CN107483156B

CN107483156B - Resource allocation method, device and system

Info

Publication number: CN107483156B
Application number: CN201710728879.5A
Authority: CN
Inventors: 周明宇; 王宏超
Original assignee: Beijing Bai Caibang Technology Co ltd
Current assignee: Baicells Technologies Co Ltd
Priority date: 2017-08-23
Filing date: 2017-08-23
Publication date: 2020-09-18
Anticipated expiration: 2037-08-23
Also published as: CN107483156A

Abstract

The embodiment of the invention provides a resource allocation method, a device and a system. On one hand, in the embodiment of the invention, a network side determines at least one MCS corresponding to a bandwidth resource according to the bandwidth resource allocated to user equipment and the channel quality of the bandwidth resource; sending a resource allocation result to the user equipment, wherein the resource allocation result comprises bandwidth resources allocated to the user equipment and at least one MCS; the user equipment further processes the specified data by using at least one MCS contained in the resource allocation result, and maps the processed specified data to the bandwidth resource contained in the resource allocation result to complete the sending of the uplink data; and the network side processes the received uplink data according to the bandwidth resources occupied by the transmitted uplink data and the corresponding MCS to obtain the specified data. The technical scheme provided by the embodiment of the invention is used for improving the utilization rate of bandwidth resources, reducing the error rate of data transmission and avoiding data demodulation failure to a certain extent.

Description

Resource allocation method, device and system

[ technical field ] A method for producing a semiconductor device

The present invention relates to the field of wireless communication technologies, and in particular, to a method, an apparatus, and a system for resource allocation.

[ background of the invention ]

In a Long Term Evolution (LTE) system, uplink resource allocation is limited by Single-carrier Frequency-Division Multiple Access (SC-FDMA) characteristics, the uplink resource allocation must be continuous and the number of physical resource blocks must meet the 2,3,5 rules, the Modulation and Coding Scheme (MCS) of the continuous resource blocks is determined by the average channel quality or equivalent channel quality on allocated bandwidth resources, and the MCS within one resource allocation is unique.

With the continuous development of communication technology, the use of higher frequency spectrum and the pursuit of higher rate by users, the bandwidth resources that can be used by a single user equipment become larger, the maximum bandwidth of a single cell in the existing LTE network is 20M, the maximum bandwidth that can be allocated by a corresponding single user equipment is also 20M, and the bandwidth of a single cell in the future may be 100M, 500M or even larger. Along with the fact that the bandwidth resources which can be used by the user equipment are larger and larger, the interference level difference on the whole bandwidth resources is also larger, if the average channel quality or the equivalent channel quality on the bandwidth resources is still used to determine the MCS of the whole resource, the resource waste is caused, and the demodulation error probability is increased.

Referring to fig. 1, which is a diagram illustrating uplink resource allocation and modulation and coding scheme in the prior art, as shown in fig. 1, for an uplink resource allocated to a ue, interference in the uplink resource is different, interference on some uplink resources is lower, channel quality is better, interference on some uplink resources is higher, and channel quality is worse, a conventional method is to calculate average channel quality or equivalent channel quality of the uplink resource, and then determine MCS of the uplink resource according to the average channel quality or equivalent channel quality, and MCS of the uplink resource within one resource allocation is unique.

In the existing LTE system, the MCS of the uplink resource allocated by the ue is unique, but because the interference levels received by the bandwidth resource allocated by the ue are different, the order of the MCS used by some resource blocks on the bandwidth resource allocated by the ue is lower, which results in that the bandwidth resource cannot be fully utilized, and if the order of the MCS used is higher, a higher error rate and a demodulation failure occur.

[ summary of the invention ]

In view of this, embodiments of the present invention provide a resource allocation method, apparatus, and system, so as to improve the utilization rate of bandwidth resources, reduce the error rate of data transmission, and avoid data demodulation failure to a certain extent.

In one aspect, an embodiment of the present invention provides a resource allocation method, which is applied to a system including a network side and a user equipment; the method comprises the following steps:

the network side determines at least one Modulation and Coding Scheme (MCS) corresponding to the bandwidth resource according to the bandwidth resource allocated to the user equipment and the channel quality of the bandwidth resource;

the network side sends a resource allocation result to the user equipment, wherein the resource allocation result comprises bandwidth resources allocated to the user equipment and the at least one MCS;

the user equipment processes the specified data by using at least one MCS contained in the resource allocation result, and maps the processed specified data to the bandwidth resource contained in the resource allocation result to finish the sending of the uplink data;

and the network side processes the received uplink data according to the bandwidth resources occupied by the uplink data transmission and the corresponding MCS to obtain the specified data.

The aspect and any possible implementation manner described above further provide an implementation manner, where the determining, by the network side, at least one modulation and coding scheme MCS corresponding to a bandwidth resource according to the bandwidth resource allocated to the user equipment and a channel quality of the bandwidth resource, includes:

the network side determines at least one resource block set according to the bandwidth resources allocated to the user equipment, wherein each resource block set comprises one resource block or a plurality of continuous resource blocks in the bandwidth resources;

and the network side determines the MCS corresponding to each resource block set according to the channel quality corresponding to each resource block set to obtain the at least one MCS.

As to the above-mentioned aspect and any possible implementation manner, further providing an implementation manner, before the determining, by the network side, the MCS corresponding to each resource block set according to the channel quality corresponding to the resource block set, the method further includes: the network side acquires the channel quality corresponding to each resource block set;

the network side determines the MCS corresponding to each resource block set according to the channel quality corresponding to each resource block set, and the method comprises the following steps: and the network side acquires the MCS corresponding to each resource block set according to the corresponding relation between the channel quality and the MCS.

The above aspect and any possible implementation further provide an implementation in which the channel quality is represented by a channel quality indicator, CQI, order;

correspondingly, the higher the CQI order used to indicate the channel quality, the higher the order of the MCS corresponding to the channel quality.

The foregoing aspect and any possible implementation manner further provide an implementation manner, where the sending, by the network side, a resource allocation result to the user equipment includes: and the network side sends the resource allocation result to the user equipment through a Physical Downlink Control Channel (PDCCH).

The aspect and any possible implementation manner as described above further provide an implementation manner, where the sending, by the network side, the resource allocation result to the user equipment through the PDCCH includes:

and the network side utilizes downlink control information DCI0 to carry the resource allocation result, and sends the DCI0 to the user equipment through a PDCCH.

The above-described aspects and any possible implementations further provide an implementation in which the DCI0 includes:

an allocated MCS type field indicating a total number of allocated MCS types;

a resource block allocation field, configured to carry bandwidth resources allocated to the ue, where the resource block allocation field includes at least one array, each array represents a resource allocation indication, and each resource allocation indication includes a starting location of a resource block and a number of allocated resource blocks;

and the fields of MCS and redundancy version number RV are used for carrying at least one MCS corresponding to the bandwidth resource and comprise at least one array, and each array represents the MCS corresponding to the resource block represented by one resource allocation indication.

The foregoing aspect and any possible implementation manner further provide an implementation manner, where the user equipment processes specified data by using at least one MCS included in a resource allocation result, and maps the processed data to a bandwidth resource included in the resource allocation result, including:

based on each MCS contained in the resource allocation result, the user equipment utilizes the MCS to modulate and encode partial data in the specified data to obtain processed partial data; and mapping the processed partial data to bandwidth resources corresponding to the MCS.

As to the above-mentioned aspect and any possible implementation manner, there is further provided an implementation manner, where the processing, by the network side, the received uplink data according to the bandwidth resource occupied by sending the uplink data and the corresponding MCS to obtain the specified data includes:

the network side determines a demodulation mode corresponding to the uplink data according to the bandwidth resources occupied by sending the uplink data and the corresponding MCS;

and the network side demodulates the received uplink data by using a demodulation mode corresponding to the uplink data to obtain the specified data.

In another aspect, an embodiment of the present invention provides a resource allocation method, executed on a network side, including:

determining at least one Modulation and Coding Scheme (MCS) corresponding to the bandwidth resource according to the bandwidth resource allocated to the user equipment and the channel quality of the bandwidth resource;

sending a resource allocation result to the user equipment, where the resource allocation result includes bandwidth resources allocated to the user equipment and the at least one MCS, so that the user equipment processes specified data by using the at least one MCS included in the resource allocation result, and maps the processed specified data to the bandwidth resources included in the resource allocation result to complete sending of uplink data;

and processing the received uplink data according to the bandwidth resources occupied by the uplink data and the corresponding MCS to obtain the specified data.

The aspect and any possible implementation manner described above further provide an implementation manner, where determining at least one modulation and coding scheme MCS corresponding to a bandwidth resource according to the bandwidth resource allocated to the user equipment and a channel quality of the bandwidth resource, includes:

determining at least one resource block set according to the bandwidth resources allocated to the user equipment, wherein each resource block set comprises one resource block or a plurality of continuous resource blocks in the bandwidth resources;

and determining the MCS corresponding to each resource block set according to the channel quality corresponding to each resource block set to obtain the at least one MCS.

As for the above-mentioned aspect and any possible implementation manner, an implementation manner is further provided, where before determining the MCS corresponding to each resource block set according to the channel quality corresponding to the resource block set, the method further includes: acquiring the channel quality corresponding to each resource block set;

determining the MCS corresponding to each resource block set according to the channel quality corresponding to each resource block set, wherein the determining comprises: and acquiring the MCS corresponding to each resource block set according to the corresponding relation between the channel quality and the MCS.

The above aspect and any possible implementation manner further provide an implementation manner that sends a resource allocation result to the user equipment, where the implementation manner includes: and sending the resource allocation result to the user equipment through a Physical Downlink Control Channel (PDCCH).

The above aspect and any possible implementation manner further provide an implementation manner that the sending the resource allocation result to the user equipment through a PDCCH includes:

and carrying the resource allocation result by using Downlink Control Information (DCI) 0, and sending the DCI0 to the user equipment through a PDCCH.

an allocated MCS type field indicating a total number of allocated MCS types;

As to the above-mentioned aspects and any possible implementation manner, there is further provided an implementation manner, where processing is performed on the received uplink data according to the bandwidth resource occupied by sending the uplink data and the corresponding MCS, so as to obtain the specified data, where the implementation manner includes:

determining a demodulation mode corresponding to the uplink data according to the bandwidth resources occupied by sending the uplink data and the corresponding MCS;

and demodulating the received uplink data by using a demodulation mode corresponding to the uplink data to obtain the specified data.

In another aspect, an embodiment of the present invention provides a resource allocation system, including a network side and a user equipment;

the network side is configured to determine at least one modulation and coding scheme MCS corresponding to the bandwidth resource according to the bandwidth resource allocated to the user equipment and the channel quality of the bandwidth resource;

the network side is further configured to send a resource allocation result to the ue, where the resource allocation result includes the bandwidth resource allocated to the ue and the at least one MCS;

the user equipment is used for processing the specified data by using at least one MCS contained in the resource allocation result and mapping the processed specified data to the bandwidth resource contained in the resource allocation result so as to finish the sending of the uplink data;

and the network side is further configured to process the received uplink data according to the bandwidth resource occupied by sending the uplink data and the corresponding MCS, so as to obtain the specified data.

The network side is specifically configured to, when determining at least one modulation and coding scheme MCS corresponding to the bandwidth resource according to the bandwidth resource allocated to the user equipment and the channel quality of the bandwidth resource:

The above aspect and any possible implementation manner further provide an implementation manner, where the network side is further configured to obtain, by the network side, channel quality corresponding to each resource block set;

when the network side is configured to determine the MCS corresponding to each resource block set according to the channel quality corresponding to each resource block set, the network side is specifically configured to: and the network side acquires the MCS corresponding to each resource block set according to the corresponding relation between the channel quality and the MCS.

As for the above-mentioned aspect and any possible implementation manner, an implementation manner is further provided, where the network side is configured to, when sending the resource allocation result to the user equipment, specifically: and the network side sends the resource allocation result to the user equipment through a Physical Downlink Control Channel (PDCCH).

As for the above-mentioned aspect and any possible implementation manner, there is further provided an implementation manner, where the network side is configured to, when sending the resource allocation result to the user equipment through the PDCCH, specifically:

an allocated MCS type field indicating a total number of allocated MCS types;

As to the above-mentioned aspect and any possible implementation manner, there is further provided an implementation manner, where the user equipment is configured to process the specified data by using at least one MCS included in the resource allocation result, and map the processed data to the bandwidth resource included in the resource allocation result, specifically configured to:

As to the above-mentioned aspect and any possible implementation manner, there is further provided an implementation manner, where the network side is configured to process the received uplink data according to the bandwidth resource occupied by sending the uplink data and the corresponding MCS, and when obtaining the specified data, the network side is specifically configured to:

In another aspect, an embodiment of the present invention provides a resource allocation apparatus, disposed on a network side, including:

an obtaining unit, configured to determine at least one modulation and coding scheme MCS corresponding to a bandwidth resource according to the bandwidth resource allocated to the user equipment and a channel quality of the bandwidth resource;

a sending unit, configured to send a resource allocation result to the ue, where the resource allocation result includes a bandwidth resource allocated to the ue and the at least one MCS, so that the ue processes specified data by using the at least one MCS included in the resource allocation result, and maps the processed specified data to the bandwidth resource included in the resource allocation result to complete sending of uplink data;

and the processing unit is used for processing the received uplink data according to the bandwidth resources occupied by the uplink data and the corresponding MCS to obtain the specified data.

The above-described aspect and any possible implementation manner further provide an implementation manner, where the obtaining unit is specifically configured to:

The above-described aspect and any possible implementation further provide an implementation, where the obtaining unit is further configured to: acquiring the channel quality corresponding to each resource block set;

the obtaining unit is specifically configured to: and acquiring the MCS corresponding to each resource block set according to the corresponding relation between the channel quality and the MCS.

As for the above-mentioned aspect and any possible implementation manner, there is further provided an implementation manner, where the sending unit is specifically configured to: and sending the resource allocation result to the user equipment through a Physical Downlink Control Channel (PDCCH).

As for the above-mentioned aspect and any possible implementation manner, there is further provided an implementation manner, where the sending unit is specifically configured to:

an allocated MCS type field indicating a total number of allocated MCS types;

The above-described aspect and any possible implementation further provide an implementation, where the processing unit is specifically configured to:

One of the above technical solutions has the following beneficial effects:

in the embodiment of the invention, aiming at the bandwidth resources allocated to the user equipment, at least one MCS is provided for the user equipment according to the channel quality of the bandwidth resources, so that the bandwidth resources with better channel quality and poorer channel quality can be allocated to different MCSs, and the problems of incapability of fully utilizing the bandwidth resources, higher error rate and demodulation failure caused by the fact that the bandwidth resources only have the unique MCS in the prior art can be avoided to a certain extent, therefore, the embodiment of the invention can improve the utilization rate of the bandwidth resources, reduce the error rate of data transmission and avoid data demodulation failure to a certain extent, thereby improving the efficiency of uplink data transmission and reducing the time delay of the uplink data transmission.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a diagram illustrating a corresponding example of uplink resource allocation and modulation and coding scheme in the prior art;

fig. 2 is an interaction flow diagram of a resource allocation method according to an embodiment of the present invention;

fig. 3 is a diagram of a corresponding example of uplink resource allocation and modulation and coding scheme in the embodiment of the present invention;

fig. 4 is a schematic flow chart of a resource allocation method on a network side according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a resource allocation system according to an embodiment of the present invention;

fig. 6 is a functional block diagram of a resource allocation apparatus according to an embodiment of the present invention.

[ detailed description ] embodiments

For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings.

It should be understood that the described embodiments are only some embodiments of the invention, and 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 invention.

The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that the term "and/or" as used herein is merely one type of association that describes 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.

The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrases "if determined" or "if detected (a stated condition or event)" may be interpreted as "when determined" or "in response to a determination" or "when detected (a stated condition or event)" or "in response to a detection (a stated condition or event)", depending on the context.

The embodiment of the invention provides a resource allocation method which is applied to a system comprising a network side and user equipment. Please refer to fig. 2, which is an interactive flowchart illustrating a resource allocation method according to an embodiment of the present invention, wherein the method includes the following steps:

201. the network side determines at least one Modulation and Coding Scheme (MCS) corresponding to the bandwidth resource according to the bandwidth resource allocated to the user equipment and the channel quality of the bandwidth resource;

202. and the network side sends a resource allocation result to the user equipment, wherein the resource allocation result comprises the bandwidth resource allocated to the user equipment and the at least one MCS.

203. And the user equipment processes the specified data by using at least one MCS contained in the resource allocation result, and maps the processed specified data to the bandwidth resource contained in the resource allocation result to finish the sending of the uplink data.

204. And the network side processes the received uplink data according to the bandwidth resources occupied by the transmitted uplink data and the corresponding MCS to obtain the specified data.

The following possible implementation is provided in the embodiment of the present invention with respect to step 201.

For example, the network side determines, according to the bandwidth resource allocated to the user equipment, at least one modulation and coding scheme MCS corresponding to the bandwidth resource, and the following feasible embodiments are provided: the network side determines at least one resource block set according to the bandwidth resources allocated to the user equipment, wherein each resource block set comprises one resource block or a plurality of continuous resource blocks in the bandwidth resources; and the network side determines the MCS corresponding to each resource block set according to the channel quality corresponding to each resource block set, so as to obtain the at least one MCS.

Please refer to fig. 3, which is a diagram illustrating a corresponding example of uplink resource allocation and modulation and coding scheme according to an embodiment of the present invention, wherein a horizontal axis represents bandwidth resources and a vertical axis represents channel quality, and the channel quality is characterized by a channel interference level, as shown in fig. 3. The figure includes bandwidth resources, control channel resources and idle resources allocated by a single user equipment, and the bandwidth resources allocated by the single user equipment refer to a plurality of resource blocks, such as resource blocks 9 to 70 in fig. 3. The channel quality (e.g., channel interference level) corresponding to the resource block is gradually changed as a whole, as shown in fig. 3, the channel quality difference between resource blocks 9 to 40 is not large, the channel interference level between resource blocks 41 to 56 is obviously increased, the channel quality is obviously decreased, the channel interference level between resource blocks 57 to 70 is obviously decreased, and the channel quality is obviously increased.

Based on this, in the embodiment of the present invention, the plurality of resource blocks on the bandwidth resource allocated to the user equipment may be divided into at least one resource block set according to the channel quality, and each resource block set may include one resource block or a plurality of consecutive resource blocks in the bandwidth resource.

In a specific embodiment, a difference between channel interference levels of two adjacent resource blocks may be calculated, and if the difference is smaller than or equal to a preset threshold, the change in channel interference level between the two resource blocks is not large, and the two resource blocks may be divided into the same resource block set, and conversely, if the difference is greater than the preset threshold, the change in channel interference level between the two resource blocks is large, and the two resource blocks need to belong to two different resource block sets respectively. As shown in fig. 3, the channel quality (e.g., the channel interference level) corresponding to the resource blocks is gradually changed as a whole, and therefore, after the resource blocks are divided into a plurality of resource block sets, the resource blocks included in the resource block sets are all continuous.

In a possible implementation scheme, after determining at least one resource block set, the network side needs to acquire the channel quality corresponding to each resource block set; and then, acquiring the MCS corresponding to each resource block set according to the corresponding relation between the channel quality and the MCS.

For example, for each resource block set, the network side may calculate an average channel quality or an equivalent channel quality according to the channel quality of each resource block included in the resource block set, and then use the average channel quality or the equivalent channel quality as the channel quality corresponding to the resource block set.

Of course, it can be understood that the resource block set may include only one resource block, that is, the MCS corresponding to each resource block may be acquired for each resource block. In a possible embodiment, the channel quality corresponding to each resource block is obtained based on each resource block, and then the MCS corresponding to each resource block is obtained according to the correspondence between the channel quality and the MCS.

Of course, only one resource block set may exist, that is, the channel interference levels of all resource blocks have small differences and change smoothly, so that all resource blocks are divided into one resource block set, and thus all resource blocks correspond to one MCS.

In a possible embodiment, the Channel quality may be represented by a Channel Quality Indicator (CQI) order, that is, the Channel quality may be a CQI order. Correspondingly, the higher the CQI order used to indicate the channel quality, the higher the order of the MCS corresponding to the channel quality.

For example, when the channel quality is represented by the CQI order, the correspondence between the channel quality and the MCS may be as shown in table 1:

CQI order	MCS
		1	QPSK
2	QPSK
		3	QPSK
4	QPSK
		5	QPSK
6	QPSK
		7	16QAM
8	16QAM
		9	16QAM
10	64QAM
		11	64QAM
12	64QAM
		13	64QAM
14	64QAM
		15	64QAM

TABLE 1

As shown in table 1, for a resource block set with CQI of 1 to 6, the corresponding MCS is a Quadrature Phase Shift Keying (QPSK) modulation and coding scheme. For a resource block set with a CQI order of 7-9, the corresponding MCS is a modulation and coding scheme including Quadrature Amplitude Modulation (QAM) of 16 symbols. And for the resource block set with the CQI order of 10-15, the corresponding MCS is a QAM modulation and coding mode containing 64 symbols.

For example, when the channel quality is expressed by CQI order, the corresponding relationship between MCS and MCS order can be as shown in table 2:

TABLE 2

As shown in table 1 and table 2, the higher the CQI order, the better the channel quality, and the lower the signal interference level, the higher the order of the MCS corresponding to the channel quality.

In the embodiment of the invention, after the channel quality of the resource block set is determined, the corresponding MCS is obtained by inquiring in the table 1 based on the channel quality.

For example, as shown in fig. 3, resource blocks 9 to 40 belong to a resource block set 1, the corresponding MCS is a modulation and coding scheme 1, resource blocks 41 to 56 belong to a resource block set 2, the corresponding MCS is a modulation and coding scheme 2, resource blocks 57 to 70 belong to a resource block set 3, and the corresponding MCS is a modulation and coding scheme 3. Comparing fig. 3 with fig. 1, it can be found that, for the resource blocks 9-70 allocated to the user equipment, as shown in fig. 3, three MCSs are allocated for the channel quality corresponding to the resource blocks, while in fig. 1, only one MCS is allocated for the resource blocks 9-70 allocated to the user equipment.

The following possible implementations are provided in the embodiments of the present invention with respect to step 202.

In the embodiment of the present invention, after obtaining the MCS of each resource block set, the network side needs to send a resource allocation result to the user equipment, where the resource allocation result may include a bandwidth resource allocated to the user equipment and the at least one MCS.

In a possible implementation, the network side may send the resource allocation result to the ue through a Physical Downlink Control Channel (PDCCH).

Specifically, the network side may use Downlink Control Information (DCI) 0 to carry the resource allocation result, and send DCI0 to the ue through the PDCCH.

Wherein the DCI0 carrying at least one MCS comprises at least the following fields:

an allocated MCS type field indicating the total number of allocated MCS types.

And the resource block allocation field is used for carrying bandwidth resources allocated to the user equipment, and comprises at least one array, each array represents a resource allocation indication, and each resource allocation indication comprises the starting position of the resource block and the number of allocated resource blocks.

For example, as shown in table 3, it is a partial format of DCI0 in the prior art:

TABLE 3

As shown in table 3, since the resources allocated to the ue in the prior art only have one MCS, the Resource block allocation field Resource block assignment only contains one start location of a Resource block (e.g. 5 in table 2) and one number of allocated resources (e.g. 13 in table 2), and the MCS and RV fields have only 5 bytes of length, which contains one MCS.

For example, as shown in table 4, it is a partial format of DCI0 in the embodiment of the present invention:

TABLE 4

In the embodiment of the present invention, in order to carry multiple allocated MCSs through the DCI0, the format of the DCI0 needs to be improved, as shown in table 4, an allocated MCS type field (Resource block number) is added to indicate the total number n of allocated MCS types (n is an integer greater than or equal to 1), that is, at least one MCS is allocated. Modifying a Resource block allocation field (Resource block allocation), wherein the modified Resource block allocation field comprises at least one array, each array is used for each array to represent a Resource allocation indication, and each Resource allocation indication comprises the starting position of a Resource block and the number of allocated Resource blocks; and the fields (MCS and RV) of the MCS and the RV are also modified, and the fields of the MCS and the RV comprise at least one array after modification, and each array represents the MCS corresponding to the resource block represented by one resource allocation indication.

It should be noted that, in the current LTE system, the maximum bandwidth of a cell is 20M and corresponds to 100 Resource blocks, so that the types of MCS allocated may be 100 in the most extreme case, that is, each Resource block corresponds to one MCS, and as shown in table 4, the length of the MCS type field (Resource block number) allocated is 7 bits (2 bits)⁷>100) Sufficient to indicate the MCS type of the resource block.

In addition, it should be noted that, as the 3GPP protocol is continuously evolved, the format of the DCI0 is also changed, but although the format of the DCI0 under different protocol versions is changed, the modified fields related to the embodiments of the present invention are always kept consistent, so the embodiments of the present invention may be adapted to various versions of protocols based on 3 GPP.

The following possible embodiments are provided in the present invention with respect to step 203.

After receiving the DCI0 transmitted by the network through the PDCCH, the ue parses the allocated MCS type field according to the resource allocation result indicated by the DCI0 to obtain the type n of the MCS, and then parses the resource block allocation field, the MCS, and the RV field to obtain the location and number of the allocated resource blocks and the corresponding MCS. Then, according to the resource allocation result of the network side, the data to be transmitted is mapped to the assigned resource block of the uplink shared channel, and the transmission of the uplink data are completed.

Specifically, based on each MCS included in the resource allocation result, the ue performs modulation and coding processing on a part of data in the designated data by using the MCS, so as to obtain processed part of data; and mapping the partial data obtained after the processing as uplink data to the bandwidth resources corresponding to the MCS.

For example, if the network side allocates two MCSs to the ue, the two MCSs respectively correspond to two resource block sets, and each resource block set includes several consecutive resource blocks. If the order of the MCS corresponding to the resource blocks 10 to 20 is 15 and the order of the MCS corresponding to the resource blocks 21 to 60 is 16, after receiving the resource allocation result, the user equipment respectively modulates and encodes the data to be transmitted according to the two MCSs, maps the modulated and encoded data to the bandwidth resources corresponding to the MCSs, and completes the transmission of the uplink data, for example, a part of the data is modulated and encoded by using the MCS with the order of 15, then the modulated and encoded data is mapped to the resource blocks 10 to 20, and the other part of the data is modulated and encoded by using the MCS with the order of 16, and then the modulated and encoded data is mapped to the resource blocks 21 to 60, thereby realizing the transmission and transmission of the uplink data.

The following possible implementation is provided in the present embodiment with respect to step 204.

Specifically, the network side may receive uplink data sent by the user equipment through a bandwidth resource (including a designated resource block) of the uplink shared channel, and then process the received uplink data according to the bandwidth resource occupied by sending the uplink data and the corresponding MCS, to obtain the designated data.

The network side can determine a demodulation mode corresponding to the uplink data according to the bandwidth resources occupied by the uplink data and the corresponding MCS; and then, demodulating the received uplink data by using a demodulation mode corresponding to the uplink data to obtain the specified data.

It should be noted that, in the embodiment of the present invention, the network side sends the resource block set and the corresponding MCS to the user equipment, and the network side locally stores the corresponding relationship between the resource block set and the MCS, so that the network side can determine which resource blocks are occupied for transmitting the uplink data according to the bandwidth resources occupied by the uplink data, and further obtain the corresponding MCS in the corresponding relationship, and then further obtain the demodulation mode corresponding to the uplink data.

The embodiment of the invention also provides a resource allocation method which is executed on the network side. Please refer to fig. 4, which is a flowchart illustrating a resource allocation method on a network side according to an embodiment of the present invention, where the method includes the following steps:

401. and determining at least one Modulation and Coding Scheme (MCS) corresponding to the bandwidth resource according to the bandwidth resource allocated to the user equipment and the channel quality of the bandwidth resource.

402. And sending a resource allocation result to the user equipment, wherein the resource allocation result comprises bandwidth resources allocated to the user equipment and the at least one MCS, so that the user equipment processes the specified data by using the at least one MCS contained in the resource allocation result, and maps the processed specified data to the bandwidth resources contained in the resource allocation result to complete the sending of the uplink data.

403. And processing the received uplink data according to the bandwidth resources occupied by the uplink data and the corresponding MCS to obtain the specified data.

Since this embodiment is a single-side process on the network side in the embodiment shown in fig. 2, a part not described in detail in this embodiment may refer to the related description of fig. 2, and is not described again here.

The embodiment of the invention further provides an embodiment of a device for realizing the steps and the method in the embodiment of the method.

Referring to fig. 5, it is a schematic structural diagram of a resource allocation system according to an embodiment of the present invention, and as shown in fig. 5, the system includes a network side and a user equipment.

The network side 100 is configured to determine at least one modulation and coding scheme MCS corresponding to a bandwidth resource according to the bandwidth resource allocated to the ue and a channel quality of the bandwidth resource;

the network side 100 is further configured to send a resource allocation result to the ue, where the resource allocation result includes the bandwidth resource allocated to the ue and the at least one MCS;

the ue 200 is configured to process the specified data by using at least one MCS included in the resource allocation result, and map the processed specified data to the bandwidth resource included in the resource allocation result to complete sending of the uplink data;

the network side 100 is further configured to process the received uplink data according to the bandwidth resource occupied by sending the uplink data and the corresponding MCS, so as to obtain the specified data.

In a feasible embodiment, when the network side 100 is configured to determine at least one modulation and coding scheme MCS corresponding to a bandwidth resource according to the bandwidth resource allocated to the user equipment and a channel quality of the bandwidth resource, specifically, is configured to:

In a possible implementation, the network side 100 is further configured to obtain, by the network side, a channel quality corresponding to each resource block set;

the network side 100 is specifically configured to, when determining the MCS corresponding to each resource block set according to the channel quality corresponding to each resource block set,: the network side 100 obtains the MCS corresponding to each resource block set according to the correspondence between the channel quality and the MCS.

In one possible implementation, the channel quality is represented by a channel quality indicator, CQI, order; correspondingly, the higher the CQI order used to indicate the channel quality, the higher the order of the MCS corresponding to the channel quality.

In a possible implementation, when the network side 100 is configured to send the resource allocation result to the user equipment, specifically, to: the network side 100 sends the resource allocation result to the ue through a physical downlink control channel PDCCH.

In a possible embodiment, when the network side 100 is configured to send the resource allocation result to the user equipment through the PDCCH, specifically, to: the network side 100 utilizes the downlink control information DCI0 to carry the resource allocation result, and sends the DCI0 to the user equipment through the PDCCH.

In one possible embodiment, the DCI0 includes:

an allocated MCS type field indicating a total number of allocated MCS types;

In a possible embodiment, when the user equipment 200 is configured to process specified data by using at least one MCS included in a resource allocation result, and map the processed data to a bandwidth resource included in the resource allocation result, the user equipment is specifically configured to:

In a feasible implementation, the network side 100 is configured to, when processing the received uplink data according to the bandwidth resource occupied by sending the uplink data and the corresponding MCS to obtain the specified data, specifically:

the network side 100 determines a demodulation mode corresponding to the uplink data according to the bandwidth resource occupied by sending the uplink data and the corresponding MCS;

the network side 100 demodulates the received uplink data by using the demodulation mode corresponding to the uplink data to obtain the specified data.

Since each unit in the present embodiment can execute the method shown in fig. 2, reference may be made to the related description of fig. 2 for a part of the present embodiment that is not described in detail.

The embodiment of the invention also provides a resource allocation device which is arranged at the network side. Please refer to fig. 6, which is a block diagram illustrating a resource allocation apparatus according to an embodiment of the present invention. As shown, the apparatus comprises:

an obtaining unit 60, configured to determine at least one modulation and coding scheme MCS corresponding to a bandwidth resource according to the bandwidth resource allocated to the ue and a channel quality of the bandwidth resource;

a sending unit 61, configured to send a resource allocation result to the ue, where the resource allocation result includes a bandwidth resource allocated to the ue and the at least one MCS, so that the ue processes specified data by using the at least one MCS included in the resource allocation result, and maps the processed specified data to the bandwidth resource included in the resource allocation result to complete sending of uplink data;

and a processing unit 62, configured to process the received uplink data according to the bandwidth resource occupied by sending the uplink data and the corresponding MCS, so as to obtain the specified data.

In a possible embodiment, the obtaining unit 60 is specifically configured to:

In a possible embodiment, the obtaining unit 60 is further configured to: acquiring the channel quality corresponding to each resource block set;

the obtaining unit 60 is specifically configured to: and acquiring the MCS corresponding to each resource block set according to the corresponding relation between the channel quality and the MCS.

In a possible implementation, the sending unit 61 is specifically configured to: and sending the resource allocation result to the user equipment through a Physical Downlink Control Channel (PDCCH).

In a possible implementation, the sending unit 61 is specifically configured to: and carrying the resource allocation result by using Downlink Control Information (DCI) 0, and sending the DCI0 to the user equipment through a PDCCH.

In one possible embodiment, the DCI0 includes:

an allocated MCS type field indicating a total number of allocated MCS types;

In a possible embodiment, the processing unit 62 is specifically configured to:

The technical scheme of the embodiment of the invention has the following beneficial effects:

in the embodiment of the invention, a network side determines at least one MCS corresponding to bandwidth resources according to the bandwidth resources allocated to user equipment and the channel quality of the bandwidth resources; sending a resource allocation result to the user equipment, wherein the resource allocation result comprises bandwidth resources allocated to the user equipment and at least one MCS; the user equipment further processes the specified data by using at least one MCS contained in the resource allocation result, and maps the processed specified data to the bandwidth resource contained in the resource allocation result to complete the sending of the uplink data; and the network side processes the received uplink data according to the bandwidth resources occupied by the transmitted uplink data and the corresponding MCS to obtain the specified data. In the embodiment of the invention, aiming at the bandwidth resources allocated to the user equipment, at least one MCS is provided for the user equipment according to the channel quality of the bandwidth resources, so that the bandwidth resources with better channel quality and poorer channel quality can be allocated to different MCSs, and the problems of incapability of fully utilizing the bandwidth resources, higher error rate and demodulation failure caused by the fact that the bandwidth resources only have the unique MCS in the prior art can be avoided to a certain extent, therefore, the embodiment of the invention can improve the utilization rate of the bandwidth resources, reduce the error rate of data transmission and avoid data demodulation failure to a certain extent, thereby improving the efficiency of uplink data transmission and reducing the time delay of the uplink data transmission.

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 embodiments provided in the present invention, 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 units is only one logical division, and there may be other divisions in actual implementation, 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 invention 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 integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.

The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) or a Processor (Processor) to execute some steps of the methods according to the embodiments of the present invention. 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 purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A resource allocation method is applied to a system comprising a network side and user equipment; the method comprises the following steps:

the network side processes the received uplink data according to the bandwidth resources occupied by the uplink data and the corresponding MCS to obtain the specified data;

the network side determines at least one Modulation and Coding Scheme (MCS) corresponding to the bandwidth resource according to the bandwidth resource allocated to the user equipment and the channel quality of the bandwidth resource, and the MCS comprises:

the network side determines at least one resource block set according to the bandwidth resources distributed to the user equipment, wherein each resource block set comprises a plurality of continuous resource blocks in the bandwidth resources;

the network side determines the MCS corresponding to each resource block set according to the channel quality corresponding to the resource block set to obtain the at least one MCS;

wherein, the network side determines at least one resource block set according to the bandwidth resource allocated to the user equipment, and the determining comprises:

calculating the difference value of the channel interference level between two adjacent resource blocks in the bandwidth resource; if the difference value is smaller than or equal to a preset threshold value, dividing the two adjacent resource blocks into the same resource block set; and if the difference value is larger than a preset threshold value, dividing the two adjacent resource blocks into different resource block sets.

2. The method of claim 1, wherein before the network side determines the MCS corresponding to each resource block set according to the channel quality corresponding to the resource block set, the method further comprises: the network side acquires the channel quality corresponding to each resource block set;

3. The method of claim 2,

the channel quality is represented by a Channel Quality Indicator (CQI) order;

4. The method of claim 1, wherein the network side sends the resource allocation result to the ue, and wherein the method comprises: and the network side sends the resource allocation result to the user equipment through a Physical Downlink Control Channel (PDCCH).

5. The method of claim 4, wherein the network side sends the resource allocation result to the user equipment through a PDCCH, and comprises:

6. The method of claim 5, wherein the DCI0 comprises:

an allocated MCS type field indicating a total number of allocated MCS types;

7. The method of claim 1, wherein the ue processes the specific data by using at least one MCS included in the resource allocation result, and maps the processed data to the bandwidth resource included in the resource allocation result, comprising:

8. The method of claim 1, wherein the network side processes the received uplink data according to the bandwidth resource occupied by sending the uplink data and the corresponding MCS to obtain the specified data, including:

9. A resource allocation method, performed on a network side, the method comprising:

processing the received uplink data according to the bandwidth resources occupied by the uplink data and the corresponding MCS to obtain the specified data;

determining at least one Modulation and Coding Scheme (MCS) corresponding to the bandwidth resource according to the bandwidth resource allocated to the user equipment and the channel quality of the bandwidth resource, including:

determining at least one resource block set according to the bandwidth resources allocated to the user equipment, wherein each resource block set comprises a plurality of continuous resource blocks in the bandwidth resources;

determining the MCS corresponding to each resource block set according to the channel quality corresponding to each resource block set to obtain the at least one MCS;

10. The method of claim 9, wherein before determining the MCS corresponding to each resource block set according to the channel quality corresponding to the resource block set, the method further comprises: acquiring the channel quality corresponding to each resource block set;

11. The method of claim 10,

the channel quality is represented by a Channel Quality Indicator (CQI) order;

12. The method of claim 11, wherein sending the resource allocation result to the ue comprises: and sending the resource allocation result to the user equipment through a Physical Downlink Control Channel (PDCCH).

13. The method of claim 12, wherein sending the resource allocation result to the user equipment through a PDCCH comprises:

14. The method of claim 13, wherein the DCI0 comprises:

an allocated MCS type field indicating a total number of allocated MCS types;

15. The method of claim 9, wherein processing the received uplink data according to the bandwidth resource occupied by sending the uplink data and the corresponding MCS to obtain the specified data comprises:

16. A resource allocation system is characterized by comprising a network side and user equipment;

the network side is further configured to process the received uplink data according to the bandwidth resource occupied by sending the uplink data and the corresponding MCS, so as to obtain the specified data;

17. The system according to claim 16, wherein the network side is further configured to obtain, by the network side, a channel quality corresponding to each resource block set;

18. The system of claim 17,

the channel quality is represented by a Channel Quality Indicator (CQI) order;

19. The system according to claim 16, wherein the network side, when configured to send the resource allocation result to the user equipment, is specifically configured to: and the network side sends the resource allocation result to the user equipment through a Physical Downlink Control Channel (PDCCH).

20. The system according to claim 19, wherein the network side is configured to, when sending the resource allocation result to the user equipment through the PDCCH, specifically:

21. The system of claim 20, wherein the DCI0 comprises:

an allocated MCS type field indicating a total number of allocated MCS types;

22. The system according to claim 16, wherein the ue is configured to process the specified data by using at least one MCS included in the resource allocation result, and when mapping the processed data to the bandwidth resource included in the resource allocation result, specifically configured to:

23. The system of claim 16, wherein the network side is configured to, according to a bandwidth resource occupied by sending the uplink data and a corresponding MCS, process the received uplink data, and when obtaining the specified data, specifically configured to:

24. A resource allocation apparatus, provided on a network side, the apparatus comprising:

a processing unit, configured to process the received uplink data according to the bandwidth resource occupied by sending the uplink data and the corresponding MCS, so as to obtain the specified data;

the obtaining unit is specifically configured to:

25. The apparatus of claim 24, wherein the obtaining unit is further configured to: acquiring the channel quality corresponding to each resource block set;

26. The apparatus of claim 25,

the channel quality is represented by a Channel Quality Indicator (CQI) order;

27. The apparatus according to claim 26, wherein the sending unit is specifically configured to: and sending the resource allocation result to the user equipment through a Physical Downlink Control Channel (PDCCH).

28. The apparatus according to claim 27, wherein the sending unit is specifically configured to:

29. The apparatus of claim 28, wherein the DCI0 comprises:

an allocated MCS type field indicating a total number of allocated MCS types;

30. The apparatus according to claim 24, wherein the processing unit is specifically configured to: