CN115883031A

CN115883031A - Frequency band determination method, device, equipment and readable storage medium

Info

Publication number: CN115883031A
Application number: CN202110948045.1A
Authority: CN
Inventors: 孙志雯; 夏亮; 王启星; 刘光毅
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Priority date: 2021-08-18
Filing date: 2021-08-18
Publication date: 2023-03-31

Abstract

The embodiment of the application provides a frequency band determination method, a device, equipment and a readable storage medium, wherein the method comprises the following steps: determining at least one frequency band, wherein each frequency band comprises at least one sub-band, the first information corresponding to the sub-band satisfies a first constraint condition, and each sub-band is configured with an MCS table; and indicating the at least one frequency band and the MCS table corresponding to each frequency band to a receiving end, so that resources in the frequency bands can be called by using the same scheduling information, and the resource utilization rate is improved.

Description

Frequency band determination method, device, equipment and readable storage medium

Technical Field

The embodiment of the application relates to the technical field of communication, in particular to a frequency band determining method, a frequency band determining device and a readable storage medium.

Background

For a large carrier bandwidth, the bandwidth required to be used by a terminal is often limited. If a terminal (e.g., user Equipment (UE)) is allowed to perform full-bandwidth detection and maintenance in real time, the energy consumption of the terminal will pose a great challenge. Then, the concept of Bandwidth part (BWP) is proposed to cope with the problem of Bandwidth demand difference. The BWP concept was introduced by partitioning a portion of the bandwidth to the UE for access and data transmission within the entire large carrier. The UE only needs to perform corresponding operations within the part of the bandwidth configured by the system. For example, when a UE with a bandwidth of 100M accesses a 200M cell, the base station may split a BWP of 100M from the entire 200M bandwidth for the UE.

Once the New Radio (NR) cell is successfully configured, after the UE accesses the network, the number of BWPs, the subcarrier spacing (subcarrier spacing), and the cyclic prefix (cyclic prefix) are fixed. In a plurality of BWPs determined by the base station, the UE can only activate one BWP at the same time, that is, the UE can only operate on one BWP at a time, and the bandwidth used by the UE cannot exceed the bandwidth range of the BWP, so the resource utilization rate is low.

Disclosure of Invention

Embodiments of the present application provide a method, an apparatus, a device, and a readable storage medium for determining a frequency band, so as to solve the problem of low resource utilization.

In a first aspect, a method for determining a frequency band is provided, and is applied to a transmitting end, and includes:

determining at least one frequency band, wherein each frequency band comprises at least one sub-frequency band, first information corresponding to the sub-frequency band meets a first constraint condition, and each sub-frequency band is configured with an MCS table;

and indicating the at least one frequency band and the MCS table corresponding to each frequency band to a receiving end.

Optionally, the method further comprises:

and performing MCS indication of the frequency band in the MCS table range corresponding to each frequency band in the at least one frequency band.

Optionally, the method further comprises:

determining at least one frequency band used by a receiving end, wherein the frequency band comprises at least one sub-frequency band, and first information corresponding to the sub-frequency band meets a first constraint condition; each frequency band is configured with a CQI table;

and indicating the at least one frequency band and a CQI table corresponding to each frequency band to the receiving end.

Optionally, the method further comprises:

and transmitting the same transmission block through the at least one frequency band and the MCS table corresponding to each frequency band.

Optionally, the step of determining at least one frequency band includes:

determining at least one frequency band according to a first constraint condition;

or,

receiving capability information from a receiving end;

determining the at least one frequency band according to the capability information and a first constraint condition;

or,

determining the at least one frequency band according to a first constraint condition and the frequency band determination granularity and/or the maximum frequency band bandwidth;

or,

receiving capability information from a receiving end;

and determining the granularity according to the capability information, the first constraint condition and the frequency band, and determining the at least one frequency band.

Optionally, the first constraint condition refers to a first information range determined by a first information first threshold and a first information second threshold;

alternatively, the first constraint condition refers to a first information fluctuation range.

Optionally, the subband refers to a frequency domain resource corresponding to the first information, where the frequency domain resource is at least one subband, a segment of frequency resource, at least one Resource Block (RB) resource, or another resource.

Optionally, the capability information includes: receiving bandwidth and/or a first capability, the first capability indicating the number of MCSs that the receiving end can decode within one transmission opportunity.

Optionally, the first information is directly obtained by the sending end, or is received by the sending end from the receiving end, or is obtained by the sending end according to a calibration module or sending device characteristics of the sending end.

Alternatively, the frequency band determination granularity is a minimum divisible unit when frequency bands are divided, and the frequency band width is an integral multiple of the frequency band determination granularity.

Optionally, the method further comprises: and indicating the frequency band resource for the receiving end.

Optionally, the step of indicating the frequency band resource for the receiving end includes:

sending frequency band determination indication information to the receiving end, wherein the frequency band determination indication information is used for determining a frequency band used by the receiving end;

or,

sending parameters required by frequency band determination to a receiving end, wherein the parameters are used for the receiving end to realize frequency band determination;

or,

and sending parameters required by frequency band determination to a receiving end, wherein the parameters are used for the receiving end to directly determine the used frequency band.

Optionally, the step of performing MCS indication of the frequency band within the MCS table corresponding to each frequency band in the at least one frequency band includes:

determining a new MCS table according to the MCS index range of each frequency band determined by the CQI on each frequency band, and sending the new MCS table to a receiving end; or,

and sending the maximum value and the minimum value in the value range of the MCS index to the receiving end, and obtaining a new MCS table by the receiving end according to the maximum value and the minimum value in the value range of the MCS index.

Optionally, the step of performing MCS indication on the frequency band within the MCS table corresponding to each frequency band in the at least one frequency band includes:

sending a first instruction to the receiving end, wherein the first instruction indicates the receiving end to report the value range of the MCS index;

receiving a new MCS table from the receiving end, wherein the new MCS table is determined by the receiving end according to the value range of the MCS index corresponding to the CQI;

or,

receiving the maximum value and the minimum value in the value range of the MCS index corresponding to the CQI from the receiving end;

and obtaining a new MCS table according to the maximum value and the minimum value in the value range of the MCS index.

Optionally, the method further comprises:

transmitting MCS indication information of the frequency band to the receiving end;

wherein the MCS instruction information of the frequency band is used for instructing MCS format, and the MCS format is instructed by the MCS instruction determined by the receiving end according to the frequency band used and the MCS table corresponding to the frequency band.

In a second aspect, a method for determining a frequency band is provided, and is applied to a receiving end, and includes:

the method comprises the steps of obtaining at least one frequency band indicated by a sending end and an MCS table corresponding to each frequency band, wherein each frequency band comprises at least one sub-frequency band, first information corresponding to the sub-frequency band meets a first constraint condition, and each sub-band is configured with the MCS table.

Optionally, the method further comprises:

and receiving the same transmission block through the at least one frequency band and the MCS table corresponding to each frequency band.

Optionally, the method further comprises:

sending capability information to a sending terminal, wherein the capability information comprises: receiving bandwidth and/or a first capability, where the first capability refers to the number of MCSs that the receiving end can decode in one transmission opportunity.

Optionally, the method further comprises:

receiving a parameter required for determining a frequency band from the transmitting end, and/or receiving frequency band determination indication information from the transmitting end, wherein the parameter is used for the receiving end to realize frequency band determination, and the frequency band determination indication information is used for determining a frequency band used by the receiving end.

In a third aspect, a frequency band determining apparatus is provided, and is applied to a transmitting end, and includes:

a first determining module, configured to determine at least one frequency band, where each frequency band includes at least one sub-band, first information corresponding to the sub-band satisfies a first constraint, and each sub-band is configured with an MCS table;

a first indicating module, configured to indicate the at least one frequency band and the MCS table corresponding to each frequency band to a receiving end.

In a fourth aspect, a frequency band determining apparatus is provided, which is applied to a receiving end, and includes:

an obtaining module, configured to obtain at least one frequency band indicated by a sending end and an MCS table corresponding to each frequency band, where each frequency band includes at least one sub-frequency band, first information corresponding to the sub-frequency band satisfies a first constraint condition, and each sub-band is configured with the MCS table.

In a fifth aspect, a terminal is provided, including: a processor, a memory and a program stored on the memory and executable on the processor, which program, when executed by the processor, carries out the steps of the method according to the first or second aspect.

In a sixth aspect, a network-side device is provided, which includes: a processor, a memory and a program stored on the memory and executable on the processor, which when executed by the processor, performs the steps of the method according to the first or second aspect.

In a seventh aspect, a readable storage medium is provided, on which a program is stored, which program, when executed by a processor, performs steps comprising the method of the first or second aspect.

In the embodiment of the application, the frequency band indicated to the receiving end by the sending end has a corresponding relation with the first information, so that resources in the frequency band can be called by using the same scheduling information, and the resource utilization rate is improved.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

FIG. 1 is a graph of received signal-to-noise ratio (SNR) as a function of OFDM subcarriers;

FIG. 2 is a schematic diagram of a communication system to which embodiments of the present application are applicable;

fig. 3 is a flowchart of a frequency band determination method provided in an embodiment of the present application;

fig. 4 is a second flowchart of a band determination method according to an embodiment of the present application;

fig. 5 is one of graphs showing variation of snr with carrier frequency band provided by the embodiment of the present application;

FIG. 6 is a second graph of the variation of SNR with carrier band according to the present embodiment;

fig. 7 is a schematic diagram of a receiving end a frequency band provided in the present application;

fig. 8 is a B-band diagram of a receiving end provided in the present application;

fig. 9 is a schematic diagram of a frequency band determining apparatus provided in an embodiment of the present application;

fig. 10 is a second schematic diagram of a band determination apparatus according to an embodiment of the present application;

fig. 11 is a schematic diagram of a terminal provided in an embodiment of the present application;

fig. 12 is a schematic diagram of a network device according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it should be understood that the described embodiments are some, but not all embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any inventive effort, shall fall within the scope of protection of the present application.

The terms "comprises," "comprising," or any other variation thereof, in the description and claims of this application, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. Furthermore, the use of "and/or" in the specification and claims means that at least one of the connected objects, such as a and/or B, means that three cases, a alone, B alone, and both a and B, exist.

In the embodiments of the present application, the words "exemplary" or "such as" are used herein to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

It is noted that the techniques described in the embodiments of the present application are not limited to Long Term Evolution (LTE)/LTE Evolution (LTE-Advanced) systems, but may also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), time Division Multiple Access (TDMA), frequency Division Multiple Access (FDMA), orthogonal Frequency Division Multiple Access (OFDMA), single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" are often used interchangeably in embodiments of the present application, and the described techniques may be used in both the above-mentioned systems and radio technologies, as well as in other systems and radio technologies. However, the following description describes a New Radio (NR) system for purposes of example, and NR terminology is used in much of the description below, although the techniques may also be applied to applications other than NR system applications, such as 6th generation (6 g) communication systems.

The current frequency band determination scheme can directly use the bandwidth as the frequency band determination method based on the premise that the channel losses experienced by different frequency band resources are basically the same. However, in actual communication, due to the frequency response characteristic of the transceiver device, response information of some communication systems is correlated with frequency variation. Since the response information of different frequencies is different, if the bandwidth continues to be determined according to the bandwidth, two BWPs of the same bandwidth may have different communication capabilities, which cannot be considered by the base station and the terminal in the prior art.

In addition, in the existing Scheme, when resources are called under a certain BWP, only one Modulation and Coding Scheme (MCS) and one Frequency Domain Resource Allocation (FDRA) can be configured. When the communication performance difference of different carriers in the same BWP is large, and the speed required by communication is large, if the frequency screening is prioritized, the number of carriers used for communication cannot meet the speed requirement; if the rate requirements of the communication are preferentially met, the transmitted information errors in some carriers are high. And only one BWP can be used at the same time, the use of such a bandwidth determination method cannot satisfy the requirement of the UE for large-capacity communication, and the resource utilization rate in the BWP is low.

For example, the received signal-to-noise ratio of an Orthogonal Frequency Division Multiplexing (OFDM) wireless optical communication system based on Light Emitting Diode (LED) varies linearly with the Frequency range, as shown in fig. 1. The signal-to-noise ratio of the receiver decreases with increasing subcarrier frequency and the correspondence varies substantially linearly. The frequency band resource can be determined according to the change of the signal-to-noise ratio, so that the signal-to-noise ratio in the same frequency band is consistent, when resource is called, one MCS is configured, and the UE can utilize all resources in the frequency band. And simultaneously, the UE is allowed to call two frequency band resources at the same time, so that the configuration flexibility is improved.

Referring to fig. 2, a block diagram of a wireless communication system to which embodiments of the present application are applicable is shown. The wireless communication system includes a terminal 21 and a network-side device 22. Wherein, the terminal 21 may also be called as a terminal Device or a User Equipment (UE), the terminal 21 may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer) or a notebook Computer, a Personal Digital Assistant (PDA), a palm Computer, a netbook, a super-Mobile Personal Computer (UMPC), a Mobile Internet Device (MID), a Wearable Device (Wearable Device) or a Vehicle-mounted Device (Vehicle User Equipment, VUE), a Pedestrian terminal (Pedestrian User Equipment, PUE), and other terminal side devices, the Wearable Device includes: bracelets, earphones, glasses and the like. It should be noted that the embodiment of the present application does not limit the specific type of the terminal 21.

The network-side device 22 may be a Base Station or a core network, wherein the Base Station may be referred to as a node B, an evolved node B, an access point, a Base Transceiver Station (BTS), a radio Base Station, a radio Transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a node B, an evolved node B (eNB), a home node B, a home evolved node B, a WLAN access point, a WiFi node, a TRP, or some other suitable terminology in the field, as long as the same technical effect is achieved, the Base Station is not limited to a specific technical vocabulary, and it should be noted that, in the embodiment of the present application, only the Base Station in the NR system is taken as an example, but the specific type of the Base Station is not limited.

Referring to fig. 3, an embodiment of the present application provides a method for determining a frequency band, where an execution main body of the method may be a sending end, and the method includes the specific steps of: step 301 and step 302.

Step 301: determining at least one frequency band, wherein each frequency band comprises at least one sub-band, the first information corresponding to the sub-band satisfies a first constraint condition, and each sub-band is configured with an MCS table;

the first information may be directly obtained at the transmitting end, or may be fed back to the transmitting end by the receiving end.

The first information may be a Signal-to-Noise Ratio (SNR), a Signal-to-Interference plus Noise Ratio (SINR), a Channel response, a Channel Quality Indicator (CQI), a Reference Signal Receiving Strength (RSRP), a Reference Signal Receiving Quality (RSRQ), a Received Signal Strength Indicator (RSSI), and the like, which are fed back to the transmitting end by the Receiving end;

or, the first information may also be obtained by the sending end according to the characteristics of the sending end calibration module or the sending device.

Step 302: and indicating the at least one frequency band and the MCS table corresponding to each frequency band to a receiving end.

In one embodiment of the present application, the method further comprises:

and performing MCS indication of each frequency band in the range of the MCS table corresponding to the frequency band.

In one embodiment of the present application, the method further comprises:

determining at least one frequency band used by a receiving end, wherein the frequency band comprises at least one sub-frequency band, and first information corresponding to the sub-frequency band meets a first constraint condition; each frequency band is configured with a reference signal Channel Quality Indication (CQI) table;

In one embodiment of the present application, the method further comprises:

In an embodiment of the present application, the step of determining at least one frequency band used by a receiving end includes:

determining at least one frequency band according to the first constraint condition;

or,

receiving capability information from a receiving end;

determining at least one frequency band according to the capability information and a first constraint condition;

or,

the maximum frequency band bandwidth refers to the maximum frequency band width allowed by a single frequency band, so that it can be prevented that the receiving end cannot receive normally due to the fact that the frequency band divided only according to the first constraint condition is too large.

Or,

receiving capability information from a receiving end;

and determining the at least one frequency band according to the capability information, the first constraint condition and the frequency band determination granularity.

Optionally, the first constraint condition refers to a first information range determined by the first information first threshold and the first information second threshold; alternatively, the first constraint condition refers to a fluctuation range of the first information.

Optionally, the sub-band refers to a frequency domain resource corresponding to one piece of the first information.

Optionally, the capability information includes: receiving a bandwidth and/or a first capability, wherein the first capability refers to the number of MCSs that the receiving end can decode in one transmission opportunity.

In the embodiment of the application, the frequency band determination considers the capability information of the receiving end, so that the configuration of the frequency band is more flexible.

Therefore, the frequency band is determined according to the corresponding relation between the threshold of the first information and the frequency band position, the whole frequency band can be scheduled by using the same scheduling information, the resource utilization rate is improved, a receiving end can access two frequency bands at the same time, and the frequency band is determined by considering the communication capacity report of the receiving end, so that the configuration is more flexible.

In one embodiment of the present application, the band determination granularity is a minimum partitionable unit in band division, and the frequency bandwidth is an integral multiple of the band determination granularity.

In one embodiment of the present application, the method further comprises:

and indicating the frequency band resource for the receiving end.

In an embodiment of the present application, the step of indicating the frequency band resource for the receiving end includes:

or,

In this way, the transmitting end can notify the receiving end of the band determination indication information (band number), or the receiving end can determine the band to be indicated to the receiving end according to the band determination parameter, so that the signaling overhead of the band determination indication information can be saved.

In an embodiment of the present application, the step of indicating the MCS of the frequency band within the MCS table corresponding to each frequency band of the at least one frequency band includes:

determining a new MCS table according to the MCS index range of each frequency band determined by the CQI on each frequency band, and sending the new MCS table to a receiving end; or sending the maximum value and the minimum value in the value range of the MCS index to the receiving end, and obtaining a new MCS table by the receiving end according to the maximum value and the minimum value in the value range of the MCS index.

In an embodiment of the present application, the step of performing MCS indication on the frequency band within an MCS table corresponding to each frequency band in the at least one frequency band includes:

or,

Thus, the scope of the MCS table can be reduced, and the MCS signaling overhead can be reduced.

In one embodiment of the present application, the method further comprises:

transmitting MCS indication information of a frequency band to the receiving end;

wherein the MCS instruction information of the frequency band is used for indicating an MCS format, and the MCS format is indicated by the MCS instruction determined by the receiving end according to the frequency band used and the MCS table corresponding to the frequency band.

Referring to fig. 4, an embodiment of the present application provides a frequency band determining method, where an execution subject of the method may be a receiving end, and the method includes the specific steps of: step 401.

Step 401: the method comprises the steps of obtaining at least one frequency band indicated by a sending end and an MCS table corresponding to each frequency band, wherein each frequency band comprises at least one sub-frequency band, first information corresponding to the sub-frequency band meets a first constraint condition, and each sub-band is configured with the MCS table.

In one embodiment of the present application, the method further comprises:

sending capability information to a sending end, wherein the capability information comprises: receiving bandwidth and/or a first capability, where the first capability refers to the number of MCSs that the receiving end can decode in one transmission opportunity.

In one embodiment of the present application, the method further comprises:

receiving a parameter required for determining a frequency band from a transmitting end, and/or receiving frequency band determination indication information from the transmitting end, wherein the parameter is used for the receiving end to realize frequency band determination, and the frequency band determination indication information is used for determining a frequency band used by the receiving end.

One embodiment of the present application will be described below with reference to steps 1 to 4.

Step 1: the sending end acquires a frequency band position (or a carrier frequency) and corresponding first information.

The first information may be directly obtained at the sending end, or may also be fed back to the sending end by the receiving end.

The first information may be feedback from the receiving end to the transmitting end, such as SNR, SINR, channel response, CQI, RSRP, RSRQ, RSSI, and the like;

Step 2: and the sending end determines the frequency band according to the threshold of the first information and the corresponding relation between the frequency band position and the first information.

Mode 1: the sending end directly determines the threshold of the first information according to an algorithm or self experience; after the threshold of the first information is determined, determining the frequency band according to the threshold of the first information; and the sending end appoints the frequency band used by the receiving end according to the acquired capability information reported by the receiving end.

Optionally, a frequency band determination granularity (minimum partitionable unit) may be determined, and the frequency band determination granularity and the threshold of the first information are determined by combining to ensure that the signaling overhead of the frequency band determination indication information is not too large;

optionally, a maximum bandwidth of the frequency band may be determined, so as to avoid that the frequency band interval determined by using the threshold of the first information alone is too large, so that the receiving end cannot use the frequency band.

Mode 2: the transmitting end determines the fluctuation range of the first information in the single frequency band according to an algorithm or self experience; a sending end acquires the capability information of a receiving end; the sending end determines a frequency band for the receiving end according to the fluctuation range of the first information and the capability information of the receiving end;

in this step, the band determination rule may require the continuity of the frequency bands, that is, one frequency band may be a set of frequency resources that are continuous and the first information is in the same interval range, or may be a set of frequency resources that are discontinuous and the first information is in the same interval range.

Optionally, the receiving end capability information includes: the maximum receiving bandwidth and/or the first capability of the receiving end, the first capability may be the number of MCSs that the receiving end can decode within one transmission opportunity.

And step 3: and the transmitting end distributes frequency band resources for the receiving end.

Mode 1: the sending end may notify the receiving end of the determined frequency band determination indication information (including, for example, the number of frequency bands and the position of the frequency band);

mode 2: the sending end may send parameters (including a threshold range of the first information, a band determination granularity, a maximum band bandwidth, and the like) required for band determination to the receiving end. The receiving end uses the band determination parameter to perform band determination (see the example in the embodiment). The transmitting end transmits the frequency band indication information (such as frequency band number) to the receiving end;

mode 3: the sending end sends the frequency band determining parameters (including the threshold range of the first information, the frequency band determining particle size, the maximum frequency band bandwidth and the like) to the receiving end. The receiving end uses the frequency band determination parameter to determine the frequency band (see the example in the embodiment specifically), and the determined frequency band is unique and does not need to indicate the frequency band.

And 4, step 4: the transmitting end or the receiving end confirms a corresponding MCS Table (Table) of the used frequency band.

1) The sending end sends a CQI measurement instruction, and the receiving end carries out CQI measurement when receiving the measurement instruction and reports the CQI after a certain time (such as 3 ms). The sending end can determine the value range of the MCS index corresponding to the Reference CQI index from the MCS Table (as shown in Table 1, the sending end can correspond to different MCS index ranges for CQI according to the experience of the sending end), and the sending end can reform the value range of the MCS index corresponding to the Reference CQI index into one MCS Table and send the MCS Table to the receiving end; or, the transmitting end sends the maximum value of the MCS index and the minimum value of the MCS index to the receiving end, and the receiving end obtains a new MCS Table according to the maximum value of the MCS index and the minimum value of the MCS index.

2) The sending end sends an MCS value range reporting instruction, the receiving end carries out CQI measurement after receiving the instruction, determines the maximum value and the minimum value of the MCS index in the MCS Table according to the Reference CQI index obtained by measurement, and reports the maximum value and the minimum value of the MCS index after a certain time (such as 3 ms) after receiving the instruction.

a) The transmitting end directly determines the MCS table range according to the maximum value and the minimum value of the MCS index reported by the receiving end, and carries out MCS index indication according to the MCS index range.

b) The transmitting end determines a value range of the MCS Table by taking the maximum value and the minimum value of the MCS Index reported by the receiving end as references, and sends the maximum value and the minimum value of the MCS Index to the receiving end, and the receiving end obtains a new MCS Table according to the value.

Table 1: MCS index table (MCS index table)

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A sending end sends frequency band resource indication information to indicate MCS instructions corresponding to each frequency band;

and when the receiving end receives the frequency band resource indication information, determining the MCS format indicated by the MCS instruction according to the used frequency band and the MCS table corresponding to the frequency band.

The application provides a new frequency band determining mode, which determines a frequency band according to first information, allows a receiving end to receive a plurality of frequency bands at the same time and improves the resource utilization rate. And according to the corresponding relation between the frequency band and the first information, the transmitting end and the receiving end can determine the frequency band, the MCS configuration information and the like through the same algorithm rule, and the signaling overhead is reduced.

The BWP directly determines the frequency band according to the bandwidth required by the receiving end, and for different subcarrier communication capabilities under the same BWP, the available resource bandwidth is limited under the single configuration information, and this determination method causes resource waste. In order to improve the resource utilization rate and more flexibly configure resources for the terminal, the application further provides a method for determining the frequency band according to the capability information of the receiving end and allowing the receiving end to access a plurality of frequency band resources at the same time.

Since in some communication systems the first information corresponds to a frequency band, this characteristic can be used for band determination. A threshold of the first information is set first, and the frequency band resource block is determined according to the threshold. The determined communication capability difference between different subcarriers can be considered to be negligible (without affecting communication accuracy) for each frequency band, so that resources in the frequency band can all be called by using the same scheduling information.

The following description of the specific embodiment is made by taking the first information as the snr of the receiving end as an example.

Example 1: the sending end obtains the signal-to-noise ratio of each carrier wave in the bandwidth. The sending end directly determines the threshold of the signal-to-noise ratio and determines the frequency band according to the threshold of the signal-to-noise ratio. The receiving end reports the communication capacity, and the sending end carries out bandwidth allocation according to the information reported by the receiving end.

Step 1: the sending end obtains the corresponding relation between the receiving signal-to-noise ratio and the frequency band position (or the carrier frequency):

1) A sending end sends a reference signal, and a receiving end obtains a signal-to-noise ratio corresponding to a frequency band position by using channel estimation and feeds the signal-to-noise ratio back to the sending end; or, the sending end directly obtains the corresponding relation between the signal-to-noise ratio and the frequency band position, and the sending end can send the corresponding relation between the signal-to-noise ratio and the frequency band position to the receiving end according to the requirement;

and 2, step: the sending end determines the threshold of the signal-to-noise ratio, and determines the frequency band according to the threshold of the signal-to-noise ratio:

1) The sending end directly determines the threshold of the signal-to-noise ratio according to an algorithm or self experience;

2) And after the threshold of the signal-to-noise ratio is determined, the transmitting end determines the frequency band according to the threshold of the signal-to-noise ratio.

Optionally, a frequency band determination granularity may be determined, and the frequency band determination granularity and the threshold determination of the signal-to-noise ratio are synthesized to ensure that the signaling overhead of the frequency band determination indication information is not too large;

optionally, a maximum bandwidth of the frequency band may be determined, so as to avoid that the receiving end cannot use the frequency band due to an excessively large frequency band interval obtained by simply using a threshold of the signal-to-noise ratio.

In this step, the band determination rule may require the continuity of the frequency bands, and a frequency band may be a set of frequency resources that are continuous and have a snr in the same interval range, or a set of frequency resources that are discontinuous and have a snr in the same interval range.

And 3, step 3: the transmitting end transmits related information indicating frequency bands to the receiving end:

1) A sending end acquires the capability information of a receiving end;

2) And the sending end appoints the frequency band used by the receiving end according to the acquired capability information reported by the receiving end. The transmitting end may inform the receiving end of the determined band determination indication information (e.g., including one or more of the number of bands, the location of the bands), or,

and the sending end sends parameters (such as one or more of the following items: threshold range of signal-to-noise ratio, band determination granularity, maximum band bandwidth and the like) required by band determination to the receiving end. The receiving end determines the frequency band using the frequency band determination parameter (see the following examples in embodiments), and then the transmitting end transmits the determined frequency band determination indication information (such as the frequency band number) to the receiving end, or,

the sending end sends the frequency band determination parameters (such as one or more of the following items: threshold range of signal to noise ratio, frequency band determination granularity, maximum frequency band bandwidth, etc.) to the receiving end. The receiving end uses the band determination parameter to perform band determination (see the following examples in the embodiments).

And 4, step 4: the receiving end and the transmitting end confirm the corresponding MCS Table of the used frequency band and carry out MCS index indication:

the specific band determination rule is as follows:

firstly, frequency bands are determined according to thresholds of signal-to-noise ratios which are understood by a sending end and a receiving end to be consistent, after N sub-frequency bands are obtained, the frequency bands are numbered, and the numbering rule can be that the frequency bands are numbered according to a frequency ascending order. When the receiving end accesses the sending end, the bandwidth reported by the receiving end is bandwidth A, and the maximum bandwidth number which can be accessed simultaneously is B. After acquiring the bandwidth a and the bandwidth number B, the transmitting end traverses the frequency band from i = 1.

The sum of the total bandwidths of i (i is taken from 1) subbands is found by the receiving end, and the sum ranges from [ xA, A ] (wherein x is taken from 0 to 1, and the specific value is determined by the base station) and is closest to the bandwidth of the receiving end.

If at least one frequency band or combination of frequency bands is found that meets the condition or i = B:

if i =1, selecting a frequency band by means of random numbers;

otherwise, selecting the frequency band combination with the minimum variation of the signal-to-noise ratio range of the sub-frequency bands; if at least one frequency band combination still meets the condition, selecting one frequency band combination in a random number mode;

otherwise, when there is no band satisfying the condition after traversal:

i = i +1; and re-traversing until a qualified frequency band combination is found, or i = B, determining the selected frequency band.

The following examples are given. It is assumed that fig. 5 is a graph of the variation of the snr with the carrier frequency obtained by channel estimation. It can be seen that the signal-to-noise ratio varies in the range of 20dB to 5dB. It is known that the snr is divided into three intervals (5, 10), (10, 15), (15, 20) for every 5dB change as a band interval, the band is determined to require continuity, and finally the band is divided into 5 sub-bands.

When the receiving end A accesses the sending end, the receiving end reports the capability information, and the maximum receiving bandwidth of the receiving end is M _A (assuming that this bandwidth contains 5 subcarriers in fig. 5), the maximum number of simultaneously receivable frequency bands is 1. The sending end reports according to the communication capacity and indicates a frequency band for the receiving end A. Traversing the frequency band by the sending end, and searching a bandwidth of 0.8M for the receiving end _A ,M _A ]And when at least one frequency band meeting the condition is found, selecting one frequency band to indicate to the receiving end A by using a random number mode, wherein the frequency band 2 and the frequency band 5 meet the condition at the same time, calculating the used frequency band by using the random number, and indicating the frequency band 2 to the receiving end A for communication by assuming that the selected frequency band is the frequency band 2.

The transmitting end informs the receiving end of the frequency band determination indication information (including the frequency band number and the frequency band position) sent to the receiving end, or informs the receiving end of a rule that the transmitting end determines a frequency band every 5dB change of the signal-to-noise ratio from the lowest subcarrier number. The receiving end determines the frequency band according to the rule. After the frequency bands are determined by the receiving end and the transmitting end, the frequency bands are numbered in sequence according to the ascending order of the frequency, and the transmitting end informs the receiving end of the number of the allocated bandwidth. Finally, the receiving end determines the frequency band used to be frequency band 2 according to the rule.

When the receiving end B accesses the transmitting end, the receiving end reports the capability information, and the maximum receiving bandwidth MB (assuming that the bandwidth contains 9 subcarriers in the figure) of the receiving end is 2, the maximum number of simultaneously receivable frequency bands. The sending end firstly searches a bandwidth of 0.8M for the receiving end according to the capability information _B ,M _B ]And closest to the receiving end bandwidth. There are no frequency bands that satisfy the condition after traversal. Finding the frequency band with the sum of the two frequency band bandwidths satisfying the condition, wherein the total bandwidth is M _B Can be a combination of any of the

frequency bands

1,3,5 and any of the

frequency bands

2,4. Under the condition, two frequency bands with consistent signal-to-noise ratio ranges, namely the frequency band 2 and the frequency band 5, are preferably selected, so that the two frequency bands can use consistent modulation and coding format configuration information, and signaling overhead is saved.

Example 2: the signal-to-noise ratio of each carrier within the bandwidth is obtained. The sending end determines the signal-to-noise ratio fluctuation range in a single frequency band, the receiving end reports the communication capacity, and the sending end determines the bandwidth according to the communication capacity reported by the receiving end and the signal-to-noise ratio fluctuation range in the single frequency band.

1) Sending a first reference signal, obtaining a signal-to-noise ratio corresponding to a frequency band position by using channel estimation at a receiving end and feeding back the signal-to-noise ratio to a sending end; or, the sending end directly obtains the corresponding relation of the signal-to-noise ratio, and the sending end can send the information to the receiving end according to the requirement;

step 2: the sending end determines the fluctuation range of the signal-to-noise ratio and the capability information of the receiving end:

1) The sending end determines the signal-to-noise ratio fluctuation range in a single frequency band according to an algorithm or self experience;

2) The sending end obtains the capability information of the receiving end.

And 3, step 3: the sending end determines and indicates the frequency band according to the fluctuation range of the signal-to-noise ratio and the capability information of the receiving end:

1) The sending end determines a frequency band for the receiving end according to the noise ratio fluctuation range and the receiving end capability information;

optionally, a band determination granularity may be determined, and the band determination granularity is integrated with the band determination granularity to ensure that the signaling overhead of the band determination indication information is not too large.

2) The transmitting end may determine the determined frequency band determination indication information (e.g., including one or more of the following: the number of bands, the location of the bands) to the receiving end, or,

the specific band determination rule is as follows: the maximum fluctuation range of the signal-to-noise ratio in the allowable frequency band is known as Y. When the receiving end is accessed to the sending end, the bandwidth reported by the receiving end is A, and the maximum number of bandwidths capable of being accessed simultaneously is B. After the sender acquires a and B, the traversal starts from i = 1.

And searching a carrier set which has the bandwidth of which the maximum difference value (the difference between the maximum value and the minimum value in the set) of the signal-to-noise ratio is less than or equal to Y and is between [ xA and A ] (wherein the value range of x is between 0 and 1, and the specific value is determined by a base station) and is closest to the bandwidth of the receiving end as a frequency band for the receiving end.

After traversing, if at least one frequency band meeting the condition is found, the continuous frequency band is preferentially selected, and if at least one frequency band meeting the condition is found, the frequency band is selected by adopting a random number.

If there is no frequency band satisfying the condition after traversal:

and determining a carrier set with the maximum bandwidth and the maximum signal-to-noise ratio difference value less than or equal to Y as a frequency band and indicating the frequency band to a receiving end, preferentially selecting continuous frequency bands for at least one frequency band meeting the conditions, and if at least one frequency band still meeting the conditions exists, selecting the frequency band by adopting a random number, wherein the finally selected frequency band bandwidth is C.

If i = B, the band is determined to be complete.

If i < B, i = i +1, and then searching a sub-band with the bandwidth of A = A-C for the receiving end on the basis of the frequency band. And repeating the traversing step until the frequency band combination meeting the condition is found or i = B is found, and finishing the frequency band determination.

The following examples are given. Suppose that fig. 6 is a graph of the variation of the snr with the carrier frequency obtained by channel estimation. It can be seen from the figure that the signal-to-noise ratio varies in the range of 20dB to 5dB. The maximum allowable fluctuation range of the signal-to-noise ratio in the frequency band is known to be 5dB. This band does not require continuity.

When the receiving end A accesses the sending end, the receiving end reports the capability information, and the maximum receiving bandwidth M of the receiving end _A (assuming this bandwidth contains 6 subcarriers in the figure), the maximum number of simultaneously receivable frequency bands is 1. The sending end reports according to the communication capacity, determines a frequency band for the receiving end A and indicates the frequency band. The transmitting end starts to traverse from the frequency with a certain specified number, and searches for the total bandwidth M with the maximum difference (the difference between the maximum value and the minimum value in the set) of the signal-to-noise ratio less than or equal to 5dB for the receiving end _A Is allocated to the receiving end a. Assuming that the transmitting end starts to traverse from the left side of the entire bandwidth, the frequency band finally allocated to the receiving end a is a frequency band 1, as shown in fig. 7.

The sending end informs the receiving end by sending frequency band determination indication information (such as one or more items including frequency band quantity and frequency band position) to the receiving end; or, the transmitting end sends the information that the maximum fluctuation range of the allowed signal-to-noise ratio in the frequency band is 5dB to the receiving end. The receiving end selects the accessed frequency band according to the same method (see the above contents) as the transmitting end.

When the receiving end B accesses the sending end, the receiving end reports the capability information, and the maximum receiving bandwidth of the receiving end is M _B (assuming that this bandwidth contains 10 subcarriers in the figure), the maximum is the same asThe number of received bands is 2. According to the capability information, the sending end firstly searches a bandwidth of 0.8M for the receiving end _B ,M _B ]And closest to the receiving end bandwidth. And after traversing, finding at least one frequency band meeting the condition, preferentially selecting a frequency band with continuous frequency bands, and if at least one frequency band meeting the condition exists, selecting the frequency band by adopting a random number. Therefore, the frequency band determined by the transmitting end for the receiving end B is the frequency band 2, as shown in fig. 8.

The sending end sends the frequency band determination indication information (such as one or more of the following items: frequency band number and frequency band position) to the receiving end to inform the receiving end; or, the transmitting end sends the information that the maximum fluctuation range of the allowed signal-to-noise ratio in the frequency band is 5dB to the receiving end. The receiving end selects the accessed frequency band according to the same method (see the above contents) as the transmitting end.

Referring to fig. 9, an embodiment of the present application provides a frequency band determining apparatus, which is applied to a transmitting end, where the apparatus 900 includes:

a first determining module 901, configured to determine that at least one frequency band includes at least one sub-band, where first information corresponding to the sub-band satisfies a first constraint condition, and each sub-band is configured with an MCS table;

a first indicating module 902, configured to indicate the at least one frequency band and the MCS table corresponding to each frequency band to the receiving end.

In one embodiment of the present application, the apparatus further comprises:

and the second indicating module is used for indicating the MCS of the frequency band within the MCS table corresponding to each frequency band in the at least one frequency band.

In an embodiment of the present application, the first determining module 901 is further configured to: determining at least one frequency band used by a receiving end, wherein the frequency band comprises at least one sub-frequency band, and first information corresponding to the sub-frequency band meets a first constraint condition; each frequency band is configured with a reference signal Channel Quality Indication (CQI) table;

the first indicating module 902 is further configured to: and indicating the at least one frequency band and a CQI table corresponding to each frequency band to the receiving end.

In one embodiment of the present application, the apparatus further comprises:

and a transmission module, configured to transmit the same transport block through the at least one frequency band and the MCS table corresponding to each frequency band.

In an embodiment of the present application, the first determining module 901 is further configured to:

or,

receiving capability information from a receiving end;

determining at least one frequency band according to the capability information and the first constraint condition;

or,

receiving capability information from a receiving end;

In one embodiment of the present application, the first constraint refers to a first information range determined by a first threshold of the first information and a second threshold of the first information; alternatively, the first constraint condition refers to one of the first information fluctuation ranges.

In an embodiment of the present application, the sub-band refers to a frequency domain resource corresponding to one piece of the first information.

In one embodiment of the present application, the apparatus further comprises:

and the indicating module is used for indicating the frequency band resource for the receiving end.

In one embodiment of the present application, the indication module is further configured to:

or,

In one embodiment of the present application, the second indicating module is further configured to:

In one embodiment of the present application, the second indicating module is further configured to: sending a first instruction to the receiving end, wherein the first instruction indicates the receiving end to report the value range of the MCS index;

or,

In one embodiment of the present application, the apparatus further comprises:

a first sending module, configured to send MCS indication information of a frequency band to the receiving end;

The device provided by the embodiment of the application can realize each process realized by the method embodiment shown in fig. 3, and achieve the same technical effect, and for avoiding repetition, the details are not repeated here.

Referring to fig. 10, in an embodiment of the present application, a band determining apparatus is provided, which is applied to a receiving end, and the apparatus 1000 includes:

an obtaining module 1001, configured to obtain at least one frequency band indicated by a sending end and an MCS table corresponding to each frequency band, where each frequency band includes at least one sub-frequency band, first information corresponding to the sub-frequency band satisfies a first constraint condition, and each sub-frequency band is configured with the MCS table.

In one embodiment of the present application, the apparatus further comprises:

a first receiving module, configured to receive the same transport block through the at least one frequency band and an MCS table corresponding to each frequency band.

In one embodiment of the present application, the apparatus further comprises:

a first sending module, configured to send capability information to a sending end, where the capability information includes: receiving a bandwidth and/or a first capability, where the first capability refers to a number of MCSs that the receiving end can decode within one transmission opportunity.

In one embodiment of the present application, the apparatus further comprises:

a second receiving module, configured to receive a parameter required for determining a frequency band from a sending end, and/or receive frequency band determination indication information from the sending end, where the parameter is used by the receiving end to implement frequency band determination, and the frequency band determination indication information is used by the receiving end to determine a frequency band used by the receiving end.

The device provided by the embodiment of the application can realize each process realized by the method embodiment shown in fig. 4, and achieve the same technical effect, and for avoiding repetition, the details are not repeated here.

Fig. 11 is a schematic hardware structure diagram of a terminal for implementing an embodiment of the present application, where the terminal 1100 includes, but is not limited to: a radio frequency unit 1101, a network module 1102, an audio output unit 1103, an input unit 1104, a sensor 1105, a display unit 1106, a user input unit 1107, an interface unit 1108, a memory 1109, a processor 1110, and the like.

Those skilled in the art will appreciate that terminal 1100 can also include a power supply (e.g., a battery) for powering the various components, which can be logically coupled to processor 1110 via a power management system to facilitate managing charging, discharging, and power consumption via the power management system. The terminal structure shown in fig. 11 does not constitute a limitation of the terminal, and the terminal may include more or less components than those shown, or combine some components, or arrange different components, and thus will not be described again.

It should be understood that in the embodiment of the present application, the input Unit 1104 may include a Graphics Processing Unit (GPU) 11041 and a microphone 11042, and the Graphics processor 11041 processes image data of still pictures or video obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The display unit 1106 may include a display panel 11061, and the display panel 11061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 1107 includes a touch panel 11071 and other input devices 11072. A touch panel 11071, also called a touch screen. The touch panel 11071 may include two portions of a touch detection device and a touch controller. Other input devices 11072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.

In this embodiment of the application, the radio frequency unit 1101 receives downlink data from a network side device and then processes the downlink data to the processor 1110; in addition, the uplink data is sent to the network side equipment. In general, radio frequency unit 1101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

The memory 1109 may be used for storing software programs or instructions as well as various data. The memory 1109 may mainly include a storage program or instruction area and a storage data area, wherein the storage program or instruction area may store an operating system, an application program or instruction (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. In addition, the Memory 1109 may include a high-speed random access Memory and may also include a nonvolatile Memory, which may be a Read-Only Memory (ROM), a Programmable Read-Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), or a flash Memory. Such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.

Processor 1110 may include one or more processing units; optionally, the processor 1110 may integrate an application processor that mainly handles operating systems, user interfaces, and application programs or instructions, etc., and a modem processor that mainly handles wireless communications, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into processor 1110.

The terminal provided in the embodiment of the present application can implement each process implemented by the method embodiment shown in fig. 3 or fig. 4, and achieve the same technical effect, and is not described here again to avoid repetition.

Referring to fig. 12, fig. 12 is a structural diagram of a network side device applied in the embodiment of the present invention, and as shown in fig. 12, the network side device 1200 includes: a processor 1201, a transceiver 1202, a memory 1203, and a bus interface, wherein:

in an embodiment of the present invention, the network-side device 1200 further includes: a program stored on the memory 1203 and executable on the processor 1201, which when executed by the processor 1201, performs the steps of the embodiments shown in fig. 3 or fig. 4.

In fig. 12, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by the processor 1201, and various circuits, represented by the memory 1203, linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1202 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium.

The processor 1201 is responsible for managing a bus architecture and general processing, and the memory 1203 may store data used by the processor 1201 in performing operations.

The network side device provided in the embodiment of the present application can implement each process implemented by the method embodiment shown in fig. 3 or fig. 4, and achieve the same technical effect, and is not described here again to avoid repetition.

An embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the method embodiment shown in fig. 3 or fig. 4, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.

Wherein, the processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and the like.

The steps of a method or algorithm described in connection with the disclosure herein may be embodied in hardware or may be embodied in software instructions executed by a processor. The software instructions may consist of a corresponding software module, which may be stored in RAM, flash memory, ROM, EPROM, EEPROM, registers, hard disk, a removable hard disk, a compact disk, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an ASIC. In addition, the ASIC may be carried in a core network interface device. Of course, the processor and the storage medium may reside as discrete components in a core network interface device.

Those skilled in the art will recognize that, in one or more of the examples described above, the functions described herein may be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.

The above-mentioned embodiments, objects, technical solutions and advantages of the present application are further described in detail, it should be understood that the above-mentioned embodiments are only examples of the present application, and are not intended to limit the scope of the present application, and any modifications, equivalent substitutions, improvements and the like made on the basis of the technical solutions of the present application should be included in the scope of the present application.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, embodiments of the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, magnetic disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

Embodiments of the present application are described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various changes and modifications may be made in the embodiments of the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the embodiments of the present application fall within the scope of the claims of this application and their equivalents, then this application is intended to cover such modifications and variations.

Claims

1. A method for determining a frequency band is applied to a transmitting end, and is characterized by comprising the following steps:

determining at least one frequency band, wherein each frequency band comprises at least one sub-frequency band, first information corresponding to the sub-frequency band meets a first constraint condition, and each sub-frequency band is configured with a Modulation and Coding Strategy (MCS) table;

2. The method of claim 1, further comprising:

3. The method of claim 1, further comprising:

4. The method of claim 1, further comprising:

5. The method of claim 1, wherein the step of determining at least one frequency band comprises:

or,

receiving capability information from a receiving end;

or,

receiving capability information from a receiving end;

6. The method according to claim 1,3 or 5, wherein the first constraint condition refers to a range of the first information determined by the first information first threshold and the first information second threshold;

alternatively, the first constraint condition refers to a fluctuation range of the first information.

7. The method of claim 1 or 3, wherein the sub-band refers to a frequency domain resource corresponding to the first information.

8. The method of claim 5, wherein the capability information comprises: receiving bandwidth and/or a first capability, where the first capability refers to the number of MCSs that the receiving end can decode in one transmission opportunity.

9. The method according to claim 1,3,5, 6 or 7, wherein the first information is directly obtained by the sender, or is received by the sender from the receiver, or is obtained by the sender according to a calibration module or a sending device characteristic of the sender.

10. The method of claim 5,

the band determination granularity is a minimum divisible unit in band division, and the band width is an integral multiple of the band determination granularity.

11. The method of claim 1, further comprising:

and indicating the frequency band resource for the receiving end.

12. The method of claim 11, wherein the step of indicating the band resource for the receiving end comprises:

or,

13. The method of claim 2, wherein the step of indicating the MCS for each of the at least one frequency band in the MCS table corresponding to the frequency band comprises:

14. The method of claim 2, wherein the step of indicating the MCS for the band in the MCS table corresponding to each band in the at least one band comprises:

or,

15. The method of claim 1, further comprising:

16. A method for determining a frequency band is applied to a receiving end, and is characterized by comprising the following steps:

the method comprises the steps of obtaining at least one frequency band indicated by a sending end and an MCS table corresponding to each frequency band, wherein each frequency band comprises at least one sub-frequency band, first information corresponding to the sub-frequency band meets a first constraint condition, and each sub-frequency band is configured with the MCS table.

17. The method of claim 16, further comprising:

18. The method of claim 17, further comprising:

19. The method of claim 17, further comprising:

receiving a parameter required for determining a frequency band from the transmitting end, and/or receiving frequency band determination indication information from the transmitting end, wherein the parameter is used for the receiving end to realize frequency band determination, and the frequency band determination indication information is used for the receiving end to determine a used frequency band.

20. A frequency band determining apparatus applied to a transmitting end, comprising:

21. A frequency band determining apparatus applied to a receiving end, comprising:

22. A terminal, comprising: a processor, a memory and a program stored on the memory and executable on the processor, which when executed by the processor implements the steps of the method according to any one of claims 1 to 19.

23. A network-side device, comprising: a processor, a memory and a program stored on the memory and executable on the processor, the program, when executed by the processor, implementing the steps of the method according to any one of claims 1 to 19.

24. A readable storage medium, characterized in that it has stored thereon a program which, when being executed by a processor, carries out steps comprising the method according to any one of claims 1 to 19.