CN109547078B - Communication transmission device and method - Google Patents
Communication transmission device and method Download PDFInfo
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- CN109547078B CN109547078B CN201710856670.7A CN201710856670A CN109547078B CN 109547078 B CN109547078 B CN 109547078B CN 201710856670 A CN201710856670 A CN 201710856670A CN 109547078 B CN109547078 B CN 109547078B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
- H04B7/0452—Multi-user MIMO systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0802—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
Abstract
A communication transmission method and apparatus. The method comprises the following steps: grouping a plurality of antenna patterns of the communication transmission device according to antenna device groups corresponding to different antenna combinations to form a plurality of antenna pattern groups, and selecting an antenna pattern group from the plurality of antenna pattern groups; selecting a first antenna pattern combination and a last antenna pattern combination from the plurality of antenna pattern combinations according to a plurality of signal parameter statistics of the plurality of antenna pattern combinations corresponding to the selected antenna pattern group; and setting the first antenna pattern combination or the last antenna pattern combination as a transmission antenna pattern combination for transmission according to the first data related to the first antenna pattern combination and the second data related to the last antenna pattern combination so as to improve the data transmission efficiency.
Description
Technical Field
The present disclosure relates to a communication transmission method, and more particularly, to a communication transmission method for selecting antenna pattern combinations.
Background
In a conventional Multi-User Multiple Input Multiple Output (MU-MIMO) antenna system, a wireless Access Point (AP) or a Router (Router) determines a location of a User (User) by detecting a Received Signal Strength Indicator (RSSI) and further sets a pointing direction of the antenna.
However, the user's location is determined only according to the received signal strength indicator, the exact location of the user cannot be known, and when a malicious wireless access point (Rogue AP) or a malicious Router (Rogue Router) exists in the system, these malicious devices are often misjudged as the user due to the signal strength, which causes the antenna pointing error, further causing the data transmission rate of the user to decrease.
Therefore, how to properly set the antenna orientation to improve the transmission between the user and the antenna becomes a big issue in the mimo antenna system for multiple users.
Disclosure of Invention
The present disclosure provides a communication transmission method, which is suitable for selecting one antenna pattern combination from a plurality of antenna pattern combinations of a communication transmission device such as a wireless access point or a router to perform uplink transmission and selecting one antenna pattern combination to perform downlink transmission in a multi-user multi-input multi-output system according to a received signal strength index and a data transmission rate change. In contrast to the conventional manner of selecting antenna pattern combinations based solely on rssi, the present disclosure contemplates adjusting the antenna pattern combinations used to perform transmissions substantially representative of the data rate of transmissions between the communications transmitter and the user. The communication transmission method provided by the present disclosure can consider the received signal strength indicator and the data transmission rate at the same time, and further introduce the Grouping concept, so that the transmission efficiency between the communication transmission device and the user is improved.
In one aspect of the present disclosure, a communication transmission method is provided, which includes: grouping a plurality of antenna patterns of the communication transmission device according to antenna device groups corresponding to different antenna combinations of different devices of the user terminal to form a plurality of antenna pattern groups, and selecting at least one antenna pattern group from the plurality of antenna pattern groups; selecting a first antenna pattern combination and a last antenna pattern combination from the plurality of antenna pattern combinations according to the statistics of a plurality of signal parameters of the plurality of antenna pattern combinations corresponding to each selected antenna pattern group; and setting the first antenna pattern combination or the last antenna pattern combination as a transmission antenna pattern combination for data transmission according to the first data related to the first antenna pattern combination and the second data related to the last antenna pattern combination.
In some embodiments, the step of selecting at least one antenna pattern group comprises: when the network state is unknown, selecting the antenna pattern groups; and when the network state is known, selecting one or more of the antenna pattern groups according to the weights between the antenna device groups and the antenna pattern groups and the comparison result of the corresponding critical values of the antenna pattern groups. Wherein the plurality of weights depend on the network state.
In some embodiments, the communication transmission method further comprises: and switching the communication transmission device from the uplink first antenna pattern combination to the uplink last antenna pattern combination corresponding to the uplink data transmission or from the downlink first antenna pattern combination to the downlink last antenna pattern combination corresponding to the downlink data transmission according to the relationship between the first data and the second data.
In some embodiments, the communications transmitter switches from the uplink first antenna pattern combination to the uplink last antenna pattern combination when the uplink data transmission rate is less than the last uplink data transmission rate, and switches from the downlink first antenna pattern combination to the downlink last antenna pattern combination when the downlink data transmission rate is less than the last downlink data transmission rate.
In some embodiments, selecting a first antenna pattern combination and a last antenna pattern combination of the plurality of antenna pattern combinations according to statistics of a plurality of signal parameters corresponding to each of the at least one antenna pattern group further comprises: selecting a first antenna pattern combination and a last antenna pattern combination from the plurality of antenna pattern combinations according to a plurality of received signal strength index statistics corresponding to each of at least one antenna pattern group in the plurality of antenna pattern combinations. Wherein the first antenna pattern combination has the largest of the plurality of received signal strength indicator statistics and the last antenna pattern combination has the smallest of the plurality of received signal strength indicator statistics.
In some embodiments, switching the first antenna pattern combination or the last antenna pattern combination as the transmitting antenna pattern combination according to the first data associated with the first antenna pattern combination and the second data associated with the last antenna pattern combination further comprises: selecting the first antenna pattern combination as a transmission antenna pattern combination when the transmission rate of the first data of the first antenna pattern combination is higher than the transmission rate of the second data of the last antenna pattern combination; and selecting the last antenna pattern combination as the transmission antenna pattern combination when the transmission rate of the first data of the first antenna pattern combination is lower than the transmission rate of the second data of the last antenna pattern combination.
In one aspect of the present disclosure, a communication transmission apparatus is provided, including: a detecting unit, a processing unit and an antenna unit. The communication module is communicated with an antenna device group and is used for detecting a plurality of signal parameters and a plurality of data of the antenna device group corresponding to the user terminal. The processing unit is coupled to the detecting unit and the memory unit, and is configured to group the plurality of antenna patterns of the antenna unit according to the antenna device group to form a plurality of antenna pattern groups, and select at least one antenna pattern group from the plurality of antenna pattern groups. The processing unit is further configured to select a first antenna pattern combination and a last antenna pattern combination from a plurality of antenna pattern combinations corresponding to each of the selected at least one antenna pattern group according to the signal parameters. The processing unit is further configured to set the first antenna pattern combination or the last antenna pattern combination as a transmission antenna pattern combination according to the plurality of data and transmit the transmission antenna pattern combination to the antenna unit. The antenna unit is further configured to perform transmission with the antenna device group according to the transmission antenna pattern combination.
In some embodiments, the processing unit is further configured to select one or more of the plurality of antenna pattern groups according to a network status when the network status is determined.
In some embodiments, the processing unit is further configured to switch the antenna unit from the uplink first antenna pattern combination to the uplink last antenna pattern combination corresponding to the uplink data transmission or from the downlink first antenna pattern combination to the downlink last antenna pattern combination corresponding to the downlink data transmission according to a relationship between the first data corresponding to the first antenna pattern combination and the second data corresponding to the last antenna pattern combination.
In some embodiments, the processing unit is further configured to control the antenna unit to switch from the uplink first antenna pattern combination to the uplink last antenna pattern combination when the uplink data transmission rate is less than the last uplink data transmission rate, and to control the antenna unit to switch from the downlink first antenna pattern combination to the downlink last antenna pattern combination when the downlink data transmission rate is less than the last downlink data transmission rate.
Drawings
In order to make the aforementioned and other objects, features, and advantages of the invention, as well as others which will become apparent, reference is made to the following description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a functional block diagram of a communication transmission system according to an embodiment of the present disclosure;
fig. 2 is a flowchart illustrating a communication transmission method applying the communication transmission system of fig. 1 according to an embodiment of the present disclosure;
FIG. 3A is a diagram illustrating a partial communication setup state related to a communication transmission method according to an embodiment of the present disclosure;
FIG. 3B is a diagram illustrating a partial communication setup state with respect to a communication transmission method according to an embodiment of the present disclosure; and
fig. 3C is a diagram illustrating a partial communication setup state related to a communication transmission method according to an embodiment of the disclosure.
Detailed Description
The following detailed description of the embodiments with reference to the accompanying drawings is provided for purposes of illustration only and is not intended to limit the scope of the present disclosure, which is to be construed as a limitation on the scope of the disclosure, and any structures described as a combination of elements in any claim that results in a device having equivalent functionality will be included in the present disclosure. In addition, the drawings are for illustrative purposes only and are not drawn to scale. For ease of understanding, the same or similar elements will be described with the same reference numerals in the following description.
As used herein, the terms "comprising," "including," "having," "containing," and the like are open-ended terms that mean including, but not limited to.
As used herein, "and/or" includes any and all combinations of the described items.
The words used herein have the ordinary meaning as commonly understood in the art, in the disclosure herein and in the particular context, unless otherwise indicated. Certain terms used to describe the present disclosure will be discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing the present disclosure.
Fig. 1 is a functional block diagram of a communication transmission system according to an embodiment of the present disclosure. As shown in fig. 1, the communication transmission system includes a communication transmission apparatus 100 and a plurality of antenna apparatuses 150.
In some embodiments, the communication transmission device 100 is connected to a plurality of antenna devices 150 of the user end for data transmission via wireless communication. In some embodiments, the connection between the communication transmission apparatus 100 and the plurality of antenna apparatuses 150 is implemented by using Multi-user Multiple Input Multiple Output (MU-MIMO) technology. Based on the multi-user mimo technology, the communication transmission apparatus 100 can point the directions of the antennas to a plurality of antenna devices 150 located in different directions, so as to fully utilize the available space stream and spectral efficiency, thereby increasing the total capacity of the system.
In some embodiments, the communications transmitter 100 communicates with the plurality of antenna apparatus 150 via Orthogonal Frequency Division Multiplexing Access (OFDMA). Based on the ofdm access, the communications transmitter 100 can simultaneously communicate with a plurality of antenna units 150, and effectively solve the frequency interference in the communications.
In some embodiments, the communication transmission device 100 may be a wireless communication device such as a wireless access point or a router having multiple antennas, and the antenna device 150 may be a mobile phone of a user, a notebook computer, or even another router, but is not limited thereto, and any device having multiple antennas and capable of transmitting signals by wireless transmission is within the scope of the present disclosure.
In some embodiments, the antenna devices 150 have different antenna types, wherein the antenna type represents the number of spatial streams of the antenna device 150, and can also be expressed as the number of transmitting antennas × the number of receiving antennas, and the antenna types can be used to classify the different antenna devices 150 and serve as the basis for providing wireless resources. In some embodiments, different types of electronic devices or different types of antenna devices 150 may correspond to different spatial serial numbers, for example, the antenna device 150 with a spatial serial number of 1 × 1 may be a smart phone, the antenna device 150 with a spatial serial number of 2 × 2 may be a tablet computer, the antenna device 150 with a spatial serial number of 3 × 3 may be a notebook computer, and the antenna device 150 with a spatial serial number of 4 × 4 may be a router.
As shown in fig. 1, in some embodiments, the communication transmission apparatus 100 includes a detection unit 110, a memory unit 120, a processing unit 130, and an antenna unit 140 including at least a plurality of antenna elements. The detecting unit 110 is coupled to the memory unit 120 and the processing unit 130, the memory unit 120 is coupled to the processing unit 130, and the processing unit 130 is further coupled to the antenna unit 140.
In some embodiments, the detecting unit 110 is configured to receive a plurality of messages from the plurality of antenna devices 150 and store the received messages in the memory unit 120, and the processing unit 130 generates corresponding results according to the plurality of messages and transmits the results to the antenna unit 140 to control the antenna pattern of the antenna unit 140 and perform data transmission with the plurality of antenna devices 150.
In some embodiments, the detecting unit 110 is configured to detect a plurality of antenna types and a plurality of data corresponding to a plurality of antenna devices 150, and the detecting unit 110 is further configured to scan a plurality of signal parameters in the system. In some embodiments, the Signal parameter may be a Received Signal Strength Indicator (RSSI), but is not limited thereto, and any parameter that can be obtained in real time and is associated with Signal Strength is within the scope of the present disclosure. In some embodiments, the Data corresponding to the antenna device 150 detected by the detecting unit 110 may be a Data Rate (Data Rate), a Number of Spatial Streams (Number of Spatial Streams), or a Modulation and Coding Scheme (Index of Modulation and Coding Scheme), but is not limited thereto, and any Index that can be used to indicate the Data transmission Rate between the communication transmission device 100 and the antenna device 150 is within the scope of the present disclosure.
In some embodiments, the memory unit 120 is used for storing a plurality of signal parameters, a plurality of data and a network status detected by the detecting unit 110. In some embodiments, the network status may be, for example, a last received antenna pattern group or a transmission antenna pattern combination of the memory unit 120, but is not limited thereto, and any data that may be used to represent the location and usage of the network user is within the scope of the present disclosure. In some embodiments, the memory unit 120 may be a memory or other storage device, but is not limited thereto, and any device capable of storing information associated with the antenna apparatus is within the scope of the present disclosure.
In some embodiments, the processing unit 130 is configured to generate corresponding data according to the result detected by the detecting unit 110 and store the corresponding data into the memory unit 120. In some embodiments, the processing unit 130 is configured to group a plurality of antenna patterns corresponding to a plurality of antenna elements in the antenna unit 140 according to a plurality of antenna types corresponding to a plurality of antenna devices 150 detected by the detecting unit 110 to form a plurality of antenna pattern groups, and select at least one antenna pattern group from the plurality of antenna pattern groups to provide corresponding communication resources for different antenna devices 150. In some embodiments, the processing unit 130 calculates a plurality of signal parameter statistics corresponding to a plurality of antenna pattern combinations according to a plurality of signal parameters of the plurality of antenna pattern combinations corresponding to each of the selected at least one antenna pattern group. In some embodiments, the processing unit 130 selects a first antenna pattern combination with the largest signal parameter statistic and a last antenna pattern combination with the smallest signal parameter statistic from the plurality of antenna pattern combinations according to the plurality of signal parameter statistics. In some embodiments, the processing unit 130 sets the first antenna pattern combination or the last antenna pattern combination as the transmission antenna pattern combination according to the first data and the second data respectively corresponding to the first antenna pattern combination and the last antenna pattern combination in the data detected by the detecting unit 110, and transmits the transmission antenna pattern combination or the last antenna pattern combination to the antenna unit 140 as the antenna pattern combination used for the communication between the communication transmission apparatus 100 and the plurality of antenna apparatuses 150.
In some embodiments, the processing unit 130 may be, for example, a processor with a function of computing data, but is not limited thereto, and any unit capable of performing corresponding operations according to the result detected by the detecting unit 110 is within the scope of the present disclosure.
In some embodiments, the antenna unit 140 is configured to perform data transmission with a plurality of antenna devices 150 according to the received transmit antenna pattern combinations. In some embodiments, the antenna unit 140 may include, for example, an omni-directional antenna or a directional antenna, but is not limited thereto, and any device capable of radiating energy is within the scope of the present disclosure.
In some embodiments, the communication transmission apparatus 100 includes the memory unit 120 and the processing unit 130, but does not include the detecting unit 110 and the antenna unit 140, and the detecting unit 110 and the antenna unit 140 are included in a router (not shown). In this case, the communication transmission apparatus 100 is further coupled to a router. The communication transmission apparatus 100 is configured to receive the detection result from the router, and select an antenna pattern combination according to the detection result to transmit to the router, so as to control the antenna direction of the router. In some embodiments, the communication transmission device 100 may be, for example, a data processing device, but is not limited thereto, and any device capable of controlling the orientation of multiple antennas of a router is within the scope of the present disclosure.
Fig. 2 is a flowchart illustrating a communication transmission method 200 applying the communication transmission system of fig. 1 according to an embodiment of the present disclosure. It should be noted that the communication transmission method 200 is not limited to the communication transmission system in fig. 1. For convenience and clarity, the following communication transmission method 200 is illustrated in fig. 1 as an example.
As shown in fig. 2, step S210 is first executed to detect a plurality of antenna types corresponding to a plurality of antenna devices 150 of an external user end. In some embodiments, the detecting unit 110 may know the antenna types of the plurality of antenna devices 150 through the wireless network standard 802.11ac or the wireless network standard 802.11ax, but is not limited thereto, and other wireless network standards capable of achieving the above operations are within the scope of the present disclosure. Based on the wireless networking standards 802.11ac and 802.11ax, which both include channel sounding mechanisms, the detecting unit 110 can transmit the antenna types of the antenna devices 150 to the memory unit 120 according to channel feedback (channel feedback) provided by each antenna device 150.
Next, step S220 is executed to group the antenna devices 150 into an antenna device group according to the antenna types corresponding to the antenna devices 150. In some embodiments, the processing unit 130 may classify the antenna devices 150 into an antenna device group according to the antenna types corresponding to the antenna devices 150, and then classify the antenna devices 150 into an antenna device group according to the antenna device group, for example, classify the antenna devices 150 with a spatial stream number of 1 × 1 into an antenna device group, and then form an antenna device group with other types of antenna device groups.
In this step, referring to fig. 3A, fig. 3A is a schematic diagram illustrating a partial communication setting status of the communication transmission method 200 according to an embodiment of the disclosure. As shown in fig. 3A, the plurality of antenna devices 150 are grouped into one of an antenna device group 301, an antenna device group 302, an antenna device group 303, and an antenna device group 304 according to the antenna combinations corresponding to the plurality of antenna devices 150. In some embodiments, the antenna device group 301 comprises an antenna device group 3011, wherein the antenna device group 3011 comprises a plurality of 4 × 4 antenna devices; the antenna device group 302 may individually include an antenna device group 3021 and an antenna device group 3022, where the antenna device group 3021 includes a plurality of 3 × 3 antenna devices and the antenna device group 3022 includes a plurality of 1 × 1 antenna devices, or the antenna device group 302 may individually include an antenna device group 3023 and an antenna device group 3024, where the antenna device group 3023 includes a plurality of 2 × 2 antenna devices and the antenna device group 3024 includes a plurality of 2 × 2 antenna devices; the antenna device group 303 includes an antenna device group 3031, an antenna device group 3032 and an antenna device group 3033, wherein the antenna device group 3031 includes a plurality of 2 × 2 antenna devices, the antenna device group 3032 includes a plurality of 1 × 1 antenna devices, and the antenna device group 303 includes a plurality of 1 × 1 antenna devices; the antenna device group 304 includes an antenna device group 3041, an antenna device group 3042, an antenna device group 3043, and an antenna device group 3044, in which the antenna device group 3041, the antenna device group 3042, the antenna device group 3043, and the antenna device group 3044 respectively include a plurality of 1 × 1 antenna devices. Therefore, the processing unit 130 can group the antenna devices 150 into an antenna device group according to the antenna combination formed by the antenna types included in the antenna devices 150 detected by the detecting unit 110.
For example, when the detecting unit 110 detects that the plurality of antenna devices 150 include a plurality of 2 × 2 antenna devices and a plurality of 1 × 1 antenna devices, the processing unit 130 groups the plurality of antenna devices 150 into the antenna device group 303.
In step S220, the purpose of grouping the antenna devices 150 into an antenna device group according to the antenna types is to reduce the amount of computation and to make up for the shortage of General-purpose input/output (GPIO) number in hardware.
Next, step S230 is executed to group a plurality of antenna patterns corresponding to a plurality of antenna elements included in the antenna unit 140 according to the antenna device group in which the antenna device 150 is located, and select at least one antenna pattern group from the plurality of antenna pattern groups. In some embodiments, the processing unit 130 further groups different antenna patterns of the antenna unit 140 according to the antenna device group of the antenna device 150 to form a plurality of antenna pattern groups. For example, the antenna pattern corresponds to the number of channels of the antenna element 140, e.g., 1TR, 2TR, 3TR, 4 TR. Then, at least one antenna pattern group is selected from the plurality of antenna pattern groups corresponding to the antenna unit 140 according to the comparison results of the plurality of weight operations and the plurality of threshold values.
In this step, fig. 3A is also referred to. As shown in fig. 3A, the antenna pattern groups are grouped according to directivity, and include an antenna pattern group 311, an antenna pattern group 312, an antenna pattern group 313, an antenna pattern group 314, and an antenna pattern group 315. Antenna pattern group 311 represents that the antenna pattern of antenna unit 140 is an omni-directional antenna (omni 1), antenna pattern group 312 represents that the antenna pattern of antenna unit 140 is a unidirectional directional antenna (1-peak 1-lobe directional antenna), antenna pattern group 313 represents that the antenna pattern of antenna unit 140 is a bidirectional directional antenna (2-peak 2-lobe directional antenna), antenna pattern group 314 represents that the antenna pattern of antenna unit 140 is a three-directional antenna (3-peak 3-lobe directional antenna), and pattern group 315 represents that the antenna pattern of antenna unit 140 is a four-directional antenna (4-peak or 4-lobe directional antenna).
In some embodiments, the processing unit 130 calculates the corresponding weights and thresholds for each antenna device group, the processing unit 130 assigns the weights corresponding to the antenna patterns to each antenna device group according to the number of the antenna pattern groups, and the processing unit 130 assigns different thresholds to each antenna pattern group; in some embodiments, the summator SUM accumulates all corresponding weights of each antenna device group to obtain a calculation result, and the calculation result is compared and determined with a threshold value corresponding to different antenna pattern groups through the comparator CP, and then at least one antenna pattern group is selected from the plurality of antenna pattern groups according to the comparison result. In some embodiments, the threshold T0, the threshold T1, the threshold T2, the threshold T3, and the threshold T4 are preset to 0.5, but not limited thereto, the communication transmission system 100 may set the thresholds differently for different network requirements.
For example, when the processing unit 130 determines that the plurality of antenna devices 150 are the antenna device group 303, the weights W30, W31, W32, W33, and W34 corresponding to the antenna pattern groups are set to 1, and the remaining weights are set to 0, and the antenna pattern group 311, the antenna pattern group 312, the antenna pattern group 313, the antenna pattern group 314, and the antenna pattern group 315 are selected after being calculated by the adder SUM and the comparator CP. Through different setting of the weight and the critical value, the local communication transmission device can flexibly correspond to different use requirements, namely different antenna device groups, and a suitable antenna pattern group is selected for data transmission.
In some embodiments, the memory unit 120 stores a network status, and the processing unit 130 calculates the corresponding weights and thresholds according to the antenna device groups and the network status, accumulates all the corresponding weights by the adder SUM, compares the weights with the thresholds by the comparator CP, and determines and selects at least one antenna pattern group for data transmission. In some embodiments, the network status represents the common antenna pattern groups stored in the memory unit 120, such as the plurality of antenna pattern groups selected in step S230 of the last-time communication transmission method 200. In step S230, the purpose of presetting or dynamically constructing the common antenna pattern groups is also to reduce the amount of computation and to make up for the deficiency of the general input/output number of the hardware.
For example, when the commonly used antenna pattern groups in the memory unit 120 are the antenna pattern group 312 and the antenna pattern group 313, the processing unit 130 sets the weights W31 and W32 to 1, and sets the remaining weights to 0, and selects the antenna pattern group 312 and the antenna pattern group 313 after calculation by the adder SUM and the comparator CP.
Next, step S240 is executed to detect a plurality of signal parameters of a plurality of antenna pattern combinations corresponding to each of the at least one antenna pattern group, and calculate a signal parameter statistic thereof. In some embodiments, the signal parameter statistic may be, for example, a sum of received signal strength indicators, a mean of received signal strength indicators, a standard deviation of received signal strength indicators, a root mean square of received signal strength indicators, a variance of received signal strength indicators, a maximum received signal strength indicator, a minimum received signal strength indicator, a median of received signal strength indicators, or a mode of received signal strength indicators, but is not limited thereto, and the communication transmission system 100 may set any relevant parameter statistic that can be used to indicate signal strength according to a network status or a user's requirement within the scope of the present disclosure.
In some embodiments, the signal parameter statistics selected for use in performing the communication transmission method 200 may be determined based on the most recently selected signal parameter statistics. Briefly, the signal parameter statistics used in the communication transmission method 200 may be adjusted according to the current network state.
In this step, referring to fig. 3B, fig. 3B is a schematic diagram illustrating a partial communication setting status of the communication transmission method 200 according to an embodiment of the disclosure. In some embodiments, different antenna pattern groups may correspond to antenna pattern combinations having different signal parameter statistics. As shown in fig. 3B, the antenna pattern group 311 corresponds to an antenna pattern combination 3211, and the antenna pattern group 312 corresponds to 256 antenna pattern combinations with different signal parameter statistics (i.e., an antenna pattern combination 322p, where p is 1-256) The antenna pattern group 313 corresponds to 1296 antenna pattern combinations with different signal parameter statistics (i.e., antenna pattern combination 322m, where m is 1-1296), the antenna pattern group 314 corresponds to 256 antenna pattern combinations with different signal parameter statistics (i.e., antenna pattern combination 324n, where n is 1-256), and the antenna pattern group 315 corresponds to an antenna pattern combination 3251. It should be noted that the number of antenna pattern combinations corresponding to the antenna pattern group is determined according to the number of combinations of the plurality of antennas of the antenna unit 140 in a plurality of directions respectively. For example, in the example of FIG. 3B, the antenna unit 140 has four antennas and can be pointed in four directions, so the antenna pattern group 311 is an omni-directional antenna, corresponding to C (4,0)4The unidirectional antenna pattern group 312 corresponds to C (4,1), which is a combination of 1 antenna pattern, i.e. 4 directions of 1 antenna are not selected, and corresponds to the number of combinations of 4 antennas4The two-way antenna pattern group 313 corresponds to C (4,2) in 256 antenna pattern combinations, that is, 4 directions of 1 antenna are selected, and the number of combinations of 4 antennas is determined41296 antenna pattern combinations, that is, two are selected from 4 directions of 1 antenna, and then the combination corresponds to 4 antennas, and so on, for example, the antenna pattern group 314 corresponds to C (4,3)4The antenna pattern group 312 corresponds to C (4,4) for 256 antenna pattern combinations41 antenna pattern combination. This step is further specified for the content of the higher antenna pattern groups.
Next, step S250 is executed to select a first antenna pattern combination and a last antenna pattern combination from the plurality of antenna pattern combinations. In some embodiments, the processing unit 130 selects the first antenna pattern combination with the largest signal parameter statistic and the last antenna pattern combination with the smallest signal parameter statistic among the plurality of antenna pattern combinations according to the signal parameter statistic calculated in step S240.
In this step, fig. 3B is also referred to. As shown in fig. 3B, in the plurality of antenna field combinations, a weight is set for each antenna field combination corresponding to the first antenna field combination and the last antenna field combination, the weights of all the antenna field combinations corresponding to the first antenna field combination and the weights of all the antenna field combinations corresponding to the last antenna field combination are separately calculated and compared to determine which antenna field combination forms the first antenna field combination or the last antenna field combination, for example, the weight of the part corresponding to the antenna field combination with the largest signal parameter statistic and the weight of the part corresponding to the antenna field combination with the smallest signal parameter statistic are set to 1, the remaining weights are set to 0, and the first antenna field combination and the last antenna field combination are obtained by comparing the weights with the threshold T11 and the threshold T12. For example, if the antenna pattern combination having the largest signal parameter statistic is the antenna pattern combination 3231, and the antenna pattern combination having the smallest signal parameter statistic is the antenna pattern combination 3225, the processing unit 130 sets the weights W211 and W152 to 1, and sets the remaining weights to 0, and after the operation of the adder SUM, the processor CP compares the weights with the threshold T11 being 0.5 and the threshold T12 being 0.5, so as to obtain the first antenna pattern combination 331 as the antenna pattern combination 3231 and the last antenna pattern combination 332 as the antenna pattern combination 3225. In some embodiments, the weights and the threshold values may be set as above, but are not limited thereto, and the weights and the threshold values may be set according to the network status and the actual needs of the user.
In some embodiments, the selection method of the first antenna pattern combination and the last antenna pattern combination in step S250 may be replaced by the first antenna pattern combination and the last antenna pattern combination obtained by performing the communication transmission method 200 last time. This is because the time interval between each time the communication transmission method 200 is executed is too small (about 10 times) compared to the network status in the normal case-6). Therefore, when the network state is relatively stable, the first antenna pattern combination and the last antenna pattern combination obtained last time can be directly used as the first antenna pattern combination and the last antenna pattern combination of this time, so as to save the operation time.
Next, step S260 is executed to generate a first antenna pattern combination and a last antenna pattern combination corresponding to the uplink and a first antenna pattern combination and a last antenna pattern combination corresponding to the downlink respectively according to the first antenna pattern combination and the last antenna pattern combination. In some embodiments, the processing unit 130 determines the first antenna pattern combination and the last antenna pattern combination for uplink and downlink according to the first antenna pattern combination and the last antenna pattern combination.
In this step, referring to fig. 3C, fig. 3C is a schematic diagram illustrating a partial communication setting status of the communication transmission method 200 according to an embodiment of the disclosure. As shown in fig. 3C, the processing unit 130 copies the first antenna pattern combination 331 into an uplink first antenna pattern combination 341 and a downlink first antenna pattern combination 342, and the processing unit 130 further copies the last antenna pattern combination 332 into an uplink last antenna pattern combination 343 and a downlink last antenna pattern combination 344. In some embodiments, the first antenna pattern combination and the last antenna pattern combination corresponding to the uplink and the downlink are only copies of the first antenna pattern combination 331 and the last antenna pattern combination 332, but not limited thereto, the processing unit 130 may generate the uplink first antenna pattern combination and the downlink first antenna pattern combination different from the first antenna pattern combination and generate the uplink last antenna pattern combination and the downlink last antenna pattern combination different from the last antenna pattern combination according to the network status.
Next, step S270 is executed to set an uplink antenna pattern combination and a downlink antenna pattern combination according to the plurality of data transmission rates. In some embodiments, the detecting unit 110 detects the data transmission rates of the first uplink antenna pattern combination, the last uplink antenna pattern combination, the first downlink antenna pattern combination, the last downlink antenna pattern combination and the plurality of antenna devices 150, and the processing unit 130 selects one of the first uplink antenna pattern combination and the last uplink antenna pattern combination with a higher data transmission rate as the uplink antenna pattern combination and selects one of the first downlink antenna pattern combination and the last downlink antenna pattern combination with a higher data transmission rate as the downlink antenna pattern combination according to the obtained data transmission rates.
In this step, fig. 3C is also referred to. As shown in fig. 3C, when the data transmission rate corresponding to the uplink first antenna pattern combination 341 is greater than the data transmission rate corresponding to the uplink last antenna pattern combination 343, the weight W411 is set to 1, W421 is set to 0, and the uplink transmission antenna pattern combination 351 is determined to be the uplink first antenna pattern combination 341 through the adder SUM and through the comparison result of the comparator CP and the threshold value T21 to 0.5; when the data transmission rate corresponding to the uplink first antenna pattern combination 341 is smaller than the data transmission rate corresponding to the uplink last antenna pattern combination 343, the weight W411 is set to 0, W421 is set to 1, and the uplink transmission antenna pattern combination 351 is determined to be the uplink last antenna pattern combination 343 via the adder SUM and via the comparison result of the comparator CP and the threshold value T21 being 0.5.
As shown in fig. 3C, when the data transmission rate corresponding to the downlink first antenna pattern combination 342 is greater than the data transmission rate corresponding to the downlink last antenna pattern combination 344, the weight W412 is set to 1, W422 is set to 0, and the downlink antenna pattern combination 352 is determined to be the downlink first antenna pattern combination 342 via the adder SUM and the comparison result between the comparator CP and the threshold value T22 to 0.5; when the data rate corresponding to the first downlink antenna pattern combination 342 is smaller than the data rate corresponding to the last downlink antenna pattern combination 344, the weight W412 is set to 0, W422 is set to 1, and the downlink antenna pattern combination 352 is determined to be the last downlink antenna pattern combination 344 via the adder SUM and the comparison result between the comparator CP and the threshold T22 to 0.5.
Next, step S280 is executed, in which the communication transmission apparatus 100 performs data transmission with the plurality of antenna apparatuses 150 via the uplink transmission antenna pattern combination and the downlink transmission antenna pattern combination. In some embodiments, the processing unit 130 selects the uplink transmission antenna pattern combination and the downlink transmission antenna pattern combination and then transmits the selected combinations to the antenna unit 140. When the communications transmission apparatus 100 performs uplink transmission via the antenna unit 140 and the plurality of antenna units 150, the plurality of antennas of the antenna unit 140 are configured according to the uplink transmission antenna pattern combination; when the communications transmission apparatus 100 performs downlink transmission via the antenna unit 140 and the plurality of antenna units 150, the plurality of antennas of the antenna unit 140 are configured according to the downlink transmission antenna pattern combination.
The present disclosure provides a communication transmission method, which is suitable for selecting one antenna pattern combination for uplink transmission and selecting one antenna pattern combination for downlink transmission in a plurality of antenna pattern combinations of a router according to received signal strength indexes and data transmission rate changes in a multi-user multi-input multi-output system. In contrast to the conventional approach of selecting antenna pattern combinations based only on rssi, the present disclosure contemplates adjusting the antenna pattern combinations used to perform transmissions substantially representative of the data rate transmitted between the router and the user. The communication transmission method provided by the present disclosure can consider the received signal strength indicator and the data transmission rate at the same time, and further introduce the grouping concept, so that the transmission efficiency between the router and the user is improved.
While the present disclosure has been described with reference to various embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present disclosure, and therefore, the scope of the present disclosure should be limited only by the terms of the appended claims.
Claims (10)
1. A method for communication transmission, comprising:
grouping a plurality of antenna patterns of a communication transmission device according to antenna device groups corresponding to different antenna combinations to form a plurality of antenna pattern groups, and selecting at least one antenna pattern group from the plurality of antenna pattern groups;
selecting a first antenna pattern combination and a last antenna pattern combination from the plurality of antenna pattern combinations according to a plurality of signal parameter statistics of the plurality of antenna pattern combinations corresponding to each of the at least one selected antenna pattern group; and
setting the first antenna pattern combination or the last antenna pattern combination as a transmission antenna pattern combination for data transmission according to first data associated with the first antenna pattern combination and second data associated with the last antenna pattern combination.
2. The communication transmission method according to claim 1, wherein the step of selecting said at least one antenna pattern group comprises:
selecting the antenna pattern groups when a network state is unknown; and
when the network state is known, the at least one antenna pattern group is selected according to a comparison result of a plurality of weights corresponding to the plurality of antenna pattern groups and a threshold value.
3. The communications transmission method of claim 1, further comprising:
and switching an uplink data transmission of the communication transmission device from an uplink first antenna pattern combination to an uplink last antenna pattern combination according to the relationship between the first data and the second data, or switching a downlink data transmission of the communication transmission device from a downlink first antenna pattern combination to a downlink last antenna pattern combination.
4. The communications transmission method according to claim 3, wherein said communications transmission apparatus switches from said uplink first antenna pattern combination to said uplink last antenna pattern combination when an uplink data transmission rate is less than a last uplink data transmission rate, and switches from said downlink first antenna pattern combination to said downlink last antenna pattern combination when a downlink data transmission rate is less than a last downlink data transmission rate.
5. The communications transmission method of claim 1, wherein selecting the first antenna pattern combination and the last antenna pattern combination among the plurality of antenna pattern combinations based on the plurality of signal parameter statistics of the plurality of antenna pattern combinations further comprises:
selecting the first antenna pattern combination and the last antenna pattern combination from the plurality of antenna pattern combinations according to a plurality of received signal strength indicator statistics corresponding to each of the at least one antenna pattern group in the plurality of antenna pattern combinations;
wherein the first antenna pattern combination has a largest of the plurality of received signal strength indicator statistics and the last antenna pattern combination has a smallest of the plurality of received signal strength indicator statistics.
6. The communications transmission method of claim 1, wherein switching either the first antenna pattern combination or the last antenna pattern combination as the transmit antenna pattern combination based on the first data associated with the first antenna pattern combination and the second data associated with the last antenna pattern combination further comprises:
selecting said first antenna pattern combination as said transmit antenna pattern combination when the transmission rate of said first data of said first antenna pattern combination is higher than the transmission rate of said second data of said last antenna pattern combination; and
selecting said last antenna pattern combination as said transmission antenna pattern combination when the transmission rate of said first data of said first antenna pattern combination is lower than the transmission rate of said second data of said last antenna pattern combination.
7. A communication transmission apparatus, comprising:
the detection unit is communicated with an antenna device group and detects a plurality of signal parameters and a plurality of data corresponding to the antenna device group;
an antenna unit; and
a processing unit, coupled to the detecting unit and the antenna unit, for grouping a plurality of antenna patterns of the antenna unit according to the antenna device group to form a plurality of antenna pattern groups, and selecting at least one antenna pattern group from the plurality of antenna pattern groups, wherein the processing unit further selects a first antenna pattern combination and a last antenna pattern combination from a plurality of antenna pattern combinations corresponding to each of the selected at least one antenna pattern group according to the plurality of signal parameters, and the processing unit further sets the first antenna pattern combination or the last antenna pattern combination as a transmission antenna pattern combination according to the plurality of data and transmits the transmission antenna pattern combination to the antenna unit;
wherein the antenna units are further configured to transmit with the antenna device group according to the transmit antenna pattern combinations.
8. The communications transmission apparatus according to claim 7, wherein the processing unit further selects one or more of the plurality of antenna pattern groups based on a comparison of the network status with a threshold corresponding to a plurality of weights of the plurality of antenna pattern groups when a network status is determined.
9. The communications transmission apparatus according to claim 7, wherein the processing unit is further configured to switch an uplink data transmission for the antenna unit from an uplink first antenna pattern combination to an uplink last antenna pattern combination or switch a downlink data transmission for the antenna unit from a downlink first antenna pattern combination to a downlink last antenna pattern combination according to a relationship between a first data corresponding to the first antenna pattern combination and a second data corresponding to the last antenna pattern combination.
10. The communications transmission apparatus according to claim 9 wherein the processing unit is further configured to control the antenna units to switch from the uplink first antenna pattern combination to the uplink last antenna pattern combination when an uplink data transmission rate is less than a last uplink data transmission rate, and to control the antenna units to switch from the downlink first antenna pattern combination to the downlink last antenna pattern combination when a downlink data transmission rate is less than a last downlink data transmission rate.
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| CN1988410A (en) * | 2005-12-23 | 2007-06-27 | 北京邮电大学 | Radio transmission method for multiple self adaption antenna array |
| CN103312395A (en) * | 2012-03-15 | 2013-09-18 | 西门子公司 | Antenna selection method and wireless communication equipment in wireless communication system |
| CN103384162A (en) * | 2012-05-03 | 2013-11-06 | 启碁科技股份有限公司 | Method for configuring multiple antennas and related wireless communication device |
| CN104009277A (en) * | 2013-02-21 | 2014-08-27 | 中国移动通信集团设计院有限公司 | Antenna device and antenna array |
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| US10187133B2 (en) * | 2004-04-02 | 2019-01-22 | Rearden, Llc | System and method for power control and antenna grouping in a distributed-input-distributed-output (DIDO) network |
| US8654815B1 (en) * | 2004-04-02 | 2014-02-18 | Rearden, Llc | System and method for distributed antenna wireless communications |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1988410A (en) * | 2005-12-23 | 2007-06-27 | 北京邮电大学 | Radio transmission method for multiple self adaption antenna array |
| CN103312395A (en) * | 2012-03-15 | 2013-09-18 | 西门子公司 | Antenna selection method and wireless communication equipment in wireless communication system |
| CN103384162A (en) * | 2012-05-03 | 2013-11-06 | 启碁科技股份有限公司 | Method for configuring multiple antennas and related wireless communication device |
| CN104009277A (en) * | 2013-02-21 | 2014-08-27 | 中国移动通信集团设计院有限公司 | Antenna device and antenna array |
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