CN112997556A

CN112997556A - Method and device for transmitting signals

Info

Publication number: CN112997556A
Application number: CN201980071735.4A
Authority: CN
Inventors: 吴作敏
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-02-15
Filing date: 2019-02-15
Publication date: 2021-06-18
Anticipated expiration: 2039-02-15
Also published as: CN112997556B; WO2020164154A1

Abstract

The application discloses a method and equipment for transmitting signals, which provide a scheme for pairing an unlicensed spectrum with a licensed spectrum, and can improve the use flexibility of the unlicensed spectrum. The method comprises the following steps: transmitting a downlink signal to the terminal equipment on a downlink supplemental link of the unlicensed spectrum; and receiving an uplink signal aiming at the downlink signal, which is sent by the terminal equipment on an uplink supplemental link of a licensed spectrum.

Description

Method and device for transmitting signals

Technical Field

The embodiments of the present application relate to the field of communications, and in particular, to a method and an apparatus for transmitting a signal.

Background

A New Radio (NR) system may support data transmission over an unlicensed spectrum (unlicensed frequency bands), and a network device may communicate with a terminal device using resources on the unlicensed spectrum.

However, how to communicate with the terminal device by using resources on the unlicensed spectrum is an urgent problem to be solved.

Disclosure of Invention

The embodiment of the application provides a method and equipment for transmitting signals, which can provide a scheme for pairing with authorized spectrum for unauthorized spectrum.

In a first aspect, a method for transmitting a signal is provided, including: transmitting a downlink signal to the terminal equipment on a downlink supplementary carrier link of the unlicensed spectrum; and receiving an uplink signal aiming at the downlink signal, which is transmitted by the terminal equipment on an uplink supplementary link carrier of a licensed spectrum.

In a second aspect, a method for transmitting a signal is provided, wherein a carrier of an unlicensed spectrum is configured with at least one bandwidth portion BWP, a BWP includes at least one sub-band, and a bandwidth of the sub-band is an integer multiple of 20MHz or any value greater than 20MHz, the method includes: scheduling channel resources of at least one sub-band of the unlicensed spectrum; and transmitting a downlink signal to the terminal equipment on the scheduled channel resource.

In a third aspect, a network device is provided, which may perform the method in the first aspect or any optional implementation manner of the first aspect. In particular, the network device may comprise functional modules for performing the method of the first aspect described above or any possible implementation manner of the first aspect.

In a fourth aspect, there is provided a network device that may perform the method of the second aspect or any alternative implementation manner of the second aspect. In particular, the network device may comprise functional modules for performing the method of the second aspect or any possible implementation of the second aspect.

In a fifth aspect, a network device is provided that includes a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory to execute the method of the first aspect or any possible implementation manner of the first aspect.

In a sixth aspect, a network device is provided that includes a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory to execute the method of the second aspect or any possible implementation manner of the second aspect.

In a seventh aspect, a chip is provided for implementing the first aspect or the method in any possible implementation manner of the first aspect. In particular, the chip comprises a processor for calling and running a computer program from a memory, such that a device in which the chip is installed performs the method as described above in the first aspect or any possible implementation manner of the first aspect.

In an eighth aspect, a chip is provided for implementing the method of the second aspect or any possible implementation manner of the second aspect. In particular, the chip comprises a processor for calling and running a computer program from a memory, such that a device in which the chip is installed performs the method as described above in the second aspect or any possible implementation of the second aspect.

A ninth aspect provides a computer readable storage medium storing a computer program for causing a computer to perform the method of the first aspect or any possible implementation manner of the first aspect.

A tenth aspect provides a computer-readable storage medium for storing a computer program for causing a computer to perform the method of the second aspect or any possible implementation manner of the second aspect.

In an eleventh aspect, there is provided a computer program product comprising computer program instructions to cause a computer to perform the method of the first aspect or any possible implementation manner of the first aspect.

In a twelfth aspect, there is provided a computer program product comprising computer program instructions to cause a computer to perform the method of the second aspect or any possible implementation manner of the second aspect.

In a thirteenth aspect, there is provided a computer program which, when run on a computer, causes the computer to perform the method of the first aspect or any possible implementation manner of the first aspect.

In a fourteenth aspect, there is provided a computer program which, when run on a computer, causes the computer to perform the method of the second aspect or any possible implementation of the second aspect.

In a fifteenth aspect, a communication system is provided that includes a network device and a terminal device.

Wherein the network device is configured to: transmitting a downlink signal to the terminal equipment on a downlink supplementary carrier link of the unlicensed spectrum; and receiving an uplink signal aiming at the downlink signal, which is transmitted by the terminal equipment on an uplink supplementary link carrier of a licensed spectrum.

The method for pairing the uplink of the licensed spectrum and the downlink of the unlicensed spectrum can pair the SUL of the licensed spectrum and the SDL of the unlicensed spectrum, so that the unlicensed spectrum can be flexibly used.

Drawings

Fig. 1 is a schematic diagram of a possible wireless communication system to which an embodiment of the present application is applied.

Fig. 2 is a schematic diagram of a channel access method according to an embodiment of the present application.

Fig. 3 is a schematic diagram of a signal transmission manner provided in an embodiment of the present application.

Fig. 4 is a schematic diagram of a resource scheduling method according to an embodiment of the present application.

Fig. 5 is a schematic diagram of another resource scheduling manner provided in the embodiment of the present application.

Fig. 6 is a schematic diagram of another resource scheduling manner provided in the embodiment of the present application.

Fig. 7 is a schematic diagram of another signal transmission manner provided in the embodiment of the present application.

Fig. 8 is a schematic block diagram of a network device of an embodiment of the present application.

Fig. 9 is a schematic block diagram of another network device of an embodiment of the present application.

Fig. 10 is a schematic configuration diagram of a communication apparatus according to an embodiment of the present application.

Fig. 11 is a schematic structural diagram of a chip of an embodiment of the present application.

Fig. 12 is a schematic block diagram of a communication system of an embodiment of the present application.

Detailed Description

Technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: a Global System for Mobile communications (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) System, a General Packet Radio Service (GPRS), a Long Term Evolution (Long Term Evolution, LTE) System, a LTE Frequency Division Duplex (FDD) System, a LTE Time Division Duplex (TDD) System, a Long Term Evolution (Advanced) Evolution (LTE-A) System, a New Radio (New Radio, NR) System, an Evolution System of an NR System, a non-licensed-channel-Access (LTE-N) System, a non-licensed-U-NR System, a non-licensed-Universal-NR (NR) System, UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system, Wireless Local Area Network (WLAN), Wireless Fidelity (WiFi), next generation communication system, or other communication system.

Generally, conventional Communication systems support a limited number of connections and are easy to implement, however, with the development of Communication technology, mobile Communication systems will support not only conventional Communication, but also, for example, Device-to-Device (D2D) Communication, Machine-to-Machine (M2M) Communication, Machine Type Communication (MTC), and Vehicle-to-Vehicle (V2V) Communication, and the embodiments of the present application can also be applied to these Communication systems.

Optionally, the communication system in the embodiment of the present application may be applied in a Carrier Aggregation (CA), Dual Connectivity (DC), independent (SA) networking, and other scenarios.

Illustratively, a communication system 100 applied in the embodiment of the present application is shown in fig. 1. The wireless communication system 100 may include a network device 110. Network device 110 may be a device that communicates with a terminal device. Network device 110 may provide communication coverage for a particular geographic area and may communicate with terminal devices located within that coverage area. Optionally, the Network device 100 may be a Base Transceiver Station (BTS) in a GSM system or a CDMA system, a Base Station (NodeB, NB) in a WCDMA system, an evolved Node B (eNB or eNodeB) in an LTE system, a Network side device in an NR system, or a wireless controller in a Cloud Radio Access Network (CRAN), or a Network device in a relay Station, an Access point, a vehicle-mounted device, a wearable device, a Network side device in a next generation Network, or a Network device in a Public Land Mobile Network (PLMN) for future evolution, or the like.

The wireless communication system 100 also includes at least one terminal device 120 located within the coverage area of the network device 110. The terminal device 120 may be mobile or stationary. Alternatively, terminal Equipment 120 may refer to an access terminal, User Equipment (UE), subscriber unit, subscriber station, mobile station, remote terminal, mobile device, User terminal, wireless communication device, User agent, or User Equipment. An access terminal may be a cellular telephone, a cordless telephone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device having Wireless communication capabilities, a computing device or other processing device connected to a Wireless modem, a vehicle mounted device, a wearable device, a terminal device in a future 5G network or a terminal device in a future evolved PLMN, etc. Optionally, a Device to Device (D2D) communication may be performed between the terminal devices 120.

The network device 110 may provide a service for a cell, and the terminal device 120 communicates with the network device 110 through a transmission resource (e.g., a frequency domain resource or a spectrum resource) used by the cell, where the cell may be a cell corresponding to the network device 110 (e.g., a base station), and the cell may belong to a macro base station or a base station corresponding to a Small cell (Small cell), where the Small cell may include, for example, a Metro cell (Metro cell), a Micro cell (Micro cell), a Pico cell (Pico cell), a Femto cell (Femto cell), and the like, and the Small cells have characteristics of Small coverage and low transmission power, and are suitable for providing a high-rate data transmission service.

Fig. 1 exemplarily shows one network device and two terminal devices, and optionally, the wireless communication system 100 may include a plurality of network devices and may include other numbers of terminal devices within the coverage of each network device, which is not limited in this embodiment of the present application. The wireless communication system 100 may further include other network entities such as a network controller, a mobility management entity, and the like, which is not limited in this embodiment.

Unlicensed spectrum is a nationally and regionally divided spectrum available for communication by radio devices, which is generally considered a shared spectrum, i.e., a spectrum that can be used by communication devices in different communication systems as long as the regulatory requirements set by the country or region on the spectrum are met, without requiring a proprietary spectrum license to be applied to the government.

In order for various communication systems using unlicensed spectrum for wireless communication to coexist friendly on the spectrum, some countries or regions stipulate regulatory requirements that must be met using unlicensed spectrum. For example, the communication device follows the principle of "Listen Before Talk (LBT)", that is, before the communication device performs signal transmission on a channel of an unlicensed spectrum, it needs to perform channel sensing first, and only when the channel sensing result is that the channel is idle, the communication device can perform signal transmission; if the channel sensing result of the communication device on the channel of the unlicensed spectrum is that the channel is busy, the communication device cannot transmit signals. In order to ensure fairness, in one transmission, the duration of signal transmission by a communication device using a channel of an unlicensed spectrum cannot exceed a Maximum Channel Occupancy Time (MCOT).

Maximum Channel Occupancy Time (MCOT): the maximum time length allowed for signal transmission by using the channel of the unlicensed spectrum after LBT is successful is referred to, and different MCOTs exist under different channel access priorities. The current maximum value of MCOT is 10 ms. It should be understood that the MCOT is the time taken for signal transmission.

Channel Occupancy Time (COT): refers to the time period for signal transmission using the channel of the unlicensed spectrum after LBT is successful, and the occupied channel of the signal may not be continuous. Wherein, one COT can not exceed 20ms at most, and the signal transmission in the COT occupies no more time than MCOT.

Channel occupancy time of base station (gNB-initiated COT): also called as the COT initiated by the base station, refers to the time occupied by the primary channel obtained after the LBT of the base station is successful. The channel occupation time of the base station can be used for downlink transmission and can also be used for uplink transmission of the UE when a certain condition is met.

Channel occupancy time of UE (UE-initiated COT): also called UE-initiated COT, refers to a channel occupation time obtained after a successful LBT of the UE.

Downlink (DL) opportunity: a set of downlink transmissions (i.e., including one or more downlink transmissions) by the base station, the set of downlink transmissions being continuous transmissions (i.e., there are no gaps between multiple downlink transmissions), or the set of downlink transmissions having gaps but gaps less than or equal to 16 μ s. If the gap between two downlink transmissions by the base station is greater than 16 mus, the two downlink transmissions are considered to belong to two downlink transmission opportunities.

Uplink (UL) opportunity: a set of uplink transmissions (i.e., including one or more uplink transmissions) by a UE, the set of uplink transmissions being consecutive transmissions (i.e., there are no gaps between uplink transmissions), or the set of uplink transmissions having gaps but gaps less than or equal to 16 μ β. If the gap between two uplink transmissions by the UE is greater than 16 μ s, the two uplink transmissions are considered to belong to two uplink transmission opportunities.

The communication device may have the following four types of channel access modes when performing LBT:

1) and immediately transmitting data after the switching gap is finished. This approach only works for one COT and the handover gap from the received transmission does not exceed 16 mus.

2) Single slot detection, or referred to as LBT without random backoff. And if the channel is occupied, the signal transmission can not be carried out.

3) LBT based on random backoff of a fixed Contention Window Size (CWS). The communication device may determine the CWS as CW_PWherein CW_PMay be a fixed value. The communication device can be according to CW_PGenerates a random number N. The communication device performs channel detection on the unlicensed spectrum, and performs signal transmission after the channel detection is successful in all the N time slots.

4) LBT based on random backoff of variable CWS. The communication device may determine the CWS as CW_PWherein CW_PMay be of variable value. The communication device can be according to CW_PGenerates a random number N. The communication device performs channel detection on the unlicensed spectrum, and performs signal transmission after the channel detection is successful in all the N time slots.

As can be seen from the above description, the 3rd access scheme and the 4 th access scheme differ only in whether the CWS is a fixed value or a variable value. In addition, the 3rd access mode and the 4 th access mode can further differentiate the priority of the channel access scheme according to the priority of the transmission service. The currently used channel access methods are the 1 st, 2 nd and 4 th channel access schemes.

Different channel access modes applied in different transmission scenes are different, and different signal or channel access schemes applied in different channels are also different. According to the embodiment of the application, different access schemes can be selected according to different target signals. The target signal may include at least one of: discovery Reference Signal (DRS), Open System Interconnection (OSI) in-signal, paging, Random Access Response (RAR), Physical Downlink Control Channel (PDCCH), and Physical Downlink Shared Channel (PDSCH), Physical Uplink Shared Channel (PUSCH), Physical Uplink Control Channel (PUCCH), channel Sounding Reference Signal (SRS), random access channel (random access channel, RACH), Scheduling Request (SR), channel state information (channel state information), Hybrid Automatic Request (HARQ), and HARQ response (HARQ).

For example, when the base station initiates the COT, table 1 specifies the channel access method in different cases.

TABLE 1

It should be understood that when the service includes data multiplexed transmission of a plurality of priorities, the channel access priority is determined by the data of the lowest priority among the plurality of priorities.

For another example, after the base station initiates the COT, the resources in the COT may be used for uplink transmission by the UE. If the gap between the starting position of the uplink transmission opportunity and the ending position of the downlink transmission opportunity is less than or equal to 16 mus, the UE can immediately perform the uplink transmission; if there is no downlink transmission opportunity behind the uplink transmission opportunity in the COT of the base station, the UE can perform the 2 nd channel access mode before transmission; if the gap between any two adjacent transmissions is less than or equal to 25 μ s in the COT of the base station, the UE may perform the 2 nd channel access mode. As shown in fig. 2.

For another example, when the UE initiates the COT, table 2 specifies the channel access scheme in different cases.

TABLE 2

An LTE system proposes a deployment scenario of licensed-assisted access (LAA) based on an unlicensed spectrum, where the LAA is mainly based on a working mode of carrier aggregation or dual connectivity. In both modes, the unlicensed spectrum is only used for the user plane, the traffic of all control planes is carried by the licensed carrier, and the operating network simultaneously controls the resources of the licensed band and the unlicensed band.

Since the unlicensed spectrum is generally located in a high frequency band, and cannot be used for providing wide coverage for a macro cell, and interference is uncontrollable, and cannot provide services with high reliability requirements, the unlicensed spectrum is generally combined with LTE in an LAA manner to serve as a secondary carrier in a carrier aggregation scenario. The 3rd generation partnership project (3 GPP) specification defines 4 deployment scenarios for LAAs.

Scene 1: carrier aggregation between licensed-spectrum macro cells and unlicensed-spectrum micro cells.

Scene 2: in an area covered by the unlicensed spectrum macrocell, carrier aggregation is performed between the licensed spectrum microcell and the unlicensed spectrum microcell.

Scene 3: in an area covered by a licensed spectrum macro cell, carrier aggregation is carried out between a licensed spectrum micro cell and an unlicensed spectrum micro cell.

Scene 4: in an area covered by the licensed macrocell F1, carrier aggregation is performed between the licensed-spectrum microcell F2 and the unlicensed-spectrum microcell F3. When an ideal backhaul network exists between the macro cell and the micro cell, carrier aggregation among the macro cell, the authorized spectrum micro cell and the unauthorized spectrum micro cell can be realized. The terminal device may access both the macro cell and the micro cell if allowed by the network.

In the above scenario, carrier aggregation is used as a basic operation mode to aggregate carriers on a licensed spectrum and carriers on an unlicensed spectrum.

The NR system may also support data transmission on an unlicensed spectrum, and the NR-U is a 5G unlicensed spectrum technology, and similar to LTE-LAA, may also perform carrier aggregation on carriers on a licensed spectrum and carriers on a licensed spectrum.

Unlike LAA, NR-U proposes a new scenario in the working mode, namely scenario D: and the independently deployed NR cells use the unlicensed spectrum for downlink transmission and use the licensed spectrum for uplink transmission. As a brand new application scenario of unlicensed spectrum + licensed spectrum, the mode may have a great deployment value for some operating networks, and therefore a feasible scheme for pairing carriers suitable for the scenario needs to be considered to guide the terminal device and the network device to cooperatively solve a spectrum allocation problem or a scheduling problem of uplink and downlink transmission of the NR-U system and the NR system.

At present, no clear spectrum combination mode exists to meet the requirements in the NR-U application scenario, especially for the new application scenario, scenario D.

Particularly, a downlink supplemental band (SDL) band and an uplink supplemental band (SUL) band are newly introduced into the NR spectrum, and how to pair these bands with an unlicensed spectrum becomes an urgent problem to be solved. Table 3 shows a spectrum of NR including a Time Division Duplex (TDD) band, a Frequency Division Duplex (FDD) band, an SDL band, and an SUL band. In addition, table 3 also shows the frequency band serial number of each frequency band, the frequency band information of the uplink frequency band, the frequency band information of the downlink frequency band, and the operating mode of the frequency band.

TABLE 3

NR frequency band number	Uplink frequency band	Downlink frequency band	Duplex mode
n1	1920MHz–1980MHz	2110MHz–2170MHz	FDD
n2	1850MHz–1910MHz	1930MHz–1990MHz	FDD
n3	1710MHz–1785MHz	1805MHz–1880MHz	FDD
n5	824MHz–849MHz	869MHz–894MHz	FDD
n7	2500MHz–2570MHz	2620MHz–2690MHz	FDD
n8	880MHz–915MHz	925MHz–960MHz	FDD
n12	699MHz–716MHz	729MHz–746MHz	FDD
n20	832MHz–862MHz	791MHz–821MHz	FDD
n25	1850MHz–1915MHz	1930MHz–1995MHz	FDD
n28	703MHz–748MHz	758MHz–803MHz	FDD
n34	2010MHz–2025MHz	2010MHz–2025MHz	TDD
n38	2570MHz–2620MHz	2570MHz–2620MHz	TDD
n39	1880MHz–1920MHz	1880MHz–1920MHz	TDD
n40	2300MHz–2400MHz	2300MHz–2400MHz	TDD
n41	2496MHz–2690MHz	2496MHz–2690MHz	TDD
n51	1427MHz–1432MHz	1427MHz–1432MHz	TDD
n66	1710MHz–1780MHz	2110MHz–2200MHz	FDD
n70	1695MHz–1710MHz	1995MHz–2020MHz	FDD
n71	663MHz–698MHz	617MHz–652MHz	FDD
n75	N/A	1432MHz–1517MHz	SDL
n76	N/A	1427MHz–1432MHz	SDL
n77	3300MHz–4200MHz	3300MHz–4200MHz	TDD
n78	3300MHz–3800MHz	3300MHz–3800MHz	TDD
n79	4400MHz–5000MHz	4400MHz–5000MHz	TDD
n80	1710MHz–1785MHz	N/A	SUL
n81	880MHz–915MHz	N/A	SUL
n82	832MHz–862MHz	N/A	SUL
n83	703MHz–748MHz	N/A	SUL
n84	1920MHz–1980MHz	N/A	SUL
n86	1710MHz–1780MHz	N/A	SUL

SDL indicates that only downlink transmission can be performed in the frequency band, such as n75 frequency band and n76 frequency band; the SUL indicates that only uplink transmission can be performed in the frequency band, such as the n80-n86 frequency band.

In view of this, the present disclosure provides a method for transmitting a signal, which provides a pairing manner for NR-U carriers and NR carriers. As shown in fig. 3, the method includes steps 310-320.

And S310, the network equipment sends a downlink signal to the terminal equipment on a downlink supplemental link of the unlicensed spectrum.

S320, the terminal device sends an uplink signal corresponding to the downlink signal to the network device on the uplink supplemental link of the licensed spectrum.

In this embodiment of the present application, a downlink supplemental link of an unlicensed spectrum may be paired with an uplink supplemental link of a licensed spectrum, and a network device and a terminal device may communicate with each other on an SDL band of the unlicensed spectrum and an SUL band of the licensed spectrum.

For example, the network device may send a downlink signal on the SDL of the unlicensed spectrum, and the terminal device may send an uplink signal of the downlink signal on the SUL of the licensed spectrum. Alternatively, the terminal device may send an uplink signal on the SUL of the licensed spectrum, and the network device may send a downlink signal for the uplink signal on the SDL of the unlicensed spectrum.

The uplink and downlink signals may be data, or other reference signals or signaling.

Of course, the embodiment of the present application may also pair the downlink supplemental link of the licensed spectrum with the uplink supplemental link of the unlicensed spectrum.

In addition to the pairing mode, any frequency band of the unlicensed spectrum may also be paired with any frequency band of the licensed spectrum, so as to meet the working requirement of the scene D. As shown in table 4.

TABLE 4

The frequency band information of the unlicensed spectrum and the frequency band information of the licensed spectrum in table 4 can be queried from tables defined in the protocol. For example, the frequency band information of the licensed frequency band can be queried from table 3.

Table 4 lists all possible combinations of frequency bands. Where U1 represents any TDD band of NR-U, U2 represents any SDL band of NR-U, and U3 represents any FDD band of NR-U.

The n86 band is only one example of the SUL band of NR, and the n86 band may be replaced with another SUL band of NR, such as any one of n80-n 84. The n1 band is only an example of the NR FDD band, and the n1 band may be replaced with the NR other FDD band. The n75 band is only one example of a TDD band for NR, and the n75 band may be replaced with other bands for NR.

For DL _ n86_ U1, it is indicated that the SUL band of NR can be paired with the TDD band of NR-U.

In this frequency band combination, since the U1 frequency band adopts the TDD operating mode, when applied to the scenario D, the network device may transmit downlink signals only in this frequency band. For example, no signal may be transmitted at a time when uplink transmission is required, or downlink transmission may be performed at a time when uplink transmission is originally required, so as to meet the working requirement of the scenario D.

For DC _ n86_ U2, it is indicated that the sum bins of NR can be paired with the SDL bins of NR-U.

In the frequency band combination, since the n86 frequency band is only used for uplink transmission and the U2 frequency band is also only used for uplink transmission, when the requirement of the scene D is met by the frequency band combination, the original operating mode of the frequency band does not need to be processed.

For DC _ n1(/ n78) _ U1, three cases, DC _ n1_ U1, DC _ n78_ U1 and DC _ n1_ n78_ U1, may be included, indicating that FDD and/or TDD bands of NR may be paired with TDD bands of NR-U.

In the frequency band combination, although the n1 frequency band or the n78 frequency band of the NR is in FDD or TDD duplex mode, in the combined frequency band, it is only used for uplink transmission, and although the U1 frequency band of the NR-U is in TDD duplex mode, it is only used for downlink transmission in the frequency band combination, so as to meet the working requirement of scenario D.

In this frequency band combination, if it is the combination of DC _ n1_ n78_ U1, it means that one frequency band of NR-U may correspond to a plurality of frequency bands of NR, that is, the U1 frequency band of NR-U may correspond to the n1 frequency band and the n78 frequency band of NR.

For DC _ n1(/ n78) _ U2, three cases of DC _ n1_ U2, DC _ n78_ U2 and DC _ n1_ n78_ U2 may be included, indicating that the FDD band and/or TDD band of NR may be paired with the SDL band of NR-U.

In the frequency band combination, although the n1 frequency band or the n78 frequency band of the NR is in FDD or TDD duplex mode, in the combined frequency band, the NR-U frequency band is only used for uplink transmission, and the U2 frequency band of the NR-U frequency band is only used for downlink transmission, so as to meet the working requirement of the scenario D.

In this frequency band combination, if it is the combination of DC _ n1_ n78_ U2, it means that one frequency band of NR-U may correspond to a plurality of frequency bands of NR, that is, the U2 frequency band of NR-U may correspond to the n1 frequency band and the n78 frequency band of NR.

For DC _ n86_ U3, the SUL band of NR can be paired with the FDD band of NR-U.

In the frequency band combination, the n86 frequency band of NR is only used for uplink transmission, and the U3 frequency band of NR-U is only used for downlink transmission in the combination although the FDD duplex mode is adopted, so as to meet the working requirement of scenario D.

For DC _ n1(/ n78) _ U3, three cases, DC _ n1_ U3, DC _ n78_ U3 and DC _ n1_ n78_ U3, may be included, indicating that the FDD or TDD band of NR may be paired with the FDD band of NR-U.

In the frequency band combination, although the n1 frequency band or the n78 frequency band of the NR is in FDD or TDD duplex mode, in the combined frequency band, it is only used for uplink transmission, and although the U3 frequency band of the NR-U is in TDD duplex mode, it is only used for downlink transmission in the frequency band combination, so as to meet the working requirement of scenario D.

In this frequency band combination, if it is the combination of DC _ n1_ n78_ U3, it means that one frequency band of NR-U may correspond to a plurality of frequency bands of NR, that is, the U3 frequency band of NR-U may correspond to the n1 frequency band and the n78 frequency band of NR.

For DC _ n75_ U2, the SDL bins of NR may be paired with the SUL bins of NR-U.

In the frequency band combination, the n75 frequency band of NR is only used for downlink transmission, and the U2 frequency band of NR-U is only used for uplink transmission.

For DC _ n1_ U1_ U3, the FDD band of NR can be paired with the TDD or FDD band of NR-U.

In the frequency band combination, although the n1 frequency band of the NR is in FDD duplex mode, the NR-U frequency band is only used for uplink transmission, and although the U1 frequency band or the U3 frequency band of the NR-U is in TDD or FDD duplex mode, the NR-U frequency band is only used for downlink transmission in the frequency band combination, so as to meet the operating requirement of the scenario D.

In the frequency band combination, a plurality of frequency bands representing NR-U may correspond to one frequency band of NR.

The embodiment of the application mainly aims at the following DC combination: a combination of NR-U TDD and/or SDL bands with NR or LTE SUL bands.

The following frequency band combination information, for example, DC DL _ n103/UL _ n84, and DC DL _ n101/UL _ n84_ n101, may also be employed in the embodiments of the present application. Where n103 is an example of an SDL band of an unlicensed band, and the n103 band is only used for downlink transmission. n101 is an example of a TDD or FDD frequency band of an unlicensed frequency band, and the n101 frequency band may perform uplink transmission or downlink transmission.

DC DL _ n103/UL _ n84 indicates that downlink is transmitted in the n103 band and uplink is transmitted in the n84 band.

DC DL _ n101/UL _ n84_ n101 indicates that downlink is transmitted in the n101 band, and uplink is transmitted in the n84 band and the n101 band.

Of course, in addition to the above combination, the NR-U bands may be paired with NR bands.

The terminal device may send reporting information to the network device, where the reporting information may be used to indicate at least frequency band information of an uplink of the licensed spectrum and/or frequency band information of a downlink of the unlicensed spectrum. For example, when the SUL band of NR is paired with the SDL band of NR-U, the SUL band information and the SDL band information may be reported to the network device.

The frequency band information of the SUL may include the lowest uplink frequency and the highest uplink frequency in the frequency band.

The frequency band information of the SDL may include a lowest downlink frequency and a highest downlink frequency of the frequency band.

The specific reporting mode of the terminal device can be various.

As an example, the terminal device may report the frequency band combination information to the network device, and the reported signaling may further include NR-U frequency band indication information and NR/LTE frequency band indication information, for example, frequency band sequence numbers of NR-U SDL and NR SUL may be reported to the network device, where according to the frequency band sequence numbers, uplink frequency band information and downlink frequency band information may be obtained through table lookup. The reporting mode is suitable for the deployment scene of DC or CA. The band combination information may be CA band combination information or DC band combination information.

As another example, a new frequency band may be defined for NR-U, and the terminal device may report a frequency band serial number of the new frequency band to the network device. This approach is applicable to NR-U independent deployment scenarios. The reported signaling may further include uplink and downlink frequency band information of a new NR-U frequency band, where the uplink frequency band range of the new NR-U frequency band may be the same as the NR-U SDL, and the downlink frequency band range may be the same as the NR/LTE SUL.

The frequency band sequence number of the new frequency band can be used to indicate frequency band information of uplink and downlink. For example, when the SUL band of NR is paired with the SDL band of NR-U, the band number of the new band may be used to indicate the band information of the SDL of the unlicensed band and the band information of the SUL of the licensed band. Specifically, as shown in table 5.

TABLE 5

As shown in table 5, new frequency bands may be defined for NR-U, such as a Y1 band, a Y2 band, an X1 band, and an X2 band. The above is merely an example, and the new frequency band may further include other frequency band information.

For the Y1 frequency band, the downlink frequency band information of NR-U is defined, including the lowest downlink frequency M2U_lowAnd the highest downstream frequency M2 \ u_high. The Y1 band is the SDL band.

For Y2 frequency band, uplink frequency band information of NR-U is defined, including lowest uplink frequency M1U_lowAnd the highest uplink frequency M1 \ u_high. The Y2 bands are SUL bands.

For the X1 frequency band, the uplink frequency band information and the downlink frequency band information of NR-U are defined. The downlink frequency band may adopt a Y1 frequency band, and the uplink frequency band may adopt an n86 frequency band (frequency band replating) of the original NR. The combined new frequency band may operate in FDD mode.

For the X2 frequency band, the uplink frequency band information and the downlink frequency band information of NR-U are defined. The uplink frequency band may adopt a Y2 frequency band, and the uplink frequency band may adopt an n75 frequency band of the original NR. The combined new frequency band may operate in FDD mode.

When reporting to the network device, the terminal device may directly report the frequency band sequence number of the new frequency band to the network device. For example, the X1 frequency band may be directly reported to the network device, and the X1 frequency band includes the frequency band combination information supported by the NR-U. Thus the network device may determine to pair the Y1 band of NR-U with the n86 band of NR.

The new frequency bands may comprise asymmetric frequencies, the uplink frequency band being a frequency band in the LTE or NR spectrum, and the downlink frequency band being a frequency band in the NR-U spectrum. For example, the new frequency band n104 includes a downlink frequency band of 5150 MHz-5925 MHz and an uplink frequency band of 1920 MHz-1980 MHz

In addition, the present application provides a bandwidth part (BWP)/subband allocation method for NR-U band channels, which can support more flexible bandwidths based on the existing spectrum allocation scheme.

A frequency band of NR-U can be allocated/allocated to at least one carrier, and the maximum bandwidth of one carrier in NR system can reach 100MHz according to the related regulations of the current NR system, and thus the maximum bandwidth of one carrier of NR-U can reach 100 MHz.

In addition, at least one BWP may be configured for one carrier of the NR-U, the bandwidth of the BWP being smaller than the bandwidth of the carrier. Further, the present embodiment may also configure the bandwidth of BWP as at least one sub-band. Therefore, the network equipment can schedule the BWP sub-band, so that the resource scheduling is more flexible, and the system capacity and the user rate can be improved.

In addition, at least one subband can be configured for one carrier of the NR-U in the embodiment of the application. Therefore, the network equipment directly schedules the sub-band in the carrier, so that the resource scheduling is more flexible, and the system capacity and the user rate can be improved.

Since the bandwidth of one carrier of the NR-U is larger than 20MHz, the bandwidth of one BWP may also be larger than 20 MHz. Therefore, in order to be compatible with wifi bandwidth of 20MHz, BWP bandwidth may be further allocated, and specific allocation manners may be various.

As an example, the usage may be scheduled in terms of a sub-band of a minimum unit bandwidth or an integer multiple thereof.

If the band width of the NR-U is 100MHz, it can be specified that each sub-band can be fixed to 20MHz, and a band can have 5 sub-bands of 20MHz at most. If the channel access is performed in a Frequency Division Multiplexing (FDM) manner, up to 5 channels can be simultaneously accessed.

As yet another example, the scheduled use may be in accordance with a flexible bandwidth of subbands. The subbands may support contiguous or non-contiguous spectrum aggregation, and the bandwidths of the subbands may differ for different scheduling times.

For example, the embodiment of the present application may support a sub-band bandwidth of any size, for example, a sub-band bandwidth of 30MHz or 50MHz, in addition to a sub-band bandwidth of an integer multiple of 20 MHz.

In addition, the bandwidths of the multiple sub-bands in one frequency band may be the same or different. In other words, if a frequency band includes at least two sub-bands, the bandwidths of any two sub-bands may be the same, or the bandwidths of any two sub-bands may not be the same.

For example, a frequency band includes two sub-bands, one of which may have a bandwidth of 40MHz and the other of which may have a bandwidth of 30 MHz.

Next, the subband allocation method in the embodiment of the present application is also applicable to BWP. For example, one BWP may be allocated as a plurality of sub-bands in the above manner, and the bandwidth of one sub-band may be an integer multiple of 20MHz, or an arbitrary value greater than 20 MHz.

For example, if a bandwidth of a BWP is 45MHz, the BWP may be allocated to a 20MHz sub-band and a 15MHz sub-band, and the network device may implement flexible scheduling for the BWP. Such as one BWP at a time, or one subband in BWP, or two subbands in BWP simultaneously, etc.

The pairing method of the licensed spectrum and the unlicensed spectrum in the embodiment of the present application is not specifically limited, and may be, for example, pairing at least one carrier of at least one licensed frequency band and at least one carrier of at least one unlicensed frequency band. At least one carrier may belong to the same licensed frequency band or may belong to different licensed frequency bands. At least one carrier of the unlicensed frequency band may belong to the same licensed frequency band or may belong to different licensed frequency bands.

Taking the SUL of the licensed spectrum and the SDL of the unlicensed spectrum as an example for illustration, the SUL of the licensed spectrum may include at least one carrier, and in particular, the carrier may represent a carrier band, and the SDL of the unlicensed band may include at least one carrier. The network device may transmit an uplink signal to the terminal device on at least one carrier of the unlicensed spectrum, and the terminal device may transmit an uplink signal for the uplink signal to the network device on the at least one carrier of the licensed spectrum.

When at least one uplink carrier frequency band corresponds to at least one downlink carrier frequency band, the embodiment of the present application provides a scheduling manner of a network device for spectrum resources, which can increase the usage rate of an unlicensed spectrum.

For example, 2 or more than 2 uplink carrier bands of the licensed spectrum may correspond to one downlink carrier band of the unlicensed spectrum. It is assumed that the uplink carrier band of the licensed spectrum includes a first band and a second band, and the downlink carrier band of the unlicensed spectrum includes a band X. The first frequency band and the second frequency band may belong to the same operation network or may belong to different operation networks.

The uplink frequency band may be a frequency band of an uplink supplemental link of the licensed spectrum, and the downlink frequency band may be a frequency band of a downlink supplemental link of the unlicensed spectrum.

The network device may schedule channel resources of the unlicensed spectrum in a time-division multiplexing (TDM) and/or FDM manner. Fig. 4 shows a scheme of embodiment 1, where the first frequency band and the second frequency band belong to resource scheduling situations of different operating networks. In this case, the network devices corresponding to the user a and the user B are different.

A, operating a network: a first frequency band + frequency band X; b, operating a network: second band + band X.

The network device may schedule channel resources of the same subband on one carrier of the downlink frequency band in a TDM manner, and send a downlink signal to the terminal device on the scheduled resources.

The user A sends an uplink signal a to the network equipment on the first frequency band, the user B sends an uplink signal B to the network equipment on the second frequency band, and for the uplink signal a and the uplink signal B, the network equipment needs to reply on the frequency band X of the unlicensed frequency band.

As embodiment 1-1, a network device may schedule channel resources for user a and user B on a sub-band X1 of frequency band X in a TDM manner. For example, as shown in FIG. 4, the network device may schedule resources on sub-band X1 for time 1, 2, 6, 7 for user A and sub-band X1 for time 3, 4, 5 for user B.

As embodiment 1-2, the network device may schedule channel resources of different sub-bands for user a and user B on frequency band X in an FDM manner. For example, as shown in FIG. 4, the network device may schedule channel resources for sub-band X3 for user A and sub-band X1 for user B. For the case that one carrier is configured as a frequency band of multiple BWPs, the channel resources of different sub-bands may be the channel resources of different sub-bands in one BWP. For the case where one carrier is configured into multiple sub-bands, the channel resources of the different sub-bands may be the channel resources of the different sub-bands on one carrier. This description is equally applicable to the different subbands mentioned below.

As embodiment 1-3, the network device may also schedule channel resources of different sub-bands for user a and user B on the frequency band X in a TDM + FDM manner. For example, as shown in fig. 4, the network device may schedule channel resources for user a at sub-band X1 at times 2, 4, and 5, and at sub-band X2 and sub-band 3 at times 6 and 7. The network device schedules channel resources for user B at sub-band X1 at times 1 and 2 and sub-band X2 at times 1, 2, 3, 4, and 5.

For embodiment 1-3, the network device may schedule resources for user a and user B in a time division multiplexing manner on subband X-1, and may schedule resources for user a and user B in a frequency division multiplexing manner at times 3, 4, and 5.

Fig. 4 is only an example, and the bandwidths of the multiple subbands in the frequency band X may be the same or different. For example, the bandwidths of the sub-band X1, the sub-band X2, and the sub-band X3 may all be the same. For another example, the bandwidths of the sub-band X1, the sub-band X2, and the sub-band X3 are different, or the bandwidths of two of the sub-band X1, the sub-band X2, and the sub-band X3 are the same, but different from the bandwidth of the remaining one of the sub-bands. In addition, the bandwidth of the sub-band may also be different in different scheduling windows.

Alternatively, the sub-band X1, the sub-band X2, and the sub-band X3 may be continuous or discontinuous in the frequency domain.

As embodiment 2, for the case that the first frequency band and the second frequency band belong to the same operating network, the network device may also schedule resources for the user a and the user B in the manner shown in fig. 4.

A, operating a network: first band/second band + band X, or first band + second band + band X.

As embodiment 2-1, the network device may contend to access the channel resource of the frequency band X in a TDM manner, and the network device may schedule the channel resource occupying one sub-band of the frequency band X in a time-sharing manner, and schedule the channel resource of the first frequency band or the second frequency band for the user.

As embodiment 2-2, the network device may contend to access the channel resource of the frequency band X in the FDM manner, and the network device may perform frequency division scheduling on the channel resource of different subbands occupying the frequency band X, and schedule the resource of the first frequency band and/or the second frequency band for the user.

As embodiment 2-3, the network device may contend to access the channel resource of the frequency band X in a TDM + FDM manner, and the network device may schedule the channel resource of different sub-bands in the frequency band X for time division and/or frequency division, and schedule the channel resource of the first frequency band and/or the second frequency band for the user. The scheduled channel resource may be a set of one or more subbands. The set of subbands may be continuous or discontinuous subbands, and the channel bandwidths of the subbands in different scheduling times may be different.

In addition, different from embodiment 1, the first frequency band and the second frequency band allocated to at least one user are subjected to resource scheduling through the same operating network. Here, the capability (UE capability) signaling for reporting the supported band combination of the UE is also different from that in embodiment 1. Since the first frequency band and the second frequency band both belong to the same operation network, the terminal device reports the support capability of the first frequency band and/or the second frequency band when reporting the frequency band combination capability. In embodiment 1, since the first frequency band and the second frequency band belong to different operation networks, the terminal device only reports the support capability of one of the frequency bands.

As an implementation, the network device may simultaneously schedule resources on the first frequency band and the second frequency band for one user. As shown in fig. 5, the network device schedules resources on the first frequency band and the second frequency band for the user a at the same time, and the user a may send uplink signals to the network device on the first frequency band and the second frequency band. The network device may send a downlink signal to the user a in the frequency band X of the unlicensed frequency band. For example, in case 1, the network device may transmit downlink signals to user a on multiple subbands of band X (subband 1, subband 2, and subband 3), or in case 2, the network device may transmit downlink signals to user a on one subband of band X (subband X2).

For the case that the first frequency band and the second frequency band belong to the same operating network, when the network device schedules resources for the user, the following scheduling cases may be included: a first band + sub-band X1+ sub-band X2, a second band + sub-band X1+ sub-band X2, a first band + second band + sub-band X1, a first band + second band + sub-band X2, a first band + second band + sub-band X1+ sub-band X2. Different from embodiment 1, all the frequency band combinations may be scheduled for the same user.

In the scheme shown in fig. 5, when the network device schedules multiple subbands (or referred to as subband set) on the unlicensed spectrum for user a, the multiple subbands may be continuous or discontinuous subbands. The bandwidths of the multiple sub-bands may be the same or different, for example, the bandwidths of the sub-band X1 and the sub-band X2 may be the same or different. In addition, the bandwidth of the sub-band may be different in different scheduling time. Therefore, the scheme of the embodiment of the application can realize flexible scheduling of the unlicensed spectrum resources.

In addition, the same authorized frequency band can be paired with 2 or more unauthorized frequency bands. As in example 3 shown in fig. 6. It is assumed that the uplink frequency band includes a first frequency band, and the downlink frequency band includes a third frequency band and a fourth frequency band.

The network device may schedule the channel resource of at least one sub-band of the third frequency band or the fourth frequency band in a TDM and/or FDM manner, and send a downlink signal to the terminal device on the scheduled channel resource.

As embodiment 3-1, the network device may perform channel access in a TDM manner, and the network device may schedule a subband resource in the third frequency band or the fourth frequency band and a channel resource in the first frequency band for the user. As shown in fig. 6, both user a and user B send uplink signals to the network device in the first frequency band, and the network device may schedule channel resources on a subband X3-2 in the third frequency band and a subband X4-1 in the fourth frequency band for user a and user B in a TDM manner.

Specifically, the user a may send an uplink signal to the network device at the 5 th and 6 th times of the n1-1 spectrum of the first frequency band, and the network device may schedule, for the user a, channel resources at the 5 th and 6 th times of the sub-band X3-2 of the third frequency band and the sub-band X4-1 of the fourth frequency band, and send a downlink signal to the user a on the scheduled sub-band resources. User B may transmit uplink signals to the network device at times 1, 2, 3, 4, and 7 of the n1-2 spectrum in the first frequency band, and the network device may schedule channel resources at times 1, 2, 3, 4, and 7 of the sub-band X3-2 in the third frequency band and the sub-band X4-1 in the fourth frequency band for user B.

As embodiment 3-2, the network device may perform channel access in an FDM manner, and the network device may schedule different subband resources in the third frequency band or the fourth frequency band and a channel resource in the first frequency band for the user. As shown in fig. 6, both user a and user B send uplink signals to the network device in the first frequency band, and the network device may schedule channel resources on a sub-band X3-2 of the third frequency band and a sub-band X4-1 of the fourth frequency band for user a and user B in an FDM manner, respectively.

Specifically, user a may transmit an uplink signal to the network device on the n1-1 spectrum of the first frequency band, and the network device may schedule channel resources on sub-band X3-2 of the third frequency band for user a. User B may transmit an uplink signal to the network device on the n1-2 spectrum of the first frequency band, and the network device may schedule channel resources on sub-band X4-1 of the fourth frequency band for user B.

As embodiment 3-3, the network device may perform channel access in a TDM + FDM manner, and the network device may schedule different subband resources in the third frequency band or the fourth frequency band and channel resources in the first frequency band for the user. As shown in fig. 6, both user a and user B send uplink signals to the network device in the first frequency band, and the network device may schedule channel resources on different subbands for user a and user B in a TDM + FDM manner.

Specifically, user a may transmit uplink signals to the network device at time 1, 2, 3, 4, 5, 6 on the n1-1 spectrum of the first frequency band, and the network device may schedule, for user a, channel resources at time 5, 6 on subband X3-1 of the third frequency band, subband X4-1 of the fourth frequency band, and channel resources at time 1, 2, 3, 4 on subband X3-2 of the third frequency band. User B may transmit uplink signals to the network device at times 1, 2, 3, 4, and 7 on the n1-2 spectrum of the first frequency band, and the network device may schedule channel resources at times 1, 2, 3, 4, and 7 on subband X4-1 of the fourth frequency band and channel resources at time 7 on subband X3-2 of the third frequency band for user B.

Optionally, when the network device schedules channel resources on the unlicensed spectrum for one terminal device, the scheduling may be performed in a carrier aggregation or dual connectivity manner. In particular, the network device may schedule channel resources of at least one BWP or channel resources of at least one subband. The channel resource of the at least one sub-band may be a channel resource of at least one sub-band in one BWP, or may be a channel resource of at least one sub-band in multiple BWPs.

Optionally, when the network device schedules channel resources on the unlicensed spectrum for at least two terminal devices, the scheduling may be performed in a time division multiplexing and/or frequency division multiplexing manner.

Mode 1, since the current NR system only allows simultaneous activation of one BWP resource in one carrier, BWPs within the same unlicensed spectrum carrier can only be activated in a TDM manner. Therefore, the network device may schedule channel resources of different BWPs within one carrier for at least two terminal devices in a time division multiplexing manner. For example, the network device may schedule channel resources on a first BWP on one carrier for terminal device a at a first time and schedule channel resources on a second BWP on the same carrier for terminal device b at a second time.

In manner 2, the above described sub-band allocation manner may be adopted, and the bandwidth of BWP may be further allocated. At least two sub-bands may be included in one BWP, and the network device may schedule channel resources of different sub-bands in the same BWP for at least two terminal devices in a time division multiplexing and/or frequency division multiplexing manner.

For example, assuming a bandwidth of 80MHz for a BWP, the BWP may include 4 20MHz sub-bands. The network device may schedule the channel resource of one subband for the terminal device in a time division multiplexing manner, or the network device may schedule the channel resource of different subbands in one BWP for the terminal device simultaneously in a frequency division multiplexing manner, or the network device may schedule the channel resource of different subbands in one BWP for the terminal device simultaneously in a time division multiplexing and frequency division multiplexing manner.

The scheduling method of the method 2 is more flexible than the method 1. Mode 1 can schedule only 1 BWP at a time, that is, downlink resources can be scheduled for only one terminal device at a time. However, after allocating the BWP resources to multiple sub-band resources, the network device may schedule the multiple sub-band resources in one BWP more flexibly. For example, different subband resources can be scheduled for different terminal devices simultaneously in a frequency division multiplexing manner, so that the spectrum utilization rate can be increased, and a feasible scheme is provided for a new NR-U scene.

The embodiment of the application allows an asymmetric frequency spectrum pairing mode to be used, and compared with the original FDD symmetric frequency band pairing or TDD frequency band uplink and downlink scheduling mode, the method can improve the downlink speed, improve new possibility for large bandwidth service, and further develop the use range and scene of the authorized frequency spectrum of the operating network.

The network device may schedule channel resources of the unlicensed spectrum in a contention access manner by means of LBT. The specific access method may be any one of the above-described four channel access methods.

The embodiment of the present application further provides another method for transmitting a signal, as shown in fig. 7, the method includes steps S710-S720. The terminal device and the network device in the method may transmit signals over a licensed spectrum and an unlicensed spectrum, where one carrier of the unlicensed spectrum is configured with at least one BWP, and one BWP may include at least one sub-band, and a bandwidth of one sub-band may be an integer multiple of 20MHz, or may also be any value greater than 20 MHz. Of course, the bandwidth of one sub-band may be any value less than 20MHz, for example, the bandwidth of one sub-band included in one BWP is 15 MHz.

S710, the network equipment schedules channel resources of at least one sub-band of the unlicensed spectrum.

S720, the network equipment sends downlink signals to the terminal equipment on the scheduled channel resources.

Optionally, the carrier of the unlicensed spectrum may be a carrier on an FDD frequency band, or may also be a carrier on an SUL frequency band.

Alternatively, a BWP may include at least two sub-bands, where the bandwidth of any two sub-bands is the same or the bandwidth of any two sub-bands is different.

The embodiment of the present application provides a spectrum allocation method, which may allocate one carrier of an unlicensed spectrum to multiple BWPs, and may further allocate one BWP to multiple sub-bands. When the network device schedules the resources on the unlicensed spectrum, the network device may schedule the resources on the subbands, and compared with scheduling carrier resources or BWP resources, the scheduling method is more flexible, and the utilization rate of the spectrum can be improved.

Corresponding technical feature contents not described in the method shown in fig. 7 may be referred to the description in the method shown in fig. 3, and are not described here again in order to avoid repetition.

The method for transmitting signals provided by the embodiments of the present application is described above in detail, and the apparatus of the embodiments of the present application is described below in detail with reference to fig. 8 to 12, and the apparatus embodiments and the method embodiments correspond to each other, so that the parts not described in detail can be referred to the foregoing method embodiments.

Fig. 8 is a schematic block diagram of a network device 800 according to an embodiment of the present application. The network device 800 shown in fig. 8 may be a network device in a method embodiment. The network device may include a communication unit 810.

A communication unit 810, configured to transmit a downlink signal to a terminal device on a downlink supplemental subcarrier link of an unlicensed spectrum.

A communication unit 810, further configured to receive an uplink signal, which is sent by the terminal device on an uplink supplemental link of a licensed spectrum and is directed to the downlink signal.

Optionally, the communication unit 810 is further configured to receive reporting information sent by the terminal device, where the reporting information is used to indicate the frequency band information of the uplink supplemental link and the frequency band information of the downlink supplemental link.

Optionally, the reporting information includes frequency band information of a downlink supplemental link of the unlicensed frequency band, and frequency band combination information of the uplink supplemental link and the downlink supplemental link.

Optionally, the frequency band combination information includes carrier aggregation frequency band combination information or dual connectivity frequency band combination information.

Optionally, the reporting information includes a frequency band serial number of the unlicensed spectrum, where the frequency band serial number is used to indicate frequency band information of the uplink supplemental link and frequency band information of the downlink supplemental link.

Optionally, a carrier of the downlink supplemental link is configured with at least one bandwidth portion BWP, where a BWP includes at least one sub-band, and a bandwidth of a sub-band is an integer multiple of 20MHz, or is an arbitrary value greater than 20 MHz.

Optionally, a BWP includes at least two sub-bands, and the bandwidths of any two sub-bands are the same or the bandwidths of any two sub-bands are different.

Optionally, the uplink supplemental link includes at least one frequency band, and the downlink supplemental link includes at least one frequency band.

Optionally, the uplink supplemental link includes a first licensed frequency band and a second licensed frequency band, the downlink supplemental link includes an unlicensed frequency band, and the network device further includes a processing unit, where the processing unit is configured to:

scheduling channel resources of a sub-band on a carrier of the downlink supplemental link in a time division multiplexing mode; or the like, or, alternatively,

scheduling channel resources of different sub-bands on one carrier of the downlink supplemental link in a frequency division multiplexing mode; or the like, or, alternatively,

scheduling channel resources of different sub-bands on one carrier of the downlink supplemental link in a time division multiplexing and frequency division multiplexing mode;

wherein the downlink signal is transmitted on the scheduled channel resource of the downlink supplemental link.

Optionally, when scheduling a terminal device, the processing unit is further configured to schedule channel resources of at least one BWP or at least one subband in a carrier aggregation or dual connectivity manner.

Optionally, when scheduling at least two terminal devices, the processing unit is further configured to:

scheduling channel resources of different BWPs in one carrier for the at least two terminal devices in a time division multiplexing mode; or the like, or, alternatively,

and scheduling channel resources of different sub-bands in the same BWP for the at least two terminal devices in a time division multiplexing and/or frequency division multiplexing mode.

Optionally, the first frequency band and the second frequency band belong to the same operating network, or the first frequency band and the second frequency band belong to different operating networks.

Optionally, if the first frequency band and the second frequency band belong to the same operating network, the communication unit is further configured to:

and transmitting a first downlink signal in one or more sub-bands of the downlink supplemental link, where the first downlink signal is a downlink signal for receiving an uplink signal transmitted by the terminal device in the first frequency band or the second frequency band.

Optionally, the uplink supplemental link includes a frequency band, the downlink supplemental link includes a third frequency band and a fourth frequency band, and the network device further includes a processing unit, where the processing unit is configured to schedule, through time division multiplexing and/or frequency division multiplexing, channel resources of at least one sub-band of the third frequency band or the fourth frequency band, where the downlink signal is sent on the scheduled channel resources of the downlink supplemental link.

It should be understood that the network device 800 may perform corresponding operations performed by the network device in the above method, and therefore, for brevity, detailed description is omitted here.

Fig. 9 is a schematic block diagram of another network device 900 provided in an embodiment of the present application. Network device 900 shown in fig. 9 may be a network device in a method embodiment. The network device may schedule channel resources on an unlicensed spectrum and a licensed spectrum, where a carrier of the unlicensed spectrum is configured with at least one bandwidth portion BWP, and a BWP includes at least one sub-band, and a bandwidth of the sub-band is an integer multiple of 20MHz or any value greater than 20 MHz. The network device 900 may include a processing unit 910 and a communication unit 920.

A processing unit 910 configured to schedule channel resources of at least one sub-band of the unlicensed spectrum.

A communication unit 920, configured to send a downlink signal to the terminal device on the scheduled channel resource.

It should be understood that the network device 900 can perform the corresponding operations performed by the network device in the above-described method, and therefore, for brevity, the description is not repeated herein.

Fig. 10 is a schematic structural diagram of a communication device 1000 according to an embodiment of the present application. The communication device 1000 shown in fig. 10 includes a processor 1010, and the processor 1010 may call and execute a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in fig. 10, the communication device 1000 may further include a memory 1020. From the memory 1020, the processor 1010 may call and execute a computer program to implement the method in the embodiment of the present application.

The memory 1020 may be a separate device from the processor 1010 or may be integrated into the processor 1010.

Optionally, as shown in fig. 10, the communication device 1000 may further include a transceiver 1030, and the processor 1010 may control the transceiver 1030 to communicate with other devices, and specifically, may transmit information or data to the other devices or receive information or data transmitted by the other devices.

The transceiver 1030 may include a transmitter and a receiver, among others. The transceiver 1030 may further include an antenna, and the number of antennas may be one or more.

Optionally, the communication device 1000 may specifically be a terminal device in the embodiment of the present application, and the communication device 1000 may implement a corresponding process implemented by the terminal device in each method in the embodiment of the present application, and for brevity, details are not described here again.

Optionally, the communication device 1000 may specifically be a network device in the embodiment of the present application, and the communication device 1000 may implement a corresponding process implemented by the network device in each method in the embodiment of the present application, and for brevity, details are not described here again.

Fig. 11 is a schematic structural diagram of a chip of an embodiment of the present application. The chip 1100 shown in fig. 11 includes a processor 1110, and the processor 1110 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in fig. 11, the chip 1100 may further include a memory 1120. From the memory 1120, the processor 1111 may call up and run a computer program to implement the method in the embodiment of the present application.

The memory 1120 may be a separate device from the processor 1110, or may be integrated into the processor 1110.

Optionally, the chip 1100 may also include an input interface 1130. The processor 1110 may control the input interface 1130 to communicate with other devices or chips, and in particular, may obtain information or data sent by other devices or chips.

Optionally, the chip 1100 may further include an output interface 1140. The processor 1110 may control the output interface 1140 to communicate with other devices or chips, and in particular, may output information or data to the other devices or chips.

Optionally, the chip may be applied to the terminal device in the embodiment of the present application, and the chip may implement the corresponding process implemented by the terminal device in each method in the embodiment of the present application, and for brevity, details are not described here again.

Optionally, the chip may be applied to the network device in the embodiment of the present application, and the chip may implement the corresponding process implemented by the network device in each method in the embodiment of the present application, and for brevity, details are not described here again.

It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as system-on-chip, system-on-chip or system-on-chip, etc.

It should be understood that the processor of the embodiments of the present application may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The Processor may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.

It will be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of example, but not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic random access memory (DDR SDRAM), Enhanced Synchronous SDRAM (ESDRAM), Synchronous link SDRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It should be understood that the above memories are exemplary but not limiting illustrations, for example, the memories in the embodiments of the present application may also be Static random access memory (Static RAM, SRAM), Dynamic random access memory (Dynamic RAM, DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic random access memory (Double Data Rate SDRAM, DDR SDRAM), Enhanced Synchronous SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Direct Rambus RAM (DR RAM), and the like. That is, the memory in the embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

Fig. 12 is a schematic block diagram of a communication system 1200 according to an embodiment of the present application. As shown in fig. 12, the communication system 1200 includes a network device 1210 and a terminal device 1220.

Wherein the network device 1210 is configured to: transmitting a downlink signal to the terminal equipment on a downlink supplemental link of the unlicensed spectrum; and receiving an uplink signal aiming at the downlink signal, which is sent by the terminal equipment on an uplink supplemental link of a licensed spectrum.

Wherein the terminal device 1220 is configured to: receiving a downlink signal sent by network equipment on a downlink supplemental link of an unlicensed spectrum; and transmitting an uplink signal aiming at the downlink signal to a network device on an uplink supplementary link of the authorized spectrum.

Optionally, the network device 1210 may be configured to implement corresponding functions implemented by the network device in the foregoing methods, and the components of the network device 1210 may be as shown in the network device in fig. 8 or fig. 9, which are not described herein again for brevity.

Optionally, the terminal device 1220 may be configured to implement the corresponding functions implemented by the terminal device in the above-described method.

The embodiment of the application also provides a computer readable storage medium for storing the computer program. Optionally, the computer-readable storage medium may be applied to the network device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the network device in each method in the embodiment of the present application, which is not described herein again for brevity. Optionally, the computer-readable storage medium may be applied to the terminal device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the terminal device in each method in the embodiment of the present application, which is not described herein again for brevity.

Embodiments of the present application also provide a computer program product comprising computer program instructions. Optionally, the computer program product may be applied to the network device in the embodiment of the present application, and the computer program instructions enable the computer to execute corresponding processes implemented by the network device in the methods in the embodiment of the present application, which are not described herein again for brevity. Optionally, the computer program product may be applied to the terminal device in the embodiment of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the terminal device in the methods in the embodiment of the present application, which are not described herein again for brevity.

The embodiment of the application also provides a computer program. Optionally, the computer program may be applied to the network device in the embodiment of the present application, and when the computer program runs on a computer, the computer is enabled to execute the corresponding process implemented by the network device in each method in the embodiment of the present application, and for brevity, details are not described here again. Optionally, the computer program may be applied to the terminal device in the embodiment of the present application, and when the computer program runs on a computer, the computer is enabled to execute the corresponding process implemented by the terminal device in each method in the embodiment of the present application, and for brevity, details are not described here again.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

It should also be understood that in the present embodiment, "B corresponding to" means that B is associated with a, from which B can be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may be determined from a and/or other information.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the unit is only one logical functional division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

A method of transmitting a signal, comprising:

transmitting a downlink signal to the terminal equipment on a downlink supplemental link of the unlicensed spectrum;

and receiving an uplink signal aiming at the downlink signal, which is sent by the terminal equipment on an uplink supplemental link of a licensed spectrum.
The method of claim 1, further comprising:

and receiving reporting information sent by the terminal equipment, wherein the reporting information is used for indicating the frequency band information of the uplink supplemental link and the frequency band information of the downlink supplemental link.
The method of claim 2, wherein the reporting information includes frequency band information of a downlink supplemental link of the unlicensed frequency band and frequency band combination information of the uplink supplemental link and the downlink supplemental link.
The method of claim 3, wherein the frequency band combination information comprises carrier aggregation frequency band combination information or dual connectivity frequency band combination information.
The method of claim 2, wherein the reporting information includes a frequency band sequence number of the unlicensed spectrum, and wherein the frequency band sequence number is used to indicate the frequency band information of the uplink supplemental link and the frequency band information of the downlink supplemental link.
The method according to any of claims 1-5, wherein one carrier of the downlink supplemental link is configured with at least one bandwidth part BWP, wherein a BWP comprises at least one sub-band, and wherein a bandwidth of a sub-band is an integer multiple of 20MHz, or any value larger than 20 MHz.
The method of claim 6, wherein a BWP comprises at least two sub-bands, and wherein the bandwidths of any two sub-bands are the same or the bandwidths of any two sub-bands are different.
The method of any of claims 1-7, wherein the uplink supplemental link comprises at least one frequency band and the downlink supplemental link comprises at least one frequency band.
The method of any of claims 6-8, wherein the uplink supplemental link comprises a first licensed frequency band and a second licensed frequency band, and wherein the downlink supplemental link comprises an unlicensed frequency band, the method further comprising:

scheduling channel resources of a sub-band on a carrier of the downlink supplemental link in a time division multiplexing mode; or the like, or, alternatively,

scheduling channel resources of different sub-bands on one carrier of the downlink supplemental link in a frequency division multiplexing mode; or the like, or, alternatively,

scheduling channel resources of different sub-bands on one carrier of the downlink supplemental link in a time division multiplexing and frequency division multiplexing mode;

wherein the downlink signal is transmitted on the scheduled channel resource of the downlink supplemental link.
Method according to claim 9, wherein different sub-bands on said one carrier belong to sub-bands in one BWP.
The method according to claim 9 or 10, wherein when scheduling a terminal device, the method further comprises:

and scheduling channel resources of at least one BWP or at least one sub-band by means of carrier aggregation or dual connectivity.
The method according to any of claims 9-11, wherein when scheduling at least two terminal devices, the method further comprises:

scheduling channel resources of different BWPs in one carrier for the at least two terminal devices in a time division multiplexing mode; or the like, or, alternatively,

and scheduling channel resources of different sub-bands in the same BWP for the at least two terminal devices in a time division multiplexing and/or frequency division multiplexing mode.
The method according to any of claims 9-12, wherein the first frequency band and the second frequency band belong to a same operating network, or wherein the first frequency band and the second frequency band belong to different operating networks.
The method according to any of claims 9-13, wherein if the first frequency band and the second frequency band belong to the same operating network, the method further comprises:

and transmitting a first downlink signal in one or more sub-bands of the downlink supplemental link, where the first downlink signal is a downlink signal for receiving an uplink signal transmitted by the terminal device in the first frequency band or the second frequency band.
The method of any of claims 6-8, wherein the uplink supplemental link comprises a frequency band, and wherein the downlink supplemental link comprises a third frequency band and a fourth frequency band, the method further comprising:

and scheduling channel resources of at least one sub-band of the third frequency band or the fourth frequency band by time division multiplexing and/or frequency division multiplexing, wherein the downlink signal is transmitted on the scheduled channel resources of the downlink supplemental link.
A method of transmitting a signal, wherein a carrier of an unlicensed spectrum is configured with at least one bandwidth portion BWP, a BWP comprising at least one sub-band, a bandwidth of a sub-band being an integer multiple of 20MHz or any value greater than 20MHz, the method comprising:

scheduling channel resources of at least one sub-band of the unlicensed spectrum;

and transmitting a downlink signal to the terminal equipment on the scheduled channel resource.
The method of claim 16, wherein a BWP comprises at least two sub-bands, and wherein the bandwidths of any two sub-bands are the same or the bandwidths of any two sub-bands are different.
A network device, comprising:

a communication unit, configured to send a downlink signal to a terminal device on a downlink supplemental link of an unlicensed spectrum;

the communication unit is further configured to receive an uplink signal, which is sent by the terminal device on an uplink supplemental link of a licensed spectrum and is directed to the downlink signal.
The network device of claim 18, wherein the communication unit is further configured to:

and receiving reporting information sent by the terminal equipment, wherein the reporting information is used for indicating the frequency band information of the uplink supplemental link and the frequency band information of the downlink supplemental link.
The network device of claim 19, wherein the reporting information includes frequency band information of a downlink supplemental link of the unlicensed frequency band, and frequency band combination information of the uplink supplemental link and the downlink supplemental link.
The network device of claim 20, wherein the band combination information comprises carrier aggregation band combination information or dual connectivity band combination information.
The network device of claim 20, wherein the reporting information includes a frequency band sequence number of the unlicensed spectrum, and wherein the frequency band sequence number is used to indicate frequency band information of the uplink supplemental link and frequency band information of the downlink supplemental link.
The network device according to any of claims 18-22, wherein one carrier of the downlink supplemental link is configured with at least one bandwidth part BWP, and wherein a BWP comprises at least one sub-band, and wherein a bandwidth of a sub-band is an integer multiple of 20MHz, or any value larger than 20 MHz.
The network device of claim 23, wherein a BWP comprises at least two sub-bands, and wherein the bandwidths of any two sub-bands are the same or the bandwidths of any two sub-bands are different.
The network device of any of claims 18-24, wherein the uplink supplemental link comprises at least one frequency band and the downlink supplemental link comprises at least one frequency band.
The network device of any one of claims 23-25, wherein the uplink supplemental link comprises a first licensed frequency band and a second licensed frequency band, wherein the downlink supplemental link comprises an unlicensed frequency band, and wherein the network device further comprises a processing unit configured to:

scheduling channel resources of a sub-band on a carrier of the downlink supplemental link in a time division multiplexing mode; or the like, or, alternatively,

scheduling channel resources of different sub-bands on one carrier of the downlink supplemental link in a frequency division multiplexing mode; or the like, or, alternatively,

scheduling channel resources of different sub-bands on one carrier of the downlink supplemental link in a time division multiplexing and frequency division multiplexing mode;

wherein the downlink signal is transmitted on the scheduled channel resource of the downlink supplemental link.
The network device of claim 26, wherein different subbands on the one carrier belong to subbands in one BWP.
The network device according to claim 26 or 27, wherein when scheduling a terminal device, the processing unit is further configured to:

and scheduling channel resources of at least one BWP or at least one sub-band by means of carrier aggregation or dual connectivity.
The network device of any of claims 26-28, wherein when scheduling at least two terminal devices, the processing unit is further configured to:

scheduling channel resources of different BWPs in one carrier for the at least two terminal devices in a time division multiplexing mode; or the like, or, alternatively,

and scheduling channel resources of different sub-bands in the same BWP for the at least two terminal devices in a time division multiplexing and/or frequency division multiplexing mode.
The network device of any one of claims 26-29, wherein the first frequency band and the second frequency band belong to a same operating network, or wherein the first frequency band and the second frequency band belong to different operating networks.
The network device according to any of claims 26-30, wherein if the first frequency band and the second frequency band belong to the same operating network, the communication unit is further configured to:

and transmitting a first downlink signal in one or more sub-bands of the downlink supplemental link, where the first downlink signal is a downlink signal for receiving an uplink signal transmitted by the terminal device in the first frequency band or the second frequency band.
The network device of any one of claims 23-25, wherein the uplink supplemental link comprises a frequency band, wherein the downlink supplemental link comprises a third frequency band and a fourth frequency band, and wherein the network device further comprises a processing unit configured to:

and scheduling channel resources of at least one sub-band of the third frequency band or the fourth frequency band by time division multiplexing and/or frequency division multiplexing, wherein the downlink signal is transmitted on the scheduled channel resources of the downlink supplemental link.
A network device, wherein a carrier of an unlicensed spectrum is configured with at least one bandwidth portion BWP, a BWP comprising at least one sub-band, and a bandwidth of a sub-band being an integer multiple of 20MHz or any value greater than 20MHz, the network device comprising:

a processing unit, configured to schedule channel resources of at least one sub-band of the unlicensed spectrum;

and the communication unit is used for sending the downlink signal to the terminal equipment on the scheduled channel resource.
The network device of claim 33, wherein a BWP comprises at least two sub-bands, and wherein the bandwidths of any two sub-bands are the same or the bandwidths of any two sub-bands are different.
A network device comprising a processor and a memory, the memory storing a computer program, the processor being configured to invoke and execute the computer program stored in the memory to perform the method of any one of claims 1 to 15.
A network device comprising a processor and a memory, the memory storing a computer program, the processor being configured to invoke and execute the computer program stored in the memory to perform the method of any one of claims 16 to 17.
A chip, characterized in that it comprises a processor for calling up and running a computer program from a memory, so that a device in which the chip is installed performs the method according to any one of claims 1 to 15.
A chip, characterized in that it comprises a processor for calling up and running a computer program from a memory, so that a device in which the chip is installed performs the method according to any one of claims 16 to 17.
A computer-readable storage medium for storing a computer program which causes a computer to perform the method of any one of claims 1 to 15.
A computer-readable storage medium for storing a computer program which causes a computer to perform the method of any one of claims 16 to 17.
A computer program product comprising computer program instructions to cause a computer to perform the method of any one of claims 1 to 15.
A computer program product comprising computer program instructions to cause a computer to perform the method of any of claims 16 to 17.
A computer program, characterized in that the computer program causes a computer to perform the method according to any of claims 1-15.
A computer program, characterized in that the computer program causes a computer to perform the method according to any of claims 16 to 17.