CN112019426A - Information interaction system - Google Patents
Information interaction system Download PDFInfo
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- CN112019426A CN112019426A CN202010865391.9A CN202010865391A CN112019426A CN 112019426 A CN112019426 A CN 112019426A CN 202010865391 A CN202010865391 A CN 202010865391A CN 112019426 A CN112019426 A CN 112019426A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/66—Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/155—Ground-based stations
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/54—Store-and-forward switching systems
- H04L12/56—Packet switching systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/54—Store-and-forward switching systems
- H04L12/56—Packet switching systems
- H04L12/5601—Transfer mode dependent, e.g. ATM
- H04L2012/5672—Multiplexing, e.g. coding, scrambling
- H04L2012/5675—Timeslot assignment, e.g. TDMA
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- Computer Networks & Wireless Communication (AREA)
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Abstract
The embodiment of the invention discloses an information interaction system, which comprises: the gateway is used for directly interacting with the terminal through a gateway transmission channel, and sending a broadcast message to the repeater through the gateway transmission channel when the terminal is determined to exceed a preset distance, wherein the gateway transmission channel is formed by a first unit time slot; the repeater is used for realizing indirect interaction between the terminal and the gateway through a repeater transmission channel; the repeater transmission channel is composed of a second unit time slot, the width of the second unit time slot is smaller than that of the first unit time slot, and the transmission rate of the second service data is greater than that of the first service data. The gateway adopts direct connection or a repeater to indirectly carry out information interaction according to the distance between the gateway and the terminal, the unit time slot of a repeater transmission channel is smaller than that of the gateway transmission channel, and the rate of the terminal for feeding back service data through the repeater transmission channel is greater than that of the gateway transmission channel, so that the throughput of a system network cannot be influenced when different connection modes are adopted.
Description
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to an information interaction system.
Background
At present, in the technical field of communication, a gateway can carry out information interaction with a terminal when the gateway is in communication with the terminal, and the gateway can directly carry out information interaction when the gateway is closer to the terminal; when the gateway is far away from the terminal, it is usually necessary to perform indirect connection via a repeater to expand the communication range.
However, when the repeaters are used for indirect connection, the repeaters usually use the same time slots as the transmission channels of the gateways, so that the throughput of the system network is significantly reduced after service data passes through the repeaters, thereby affecting information interaction between the gateways and the terminals and reducing the communication experience of users.
Disclosure of Invention
The embodiment of the invention provides an information interaction system. The gateway and the terminal are directly connected and the repeater is indirectly connected, so that the change of the throughput of the system network is not influenced.
In a first aspect, an embodiment of the present invention provides an information interaction system, including: the gateway is indirectly connected with the terminal through the repeater, or the gateway is directly connected with the terminal;
the gateway is used for selecting a gateway transmission channel in a preset resource area, sending a broadcast message to the terminal through the gateway transmission channel when the terminal is determined to be in a preset distance, receiving first service data sent by the terminal, and sending the broadcast message to the repeater through the gateway transmission channel when the terminal is determined to be beyond the preset distance, wherein the gateway transmission channel is formed by a first unit time slot;
the repeater is used for selecting a repeater transmission channel in a preset resource area when the broadcast message is determined to be received, sending the broadcast message to the terminal through the repeater transmission channel and sending second service data sent by the terminal to the gateway;
the repeater transmission channel is composed of a second unit time slot, the width of the second unit time slot is smaller than that of the first unit time slot, and the transmission rate of the second service data is greater than that of the first service data.
According to the technical scheme of the embodiment of the invention, the gateway adopts direct connection or a repeater to indirectly carry out information interaction according to the distance between the gateway and the terminal, the unit time slot of the repeater transmission channel is smaller than that of the gateway transmission channel, and the rate of the terminal for feeding back service data through the repeater transmission channel is greater than that of the gateway transmission channel, so that the throughput of a system network cannot be influenced when different connection modes are adopted, the information interaction between the gateway and the terminal is improved, and the communication experience of a user is improved.
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, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of an information interaction system according to an embodiment of the present invention;
FIG. 2 is a diagram illustrating a default resource region provided in accordance with an embodiment of the present invention;
fig. 3 is a schematic frame structure diagram of a gateway and a repeater according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a gateway transmission channel provided in an embodiment of the present invention;
fig. 5 is a schematic diagram of a transmission channel of a repeater according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
Fig. 1 is a schematic structural diagram of an information interaction system according to an embodiment of the present invention, which is applicable to a situation where a gateway performs information interaction with a terminal.
Optionally, an information interaction system. The method comprises the following steps: the gateway is indirectly connected with the terminal through the repeater, or the gateway is directly connected with the terminal;
the gateway is used for selecting a gateway transmission channel in a preset resource area, sending a broadcast message to the terminal through the gateway transmission channel when the terminal is determined to be in a preset distance, receiving first service data sent by the terminal, and sending the broadcast message to the repeater through the gateway transmission channel when the terminal is determined to be beyond the preset distance, wherein the gateway transmission channel is formed by a first unit time slot. And the repeater is used for selecting a repeater transmission channel in the preset resource area when the broadcast message is determined to be received, sending the broadcast message to the terminal through the repeater transmission channel and sending the second service data sent by the terminal to the gateway. The repeater transmission channel is composed of a second unit time slot, the width of the second unit time slot is smaller than that of the first unit time slot, and the transmission rate of the second service data is greater than that of the first service data.
Specifically, in the process of sending a broadcast message to a terminal and receiving service data fed back by the terminal, the gateway in this embodiment may use different connection manners according to a distance from the terminal, for example, a preset distance is set to be 10 meters, a direct connection manner is used when the distance from the gateway to the terminal is less than 10 meters, and an indirect connection manner is performed based on a relay when the distance from the gateway to the terminal exceeds 10 meters.
Optionally, the preset resource region includes a frequency domain formed by frequency points and a time domain formed by time slots.
As shown in fig. 2, a schematic diagram of a preset resource region is shown, where a frequency domain in the preset resource region includes 10 frequency points, which are: freq [0], freq [1], freq [2], freq [3], freq [4], freq [5], freq [6], freq [7], freq [8], freq [9], the time domain in the preset resource region includes 6 standard timeslots S0, S1, S2, S3, S4, and S5 for each frame, respectively. Since the channel is determined by both the time domain and the frequency domain, the gateway and the repeater respectively select the gateway transmission channel and the repeater transmission channel in the preset resource region. Of course, in the present embodiment, the description is given only by taking as an example that the frequency domain includes 10 frequency points and each frame in the time domain includes 6 standard time slots, and the scope of the preset resource region is not limited, and it is within the scope of the present application as long as the gateway or the repeater can select a corresponding channel.
Optionally, the gateway transmission channel includes a gateway downlink channel and a gateway uplink channel; and the gateway is used for sending the broadcast message to the terminal through a gateway downlink channel when the terminal is determined to be in the preset distance, receiving the first service data sent by the terminal through a gateway uplink channel, and sending the broadcast message to the repeater through the gateway downlink channel when the terminal is determined to be beyond the preset distance.
Optionally, the relay transmission channel includes: a repeater downlink channel, a repeater uplink channel and a repeater forward uplink channel; and the repeater is used for sending the broadcast message to the terminal through a repeater downlink channel, receiving second service data sent by the terminal through a repeater uplink channel, and sending the second service data to the gateway through a repeater forwarding uplink channel.
Optionally, the width of the second unit time slot is half of the width of the first unit time slot, and the transmission rate of the second service data is twice the transmission rate of the first service data.
Optionally, the gateway uplink channel is formed by a first unit time slot, and the repeater uplink channel and the relay forwarding uplink channel are formed by a second unit time slot.
Fig. 3 is a schematic diagram of a frame structure of a gateway and a repeater, where a gateway uplink channel is composed of first unit timeslots, for example, S2, S3, S4, and S5, which are standard timeslot lengths in a preset resource time domain. The uplink channel of the repeater and the uplink channel of the repeater are formed by second unit time slots, such as S2-f, S2-S, S3-f, S3-S, S4-f, S4-S, S5-f and S5-S, which are half of the length of the standard time slot in the preset resource time domain, and are equivalent to the standard time slot being split. Therefore, the width of the second unit slot in the present embodiment is half of the width of the first unit slot, and since the widths of the second unit slots of the repeater uplink channel and the repeater relay uplink channel are reduced by half with respect to the standard slot when the repeater is connected to each other, the transmission rate of the traffic data transmitted by the corresponding terminal is doubled so as not to affect the reduction of the system network throughput when the repeater is added. For example, when the terminal is determined to be directly connected to the gateway, if the transmission rate of the first service data sent by the terminal is 10MB/s, and when the terminal is determined to be connected to the gateway through the relay, the transmission rate of the second service data sent by the terminal is 20 MB/s.
Optionally, the gateway is configured to obtain an unoccupied first frequency point in a frequency domain by scanning, select a first time slot in a time domain under the first frequency point, and use a resource formed by the first frequency point and the first time slot as a gateway downlink channel; and excluding the first time slot and the second time slot from the time domain under the first frequency point, and taking the resource formed by the remaining time slots and the first frequency point as a gateway uplink channel, wherein the position of the first time slot is before the second time slot.
Specifically, as shown in fig. 4, a schematic diagram of a gateway transmission channel is shown, where DCH denotes a gateway downlink channel, UCH denotes a gateway uplink channel, and for clarity of description, fig. 4 mainly marks a time slot relationship in a time domain, but does not mark a frequency domain, and it can be understood that DCH in a first row and UCH in a second row in fig. 4 are located at the same frequency point. After the gateway is turned on, scanning a preset resource region shown in fig. 2, specifically scanning frequency points freq [0] -freq [9] in a frequency domain, and selecting an unoccupied frequency point freq [ x ], where x is a sequence number of the frequency point and may be any unoccupied frequency point sequence number in 0 to 9, and for example, a value of x may be 1, so that freq [1] is used as a first frequency point, a first time slot S0 is selected in a time domain under the first frequency point, and a resource DCH (freq [1], S0) formed by the first frequency point and the first time slot is used as a gateway downlink channel. Specifically, a first time slot S0 and a second time slot S1 are excluded from a time domain under a first frequency point freq [1], and resources UCH [4] { (freq [1], S2), (freq [1], S3), (freq [1], S4), (freq [1], and S5) } formed by the remaining time slots S2, S3, S4, S5 and the first frequency point freq [1] are used as gateway uplink channels. Of course, in the present embodiment, freq [1] is merely used as an example for the first frequency point, and the value of the first frequency point is not limited in the present embodiment, and any frequency point that is not occupied is within the scope of the present application
Optionally, the repeater is configured to obtain an unoccupied second frequency point in the frequency domain by scanning, select a second time slot in the time domain under the second frequency point, and use a resource formed by the second frequency point and the second time slot as a downlink channel of the repeater; and excluding the first time slot and the second time slot in the time domain under the second frequency point, dividing each remaining time slot into a first division time slot and a second division time slot, and taking the resource formed by the first division time slot and the second frequency point contained in the remaining time slots as the uplink channel of the repeater, wherein the first division time slot and the second division time slot are respectively formed by a second unit time slot, and the position of the first division time slot is before the second division time slot.
Specifically, as shown in fig. 5, a schematic diagram of a transmission channel of a relay is shown, where RDCH represents a downlink channel of the relay, RUCH represents an uplink channel of the relay, and UCH-R represents a relay forwarding uplink channel, and for clarity of description, the relationship of time slots in a time domain is mainly marked in fig. 5, but a frequency domain is not marked, it can be understood that the RDCH in the first row and the RUCH in the second row in fig. 4 are located under the same frequency point, and the UCH-R in the third row is located under the same frequency point as the DCH in the first row in fig. 4. After the repeater is turned on, the repeater may also scan a preset resource region shown in fig. 2, specifically scan frequency points freq [0] -freq [9] in a frequency domain, and when it is determined that a broadcast message sent by a gateway is received, the repeater may periodically switch to a gateway downlink channel DCH to receive the broadcast message, and keep time synchronization with the gateway, where a type of the broadcast message may specifically be a beacon message, and a type of the broadcast message is not limited in this embodiment. And the repeater scans the frequency points freq [0] -freq [9] in the frequency domain again, selects an unoccupied frequency point freq [ y ], wherein y is the number of the frequency point, and can be any unoccupied frequency point number from 0 to 9, for example, the value of y can be 2, so freq [2] is taken as the second frequency point, the second time slot S1 is selected in the time domain under the second frequency point, and the resource RDCH formed by the second frequency point and the second time slot is taken as (freq [2], S1) as the downlink channel of the repeater. Selecting a downlink channel of the repeater and simultaneously selecting an uplink channel of the repeater, specifically excluding a first time slot S0 and a second time slot S1 from a time domain under a second frequency point freq [2], equally dividing each remaining time slot into a first slicing time slot and a second slicing time slot, for example, the standard slots S2, S3, S4, S5 in FIG. 3 are respectively averagely sliced, S2-f, S3-f, S4-f and S5-f are first sliced slots obtained after slicing, S2-S, S3-S, S4-S and S5-S are second sliced slots obtained after slicing, and the first and second sliced slots are respectively composed of second unit slots, the second unit time slot width is half of the standard time slot width, and for each divided standard time slot, the position of the first division time slot obtained after division is before the second division time slot. Therefore, the first slot containing the remaining slots S2-f, S3-f, S4-f and S5-f, and the resource RUCH [4] { (freq [2], S2-f), (freq [2], S3-f), (freq [2], S4-f), (freq [2], S5-f) } formed by the second frequency bin freq [2] are used as the uplink channel of the repeater. Of course, in the present embodiment, freq [2] is merely used as an example for the second frequency point, and the value of the second frequency point is not limited in the present embodiment, and any frequency point that is not occupied is within the scope of the present application.
Optionally, the repeater is further configured to obtain a first frequency point occupied by a gateway downlink channel in a frequency domain through scanning; excluding a first time slot and a second time slot from a time domain under a first frequency point, dividing each remaining time slot into a first division time slot and a second division time slot, and using a resource formed by the second division time slot and the first frequency point contained in the remaining time slots as a relay forwarding uplink channel, wherein the first division time slot and the second division time slot are respectively formed by a second unit time slot, and the position of the first division time slot is before the second division time slot.
Specifically, the repeater also scans and acquires a first frequency point freq [1] occupied by a gateway downlink channel in a frequency domain, that is, under the condition that the gateway is determined to be connected with the terminal through the repeater, the frequency point corresponding to the gateway downlink channel for receiving the broadcast message is determined, then a first time slot S0 and a second time slot S1 are excluded from the time domain under the first frequency point freq [1], each remaining time slot is divided into a first slicing time slot and a second slicing time slot, for example, the standard time slots S2, S3, S4, S5 in fig. 3 are respectively subjected to average slicing, S2-f, S3-f, S4-f, and S5-f are respectively first slicing time slots obtained after slicing, S2-S, S3-S, S4-S, and S5-S are respectively second slicing time slots obtained after slicing, and the first slicing time slot and the second time slot are respectively composed of a second unit, the second unit time slot width is half of the standard time slot width, and for each divided standard time slot, the position of the first division time slot obtained after division is before the second division time slot. Therefore, second slotted time slots S2-S, S3-S, S4-S and S5-S contained in the rest time slots and resources RUCH-R [4] { (freq [1], S2-S), (freq [1], S3-S), (freq [1], S4-S), (freq [1], S5-S) } formed by the first frequency point freq [1] are used as relays to forward uplink channels.
Optionally, the terminal is further configured to switch to a silence state after the service data is sent, where the silence state indicates that the terminal does not send and receive the service data.
Specifically, after the terminal in this embodiment is powered on, the terminal scans the frequency points freq [0] -freq [9] in the frequency domain, and if it is determined that the broadcast message directly sent by the gateway is received at the first frequency point freq [1], the gateway downlink channel DCH is (freq [1], S0) and the gateway uplink channel UCH [4] { (freq [1], S2), (freq [1], S3), (freq [1], S4), (freq [1], S5) } are stored; if it is determined that the broadcast message transmitted by the repeater is received at the second frequency point freq [2], the repeater downlink channel RDCH is (freq [2], S1) and the repeater uplink channel RUCH [4] { (freq [2], S2-f), (freq [2], S3-f), (freq [2], S4-f), (freq [2], S5-f) }. When the terminal has service data to send, if the terminal directly receives the broadcast message of the gateway through the gateway downlink channel DCH, the terminal directly sends the service data to the gateway through the gateway uplink channel UCH [4 ]. If the broadcast message of the repeater is received through the repeater downlink channel RDCH, the service data is sent to the repeater through the repeater uplink channel RUCH [4], so that the repeater sends the service data to the gateway through the repeater forwarding uplink channel RUCH-R [4 ]. And the terminal will switch to the silent state after the service data is sent, so as not to send and receive the service data.
According to the technical scheme of the embodiment of the invention, the gateway adopts direct connection or a repeater to indirectly carry out information interaction according to the distance between the gateway and the terminal, the unit time slot of the repeater transmission channel is smaller than that of the gateway transmission channel, and the rate of the terminal for feeding back service data through the repeater transmission channel is greater than that of the gateway transmission channel, so that the throughput of a system network cannot be influenced when different connection modes are adopted, the information interaction between the gateway and the terminal is improved, and the communication experience of a user is improved.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. An information interaction system, comprising: the gateway is indirectly connected with the terminal through the repeater, or the gateway is directly connected with the terminal;
the gateway is used for selecting a gateway transmission channel in a preset resource region, sending a broadcast message to the terminal through the gateway transmission channel when the terminal is determined to be in a preset distance, receiving first service data sent by the terminal, and sending the broadcast message to the repeater through the gateway transmission channel when the terminal is determined to be beyond the preset distance, wherein the gateway transmission channel is formed by a first unit time slot;
the repeater is used for selecting a repeater transmission channel in the preset resource area when the broadcast message is determined to be received, sending the broadcast message to the terminal through the repeater transmission channel, and sending second service data sent by the terminal to the gateway;
the repeater transmission channel is formed by a second unit time slot, the width of the second unit time slot is smaller than that of the first unit time slot, and the transmission rate of the second service data is greater than that of the first service data.
2. The information interactive system as claimed in claim 1, wherein the width of the second unit slot is half of the width of the first unit slot, and the transmission rate of the second traffic data is twice the transmission rate of the first traffic data.
3. The information interaction system of claim 1, wherein the gateway transmission channel comprises a gateway downlink channel and a gateway uplink channel;
the gateway is configured to send the broadcast message to the terminal through the gateway downlink channel when it is determined that the terminal is within a preset distance, receive first service data sent by the terminal through the gateway uplink channel, and send the broadcast message to the relay through the gateway downlink channel when it is determined that the terminal exceeds the preset distance.
4. The information interaction system of claim 3, wherein the repeater transmission channel comprises: a repeater downlink channel, a repeater uplink channel and a repeater forward uplink channel;
the repeater is configured to send the broadcast message to the terminal through the repeater downlink channel, receive second service data sent by the terminal through the repeater uplink channel, and send the second service data to the gateway through the repeater forward uplink channel.
5. The information interaction system of claim 4, wherein the gateway uplink channel is formed of the first unit slot, and wherein the repeater uplink channel and the relay forwarding uplink channel are formed of the second unit slot.
6. The information interaction system as claimed in claim 5, wherein the predetermined resource region includes a frequency domain consisting of frequency points and a time domain consisting of time slots.
7. The information interaction system of claim 6, wherein the gateway is configured to obtain an unoccupied first frequency point in the frequency domain by scanning, select a first time slot in a time domain under the first frequency point, and use a resource formed by the first frequency point and the first time slot as the gateway downlink channel;
and excluding the first time slot and the second time slot in the time domain under the first frequency point, and taking resources formed by the remaining time slots and the first frequency point as the gateway uplink channel, wherein the position of the first time slot is before the second time slot.
8. The information interaction system of claim 6, wherein the repeater is configured to obtain an unoccupied second frequency point in the frequency domain by scanning, select a second time slot in a time domain under the second frequency point, and use a resource formed by the second frequency point and the second time slot as a downlink channel of the repeater;
excluding the first time slot and the second time slot in the time domain under the second frequency point, dividing each remaining time slot into a first division time slot and a second division time slot, and using the resource formed by the first division time slot and the second frequency point in the remaining time slots as the uplink channel of the repeater, wherein the first division time slot and the second division time slot are respectively formed by the second unit time slot, and the position of the first division time slot is before the second division time slot.
9. The information interaction system of claim 7, wherein the repeater is further configured to obtain the first frequency point occupied by the gateway downlink channel in the frequency domain by scanning;
excluding a first time slot and a second time slot in the time domain under the first frequency point, dividing each remaining time slot into a first division time slot and a second division time slot, and using resources formed by the second division time slot and the first frequency point included in the remaining time slots as the relay forwarding uplink channel, wherein the first division time slot and the second division time slot are respectively formed by the second unit time slot, and the position of the first division time slot is before the second division time slot.
10. The system of claim 1, wherein the terminal is further configured to switch to a mute state after the service data is sent, wherein the mute state indicates that the terminal does not send and receive service data.
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| 李洁琼: ""中继网络资源分配算法"", 《中国优秀博硕士学位论文全文数据库》 * |
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| Publication number | Publication date |
|---|---|
| CN112019426B (en) | 2022-09-20 |
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