WO2020181441A1

WO2020181441A1 - Communication method, device and system

Info

Publication number: WO2020181441A1
Application number: PCT/CN2019/077569
Authority: WO
Inventors: 罗之虎; 毕文平; 金哲; 程型清; 米翔; 苏俞婉
Original assignee: 华为技术有限公司
Priority date: 2019-03-08
Filing date: 2019-03-08
Publication date: 2020-09-17
Also published as: CN113261320A; CN113261320B

Abstract

Provided in embodiments of the present application are a communication method, device and system, which may flexibly support loT applications having different requirements. The method comprises: a first device receiving configuration information on a first carrier, and, according to the configuration information, determining frequency domain resources corresponding to a second carrier; and receiving and transmitting data or signaling on the second carrier. The second carrier satisfies one or more of the following characteristics: a first reference signal carried on the second carrier and a second reference signal carried on the first carrier have different characteristics; modulating modes for data or signaling corresponding to the second carrier and the first carrier are different; coding modes for data or signaling corresponding to the second carrier and the first carrier are different; frame structures or duplex modes corresponding to the second carrier and the first carrier are different; the maximum number of repetitions supported by the second carrier and the first carrier are different; power control parameters or power control modes on the second carrier and the first carrier are different; or, paging discontinuous reception cycles on the second carrier and the first carrier are different.

Description

Communication method, device and system

Technical field

This application relates to the field of communication technology, in particular to communication methods, devices and systems.

Background technique

The Internet of Things (IoT) is the "Internet of Things". It extends the user end of the Internet to any item and item, enabling information exchange and communication between any item and item. This communication method is also called machine type communications (MTC). Among them, the communication node is called MTC terminal or MTC device. Typical IoT applications include smart grids, smart agriculture, smart transportation, smart homes, and environmental detection.

Low power wide area (LPWA) refers to a low-power wide area network. LPWA has the three characteristics of long-distance communication, low-rate data transmission and low power consumption, so it is very suitable for those who transmit and communicate data over long distances. Low-volume IoT applications that require battery power for long-term operation. Among them, narrowband internet of things (NB-IoT) and enhanced machine type communication (eMTC) are typical IoT technologies for LPWA.

However, IoT technology is now widely used. In addition to LPWA's IoT applications, there are also some services that LPWA's IoT applications cannot satisfy, such as high-speed services, high-reliability and low-latency services, and real-time tracking services.

Summary of the invention

The embodiments of the present application provide communication methods, devices, and systems, which can flexibly support IoT applications with different requirements.

In order to achieve the foregoing objectives, the embodiments of the present application adopt the following technical solutions:

In a first aspect, a communication method is provided, the method includes: a first device receives configuration information from a second device on a first carrier; the first device determines a frequency domain resource corresponding to the second carrier according to the configuration information ; The first device receives data or the signaling on the second carrier; and/or, the first device transmits data or signaling on the second carrier; wherein, the second carrier satisfies one of the following characteristics One or more items: the first reference signal carried on the second carrier has different characteristics from the second reference signal carried on the first carrier; or, the modulation mode of the data or signaling corresponding to the second carrier is different from that of the second carrier The modulation mode of data or signaling corresponding to one carrier is different; or, the coding mode of data or signaling corresponding to the second carrier is different from the coding mode of data or signaling corresponding to the first carrier; or, the second carrier The corresponding frame structure is different from the frame structure corresponding to the first carrier; or, the duplex mode corresponding to the second carrier is different from the duplex mode corresponding to the first carrier; or, the maximum number of repetitions supported by the second carrier is different from The maximum number of repetitions supported by the first carrier is different; or, the power control parameter on the second carrier is different from the power control parameter on the first carrier; or, the power control method on the second carrier is different from that on the first carrier. The power control mode is different; or, the paging discontinuous reception period on the second carrier is different from the paging discontinuous reception period on the first carrier. Based on this solution, since the second carrier satisfies one or more of the above characteristics, it can flexibly support IoT applications with different requirements. For analysis of related technical effects, please refer to the description in the subsequent method embodiments, which will not be repeated here.

In a possible design, the method further includes: the first device receives instruction information from the second device, the instruction information is used to indicate the time and frequency that is allowed to be used by the third device but cannot be used by the first device Resources, where the second carrier supports the configuration of the time-frequency resources, the third device and the first device have different types, and/or the third device and the first device support different capabilities. Since the second carrier can also support the configuration of time-frequency resources that are allowed to be used by the third device but cannot be used by the first device, it can be used for forward compatibility. Among them, assuming that the first device is a terminal device and the second device is a network device, forward compatibility can be understood as supporting the configuration of time-frequency resources that cannot be used by the current version of the network device on the second carrier. These time-frequency resources can be used Use in the subsequent evolution version of network equipment to ensure that the stock terminal equipment can access the network.

In a possible design, the method further includes: the first device receives a first synchronization signal, a paging message, a paging random access response message, and a user equipment UE from the second device on the second carrier. Apply for one or more of system information or multicast messages.

In a possible design, the characteristics of the first synchronization signal and the second synchronization signal carried on the first carrier are different. Since in the embodiment of the present application, the second device can send synchronization signals to the first device on different carriers of the same communication system, the synchronization performance of the system can be improved.

In a possible design, the characteristics of the first synchronization signal and the second synchronization signal carried on the first carrier are different, including: the sequence of the synchronization signal, the resource mapping position of the synchronization signal, and the step size of the synchronization signal search Or one or more of the types of synchronization signals are different.

In a possible design, the method further includes: the first device sends one or more of a random access preamble, a sounding reference signal, or a demodulation reference signal to the second device on the second carrier, Wherein, the random access preamble is different from the random access preamble carried on the first carrier; the sounding reference signal is different from the sounding reference signal carried on the first carrier; the demodulation reference signal is different from the first carrier The demodulation reference signal carried on it is different.

In a possible design, the method further includes: the first device receives downlink control information DCI from the second device on the first carrier or on the second carrier; and the first device according to the second carrier The bandwidth determines the number of bits occupied by the resource allocation field in the DCI.

In a second aspect, a communication method is provided. The method includes: a second device determines a frequency domain resource corresponding to a second carrier, and the second device sends configuration information to the first device on the first carrier, and the configuration information is used to determine The frequency domain resource corresponding to the second carrier, the second device sends data or the signaling on the second carrier; and/or, the second device receives data or signaling on the second carrier; wherein, the second device The second carrier meets one or more of the following characteristics: the first reference signal carried on the second carrier has different characteristics from the second reference signal carried on the first carrier; or, the data corresponding to the second carrier or The modulation mode of signaling is different from the modulation mode of data or signaling corresponding to the first carrier; or, the coding mode of data or signaling corresponding to the second carrier is different from the coding mode of data or signaling corresponding to the first carrier. Different; or, the frame structure corresponding to the second carrier is different from the frame structure corresponding to the first carrier; or, the duplex mode corresponding to the second carrier is different from the duplex mode corresponding to the first carrier; or, the first carrier The maximum number of repetitions supported by the second carrier is different from the maximum number of repetitions supported by the first carrier; or, the power control parameter on the second carrier is different from the power control parameter on the first carrier; or, the The power control mode is different from the power control mode on the first carrier; or, the paging discontinuous reception period on the second carrier is different from the paging discontinuous reception period on the first carrier. Among them, the technical effects brought about by the second aspect can be referred to the technical effects brought about by the above-mentioned first aspect, which will not be repeated here.

In a possible design, the method further includes: the second device sends instruction information to the first device, the instruction information is used to indicate time-frequency resources that are allowed to be used by the third device but cannot be used by the first device , Wherein the second carrier supports the configuration of the time-frequency resource, the third device and the first device have different categories, and/or the capabilities supported by the third device and the first device are different.

In a possible design, the method further includes: the second device sending a first synchronization signal, a paging message, a paging random access response message, and a user equipment UE application to the first device on the second carrier One or more of system information or multicast messages.

In a possible design, the characteristics of the first synchronization signal and the second synchronization signal carried on the first carrier are different.

In a possible design, the method further includes: the second device receives one or more of a random access preamble, a sounding reference signal, or a demodulation reference signal from the first device on the second carrier , Wherein the random access preamble is different from the random access preamble carried on the first carrier; the sounding reference signal is different from the sounding reference signal carried on the first carrier; the demodulation reference signal is different from the first carrier The demodulation reference signal carried on the carrier is different.

In a possible design, the method further includes: the second device sends downlink control information DCI to the first device on the first carrier or on the second carrier, wherein the resource allocation field in the DCI occupies The number of bits is determined according to the bandwidth of the second carrier.

Among them, the technical effects brought about by any of the design methods in the second aspect can be referred to the technical effects brought about by the different design methods in the first aspect, which will not be repeated here.

With reference to the first aspect or the second aspect, in a possible design, the second carrier also satisfies the following characteristics: the difference between the bandwidth of the second carrier and the bandwidth of the first carrier is greater than the set value, and the set The fixed value is a value greater than or equal to 0.

With reference to the first aspect or the second aspect, in a possible design, the first reference signal carried on the second carrier has different characteristics from the second reference signal carried on the first carrier, including: One or more of the sequence, the manner of generating the sequence of the reference signal, the resource mapping position of the reference signal, the maximum number of ports occupied by the reference signal transmission, the period of the reference signal, or the type of the reference signal is different.

Exemplarily, the maximum number of ports occupied by the second reference signal transmission carried on the first carrier may be 2, and the maximum number of ports occupied by the first reference signal transmission carried on the second carrier is greater than 2, so that more antennas can be realized Transmit diversity or receive diversity can improve downlink or uplink performance to meet IoT applications with higher coverage performance requirements. At the same time, space division multiplexing can increase system capacity and support more connections.

Or, for example, the period of the second reference signal carried on the first carrier may be T1, and the period of the first reference signal carried on the second carrier may be T2, and T1 and T2 are different, so that the resource allocation of the reference signal More flexible.

Or, for example, the type of the second reference signal carried on the first carrier is a permanently online common reference signal, and the type of the first reference signal carried on the second carrier is an on-demand reference signal, that is, when there is data scheduling The reference signal is sent, and the reference signal is not sent when there is no data scheduling, so that the power consumption of the second device can be saved, and the IoT application that requires lower power consumption on the second device side can be met.

Or, exemplarily, by designing that the resource mapping positions of the first reference signal carried on the second carrier and the second reference signal carried on the first carrier are different, resource allocation can be made more flexible.

Or, exemplarily, the first carrier can be designed to support common reference signal demodulation, and the second carrier can support dedicated demodulation reference signal demodulation, thereby making reference signal transmission and resource allocation more flexible.

With reference to the foregoing first aspect or second aspect, in a possible design, the category of the first device is different from the category of the fourth device, wherein the fourth device is a device that does not have the ability to receive the configuration information.

With reference to the first aspect or the second aspect, in a possible design, the first carrier and the second carrier are the carriers of the first communication system, and the first carrier and the second carrier are the carriers of the second communication system. Bandwidth part BWP.

With reference to the first aspect or the second aspect, in a possible design, the first carrier is an anchor carrier of the first communication system, and the second carrier is a non-anchor carrier of the first communication system;

With reference to the first aspect or the second aspect, in a possible design, the first carrier is an anchor narrowband of the first communication system, and the second carrier is a non-anchor narrowband of the first communication system.

In the third aspect, a communication device is provided for implementing the above-mentioned various methods. The communication device may be the first device in the first aspect described above, or a device including the first device described above; or, the communication device may be the second device in the second aspect described above, or a device including the second device described above. The communication device includes a module, unit, or means corresponding to the foregoing method, and the module, unit, or means can be implemented by hardware, software, or hardware execution of corresponding software. The hardware or software includes one or more modules or units corresponding to the above-mentioned functions.

In a fourth aspect, a communication device is provided, including: a processor and a memory; the memory is used to store computer instructions, and when the processor executes the instructions, the communication device executes the method described in any of the above aspects. The communication device may be the first device in the first aspect described above, or a device including the first device described above; or, the communication device may be the second device in the second aspect described above, or a device including the second device described above.

In a fifth aspect, a communication device is provided, including: a processor; the processor is configured to couple with a memory, and after reading an instruction in the memory, execute the method according to any of the foregoing aspects according to the instruction. The communication device may be the first device in the first aspect described above, or a device including the first device described above; or, the communication device may be the second device in the second aspect described above, or a device including the second device described above.

In a sixth aspect, a computer-readable storage medium is provided, and the computer-readable storage medium stores instructions that, when run on a computer, enable the computer to execute the method described in any of the above aspects.

In a seventh aspect, a computer program product containing instructions is provided, which when running on a computer, enables the computer to execute the method described in any of the above aspects.

In an eighth aspect, a communication device (for example, the communication device may be a chip or a chip system) is provided, and the communication device includes a processor for implementing the functions involved in any of the foregoing aspects. In a possible design, the communication device further includes a memory for storing necessary program instructions and data. When the communication device is a chip system, it may be composed of chips, or may include chips and other discrete devices.

Among them, the technical effects brought by any one of the design methods of the third aspect to the eighth aspect can be referred to the technical effects brought about by the different design methods in the first aspect or the second aspect, which will not be repeated here.

In a ninth aspect, a communication system is provided, which includes the first device described in the foregoing aspect and the second device described in the foregoing aspect.

Description of the drawings

Figure 1a is a schematic diagram of a terminal device with a small bandwidth capability provided in the prior art accessing a large bandwidth network;

Figure 1b is a schematic diagram of a terminal device provided by the prior art switching between large and small BWPs;

2 is a schematic diagram of the architecture of a communication system provided by an embodiment of this application;

FIG. 3 is a schematic structural diagram of a terminal device and a network device provided by an embodiment of the application;

4 is a schematic diagram of another structure of a terminal device provided by an embodiment of the application;

FIG. 5 is a schematic flowchart of a communication method provided by an embodiment of this application;

FIG. 6 is a schematic diagram of the bandwidth of the NB-IoT system and the NR system provided by an embodiment of the application;

FIG. 7 is a schematic diagram of the type of the second reference signal carried on the first carrier and the type of the second reference signal carried on the first carrier according to an embodiment of the application;

FIG. 8 is a schematic diagram of the resource mapping position of the second reference signal carried on the first carrier and the resource mapping position of the first reference signal carried on the second carrier according to an embodiment of the application;

9 is a schematic diagram 1 of the bandwidth of the second carrier and the bandwidth of the first carrier provided by an embodiment of the application;

10 is a second schematic diagram of the bandwidth of the second carrier and the bandwidth of the first carrier provided by an embodiment of this application;

FIG. 11 is a schematic structural diagram of a first device provided by an embodiment of this application;

FIG. 12 is a schematic structural diagram of a second device provided by an embodiment of the application.

detailed description

In order to facilitate the understanding of the technical solutions of the embodiments of the present application, first, a brief introduction of related technologies or terms in the present application is given as follows.

First, NB-IoT:

With the development of IoT technology, IoT needs to be applied in a variety of scenarios, such as from outdoor to indoor, from above ground to underground, which puts many special requirements on the design of the Internet of Things. For example, because MTC terminals in certain scenarios are used in environments with poor coverage, such as electricity meters and water meters, which are usually installed indoors or even basements and other places with poor wireless network signals, coverage enhancement technologies are needed to solve them. Or, because the number of MTC terminals in some scenarios is far greater than the number of devices for human-to-human communication, that is to say, large-scale deployment is required, so it is required to obtain and use MTC terminals at a very low cost. Or, because the data packets transmitted by the MTC terminal in some scenarios are very small and are not sensitive to delay, it is required to support a low-rate MTC terminal. Or, because in most cases, MTC terminals are powered by batteries, but at the same time in many scenarios, MTC terminals are required to be able to be used for more than ten years without replacing batteries, which requires MTC terminals to be able to operate at a very low cost. Power consumption to work.

In order to meet the above requirements, the 3rd generation partnership project (3GPP) of the Mobile Communications Standards Organization adopted a new research topic at the #62 Plenary Session of Radio Access Network (RAN) to study A method to support extremely low complexity and low cost Internet of Things in cellular networks, and was established as an NB-IoT topic at the RAN#69 meeting.

Second, eMTC:

At present, the fourth-generation communication system—long term evolution-advanced (LTE-A) will continue to provide wireless communication services for its user equipment (UE) in the short term (or even long term). In particular, the eMTC system and the future eMTC (further eMTC, FeMTC), and even further eMTC (even further eMTC, eFeMTC), or other MTC (additional MTC, AMTC) and other evolution systems are systems derived from LTE . These derivative systems work in the LTE system and in the LTE frequency band. In order to save power consumption and reduce costs, the working bandwidth of the terminal device in the eMTC system may generally be small, which is smaller than the working bandwidth of the terminal device in the LTE system. For example, the working bandwidth of a terminal device in an eMTC system may be an NB, an NB includes 6 consecutive physical resource blocks (PRB), and a PRB includes 12 sub-carriers (SC). In terms of downlink (DL) transmission, the eMTC system uses the cell-specific reference signal (CRS), primary synchronization signal (PSS), and secondary synchronization signal (PSS) in the LTE system. , SSS), physical broadcast channel (physical broadcast channel, PBCH), and system information block 1 (system information blocks1-bandwidth reduced, SIB1-BR) that carries important system information with reduced bandwidth. Among them, the eMTC system has been deployed for commercial use. Due to its low power consumption, long sleep and other characteristics, the battery life of the terminal equipment in the eMTC system is relatively long, which is expected to reach about 10 years.

Third, the terminal category:

The NB-IoT definition currently supports two types of terminal devices, namely category (category) NB1 and category (category) NB2 terminal devices. For a specific description, please refer to 3GPP technical standard (TS) 36.306, which will not be repeated here. Among them, the downlink physical layer parameters of the terminal devices of category NB1 and category NB2 are shown in Table 1 below, and the uplink physical layer parameters of the terminal devices of category NB1 and category NB2 are shown in Table 2 below.

As can be seen from Table 1, for category NB1 terminal equipment, the maximum number of downlink shared channel (DL-SCH) transmission blocks received in a transmission time interval (transmission time interval, TTI) is 680. In a TTI The maximum number of bits of a DL-SCH transport block received in one TTI is 680, and the total number of soft channel bits (total number of soft channel bits) is 2112; for category NB2 terminal equipment, the maximum number of DL-SCH transport blocks received in one TTI The number of bits is 2536, the maximum number of bits of a DL-SCH transport block received in one TTI is 2536, and the total number of soft channel bits is 6400. Among them, the total number of soft channel bits here refers to the total number of soft channel bits that can be used for hybrid automatic repeat request (HARQ) processing. This value does not include the dedicated broadcast HARQ process required for decoding system information The number of soft channel bits. For downlink transmission, the total number of soft channel bits limits the HARQ buffer size of the terminal device.

As can be seen from Table 2, for category NB1 terminal equipment, the maximum number of uplink shared channel (DL-SCH) transmission blocks received in one TTI is 1000, and one UL-SCH transmission block received in one TTI The maximum number of bits is 1000; for category NB2 terminal equipment, the maximum number of UL-SCH transport blocks received in one TTI is 2536, and the maximum number of UL-SCH transport blocks received in one TTI is 2536.

Table I

Table II

Fourth, the bandwidth part (BWP):

BWP is a new concept proposed in the (new radio, NR) standard. It is a continuous bandwidth resource configured by the network side for the terminal device, which can realize the flexible configuration of the transmission bandwidth on the network side and the terminal device side. BWP is a concept of terminal device level. Different terminal devices can be configured with different BWPs. The terminal device does not need to know the transmission bandwidth on the network side, but only needs to support the BWP configured to the terminal device.

Among them, one of the application scenarios of BWP is to connect terminal devices with small bandwidth capabilities to a large bandwidth network; as shown in Figure 1a. Another application scenario of BWP is that terminal devices switch between large and small BWPs to achieve power saving effects, as shown in Figure 1b.

In addition, in the embodiments of the present application, the BWP configured when the terminal device is initially accessed is called an initial BWP (initial BWP). The BWP configured in the radio resource control (Radio Resource Control, RRC) connection state is called a dedicated BWP (dedicated BWP), where one or more dedicated BWPs can be configured. The BWP activated by the terminal device at a certain moment in the RRC connected state is called an active BWP (active BWP), and the active BWP is a BWP in the dedicated BWP. When a terminal device activates a BWP at a certain moment in the RRC connection state, it can start a BWP inactivity timer (inactivity timer), when the BWP inactivity timer expires, the terminal device returns to a default BWP (default BWP) , The default BWP is one of the dedicated BWPs.

Fifth, terminal coverage enhancement mode

In the eMTC system, there are two coverage enhancement modes for terminal equipment, namely coverage enhancement (coverage enhancement, CE) mode A (mode A) and CE mode B (mode B). Among them, CE mode A corresponds to no repetition or less repetition, and CE mode B corresponds to greater repetition. Under frequency division duplexing (FDD), the maximum number of HARQ processes supported by CE mode A is 8, and the maximum number of HARQ processes supported by CE mode B is 2.

Sixth, anchor carrier and non-anchor carrier:

In the embodiments of this application, the anchor carrier refers to the carrier on which the terminal device assumes the second synchronization signal is transmitted; or the anchor carrier refers to the carrier occupied by the terminal device to perform the initial connection establishment process or initiate the connection re-establishment process, or The carrier indicated as the anchor carrier during the handover.

In the embodiments of this application, a non-anchor carrier refers to a carrier on which the terminal device assumes no second synchronization signal transmission; or a non-anchor carrier refers to a carrier that can be configured when establishing an RRC connection and can be used to provide additional radio resources Carrier.

Wherein, the second synchronization signal in the embodiment of the present application is a synchronization signal that can be received by a legacy terminal device. Existing terminal equipment should be understood as the terminal equipment of release 16, release 15, release 14, or release 13 for the NB-IoT system; for the eMTC system, it should be understood as the terminal equipment of release 16, release 15, release 14, release 13, or release 12; The LTE system should be understood as release 16, release 15, release 14, release 13, release 12, release 11, release 10, release 9 or release 8 terminal equipment; for the NR system, it should be understood as release 16 or release 15 terminal equipment.

Seventh, narrowband and broadband:

In the eMTC system, narrowband refers to 6 non-overlapping physical resource blocks in the frequency domain. Wideband refers to 4 non-overlapping narrowbands in the frequency domain. Here, the physical resource block occupies 12 consecutive subcarriers in the frequency domain. Among them, the number of narrowbands and broadband within a given system bandwidth and the indexing method can refer to Section 5.2.4 and Section 6.2.7 of 3GPP TS 36.211, which will not be repeated here.

Eighth, the anchor point narrowband and the non-anchor point narrowband:

In the embodiments of this application, the anchor narrowband refers to the narrowband where the terminal device assumes the second synchronization signal is transmitted; or the anchor narrowband refers to the narrowband occupied by the terminal device during the initial connection establishment process or initiating the connection re-establishment process, or The narrowband indicated as the anchor point narrowband during the switching process.

In the embodiments of this application, the non-anchor narrowband refers to the narrowband where the terminal device assumes no second synchronization signal transmission; or the non-anchor narrowband refers to the narrowband that can be configured when establishing an RRC connection and can be used to provide additional radio resources The narrow band.

For the related description of the second synchronization signal, please refer to the introduction part of the anchor carrier and the non-anchor carrier, which will not be repeated here.

Ninth, anchor broadband and non-anchor broadband:

In the embodiments of the present application, the anchor broadband refers to the broadband that the terminal device assumes that the second synchronization signal is transmitted; or the anchor broadband refers to the broadband occupied by the terminal device to perform the initial connection establishment process or initiate the connection re-establishment process, or The broadband indicated as the anchor point width during the switching process.

In the embodiments of this application, non-anchor broadband refers to the broadband where the terminal device assumes no second synchronization signal transmission; or non-anchor broadband refers to the broadband that can be configured when establishing an RRC connection and can be used to provide additional wireless resources Broadband.

Tenth, downlink control information (DCI):

The DCI includes a scheduling delay field used to indicate the starting position of a narrowband physical uplink shared channel (NPUSCH), a resource allocation field used to indicate the number of resource units (RU), and Used to indicate the number of repetitions of data. Among them, RU includes multiple resource elements (resource elements, RE), RE occupies one single-carrier frequency-division multiple access (SC-FDMA) symbol in the time domain, and one sub-carrier in the frequency domain. Carrier. RU is defined as occupied in the frequency domain

Subcarriers, occupied in the time domain

Time slots, each time slot includes

SC-FDMA symbols. Among them, for frequency division duplexing (FDD) NB-IoT system,

with

Respectively as shown in Table 3; For time division duplexing (TDD) NB-IoT system,

with

Respectively as shown in Table 4.

Table Three

Table Four

Among them, each configuration mode in the uplink or downlink configuration supported in Table 4 can be as shown in Table 5, including configuration mode 0 to configuration mode 6, a total of 7 configuration modes, where D represents a downlink subframe, and S represents a special subframe. Frame, U represents uplink subframe.

Table 5

The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Wherein, in the description of this application, unless otherwise specified, "/" means that the objects associated before and after are in an "or" relationship, for example, A/B can mean A or B; in this application, "and/or "It's just an association relationship that describes the associated objects. It means that there can be three kinds of relationships. For example, A and/or B can mean: A alone exists, A and B exist at the same time, and B exists alone. , B can be singular or plural. Also, in the description of this application, unless otherwise specified, "plurality" means two or more than two. "The following at least one item (a)" or similar expressions refers to any combination of these items, including any combination of a single item (a) or plural items (a). For example, at least one item (a) of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple . In addition, in order to clearly describe the technical solutions of the embodiments of the present application, in the embodiments of the present application, words such as "first" and "second" are used to distinguish the same items or similar items with basically the same function and effect. Those skilled in the art can understand that words such as "first" and "second" do not limit the quantity and order of execution, and words such as "first" and "second" do not limit the difference. Meanwhile, in the embodiments of the present application, words such as "exemplary" or "for example" are used as examples, illustrations, or illustrations. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of the present application should not be construed as being more preferable or advantageous than other embodiments or design solutions. To be precise, words such as "exemplary" or "for example" are used to present related concepts in a specific manner to facilitate understanding.

The embodiments of this application may be applicable to LTE systems, NB-IoT systems, LTE for Machines (LTE-M) systems, eMTC systems, NR systems, or communication systems in subsequent releases of these systems, etc.; It can also be applied to other wireless communication systems, such as global system for mobile communication (GSM), mobile communication system (universal mobile telecommunications system, UMTS), code division multiple access (CDMA) Systems, wideband code division multiple access (WCDMA) and new future-oriented network systems, etc., are not specifically limited in the embodiment of the present application. Among them, the above-mentioned communication system to which this application is applied is only an example, and the communication system to which this application is applied is not limited to this, and it is explained here in a unified manner, and will not be repeated hereafter. In addition, the term "system" can be replaced with "network".

As shown in FIG. 2, a communication system 20 provided by an embodiment of this application. The communication system 20 includes a second device 30 and one or more first devices 40 connected to the second device 30.

Taking the interaction between the second device 30 and any first device 40 shown in FIG. 2 as an example, in this embodiment of the present application, after the second device 30 determines the frequency domain resource corresponding to the second carrier, The second device 40 sends configuration information, which is used to determine the frequency domain resource corresponding to the second carrier. After the first device 40 receives the configuration information from the second device 30 on the first carrier and determines the frequency domain resource corresponding to the second carrier according to the configuration information, it receives the data or information from the second device 30 on the second carrier. Or, send data or signaling to the second device 30 on the second carrier. Wherein, the second carrier satisfies one or more of the following characteristics: the first reference signal carried on the second carrier has different characteristics from the second reference signal carried on the first carrier; or, the data corresponding to the first carrier Or the modulation mode of signaling is different from the modulation mode of data or signaling corresponding to the second carrier; or, the coding mode of data or signaling corresponding to the first carrier is different from the coding mode of data or signaling corresponding to the second carrier; Or, the frame structure corresponding to the first carrier is different from the frame structure corresponding to the second carrier; or, the duplex mode corresponding to the first carrier is different from the duplex mode corresponding to the second carrier; or, the maximum number of repetitions supported by the second carrier It is different from the maximum number of repetitions supported by the first carrier; or, the power control parameter on the second carrier is different from the power control parameter on the first carrier; or, the power control method on the second carrier is different from that on the first carrier. The control mode is different; or, the paging discontinuous reception period on the second carrier is different from the paging discontinuous reception period on the first carrier. Among them, the specific implementation and technical effects of the solution will be described in detail in the subsequent method embodiments, and will not be repeated here.

It should be noted that FIG. 2 takes the second device 30 as a network device and the first device 40 as a terminal device as an example for description. Of course, in this embodiment of the application, the first device 40 and the second device 30 may also be different terminal devices; or, the first device 40 and the second device 30 may also be other devices, which is not specifically described in this embodiment of the application. limited.

In addition, it should be noted that the third device or the fourth device in the subsequent embodiments of the present application and the first device are of the same type. For example, if the first device is a terminal device, the third device or the fourth device may It is a terminal device; or, for example, if the first device is another device, the third device or the fourth device may be another device, which is described here in a unified manner, and will not be repeated here.

Optionally, the network device in the embodiment of the present application is a device that connects a terminal device to a wireless network, and it may be an evolved Node B (eNB or eNodeB) in LTE; or in GSM or CDMA. Base Transceiver Station (BTS); or the base station (NodeB) in the WCDMA system; or the base station in the fifth generation (5G) network or the public land mobile network (PLMN) that will evolve in the future , Broadband network service gateway (broadband network gateway, BNG), aggregation switch, or non-3GPP access device, etc., which are not specifically limited in the embodiment of the present application. Optionally, the base stations in the embodiments of the present application may include various forms of base stations, such as macro base stations, micro base stations (also called small stations), relay stations, access points, etc., which are not specifically limited in the embodiments of the present application .

Optionally, the terminal device in the embodiment of the present application may be a device used to implement a wireless communication function, such as a terminal or a chip that can be used in a terminal. Among them, the terminal can be a UE, an access terminal, a terminal unit, a terminal station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a wireless communication device, a terminal agent, or a terminal device in a 5G network or a future evolved PLMN Wait. The access terminal can be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), with wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices or wearable devices, virtual reality (VR) terminal devices, augmented reality (AR) terminal devices, industrial control (industrial) Wireless terminal in control), wireless terminal in self-driving, wireless terminal in remote medical, wireless terminal in smart grid, wireless terminal in transportation safety (transportation safety) Terminal, wireless terminal in smart city, wireless terminal in smart home, etc. The terminal can be mobile or fixed.

Optionally, the first device and the second device in the embodiments of the present application may also be referred to as communication devices, which may be a general-purpose device or a dedicated device, which is not specifically limited in the embodiment of the present application.

Optionally, taking the second device 30 as a network device and the first device 40 as a terminal device as an example, as shown in FIG. 3, a schematic structural diagram of the network device 30 and the terminal device 40 provided in this embodiment of the application.

Wherein, the terminal device 40 includes at least one processor (in FIG. 3 exemplarily includes a processor 401 as an example for illustration) and at least one transceiver (in FIG. 3 exemplarily includes a transceiver 403 as an example for illustration) ). Optionally, the terminal device 40 may further include at least one memory (in FIG. 3 exemplarily includes a memory 402 as an example for illustration), at least one output device (in FIG. 3 exemplarily, an output device 404 is included as an example. For description) and at least one input device (in FIG. 3, one input device 405 is exemplarily described as an example).

The processor 401, the memory 402, and the transceiver 403 are connected through a communication line. The communication line may include a path to transmit information between the aforementioned components.

The processor 401 may be a general-purpose central processing unit (central processing unit, CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the program of the application Circuit. In a specific implementation, as an embodiment, the processor 401 may also include multiple CPUs, and the processor 401 may be a single-CPU processor or a multi-CPU processor. The processor here may refer to one or more devices, circuits, or processing cores for processing data (for example, computer program instructions).

The memory 402 may be a device having a storage function. For example, it can be read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM), or other types that can store information and instructions Dynamic storage devices can also be electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM), or other optical disk storage, optical disc storage ( Including compact discs, laser discs, optical discs, digital universal discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program codes in the form of instructions or data structures and can be stored by a computer Any other media taken, but not limited to this. The memory 402 may exist independently and is connected to the processor 401 through a communication line. The memory 402 may also be integrated with the processor 401.

The memory 402 is used to store computer execution instructions for executing the solution of the present application, and the processor 401 controls the execution. Specifically, the processor 401 is configured to execute computer-executable instructions stored in the memory 402, so as to implement the communication method described in the embodiment of the present application.

Or, optionally, in this embodiment of the application, the processor 401 may also perform processing-related functions in the communication method provided in the following embodiments of the application, and the transceiver 403 is responsible for communicating with other devices or communication networks. The embodiment does not specifically limit this.

Optionally, the computer execution instructions in the embodiments of the present application may also be referred to as application program codes or computer program codes, which are not specifically limited in the embodiments of the present application.

The transceiver 403 may use any device such as a transceiver to communicate with other devices or communication networks, such as Ethernet, RAN, or wireless local area networks (WLAN). The transceiver 403 includes a transmitter (transmitter, Tx) and a receiver (receiver, Rx).

The output device 404 communicates with the processor 401 and can display information in a variety of ways. For example, the output device 404 may be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector (projector) Wait.

The input device 405 communicates with the processor 401 and can accept user input in a variety of ways. For example, the input device 405 may be a mouse, a keyboard, a touch screen device, or a sensor device.

The network device 30 includes at least one processor (in FIG. 3 exemplarily includes a processor 301 as an example for illustration), at least one transceiver (in FIG. 3 exemplarily includes a transceiver 303 as an example for illustration), and At least one network interface (in FIG. 3, one network interface 304 is included as an example for illustration). Optionally, the network device 30 may further include at least one memory (in FIG. 3, one memory 302 is included as an example for illustration). Among them, the processor 301, the memory 302, the transceiver 303, and the network interface 304 are connected through a communication line. The network interface 304 is used to connect to the core network device through a link (for example, the S1 interface), or to connect with the network interface of other network equipment (not shown in FIG. 3) through a wired or wireless link (for example, the X2 interface). The application embodiment does not specifically limit this. In addition, for the relevant description of the processor 301, the memory 302, and the transceiver 303, reference may be made to the description of the processor 401, the memory 402, and the transceiver 403 in the terminal device 40, which will not be repeated here.

With reference to the schematic structural diagram of the terminal device 40 shown in FIG. 3, as an example, FIG. 4 is a specific structural form of the terminal device 40 provided in an embodiment of the application.

Among them, in some embodiments, the functions of the processor 401 in FIG. 3 may be implemented by the processor 110 in FIG. 4.

In some embodiments, the function of the transceiver 403 in FIG. 3 may be implemented by the antenna 1, antenna 2, mobile communication module 150, wireless communication module 160, etc. in FIG. 4.

Among them, antenna 1 and antenna 2 are used to transmit and receive electromagnetic wave signals. Each antenna in the terminal device 40 can be used to cover a single or multiple communication frequency bands. Different antennas can also be reused to improve antenna utilization. For example, antenna 1 can be multiplexed as a diversity antenna of a wireless local area network. In other embodiments, the antenna can be used in combination with a tuning switch.

The mobile communication module 150 may provide a wireless communication solution including 2G/3G/4G/5G and the like applied to the terminal device 40. The mobile communication module 150 may include at least one filter, switch, power amplifier, low noise amplifier (LNA), etc. The mobile communication module 150 can receive electromagnetic waves by the antenna 1, and perform processing such as filtering, amplifying and transmitting the received electromagnetic waves to the modem processor for demodulation. The mobile communication module 150 can also amplify the signal modulated by the modem processor, and convert it into electromagnetic waves for radiation via the antenna 1. In some embodiments, at least part of the functional modules of the mobile communication module 150 may be provided in the processor 110. In some embodiments, at least part of the functional modules of the mobile communication module 150 and at least part of the modules of the processor 110 may be provided in the same device.

The wireless communication module 160 can provide applications on the terminal device 40, including wireless local area networks (wireless local area networks, WLAN) (such as Wi-Fi networks), Bluetooth (blue tooth, BT), global navigation satellite system (global navigation satellite system, GNSS), frequency modulation (FM), near field communication (NFC), infrared technology (infrared, IR) and other wireless communication solutions. The wireless communication module 160 may be one or more devices integrating at least one communication processing module. The wireless communication module 160 receives electromagnetic waves via the antenna 2, frequency modulates and filters the electromagnetic wave signals, and sends the processed signals to the processor 110. The wireless communication module 160 can also receive the signal to be sent from the processor 110, perform frequency modulation, amplify it, and convert it into electromagnetic wave radiation via the antenna 2. When the terminal device 40 is the first device, the wireless communication module 160 may provide an NFC wireless communication solution applied to the terminal device 40, which means that the first device includes an NFC chip. The NFC chip can improve the NFC wireless communication function. When the terminal device 40 is the second device, the wireless communication module 160 can provide a solution for NFC wireless communication applied to the terminal device 40, which means that the first device includes an electronic tag (such as radio frequency identification (RFID) tags) ). The NFC chip of other devices close to the electronic tag can perform NFC wireless communication with the second device.

In some embodiments, the antenna 1 of the terminal device 40 is coupled with the mobile communication module 150, and the antenna 2 is coupled with the wireless communication module 160, so that the terminal device 40 can communicate with the network and other devices through wireless communication technology. The wireless communication technology may include GSM, general packet radio service (GPRS), CDMA, WCDMA, time-division code division multiple access (TD-SCDMA), LTE, BT, GNSS , WLAN, NFC, FM, or IR technology, etc. The GNSS may include global positioning system (GPS), global navigation satellite system (GLONASS), Beidou navigation satellite system (BDS), quasi-zenith satellite system (quasi -zenith satellite system, QZSS) or satellite-based augmentation systems (SBAS).

In some embodiments, the function of the memory 402 in FIG. 3 may be implemented by an external memory (such as a Micro SD card) connected to the internal memory 121 or the external memory interface 120 in FIG. 4.

In some embodiments, the function of the output device 404 in FIG. 3 may be implemented through the display screen 194 in FIG. 4. Among them, the display screen 194 is used to display images, videos, and so on. The display screen 194 includes a display panel.

In some embodiments, the function of the input device 405 in FIG. 3 may be implemented by a mouse, a keyboard, a touch screen device, or the sensor module 180 in FIG. 4. Exemplarily, as shown in FIG. 4, the sensor module 180 may include, for example, a pressure sensor 180A, a gyroscope sensor 180B, an air pressure sensor 180C, a magnetic sensor 180D, an acceleration sensor 180E, a distance sensor 180F, a proximity light sensor 180G, and a fingerprint sensor 180H. One or more of the temperature sensor 180J, the touch sensor 180K, the ambient light sensor 180L, and the bone conduction sensor 180M, which is not specifically limited in the embodiment of the present application.

In some embodiments, as shown in FIG. 4, the terminal device 40 may also include an audio module 170, a camera 193, an indicator 192, a motor 191, a button 190, a SIM card interface 195, a USB interface 130, a charging management module 140, One or more of the power management module 141 and the battery 142, where the audio module 170 can be connected to a speaker 170A (also called a “speaker”), a receiver 170B (also called a “handset”), a microphone 170C (also called a “microphone”, "Microphone") or the earphone interface 170D, etc., which are not specifically limited in the embodiment of the present application.

It can be understood that the structure shown in FIG. 4 does not constitute a specific limitation on the terminal device 40. For example, in other embodiments of the present application, the terminal device 40 may include more or fewer components than shown in the figure, or combine certain components, or split certain components, or arrange different components. The illustrated components can be implemented in hardware, software, or a combination of software and hardware.

2 to 4, the second device 30 shown in FIG. 2 is a network device, the first device 40 is a terminal device, and the network device interacts with any terminal device (assuming the first terminal device) as an example. The communication method provided by the embodiment of the present application will be expounded.

It should be noted that the name of the message between each network element or the name of each parameter in the message in the following embodiments of this application is just an example, and other names may also be used in specific implementations. The embodiments of this application do not make specific details about this. limited.

As shown in FIG. 5, a communication method provided by an embodiment of this application, the communication method includes the following steps S501-S504:

S501: The network device determines the frequency domain resource corresponding to the second carrier.

S502: The network device sends configuration information to the first terminal device on the first carrier. The first terminal device receives the configuration information from the second device 30 on the first carrier.

S503: The first terminal device determines the frequency domain resource corresponding to the second carrier according to the configuration information.

S504. The first terminal device sends data or signaling to the network device on the second carrier, and the network device receives the data or signaling from the first terminal device on the second carrier; and/or, the network device is on the second carrier Send data or signaling to the first terminal device, and the first terminal device receives the data or signaling from the network device on the second carrier.

Wherein, the second carrier satisfies one or more of the following characteristics: the first reference signal carried on the second carrier has different characteristics from the second reference signal carried on the first carrier; or, the data corresponding to the second carrier Or the modulation mode of signaling is different from the modulation mode of data or signaling corresponding to the first carrier; or, the coding mode of data or signaling corresponding to the second carrier is different from the coding mode of data or signaling corresponding to the first carrier; Or, the frame structure corresponding to the second carrier is different from the frame structure corresponding to the first carrier; or, the duplex mode corresponding to the second carrier is different from the duplex mode corresponding to the first carrier; or, the maximum number of repetitions supported by the second carrier It is different from the maximum number of repetitions supported by the first carrier; or, the power control parameter on the second carrier is different from the power control parameter on the first carrier; or, the power control method on the second carrier is different from that on the first carrier. The control mode is different; or, the paging discontinuous reception period on the second carrier is different from the paging discontinuous reception period on the first carrier.

Among them, in the above steps S501-S504:

Optionally, the configuration information in the embodiments of the present application may be carried by system messages, RRC signaling, media access control (media access control, MAC) control element (CE), or physical layer signaling. Among them, the specific form of the system message can be master information block (MIB), system information block 1 (system information block 1, SIB1), system information (system information, SI), other SIBs, and the remaining minimum system information (remaining Minimum system information (RMSI), or other system information (other system information, OSI), which is not specifically limited in the embodiment of the present application. The physical layer signaling may be DCI. For the related description of DCI, please refer to the brief introduction part of the specific implementation mode, which will not be repeated here.

Optionally, the configuration information on the first carrier in the embodiment of the present application may be, for example, the frequency domain position of the second carrier. The frequency domain position may be characterized by the start frequency domain position of the second carrier and the bandwidth information of the second carrier; or, the frequency domain position may be characterized by the end frequency domain position of the second carrier and the bandwidth information of the second carrier Or, the frequency domain position can be characterized by the start frequency domain position of the second carrier and the end frequency domain position of the second carrier, which is not specifically limited here.

Or, optionally, the configuration information on the first carrier in the embodiment of the present application may be, for example, the frequency domain offset of the second carrier relative to the first carrier and the bandwidth information of the second carrier. The frequency domain offset of the second carrier relative to the first carrier may be the frequency domain offset of the start position of the second carrier relative to the start position of the first carrier; or, the frequency domain offset of the second carrier relative to the first carrier The frequency domain offset may be the frequency domain offset of the start position of the second carrier relative to the end position of the first carrier; or the frequency domain offset of the second carrier relative to the first carrier may be the second carrier The frequency domain offset of the end position of the second carrier relative to the end position of the first carrier; or, the frequency domain offset of the second carrier relative to the first carrier may be the end position of the second carrier relative to the start of the first carrier The frequency domain offset of the position, etc., is not specifically limited here.

Optionally, the data carried on the second carrier in the embodiment of the present application may include, for example, uplink service data or downlink service data.

Optionally, the signaling carried on the second carrier in the embodiment of the present application may include, for example, uplink control signaling or downlink control signaling.

Optionally, the first carrier and the second carrier in the embodiment of the present application are carriers of the same communication system. In a possible implementation manner, the first carrier and the second carrier are carriers of the first communication system, and the first carrier and the second carrier are BWPs of the second communication system. The first communication system here may be, for example, an NB-IoT system, an LTE-M system, an eMTC system, an LTE system, an NR system, or a communication system or a future communication system of subsequent evolution versions of these systems; for example, the second communication system here It may be an NR system or a communication system of a subsequent evolved version of the NR system or a future communication system.

Exemplarily, assume that the first communication system here is an NB-IoT system, and the second communication system is an NR system. As shown in Figure 6, assuming that the bandwidth of the NB-IoT system is part of the bandwidth of the NR system, the first carrier and the second carrier are the carriers of the NB-IoT system, the first terminal device is the terminal device of the NR system, and the NR system is The first terminal device is configured with 3 dedicated BWPs, the first carrier is BWP1, the second carrier is BWP2, and there is another BWP3. The first carrier (BWP1) is the default BWP. Among them, the bandwidth of the three BWPs satisfies the relationship: BPW1<BPW2<BWP3. When data or signaling arrives and the first terminal device switches from BWP1 to BWP3, it starts the BWP inactivation timer. The first terminal device sends and receives data or signaling on BWP3. When the BWP inactivation timer expires, the first The terminal device switches from BWP3 to BWP1. Among them, the BWP with a smaller bandwidth is used as the default BWP, and the first terminal device resides on the smaller BWP when there is no data or signaling arrives. In this way, the power saving effect can be achieved for the first terminal device.

Optionally, in this embodiment of the present application, the first carrier is an anchor carrier of the first communication system, and the second carrier is a non-anchor carrier of the first communication system; or, the first carrier and the second carrier are the first communication The non-anchor carrier of the system; or, the first carrier is the anchor narrowband of the first communication system, and the second carrier is the non-anchor narrowband of the first communication system; or, the first carrier and the second carrier are the first communication system Or, the first carrier is the anchor broadband of the first communication system, and the second carrier is the non-anchor broadband of the first communication system; or, the first carrier and the second carrier are the anchor broadband of the first communication system Non-anchor broadband. Among them, the relevant description of the first communication system can refer to the above-mentioned embodiment, which will not be repeated here. For anchor carrier, non-anchor carrier, anchor narrowband, non-anchor narrowband, anchor wideband, or non-anchor wideband, please refer to the brief introduction part of the specific implementation, which will not be repeated here.

Optionally, in the embodiment of the present application, the characteristics of the first reference signal carried on the second carrier and the second reference signal carried on the first carrier are different, which may include: the sequence of the reference signal and the manner of generating the sequence of the reference signal One or more of the resource mapping position of the reference signal, the maximum number of ports occupied by the reference signal transmission, the period of the reference signal, or the type of the reference signal is different.

Optionally, the reference signal in the embodiment of the present application may include, for example, a demodulation reference signal (demodulation reference signal, DMRS) for a data channel, a demodulation reference signal for a control channel, and a positioning reference signal (positioning reference signal). , Channel state information reference signal (channel state information-reference signal, CSI-RS), wake-up signal (wake up signal, WUS), phase-tracking reference signal (phase-tracking reference signal, PTRS), CRS, narrowband reference signal (narrowband) reference signal (NRS), narrowband positioning reference signal (Narrowband positioning reference signal), narrowband wakeup signal (narrowband wakeup signal, NWUS), or MTC wakeup signal (MTC wakeup signal, MWUS). Among them, the data channel here may be the physical uplink shared channel (PUSCH), the downlink data shared channel (physical downlink shared channel, PDSCH), the NPUSCH, or the narrowband physical downlink shared channel (NPDSCH). ). The control channel here can be a downlink control channel (physical downlink control channel, PDCCH), an uplink control channel (physical uplink control channel, PUCCH), a physical broadcast channel (physical broadcast channel, PBCH), a narrowband physical downlink control channel (narrowband physical downlink control) channel, NPDCCH), narrowband physical broadcast channel (narrowband physical broadcast channel, NPBCH), or MTC downlink control channel (MTC physical downlink control channel, MPDCCH).

Or, for example, the type of the second reference signal carried on the first carrier is a permanently online common reference signal, and the type of the first reference signal carried on the second carrier is an on-demand reference signal. For example, as shown in Figure 7, the first carrier can carry a permanently online public reference signal; the second carrier does not carry a permanently online public reference signal or carries an on-demand reference signal, that is, the reference signal is sent when there is data scheduling. When there is no data scheduling, the reference signal is not sent, which can save the power consumption of the network device and meet the IoT applications that require lower power consumption on the network device side.

Optionally, in this embodiment of the present application, the second reference signal sequence used to generate the second reference signal carried on the first carrier is determined according to the bandwidth of the first carrier. For details, reference may be made to existing implementations. To repeat.

Optionally, the second reference signal is sent on the first carrier, and the second reference signal is not sent on the second carrier. Exemplarily, for the eMTC system, CRS is sent on the first carrier, and CRS is not sent on the second carrier.

Or, as an example, as shown in FIG. 8, the resource mapping position of the second reference signal carried on the first carrier is different from the resource mapping position of the first reference signal carried on the second carrier, so that the resource allocation of the reference signal More flexible.

Alternatively, the type of the first reference signal carried on the second carrier is different from the type of the second reference signal carried on the first carrier, including: the first carrier can support common reference signal demodulation or measurement, and the second carrier can support dedicated solution Modulate the reference signal for demodulation or measurement, thereby making the transmission of the reference signal and resource allocation more flexible. Exemplarily, for the eMTC system, CRS is used for demodulation on the first carrier, and DMRS is used for demodulation on the second carrier. Or, for the eMTC system, CRS is used for measurement on the first carrier, and DMRS or CSI-RS is used for measurement on the second carrier. Or, for the NB-IoT system, NRS is used for demodulation on the first carrier, and DMRS is used for demodulation on the second carrier. Or, for the NB-IoT system, NRS is used for measurement on the first carrier, and DMRS or CSI-RS is used for measurement on the second carrier.

Optionally, in this embodiment of the present application, the modulation mode of data or signaling corresponding to the first carrier is different from the modulation mode of data or signaling corresponding to the second carrier, and may include: data or signaling corresponding to the first carrier. The modulation method supports quadrature phase shift keying (quadrature phase shift keying, QPSK) at the highest order, and the modulation method of data or signaling corresponding to the second carrier supports 16 quadrature amplitude modulation (QAM) at the highest order. Increase the peak rate to meet higher-rate services; or, the modulation method of data or signaling corresponding to the first carrier supports 16QAM at the highest order, and the modulation method of data or signaling corresponding to the second carrier supports QPSK at the highest order, which can improve the resolution. Adjust performance to meet IoT applications that require higher coverage performance.

Optionally, in this embodiment of the present application, the coding mode of data or signaling corresponding to the first carrier is different from the coding mode of data or signaling corresponding to the second carrier, and may include: data or signaling corresponding to the first carrier The encoding method is tail biting convolutional coding (TBCC), and the encoding method of data or signaling corresponding to the second carrier is polar coding; or, the data or signaling corresponding to the first carrier The encoding method is turbo coding, and the encoding method of data or signaling corresponding to the second carrier is polarization code; or, the encoding method of data or signaling corresponding to the first carrier is tail-biting convolutional code, and the encoding method of data or signaling corresponding to the first carrier is tail-biting convolutional code. The encoding method of data or signaling corresponding to the carrier is low density parity check coding (LDPC coding); or, the encoding method of data or signaling corresponding to the first carrier is turbo code, and the second carrier corresponds to The encoding method of data or signaling is low-density parity-check code. By designing the encoding method of the data or signaling corresponding to the first carrier to be different from the encoding method of the data or signaling corresponding to the second carrier, the decoding performance can be improved to meet IoT applications with higher coverage performance requirements.

Optionally, in this embodiment of the present application, the frame structure corresponding to the first carrier is different from the frame structure corresponding to the second carrier, which may include one or more of the following differences: the duration of the radio frame, the number of subframes in a radio frame , The number of time slots in a subframe, the number of orthogonal frequency division multiplexing (OFDM) symbols in a time slot, the number of uplink and downlink subframes in a radio frame, or the number of The number of uplink and downlink OFDM symbols in the slot.

Optionally, in this embodiment of the application, the duplex mode corresponding to the first carrier is different from the duplex mode corresponding to the second carrier, which may include: the first carrier uses FDD, and the second carrier uses time division duplex (time division duplex, TDD); or, the first carrier uses TDD, and the second carrier uses FDD. By designing the duplex mode corresponding to the first carrier to be different from the duplex mode corresponding to the second carrier, it is possible to flexibly support IoT applications with different requirements.

Optionally, in this embodiment of the present application, the maximum number of repetitions supported by the second carrier is different from the maximum number of repetitions supported by the first carrier, which may include: the maximum number of repetitions supported by the second carrier is greater than the maximum number of repetitions supported by the first carrier; Or, the maximum number of repetitions supported by the second carrier is less than the maximum number of repetitions supported by the first carrier. By designing that the maximum number of repetitions supported by the second carrier is different from the maximum number of repetitions supported by the first carrier, it can help the network equipment to schedule terminal devices supporting multiple coverage levels on different carriers according to different coverage levels. For example, in the eMTC system, assuming that the terminal device can adopt CE mode A on the first carrier, in order to enhance coverage, the terminal device can adopt CE mode B on the second carrier, that is, the maximum number of repetitions supported by the second carrier is greater than the The maximum number of repetitions supported by a carrier. Among them, the relevant description of the coverage enhancement mode of the terminal can refer to the brief introduction part of the specific implementation manner, which is not repeated here.

Optionally, in this embodiment of the present application, the power control parameter on the second carrier is different from the power control parameter on the first carrier, and may include one or more of the following differences: the configured transmit power of the terminal device, the uplink data The bandwidth of the channel or the uplink control channel, the path loss compensation factor, the cell-level power control parameter P0_cell, and the terminal device specific power control parameter P0_UE. Among them, by designing the power control parameters on the second carrier to be different from the power control parameters on the first carrier, the network device can flexibly adjust the transmit power of the terminal device, avoid uplink interference, and can flexibly support IoT applications with different requirements.

Optionally, in the embodiment of the present application, the power control mode on the second carrier is different from the power control mode on the first carrier, which may include: the first carrier adopts a path loss compensation-based method, that is, open-loop power control, The second carrier adopts closed-loop power control. Among them, the open-loop power control means that the feedback information of the receiving end is not required, and the power control is performed according to its own measurement. Closed-loop power control refers to the transmitter power control based on the feedback information sent by the receiver. By designing the power control method on the second carrier to be different from the power control method on the first carrier, the network equipment can flexibly adjust the transmit power of the terminal device, avoid uplink interference, and can flexibly support IoT applications with different requirements.

Optionally, in this embodiment of the present application, the paging discontinuous reception period on the second carrier is different from the paging discontinuous reception period on the first carrier, and may include: the paging discontinuous reception period on the second carrier is T3, the paging discontinuous reception cycle on the first carrier is T4, and T3 is different from T4, which can flexibly support IoT applications with different requirements.

Optionally, in the embodiment of the present application, the second carrier may also satisfy the following characteristics: the difference between the bandwidth of the first carrier and the bandwidth of the second carrier is greater than a set value, and the set value is greater than or equal to zero.

It should be noted that the difference between the bandwidth of the first carrier and the bandwidth of the second carrier may be the difference obtained by subtracting the bandwidth of the second carrier from the bandwidth of the first carrier, or it may be the bandwidth of the second carrier minus the bandwidth of the second carrier. The difference obtained by the bandwidth of a carrier, the difference is a positive number. That is to say, the bandwidth of the first carrier in the embodiment of the present application is different from the bandwidth of the second carrier.

Exemplarily, the bandwidth of the second carrier may be greater than the bandwidth of the first carrier. For example, as shown in Figure 9, for the NB-IoT system, the bandwidth of the first carrier is 180kHz, and the bandwidth of the second carrier is greater than 180kHz. By designing the bandwidth of the second carrier to be greater than the bandwidth of the first carrier, the system capacity can be increased, thereby increasing the data or signaling transmission rate.

Or, for example, the bandwidth of the second carrier may be smaller than the bandwidth of the first carrier. For example, as shown in Figure 10 for the eMTC system, the bandwidth of the first carrier is 1.4MHz, and the bandwidth of the second carrier is 180kHz. By designing the bandwidth of the second carrier to be smaller than the bandwidth of the first carrier, a single carrier can be supported on the second carrier. The scheduling of subcarriers can further improve the coverage of uplink transmission.

Optionally, in the embodiment of the present application, the second carrier may occupy continuous frequency resources or may occupy discrete frequency resources, which is not specifically limited here.

Optionally, in this embodiment of the present application, the second carrier and the first carrier may belong to the same cell, that is, the corresponding cell identities are the same.

Optionally, in this embodiment of the application, the cell where the second carrier is located may be a sub-cell belonging to the cell where the first carrier is located, and the corresponding cell identity is generated by the cell identity of the cell where the first carrier is located, which is not specifically limited here.

Optionally, in this embodiment of the present application, the second carrier may also support the configuration of time-frequency resources that are allowed to be used by the third device but cannot be used by the first terminal device. Wherein, the third device may be of a different category from the first terminal device, and/or the capabilities supported by the third device and the first terminal device are different.

Exemplarily, the third device here may be a third terminal device. For the NB-IoT system, the category of the first terminal device may be category NB1, and the category of the third terminal device may be category NB2; or, for NB-IoT In the system, the category of the first terminal device may be category NB2, and the category of the third terminal device may be category NB1, which is not specifically limited here. For the related description of the terminal category, please refer to the brief introduction part of the specific implementation manner, which is not repeated here. Optionally, a new terminal device category can also be introduced, such as category NB3. The category of the first terminal device can be category NB1 or category NB2, and the category of the third terminal device can be category NB3. There is no specific limitation.

Or, as an example, the third device here may be a third terminal device, the third terminal device has the ability to perform data or signaling transmission on the time-frequency resource, and the first terminal device does not have the ability to transmit data or signaling on the time-frequency resource. The ability to transmit data or signaling.

Optionally, in this embodiment of the application, the network device may send indication information to the first terminal device through system messages, RRC signaling, MAC CE, or physical layer signaling. The indication information is used to indicate that the third device is allowed to use Time-frequency resources that cannot be used by the first terminal device. The specific examples of system messages and physical layer signaling are consistent with the previous description, and will not be repeated here.

Exemplarily, the system message, RRC signaling, MAC CE, or physical layer signaling may indicate in the frequency domain which resource blocks cannot be used by the first terminal device in the form of a first bitmap; The form indicates in the time domain which OFDM symbols in each slot or in every two slots cannot be used by the first terminal device. In addition, the system message, RRC signaling, MAC CE, or physical layer signaling may also indicate the period of the first bitmap and the second bitmap, which is not specifically limited in the embodiment of the present application.

Since the second carrier can also support the configuration of time-frequency resources that are allowed to be used by the third device but cannot be used by the first terminal device, it can be used for forward compatibility. Forward compatibility can be understood as the second carrier that supports the configuration of time-frequency resources that cannot be used by the current version of the network device. These time-frequency resources can be used in subsequent evolved versions of the network device to ensure that existing terminals can access the network.

Optionally, as shown in FIG. 5, the communication method provided in the embodiment of the present application may further include the following step S505:

S505: The network device sends one or more of a first synchronization signal, a paging message, a paging random access response message, UE application system information, or a multicast message to the first terminal device on the second carrier. The first terminal device receives one or more of the first synchronization signal, the paging message, the paging random access response message, the UE application system information, or the multicast message from the network device on the second carrier.

Optionally, in this embodiment of the present application, the characteristics of the first synchronization signal and the second synchronization signal carried on the first carrier may be the same or different, which is not specifically limited herein.

Optionally, in the embodiment of the present application, the characteristics of the first synchronization signal and the second synchronization signal carried on the first carrier are different, and may include: the sequence of the synchronization signal, the resource mapping position of the synchronization signal, and the step size of the synchronization signal search Or one or more of the types of synchronization signals are different.

Optionally, in this embodiment of the application, the types of synchronization signals may include, for example, primary synchronization signal (primary synchronization signal, PSS), secondary synchronization signal (secondary synchronization signal, SSS), and narrowband primary synchronization signal (narrowband primary synchronization signal). NPSS) or narrowband secondary synchronization signal (NPSS).

Optionally, in this embodiment of the present application, the first carrier carries the primary synchronization signal and the secondary synchronization signal, and the second carrier carries the primary synchronization signal; or, the first carrier carries the primary synchronization signal and the secondary synchronization signal, and the second carrier carries the secondary synchronization signal. Signal; or, the first carrier carries the primary synchronization signal and the secondary synchronization signal, and the second carrier carries the primary synchronization signal and the secondary synchronization signal; or, the first carrier carries the narrowband primary synchronization signal and the narrowband secondary synchronization signal, and the second carrier carries the narrowband primary synchronization signal. Synchronization signal; or, the first carrier carries the narrowband primary synchronization signal and the narrowband secondary synchronization signal, and the second carrier carries the narrowband secondary synchronization signal; or, the first carrier carries the narrowband primary synchronization signal and the narrowband secondary synchronization signal, and the second carrier carries the narrowband primary synchronization signal. Synchronization signal and narrowband auxiliary synchronization signal.

Since in the embodiment of the present application, the network device can send synchronization signals to the first terminal device on different carriers of the same communication system, the synchronization performance of the system can be improved.

Optionally, the first carrier in the embodiment of the present application may not carry the second synchronization signal. Instead, the first terminal device may receive paging or perform random access procedures on the first carrier. This is not specifically limited.

Or, optionally, the second carrier in the embodiment of the present application may not carry the first synchronization signal. Instead, the first terminal device may receive paging or perform random access procedures on the second carrier. The implementation of this application The example does not specifically limit this.

Or, optionally, in this embodiment of the application, the first terminal device may receive synchronization signals on the first carrier, receive data or signaling on the second carrier, or transmit data or signaling on the second carrier. The embodiment does not specifically limit this.

Optionally, as shown in FIG. 5, the communication method provided in the embodiment of the present application may further include the following step S506:

S506: The first terminal device sends one or more of a random access preamble, a sounding reference signal, or a demodulation reference signal to the network device on the second carrier. The network device receives one or more of the random access preamble, sounding reference signal, or demodulation reference signal from the first terminal device on the second carrier.

Wherein, the random access preamble is different from the random access preamble carried on the first carrier; the sounding reference signal is different from the sounding reference signal carried on the first carrier; the demodulation reference signal is different from that carried on the first carrier The demodulation reference signal is different.

Optionally, in this embodiment of the present application, the network device may also send DCI to the first terminal device on the first carrier or the second carrier. Correspondingly, the first terminal device may also receive the DCI from the network device on the first carrier or the second carrier, and determine the number of bits occupied by the resource allocation field in the DCI according to the bandwidth of the second carrier. Among them, the relevant description of DCI can refer to the brief introduction part of the specific implementation manners, which is not repeated here.

Optionally, in this embodiment of the present application, the category of the first terminal device and the category of the fourth device may be different, where the fourth device is a device that does not have the ability to receive configuration information. Exemplarily, the fourth device here may be a fourth terminal device. The category of the first terminal device is different from the category of the fourth terminal device, which may include: for the NB-IoT system, the category of the first terminal device is category NB2, and the category of the fourth terminal device is category NB1; or, for NB-IoT In the system, the category of the first terminal device is category NB1, and the category of the fourth terminal device is category NB2, which is not specifically limited in the embodiment of the present application. For the related description of the terminal category, please refer to the brief introduction part of the specific implementation manner, which is not repeated here. Optionally, a new terminal device category can also be introduced, such as category NB3. The category of the first terminal device can be category NB3, and the category of the fourth terminal device can be category NB2 or category NB1, which is not discussed in this embodiment of the application. Specific restrictions.

Optionally, in this embodiment of the present application, the category of the first terminal device and the category of the fourth device may be the same, where the fourth device is a device that does not have the ability to receive configuration information. Exemplarily, the fourth device here may be a fourth terminal device. The category of the first terminal device is the same as the category of the fourth terminal device, which may include: for the NB-IoT system, the category of the first terminal device and the category of the fourth terminal device are both category NB2; or, for the NB-IoT system , The category of the first terminal device and the category of the fourth terminal device are both category NB1. Alternatively, a new terminal device category may be introduced, such as category NB3, and the categories of the first terminal device and the fourth terminal device may be category NB3, which is not specifically limited in the embodiment of the present application.

In summary, based on the communication method provided in the embodiments of the present application, the first carrier and the second carrier of the same communication system that can be used to carry data or signaling of the first terminal device have one or more of the following characteristics: The characteristics of the first reference signal carried on the carrier are different from that of the second reference signal carried on the first carrier; or, the modulation mode of the data or signaling corresponding to the first carrier is different from the modulation mode of the data or signaling corresponding to the second carrier Or, the encoding method of data or signaling corresponding to the first carrier is different from the encoding method of data or signaling corresponding to the second carrier; or, the frame structure corresponding to the first carrier is different from the frame structure corresponding to the second carrier; or , The duplex mode corresponding to the first carrier is different from the duplex mode corresponding to the second carrier; or, the maximum number of repetitions supported by the second carrier is different from the maximum number of repetitions supported by the first carrier; or, the power control on the second carrier The parameter is different from the power control parameter on the first carrier; or, the power control method on the second carrier is different from the power control method on the first carrier; or, the paging discontinuous reception period on the second carrier is different from the said The paging discontinuous reception cycle on the first carrier is different, so based on this communication method, IoT applications with different requirements can be flexibly supported. For the analysis of related technical effects, please refer to the above method embodiment part, which will not be repeated here.

Wherein, the actions of the network device in the above steps S501 to S506 can be executed by the processor 301 in the network device 30 shown in FIG. 3 calling the application code stored in the memory 302 to instruct the network device to execute. In the above steps S501 to S506 The action of the first terminal device may be executed by the processor 401 in the terminal device 40 shown in FIG. 3 calling the application program code stored in the memory 402 to instruct the terminal device to execute, and this embodiment does not impose any limitation on this.

It can be understood that, in the above embodiments, the methods and/or steps implemented by the first terminal device can also be implemented by components (such as chips or circuits) that can be used in the first terminal device, and the methods and/or steps implemented by the network device /Or the steps can also be implemented by components that can be used in network devices.

The foregoing mainly introduces the solution provided by the embodiment of the present application from the perspective of interaction between various network elements. Correspondingly, an embodiment of the present application also provides a communication device, which is used to implement the foregoing various methods. The communication device may be the first device in the foregoing method embodiment, or a device including the foregoing first device, or a component that can be used in the first device; or, the communication device may be the second device in the foregoing method embodiment , Or a device containing the above-mentioned second device, or a component that can be used for the second device. It can be understood that, in order to realize the above-mentioned functions, the communication device includes hardware structures and/or software modules corresponding to each function. Those skilled in the art should easily realize that in combination with the units and algorithm steps of the examples described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.

The embodiments of the present application may divide the communication device into functional modules according to the foregoing method embodiments. For example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The above-mentioned integrated modules can be implemented in the form of hardware or software functional modules. It should be noted that the division of modules in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation.

For example, take the communication device as the first device in the foregoing method embodiment as an example. FIG. 11 shows a schematic structural diagram of a first device 110. The first device 110 includes a processing module 1101 and a transceiver module 1102. The transceiver module 1102 may also be referred to as a transceiver unit to implement sending and/or receiving functions, and may be, for example, a transceiver circuit, transceiver, transceiver or communication interface.

Among them, the transceiver module 1102 is used to receive configuration information from the second device on the first carrier; the processing module 1101 is used to determine the frequency domain resources corresponding to the second carrier according to the configuration information; the transceiver module 1102 is also used to Receive data or signaling on the second carrier; and/or, the transceiver module 1102 is also used to send data or signaling on the second carrier; wherein the second carrier satisfies one or more of the following characteristics: The characteristics of the first reference signal carried on the carrier are different from that of the second reference signal carried on the first carrier; or, the modulation method of the data or signaling corresponding to the second carrier is the same as the modulation method of the data or signaling corresponding to the first carrier Different; or, the encoding method of data or signaling corresponding to the second carrier is different from the encoding method of data or signaling corresponding to the first carrier; or, the frame structure corresponding to the second carrier is different from the frame structure corresponding to the first carrier; Or, the duplex mode corresponding to the first carrier is different from the duplex mode corresponding to the second carrier; or, the maximum number of repetitions supported by the second carrier is different from the maximum number of repetitions supported by the first carrier; or, the power on the second carrier The control parameters are different from the power control parameters on the first carrier; or, the power control mode on the second carrier is different from the power control mode on the first carrier; or, the paging discontinuous reception period on the second carrier is different from that on the first carrier. The paging discontinuous reception cycle on one carrier is different.

Optionally, the transceiver module 1102 is further configured to receive indication information from the second device. The indication information is used to indicate time-frequency resources that are allowed to be used by the third device but cannot be used by the first device. The second carrier supports configuration For time-frequency resources, the third device and the first device have different categories, and/or the third device and the first device support different capabilities.

Optionally, the transceiver module 1102 is further configured to receive one of the first synchronization signal, paging message, paging random access response message, UE application system information, or multicast message from the second device on the second carrier. Or more.

Optionally, the first synchronization signal and the second synchronization signal carried on the first carrier have different characteristics.

Optionally, the characteristics of the first synchronization signal and the second synchronization signal carried on the first carrier are different, including: the sequence of the synchronization signal, the resource mapping position of the synchronization signal, the step length of the synchronization signal search or the type of the synchronization signal One or more are different.

Optionally, the transceiver module 1102 is further configured to send one or more of a random access preamble, a sounding reference signal, or a demodulation reference signal to the second device on the second carrier, where the random access preamble and The random access preamble carried on the first carrier is different; the sounding reference signal is different from the sounding reference signal carried on the first carrier; the demodulation reference signal is different from the demodulation reference signal carried on the first carrier.

Optionally, the transceiver module 1102 is further configured to receive DCI from the second device on the first carrier or the second carrier; the first device determines the number of bits occupied by the resource allocation domain in the DCI according to the bandwidth of the second carrier.

Among them, all relevant content of each step involved in the above method embodiment can be cited in the function description of the corresponding function module, and will not be repeated here.

In this embodiment, the first device 110 is presented in the form of dividing various functional modules in an integrated manner. The "module" here can refer to a specific ASIC, circuit, processor and memory that executes one or more software or firmware programs, integrated logic circuit, and/or other devices that can provide the above-mentioned functions. In a simple embodiment, assuming that the first device 110 is a terminal device, those skilled in the art can imagine that the first device 110 may take the form of the terminal device 40 shown in FIG. 3.

For example, the processor 401 in the terminal device 40 shown in FIG. 3 may invoke the computer execution instruction stored in the memory 402 to make the terminal device 40 execute the communication method in the foregoing method embodiment.

Specifically, the functions/implementation process of the processing module 1101 and the transceiver module 1102 in FIG. 11 can be implemented by the processor 401 in the terminal device 40 shown in FIG. 3 calling the computer execution instructions stored in the memory 402. Alternatively, the function/implementation process of the processing module 1101 in FIG. 11 can be implemented by the processor 401 in the terminal device 40 shown in FIG. 3 calling a computer execution instruction stored in the memory 402, and the function of the transceiver module 1102 in FIG. 11 /The realization process can be realized by the transceiver 403 in the terminal device 40 shown in FIG. 3.

Since the first device 110 provided in this embodiment can execute the above-mentioned communication method, the technical effects that can be obtained can refer to the above-mentioned method embodiment, which will not be repeated here.

Or, for example, take the communication device as the second device in the foregoing method embodiment as an example. FIG. 12 shows a schematic structural diagram of a second device 120. The second device 120 includes a processing module 1201 and a transceiver module 1202. The transceiver module 1202 may also be referred to as a transceiver unit for implementing sending and/or receiving functions, for example, it may be a transceiver circuit, transceiver, transceiver or communication interface.

Among them, the processing module 1201 is used to determine the frequency domain resource corresponding to the second carrier; the transceiver module 1202 is used to send configuration information to the first device on the first carrier, and the configuration information is used to determine the frequency domain corresponding to the second carrier Resources; transceiver module 1202, which is also used to send data or signaling on the second carrier; and/or, transceiver module 1202, which is also used to receive data or signaling on the second carrier; wherein, the second carrier meets the following characteristics One or more of the following: the first reference signal carried on the second carrier has different characteristics from the second reference signal carried on the first carrier; or, the modulation mode of the data or signaling corresponding to the second carrier is different from that of the first The modulation mode of the data or signaling corresponding to the carrier is different; or the coding mode of the data or signaling corresponding to the second carrier is different from the coding mode of the data or signaling corresponding to the first carrier; or, the frame structure corresponding to the second carrier The frame structure corresponding to the first carrier is different; or, the duplex mode corresponding to the second carrier is different from the duplex mode corresponding to the first carrier; or, the maximum number of repetitions supported by the second carrier and the maximum number of repetitions supported by the first carrier Different; or, the power control parameter on the second carrier is different from the power control parameter on the first carrier; or, the power control method on the second carrier is different from the power control method on the first carrier; or, the second carrier The paging discontinuous reception period on the above is different from the paging discontinuous reception period on the first carrier.

Optionally, the transceiver module 1202 is further configured to send indication information to the first device, where the indication information is used to indicate time-frequency resources that are allowed to be used by the third device but cannot be used by the first device. The second carrier supports configuration For time-frequency resources, the third device and the first device have different categories, and/or the capabilities supported by the third device and the first device are different.

Optionally, the transceiver module 1202 is further configured to send one or one of the first synchronization signal, paging message, paging random access response message, UE application system information, or multicast message to the first device on the second carrier. Multiple.

Optionally, the transceiver module 1202 is further configured to receive one or more of a random access preamble, sounding reference signal, or demodulation reference signal from the first device on the second carrier, where the random access preamble It is different from the random access preamble carried on the first carrier; the sounding reference signal is different from the sounding reference signal carried on the first carrier; and the demodulation reference signal is different from the demodulation reference signal carried on the first carrier.

The optional transceiver module 1202 is further configured to send DCI to the first device on the first carrier or on the second carrier, where the number of bits occupied by the resource allocation field in the DCI is determined according to the bandwidth of the second carrier.

In this embodiment, the second device 120 is presented in the form of dividing various functional modules in an integrated manner. The "module" here can refer to a specific ASIC, circuit, processor and memory that executes one or more software or firmware programs, integrated logic circuit, and/or other devices that can provide the above-mentioned functions.

In a simple embodiment, assuming that the second device 120 is a network device, those skilled in the art can imagine that the second device 120 may take the form of the network device 30 shown in FIG. 3.

For example, the processor 301 in the network device 30 shown in FIG. 3 may invoke the computer execution instructions stored in the memory 302 to make the network device 30 execute the communication method in the foregoing method embodiment.

Specifically, the function/implementation process of the processing module 1201 and the transceiver module 1202 in FIG. 12 may be implemented by the processor 301 in the network device 30 shown in FIG. 3 calling a computer execution instruction stored in the memory 302. Alternatively, the function/implementation process of the processing module 1201 in FIG. 12 can be implemented by the processor 301 in the network device 30 shown in FIG. 3 calling a computer execution instruction stored in the memory 302, and the function of the transceiver module 1202 in FIG. 12 /The implementation process can be implemented by the transceiver 303 in the network device 30 shown in FIG. 3.

In another simple embodiment, assuming that the second device 120 is a terminal device, those skilled in the art can imagine that the second device 120 may take the form of the terminal device 40 shown in FIG. 3.

For example, the processor 301 in the terminal device 40 shown in FIG. 3 may invoke the computer execution instruction stored in the memory 302 to make the terminal device 40 execute the communication method in the foregoing method embodiment.

Specifically, the function/implementation process of the processing module 1201 and the transceiver module 1202 in FIG. 12 may be implemented by the processor 301 in the terminal device 40 shown in FIG. 3 calling the computer execution instructions stored in the memory 302. Alternatively, the function/implementation process of the processing module 1201 in FIG. 12 can be implemented by the processor 301 in the terminal device 40 shown in FIG. 3 calling a computer execution instruction stored in the memory 302, and the function of the transceiver module 1202 in FIG. /The implementation process can be implemented by the transceiver 303 in the terminal device 40 shown in FIG. 3.

Since the second device 120 provided in this embodiment can execute the above-mentioned communication method, the technical effects that can be obtained can refer to the above-mentioned method embodiment, which will not be repeated here.

Optionally, an embodiment of the present application further provides a communication device (for example, the communication device may be a chip or a chip system), and the communication device includes a processor for implementing the method in any of the foregoing method embodiments. In a possible design, the communication device further includes a memory. The memory is used to store necessary program instructions and data, and the processor can call the program code stored in the memory to instruct the communication device to execute the method in any of the foregoing method embodiments. Of course, the memory may not be in the communication device. When the communication device is a chip system, it may be composed of a chip, or may include a chip and other discrete devices, which is not specifically limited in the embodiment of the present application.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using a software program, it can be implemented in the form of a computer program product in whole or in part. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer may be a general-purpose computer, a dedicated computer, a computer network, or other programmable devices. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website, computer, server, or data center. Transmission to another website, computer, server or data center via wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be accessed by a computer, or may include one or more data storage devices such as servers and data centers that can be integrated with the medium. The usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)). In the embodiment of the present application, the computer may include the aforementioned device.

Although the present application is described with reference to various embodiments, in the process of implementing the claimed application, those skilled in the art can understand and understand by viewing the drawings, the disclosure, and the appended claims. Implement other changes of the disclosed embodiment. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "one" does not exclude multiple. A single processor or other unit may implement several functions listed in the claims. Certain measures are described in mutually different dependent claims, but this does not mean that these measures cannot be combined to produce good results.

Although the application has been described in conjunction with specific features and embodiments, it is obvious that various modifications and combinations can be made without departing from the spirit and scope of the application. Accordingly, this specification and drawings are merely exemplary descriptions of the application defined by the appended claims, and are deemed to have covered any and all modifications, changes, combinations or equivalents within the scope of the application. Obviously, those skilled in the art can make various changes and modifications to the application without departing from the spirit and scope of the application. In this way, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalent technologies, this application also intends to include these modifications and variations.

Claims

A communication method, characterized in that the method includes:

The first device receives the configuration information from the second device on the first carrier;

Determining, by the first device, the frequency domain resource corresponding to the second carrier according to the configuration information;

The first device receives data or the signaling on the second carrier; and/or, the first device transmits data or signaling on the second carrier; wherein, the second carrier satisfies One or more of the following characteristics:

The first reference signal carried on the second carrier and the second reference signal carried on the first carrier have different characteristics;

Or, the modulation mode of data or signaling corresponding to the second carrier is different from the modulation mode of data or signaling corresponding to the first carrier;

Or, the coding mode of data or signaling corresponding to the second carrier is different from the coding mode of data or signaling corresponding to the first carrier;

Or, the frame structure corresponding to the second carrier is different from the frame structure corresponding to the first carrier;

Or, the duplex mode corresponding to the second carrier is different from the duplex mode corresponding to the first carrier;

Or, the maximum number of repetitions supported by the second carrier is different from the maximum number of repetitions supported by the first carrier;

Or, the power control parameter on the second carrier is different from the power control parameter on the first carrier;

Or, the power control mode on the second carrier is different from the power control mode on the first carrier;

Alternatively, the paging discontinuous reception period on the second carrier is different from the paging discontinuous reception period on the first carrier.
The method of claim 1, wherein the method further comprises:

The first device receives indication information from the second device, where the indication information is used to indicate time-frequency resources that are allowed to be used by the third device but cannot be used by the first device, wherein the second carrier Supporting configuration of the time-frequency resource, the third device and the first device are of different types, and/or the capabilities supported by the third device and the first device are different.
The method according to claim 1 or 2, wherein the method further comprises:

The first device receives one of a first synchronization signal, a paging message, a paging random access response message, a user equipment UE requesting system information, or a multicast message from the second device on the second carrier Or more.
The method according to claim 3, wherein the characteristics of the first synchronization signal and the second synchronization signal carried on the first carrier are different.
The method according to claim 4, wherein the characteristics of the first synchronization signal and the second synchronization signal carried on the first carrier are different, comprising:

One or more of the sequence of the synchronization signal, the resource mapping position of the synchronization signal, the step size of the synchronization signal search, or the type of the synchronization signal is different.
The method according to any one of claims 1-5, wherein the method further comprises:

The first device sends one or more of a random access preamble, a sounding reference signal, or a demodulation reference signal to the second device on the second carrier, where the random access preamble and The random access preamble carried on the first carrier is different; the sounding reference signal is different from the sounding reference signal carried on the first carrier; the demodulation reference signal is different from the solution carried on the first carrier The tuning reference signal is different.
The method according to any one of claims 1-6, wherein the method further comprises:

Receiving, by the first device, the downlink control information DCI from the second device on the first carrier or on the second carrier;

The first device determines the number of bits occupied by the resource allocation field in the DCI according to the bandwidth of the second carrier.
A communication method, characterized in that the method includes:

The second device determines the frequency domain resource corresponding to the second carrier;

The second device sends configuration information to the first device on the first carrier, where the configuration information is used to determine the frequency domain resource corresponding to the second carrier;

The second device sends data or the signaling on the second carrier; and/or the second device receives data or signaling on the second carrier; wherein, the second carrier satisfies One or more of the following characteristics:

The first reference signal carried on the second carrier and the second reference signal carried on the first carrier have different characteristics;

Or, the modulation mode of data or signaling corresponding to the second carrier is different from the modulation mode of data or signaling corresponding to the first carrier;

Or, the coding mode of data or signaling corresponding to the second carrier is different from the coding mode of data or signaling corresponding to the first carrier;

Or, the frame structure corresponding to the second carrier is different from the frame structure corresponding to the first carrier;

Or, the duplex mode corresponding to the second carrier is different from the duplex mode corresponding to the first carrier;

Or, the maximum number of repetitions supported by the second carrier is different from the maximum number of repetitions supported by the first carrier;

Or, the power control parameter on the second carrier is different from the power control parameter on the first carrier;

Or, the power control mode on the second carrier is different from the power control mode on the first carrier;

Alternatively, the paging discontinuous reception period on the second carrier is different from the paging discontinuous reception period on the first carrier.
The method according to claim 8, wherein the method further comprises:

The second device sends instruction information to the first device, where the instruction information is used to indicate time-frequency resources that are allowed to be used by the third device but cannot be used by the first device, wherein the second carrier supports When the time-frequency resource is configured, the third device and the first device are in different categories, and/or the capabilities supported by the third device and the first device are different.
The method according to claim 8 or 9, wherein the method further comprises:

The second device sends one of a first synchronization signal, a paging message, a paging random access response message, a user equipment UE application for system information, or a multicast message to the first device on the second carrier. Multiple.
The method according to claim 10, wherein the characteristics of the first synchronization signal and the second synchronization signal carried on the first carrier are different.
The method according to claim 11, wherein the characteristics of the first synchronization signal and the second synchronization signal carried on the first carrier are different, comprising:

One or more of the sequence of the synchronization signal, the resource mapping position of the synchronization signal, the step size of the synchronization signal search, or the type of the synchronization signal is different.
The method according to any one of claims 8-12, wherein the method further comprises:

The second device receives one or more of a random access preamble, sounding reference signal, or demodulation reference signal from the first device on the second carrier, wherein the random access preamble It is different from the random access preamble carried on the first carrier; the sounding reference signal is different from the sounding reference signal carried on the first carrier; the demodulation reference signal is different from that carried on the first carrier The demodulation reference signal is different.
The method according to any one of claims 8-13, wherein the method further comprises:

The second device sends the downlink control information DCI to the first device on the first carrier or on the second carrier, where the number of bits occupied by the resource allocation field in the DCI is based on the The bandwidth of the two carriers is determined.
A first device, characterized in that, the first device includes: a processing module and a transceiver module;

The transceiver module is configured to receive configuration information from the second device on the first carrier;

The processing module is configured to determine the frequency domain resource corresponding to the second carrier according to the configuration information;

The transceiver module is further configured to receive data or the signaling on the second carrier; and/or, the transceiver module is further configured to transmit data or signaling on the second carrier; wherein, The second carrier satisfies one or more of the following characteristics:

The first reference signal carried on the second carrier and the second reference signal carried on the first carrier have different characteristics;

Or, the modulation mode of data or signaling corresponding to the second carrier is different from the modulation mode of data or signaling corresponding to the first carrier;

Or, the coding mode of data or signaling corresponding to the second carrier is different from the coding mode of data or signaling corresponding to the first carrier;

Or, the frame structure corresponding to the second carrier is different from the frame structure corresponding to the first carrier;

Or, the duplex mode corresponding to the second carrier is different from the duplex mode corresponding to the first carrier;

Or, the maximum number of repetitions supported by the second carrier is different from the maximum number of repetitions supported by the first carrier;

Or, the power control parameter on the second carrier is different from the power control parameter on the first carrier;

Or, the power control mode on the second carrier is different from the power control mode on the first carrier;

Alternatively, the paging discontinuous reception period on the second carrier is different from the paging discontinuous reception period on the first carrier.
The first device according to claim 15, wherein:

The transceiver module is further configured to receive indication information from the second device, where the indication information is used to indicate time-frequency resources that are allowed to be used by the third device but cannot be used by the first device, wherein the The second carrier supports the configuration of the time-frequency resources, the third device and the first device have different categories, and/or the capabilities supported by the third device and the first device are different.
The first device according to claim 15 or 16, characterized in that:

The transceiver module is further configured to receive a first synchronization signal, a paging message, a paging random access response message, a user equipment UE requesting system information or a multicast message from the second device on the second carrier One or more of.
The first device according to claim 17, wherein the characteristics of the first synchronization signal and the second synchronization signal carried on the first carrier are different.
The first device according to claim 18, wherein the characteristics of the first synchronization signal and the second synchronization signal carried on the first carrier are different, comprising:

One or more of the sequence of the synchronization signal, the resource mapping position of the synchronization signal, the step size of the synchronization signal search, or the type of the synchronization signal is different.
The first device according to any one of claims 15-19, wherein:

The transceiver module is further configured to send one or more of a random access preamble, sounding reference signal, or demodulation reference signal to the second device on the second carrier, wherein the random access The preamble is different from the random access preamble carried on the first carrier; the sounding reference signal is different from the sounding reference signal carried on the first carrier; the demodulation reference signal is different from that carried on the first carrier The demodulation reference signal carried is different.
The first device according to any one of claims 15-20, wherein:

The transceiver module is further configured to receive the downlink control information DCI from the second device on the first carrier or the second carrier;

The processing module is further configured to determine the number of bits occupied by the resource allocation field in the DCI according to the bandwidth of the second carrier.
A second device, characterized in that, the second device includes: a processing module and a transceiver module;

The processing module is configured to determine the frequency domain resource corresponding to the second carrier;

The transceiver module is configured to send configuration information to a first device on a first carrier, where the configuration information is used to determine a frequency domain resource corresponding to a second carrier;

The transceiver module is further configured to send data or the signaling on the second carrier; and/or the transceiver module is further configured to receive data or signaling on the second carrier; wherein, The second carrier satisfies one or more of the following characteristics:

The first reference signal carried on the second carrier and the second reference signal carried on the first carrier have different characteristics;

Or, the modulation mode of data or signaling corresponding to the second carrier is different from the modulation mode of data or signaling corresponding to the first carrier;

Or, the coding mode of data or signaling corresponding to the second carrier is different from the coding mode of data or signaling corresponding to the first carrier;

Or, the frame structure corresponding to the second carrier is different from the frame structure corresponding to the first carrier;

Or, the duplex mode corresponding to the second carrier is different from the duplex mode corresponding to the first carrier;

Or, the maximum number of repetitions supported by the second carrier is different from the maximum number of repetitions supported by the first carrier;

Or, the power control parameter on the second carrier is different from the power control parameter on the first carrier;

Or, the power control mode on the second carrier is different from the power control mode on the first carrier;

Alternatively, the paging discontinuous reception period on the second carrier is different from the paging discontinuous reception period on the first carrier.
The second device according to claim 22, wherein:

The transceiver module is further configured to send instruction information to the first device, where the instruction information is used to indicate time-frequency resources that are allowed to be used by a third device but cannot be used by the first device, wherein the first device The second carrier supports the configuration of the time-frequency resource, the third device and the first device have different types, and/or the capabilities supported by the third device and the first device are different.
The second device according to claim 22 or 23, wherein:

The transceiver module is further configured to send a first synchronization signal, a paging message, a paging random access response message, a user equipment UE application for system information or a multicast message to the first device on the second carrier. One or more of.
The second device according to claim 24, wherein the characteristics of the first synchronization signal and the second synchronization signal carried on the first carrier are different.
The second device according to claim 25, wherein the characteristics of the first synchronization signal and the second synchronization signal carried on the first carrier are different, comprising:

One or more of the sequence of the synchronization signal, the resource mapping position of the synchronization signal, the step size of the synchronization signal search, or the type of the synchronization signal is different.
The second device according to any one of claims 22-26, wherein:

The transceiver module is further configured to receive one or more of a random access preamble, sounding reference signal, or demodulation reference signal from the first device on the second carrier, wherein the random access The incoming preamble is different from the random access preamble carried on the first carrier; the sounding reference signal is different from the sounding reference signal carried on the first carrier; the demodulation reference signal is different from the first carrier The demodulation reference signal carried on it is different.
The second device according to any one of claims 22-27, wherein:

The transceiver module is further configured to send downlink control information DCI to the first device on the first carrier or on the second carrier, where the number of bits occupied by the resource allocation field in the DCI is based on The bandwidth of the second carrier is determined.
The method, first device or second device according to any one of claims 1-28, wherein the second carrier further satisfies the following characteristics:

The difference between the bandwidth of the second carrier and the bandwidth of the first carrier is greater than a set value, and the set value is a value greater than or equal to zero.
The method, the first device or the second device according to any one of claims 1-29, wherein the first reference signal carried on the second carrier and the second reference signal carried on the first carrier The characteristics of the signal are different, including:

One or more of the sequence of the reference signal, the manner of generating the sequence of the reference signal, the resource mapping position of the reference signal, the maximum number of ports occupied by the reference signal transmission, the period of the reference signal, or the type of the reference signal is different.
The method, first device or second device according to any one of claims 1-30, wherein the category of the first device is different from the category of the fourth device, wherein the fourth device is not A device capable of receiving the configuration information.