Communication method and device

Abstract

Provided are a communication method and apparatus, comprising: sending first information to a network device, the first information indicating a first frequency band supported by a terminal device, the first frequency band comprising an uplink frequency band and / or a downlink frequency band; second information is sent to the network equipment, the second information indicates a working frequency range set, the working frequency range set comprises at least one sub-working frequency range, and the sub-working frequency range is the working frequency range supported by the terminal equipment on the first frequency band; the sub-working frequency range comprises an uplink working frequency range and / or a downlink working frequency range. Through the first information and the second information, it can be ensured that the frequency resource allocated to the terminal equipment by the network equipment corresponds to the frequency range supported by the terminal equipment on the frequency band, so that flexible frequency resource scheduling is achieved, and the requirement for establishing good and safe communication between the network equipment and the terminal equipment is met.

Description

Technical Field

[0001] The present invention relates to the field of wireless communication technology and more particularly to a communication method and device. Background Art

[0002] Currently, protocol standards such as TS 38.101-1 and TS38.101-2 define frequency band combination indicators and specific frequency band indicators. Terminal devices report their working capabilities to network devices according to the protocol, so that the network devices allocate frequency resources to the terminal devices according to the terminal capabilities.

[0003] However, with the popularization of 5G networks, the current protocol standards and communication solutions are not sufficient to meet the needs of establishing good and secure communications between network equipment and terminal equipment. In addition, the update and iteration of terminal equipment also leads to the mismatch between the frequency ranges supported by different terminal devices and the standard definition. If new frequency bands are defined using standards, and the frequency band combination indicators and specific frequency band indicators are redefined based on existing frequency bands and terminal equipment capabilities, the complexity of frequency resources scheduled by network equipment will increase. At the same time, operators will lose the ecology of the original frequency bands. Not only is the workload of the standard large, but it also brings additional complexity and cost to the implementation of equipment. In addition, the testing burden of the new standard has also greatly increased, which is not conducive to the development of the industry.

[0004] Therefore, in the new ecology, how to achieve flexible frequency resource scheduling, ensure that the frequency resources allocated by network devices correspond to the capabilities of terminal devices, and meet the needs of establishing good and secure communications between network devices and terminal devices is an urgent problem to be solved. Summary of the invention

[0005] The present application provides a communication method and apparatus, by which a terminal device reports a supported operating frequency range to a network device according to the working capability of its own duplexer, thereby ensuring that the allocated frequency resources correspond to the frequency range supported by the terminal device, achieving flexible frequency resource scheduling of the network device, and meeting the needs of establishing good and secure communication between the network device and the terminal device.

[0006] In a first aspect, a communication method is provided, comprising: sending first information to a network device, the first information indicating a first frequency band supported by a terminal device, the first frequency band including an uplink frequency band and / or a downlink frequency band; sending second information to the network device, the second information indicating a working frequency range set, wherein the working frequency range set includes at least one sub-working frequency range, the sub-working frequency range is a working frequency range supported by the terminal device on the first frequency band, the sub-working frequency range including an uplink working frequency range and / or a downlink working frequency range; wherein the uplink frequency band is 703-74 8MHz, and the downlink frequency band is 758~803MHz; the uplink operating frequency range is 703~733MHz, and the downlink operating frequency range is 758~788MHz; and / or the uplink operating frequency range is 718~748MHz, and the downlink operating frequency range is 773~803MHz; and / or the uplink operating frequency range is 703~743MHz, and the downlink operating frequency range is 758~798MHz; and / or the uplink operating frequency range is 703~748MHz, and the downlink operating frequency range is 758~803MHz.

[0007] Through the first information and the second information, it can be ensured that the frequency resources allocated by the network device to the terminal device correspond to the frequency range supported by the terminal device in the frequency band, thereby realizing flexible frequency resource scheduling and meeting the needs of establishing good and secure communication between the network device and the terminal device.

[0008] In combination with the first aspect, in some implementations of the first aspect, the second information is determined according to the duplexer of the terminal device, so that the terminal device and the network device can transmit the second information to ensure that the frequency resources allocated by the network device to the terminal device correspond to the frequency range supported by the duplexer of the terminal device.

[0009] In combination with the first aspect, in certain implementations of the first aspect, wherein: the second information indicates the duplexer type of the terminal device, and the duplexer type of the terminal device corresponds to a set of operating frequency ranges; or the second information indicates the duplexer capability of the terminal device, and the duplexer capability of the terminal device corresponds to a set of operating frequency ranges.

[0010] In combination with the first aspect, in some implementations of the first aspect, the method further includes: receiving frequency resources allocated by the network device, the frequency resources belonging to the first frequency band and belonging to the working frequency range set, so as to ensure that the frequency resources allocated by the network device to the terminal device correspond to the frequency range supported by the terminal device on the frequency band.

[0011] In combination with the first aspect, in some implementations of the first aspect, the method further includes: sending third information to the network device, the third information indicating the maximum transmission bandwidth supported by the terminal device, wherein the bandwidth of the frequency resource is less than or equal to the maximum transmission bandwidth. The maximum transmission bandwidth may refer to a specific value, such as 30 MHz, 40 MHz or 45 MHz. Thus, after the network device determines the actual operating frequency range supported by the terminal device through the first information and the second information, it can schedule frequency resources of a specific bandwidth for the terminal device within the operating frequency range actually supported by the terminal device, and establish good communication.

[0012] In conjunction with the first aspect, in some implementations of the first aspect, the first information and the second information are sent via terminal device capability information. In some implementations, the third information is also sent via terminal device capability information.

[0013] In a second aspect, a communication method is provided, including: receiving first information sent from a terminal device, the first information indicating a first frequency band supported by the terminal device, the first frequency band including an uplink frequency band and / or a downlink frequency band; receiving second information sent from the terminal device, the second information indicating a working frequency range set, wherein the working frequency range set includes at least one sub-working frequency range, the sub-working frequency range is a working frequency range supported by the terminal device on the first frequency band, the sub-working frequency range including an uplink working frequency range and / or a downlink working frequency range; allocating frequency resources to the terminal device, the frequency resources being allocated based on the first information and the second information The information is determined; among which, the uplink frequency band is 703-748MHz, and the downlink frequency band is 758-803MHz; the uplink operating frequency range is 703-733MHz, and the downlink operating frequency range is 758-788MHz; and / or the uplink operating frequency range is 718-748MHz, and the downlink operating frequency range is 773-803MHz; and / or the uplink operating frequency range is 703-743MHz, and the downlink operating frequency range is 758-798MHz; and / or the uplink operating frequency range is 703-748MHz, and the downlink operating frequency range is 758-803MHz.

[0014] Through the first information and the second information, it can be ensured that the frequency resources allocated by the network device to the terminal device correspond to the frequency range supported by the terminal device in the frequency band, thereby realizing flexible frequency resource scheduling and meeting the needs of establishing good and secure communication between the network device and the terminal device.

[0015] In conjunction with the second aspect, in some implementations of the second aspect, the second information is determined according to the duplexer of the terminal device, so that the terminal device and the network device can transmit the second information to ensure that the frequency resources allocated by the network device to the terminal device correspond to the frequency range supported by the duplexer of the terminal device.

[0016] In combination with the second aspect, in certain implementations of the second aspect, wherein: the second information indicates the duplexer type of the terminal device, and the duplexer type of the terminal device corresponds to a set of operating frequency ranges; or the second information indicates the duplexer capability of the terminal device, and the duplexer capability of the terminal device corresponds to a set of operating frequency ranges.

[0017] In conjunction with the second aspect, in some implementations of the second aspect, the frequency resource belongs to the first frequency band and belongs to the operating frequency range set, thereby ensuring that the frequency resource allocated by the network device to the terminal device corresponds to the frequency range supported by the terminal device on the frequency band.

[0018] In combination with the second aspect, in some implementations of the second aspect, the method further includes: receiving third information sent from the terminal device, the third information indicating the maximum transmission bandwidth supported by the terminal device; the bandwidth of the frequency resource is less than or equal to the maximum transmission bandwidth. The maximum transmission bandwidth may refer to a specific value, such as 30MHz, 40MHz, 45MHz, etc. Thus, after the network device determines the actual operating frequency range supported by the terminal device through the first information and the second information, it can schedule frequency resources of a specific bandwidth for the terminal device within the operating frequency range actually supported by the terminal device to establish good communication.

[0019] In conjunction with the second aspect, in some implementations of the second aspect, the first information and the second information are received through the terminal device capability information. This allows for reuse of some existing signaling, ensures compatibility with existing systems, and avoids the additional complexity and cost of redefining standards. In some implementations, the third information is also received through the terminal device capability information.

[0020] According to a third aspect, a terminal device is provided, comprising: a sending module, configured to send first information to a network device, the first information indicating a first frequency band supported by the terminal device, the first frequency band including an uplink frequency band and / or a downlink frequency band; the sending module is also configured to send second information to the network device, the second information indicating a working frequency range set, wherein the working frequency range set includes at least one sub-working frequency range, the sub-working frequency range is a working frequency range supported by the terminal device on the first frequency band, the sub-working frequency range including an uplink working frequency range and / or a downlink working frequency range; wherein the uplink frequency band The uplink operating frequency range is 703-748MHz, and the downlink operating frequency range is 758-803MHz; the uplink operating frequency range is 703-733MHz, and the downlink operating frequency range is 758-788MHz; and / or the uplink operating frequency range is 718-748MHz, and the downlink operating frequency range is 773-803MHz; and / or the uplink operating frequency range is 703-743MHz, and the downlink operating frequency range is 758-798MHz; and / or the uplink operating frequency range is 703-748MHz, and the downlink operating frequency range is 758-803MHz.

[0021] Through the first information and the second information, it can be ensured that the frequency resources allocated by the network device to the terminal device correspond to the frequency range supported by the terminal device in the frequency band, thereby realizing flexible frequency resource scheduling and meeting the needs of establishing good and secure communication between the network device and the terminal device.

[0022] In conjunction with the third aspect, in certain implementations of the third aspect, the second information is determined according to the duplexer of the terminal device, so that the terminal device and the network device can transmit the second information to ensure that the frequency resources allocated by the network device to the terminal device correspond to the frequency range supported by the duplexer of the terminal device.

[0023] In combination with the third aspect, in certain implementations of the third aspect, wherein: the second information indicates the duplexer type of the terminal device, and the duplexer type of the terminal device corresponds to a set of operating frequency ranges; or the second information indicates the duplexer capability of the terminal device, and the duplexer capability of the terminal device corresponds to a set of operating frequency ranges.

[0024] In conjunction with the third aspect, in some implementations of the third aspect, the terminal device further includes a receiving module: the receiving module is used to receive frequency resources sent from the network device, the frequency resources belong to the first frequency band and belong to the working frequency range set. This ensures that the frequency resources allocated by the network device to the terminal device correspond to the frequency range supported by the terminal device on the frequency band.

[0025] In conjunction with the third aspect, in certain implementations of the third aspect, the sending module is further used to send third information to the network device, the third information indicating the maximum transmission bandwidth supported by the terminal device, wherein the bandwidth of the frequency resource is less than or equal to the maximum transmission bandwidth. The maximum transmission bandwidth may refer to a specific value, such as 30MHz, 40MHz, 45MHz, etc. Thus, after the network device determines the actual operating frequency range supported by the terminal device through the first information and the second information, it can schedule frequency resources of a specific bandwidth for the terminal device within the operating frequency range actually supported by the terminal device, and establish good communication.

[0026] In conjunction with the third aspect, in some implementations of the third aspect, the sending module sends the first information and the second information through the terminal device capability information. This allows for reuse of some existing signaling, ensures compatibility with existing systems, and avoids the additional complexity and cost caused by repeated definition of standards. In some implementations, the sending module sends the third information through the terminal device capability information.

[0027] In a fourth aspect, a network device is provided, comprising: a receiving module, configured to receive first information sent from a terminal device, the first information indicating a first frequency band supported by the terminal device, the first frequency band including an uplink frequency band and / or a downlink frequency band; the receiving module is also configured to receive second information sent from the terminal device, the second information indicating a set of operating frequency ranges, wherein the set of operating frequency ranges includes at least one sub-operating frequency range, the sub-operating frequency range is an operating frequency range supported by the terminal device on the first frequency band, the sub-operating frequency range including an uplink operating frequency range and / or a downlink operating frequency range; a processing module, configured to allocate frequency resources to the terminal device, the frequency resources being allocated based on The first information and the second information are determined; wherein, the uplink frequency band is 703-748MHz, and / or the downlink frequency band is 758-803MHz; the uplink operating frequency range is 703-733MHz, and the downlink operating frequency range is 758-788MHz; and / or the uplink operating frequency range is 718-748MHz, and the downlink operating frequency range is 773-803MHz; and / or the uplink operating frequency range is 703-743MHz, and the downlink operating frequency range is 758-798MHz; and / or the uplink operating frequency range is 703-748MHz, and the downlink operating frequency range is 758-803MHz.

[0028] Through the first information and the second information, it can be ensured that the frequency resources allocated by the network device to the terminal device correspond to the frequency range supported by the terminal device in the frequency band, thereby realizing flexible frequency resource scheduling and meeting the needs of establishing good and secure communication between the network device and the terminal device.

[0029] In conjunction with the fourth aspect, in some implementations of the fourth aspect, the second information is determined according to the duplexer of the terminal device. Thus, the terminal device and the network device can transmit the second information to ensure that the frequency resource allocated by the network device to the terminal device corresponds to the frequency range supported by the duplexer of the terminal device.

[0030] In combination with the fourth aspect, in certain implementations of the fourth aspect, wherein: the second information indicates the duplexer type of the terminal device, and the duplexer type of the terminal device corresponds to a set of operating frequency ranges; or the second information indicates the duplexer capability of the terminal device, and the duplexer capability of the terminal device corresponds to a set of operating frequency ranges.

[0031] In conjunction with the fourth aspect, in certain implementations of the fourth aspect, the frequency resource belongs to the first frequency band and belongs to the working frequency range set, thereby ensuring that the frequency resource allocated by the network device to the terminal device corresponds to the frequency range supported by the terminal device on the frequency band.

[0032] In combination with the fourth aspect, in certain implementations of the fourth aspect, the receiving module is further used to receive third information sent from the terminal device, the third information indicating the maximum transmission bandwidth supported by the terminal device; the bandwidth of the frequency resource is less than or equal to the maximum transmission bandwidth. The maximum transmission bandwidth may refer to a specific value, such as 30MHz, 40MHz, 45MHz, etc. Thus, after the network device determines the actual operating frequency range supported by the terminal device through the first information and the second information, it can schedule frequency resources of a specific bandwidth for the terminal device within the operating frequency range actually supported by the terminal device to establish good communication.

[0033] In conjunction with the fourth aspect, in some implementations of the fourth aspect, the receiving module receives the first information and the second information through the terminal device capability information. This allows for reuse of some existing signaling, ensures compatibility with existing systems, and avoids the additional complexity and cost caused by repeated definition of standards. In some implementations, the receiving module receives the third information through the terminal device capability information.

[0034] In a fifth aspect, a chip is provided, comprising a processor, wherein the processor is coupled to a memory, the memory is used to store a computer program, and the processor is used to execute the computer program stored in the memory, so that part or all of the steps of the method described in the first aspect and any possible implementation thereof, and the second aspect and any possible implementation thereof are executed.

[0035] In a sixth aspect, a computer-readable storage medium is provided, in which a computer program or instruction is stored. When the computer program or instruction is executed by a processor, part or all of the steps of the method described in the first aspect and any possible implementation thereof, and the second aspect and any possible implementation thereof are executed.

[0036] In a seventh aspect, a computer program product is provided. When the computer program product is run, part or all of the steps of the method described in the first aspect and any possible implementation thereof, and the second aspect and any possible implementation thereof are executed.

[0037] In an eighth aspect, a communication system is provided, comprising a first communication device provided by the third aspect and various possible implementations of the aforementioned aspects, and a second communication device provided by the fourth aspect and various possible implementations of the aforementioned aspects. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic diagram of the architecture of the communication system provided in an embodiment of the present application.

[0039] Figure 2 It is a schematic diagram of a method for a terminal device to report the working capability of the terminal device provided in an embodiment of the present application.

[0040] Figure 3 It is a schematic diagram of a communication system in a terminal provided in an embodiment of the present application.

[0041] Figure 4 It is a schematic diagram of a communication method provided in an embodiment of the present application.

[0042] Figure 5 This is a schematic diagram of dividing a set of working frequency ranges provided in an embodiment of the present application.

[0043] Figure 6 It is a schematic diagram of a terminal device provided in an embodiment of the present application.

[0044] Figure 7 It is a schematic diagram of a network device provided in an embodiment of the present application.

[0045] Figure 8 It is a system diagram of a terminal device and a network device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0046] The technical solution in this application will be described below in conjunction with the accompanying drawings.

[0047] The technical solutions of the embodiments of the present application can be applied to various communication systems, for example, long term evolution (LTE) system, long term evolution advanced pro (LTE-Apro), LTE frequency division duplex (FDD) system, LTE time division duplex (TDD), universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) communication system, new radio (NR) and future communication systems.

[0048] The terminal device in the embodiment of the present application may refer to user equipment, access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device. The terminal device may also 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 public land mobile communication network (PLMN), etc., and the present application does not limit this.

[0049] The network device in the embodiment of the present application can be any device with wireless transceiver function. The network device includes, but is not limited to, evolved Node B (eNB), radio network controller (RNC), Node B (NB), base station controller (BSC), base transceiver station (BTS), home evolved NodeB (or home NodeB, HNB), baseband unit (BBU), access point (AP) in wireless fidelity (WIFI) system, wireless relay node, wireless backhaul node, transmission point (TP) or transmission and reception point (TRP), etc., and can also be a gNB or transmission point (TRP or TP) in the fifth generation (5G) system, one or a group of (including multiple antenna panels) antenna panels of a base station in the 5G system, or, can also be a network node constituting a gNB or a transmission point, such as a baseband unit (BBU) or a distributed unit (DU), etc.

[0050] In some deployments, the gNB may include a centralized unit (CU) and a distributed unit (DU). The gNB may also include an active antenna unit (AAU). The CU implements some functions of the gNB, and the DU implements some functions of the gNB. For example, the CU is responsible for processing non-real-time protocols and services, and implements the functions of the radio resource control (RRC) and packet data convergence protocol (PDCP) layers. The DU is responsible for processing physical layer protocols and real-time services, and implements the functions of the radio link control (RLC) layer, the media access control (MAC) layer, and the physical (PHY) layer. The AAU implements some physical layer processing functions, RF processing, and related functions of active antennas. Since the information of the RRC layer will eventually become the information of the PHY layer, or be converted from the information of the PHY layer, in this architecture, high-level signaling, such as RRC layer signaling, can also be considered to be sent by the DU, or by the DU and the AAU.

[0051] It is understandable that the network device may be a device including one or more of CU, DU, and AAU. In addition, the CU may be classified as a network device in an access network (radio access network, RAN), or the CU may be classified as a network device in a core network (core network, CN), which is not limited in this application.

[0052] Figure 1 Schematic diagram of the architecture of the communication system provided in the embodiment of the present application. Figure 1 As shown, the wireless communication system may include at least one network device 101, the network device 101 and one or more terminal devices (eg Figure 1 The terminal device 102 and the terminal device 103 shown in FIG. 1 use wireless communication technology to communicate. In downlink transmission, the network device is the transmitter and the terminal device is the receiver. In uplink transmission, the terminal device is the transmitter and the network device is the receiver.

[0053] It should be understood that Figure 1 What is shown in the figure is only an example. The communication system may include one or more network devices and one or more terminal devices, which are not limited here.

[0054] To facilitate understanding, the relevant concepts involved in this application are first briefly introduced.

[0055] Spectrum: Spectrum refers to a family of electromagnetic waves whose wavelengths (or frequencies) are arranged continuously. Frequencies are continuous, not discrete, and similar frequencies are prone to interference. The spectrum can be divided into multiple frequency bands, and different frequency bands are used for different purposes.

[0056] Band: A band is a specific frequency range in the spectrum. A band is usually represented by a start frequency and an end frequency. In order to avoid interference and conflict when using the spectrum, the band needs to be reasonably allocated and managed. Different bands have different transmission characteristics and coverage, and different bands are used to transmit different types of information or services.

[0057] Bandwidth: Bandwidth refers to the frequency range that can be used for data transmission within a specific frequency band. It can also be understood as the width of the frequency. Bandwidth determines the data transmission rate, similar to the width of a road. Therefore, the larger the bandwidth, the faster the delivery speed, that is, the higher the data transmission rate.

[0058] For each access standard, such as LTE or NR, there are different supported frequency ranges, which are defined as specific bands. In the 3GPP standard, each band is assigned a unique number, such as band 1, band 2, etc. These bands can be further divided into uplink UL band and downlink DL band, which are used for signals sent from mobile phones to base stations and from base stations to mobile phones respectively.

[0059] Table 1 below lists some LTE bands defined in TS 36.101. Among the operating frequency bands of evolved-UMTS terrestrial radio access (E-UTRA), some of the bands in Table 1 are used as examples below:

[0060] Table 1

[0061]

[0062] In addition, TS 38.101-1 mainly defines the frequency band of FR1 (frequency range 1), which is usually called sub-6GHz or low frequency band, specifically including the frequency range of 410MHz to 7125MHz. TS 38.101-2 defines the frequency band of FR2 (frequency range 2), which is the millimeter wave frequency band. Specifically, FR2 is divided into FR2-1, including the frequency range of 24250MHz to 52600MHz; FR2-2, the frequency range of 52600MHz to 71000MHz.

[0063] The following is an exemplary description of the FR1 band using the portion in Table 2:

[0064] Table 2

[0065]

[0066]

[0067] The following is an exemplary description of the FR2 band using the portion in Table 3:

[0068] Table 3

[0069]

[0070] In the process of communication between terminal devices and network devices, different terminal devices support different frequency bands due to different configurations of the terminal devices. Therefore, the terminal devices need to report their working capabilities to the network devices so that the network devices can allocate frequency resources to the terminal devices according to the capabilities of the terminal devices.

[0071] Figure 2 Schematic diagram of a method for a terminal device to report the working capability of the terminal device provided in an embodiment of the present application. Figure 2 As shown, the method includes:

[0072] S210, the network device sends a terminal device capability request (UECapabilityEnquiry) message to the terminal device; correspondingly, the terminal device receives the terminal device capability request message from the network device.

[0073] The network device specifically uses the Filter field in UECapabilityEnquiry to indicate the working capability of the terminal that the network device specifically wants to know.

[0074] S220, the terminal device sends terminal device capability information (UECapabilityInformation) to the network device; correspondingly, the network device receives the terminal device capability information from the terminal device.

[0075] Among them, the UECapabilityInformation signaling may include multiple data structures (Containers), each Container represents the working capability of the terminal device under the corresponding wireless access technology such as LTE, NR or other. The specific working capability may refer to the frequency band combination information, the maximum transmission bandwidth information, the supported modulation and coding schemes, etc. It can also be understood that UECapabilityInformation includes multiple fields, among which the frequency band information, taking supportedBandListNR as an example, is used to indicate the working capability under the NR technology supported by the terminal device, which records all NR bands supported by the terminal in a list. The supportedBandListNR field includes multiple bandNRs, and bandNR represents a specific frequency band in the list, or it can also be called an element. The frequency band in the frequency band information includes a frequency band index, which can also be understood as bandNR including fields such as FreqBandIndicatorNR, channelBWs-UL / channelBWs-DL, etc. Among them, the FreqBandIndicatorNR field defines the frequency band number of the frequency band according to TS 38.101-1 and TS 38.101-2. The channelBWs-UL / channelBWs-DL field can be understood as indicating the maximum uplink and downlink transmission bandwidth of the terminal device.

[0076] As can be seen from the above, currently, protocols such as TS 38.101-1 and TS38.101-2 define frequency bands and specific frequency band indicators. Terminal devices report their working capabilities to network devices according to the protocols, so that network devices determine the frequency resources allocated to terminal devices. However, with the popularization of 5G networks and the update and iteration of terminal devices, the current protocols, standards and communication solutions are not sufficient to meet the needs of establishing good and secure communication between network devices and terminal devices.

[0077] According to different market demands, it can be divided into n28A and n28B. Specifically, the frequency range of n28A is 703-733MHz for uplink and 758-788MHz for downlink, covering a frequency range of 30MHz for uplink and downlink. The frequency range of n28B is 718-748MHz for uplink and 773-803MHz for downlink, covering a frequency range of 30MHz for uplink and downlink. In the terminal equipment, whether to support the n28A and / or n28B frequency bands needs to be determined based on the working capability of its own duplexer. That is, although the operating frequency range supported by the duplexer is 30MHz, the two duplexers supporting the n28A and n28B frequency bands have different power backoff and spurious requirements. With the reorganization and allocation of the spectrum, some manufacturers have manufactured duplexers covering a frequency range of 40MHz. Therefore, it is possible to use 40MHz of spectrum for uplink and downlink for 5G networks, corresponding to the uplink of 703-743MHz and the downlink of 758-798MHz. In the future, depending on the duplexer capabilities, the frequency range of 5G networks may be further expanded to 703-748 MHz for uplink and 758-803 MHz for downlink.

[0078] However, in the new ecology, the resource scheduling of network equipment still needs to achieve the correspondence between the allocated frequency resources and the frequency range supported by the terminal equipment. The new frequency band scheme, that is, defining new frequency bands, will increase the complexity of frequency resources scheduled by network equipment. At the same time, operators will lose the ecology of the original frequency bands. From the perspective of standards, it is necessary to redefine the frequency bands and specific frequency band indicators based on the frequency bands and terminal working capabilities. Not only is the workload of standards large, but it also brings additional complexity and cost to equipment implementation. In addition, the testing burden of the new standard has also greatly increased, which is not conducive to the development of the industry. Therefore, in the new ecology, how to achieve flexible frequency resource scheduling and meet the needs of establishing good and secure communications between network equipment and terminal equipment is an urgent problem to be solved.

[0079] The following is combined with Figure 3 A brief introduction to the communication system of the terminal equipment is given.

[0080] Figure 3 Schematic diagram of a communication system in a terminal provided in an embodiment of the present application. Figure 3 As shown, the communication system may include an antenna 310, a radio frequency front end 320, a transceiver 330 and a baseband processor 340. Among them:

[0081] Antenna 310 is used to transmit and / or receive radio frequency signals.

[0082] The RF front end 320 is used for filtering and amplifying RF signals. The RF front end 320 may specifically include a power amplifier (PA) 321, a filter 322, a low noise amplifier (LNA) 323, a switch 324, a duplexer 325, etc. The power amplifier 321 may be used for amplifying RF signals at the transmitting end, the filter 322 may be used for filtering transmitted or received signals, and the low noise amplifier 323 may be used for amplifying received signals and reducing noise.

[0083] The transceiver 330 is used to realize the conversion between digital signals and radio frequency signals.

[0084] The baseband processor 340 is used to transmit or receive digital signals. The baseband processor 340 may process digital signals by, for example, modulating and demodulating, encoding and decoding, and channel estimating the digital signals.

[0085] In the above terminal structure, the duplexer 325, also known as the antenna duplexer, is used to isolate the transmitted and received radio frequency signals, thereby preventing the local transmission signal from being transmitted to the receiver, realizing the function of the transmit-receive shared antenna, and ensuring that the received and transmitted signals can work normally at the same time. The duplexer 325 can also be regarded as a relatively special bidirectional three-terminal filter, which is composed of two groups of bandpass filters of different frequencies, a receiving filter and a transmitting filter. That is, the duplexers of different terminals have different operating frequency ranges, which include an uplink operating frequency range and a downlink operating frequency range.

[0086] The processing capability of the baseband processor 340 determines its data processing speed, and therefore the maximum transmission bandwidth is currently mainly determined based on the baseband processor of the terminal device.

[0087] In combination with the communication system of the terminal device, it can be known that the maximum frequency range supported by the duplexer is generally greater than or equal to the maximum transmission bandwidth of the baseband processor, thereby ensuring the normal operation of the entire system. In the current solution for reporting the working capability of the terminal device, the working capability of the terminal device is mainly determined based on the capability of the baseband processor, and the default working frequency range of the duplexer is equal to the frequency range of the defined specific frequency band, without considering that the specific working frequency range of the duplexer may be inconsistent with the frequency range of the frequency band. If the standard is not updated, the allocated frequency resources may not correspond to the frequency range supported by the terminal device.

[0088] In view of this, the present application provides a communication method and device, through which the terminal device reports the supported working frequency range to the network device according to the working capability of its own duplexer, thereby ensuring that the allocated frequency resources correspond to the frequency range supported by the terminal device, realizing flexible frequency resource scheduling of the network device, and meeting the needs of establishing good and secure communication between the network device and the terminal device.

[0089] Figure 4 Schematic diagram of a communication method provided by an embodiment of the present application. Figure 4 As shown, the method includes step S410, step S420 and step S430.

[0090] S410, the terminal device sends first information to the network device, where the first information indicates a first frequency band supported by the terminal device, where the first frequency band includes an uplink frequency band and / or a downlink frequency band; correspondingly, the network device receives the first information.

[0091] The first frequency band may specifically refer to the n28 frequency band or the n83 frequency band, the n28 frequency band includes an uplink frequency band of 703 to 748 MHz and a downlink frequency band of 758 to 803 MHz, and the n83 frequency band includes an uplink frequency band of 703 to 748 MHz.

[0092] S420, the terminal device sends second information to the network device, the second information indicates a working frequency range set, wherein the working frequency range set includes at least one sub-working frequency range, the sub-working frequency range is the working frequency range supported by the terminal device on the first frequency band, and the sub-working frequency range includes an uplink working frequency range and / or a downlink working frequency range; correspondingly, the network device receives the second information.

[0093] The operating frequency range set may specifically be one or more of the following sub-operating frequency ranges:

[0094] (a) The uplink operating frequency range is 703 to 733 MHz and the downlink operating frequency range is 758 to 788 MHz; and / or

[0095] (b) the uplink operating frequency range is 718 to 748 MHz and the downlink operating frequency range is 773 to 803 MHz; and / or

[0096] (c) the uplink operating frequency range is 703 to 743 MHz and the downlink operating frequency range is 758 to 798 MHz; and / or

[0097] (f) The uplink operating frequency range is 703~748MHz, and the downlink operating frequency range is 758~803MHz.

[0098] S430: The network device allocates frequency resources to the terminal device, wherein the frequency resources are determined according to the first information and the second information; correspondingly, the terminal device receives the frequency resources sent from the network device. As a determination method, the frequency resources belong to the first frequency band and belong to the working frequency range set.

[0099] In some implementations, the set of operating frequency ranges indicated by the second information is specifically determined according to the duplexer of the terminal device, so that the terminal device and the network device can transmit the second information to ensure that the frequency resources allocated by the network device to the terminal device correspond to the frequency range supported by the duplexer of the terminal device.

[0100] As an indication method, the second information specifically indicates a duplexer type (duplexerType) of the terminal device, and the duplexer type of the terminal device corresponds to the set of operating frequency ranges. As another indication method, the second information indicates a duplexer capability (duplexerCapability) of the terminal device, and the duplexer capability of the terminal device corresponds to the set of operating frequency ranges.

[0101] In some implementations, the first information and the second information in steps S410 and S420 are sent via terminal device capability information. The terminal capability information may be UECapabilityInformation information. This allows for reuse of some existing signaling, ensures compatibility with existing systems, and avoids additional complexity and cost caused by repeated definition of standards.

[0102] Figure 5 It is a schematic diagram of the division of a set of working frequency ranges provided in an embodiment of the present application. Taking the uplink frequency band 703-748 MHz corresponding to the n28 frequency band as an example, the uplink working frequency range a, uplink working frequency range b, uplink working frequency range c and uplink working frequency range f in the four sub-working frequency ranges mentioned above correspond to different starting frequencies and ending frequencies, respectively, and their bandwidths are different. Through the first information and the second information, it can be ensured that the frequency resources allocated by the network device to the terminal device correspond to the frequency range supported by the terminal device on the frequency band, thereby realizing flexible frequency resource scheduling and meeting the needs of establishing good and secure communication between the network device and the terminal device.

[0103] In some implementations, the terminal device sends third information to the network device, and the third information indicates the maximum transmission bandwidth supported by the terminal device; correspondingly, the network device receives the third information. In the case of receiving the third information, the bandwidth of the frequency resource allocated by the network device is less than or equal to the maximum transmission bandwidth.

[0104] The maximum transmission bandwidth may refer to a specific value, such as 30 MHz, 40 MHz, 45 MHz, etc. Therefore, after the network device determines the actual operating frequency range supported by the terminal device through the first information and the second information, it can schedule frequency resources of a specific bandwidth for the terminal device within the operating frequency range actually supported by the terminal device to establish good communication.

[0105] In some implementations, the third information may be sent via the supported bandwidth field, and the information may be uplink supported bandwidth (channelBWs-UL) information and downlink supported bandwidth (channelBWs-DL) information. In some implementations, the third information may also be directly defined in an existing protocol.

[0106] The following is a detailed description of the embodiments. Figure 4 The communication method shown is described below.

[0107] Step 1: The terminal device sends first information to the network device, and the first information indicates that the terminal device supports the n28 frequency band. The n28 frequency band specifically includes an uplink frequency band of 703-748 MHz and a downlink frequency band of 758-803 MHz. The specific first information can be sent through supported frequency band list (supportedBandList) information.

[0108] Step 2: The terminal device sends second information to the network device, indicating a working frequency range set, wherein the working frequency range set includes at least one sub-working frequency range, and the sub-working frequency range is a working frequency range supported by the terminal device in the first frequency band.

[0109] For example, the second information can be sent through, for example, supported duplexer frequency range (supportedDuplexerRange) information. The second information can be represented in the form of a bitmap. For example, the terminal device and the network device, or with reference to the protocol, predefine a bitmap with a length of 4 bits, starting from the first bit from the left, each bit corresponds to 4 sub-operating frequency ranges [a, b, c, f]. Assuming that the sent bitmap is [0, 0, 0, 1], it means that the terminal device supports the f sub-operating frequency range, that is, the uplink operating frequency range is 703 to 748 MHz, and the downlink operating frequency range is 758 to 803 MHz.

[0110] Step 3: The terminal device sends third information to the network device, where the third information indicates the maximum transmission bandwidth supported by the terminal device.

[0111] The specific third information can be sent through the supported bandwidth field. It is represented in the form of a bitmap. According to the maximum value in the supported bandwidth field, the maximum transmission bandwidth can be determined. For example, the bitmap indicates [0,0,0,1], starting from the first bit from the left, each bit corresponds to [15,20,25,30] MHz bandwidth, which means that the maximum transmission bandwidth supported by the terminal device is 30MHz.

[0112] Therefore, after receiving the first information, the second information and the third information, the network device allocates frequency resources with a maximum bandwidth of 30 MHz to the terminal device from the sub-working frequency range f supported by the terminal device, rather than the entire n28 frequency band, to ensure that the frequency resources allocated by the network device to the terminal device correspond to the frequency range supported by the terminal device.

[0113] The method embodiment of the embodiment of the present application is described above, and the corresponding device embodiment is introduced below. The method embodiment and the device embodiment correspond to each other, so the parts not described in detail can refer to each other.

[0114] Figure 6 6 is a schematic diagram of a terminal device provided in an embodiment of the present application. The terminal device may include a sending module 610 and a processing module 620. Among them:

[0115] The sending module 610 is used to send first information to the network device, where the first information indicates a first frequency band supported by the terminal device, and the first frequency band includes an uplink frequency band and / or a downlink frequency band.

[0116] The first frequency band may specifically refer to the n28 frequency band or the n83 frequency band, the n28 frequency band includes an uplink frequency band of 703 to 748 MHz and a downlink frequency band of 758 to 803 MHz, and the n83 frequency band includes an uplink frequency band of 703 to 748 MHz.

[0117] The sending module 610 is also used to send second information to the network device, where the second information indicates a working frequency range set, wherein the working frequency range set includes at least one sub-working frequency range, the sub-working frequency range is a working frequency range supported by the terminal device on the first frequency band, and the sub-working frequency range includes an uplink working frequency range and / or a downlink working frequency range.

[0118] The operating frequency range set may specifically be one or more of the following sub-operating frequency ranges:

[0119] (a) The uplink operating frequency range is 703 to 733 MHz and the downlink operating frequency range is 758 to 788 MHz; and / or

[0120] (b) the uplink operating frequency range is 718 to 748 MHz and the downlink operating frequency range is 773 to 803 MHz; and / or

[0121] (c) the uplink operating frequency range is 703 to 743 MHz and the downlink operating frequency range is 758 to 798 MHz; and / or

[0122] (f) The uplink operating frequency range is 703~748MHz, and the downlink operating frequency range is 758~803MHz.

[0123] In some implementations, the sending module 610 is further configured to send third information, where the third information indicates a maximum transmission bandwidth supported by the terminal device, wherein the maximum transmission bandwidth may refer to a specific value, such as 30 MHz, 40 MHz, 45 MHz, etc.

[0124] The processing module 620 may be used to configure the first information, the second information and the third information.

[0125] In some implementations, the set of operating frequency ranges indicated by the second information is specifically determined according to the duplexer of the terminal device, so that the terminal device and the network device can transmit the second information to ensure that the frequency resources allocated by the network device to the terminal device correspond to the frequency range supported by the duplexer of the terminal device.

[0126] As an indication method, the second information specifically indicates a duplexer type (duplexerType) of the terminal device, and the duplexer type of the terminal device corresponds to the set of operating frequency ranges. As another indication method, the second information indicates a duplexer capability (duplexerCapability) of the terminal device, and the duplexer capability of the terminal device corresponds to the set of operating frequency ranges.

[0127] In some implementations, the third information may be sent through the supported bandwidth (field, which may include uplink supported bandwidth (channelBWs-UL) information and downlink supported bandwidth (channelBWs-DL) information. In some implementations, the third information may also be directly defined in an existing protocol.

[0128] In some implementations, such as Figure 6 The terminal device shown also includes a receiving module for receiving frequency resources sent from a network device, where the frequency resources belong to a first frequency band and to a working frequency range set.

[0129] When the sending module 610 sends the third information, the bandwidth of the frequency resource is less than or equal to the maximum transmission bandwidth.

[0130] In such Figure 6In the terminal device shown, by sending the second information, it can be ensured that the frequency resources allocated by the network device to the terminal device correspond to the frequency range supported by the terminal device, thereby realizing flexible frequency resource scheduling and meeting the needs of establishing good and secure communication between the network device and the terminal device.

[0131] Figure 7 7 is a schematic diagram of a network device provided in an embodiment of the present application. The network device may include a receiving module 710 and a processing module 720.

[0132] in:

[0133] The receiving module 710 is used to receive first information sent from a terminal device, where the first information indicates a first frequency band supported by the terminal device, where the first frequency band includes an uplink frequency band and / or a downlink frequency band.

[0134] The first frequency band may specifically refer to the n28 frequency band or the n83 frequency band, the n28 frequency band includes an uplink frequency band of 703 to 748 MHz and a downlink frequency band of 758 to 803 MHz, and the n83 frequency band includes an uplink frequency band of 703 to 748 MHz.

[0135] The receiving module 710 is also used to receive second information sent from the terminal device, where the second information indicates a working frequency range set, wherein the working frequency range set includes at least one sub-working frequency range, and the sub-working frequency range is a working frequency range supported by the terminal device on the first frequency band, and the sub-working frequency range includes an uplink working frequency range and / or a downlink working frequency range.

[0136] The operating frequency range set may specifically be one or more of the following sub-operating frequency ranges:

[0137] (a) The uplink operating frequency range is 703 to 733 MHz and the downlink operating frequency range is 758 to 788 MHz; and / or

[0138] (b) the uplink operating frequency range is 718 to 748 MHz and the downlink operating frequency range is 773 to 803 MHz; and / or

[0139] (c) the uplink operating frequency range is 703 to 743 MHz and the downlink operating frequency range is 758 to 798 MHz; and / or

[0140] (f) The uplink operating frequency range is 703~748MHz, and the downlink operating frequency range is 758~803MHz.

[0141] In some implementations, the receiving module 710 is further configured to receive third information sent from the terminal device, where the third information indicates a maximum transmission bandwidth supported by the terminal device.

[0142] The processing module 720 is configured to allocate frequency resources to the terminal device, wherein the frequency resources are determined according to the first information and the second information. As a determination method, the frequency resources belong to the first frequency band and belong to the working frequency range set.

[0143] When receiving the third information, the bandwidth of the frequency resources allocated by the network device is less than or equal to the maximum transmission bandwidth.

[0144] Figure 8 It is a system diagram of a terminal device and a network device provided in an embodiment of the present application.

[0145] The terminal device includes at least one processor 801 and at least one transceiver 803. Optionally, the terminal device may further include at least one memory 802, at least one output device 804 or at least one input device 805.

[0146] The processor 801, the memory 802 and the transceiver 803 are connected via a communication line. The communication line may include a path to transmit information between the above components.

[0147] The processor 801 may be a general-purpose central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. A general-purpose processor may be a microprocessor or any conventional processor. In a specific implementation, as an embodiment, the processor 801 may also include multiple CPUs, and the processor 801 may be a single-core processor or a multi-core processor. The processor here may refer to one or more devices, circuits or processing cores for processing data.

[0148] The memory 802 may be a device with a storage function. For example, it may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM) or other types of dynamic storage devices that can store information and instructions, or a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed optical disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto. The memory 802 may exist independently and be connected to the processor 801 via a communication line. The memory 802 may also be integrated with the processor 801.

[0149] The memory 802 is used to store computer-executable instructions for executing the solution of the present application, and the execution is controlled by the processor 801. Specifically, the processor 801 is used to execute the computer-executable instructions stored in the memory 802, thereby implementing the frequency resource scheduling described in the embodiment of the present application.

[0150] Alternatively, optionally, in an embodiment of the present application, the processor 801 may also perform functions related to the processing of frequency resource scheduling provided in the following embodiments of the present application, and the transceiver 803 is responsible for communicating with other devices or communication networks, which is not specifically limited in the embodiments of the present application.

[0151] Optionally, the computer-executable instructions in the embodiments of the present application may also be referred to as application code or computer program code, which is not specifically limited in the embodiments of the present application.

[0152] The transceiver 803 may be any transceiver-like device for communicating with other devices or communication networks, such as Ethernet, RAN, or wireless local area networks (WLAN), etc. The transceiver 803 includes a transmitter (Tx) and a receiver (Rx).

[0153] The output device 804 communicates with the processor 801 and can display information in a variety of ways. For example, the output device 804 can be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector.

[0154] The input device 805 communicates with the processor 801 and can accept user input in a variety of ways. For example, the input device 505 can be a mouse, a keyboard, a touch screen device, or a sensor device.

[0155] The network device includes at least one processor 901, at least one transceiver 903 and at least one network interface 904. Optionally, the network device may also include at least one memory 902. The processor 901, the memory 902, the transceiver 903 and the network interface 904 are connected via a communication line. The network interface 904 is used to connect to the core network device via a link (e.g., an S1 interface), or to connect to the network interface of other network devices via a wired or wireless link (e.g., an X2 interface). Figure 8 In addition, the description of the processor 901, the memory 902 and the transceiver 903 can refer to the description of the processor 901, the memory 902 and the transceiver 903 in the terminal device, which will not be repeated here.

[0156] In addition, an embodiment of the present application also provides a chip, which obtains instructions and executes the instructions to implement the above method.

[0157] Optionally, as an implementation manner, the chip includes a processor and a communication interface, and the processor reads instructions stored in the memory through the communication interface to execute the above method.

[0158] Optionally, as an implementation manner, the chip may further include a memory, in which instructions are stored, and the processor is used to execute the instructions stored in the memory. When the instructions are executed, the processor is used to execute the above method.

[0159] An embodiment of the present application also provides a computer-readable storage medium, which stores instructions, and the instructions are used in the method in the above method embodiment.

[0160] The embodiment of the present application also provides a computer program product including instructions, wherein the instructions are used to implement the method in the above method embodiment.

[0161] The terms "component", "module", "system", etc. used in this specification are used to represent computer-related entities, hardware, firmware, a combination of hardware and software, software, or software in execution. For example, a component can be, but is not limited to, a process running on a processor, a processor, an object, an executable file, an execution thread, a program and / or a computer. By way of illustration, both applications running on a computing device and a computing device can be components. One or more components may reside in a process and / or an execution thread, and a component may be located on a computer and / or distributed between two or more computers. In addition, these components may be executed from various computer-readable media having various data structures stored thereon. Components may, for example, communicate through local and / or remote processes according to signals having one or more data packets (e.g., data from two components interacting with another component between a local system, a distributed system and / or a network, such as the Internet interacting with other systems through signals).

[0162] 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.

[0163] 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.

[0164] 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.

[0165] 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.

[0166] 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.

[0167] 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, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, server, or 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 USB flash drives, mobile hard drives, ROM, RAM, magnetic disks, or optical disks.

[0168] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present 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 communication method, characterized in that: include: Sending first information to the network device, where the first information indicates a first frequency band supported by the terminal device, where the first frequency band includes an uplink frequency band and / or a downlink frequency band; Sending second information to the network device, where the second information indicates a set of operating frequency ranges, where the set of operating frequency ranges includes at least one sub-operating frequency range, where the sub-operating frequency range is an operating frequency range supported by the terminal device on the first frequency band, and where the sub-operating frequency range includes an uplink operating frequency range and / or a downlink operating frequency range; wherein: The uplink frequency band is 703-748 MHz, and the downlink frequency band is 758-803 MHz; The uplink operating frequency range is 703-733 MHz, and the downlink operating frequency range is 758-788 MHz; and / or The uplink operating frequency range is 718-748 MHz, and the downlink operating frequency range is 773-803 MHz; and / or The uplink operating frequency range is 703-743 MHz, and the downlink operating frequency range is 758-798 MHz; and / or The uplink operating frequency range is 703-748 MHz, and the downlink operating frequency range is 758-803 MHz.

2. The method according to claim 1, characterized in that The second information is determined according to a duplexer of the terminal device.

3. The method according to claim 1 or 2, characterized in that: in: The second information indicates a duplexer type of the terminal device, and the duplexer type of the terminal device corresponds to the operating frequency range set; or The second information indicates a duplexer capability of the terminal device, and the duplexer capability of the terminal device corresponds to the set of operating frequency ranges.

4. The method according to any one of claims 1 to 3, characterized in that The method further comprises: Receive frequency resources allocated by the network device, where the frequency resources belong to the first frequency band and to the working frequency range set.

5. The method according to claim 4, characterized in that The method further comprises: Sending third information to the network device, wherein the third information indicates a maximum transmission bandwidth supported by the terminal device; The bandwidth of the frequency resource is less than or equal to the maximum transmission bandwidth.

6. The method according to any one of claims 1 to 5, characterized in that The first information and the second information are sent via terminal device capability information.

7. A communication method, characterized in that: include: Receiving first information sent from a terminal device, where the first information indicates a first frequency band supported by the terminal device, where the first frequency band includes an uplink frequency band and / or a downlink frequency band; receiving second information sent from the terminal device, where the second information indicates an operating frequency range set, wherein the operating frequency range set includes at least one sub-operating frequency range, the sub-operating frequency range is an operating frequency range supported by the terminal device on the first frequency band, and the sub-operating frequency range includes an uplink operating frequency range and / or a downlink operating frequency range; Allocate frequency resources for the terminal device, where the frequency resources are determined according to the first information and the second information; The uplink frequency band is 703-748 MHz, and the downlink frequency band is 758-803 MHz; The uplink operating frequency range is 703-733 MHz, and the downlink operating frequency range is 758-788 MHz; and / or The uplink operating frequency range is 718-748 MHz, and the downlink operating frequency range is 773-803 MHz; and / or The uplink operating frequency range is 703-743 MHz, and the downlink operating frequency range is 758-798 MHz; and / or The uplink operating frequency range is 703-748 MHz, and the downlink operating frequency range is 758-803 MHz.

8. The method according to claim 7, characterized in that The second information is determined according to a duplexer of the terminal device.

9. The method according to claim 7 or 8, characterized in that: in: The second information indicates a duplexer type of the terminal device, and the duplexer type of the terminal device corresponds to the operating frequency range set; or The second information indicates a duplexer capability of the terminal device, and the duplexer capability of the terminal device corresponds to a set of operating frequency ranges.

10. The method according to any one of claims 7 to 9, characterized in that The frequency resource belongs to the first frequency band and to the working frequency range set.

11. The method according to any one of claims 7 to 10, characterized in that The method further comprises: receiving third information sent from the terminal device, wherein the third information indicates a maximum transmission bandwidth supported by the terminal device; The bandwidth of the frequency resource is less than or equal to the maximum transmission bandwidth.

12. The method according to any one of claims 7 to 11, characterized in that The first information and the second information are received via terminal device capability information.

13. A terminal device, characterized in that: include: A sending module, configured to send first information to a network device, where the first information indicates a first frequency band supported by the terminal device, where the first frequency band includes an uplink frequency band and / or a downlink frequency band; The sending module is further used to send second information to the network device, where the second information indicates a working frequency range set, wherein the working frequency range set includes at least one sub-working frequency range, the sub-working frequency range is a working frequency range supported by the terminal device on the first frequency band, and the sub-working frequency range includes an uplink working frequency range and / or a downlink working frequency range; The uplink frequency band is 703-748 MHz, and the downlink frequency band is 758-803 MHz; The uplink operating frequency range is 703-733 MHz, and the downlink operating frequency range is 758-788 MHz; and / or The uplink operating frequency range is 718-748 MHz, and the downlink operating frequency range is 773-803 MHz; and / or The uplink operating frequency range is 703-743 MHz, and the downlink operating frequency range is 758-798 MHz; and / or The uplink operating frequency range is 703-748 MHz, and the downlink operating frequency range is 758-803 MHz.

14. The terminal device according to claim 13, characterized in that: The second information is determined according to a duplexer of the terminal device.

15. The terminal device according to claim 13 or 14, characterized in that: in: The second information indicates a duplexer type of the terminal device, and the duplexer type of the terminal device corresponds to the operating frequency range set; or The second information indicates a duplexer capability of the terminal device, and the duplexer capability of the terminal device corresponds to the set of operating frequency ranges.

16. The terminal device according to any one of claims 13 to 15, characterized in that: The terminal device also includes a receiving module: The receiving module is used to receive frequency resources sent from the network device, where the frequency resources belong to the first frequency band and to the working frequency range set.

17. The terminal device according to any one of claims 16, characterized in that: The sending module is further used to send third information to the network device, where the third information indicates a maximum transmission bandwidth supported by the terminal device, wherein the bandwidth of the frequency resource is less than or equal to the maximum transmission bandwidth.

18. The terminal device according to any one of claims 13 to 17, characterized in that: The sending module sends the first information and the second information through terminal device capability information.

19. A network device, characterized in that: include: A receiving module, configured to receive first information, where the first information indicates a first frequency band supported by the terminal device, where the first frequency band includes an uplink frequency band and / or a downlink frequency band; The receiving module is further used to receive second information sent from the terminal device, where the second information indicates a working frequency range set, wherein the working frequency range set includes at least one sub-working frequency range, the sub-working frequency range is a working frequency range supported by the terminal device on the first frequency band, and the sub-working frequency range includes an uplink working frequency range and / or a downlink working frequency range; a processing module, configured to allocate frequency resources to the terminal device, wherein the frequency resources are determined according to the first information and the second information; The uplink frequency band is 703-748 MHz, and the downlink frequency band is 758-803 MHz; The uplink operating frequency range is 703-733 MHz, and the downlink operating frequency range is 758-788 MHz; and / or The uplink operating frequency range is 718-748 MHz, and the downlink operating frequency range is 773-803 MHz; and / or The uplink operating frequency range is 703-743 MHz, and the downlink operating frequency range is 758-798 MHz; and / or The uplink operating frequency range is 703-748 MHz, and the downlink operating frequency range is 758-803 MHz.

20. The network device according to claim 19, characterized in that: The second information is determined according to a duplexer of the terminal device.

21. The network device according to claim 19 or 20, characterized in that: in: The second information indicates a duplexer type of the terminal device, and the duplexer type of the terminal device corresponds to the operating frequency range set; or The second information indicates a duplexer capability of the terminal device, and the duplexer capability of the terminal device corresponds to a set of operating frequency ranges.

22. The network device according to any one of claims 19 to 21, characterized in that: The frequency resource belongs to the first frequency band and to the working frequency range set.

23. The network device according to any one of claims 19 to 22, characterized in that: The receiving module is further configured to receive third information sent from the terminal device, wherein the third information indicates a maximum transmission bandwidth supported by the terminal device; The bandwidth of the frequency resource is less than or equal to the maximum transmission bandwidth.

24. The network device according to any one of claims 19 to 23, characterized in that: The receiving module receives the first information and the second information through the terminal device capability information.

25. A chip, characterized in that: The chip comprises a processor, the processor is coupled to a memory, the memory is used to store a computer program, and the processor is used to execute the computer program stored in the memory, so that the chip executes the method according to any one of claims 1 to 12.

26. A computer-readable storage medium, characterized in that: The storage medium stores a computer program or instruction. When the computer program or instruction is executed by a processor, the method according to any one of claims 1 to 12 is implemented.

27. A computer product, characterized in that: When it is run on a computer, the method according to any one of claims 1 to 12 is executed.

28. A communication system, characterized in that: The method comprises a terminal device and a network device, wherein the terminal device is used to execute the method according to any one of claims 1 to 6, and the network device is used to execute the method according to any one of claims 7 to 12.

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