Carrier switching indication method and related products

Abstract

The embodiment of the present application provides a carrier switching indication method and related products, the method comprising: a UE receives configuration information of a base station, the configuration information comprising: configuration information of multiple carriers configured for the UE, at least one of the multiple carriers being configured with a physical layer identifier; the UE receives downlink control information DCI of the base station, the DCI comprising: a carrier switching indication, the UE determines a target carrier from the multiple carriers according to the carrier switching indication of the DCI; the UE determines a random access mode of the UE on the target carrier according to whether the target carrier is configured with a physical layer identifier. The technical solution provided by the present application has the advantage of high flexibility.

Description

Technical Field

[0001] The present application relates to the field of communication processing technology, and in particular to a carrier switching indication method and related products. Background Art

[0002] In the current communication system, the network (such as a base station or a control node) can instruct the UE to perform carrier switching through the carrier switching indication information (carrier switch config) in the radio resource control (radio resource control, RRC) reconfiguration information. Optionally, when the carrier switching indication information contains a physical layer identifier (t-PhysID), the UE (user equipment) uses t-PhysID to perform non-competitive access on the carrier specified by the channel number according to the carrier information configured by the system broadcast message, otherwise it performs competitive access. The current carrier switching is indicated by high-level signaling, and the high-level signaling has a very large delay in indicating carrier switching and is not flexible enough, which affects network performance. Summary of the invention

[0003] The embodiments of the present application disclose a carrier switching indication method and related products, which can flexibly perform carrier switching indication through downlink control information, thereby improving network flexibility and network performance.

[0004] In a first aspect, a carrier switching indication method is provided, the method being applied to a user equipment UE, and the method comprising the following steps:

[0005] The UE receives configuration information from the base station, where the configuration information includes: configuration information of multiple carriers configured for the UE, where at least one carrier among the multiple carriers is configured with a physical layer identifier;

[0006] The UE receives downlink control information DCI from a base station, where the DCI includes: a carrier switching indication, and the UE determines a target carrier from the multiple carriers according to the carrier switching indication of the DCI;

[0007] The UE determines a random access mode of the target carrier according to whether the target carrier is configured with a physical layer identifier.

[0008] In a second aspect, a carrier switching indication method is provided, the method being applied to a base station, the method comprising the following steps:

[0009] The base station sends configuration information to the UE, where the configuration information includes: configuration information of multiple carriers configured for the UE, where at least one carrier among the multiple carriers is configured with a physical layer identifier;

[0010] The base station sends downlink control information DCI to the UE, where the DCI includes: a carrier switching indication, and the carrier switching indication of the DCI is used to instruct the UE to determine a target carrier from the multiple carriers.

[0011] According to a third aspect, a user equipment is provided, the user equipment comprising:

[0012] A communication unit, configured to receive configuration information of a base station, the configuration information comprising: configuration information of multiple carriers configured for a UE, at least one of the multiple carriers being configured with a physical layer identifier;

[0013] The communication unit is further configured to receive downlink control information DCI from a base station, wherein the DCI includes: a carrier switching indication;

[0014] A processing unit is used to determine a target carrier from the multiple carriers according to the carrier switching indication of the DCI; and determine a random access mode of the UE on the target carrier according to whether the target carrier is configured with a physical layer identifier.

[0015] According to a fourth aspect, a base station is provided, the base station comprising:

[0016] A communication unit, configured to send configuration information to a UE, the configuration information comprising: configuration information of multiple carriers configured for the UE, at least one carrier among the multiple carriers being configured with a physical layer identifier;

[0017] The communication unit is further used to send downlink control information DCI to the UE, where the DCI includes: a carrier switching indication, and the carrier switching indication of the DCI is used to instruct the UE to determine a target carrier from the multiple carriers.

[0018] In a fifth aspect, an electronic device is provided, comprising a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor, and the program includes instructions for executing the steps in the method described in the first aspect or the second aspect.

[0019] In a sixth aspect, a computer-readable storage medium is provided, storing a computer program for electronic data exchange, wherein the computer program enables a computer to execute the method described in the first aspect or the second aspect.

[0020] In a seventh aspect, a computer program product is provided, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute some or all of the steps described in the first aspect or the second aspect of the embodiment of the present application. The computer program product may be a software installation package.

[0021] In an eighth aspect, a chip system is provided, which includes at least one processor, a memory and an interface circuit, wherein the memory, the transceiver and the at least one processor are interconnected via lines, and a computer program is stored in the at least one memory; when the computer program is executed by the processor, the method described in the first aspect or the second aspect is implemented.

[0022] The technical solution provided in the present application realizes flexible switching of carriers by combining configuration information and downlink control information, thereby improving network flexibility and network performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The following is an introduction to the drawings used in the embodiments of the present application.

[0024] Figure 1 is a system architecture diagram of an example communication system;

[0025] Figure 2 It is a flowchart of a carrier switching indication method provided by the present application;

[0026] Figure 3 It is a flowchart of a carrier switching indication method provided in Embodiment 1 of the present application;

[0027] Figure 4 It is a flowchart of a carrier switching indication method provided in Embodiment 2 of the present application;

[0028] Figure 5 It is a flowchart of a carrier switching indication method provided in Embodiment 3 of the present application;

[0029] Figure 6 4 is a flow chart of a carrier switching indication method provided in Embodiment 4 of the present application;

[0030] Figure 7 is a structural diagram of a user equipment provided in an embodiment of the present application;

[0031] Figure 8 It is a structural schematic diagram of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0032] The embodiments of the present application are described below in conjunction with the drawings in the embodiments of the present application.

[0033] The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article indicates that the associated objects before and after are in an "or" relationship.

[0034] The "multiple" that appears in the embodiments of the present application refers to two or more. The first, second, etc. descriptions that appear in the embodiments of the present application are only used for illustration and distinction of the description objects. There is no order, nor does it represent a special limitation on the number of devices in the embodiments of the present application, and cannot constitute any limitation on the embodiments of the present application. The "connection" that appears in the embodiments of the present application refers to various connection methods such as direct connection or indirect connection to achieve communication between devices, and the embodiments of the present application do not make any limitations on this.

[0035] The technical solution of the embodiment of the present application can be applied to Figure 1 The exemplary communication system 100 shown includes a terminal 110 and a network device 120 , wherein the terminal 110 is in communication connection with the network device 120 .

[0036] During the random access process, the UE (terminal equipment) supports the physical layer initial access process (referred to as the random access process) so that the base station (or control node) obtains the UE (terminal equipment) information. The UE (terminal equipment) performs random access based on the physical layer identifier, and the physical layer identifier contains at least the physical layer identifier field for non-contention access and the physical layer identifier field for contention access. The range of the physical layer identifier field for contention access is indicated by [contention PhysID-starting, contention PhysID-ending] in the communication domain system message.

[0037] The base station (or control node) is responsible for maintaining the mapping relationship between the UE (terminal equipment) and the physical layer identifier in the communication domain. The physical layer identifier is used to uniquely identify the UE (terminal equipment) in the communication domain. The physical layer identifier can be pre-configured or configured by the base station (or control node). The base station (or control node) can instruct the UE (terminal equipment) to save or update the physical layer identifier so that the UE (terminal equipment) can use the physical layer identifier to access the next time it randomly accesses, and can also instruct the UE (terminal equipment) to release the physical layer identifier. The base station (or control node) can perform physical layer identifier domain management based on the device type information of the UE (terminal equipment), which depends on the implementation of the base station (or control node).

[0038] The physical layer identifier can also be used for scheduling. After the security context is established, the base station (or control node) can configure a physical layer identifier for the UE (terminal device) for unicast communication, and can also configure one or more physical layer identifiers for the UE (terminal device) for multicast or broadcast. Among them, the physical layer identifier used for scheduling is not in the physical layer identifier domain of the contention access.

[0039] The random access process is initiated by the media access layer. Random access is divided into two modes: contention access and non-contention access.

[0040] The random access process is performed only when the access control information access type carried in the system broadcast message indicates that the corresponding type of device is allowed to access.

[0041] When the system broadcast message only contains the contention access resource configuration, all UEs (terminal equipment) adopt the contention access mode.

[0042] The modulation mode used in the random access method may be indicated by nonContention Access Modulation or Contention Access Modulation included in the access resource configuration information. When the configuration does not include the indication, a pre-configured modulation and coding mode is used for access.

[0043] The competitive access method includes a 4-step access process:

[0044] Step 1: The UE (terminal device) randomly selects a physical layer identifier from the range of [contentionPhysID-starting, contention PhysID-ending] indicated by the information element Contention Access Resource; The UE (terminal device) randomly selects an access resource from the contention access resources indicated by the information element Contention Access Resource, and the UE (terminal device) sends a physical layer identifier to the base station (or control node) on the access resource to indicate that it has a random access request.

[0045] Step 2: The base station (or control node) configures sending resources for the UE (terminal equipment) through downlink control information;

[0046] The base station (or control node) configures resources for the UE (terminal equipment) to send more information, and sends scheduling signaling through downlink control signaling. The cyclic redundancy check of the scheduling signaling is scrambled by the physical layer identifier of the UE (terminal equipment).

[0047] Step 3: The UE (terminal device) sends an identifier for conflict resolution (contained in the xrc SetupRequest message) on the configured resources, wherein the identifier for conflict resolution is a media access layer identifier. The media access layer identifier is a globally unique identifier that can uniquely distinguish the UE (terminal device). Optionally, the UE (terminal device) can also report UE (terminal device) capability information and UE (terminal device) auxiliary information to the base station (or control node) through XRC signaling on the configured resources. In addition, the UE (terminal device) can also report the size of the link control layer data in the form of MAC CE on the configured resources.

[0048] Step 4: The base station (or control node) sends a response message xrc Setup to the UE (terminal device), which carries the identifier for conflict resolution reported by the UE (terminal device). The UE (terminal device) receives the response message and determines whether access is successful based on the identifier for conflict resolution.

[0049] After step 1, the UE (terminal device) receives the signaling of resource configuration from the base station (or control node) in the subsequent superframe. If the corresponding resource configuration signaling is not received in the consecutive waiting Window superframes after the superframe in which the access information is sent, the access fails. When the access failure is determined, the UE (terminal device) randomly selects a value t in [1, back off Window], backs off for t superframes, and then initiates the random access process again.

[0050] After the security authentication is completed, the base station (or control node) can configure a unique physical layer identifier within the communication domain for the UE (terminal equipment) for scheduling.

[0051] Non-contention access uses a two-step access process:

[0052] Step 1: The UE (terminal device) uniquely determines the non-conflicting access resource based on the pre-configured or stored physical layer identifier and the non-contention access resource Non Contention Access Resource contained in the communication domain system broadcast message; and sends the pre-configured or stored physical layer identifier on the access resource. Specifically, the UE (terminal device) determines the index of the access resource using the modulus operation MODE(T-PhysID, numY) of the physical layer identifier and numY, thereby determining the corresponding non-contention access resource.

[0053] Step 2: The base station (or control node) sends a response message xrcSetup to the UE (terminal device), wherein the response message includes the physical layer identifier of the UE (terminal device), thereby responding to the access request of the UE (terminal device).

[0054] After step 1, the UE (terminal device) receives the response message xrcSetup sent by the base station (or control node) in the subsequent superframe. If no corresponding response message is received within the consecutive waitingWindow superframes after the superframe in which the access information is sent, the access fails. When the access failure is determined, the UE (terminal device) uses the next non-competitive access resource to send the access information.

[0055] Common DCI (common downlink control information) means that all UEs in a cell or a group of UEs in a cell can receive this control information. The transmission parameter configuration related to the downlink common control information is sent to the UE through a broadcast message or RRC dedicated signaling. The downlink control information at the UE level (UE dedicated) can only be received by a specific UE, and the transmission parameter configuration related to the downlink control information at the UE level (UE dedicated) is configured through RRC dedicated signaling.

[0056] See also Figure 2 , Figure 2 A carrier switching indication method is provided. Figure 1 The communication system shown is executed as Figure 1 The terminal shown may be a UE, and the network device may be a base station or a control access point. Of course, in practical applications, the network device or the terminal may have other forms of expression. This is only for illustrative purposes. The method is as follows Figure 2 As shown, the following steps are included:

[0057] Step S200: The base station sends configuration information to the UE, where the configuration information includes: configuration information of multiple carriers configured for the UE, where at least one carrier among the multiple carriers is configured with a physical layer identifier.

[0058] At least one of the above-mentioned multiple carriers is configured with a physical layer identifier, which may specifically include: one carrier among the multiple carriers is configured with a corresponding physical layer identifier (PhysID), and of course, each carrier in some of the multiple carriers may also be configured with a corresponding PhysID.

[0059] The above configuration information may specifically be: system broadcast message or RRC dedicated signaling. This signaling is used because the space occupied by carrier configuration is relatively large. If DCI is used to send it, more network resources will be wasted because the number of DCI bits is relatively precious and a carrier configuration with a large space cannot be sent through DCI.

[0060] Step S201: UE receives configuration information of a base station;

[0061] Step S202: The base station sends a DCI to the UE, where the DCI includes: a carrier switching indication;

[0062] Step S203: The UE receives the DCI, determines a target carrier from the multiple carriers according to the carrier switching indication of the DCI, and determines a random access mode of the UE on the target carrier according to whether the target carrier is configured with a physical layer identifier.

[0063] like Figure 2The method shown is a joint solution of the base station and the UE. In actual applications, the UE and the base station may also form corresponding solutions separately. For example, the above steps S200 and S202 are combined to form a technical solution of the method for carrier switching indication on the base station side, and the above steps S201 and S203 are combined to form a technical solution of the method for carrier switching indication on the terminal side.

[0064] In an optional solution, the above-mentioned DCI is a data scheduling DCI.

[0065] In an optional solution, the carrier switching indication is a bit field used to indicate a carrier index in the DCI for data scheduling.

[0066] In an optional solution, the data scheduling DCI also includes: a physical layer identification activation indication.

[0067] In another optional solution, the DCI is a common DCI.

[0068] In another optional solution, the configuration information further includes: a bit block indicating the UE corresponding to the Common DCI, and the bit block includes: a carrier switching index indication.

[0069] In another optional solution, the bit block also includes: a physical layer identification activation indication.

[0070] If the DCI does not carry a physical layer identifier activation indication, the UE determines the random access mode of the target carrier according to whether the target carrier is configured with a physical layer identifier, which may specifically include:

[0071] If the target carrier is configured with a physical layer identifier, the UE performs non-contention random access using the physical layer identifier on the target carrier; otherwise, the UE performs contention random access on the target carrier.

[0072] If the DCI carries a physical layer identifier activation indication, the UE determines the random access mode of the target carrier according to whether the target carrier is configured with a physical layer identifier, which may specifically include:

[0073] If the target carrier is configured with a physical layer identifier and the physical layer identifier activation indication is activated, the UE performs non-contention random access using the physical layer identifier on the target carrier;

[0074] If the target carrier is configured with a physical layer identifier but the physical layer identifier activation indication is inactive, the UE performs contention random access on the target carrier.

[0075] Embodiment 1

[0076] Embodiment 1 of the present application provides a method for indicating carrier switching. Figure 1 The communication system shown is executed as Figure 1 The terminal shown may be a UE, and the network device may be a base station or a control access point. Of course, in practical applications, the network device or the terminal may have other forms of expression. This is only for illustrative purposes. The method is as follows Figure 3 As shown, the following steps are included:

[0077] Step S300: The base station sends configuration information to the UE through a system broadcast message (System Information Block, SIB) or RRC dedicated signaling, wherein the configuration information includes: configuration information of multiple carriers configured for the UE, at least one of the multiple carriers is configured with a physical layer identifier

[0078] Step S301: UE receives configuration information of a base station;

[0079] Step S302: The base station sends a data scheduling DCI to the UE, where the DCI includes: a carrier switching indication carried in a specific bit field;

[0080] Step S303: The UE receives the DCI, determines a target carrier from the multiple carriers according to the carrier switching indication carried by the DCI, and adopts non-contention random access if the target carrier is configured with a physical layer identifier; if the target carrier is not configured with a physical layer identifier, adopts contention random access.

[0081] According to the technical solution of the embodiment of the present application, the UE can confirm on which carriers the network has configured the physical layer identifier and the specific value of the physical layer identifier by receiving RRC dedicated signaling. For subsequent carrier switching, the UE can determine which carrier to switch to through the bit field used to indicate the carrier index in the carrier switching indication, i.e., the data scheduling DCI. When the UE switches to the target carrier according to the carrier switching indication (data scheduling DCI), if the target carrier is configured with a physical layer identifier, the UE can use the physical layer identifier for non-competitive random access on the target carrier, otherwise, the UE can only perform competitive random access on the target carrier. In this way, the indication of carrier switching can be implemented through the data scheduling DCI, thereby improving the flexibility of the network and improving network performance.

[0082] Embodiment 2

[0083] Embodiment 2 of the present application provides a method for indicating carrier switching. Figure 1 The communication system shown is executed as Figure 1The terminal shown may be a UE, and the network device may be a base station or a control access point. Of course, in practical applications, the network device or the terminal may have other forms of expression. This is only for illustrative purposes. The method is as follows Figure 4 As shown, the following steps are included:

[0084] Step S400: The base station sends configuration information to the UE through SIB or RRC dedicated signaling, wherein the configuration information includes: configuration information of multiple carriers configured for the UE, at least one of the multiple carriers is configured with a physical layer identifier.

[0085] Step S401: UE receives configuration information of a base station;

[0086] Step S402: The base station sends a data scheduling DCI to the UE, where the DCI includes: a carrier switching indication carried in a specific bit field and a physical layer identifier activation indication (which may be 1 bit, for example, 1 indicates activation and 0 indicates inactivation);

[0087] Step S403, the UE receives the DCI, determines the target carrier from the multiple carriers according to the carrier switching indication of the DCI, if the target carrier is configured with a physical layer identifier and the physical layer identifier activation indication is 1, uses the physical layer identifier for non-competitive random access; if the target carrier is not configured with a physical layer identifier or the physical layer identifier activation indication is 0, uses competitive random access.

[0088] According to the technical solution of the embodiment of the present application, the UE can confirm which carriers the network has configured the physical layer identifier on and the specific value of the physical layer identifier by receiving RRC dedicated signaling. For subsequent carrier switching, the UE can determine which carrier to switch to through the bit field used to indicate the carrier index in the carrier switching indication, that is, the data scheduling DCI. In addition, the UE will also determine whether the physical layer identifier is effective based on the bit in the carrier switching indication used to indicate whether the physical layer identifier configured for the target switching carrier is effective (referred to as: physical ID effective indication). When the UE switches to the target carrier according to the carrier switching indication (data scheduling DCI), if the target carrier is configured with a physical layer identifier and the physical ID activation indication in the data scheduling DCI is effective (for example, 1), the UE can use the physical layer identifier for non-competitive random access on the target carrier, otherwise, the UE can only perform competitive random access on the target carrier. In this way, the carrier switching indication can be implemented through the data scheduling DCI, and the random access method can be determined through the physical layer identifier activation indication, thereby improving the flexibility of the network and improving network performance.

[0089] Embodiment 3

[0090] Embodiment 3 of the present application provides a method for indicating carrier switching. Figure 1The communication system shown is executed as Figure 1 The terminal shown may be a UE, and the network device may be a base station or a control access point. Of course, in practical applications, the network device or the terminal may have other forms of expression. This is only for illustrative purposes. The method is as follows Figure 5 As shown, the following steps are included:

[0091] Step S500: The base station sends configuration information to the UE through SIB or RRC dedicated signaling, wherein the configuration information includes: configuration information of multiple carriers configured for the UE, at least one of the multiple carriers being configured with a physical layer identifier; the configuration information also includes: specifying the bit block corresponding to the public downlink control information of the UE

[0092] Step S501: UE receives configuration information of a base station;

[0093] Step S502: The base station sends Common DCI to the UE, where the Common DCI includes: a bit block corresponding to the UE, where the bit block includes: a carrier switching index indication;

[0094] Step S503, the UE receives Common DCI, determines the bit block corresponding to the UE according to the configuration information, obtains the carrier switching index indication, determines the target carrier from the multiple carriers according to the carrier switching index indication, and if the target carrier is configured with a physical layer identifier, adopts non-contention random access; if the target carrier is not configured with a physical layer identifier, adopts contention random access.

[0095] According to the technical solution of the embodiment of the present application, the UE can confirm which carriers the network has configured the physical layer identifier on and the specific value of the physical layer identifier by receiving RRC dedicated signaling. For subsequent carrier switching, the UE can determine which carrier to switch to by receiving Common DCI and according to the corresponding bit block of the UE in Common DCI. When the UE switches to the target carrier according to the carrier switching indication (data scheduling DCI), if the target carrier is configured with a physical layer identifier, the UE can use the physical layer identifier for non-competitive random access on the target carrier, otherwise, the UE can only perform competitive random access on the target carrier. In this way, the indication of carrier switching can be implemented through Common DCI, which improves the flexibility of the network and improves network performance.

[0096] Embodiment 4

[0097] Embodiment 4 of the present application provides a method for indicating carrier switching. Figure 1 The communication system shown is executed as Figure 1The terminal shown may be a UE, and the network device may be a base station or a control access point. Of course, in practical applications, the network device or the terminal may have other forms of expression. This is only for illustrative purposes. The method is as follows Figure 6 As shown, the following steps are included:

[0098] Step S600: The base station sends configuration information to the UE through SIB or RRC dedicated signaling, wherein the configuration information includes: configuration information of multiple carriers configured for the UE, at least one of the multiple carriers being configured with a physical layer identifier; the configuration information also includes: specifying the bit block corresponding to the public downlink control information of the UE

[0099] Step S601: UE receives configuration information of a base station;

[0100] Step S602: The base station sends Common DCI to the UE, where the Common DCI includes: a bit block corresponding to the UE, where the bit block includes: a carrier switching index indication and a physical layer identifier activation indication;

[0101] Step S603, the UE receives Common DCI, determines the bit block corresponding to the UE according to the configuration information, obtains the carrier switching index indication, determines the target carrier from the multiple carriers according to the carrier switching index indication, and if the target carrier is configured with a physical layer identifier and the physical layer identifier activation indication is 1, non-competitive random access is adopted; if the target carrier is not configured with a physical layer identifier or the physical layer identifier activation indication is 0, competitive random access is adopted.

[0102] According to the technical solution of the embodiment of the present application, the UE can confirm which carriers the network has configured the physical layer identifier on and the specific value of the physical layer identifier by receiving RRC dedicated signaling. For subsequent carrier switching, the UE can determine which carrier to switch to by receiving Common DCI and according to the bit field used to indicate the carrier index in the bit block corresponding to the UE in Common DCI. When the UE switches to the target carrier according to the carrier switching indication (data scheduling DCI), if the target carrier is configured with a physical layer identifier and the bit field indicating the carrier activation in the bit block indicates that the physical layer identifier is valid (activated), the UE can use the physical layer identifier for non-competitive random access on the target carrier. In this way, the indication of carrier switching can be implemented through Common DCI, and the method of using random access can be determined through the physical layer identifier activation indication, thereby improving the flexibility of the network and improving network performance.

[0103] It is understandable that in order to implement the above functions, the user equipment includes hardware and / or software modules corresponding to the execution of each function. In combination with the algorithm steps of each example described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application in combination with the embodiments, but such implementation should not be considered to be beyond the scope of this application.

[0104] In this embodiment, the electronic device can be divided into functional modules according to the above method example. For example, each functional module can be divided according to each function, or two or more functions can be integrated into one processing module. The above integrated module can be implemented in the form of hardware. It should be noted that the division of modules in this embodiment is schematic and is only a logical function division. There may be other division methods in actual implementation.

[0105] In the case of dividing each functional module into corresponding functional modules, Figure 7 A schematic diagram of a user equipment is shown, such as Figure 7 As shown, the UE 700 may include: a communication unit 701 and a processing unit 702 .

[0106] The processing unit 702 may be used to support the user equipment to execute the above step S201, etc., and / or other processes of the technology described herein.

[0107] The communication unit 701 may be used to support the user equipment to execute the above-mentioned step S201, step S203, etc., and / or other processes for the technology described herein.

[0108] It should be noted that all relevant contents of each step involved in the above method embodiment can be referred to the functional description of the corresponding functional module and will not be repeated here.

[0109] The network device provided in this embodiment is used to perform the above Figure 2 The method shown can therefore achieve the same effect as the above-mentioned implementation method.

[0110] Specifically, the network device may include: a communication unit, which may be used to perform the following steps: Figure 2 Steps S200 and S202, etc. of the method shown, and / or other processes used for the technology described herein.

[0111] In the case of using integrated units, the user equipment may include a processing module, a storage module and a communication module. Among them, the processing module can be used to control and manage the actions of the user equipment, for example, it can be used to support the electronic device to execute the steps performed by the above-mentioned communication unit 701 and the processing unit 702. The storage module can be used to support the electronic device to execute and store program codes and data. The communication module can be used to support the communication between the electronic device and other devices.

[0112] Among them, the processing module can be a processor or a controller. It can implement or execute various exemplary logic boxes, modules and circuits described in conjunction with the disclosure of this application. The processor can also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of digital signal processing (DSP) and a microprocessor, etc. The storage module can be a memory. The communication module can specifically be a device that interacts with other electronic devices, such as a radio frequency circuit, a Bluetooth chip, a Wi-Fi chip, etc.

[0113] It is understandable that the interface connection relationship between the modules illustrated in the embodiment of the present application is only a schematic illustration and does not constitute a structural limitation on the user equipment. In other embodiments of the present application, the user equipment may also adopt different interface connection methods in the above embodiments, or a combination of multiple interface connection methods.

[0114] See also Figure 8 , Figure 8 An electronic device 80 provided in an embodiment of the present application includes a processor 801, a memory 802 and a communication interface 803, wherein the processor 801, the memory 802 and the communication interface 803 are interconnected via a bus.

[0115] The memory 802 includes, but is not limited to, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), or a portable read-only memory (CD-ROM), and the memory 802 is used for related computer programs and data. The communication interface 803 is used to receive and send data.

[0116] The processor 801 may be one or more central processing units (CPUs). When the processor 801 is a CPU, the CPU may be a single-core CPU or a multi-core CPU.

[0117] The processor 801 may include one or more processing units, for example, the processing unit may include an application processor (AP), a modem processor, a graphics processor (GPU), an image signal processor (ISP), a controller, a video codec, a digital signal processor (DSP), a baseband processor, and / or a neural-network processing unit (NPU), etc. Among them, different processing units may be independent components or integrated into one or more processors. In some embodiments, the user equipment may also include one or more processing units. Among them, the controller may generate an operation control signal according to the instruction opcode and the timing signal to complete the control of fetching and executing instructions. In some other embodiments, a memory may also be set in the processing unit for storing instructions and data. Exemplarily, the memory in the processing unit may be a cache memory. The memory may store instructions or data that have just been used or circulated by the processing unit. If the processing unit needs to use the instruction or data again, it can be directly called from the memory. In this way, repeated access is avoided, the waiting time of the processing unit is reduced, and the efficiency of the user equipment in processing data or executing instructions is improved.

[0118] In some embodiments, the processor 801 may include one or more interfaces. The interface may include an inter-integrated circuit (I2C) interface, an inter-integrated circuit sound (I2S) interface, a pulse code modulation (PCM) interface, a universal asynchronous receiver / transmitter (UART) interface, a mobile industry processor interface (MIPI), a general-purpose input / output (GPIO) interface, a SIM card interface and / or a USB interface, etc. Among them, the USB interface is an interface that complies with the USB standard specification, and specifically can be a Mini USB interface, a Micro USB interface, a USB Type C interface, etc. The USB interface can be used to connect a charger to charge a user device, and can also be used to transmit data between a user device and a peripheral device. The USB interface can also be used to connect headphones to play audio through the headphones.

[0119] If the electronic device 80 is a terminal side device, such as a user device, the processor 801 in the electronic device 80 is used to read the computer program code stored in the memory 802 and perform the following operations:

[0120] receiving configuration information of a base station, the configuration information comprising: configuration information of multiple carriers configured for the UE, at least one carrier among the multiple carriers being configured with a physical layer identifier;

[0121] receiving downlink control information DCI from a base station, the DCI including: a carrier switching indication, and the UE determining a target carrier from the multiple carriers according to the carrier switching indication of the DCI;

[0122] The random access mode of the UE on the target carrier is determined according to whether the target carrier is configured with a physical layer identifier.

[0123] Among them, all relevant contents of each scenario involved in the above method embodiment can be referred to the functional description of the corresponding functional module, which will not be repeated here.

[0124] If the electronic device 80 is a network side device, such as a base station, the processor 801 in the electronic device 80 is used to read the computer program code stored in the memory 802 and perform the following operations:

[0125] Sending configuration information to the UE, the configuration information comprising: configuration information of multiple carriers configured for the UE, at least one carrier among the multiple carriers being configured with a physical layer identifier;

[0126] Downlink control information DCI is sent to the UE, where the DCI includes: a carrier switching indication, and the carrier switching indication of the DCI is used to instruct the UE to determine a target carrier from the multiple carriers.

[0127] The embodiment of the present application further provides a chip system, the chip system comprising at least one processor, a memory and an interface circuit, the memory, the transceiver and the at least one processor are interconnected through a line, the at least one memory stores a computer program; when the computer program is executed by the processor, Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 The method flow shown is realized.

[0128] The embodiment of the present application further provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, which, when executed on a network device, Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 The method flow shown is realized.

[0129] The present application also provides a computer program product. When the computer program product is run on a terminal, Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 The method flow shown is realized.

[0130] The embodiment of the present application also provides a terminal, including a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor, and the program includes a program for executing Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 Instructions for steps in the method of the illustrated embodiment.

[0131] The above mainly introduces the scheme of the embodiment of the present application from the perspective of the execution process on the method side. It is understandable that, in order to realize the above functions, the electronic device includes a hardware structure and / or software template corresponding to the execution of each function. Those skilled in the art should easily realize that, in combination with the units and algorithm steps of each example described in the embodiment provided herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present application.

[0132] The embodiment of the present application can divide the electronic device into functional units according to the above method example. For example, each functional unit can be divided according to each function, or two or more functions can be integrated into one processing unit. The above integrated unit can be implemented in the form of hardware or in the form of software functional units. It should be noted that the division of units in the embodiment of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation.

[0133] It should be noted that, for the above-mentioned method embodiments, for the sake of simplicity, they are all expressed as a series of action combinations, but those skilled in the art should be aware that this application is not limited by the order of the actions described, because according to this application, some steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and templates involved are not necessarily required by this application.

[0134] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0135] In the several embodiments provided in the present application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are only schematic, such as the division of the above-mentioned units, which is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection of devices or units can be electrical or other forms.

[0136] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0137] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0138] If the above-mentioned integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable memory. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a memory, including a number of instructions to enable a computer device (which can be a personal computer, server or network device, etc.) to perform all or part of the steps of the above-mentioned methods of each embodiment of the present application. The aforementioned memory includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, disk or CD-ROM and other media that can store program codes.

[0139] A person skilled in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable memory, and the memory can include: a flash drive, a read-only memory (English: Read-Only Memory, abbreviated as: ROM), a random access memory (English: Random Access Memory, abbreviated as: RAM), a magnetic disk or an optical disk, etc.

Claims

1. A carrier switching indication method, characterized in that: The method is applied to a user equipment UE, and the method comprises the following steps: The UE receives configuration information from a base station, where the configuration information includes: configuration information of multiple carriers configured for the UE, where at least one of the multiple carriers is configured with a physical layer identifier, and the at least one of the multiple carriers is configured with a physical layer identifier including: one of the multiple carriers is configured with a corresponding physical layer identifier, or each of some of the multiple carriers is configured with a corresponding physical layer identifier; The UE receives downlink control information DCI from a base station, where the DCI includes: a carrier switching indication, and the UE determines a target carrier from the multiple carriers according to the carrier switching indication of the DCI; The UE determines the random access mode of the target carrier according to whether the target carrier is configured with a physical layer identifier, specifically including: If the target carrier is configured with a physical layer identifier, the UE performs non-contention random access using the physical layer identifier on the target carrier; otherwise, the UE performs contention random access on the target carrier.

2. The method according to claim 1, characterized in that The UE receiving the configuration information of the base station specifically includes: The UE receives the configuration information sent by the base station through a system broadcast message or RRC dedicated signaling.

3. The method according to claim 1 or 2, characterized in that: The DCI is a data scheduling DCI.

4. The method according to claim 3, characterized in that The carrier switching indication is a bit field in the DCI for indicating a carrier index in the data scheduling DCI.

5. The method according to claim 4, characterized in that The data scheduling DCI also includes: a physical layer identification activation indication.

6. The method according to claim 1 or 2, characterized in that: The DCI is a common DCI.

7. The method according to claim 6, characterized in that The configuration information also includes: a bit block indicating the UE corresponding to the Common DCI, and the bit block includes: a carrier switching index indication.

8. The method according to claim 7, characterized in that The bit block also includes: a physical layer identification activation indication.

9. The method according to claim 5 or 8, characterized in that: The UE determines, according to whether the target carrier is configured with a physical layer identifier, a random access mode of the UE on the target carrier, specifically including: If the target carrier is configured with a physical layer identifier and the physical layer identifier activation indication is activated, the UE performs non-contention random access using the physical layer identifier on the target carrier; If the target carrier is configured with a physical layer identifier but the physical layer identifier activation indication is inactive, the UE performs contention random access on the target carrier.

10. A carrier switching indication method, characterized in that: The method is applied to a base station, and the method comprises the following steps: The base station sends configuration information to the UE, where the configuration information includes: configuration information of multiple carriers configured for the UE, where at least one of the multiple carriers is configured with a physical layer identifier, and where at least one of the multiple carriers is configured with a physical layer identifier includes: one of the multiple carriers is configured with a corresponding physical layer identifier, or each of some of the multiple carriers is configured with a corresponding physical layer identifier; The base station sends downlink control information DCI to the UE, where the DCI includes: a carrier switching indication, and the carrier switching indication of the DCI is used to instruct the UE to determine a target carrier from the multiple carriers.

11. The method according to claim 10, characterized in that The carrier switching indication is a bit field used to indicate a carrier index in the DCI for data scheduling.

12. The method according to claim 10, characterized in that If the DCI is a Common DCI, the configuration information further includes: a bit block indicating that the UE corresponds to the Common DCI, and the bit block includes: a carrier switching index indication.

13. A user equipment UE, characterized in that: The user equipment comprises: a communication unit, configured to receive configuration information of a base station, the configuration information comprising: configuration information of multiple carriers configured for a UE, at least one of the multiple carriers being configured with a physical layer identifier, and the at least one of the multiple carriers being configured with a physical layer identifier comprising: one of the multiple carriers being configured with a corresponding physical layer identifier, or each of some of the multiple carriers being configured with a corresponding physical layer identifier; The communication unit is further configured to receive downlink control information DCI from a base station, wherein the DCI includes: a carrier switching indication; A processing unit is used to determine a target carrier from the multiple carriers according to the carrier switching indication of the DCI; determine the random access method of the UE at the target carrier according to whether the target carrier is configured with a physical layer identifier, specifically including: if the target carrier is configured with a physical layer identifier, the UE performs non-competitive random access based on the use of the physical layer identifier at the target carrier, otherwise the UE performs competitive random access at the target carrier.

14. A base station, characterized in that: The base station comprises: a communication unit, configured to send configuration information to a UE, the configuration information comprising: configuration information of multiple carriers configured for the UE, at least one carrier among the multiple carriers being configured with a physical layer identifier, and the at least one carrier among the multiple carriers being configured with a physical layer identifier comprising: one carrier among the multiple carriers being configured with a corresponding physical layer identifier, or each carrier in some of the multiple carriers being configured with a corresponding physical layer identifier; The communication unit is further used to send downlink control information DCI to the UE, where the DCI includes: a carrier switching indication, and the carrier switching indication of the DCI is used to instruct the UE to determine a target carrier from the multiple carriers.

15. An electronic device comprising a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor, and the programs include instructions for executing the method as described in any one of claims 1-9 or the steps in the method as described in any one of claims 10-12.

16. A chip system, comprising at least one processor, a memory and a transceiver, wherein the memory, the transceiver and the at least one processor are interconnected via lines, and a computer program is stored in the memory; when the computer program is executed by the processor, the method described in any one of claims 1 to 9 or the method described in any one of claims 10 to 12 is implemented.

17. A computer-readable storage medium, wherein a computer program is stored in the computer-readable storage medium, and when the computer-readable storage medium is run on a user device, the computer-readable storage medium executes the method according to any one of claims 1 to 9 or the method according to any one of claims 10 to 12.

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