CN111954312A - User selection method and system on channel - Google Patents
User selection method and system on channel Download PDFInfo
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- CN111954312A CN111954312A CN202010653837.1A CN202010653837A CN111954312A CN 111954312 A CN111954312 A CN 111954312A CN 202010653837 A CN202010653837 A CN 202010653837A CN 111954312 A CN111954312 A CN 111954312A
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- 238000010187 selection method Methods 0.000 title abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 15
- 230000005540 biological transmission Effects 0.000 description 2
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- 238000005516 engineering process Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/121—Wireless traffic scheduling for groups of terminals or users
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
- H04W72/566—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient
Abstract
The invention provides a user selection method on a channel, wherein the user selection method on the channel comprises the following steps: selecting a plurality of users according to the channel gain of the users; calculating a plurality of signal-to-leakage-and-noise ratios corresponding to the plurality of users, and forming a user set according to the signal-to-leakage-and-noise ratios; and selecting an optimal user set. The invention also provides a user selection system on the channel of the method. The invention can improve the working rate under the condition of considering the channel gain and the potential interference of other users.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and a system for selecting a user on a channel.
Background
In a modern society, useful information can be obtained through transmission among signals, and information is transmitted through data transmission among the signals, so that the social life is facilitated, and the social development is promoted.
Currently, the issue of user selection on a channel remains a common concern.
The invention provides a user selection method and a user selection system on a channel, which can improve the working rate under the condition of considering channel gain and potential interference of other users.
Disclosure of Invention
Objects of the invention
In order to overcome at least one of the above drawbacks of the prior art, the present invention provides a method and a system for selecting a user on a channel, which can improve the operating rate in consideration of the channel gain and the potential interference of other users.
(II) technical scheme
As a first aspect of the present invention, the present invention discloses a user selection method on a channel, comprising the steps of:
selecting a plurality of users according to the channel gain of the users;
calculating a plurality of signal-to-leakage-and-noise ratios corresponding to the plurality of users, and forming a user set according to the signal-to-leakage-and-noise ratios;
and selecting an optimal user set.
In one possible embodiment, the users are users whose channel gain meets certain requirements.
In one possible embodiment, the channel gain is represented by channel state information of each user; the signal-to-leakage-and-noise ratio is obtained by dividing the equivalent channel gain of a certain user in the plurality of users after precoding by the sum of the received noise of the user and the power of the data leaked to the plurality of users.
In a possible embodiment, the set of users is a set of users whose signal to leakage plus noise ratio of the user meets a specific requirement.
In a possible implementation manner, an average value of the signal to leakage noise ratios corresponding to the users in the user set is calculated, and the user set with the largest average value is selected as the optimal user set.
As a second aspect of the present invention, the present invention discloses a user selection system on a channel, comprising:
the information acquisition module is used for selecting a plurality of users according to the channel gains of the users;
the information analysis module is used for calculating a plurality of signal-to-leakage-and-noise ratios corresponding to the plurality of users and forming a user set according to the signal-to-leakage-and-noise ratios;
and the selection determining module is used for selecting the optimal user set.
In one possible embodiment, the users are users whose channel gain meets certain requirements.
In one possible embodiment, the channel gain is represented by channel state information of each user; the signal-to-leakage-and-noise ratio is obtained by dividing the equivalent channel gain of a certain user in the plurality of users after precoding by the sum of the received noise of the user and the power of the data leaked to the plurality of users.
In a possible embodiment, the set of users is a set of users whose signal to leakage plus noise ratio of the user meets a specific requirement.
In a possible implementation manner, an average value of the signal to leakage noise ratios corresponding to the users in the user set is calculated, and the user set with the largest average value is selected as the optimal user set.
(III) advantageous effects
According to the user selection method and the user selection system on the channel, provided by the invention, a plurality of users are selected according to the channel gain of the users, a plurality of signal-to-leakage-and-noise ratios corresponding to the users are calculated, and a user set is formed according to the signal-to-leakage-and-noise ratios, so that an optimal user set can be selected from the user sets to serve as a selected user; the operating rate can be increased taking into account channel gain and potential interference from other users.
Drawings
The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining and illustrating the present invention and should not be construed as limiting the scope of the present invention.
Fig. 1 is a flowchart of a method for user selection on a channel according to the present invention.
Fig. 2 is a schematic structural diagram of a system for user selection on a channel according to the present invention.
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the embodiments of the present invention.
It should be noted that: in the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described are some embodiments of the present invention, not all embodiments, and features in embodiments and embodiments in the present application may be combined with each other without conflict. 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.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are used for convenience in describing the invention and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the scope of the invention.
A first embodiment of a method for user selection on a channel according to the present invention is described in detail below with reference to fig. 1. As shown in fig. 1, the method for selecting a user on a channel provided in this embodiment mainly includes: step 1, step 2 and step 3.
Selecting a plurality of users according to the channel gain of the users; in the process of user selection, information acquisition operation is required, namely a plurality of users are selected; the method for selecting a plurality of users may be: the channel gain of each user is calculated, and then a plurality of users are selected according to the channel gains of all the users.
Calculating a plurality of signal-to-leakage-and-noise ratios corresponding to the plurality of users, and forming a user set according to the signal-to-leakage-and-noise ratios so as to form a plurality of user sets, wherein the user sets are user sets to be selected; there are one or more users in the set of users.
And selecting an optimal user set. The user sets can be analyzed and processed, and an optimal user set in the user sets is selected, wherein the optimal user set is a user selected on a channel.
Wherein the users are users whose channel gains meet specific requirements. The users whose channel gains meet the specific requirements may be a plurality of users selected from the channel gains from large to small, for example, a total of a users, and B users may be selected from the channel gains from large to small (at this time, the B users are a plurality of users); the users whose channel gains meet specific requirements may be C users whose channel gains exceed a specific value X (at this time, the C users are a plurality of users).
Wherein the channel gain is represented by channel state information of each user; the acquisition of the channel state information may be estimated using reciprocity of a channel; the obtaining of the channel state information may be estimated at the user equipment; the channel state information of each user may be represented according to a channel state information division value of several users. The signal-to-leakage-and-noise ratio is obtained by dividing the equivalent channel gain of a certain user in the plurality of users after precoding by the sum of the received noise of the user and the power of the data leaked to the plurality of users.
And the user set is a user set with the signal-to-leakage-and-noise ratio of the user meeting specific requirements. The user set with the signal-to-leakage-and-noise ratio of the users meeting the specific requirements can be a user set consisting of N users selected from large to small according to the signal-to-leakage-and-noise ratio; the user set whose signal to leakage noise ratio of the user meets a specific requirement may be a user set formed by users whose signal to leakage noise ratio exceeds a specific value Y.
And calculating the average value of the signal-to-leakage-and-noise ratios corresponding to the users in the user set, and selecting the user set with the largest average value as the optimal user set. After considering the channel gain of the users and the signal-to-leakage-and-noise ratios of each user and other users, calculating the average value of the signal-to-leakage-and-noise ratios corresponding to the users in each user set, further comparing the average values of the signal-to-leakage-and-noise ratios corresponding to the users in a plurality of user sets, and selecting the user set with the largest average value as the optimal user set, so that the working rate is improved under the condition of considering the channel gain and the potential interference of other users.
The invention selects a plurality of users according to the channel gain of the users, calculates a plurality of signal-to-leakage-and-noise ratios corresponding to the users, and forms a user set according to the signal-to-leakage-and-noise ratios, thereby selecting an optimal user set from the user sets as a selected user. The user selection method on the channel can improve the working rate under the condition of considering the channel gain and the potential interference of other users.
A first embodiment of an on-channel user selection system provided by the present invention is described in detail below with reference to fig. 2. As shown in fig. 2, the system for selecting a user on a channel provided in this embodiment mainly includes: the device comprises an information acquisition module, an information analysis module and a selection determination module.
The information acquisition module is used for selecting a plurality of users according to the channel gains of the users; the method for selecting a plurality of users may be: the channel gain of each user is calculated, and then a plurality of users are selected according to the channel gains of all the users.
The information analysis module is used for calculating a plurality of signal-to-leakage-and-noise ratios corresponding to the plurality of users, forming a user set according to the signal-to-leakage-and-noise ratios, and further forming a plurality of user sets, wherein the user sets are user sets to be selected; there are one or more users in the set of users.
And the selection determining module is used for selecting the optimal user set. The selection determining module may analyze and process the plurality of user sets, and select an optimal user set from the plurality of user sets, where the optimal user set is a user selected on a channel.
Wherein the users are users whose channel gains meet specific requirements. The users whose channel gains meet the specific requirements may be a plurality of users selected from the channel gains from large to small, for example, a total of a users, and B users may be selected from the channel gains from large to small (at this time, the B users are a plurality of users); the users whose channel gains meet specific requirements may be C users whose channel gains exceed a specific value X (at this time, the C users are a plurality of users).
Wherein the channel gain is represented by channel state information of each user; the acquisition of the channel state information may be estimated using reciprocity of a channel; the obtaining of the channel state information may be estimated at the user equipment; the channel state information of each user may be represented according to a channel state information division value of several users. The signal-to-leakage-and-noise ratio is obtained by dividing the equivalent channel gain of a certain user in the plurality of users after precoding by the sum of the received noise of the user and the power of the data leaked to the plurality of users.
And the user set is a user set with the signal-to-leakage-and-noise ratio of the user meeting specific requirements. The user set with the signal-to-leakage-and-noise ratio of the users meeting the specific requirements can be a user set consisting of N users selected from large to small according to the signal-to-leakage-and-noise ratio; the user set whose signal to leakage noise ratio of the user meets a specific requirement may be a user set formed by users whose signal to leakage noise ratio exceeds a specific value Y.
And calculating the average value of the signal-to-leakage-and-noise ratios corresponding to the users in the user set, and selecting the user set with the largest average value as the optimal user set. After considering the channel gain of the users and the signal-to-leakage-and-noise ratios of each user and other users, calculating the average value of the signal-to-leakage-and-noise ratios corresponding to the users in each user set, further comparing the average values of the signal-to-leakage-and-noise ratios corresponding to the users in a plurality of user sets, and selecting the user set with the largest average value as the optimal user set, so that the working rate is improved under the condition of considering the channel gain and the potential interference of other users.
According to the invention, a plurality of users are selected by an information acquisition module according to the channel gains of the users, a plurality of signal-to-leakage-and-noise ratios corresponding to the users are calculated by an information analysis module, a user set is formed according to the signal-to-leakage-and-noise ratios, and an optimal user set is selected by a selection determination module. The user selection system on the channel can improve the working rate under the condition of considering the channel gain and the potential interference of other users.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. A method for user selection on a channel, comprising the steps of:
selecting a plurality of users according to the channel gain of the users;
calculating a plurality of signal-to-leakage-and-noise ratios corresponding to the plurality of users, and forming a user set according to the signal-to-leakage-and-noise ratios;
and selecting an optimal user set.
2. The method of claim 1, wherein the plurality of users are users whose channel gains meet specific requirements.
3. The method of user selection on a channel of claim 2 wherein the channel gain is represented by channel state information for each user; the signal-to-leakage-and-noise ratio is obtained by dividing the equivalent channel gain of a certain user in the plurality of users after precoding by the sum of the received noise of the user and the power of the data leaked to the plurality of users.
4. The method of claim 3, wherein the set of users is a set of users whose signal to leakage plus noise ratios meet specific requirements.
5. The method according to claim 4, wherein an average of the signal-to-leakage-and-noise ratios corresponding to the users in the user set is calculated, and the user set with the largest average is selected as the optimal user set.
6. A system for user selection on a channel, comprising:
the information acquisition module is used for selecting a plurality of users according to the channel gains of the users;
the information analysis module is used for calculating a plurality of signal-to-leakage-and-noise ratios corresponding to the plurality of users and forming a user set according to the signal-to-leakage-and-noise ratios;
and the selection determining module is used for selecting the optimal user set.
7. The system of claim 6, wherein the plurality of users are users whose channel gains meet certain requirements.
8. The system of claim 7, wherein the channel gain is represented by channel state information for each user; the signal-to-leakage-and-noise ratio is obtained by dividing the equivalent channel gain of a certain user in the plurality of users after precoding by the sum of the received noise of the user and the power of the data leaked to the plurality of users.
9. The on-channel user selection system of claim 8, wherein the set of users is a set of users whose signal-to-leakage-and-noise ratios of the users meet a specific requirement.
10. The system according to claim 9, wherein an average of the signal to leakage noise ratios corresponding to the users in the user set is calculated, and the user set with the largest average is selected as the optimal user set.
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