Wireless communication method, network device and terminal device

Abstract

The embodiment of the present application provides a wireless communication method, a network device, and a terminal device, which can improve communication performance in terms of frequency band deployment and configuration. The method includes: the network device determines a first uplink carrier, the first uplink carrier is an uplink carrier among multiple uplink carriers available for the terminal device; the network device sends configuration information to the terminal device, the configuration information includes configuration information associated with the first uplink carrier.

Description

Technical Field

[0001] The present application relates to the field of communications, and more specifically, to a wireless communication method, a network device, and a terminal device. Background Art

[0002] In the Long Term Evolution (LTE) system, there is a fixed uplink carrier and a fixed downlink carrier (the uplink carrier and the downlink carrier may at least partially overlap in the frequency domain), and the terminal device and the network may use the fixed uplink carrier and downlink carrier for uplink and downlink communications respectively.

[0003] In future communication systems, higher requirements will be placed on communication performance.

[0004] Therefore, how to improve communication performance in terms of carrier deployment and configuration is an urgent problem to be solved. Summary of the invention

[0005] The embodiments of the present application provide a wireless communication method and device, which can improve communication performance in terms of carrier deployment and configuration.

[0006] In a first aspect, a wireless communication method is provided, comprising:

[0007] The network device determines a first uplink carrier, where the first uplink carrier is an uplink carrier among a plurality of uplink carriers available for the terminal device;

[0008] The network device sends configuration information to the terminal device, where the configuration information includes configuration information associated with the first uplink carrier.

[0009] In combination with the first aspect, in a possible implementation manner of the first aspect, the network device sending configuration information to the terminal device includes:

[0010] The network device sends the configuration information to the plurality of terminal devices via broadcast signaling, or remaining minimum system information RMSI, or system information.

[0011] In combination with the first aspect or any of the foregoing possible implementations, in another possible implementation of the first aspect, the network device sending configuration information to the terminal device includes:

[0012] The network device sends the configuration information to the single terminal device through high-layer signaling.

[0013] In combination with the first aspect or any one of the foregoing possible implementations, in another possible implementation of the first aspect, the configuration information includes resource information of the first uplink carrier.

[0014] In combination with the first aspect or any one of the foregoing possible implementations, in another possible implementation of the first aspect, the resource information includes carrier position information of the first uplink carrier.

[0015] In combination with the first aspect or any one of the foregoing possible implementations, in another possible implementation of the first aspect, the resource information includes bandwidth information of the first uplink carrier.

[0016] In combination with the first aspect or any one of the above possible implementations, in another possible implementation of the first aspect, the bandwidth information includes a bandwidth actually used by the first uplink carrier, an initial access bandwidth of the first uplink carrier, or a reference bandwidth of the first uplink carrier relative to a reference object.

[0017] In combination with the first aspect or any one of the foregoing possible implementations, in another possible implementation of the first aspect, the configuration information includes configuration information for transmitting a sounding reference signal SRS on the first uplink carrier.

[0018] In combination with the first aspect or any one of the above possible implementations, in another possible implementation of the first aspect, the configuration information includes configuration information for transmitting a physical uplink shared channel PUSCH or a physical uplink control channel PUCCH on the first uplink carrier.

[0019] In combination with the first aspect or any one of the foregoing possible implementations, in another possible implementation of the first aspect, the configuration information is used to indicate a random access resource and / or a random access code for a random access process for the first uplink carrier.

[0020] In combination with the first aspect or any one of the foregoing possible implementations, in another possible implementation of the first aspect, the configuration information indicates a frequency domain position of the random access resource relative to a reference carrier position.

[0021] In combination with the first aspect or any one of the foregoing possible implementations, in another possible implementation of the first aspect, the reference carrier position is a carrier position of the first uplink carrier; or,

[0022] The reference carrier position is a carrier position of another uplink carrier among the plurality of uplink carriers other than the first uplink carrier; or

[0023] The reference carrier position is the carrier position of the downlink carrier of the terminal device.

[0024] In combination with the first aspect or any one of the above possible implementations, in another possible implementation of the first aspect, the configuration signaling to which the configuration information belongs is also used to indicate: random access resources and / or random access codes for a random access process for at least one second uplink carrier.

[0025] In combination with the first aspect or any of the foregoing possible implementations, in another possible implementation of the first aspect, the method further includes:

[0026] The network device sends indication information to the terminal device, where the indication information indicates parameters used to select an uplink carrier during random access.

[0027] In combination with the first aspect or any one of the above possible implementations, in another possible implementation of the first aspect, the parameter is used by the terminal device to obtain the DL signal threshold corresponding to the uplink carrier, and is used by the terminal device to select the corresponding uplink carrier for the random access process based on the relationship between the DL signal measurement result and the DL signal threshold.

[0028] In combination with the first aspect or any of the foregoing possible implementations, in another possible implementation of the first aspect, the indication information is carried in configuration signaling to which the configuration information belongs; or,

[0029] The indication information is sent via broadcast signaling, or RMSI, or system information.

[0030] In combination with the first aspect or any one of the foregoing possible implementations, in another possible implementation of the first aspect, the random access process is a contention-free random access process.

[0031] In combination with the first aspect or any one of the foregoing possible implementations, in another possible implementation of the first aspect, the multiple uplink carriers available for the terminal device are respectively in multiple different frequency bands.

[0032] In combination with the first aspect or any one of the foregoing possible implementations, in another possible implementation of the first aspect, a frequency band in which the first uplink carrier is located is lower than a frequency band of other uplink carriers.

[0033] In a second aspect, a wireless communication method is provided, including:

[0034] The terminal device receives configuration information sent by the network device, where the configuration information includes configuration information associated with a first uplink carrier, where the first uplink carrier is an uplink carrier among multiple uplink carriers available for the terminal device;

[0035] According to the configuration information, the terminal device performs uplink transmission on the first uplink carrier.

[0036] In conjunction with the second aspect, in a possible implementation manner of the second aspect, the terminal device receives configuration information sent by the network device, including:

[0037] The terminal device receives the configuration information sent by the network device through broadcast signaling, or remaining minimum system information RMSI, or system information.

[0038] In combination with the second aspect or any of the foregoing possible implementations, in another possible implementation of the second aspect, the terminal device receives configuration information sent by the network device, including:

[0039] The terminal device receives the configuration information sent by the network device through high-level signaling.

[0040] In combination with the second aspect or any one of the foregoing possible implementations, in another possible implementation of the second aspect, the configuration information includes resource information of the first uplink carrier.

[0041] In combination with the second aspect or any one of the foregoing possible implementations, in another possible implementation of the second aspect, the resource information includes carrier position information of the first uplink carrier.

[0042] In combination with the second aspect or any one of the foregoing possible implementations, in another possible implementation of the second aspect, the resource information includes bandwidth information of the first uplink carrier.

[0043] In combination with the second aspect or any one of the above possible implementations, in another possible implementation of the second aspect, the bandwidth information includes the bandwidth actually used by the first uplink carrier, the initial access bandwidth of the first uplink carrier, or the reference bandwidth of the first uplink carrier relative to a reference object.

[0044] In combination with the second aspect or any one of the foregoing possible implementations, in another possible implementation of the second aspect, the configuration information includes configuration information for transmitting a sounding reference signal SRS on the first uplink carrier.

[0045] In combination with the second aspect or any one of the above possible implementations, in another possible implementation of the second aspect, the configuration information includes configuration information for transmitting a physical uplink shared channel PUSCH or a physical uplink control channel PUCCH on the first uplink carrier.

[0046] In combination with the second aspect or any one of the foregoing possible implementations, in another possible implementation of the second aspect, the configuration information is used to indicate a random access resource and / or a random access code for a random access process for the first uplink carrier.

[0047] In combination with the second aspect or any one of the foregoing possible implementations, in another possible implementation of the second aspect, the configuration information indicates a frequency domain position of the random access resource relative to a reference carrier position.

[0048] In combination with the second aspect or any one of the foregoing possible implementations, in another possible implementation of the second aspect, the reference carrier position is a carrier position of the first uplink carrier; or,

[0049] The reference carrier position is a carrier position of another uplink carrier among the plurality of uplink carriers other than the first uplink carrier; or

[0050] The reference carrier position is the carrier position of the downlink carrier of the terminal device.

[0051] In combination with the second aspect or any one of the above possible implementations, in another possible implementation of the second aspect, the configuration signaling to which the configuration information belongs is also used to indicate: random access resources and / or random access codes for a random access process for at least one second uplink carrier.

[0052] In combination with the second aspect or any of the foregoing possible implementations, in another possible implementation of the second aspect, the method further includes:

[0053] The terminal device receives indication information sent by the network device, where the indication information indicates a parameter for selecting an uplink carrier during random access;

[0054] Before the terminal device performs uplink transmission on the first uplink carrier according to the configuration information, the method further includes:

[0055] Based on the parameters, the terminal device determines to perform uplink transmission on the first uplink carrier.

[0056] In combination with the second aspect or any one of the foregoing possible implementations, in another possible implementation of the second aspect, the parameter is used by the terminal device to obtain a DL signal threshold corresponding to an uplink carrier; and the terminal device determines, according to the parameter, to perform uplink transmission on the first uplink carrier, including:

[0057] The terminal device determines to perform uplink transmission on the first uplink carrier based on the relationship between the DL signal measurement result and the DL signal threshold.

[0058] In combination with the second aspect or any of the foregoing possible implementations, in another possible implementation of the second aspect, the indication information is carried in configuration signaling to which the configuration information belongs; or,

[0059] The indication information is sent via broadcast signaling, or RMSI, or system information.

[0060] In combination with the second aspect or any one of the foregoing possible implementations, in another possible implementation of the second aspect, the random access process is a contention-free random access process.

[0061] In combination with the second aspect or any one of the foregoing possible implementations, in another possible implementation of the second aspect, the multiple uplink carriers available for the terminal device are respectively in multiple different frequency bands.

[0062] In combination with the second aspect or any one of the foregoing possible implementations, in another possible implementation of the second aspect, a frequency band in which the first uplink carrier is located is lower than a frequency band of other uplink carriers.

[0063] In a third aspect, a network device is provided, which is used to execute the method in the first aspect or any possible implementation of the first aspect. Specifically, the network device includes a functional module for executing the method in the first aspect or any possible implementation of the first aspect.

[0064] In a fourth aspect, a terminal device is provided, which is used to execute the method in the second aspect or any possible implementation of the second aspect. Specifically, the terminal device includes a functional module for executing the method in the second aspect or any possible implementation of the second aspect.

[0065] In a fifth aspect, a network device is provided, comprising a processor, a memory, and a transceiver. The processor, the memory, and the transceiver communicate with each other through an internal connection path to transmit control and / or data signals, so that the network device executes the method in the first aspect or any possible implementation of the first aspect.

[0066] In a sixth aspect, a terminal device is provided, comprising a processor, a memory, and a transceiver. The processor, the memory, and the transceiver communicate with each other through an internal connection path to transmit control and / or data signals, so that the network device executes the method in the second aspect or any possible implementation of the second aspect.

[0067] In a ninth aspect, a computer-readable medium is provided for storing a computer program, wherein the computer program includes instructions for executing any one of the above methods or any possible implementations.

[0068] In a tenth aspect, a computer program product comprising instructions is provided, which, when executed on a computer, enables the computer to execute any one of the above methods or any possible implementation methods.

[0069] Therefore, in an embodiment of the present application, there are multiple uplink carriers that can be used for uplink transmission of the terminal device, and the uplink carriers among the multiple uplink carriers can be configured, thereby increasing the flexibility of the uplink transmission of the terminal device and improving communication performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0070] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0071] Figure 1 is a schematic diagram of a wireless communication system according to an embodiment of the present application.

[0072] Figure 2 It is a schematic diagram of link carrier resource division according to an embodiment of the present application.

[0073] Figure 3 It is a schematic diagram of link carrier resource division according to an embodiment of the present application.

[0074] Figure 4 It is a schematic diagram of link carrier resource division according to an embodiment of the present application.

[0075] Figure 5 It is a schematic diagram of link carrier resource division according to an embodiment of the present application.

[0076] Figure 6 It is a schematic flowchart of a wireless communication method according to an embodiment of the present application.

[0077] Figure 7 It is a schematic block diagram of a network device according to an embodiment of the present application.

[0078] Figure 8 It is a schematic block diagram of a terminal device according to an embodiment of the present application.

[0079] Fig. 9is a schematic block diagram of a system chip according to an embodiment of the present application.

[0080] Fig.10 It is a schematic block diagram of a communication device according to an embodiment of the present application. DETAILED DESCRIPTION

[0081] The following will describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0082] The technical solutions of the embodiments of the present application can be applied to various communication systems, for example: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD) system, Universal Mobile Telecommunication System (UMTS) system, Worldwide Interoperability for Microwave Access (WiMAX) system or future 5G system (also referred to as New Radio (NR) system).

[0083] It should be understood that the terms "system" and "network" are often used interchangeably in this article. The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that three relationships can exist. 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 generally indicates that the associated objects before and after are in an "or" relationship.

[0084] Figure 1A wireless communication system 100 to which an embodiment of the present application is applied is shown.

[0085] It should be understood that Figure 1 One network device and two terminal devices are shown exemplarily. Optionally, the wireless communication system 100 may include multiple network devices and each network device may include another number of terminal devices within its coverage area, which is not limited in the embodiments of the present application.

[0086] Optionally, the wireless communication system 100 may also include other network entities such as a network controller and a mobility management entity, which is not limited in the embodiments of the present application.

[0087] like Figure 1 As shown, the wireless communication system 100 may include a network device 110. The network device 100 may be a device that communicates with a terminal device. The network device 100 may provide communication coverage for a specific geographical area, and may communicate with a terminal device (e.g., UE) located in the coverage area. Optionally, the network device 100 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, or a base station (NodeB, NB) in a WCDMA system, or an evolved base station (Evolutional Node B, eNB or eNodeB) in an LTE system, or a wireless controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or the network device may be a relay station, an access point, a vehicle-mounted device, a wearable device, a network-side device in a future 5G network, or a network device in a future evolved public land mobile network (Public Land Mobile Network, PLMN), etc.

[0088] The wireless communication system 100 also includes at least one terminal device 120 located within the coverage of the network device 110. The terminal device 120 may be mobile or fixed. Optionally, the terminal device 120 may refer to an access terminal, a user equipment (UE), a user unit, a user station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent or a user device. The access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G network, or a terminal device in a future evolved PLMN, etc.

[0089] Optionally, terminal devices 120 may perform device-to-device (D2D) communication with each other.

[0090] Optionally, the 5G system or network may also be referred to as a New Radio (NR) system or network.

[0091] High-frequency bands are important alternative bands for deploying 5G (NR) networks. Due to the high frequency band, the coverage is limited (compared with low-frequency LTE). For downlink (DL), due to the large base station transmission power and large-scale multiple input multiple output (MIMO) (hybrid beamforming), DL coverage is improved. Due to the limited UE transmission power, UL coverage will become a bottleneck.

[0092] Therefore, an uplink (UL) carrier can be deployed at a low frequency for NR transmission. This UL carrier can be called a supplementary uplink (SUL) carrier. In this way, NR has at least two UL carriers, one is a SUL carrier and the other is a high-frequency UL carrier (called a dedicated UL carrier for NR).

[0093] For example, Figure 2 and Figure 3 As shown, the NR system may include a high-frequency UL carrier in frequency band f0 and a low-frequency UL carrier in frequency band f1.

[0094] Among them, Figure 2 As shown, the high frequency UL carrier in the frequency band f0 is frequency division multiplexed (FDD) with the high frequency DL carrier in the frequency band f0, or, as Figure 3 As shown, a high frequency UL carrier in frequency band f0 and a high frequency DL carrier in frequency band f1 are time division multiplexed (Time Division Duplexing, TDD).

[0095] Optionally, the SUL carrier can also share spectrum resources with the LTE system, that is, on f1, only part of the resources can be used by NR, and the rest of the resources are used for LTE. Resource sharing can be frequency division multiplexing (FDM) or time division multiplexing (TDM) (for example, Figure 4 and 5 TDM method as shown).

[0096] It should be understood that although the above description is based on the example of two UL carriers in the NR system, the embodiments of the present application are not limited to this. For example, the NR system may also have three or more UL carriers.

[0097] It should also be understood that in the embodiment of the present application, the multiple UL carriers included in the NR system can all be used for uplink transmission by the terminal device, but during configuration, the terminal device can be configured to use only some of the UL carriers for uplink transmission.

[0098] Optionally, the network device configures the number of UL carriers used by the terminal device and which specific UL carrier can be changed dynamically.

[0099] To this end, an embodiment of the present application provides the following wireless communication method to solve how to perform wireless communication in a scenario where the network supports multiple UL carriers.

[0100] Figure 6 is a schematic flow chart of a wireless communication method 200 according to an embodiment of the present application. The method 200 may optionally be applied to Figure 1 The system shown is not limited thereto. The method 200 includes at least part of the following.

[0101] In 210, the network device determines a first uplink carrier, where the first uplink carrier is an uplink carrier among a plurality of uplink carriers available for the terminal device.

[0102] Optionally, multiple uplink carriers available for a terminal device mean that the multiple uplink carriers can be selected or configured for uplink transmission of the terminal device, but this does not mean that the terminal device must use multiple uplink carriers for uplink transmission.

[0103] Optionally, the multiple uplink carriers available for the terminal device are respectively in multiple different frequency bands.

[0104] Optionally, any two uplink carriers among the multiple uplink carriers may partially overlap in the frequency domain, or may not overlap at all.

[0105] Optionally, the frequency band of the first uplink carrier is lower than the frequency bands of other uplink carriers. For example, the first uplink carrier may be Figure 2-Figure 5 The SUL carrier is shown.

[0106] The uplink carrier in the embodiment of the present application may also be referred to as an uplink carrier.

[0107] In 220, the network device sends configuration information to the terminal device, where the configuration information includes configuration information associated with the first uplink carrier.

[0108] Optionally, the network device sends the configuration information to multiple terminal devices via broadcast signaling, or remaining minimum system information (RMSI), or system information.

[0109] Optionally, the network device sends the configuration information to a single terminal device via high-layer signaling.

[0110] For example, the configuration information may be sent to a single terminal device via a Radio Resource Control (RRC) command or a Media Access Control (MAC) control element (CE).

[0111] In 230, the terminal device receives the configuration information sent by the network device.

[0112] In 240, according to the configuration information, the terminal device performs uplink transmission on the first uplink carrier.

[0113] Therefore, in an embodiment of the present application, there are multiple uplink carriers that can be used for uplink transmission of the terminal device, and the uplink carriers among the multiple uplink carriers can be configured, thereby increasing the flexibility of the uplink transmission of the terminal device and improving communication performance.

[0114] Optionally, in an embodiment of the present application, the configuration information includes resource information of the first uplink carrier. Thus, the terminal device can determine the resources of the first uplink carrier according to the resource information included in the configuration information, so as to perform uplink transmission.

[0115] Optionally, the resource information includes carrier position information of the first uplink carrier, wherein the carrier position information may include a frequency band where the carrier is located.

[0116] Optionally, the resource information includes bandwidth information of the first uplink carrier.

[0117] The bandwidth information may include the bandwidth actually used by the first uplink carrier, the initial access bandwidth of the first uplink carrier, or the reference bandwidth of the first uplink carrier relative to a reference object (for example, the bandwidth starting from a certain reference point).

[0118] Optionally, the configuration information includes configuration information for transmitting a sounding reference signal (SRS) on the first uplink carrier, so that the terminal device can perform SRS transmission according to the configuration information.

[0119] Optionally, the configuration information includes configuration information for performing physical uplink shared channel (PUSCH) or physical uplink control channel (PUCCH) transmission on the first uplink carrier, so that the terminal device can perform PUSCH or PUCCH transmission according to the configuration information.

[0120] Optionally, the configuration information is used to indicate random access resources and / or random access codes for performing a random access process on the first uplink carrier. The random access resources for performing a random access process on the first uplink carrier may be part of the resources included in the first uplink carrier itself.

[0121] Optionally, the configuration information indicates a frequency domain position of the random access resource relative to a reference carrier position.

[0122] Optionally, the reference carrier position is a carrier position of the first uplink carrier; or,

[0123] The reference carrier position is a carrier position of another uplink carrier among the plurality of uplink carriers other than the first uplink carrier; or

[0124] The reference carrier position is the carrier position of the downlink carrier of the terminal device.

[0125] Of course, the reference carrier position in the embodiment of the present application may also be other positions.

[0126] Optionally, the configuration signaling to which the configuration information belongs is also used to indicate: random access resources and / or random access codes for performing a random access process on at least one second uplink carrier. The random access resources and / or random access codes for performing a random access process on the first uplink carrier may be the same as the random access resources and / or random access codes for performing a random access process on the second uplink carrier. The random access code in the embodiment of the present application may be referred to as a random access preamble.

[0127] That is, the network device can send random access resources and / or access codes for configuring random access processes for multiple uplinks, so that the network device can select an uplink carrier for random access and use the random access resources and / or access codes corresponding to the selected uplink carrier for random access.

[0128] Optionally, the terminal device may select an uplink carrier for random access based on specific parameters.

[0129] For example, the specific parameter can be used by the terminal device to obtain the DL signal threshold corresponding to the uplink carrier, so that the terminal device selects the corresponding uplink carrier for the random access process according to the relationship between the downlink carrier (Downlink, DL) signal measurement result and the DL signal threshold.

[0130] For example, the value corresponding to the DL signal threshold includes a, when the value of the DL signal is greater than or equal to a, the first uplink carrier is selected for random access, and when the value of the DL signal is less than a, the second uplink carrier is selected for random access.

[0131] Optionally, the parameter for selecting the uplink carrier during random access may be sent by the network device to the terminal device via indication information, wherein the parameter may directly indicate the above-mentioned DL signal threshold, or may also provide a parameter for indirectly obtaining the DL signal threshold.

[0132] The indication information is carried in the configuration signaling to which the above configuration information belongs; or the indication information is sent independently from the above configuration information via broadcast signaling, or RMSI, or system information.

[0133] Optionally, the parameters used to select the uplink carrier during random access may be preset on the terminal device.

[0134] Optionally, the random access process mentioned in the embodiment of the present application is a contention-free random access process.

[0135] Figure 7 is a schematic block diagram of a network device 300 according to an embodiment of the present application. Figure 7 As shown, the network device 300 includes a processing unit 310 and a transceiver unit 320 .

[0136] The processing unit 310 is used to: determine a first uplink carrier, where the first uplink carrier is an uplink carrier among multiple uplink carriers available for the terminal device;

[0137] The transceiver unit 320 is used to: send configuration information to the terminal device, where the configuration information includes configuration information associated with the first uplink carrier.

[0138] It should be understood that the network device 300 can execute the corresponding operations performed by the network device in the above method embodiment, and for the sake of brevity, they are not repeated here.

[0139] Figure 8 It is a schematic block diagram of a terminal device 400 according to an embodiment of the present application.

[0140] like Figure 8 As shown, the terminal device 400 includes a receiving unit 410 and a transmission unit 420; wherein the receiving unit 410 is used to: receive configuration information sent by a network device, the configuration information including configuration information associated with a first uplink carrier, and the first uplink carrier is an uplink carrier among multiple uplink carriers that can be used for the terminal device; the transmission unit 420 is used to: perform uplink transmission on the first uplink carrier according to the configuration information.

[0141] It should be understood that the terminal device 400 can execute the corresponding operations performed by the terminal device in the above method embodiment, and for the sake of brevity, they are not repeated here.

[0142] Fig. 9 It is a schematic structural diagram of the system chip 500 according to an embodiment of the present application. Fig. 9 The system chip 500 includes an input interface 501 , an output interface 502 , and the processor 503 and the memory 504 can be connected via an internal communication connection line. The processor 503 is used to execute the code in the memory 504 .

[0143] Optionally, when the code is executed, the processor 503 implements the method executed by the network device in the method embodiment. For the sake of brevity, it will not be described in detail here.

[0144] Optionally, when the code is executed, the processor 503 implements the method executed by the terminal device in the method embodiment. For the sake of brevity, it will not be described here.

[0145] Fig.10 is a schematic block diagram of a communication device 600 according to an embodiment of the present application. Fig.10 As shown, the communication device 600 includes a processor 610 and a memory 620. The memory 620 may store program codes, and the processor 610 may execute the program codes stored in the memory 620.

[0146] Alternatively, if Fig.10 As shown, the communication device 600 may include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate externally.

[0147] Optionally, the processor 610 may call program codes stored in the memory 620 to execute corresponding operations of the network device in the method embodiment, which will not be described in detail here for the sake of brevity.

[0148] Optionally, the processor 610 may call program codes stored in the memory 620 to execute corresponding operations of the terminal device in the method embodiment, which will not be described in detail here for the sake of brevity.

[0149] It should be understood that the processor of the embodiment of the present application may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method embodiment can be completed by the hardware integrated logic circuit or software instructions in the processor. The above processor can be a general processor, a digital signal processor (Digital Signal Processor, DSP), an application-specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general processor can be a microprocessor or the processor can also be any conventional processor. The steps of the method disclosed in the embodiment of the present application can be directly embodied as a hardware decoding processor to perform, or the hardware and software modules in the decoding processor are combined and performed. The software module can be located in a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, and other mature storage media in the art. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0150] It can be understood that the memory in the embodiments of the present application can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0151] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software 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 this application.

[0152] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0153] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units 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, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0154] The units described 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.

[0155] 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.

[0156] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0157] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A wireless communication method, characterized in that: include: The network device determines a first uplink carrier, where the first uplink carrier is an uplink carrier among a plurality of uplink carriers available for the terminal device; The network device sends configuration information to the terminal device, the configuration information including configuration information associated with the first uplink carrier, the configuration information indicating a frequency domain position of a random access resource for performing a random access process on the first uplink carrier relative to a reference carrier position; The reference carrier position is the carrier position of the first uplink carrier; or The reference carrier position is a carrier position of another uplink carrier among the plurality of uplink carriers other than the first uplink carrier; or The reference carrier position is the carrier position of the downlink carrier of the terminal device.

2. The method according to claim 1, characterized in that The network device sends configuration information to the terminal device, including: The network device sends the configuration information to the plurality of terminal devices via broadcast signaling, or remaining minimum system information RMSI, or system information.

3. The method according to claim 1, characterized in that The network device sends configuration information to the terminal device, including: The network device sends the configuration information to the single terminal device through high-layer signaling.

4. The method according to any one of claims 1 to 3, characterized in that The configuration information includes resource information of the first uplink carrier.

5. The method according to claim 4, characterized in that The resource information includes carrier position information of the first uplink carrier.

6. The method according to claim 4, characterized in that The resource information includes bandwidth information of the first uplink carrier.

7. The method according to claim 6, characterized in that The bandwidth information includes a bandwidth actually used by the first uplink carrier, an initial access bandwidth of the first uplink carrier, or a reference bandwidth of a relative reference object of the first uplink carrier.

8. The method according to any one of claims 1 to 3, characterized in that The configuration information includes configuration information for transmitting a sounding reference signal (SRS) on the first uplink carrier.

9. The method according to any one of claims 1 to 3, characterized in that The configuration information includes configuration information for performing physical uplink shared channel PUSCH or physical uplink control channel PUCCH transmission on the first uplink carrier.

10. The method according to any one of claims 1 to 3, characterized in that The configuration information is also used to indicate a random access code for performing a random access process on the first uplink carrier.

11. The method according to claim 1, characterized in that The configuration signaling to which the configuration information belongs is also used to indicate: random access resources and / or random access codes for performing a random access process on at least one second uplink carrier.

12. The method according to claim 11, characterized in that The method further comprises: The network device sends indication information to the terminal device, where the indication information indicates parameters used to select an uplink carrier during random access.

13. The method according to claim 12, characterized in that The parameter is used by the terminal device to obtain the DL signal threshold corresponding to the uplink carrier, and is used by the terminal device to select the corresponding uplink carrier for the random access process according to the relationship between the DL signal measurement result and the DL signal threshold.

14. The method according to claim 12 or 13, characterized in that The indication information is carried in the configuration signaling to which the configuration information belongs; or, The indication information is sent via broadcast signaling, or RMSI, or system information.

15. The method according to any one of claims 1 to 3, characterized in that The random access process is a contention-free random access process.

16. The method according to any one of claims 1 to 3, characterized in that The multiple uplink carriers available for the terminal device are respectively in multiple different frequency bands.

17. The method according to claim 16, characterized in that The frequency band of the first uplink carrier is lower than the frequency bands of other uplink carriers.

18. A wireless communication method, characterized in that: include: The terminal device receives configuration information sent by the network device, the configuration information including configuration information associated with a first uplink carrier, the configuration information indicating a frequency domain position of a random access resource for performing a random access process on the first uplink carrier relative to a reference carrier position, the first uplink carrier being an uplink carrier among multiple uplink carriers available for the terminal device; The reference carrier position is the carrier position of the first uplink carrier; or The reference carrier position is a carrier position of another uplink carrier among the plurality of uplink carriers other than the first uplink carrier; or The reference carrier position is the carrier position of the downlink carrier of the terminal device; According to the configuration information, the terminal device performs uplink transmission on the first uplink carrier.

19. The method according to claim 18, characterized in that The terminal device receives configuration information sent by the network device, including: The terminal device receives the configuration information sent by the network device through broadcast signaling, or remaining minimum system information RMSI, or system information.

20. The method according to claim 18, characterized in that The terminal device receives configuration information sent by the network device, including: The terminal device receives the configuration information sent by the network device through high-level signaling.

21. The method according to any one of claims 18 to 20, characterized in that The configuration information includes resource information of the first uplink carrier.

22. The method according to claim 21, characterized in that The resource information includes carrier position information of the first uplink carrier.

23. The method according to claim 21, characterized in that The resource information includes bandwidth information of the first uplink carrier.

24. The method according to claim 23, characterized in that The bandwidth information includes a bandwidth actually used by the first uplink carrier, an initial access bandwidth of the first uplink carrier, or a reference bandwidth of a relative reference object of the first uplink carrier.

25. The method according to any one of claims 18 to 20, characterized in that The configuration information includes configuration information for transmitting a sounding reference signal (SRS) on the first uplink carrier.

26. The method according to any one of claims 18 to 20, characterized in that The configuration information includes configuration information for performing physical uplink shared channel PUSCH or physical uplink control channel PUCCH transmission on the first uplink carrier.

27. The method according to any one of claims 18 to 20, characterized in that The configuration information is also used to indicate a random access code for performing a random access process on the first uplink carrier.

28. The method according to any one of claims 18, characterized in that The configuration signaling to which the configuration information belongs is also used to indicate: random access resources and / or random access codes for performing a random access process on at least one second uplink carrier.

29. The method according to claim 28, characterized in that The method further comprises: The terminal device receives indication information sent by the network device, where the indication information indicates a parameter for selecting an uplink carrier during random access; Before the terminal device performs uplink transmission on the first uplink carrier according to the configuration information, the method further includes: Based on the parameters, the terminal device determines to perform uplink transmission on the first uplink carrier.

30. The method according to claim 29, characterized in that The parameter is used by the terminal device to obtain a DL signal threshold corresponding to an uplink carrier; and the terminal device determines, according to the parameter, to perform uplink transmission on the first uplink carrier, including: The terminal device determines to perform uplink transmission on the first uplink carrier based on the relationship between the DL signal measurement result and the DL signal threshold.

31. The method according to claim 29 or 30, characterized in that The indication information is carried in the configuration signaling to which the configuration information belongs; or, The indication information is sent via broadcast signaling, or RMSI, or system information.

32. The method according to any one of claims 18 to 20, characterized in that The random access process is a contention-free random access process.

33. The method according to any one of claims 18 to 20, characterized in that The multiple uplink carriers available for the terminal device are respectively in multiple different frequency bands.

34. The method according to claim 33, characterized in that A frequency band of the first uplink carrier is lower than a frequency band of other uplink carriers in the multiple uplink carriers.

35. The method according to any one of claims 18 to 20, characterized in that The first uplink carrier is a supplementary (SUL) carrier.

36. A network device, characterized in that: It includes a processing unit and a transceiver unit; wherein, The processing unit is configured to: determine a first uplink carrier, where the first uplink carrier is an uplink carrier among a plurality of uplink carriers available for the terminal device; The transceiver unit is used to: send configuration information to the terminal device, the configuration information including configuration information associated with the first uplink carrier, the configuration information indicating the frequency domain position of a random access resource for performing a random access process on the first uplink carrier relative to a reference carrier position; The reference carrier position is the carrier position of the first uplink carrier; or The reference carrier position is a carrier position of another uplink carrier among the plurality of uplink carriers other than the first uplink carrier; or The reference carrier position is the carrier position of the downlink carrier of the terminal device.

37. The network device according to claim 36, characterized in that: The transceiver unit is further used for: The configuration information is sent to the plurality of terminal devices via broadcast signaling, or remaining minimum system information RMSI, or system information.

38. The network device according to claim 36, characterized in that The transceiver unit is further used for: The configuration information is sent to the single terminal device via high-layer signaling.

39. The network device according to any one of claims 36 to 38, characterized in that: The configuration information includes resource information of the first uplink carrier.

40. The network device according to claim 39, characterized in that: The resource information includes carrier position information of the first uplink carrier.

41. The network device according to claim 39, characterized in that: The resource information includes bandwidth information of the first uplink carrier.

42. The network device according to claim 41, characterized in that The bandwidth information includes a bandwidth actually used by the first uplink carrier, an initial access bandwidth of the first uplink carrier, or a reference bandwidth of a relative reference object of the first uplink carrier.

43. The network device according to any one of claims 36 to 38, characterized in that: The configuration information includes configuration information for transmitting a sounding reference signal (SRS) on the first uplink carrier.

44. The network device according to any one of claims 36 to 38, characterized in that: The configuration information includes configuration information for performing physical uplink shared channel PUSCH or physical uplink control channel PUCCH transmission on the first uplink carrier.

45. The network device according to any one of claims 36 to 38, characterized in that: The configuration information is also used to indicate a random access code for performing a random access process on the first uplink carrier.

46. ​​The network device according to any one of claims 36, characterized in that: The configuration signaling to which the configuration information belongs is also used to indicate: random access resources and / or random access codes for performing a random access process on at least one second uplink carrier.

47. The network device according to claim 46, characterized in that The transceiver unit is further used to: send indication information to the terminal device, where the indication information indicates parameters used to select an uplink carrier during random access.

48. The network device according to claim 47, characterized in that The parameter is used by the terminal device to obtain the DL signal threshold corresponding to the uplink carrier, and is used by the terminal device to select the corresponding uplink carrier for the random access process according to the relationship between the DL signal measurement result and the DL signal threshold.

49. The network device according to claim 47 or 48, characterized in that: The indication information is carried in the configuration signaling to which the configuration information belongs; or, The indication information is sent via broadcast signaling, or RMSI, or system information.

50. The network device according to any one of claims 36 to 38, characterized in that: The random access process is a contention-free random access process.

51. The network device according to any one of claims 36 to 38, characterized in that: The multiple uplink carriers available for the terminal device are respectively in multiple different frequency bands.

52. The network device according to claim 51, characterized in that The frequency band of the first uplink carrier is lower than the frequency bands of other uplink carriers.

53. A terminal device, characterized in that: It includes a receiving unit and a transmitting unit; wherein, The receiving unit is used to: receive configuration information sent by a network device, the configuration information including configuration information associated with a first uplink carrier, the configuration information indicating a frequency domain position of a random access resource for performing a random access process on the first uplink carrier relative to a reference carrier position, the first uplink carrier being an uplink carrier among a plurality of uplink carriers available for the terminal device; The reference carrier position is the carrier position of the first uplink carrier; or The reference carrier position is a carrier position of another uplink carrier among the plurality of uplink carriers other than the first uplink carrier; or The reference carrier position is the carrier position of the downlink carrier of the terminal device; The transmission unit is used for: performing uplink transmission on the first uplink carrier according to the configuration information.

54. The terminal device according to claim 53, characterized in that: The receiving unit is further used for: The configuration information is received from the network device through broadcast signaling, remaining minimum system information RMSI, or system information.

55. The terminal device according to claim 53, characterized in that: The receiving unit is further used for: The configuration information is received from the network device through high-layer signaling.

56. The terminal device according to any one of claims 53 to 55, characterized in that: The configuration information includes resource information of the first uplink carrier.

57. The terminal device according to claim 56, characterized in that: The resource information includes carrier position information of the first uplink carrier.

58. The terminal device according to claim 56, characterized in that: The resource information includes bandwidth information of the first uplink carrier.

59. The terminal device according to claim 58, characterized in that: The bandwidth information includes a bandwidth actually used by the first uplink carrier, an initial access bandwidth of the first uplink carrier, or a reference bandwidth of a relative reference object of the first uplink carrier.

60. The terminal device according to any one of claims 53 to 55, characterized in that: The configuration information includes configuration information for transmitting a sounding reference signal (SRS) on the first uplink carrier.

61. The terminal device according to any one of claims 53 to 55, characterized in that: The configuration information includes configuration information for performing physical uplink shared channel PUSCH or physical uplink control channel PUCCH transmission on the first uplink carrier.

62. The terminal device according to any one of claims 53 to 55, characterized in that: The configuration information is used to indicate a random access resource and / or a random access code for performing a random access process on the first uplink carrier.

63. The terminal device according to claim 53, characterized in that: The configuration signaling to which the configuration information belongs is also used to indicate: random access resources and / or random access codes for performing a random access process on at least one second uplink carrier.

64. The terminal device according to claim 63, characterized in that: The receiving unit is further used to: receive indication information sent by the network device, where the indication information indicates a parameter for selecting an uplink carrier during random access; The transmission unit is further used to: determine, according to the parameter, to perform uplink transmission on the first uplink carrier.

65. The terminal device according to claim 64, characterized in that: The parameter is used by the terminal device to obtain the DL signal threshold corresponding to the uplink carrier; the transmission unit is further used to: According to the relationship between the DL signal measurement result and the DL signal threshold, it is determined to perform uplink transmission on the first uplink carrier.

66. The terminal device according to claim 64 or 65, characterized in that: The indication information is carried in the configuration signaling to which the configuration information belongs; or, The indication information is sent via broadcast signaling, or RMSI, or system information.

67. The terminal device according to any one of claims 53 to 55, characterized in that: The random access process is a contention-free random access process.

68. The terminal device according to any one of claims 53 to 55, characterized in that: The multiple uplink carriers available for the terminal device are respectively in multiple different frequency bands.

69. The terminal device according to claim 68, characterized in that: A frequency band of the first uplink carrier is lower than a frequency band of other uplink carriers in the multiple uplink carriers.

70. The terminal device according to any one of claims 53 to 55, characterized in that: The first uplink carrier is a supplementary (SUL) carrier.

71. A network device, characterized in that: The device comprises a processor, a memory and a transceiver, wherein the processor, the memory and the transceiver communicate with each other through an internal connection path; wherein, The transceiver is used to execute signal transmission and / or reception in the controller of the processor; The memory is used to store instructions; The processor is configured to execute instructions stored in the memory to perform the method according to any one of claims 1 to 17.

72. A terminal device, characterized in that: The device comprises a processor, a memory and a transceiver, wherein the processor, the memory and the transceiver communicate with each other through an internal connection path; wherein, The transceiver is used to execute signal transmission and / or reception in the controller of the processor; The memory is used to store instructions; The processor is configured to execute instructions stored in the memory to perform the method according to any one of claims 18 to 35.

73. A computer readable storage medium having stored thereon instructions for executing the method according to any one of claims 1 to 17.

74. A computer readable storage medium having stored thereon instructions for executing the method of any one of claims 18 to 35.

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