX cycle, and continue to stay at the first BWP.
  • Step S306 When the second BWP is the activated BWP, the network device determines not to send the PDCCH scrambled by the first RNTI to the terminal device in the second search space set.
  • the terminal device monitors the physical downlink control channel PDCCH scrambled by the first RNTI in the first search space set, and correspondingly, the network device needs to send the physical downlink control channel scrambled by the first RNTI to the terminal device in the first search space set PDCCH; when the second BWP is the activated BWP, the terminal device determines not to monitor the PDCCH scrambled by the first RNTI in the second search space set, and correspondingly, the network device does not need to send the terminal device in the second search space set
  • the physical downlink control channel PDCCH scrambled by the first RNTI can avoid the first BWP
  • the terminal device monitors the physical downlink control channel PDCCH scrambled by the first RNTI in
  • Physical downlink control channel PDCCH when the second BWP is the activated BWP, the terminal device determines to monitor the PDCCH scrambled by the first RNTI in the second search space set, and correspondingly, the network device sends to the terminal device in the second search space set
  • the physical downlink control channel PDCCH scrambled by the first RNTI occurs, thereby preventing the network device from sending the PDCCH scrambled by the first RNTI at both the first BWP and the second BWP, thereby saving resource overhead and network device power consumption , improve resource utilization efficiency.
  • FIG. 8 is a schematic structural diagram of a communication device 800 provided by an embodiment of the present application.
  • the device may be a terminal device or a chip in a terminal device.
  • the communication device may include a communication unit 801 and a processing unit 802, where , the communication unit 801 is used to execute the steps of S301, S303, S305, etc. in the foregoing method embodiments in which the terminal device executes information transmission/reception; the processing unit 802 is configured to execute the steps of S303, S305, etc. A step of.
  • FIG. 8 is a schematic structural diagram of a communication device 800 provided by an embodiment of the present application.
  • the device may be a network device or a chip in a network device.
  • the communication device may include a communication unit 801 and a processing unit 802, wherein The communication unit 801 is configured to execute the steps performed by the network device in S302 and the like in the foregoing method embodiments; the processing unit 802 is configured to execute the steps executed by the network device in the foregoing method embodiments such as S304 and S306.
  • FIG. 9 is a communication device 900 provided by an embodiment of the present application.
  • the device 900 includes at least one processor 901 and a communication interface 903.
  • it also includes a memory 902.
  • the processor 901, memory 902 and communication interface 903 are connected to each other through bus 904 .
  • Memory 902 includes, but is not limited to, random access memory (random access memory, RAM), read-only memory (read-only memory, ROM), erasable programmable read-only memory (erasable programmable read only memory, EPROM), or Portable read-only memory (compact disc read-only memory, CD-ROM), the memory 902 is used for related computer programs and data.
  • the communication interface 903 is used to receive and send data.
  • the processor 901 may be one or more central processing units (central processing unit, CPU).
  • CPU central processing unit
  • the CPU may be a single-core CPU or a multi-core CPU.
  • the processor 901 in the device 900 is used to read the computer program codes stored in the memory 902 to realize the functions of the above-mentioned processing unit 802 , and the communication interface 903 is used to realize the functions of the above-mentioned communication unit 801 .
  • processor in the embodiments of the present application may be a central processing unit (central processing unit, CPU), and may also be other general processors, digital signal processors (digital signal processor, DSP), application specific integrated circuits (application specific integrated Circuit, ASIC), field programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof.
  • CPU central processing unit
  • DSP digital signal processor
  • ASIC application specific integrated circuits
  • FPGA field programmable gate array
  • a general-purpose processor can be a microprocessor, or any conventional processor.
  • the method steps in the embodiments of the present application may be implemented by means of hardware, or may be implemented by means of a processor executing software instructions.
  • Software instructions can be composed of corresponding software modules, and software modules can be stored in random access memory, flash memory, read-only memory, programmable read-only memory, erasable programmable read-only memory, electrically erasable programmable read-only Memory, registers, hard disk, removable hard disk, CD-ROM or any other form of storage medium known in the art.
  • An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium.
  • the storage medium may also be a component of the processor.
  • the processor and storage medium can be located in the ASIC.
  • the ASIC can be located in a network device or a terminal device. Certainly, the processor and the storage medium may also exist in the network device or the terminal device as discrete components.
  • all or part of them may be implemented by software, hardware, firmware or any combination thereof.
  • software When implemented using software, it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product comprises one or more computer programs or instructions. When the computer program or instructions are loaded and executed on the computer, the processes or functions described in the embodiments of the present application are executed in whole or in part.
  • the computer may be a general purpose computer, a special purpose computer, a computer network, network equipment, user equipment, or other programmable devices.
  • the computer program or instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer program or instructions may be downloaded from a website, computer, A server or data center transmits to another website site, computer, server or data center by wired or wireless means.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server or a data center integrating one or more available media.
  • the available medium may be a magnetic medium, such as a floppy disk, a hard disk, or a magnetic tape; it may also be an optical medium, such as a digital video disk; and it may also be a semiconductor medium, such as a solid state disk.
  • “at least one” means one or more, and “multiple” means two or more.
  • “And/or” describes the association relationship of associated objects, indicating that there can be three types of relationships, for example, A and/or B, which can mean: A exists alone, A and B exist at the same time, and B exists alone, where A, B can be singular or plural.
  • the character “/” generally indicates that the contextual objects are an “or” relationship; in the formulas of this application, the character “/” indicates that the contextual objects are a "division” Relationship.

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Abstract

Les modes de réalisation de la présente demande concernent un procédé et un appareil de communication. Le procédé comprend les étapes suivantes : un dispositif terminal détermine qu'un premier ensemble d'espaces de recherche sur une première partie de bande passante (BWP) et un second ensemble d'espaces de recherche sur une seconde BWP sont associés à une première identité temporaire de réseau radio (RNTI) ; lorsque la première BWP est une BWP active, le dispositif de terminal surveille, dans le premier ensemble d'espaces de recherche, un canal physique de commande de liaison descendante (PDCCH) brouillé par la première RNTI ; et lorsque la seconde BWP est une BWP active, le dispositif terminal détermine de ne pas surveiller, dans le second ensemble d'espaces de recherche, le PDCCH brouillé par la première RNTI. Au moyen des modes de réalisation de la présente demande, les surdébits de ressources peuvent être réduits et la consommation d'énergie d'un dispositif de réseau peut être réduite, ce qui permet d'améliorer l'efficacité d'utilisation des ressources.
PCT/CN2022/100227 2021-07-16 2022-06-21 Procédé et appareil de communication Ceased WO2023284500A1 (fr)

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CN111602420A (zh) * 2018-01-09 2020-08-28 富士通株式会社 部分带宽定时方法以及装置、通信系统
CN111971925A (zh) * 2018-04-06 2020-11-20 联想（新加坡）私人有限公司 配置带宽部分
WO2020000286A1 (fr) * 2018-06-28 2020-01-02 Oppo广东移动通信有限公司 Procédé d'activation d'une partie de bande passante, dispositif terminal et dispositif de réseau
US20200337029A1 (en) * 2019-04-16 2020-10-22 Yunjung Yi Monitoring Downlink Control Information Supporting Multiple Services

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