CN112672410B - Communication method, device, equipment and system - Google Patents

Communication method, device, equipment and system Download PDF

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CN112672410B
CN112672410B CN202011521809.0A CN202011521809A CN112672410B CN 112672410 B CN112672410 B CN 112672410B CN 202011521809 A CN202011521809 A CN 202011521809A CN 112672410 B CN112672410 B CN 112672410B
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power
end device
control information
far
power control
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CN112672410A (en
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何翠
黄利军
杨江
刘发宽
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Unisoc Chongqing Technology Co Ltd
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Unisoc Chongqing Technology Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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Abstract

The application discloses a communication method, a device, equipment and a system, wherein the method is applied to a room division autonomous communication system which comprises near-end equipment and far-end equipment; the method comprises the following steps: the near-end equipment sends first power control information to the far-end equipment; the first power control information includes a transmission power and a first reception power of the first power control information; the first received power is within a range of received powers supported by the near-end device; the near-end equipment receives a first signal from the far-end equipment; the transmission power of the first signal is determined by the reception power of the first power control information, the transmission power of the first power control information, and the first reception power. By indicating to the far-end device a first reception power within a reception power range supported by the near-end device, it is advantageous to have the first signal transmitted by the far-end device according to this first reception power arrive at a reception power of the near-end device within the reception power range supported by the near-end device.

Description

Communication method, device, equipment and system
Technical Field
The present application relates to the field of communications technologies, and in particular, to a communication method, apparatus, device, and system.
Background
In low floors, underground shopping malls and underground parking lots of large buildings, mobile signals are weak, blind areas or shadow areas of mobile communication are easily formed, and mobile equipment cannot be normally used. Therefore, it becomes important to improve signal coverage using room-based autonomous communication.
The room division autonomous communication system comprises a near-end device and a far-end device. In order to implement communication between a near-end device and a far-end device, in an existing scheme, the near-end device determines an Automatic Gain Control (AGC) corresponding to one far-end device according to a communication time of the far-end device, and makes an RSSI of a signal received from the far-end device within an appropriate range by using the AGC. However, as the number of remote devices increases, the overhead of the near-end device increases, which decreases the reliability of the room-based autonomous communication system.
Disclosure of Invention
Embodiments of the present application provide a communication method that, by indicating to a far-end device a first reception power within a reception power range supported by a near-end device, facilitates causing a first signal transmitted by the far-end device according to the first reception power to arrive at the near-end device at a reception power within the reception power range supported by the near-end device.
In a first aspect, an embodiment of the present application provides a communication method, where the communication method is applied to a room division autonomous communication system, where the room division autonomous communication system includes a near-end device and a far-end device; the communication method comprises the following steps:
the near-end equipment sends first power control information to the far-end equipment; the first power control information comprises the transmission power and the first receiving power of the first power control information; the first receive power is within a receive power range supported by the near-end device;
the near-end equipment receives a first signal from the far-end equipment; the transmission power of the first signal is determined by a path loss between the near-end device and the far-end device, which is determined by the reception power of the first power control information and the transmission power of the first power control information, and the first reception power.
With reference to the first aspect, in some possible embodiments, the number of the remote devices is N; the number of the first signals is also N, and one first signal is sent by one remote device; n is an integer greater than or equal to 2; the method further comprises the following steps:
if the received power of at least one first signal in the N first signals is outside the received power range supported by the near-end device, the near-end device sends second power control information to each far-end device respectively; the second power control information includes a transmission power of the second power control information and the first reception power, and the transmission power of the second power control information is greater than the transmission power of the first power control information.
With reference to the first aspect, in some possible implementations, the transmission power of the second power control information is less than or equal to a maximum value in a transmission power range corresponding to the near-end device.
With reference to the first aspect, in some possible embodiments, the method further comprises:
the near-end equipment broadcasts a notification message, and the notification message is used for instructing the far-end equipment to increase the sending power of the far-end equipment.
With reference to the first aspect, in some possible implementations, the notification message includes power adjustment information, and the notification message is specifically configured to instruct the remote device to increase the transmission power of the remote device according to the power adjustment information.
In a second aspect, an embodiment of the present application further provides a communication method, where the communication method is applied to a room-based autonomous communication system, where the room-based autonomous communication system includes a near-end device and a far-end device; the communication method comprises the following steps:
the far-end device receives first power control information from the near-end device; the first power control information comprises the transmission power and the first receiving power of the first power control information; the first receive power is within a range of receive powers supported by the near-end device;
the far-end equipment sends a first signal to the near-end equipment; the transmission power of the first signal is determined by a path loss between the near-end device and the far-end device, which is determined by the reception power of the first power control information and the transmission power of the first power control information, and the first reception power.
In combination with the second aspect, in some possible embodiments, the method further comprises:
the far-end device receives second power control information from the near-end device; the second power control information is transmitted by the near-end device if the received power of the first signal is outside a received power range supported by the near-end device; the second power control information includes a transmission power of the second power control information and the first reception power, and the transmission power of the second power control information is greater than the transmission power of the first power control information.
With reference to the second aspect, in some possible embodiments, the transmission power of the second power control information is less than or equal to a maximum value in a corresponding transmission power range of the near-end device.
With reference to the second aspect, in some possible embodiments, after the far-end device transmits the first signal to the near-end device, the method further includes:
the remote device receives a notification message; the notification message is used for instructing the far-end equipment to increase the transmission power of the far-end equipment;
and the remote equipment increases the transmission power according to the notification message.
With reference to the second aspect, in some possible embodiments, the notification message includes power adjustment information, and the notification message is specifically configured to instruct the remote device to increase the transmission power of the remote device according to the power adjustment information; the remote device increasing the transmission power according to the notification message, including:
and the remote equipment improves the transmission power according to the power adjustment information.
In a third aspect, an embodiment of the present application provides a communication apparatus, which is applied to a room division autonomous communication system, where the room division autonomous communication system includes the apparatus and a remote device; the communication device includes:
a first sending unit, configured to send first power control information to the remote device; the first power control information comprises the transmission power and the first receiving power of the first power control information; the first receive power is within a receive power range supported by the apparatus;
a first receiving unit, configured to receive a first signal from the remote device; the transmission power of the first signal is determined by a path loss between the apparatus and the remote device, which is determined by the reception power of the first power control information and the transmission power of the first power control information, and the first reception power.
With reference to the third aspect, in some possible embodiments, the number of the remote devices is N; the number of the first signals is also N, and one first signal is sent by one remote device; n is an integer greater than or equal to 2; the device further comprises:
if the received power of at least one of the N first signals is outside the received power range supported by the apparatus, the first sending unit is further configured to send second power control information to each of the remote devices, respectively; the second power control information includes a transmission power of the second power control information and the first reception power, and the transmission power of the second power control information is greater than the transmission power of the first power control information.
With reference to the third aspect, in some possible embodiments, the transmission power of the second power control information is less than or equal to a maximum value in a corresponding transmission power range of the apparatus.
With reference to the third aspect, in some possible embodiments, the apparatus further includes:
the first sending unit is further configured to broadcast a notification message, where the notification message is used to instruct the remote device to increase the sending power of the remote device.
With reference to the third aspect, in some possible embodiments, the notification message includes power adjustment information, and the notification message is specifically configured to instruct the remote device to increase the transmission power of the remote device according to the power adjustment information.
In a fourth aspect, an embodiment of the present application further provides a communication apparatus, which is applied to a room division autonomous communication system, where the room division autonomous communication system includes the near-end device and the apparatus; the communication device includes:
a second receiving unit, configured to receive first power control information from the near-end device; the first power control information comprises the transmission power and the first receiving power of the first power control information; the first receive power is within a receive power range supported by the near-end device;
a second sending unit, configured to send a first signal to the near-end device; the transmission power of the first signal is determined by a path loss between the near-end device and the apparatus, which is determined by the reception power of the first power control information and the transmission power of the first power control information, and the first reception power.
In combination with the fourth aspect, in some possible embodiments, the apparatus further comprises:
the second receiving unit is further configured to receive second power control information from the near-end device; the second power control information is transmitted by the near-end device if the received power of the first signal is outside a received power range supported by the near-end device; the second power control information includes a transmission power of the second power control information and the first reception power, and the transmission power of the second power control information is greater than the transmission power of the first power control information.
With reference to the fourth aspect, in some possible embodiments, the transmission power of the second power control information is less than or equal to the maximum value in the transmission power range corresponding to the near-end device.
With reference to the fourth aspect, in some possible embodiments, after the second sending unit is configured to send the first signal to the near-end device, the apparatus further includes:
the second receiving unit is further configured to receive a notification message; the notification message is used for instructing the device to increase the transmission power of the device;
the second sending unit is further configured to increase the sending power according to the notification message.
With reference to the fourth aspect, in some possible embodiments, the notification message includes power adjustment information, and the notification message is specifically configured to instruct the apparatus to increase the transmission power of the apparatus according to the power adjustment information; the second sending unit is configured to increase sending power according to the notification message, and includes:
the second sending unit is used for increasing the sending power according to the power adjustment information.
In a fifth aspect, an embodiment of the present application provides a near-end device, which includes a processor and a memory, where the processor is connected to the memory, where the memory is used to store program codes, and the processor is used to call the program codes to execute the communication method according to the first aspect.
In a sixth aspect, an embodiment of the present application provides a remote device, which includes a processor and a memory, where the processor is connected to the memory, where the memory is used to store program codes, and the processor is used to call the program codes to execute the communication method according to the second aspect.
In a seventh aspect, an embodiment of the present application provides a room-based autonomous communication system, where the room-based autonomous communication system includes the communication device in the third aspect and the communication device in the fourth aspect.
In an eighth aspect, an embodiment of the present application provides a computer-readable storage medium, which stores a computer program, where the computer program includes program instructions, and when the program instructions are executed by a communication apparatus, the communication apparatus executes the communication method according to the first aspect or the second aspect.
In the embodiment of the present application, the near-end device transmits the first receiving power to the far-end device, so that the receiving power of the first signal transmitted by the far-end device according to the first receiving power is within the receiving power range supported by the near-end device. The near-end device does not need to employ AGC to dynamically adjust its receiver's ability to receive signals, and can successfully receive and demodulate signals from the far-end device directly using static AGC. The overhead of the near-end equipment adopting the static AGC is small, the overhead of the near-end equipment is not changed greatly along with the increase of the number of the far-end equipment, and the reliability of the indoor autonomous communication system can be improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1a is a schematic view of a scenario in which a near-end device and a far-end device transmit signals according to respective communication opportunities according to an embodiment of the present application;
fig. 1b is a schematic view of another scenario in which a near-end device and a far-end device transmit signals according to respective communication opportunities according to an embodiment of the present application;
fig. 2 is a flowchart illustrating a communication method according to an embodiment of the present application;
fig. 3 is a schematic flow chart of another communication method provided in the embodiments of the present application;
fig. 4 is a schematic flow chart of another communication method provided in the embodiments of the present application;
FIG. 5 is a schematic diagram of a preset time period provided by an embodiment of the present application;
FIG. 6 is a schematic diagram of another preset time period summation provided by the embodiment of the present application;
FIG. 7 is a schematic diagram of another preset time period summation provided by the embodiment of the present application;
fig. 8 is a schematic structural diagram of a communication device according to an embodiment of the present application;
fig. 9 is a schematic structural diagram of another communication device provided in an embodiment of the present application;
fig. 10 is a schematic structural diagram of a proximal device according to an embodiment of the present application;
fig. 11 is a schematic structural diagram of a remote device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In low-rise, underground shopping malls and underground parking lots of large buildings, mobile signals are weak, communication blind areas are easily formed, and mobile equipment cannot be normally used. Therefore, it becomes important to improve signal coverage using the room division autonomous communication technology.
The indoor division autonomous communication system adopting the indoor division autonomous communication technology may be a fifth generation mobile communication technology (5 g) indoor division system modified based on a passive indoor division system, and the indoor division autonomous communication system includes a near-end device and a far-end device. The near-end device is close to the network side and connected with a Radio Remote Unit (RRU) of the network device; the near-end equipment is close to the user side and is connected with the mobile equipment (also called terminal equipment); the near-end device and the far-end device are connected by a cable, and the near-end device and the far-end device can communicate with each other through a global system for mobile communications (GSM), a General Packet Radio Service (GPRS), a Code Division Multiple Access (CDMA), a Wideband Code Division Multiple Access (WCDMA), a time division multiple access (TD-SCDMA), a Long Term Evolution (LTE), and a fifth generation mobile communication technology (5 g). It should be noted that the frequency point used for the near-end device and the far-end device to communicate with each other is different from the frequency point of the RRU.
In a room-based autonomous communication system, a single tone signal may be used to communicate between a near-end device and a far-end device. A single tone signal is a pure sinusoidal signal of a single frequency. In a room-based autonomous communication system, a near-end device communicates with a far-end device by: the near-end equipment adopts the AGC to ensure that the RSSI of the received signal from the far-end equipment is in a proper range, and the receiving power of the signal is in the receiving power range supported by the near-end equipment, so that the near-end equipment can successfully demodulate the signal.
Next, a room-based autonomous communication system to which the embodiment of the present application is applicable is described, where the room-based autonomous communication system may include 1 near-end device and 1 far-end device; alternatively, a room-based autonomous communication system may include 1 near-end device and a plurality of far-end devices. In a room-based autonomous communication system, the near-end device and the far-end device may communicate time-shared. Time-sharing communication refers to determining which device can transmit signals at the current time by dividing the near-end communication opportunity and the far-end communication opportunity. The near-end equipment sends signals at near-end communication time, and the far-end equipment sends signals at far-end communication time. When the indoor autonomous communication system includes 1 near-end device and 1 far-end device, a schematic view of a scenario in which the near-end device and the far-end device transmit signals according to respective communication timings may be as shown in fig. 1 a. In fig. 1a, black squares represent near-end communication opportunities and white squares represent far-end communication opportunities. As can be seen from fig. 1a, the near-end device and the far-end device both have multiple communication occasions, and the communication occasions of the near-end device and the far-end device are set at intervals. The period T1 represents an interval duration between two adjacent near-end communication occasions (i.e., a period of the near-end communication occasions), and the period T2 represents an interval duration between two adjacent far-end communication occasions (i.e., a period of the far-end communication occasions). The near-end device transmits signals at near-end communication opportunities indicated by black squares, and the far-end device transmits signals at far-end communication opportunities indicated by white squares.
The period of the near-end communication timing may be the same as or different from the period of the far-end communication timing.
The indoor autonomous communication system can further comprise 1 near-end device and N far-end devices, wherein N is an integer greater than or equal to 2. A scene diagram of the near-end device and the far-end device sending signals according to respective communication timings may be as shown in fig. 1 b. In fig. 1b, taking N =2 as an example, in fig. 1b, black squares represent near-end communication timings, white squares 1 represent communication timings of the far-end device 1 (e.g., called far-end communication timing 1), and white squares 2 represent communication timings of the far-end device 2 (e.g., called far-end communication timing 2). Similar to fig. 1a, in fig. 1b, the near-end device and the far-end device each have a plurality of communication opportunities, and the communication opportunities of the near-end device and the far-end device are set at intervals. The period T3 represents an interval duration between two adjacent near-end communication occasions (i.e., a period of the near-end communication occasion), the period T4 represents an interval duration between two adjacent far-end communication occasions 1 (i.e., a period of the far-end communication occasion 1), and the period T5 represents an interval duration between two adjacent far-end communication occasions 2 (i.e., a period of the far-end communication occasion 2). The near-end device transmits signals at near-end communication opportunities as indicated by black squares, the far-end device 1 transmits signals at far-end communication opportunities 1 as indicated by white squares 1, and the far-end device 2 transmits signals at far-end communication opportunities 2 as indicated by white squares 2.
The period of the near-end communication timing may be the same as or different from the period of the far-end communication timing. The period of the remote communication opportunity 1 and the period of the remote communication opportunity 2 may be the same or different.
It should be noted that the time durations of different near-end communication occasions (in fig. 1a, the length of the black square on the t-axis represents the time duration of the near-end communication occasion) may be the same or different; the durations of the different far-end communication occasions (in fig. 1a, the durations of the near-end communication occasions are represented by the lengths of the white squares on the t-axis) may be the same or different. The time length of the near-end communication opportunity and the time length of the far-end communication opportunity can be the same or different. Fig. 1a and fig. 1b take the same time length of each near-end communication opportunity as that of each far-end communication opportunity as an example, and do not constitute a limitation to the embodiment of the present application.
It will be appreciated that within the near-end communication session, the near-end device may transmit a signal and, correspondingly, the far-end device may receive the signal. In the far-end communication time machine, the far-end device can send signals, and correspondingly, the near-end device receives the signals.
Based on the above description, the present application provides a communication method, which may be performed by the above-mentioned near-end device. The method mainly describes a scheme that the far-end equipment controls the transmission power of the first signal according to the first power control information, and the scheme is favorable for enabling the receiving power of the first signal to be within the receiving power range supported by the near-end equipment. Referring to fig. 2, the communication method may include steps S201 to S202:
s201, the near-end equipment sends first power control information to the far-end equipment; the first power control information includes a transmission power and a first reception power of the first power control information; the first received power is within a range of received powers supported by the near-end device.
The first received power may also be referred to as a desired received power. The near-end device sends the first receiving power to the far-end device, so that the receiving power of the far-end device reaching the near-end device according to the first signal sent by the first receiving power is favorably smaller than a preset value. Wherein, the difference value between the received power of the first signal reaching the near-end equipment and the first received power is smaller than a preset value, which indicates that: the first signal arrives at the near end device with a received power that is comparable to the first received power. The preset value may be set by default by the near-end device, or indicated by the network, which is not limited in the embodiment of the present application.
The range of received power supported by the near-end device refers to: a power range between an upper detection threshold limit supported by the near-end device and a lower detection threshold limit supported by the near-end device. Since the first reception power is within the reception power range supported by the near-end device, and the reception power of the first signal reaching the near-end device is similar to the first reception power, the probability that the reception power of the first signal reaching the near-end device is within the reception power range supported by the near-end device is high. Thereby advantageously ensuring that the near-end device can successfully demodulate the first signal.
It should be noted that, in the embodiment of the present application, the near-end device transmits the first receiving power to the far-end device, so that the near-end device can successfully receive and demodulate the signal from the far-end device without using AGC to dynamically adjust the capability of its receiver to receive the signal. In other words, in the embodiments of the present application, the near-end device may employ a static AGC. Further, when the indoor autonomous communication system dynamically allocates a communication opportunity, the near-end device may also successfully receive and demodulate the signal from the far-end device directly using the static AGC. Wherein the AGC is to amplify the received power of the signal with an adjustment gain. Static AGC refers to the adjustment gain of AGC as a fixed value.
Optionally, the first power control information includes a transmission power and a first reception power of the first power control information. The transmission power of the first power control information, which is transmitted to the far-end device for the first time by the near-end device, may be set by default by the near-end device, or may be indicated by a cell (e.g., a target cell) in which the near-end device resides. For example, the near-end device may receive a system message sent by the target cell to obtain the transmission power of the first power control information from the system message. Wherein the target cell may further indicate the first received power. For example, the first received power may be carried in a system message transmitted by the target cell.
And the transmission power of the first power control information is less than or equal to the maximum value in the transmission power range corresponding to the near-end equipment. In one embodiment, if the transmission power of the first power control information is equal to the maximum value in the transmission power range corresponding to the near-end device, the near-end device transmits the communication message at the transmission power of the first power control information (i.e., the maximum value in the transmission power range corresponding to the near-end device) in the subsequent near-end communication session. The communication message may include, without limitation, a control message and/or a data message.
S202, receiving a first signal from a far-end device by a near-end device; the transmission power of the first signal is determined by a path loss between the near-end device and the far-end device, which is determined by the reception power of the first power control information and the transmission power of the first power control information, and the first reception power.
The near-end device sends the first power control information to the far-end device, and correspondingly, after receiving the first power control information, the far-end device may send a first signal to the near-end device according to the first power control information.
Wherein the transmission power of the first signal is determined by the transmission power of the first power control information, the reception power of the first power control information, and the first reception power. Specifically, the near-end device may perform a difference operation on the transmission power of the first power control information and the reception power of the first power control information to obtain a power difference (that is, a path loss between the near-end device and the far-end device), and then perform a summation operation on the path loss and the first reception power to obtain the transmission power of the first signal. The transmission power of the first signal may be calculated by the following expression:
P 1 1 ＝[(P 1 '-P 1 )+P 0 ]
wherein, P 1 1 Representing the transmission power, P, of the first signal 1 ' denotes a transmission power of the first power control information, P 1 Indicating the received power of the first power control information, P 0 Indicating the first received power.
Optionally, when the indoor autonomous communication system includes 1 near-end device and multiple far-end devices, path losses between different far-end devices and near-end devices may be the same or different, and this is not limited in this embodiment of the present application.
In one embodiment, if the received power of the first signal is within the range of the received power supported by the near-end device, the near-end device may transmit the communication message at the transmission power of the first power control information in the subsequent near-end communication session. If the received power of the first signal is outside the range of the received power supported by the near-end device, the near-end device may adjust its transmit power in subsequent near-end communication sessions. Note that, adjusting the transmission power of the near-end device refers to: and adjusting the power of the signals transmitted by the near-end equipment.
In the embodiment of the present application, the near-end device transmits the first receiving power to the far-end device, so that the receiving power of the first signal transmitted by the far-end device according to the first receiving power is within the receiving power range supported by the near-end device. The near-end device does not need to employ AGC to dynamically adjust its receiver's ability to receive signals, and can successfully receive and demodulate signals from the far-end device directly using static AGC. The overhead of the near-end equipment adopting the static AGC is small, the overhead change of the near-end equipment is not large along with the increase of the number of the far-end equipment, and the reliability of the indoor autonomous communication system can be improved.
Due to the complexity of the environment, the path loss calculated by the far-end device according to the transmission power of the first power control information and the reception power of the first power control information may be inaccurate, so that the reception power of the first signal from the far-end device received by the near-end device is outside the reception power range supported by the near-end device, and in this case, the near-end device cannot successfully demodulate the first signal transmitted by the far-end device. When the number of the remote devices is N, the reception power of the first signal transmitted by each of a part of the N remote devices may be outside the reception power range supported by the near-end device, or the reception power of the first signal transmitted by each of the N remote devices may be outside the reception power range supported by the near-end device.
In view of this, the embodiment of the present application further provides a communication method, please refer to fig. 3, the communication method includes steps S301 to S304:
s301, the near-end device sends the first power control information to the far-end device 1 and the far-end device 2, respectively.
Wherein the first power control information includes a transmission power and a first reception power of the first power control information; the first received power is within a range of received powers supported by the near-end device. The related content of the first power control information may refer to the description of the embodiment corresponding to fig. 2, and is not repeated here.
Alternatively, the near-end device may transmit the first power control information in a broadcast manner.
Optionally, the near-end device has multiple communication occasions, and the near-end device may send the first power control information to the far-end device at certain specific communication occasions. For example, in the scenario that the near-end device and the far-end device shown in fig. 1b transmit signals according to respective communication occasions, the near-end device may transmit the first power control information to the far-end device 1 at a near-end communication occasion that is adjacent to the far-end communication occasion 1, and may transmit the first power control information to the far-end device 2 at a near-end communication occasion that is adjacent to the far-end communication occasion 2.
It should be noted that, the embodiment shown in fig. 3 is described by taking N remote devices including the remote device 1 and the remote device 2 as an example, and does not limit the present application.
S302, the far-end equipment 1 sends a first signal 1 to the near-end equipment; the far-end device 2 sends a first signal 2 to the near-end device.
The transmission power of the first signal 1 is determined by the path loss between the near-end device and the far-end device 1, and the first reception power; the path loss between the near-end device and the far-end device 1 is determined by the reception power of the first power control information received by the far-end device 1 and the transmission power of the first power control information.
The transmission power of the first signal 2 is determined by the path loss between the near-end device and the far-end device 2, and the first reception power; the path loss between the near-end device and the far-end device 2 is determined by the reception power of the first power control information received by the far-end device 2 and the transmission power of the first power control information.
It should be noted that, in the embodiment of the present application, the execution sequence of the far-end device 1 sending the first signal 1 to the near-end device and the far-end device 2 sending the first signal 2 to the near-end device is not limited. Optionally, the step of sending the first signal 1 to the near-end device by the far-end device 1 may be executed first, the step of sending the first signal 2 to the near-end device by the far-end device 2 may be executed first, or the step of sending the first signal 1 to the near-end device by the far-end device 1 and the step of sending the first signal 2 to the near-end device by the far-end device 2 may be executed simultaneously.
It should be understood that the first signal of the far-end device may not be received by the near-end device, and may also be received by the near-end device. When the near-end device receives the first signal, the received power of the first signal may be outside the received power range supported by the near-end device or may be within the received power range supported by the near-end device. Illustratively, in fig. 3, a first signal 1 is received by the near-end device, and the first signal 1 is within the receiving power range supported by the near-end device. The first signal 2 may not be received by the near end device or the received power is outside the range of received powers supported by the near end device.
S303, the near-end device broadcasts a notification message, where the notification message is used to instruct the far-end device 2 to increase the transmission power of the far-end device 2.
In one embodiment, a remote device corresponds to a remote device identification. The notification message broadcast by the near-end device carries the far-end device identifier. After the far-end device receives the notification message from the near-end device, each far-end device respectively matches the respective identifier with the far-end device identifier carried in the notification message in a hit manner, and if the matching is successful, the transmission power can be increased by using the notification message. If the matching fails, the transmission power is kept unchanged.
In the example shown in fig. 3, the remote device 1 corresponds to the identity 1, and the remote device 2 corresponds to the identity 2. The notification message broadcast by the near-end device may carry the identity 2. After the remote device receives the notification message, the remote device 1 matches the identifier 2 carried in the notification message with the identifier 1 of the remote device, the matching fails, and the transmission power is kept unchanged. After the remote device receives the notification message, the remote device 2 matches the identifier 2 carried in the notification message with the identifier 2 of the remote device, and if the matching is successful, the transmission power can be increased by using the notification message.
In another embodiment, the near-end device may directly send a notification message to the target far-end device at a near-end communication opportunity corresponding to the target far-end device, where the target far-end device is a far-end device that sends the first signal that is not received by the near-end device or whose receiving power is outside a receiving power range supported by the near-end device. In the example of fig. 3. The remote device 2 is a target remote device, and the near-end device may send a notification message to the remote device 2 at a near-end communication opportunity corresponding to the remote device 2. For example, as shown in fig. 1b, if the first signal 2 transmitted by the far-end device 2 in the far-end communication opportunity 101 is not received by the near-end device, or the received power is outside the range of the received power supported by the near-end device, the near-end device may transmit a notification message to the far-end device 2 in the near-end communication opportunity 102, so that the far-end device 2 may use the notification message to raise the transmission power.
S304, the remote device 2 increases the transmission power according to the notification message.
Optionally, the notification message may include power adjustment information, and at this time, the notification message is specifically used to instruct the remote device 2 to increase the transmission power of the remote device 2 according to the power adjustment information, and send the first signal 2', where the transmission power of the first signal 2' is greater than the transmission power of the first signal 2.
In one embodiment, the power adjustment information includes a power increase value, and specifically, the transmission power of the first signal 2' can be obtained by the following expression:
P 2 1 ＝[(P 1 '-P 1 )+P 0 ]+ΔP
wherein, P 2 1 Representing the transmission power, P, of the first signal 2 1 ' denotes a transmission power of the first power control information, P 1 Indicating the received power of the first power control information, P 0 Representing a first received power, ap representing a power boost value, ap being greater than 0.
In another embodiment, the power adjustment information may further include a power increase coefficient, and specifically, the transmission power of the first signal 2' may be obtained by the following expression:
P 2 1 ＝[(P 1 '-P 1 )+P 0 ]×(1+ΔP')
where Δ P 'represents a power increase coefficient, and Δ P' is greater than 0.
In one embodiment, after the far-end device 2 receives the communication message, the transmission power of the first signal 2 may be increased according to the notification message to obtain the transmission power of the first signal 2', and if the first signal 2' may not be received by the near-end device, or the reception power of the second signal 2' may be out of the reception power range supported by the near-end device, in this case, the near-end device may continue to transmit the notification message to the far-end device 2 to instruct the far-end device 2 to continue to increase the transmission power. Until the receiving power of the signal transmitted by the far-end device 2 to the near-end device is within the receiving power range supported by the near-end device, or until the transmitting power of the first signal transmitted by the far-end device 2 to the near-end device reaches the maximum value in the transmitting power range supported by the far-end device 2.
In other words, the step of issuing the notification message by the near-end device, and increasing the transmission power of the far-end device 2 by the far-end device 2 according to the notification message, may be performed repeatedly for a plurality of times until the reception power of the first signal received by the near-end device from the far-end device 2 is within the reception power range supported by the near-end device, or until the transmission power of the first signal transmitted to the near-end device by the far-end device reaches the maximum value in the transmission power range supported by the far-end device 2. The near-end device may issue a notification message via a Transmit Power Control (TPC) command.
Optionally, in the subsequent remote communication time, the remote device 2 transmits the subsequent communication message with the transmission power adopted at the end of the iteration step.
Optionally, when the communication message carries the power adjustment information, for the remote device 2, the power adjustment information (including the power increase value or the power increase coefficient) included in the notification message received by the remote device 2 for multiple times may be the same or different. Specifically, the notification message sent by the near-end device for the first time includes power adjustment information 1, and the notification message sent by the near-end device for each time except for the first time includes power adjustment information 2, where a power increase value in the power adjustment information 1 is greater than a power increase value in the power adjustment information 2, or a power increase coefficient in the power adjustment information 1 is greater than a power increase coefficient in the power adjustment information 2. That is, the remote device 2 first increases the transmission power by a large power increase value or power increase factor, and then finely adjusts the transmission power by a small power increase value or power increase factor.
According to the embodiment of the application, when the first signal sent to the near-end device by the far-end device is not received by the near-end device or the receiving power of the first signal is out of the receiving power range supported by the near-end device, the far-end device adjusts the sending power of the first signal according to the notification message, so that the receiving power of the adjusted first signal reaching the near-end device is in the receiving power range supported by the near-end device. The near-end device does not need to employ AGC to dynamically adjust its receiver's ability to receive signals, and can successfully receive and demodulate signals from the far-end device directly using static AGC. The overhead of the near-end equipment adopting the static AGC is small, the overhead change of the near-end equipment is not large along with the increase of the number of the far-end equipment, and the reliability of the indoor autonomous communication system can be improved. In addition, the far-end device adjusts the transmission power of the first signal according to the notification message to promote that the receiving power of the first signal reaching the near-end device is within the receiving power range supported by the near-end device, so that the receiving scheme of the near-end device is simplified, and the stability of the indoor autonomous communication system can be improved.
When the number of the remote devices is N, some (or all) of the N remote devices may not receive the first power control information sent by the near-end device, thereby causing that the some (or all) of the remote devices do not send the first signal to the near-end device, or the first signal reaches the near-end device with a receiving power outside the receiving power range supported by the near-end device, in this case, the near-end device cannot successfully demodulate the signal sent by the some (or all) of the remote devices.
In view of this, an embodiment of the present application further provides a communication method, please refer to fig. 4, where the communication method includes S401 to S403:
s401, the near-end equipment respectively sends first power control information to N far-end equipment; the first power control information includes a transmission power and a first reception power of the first power control information; the first received power is within a range of received powers supported by the near-end device.
Optionally, after the near-end device sends the first power control information to the N far-end devices, the N far-end devices may all receive the first power control information from the near-end device, and send the first signal to the near-end device according to the first power control information. Where one remote device transmits one first signal, then N remote devices transmit N first signals.
S402, receiving a first signal from a far-end device by a near-end device within a preset time period; a first signal is transmitted by a remote device.
In one embodiment, the preset time period includes a near-end communication occasions and b far-end communication occasions, where a and b are integers greater than or equal to 1. Optionally, a = b. Optionally, the duration of the preset time period may be related to the number of the far-end devices, the period of the near-end communication occasion, and the period of the far-end communication occasion. For convenience of description, if it is assumed that the period of all the near-end communication occasions is equal to the period of all the far-end communication occasions and is T, the duration of the preset time period may be calculated by the following expression:
the duration of the preset time period = N (cycle of near-end communication timing + cycle of near-end communication timing) = N × 2T
Wherein, N represents the number of the far-end devices, and the period of the near-end communication opportunity are both T.
If N =2 and the periods of the near-end communication opportunity and the far-end communication opportunity are both T, the schematic diagram of the duration of the preset time period may be as shown in fig. 5.
In one embodiment, after the near-end device sends the first power control information to the N far-end devices, the N far-end devices all receive the first power control information sent by the near-end device, and send the first signal to the near-end device according to the first power control information. That is, the N remote devices respectively transmit one first message, and the N remote devices transmit N first signals in total. Optionally, all of the N first signals may be received by the near-end device, or a part of the N first signals may be received by the near-end device. In case that only a part of the N first signals are received by the near-end device (i.e. the number of the first signals is less than N), the near-end device may be triggered to send the second power control information to the N far-end devices, respectively.
In one embodiment, after the near-end device sends the first power control information to the N far-end devices, respectively, some (or all) of the N far-end devices may not receive the first power control information sent by the near-end device. In this case, the number of the first signals is also smaller than N, and the step of the near-end device sending the second power control information to the N far-end devices respectively may also be triggered.
S403, if the N first signals received by the near-end device within the preset time period do not satisfy the preset condition, the near-end device sends second power control information to the N far-end devices, respectively.
In one embodiment, the N first signals received by the near-end device within the preset time period do not satisfy the preset condition, which means that at least one of the N first signals is outside the received power range supported by the near-end device.
In a specific implementation process, a preset time period sum (which may also be referred to as a monitoring timer time length) is set in the near-end device, and one preset time period sum includes one or more preset time periods.
When the sum of a preset time period includes a preset time period, the near-end device judges whether the received first signal meets a preset condition in each preset time period, and if the first signal does not meet the preset condition (including that the receiving power of at least one first signal in the N first signals is out of the receiving power range supported by the near-end device, or the number of the received first signals is less than N), the near-end device sends second power control information in the next preset time period.
As shown in fig. 6, if N =2, 2 remote devices are included, and a sum of the predetermined time periods includes a predetermined time period. Optionally, the near-end device is in the preset time period k 1 Sending first power control information internally, sending a first signal by the remote equipment according to the first power control information, and sending the first signal in a preset time period k 1 The first signal in (b) does not satisfy the preset condition, and the near-end device will be in the next preset time period (preset time period k) 2 ) Transmitting second power control information with a transmission power greater than the first powerThe transmission power of the control information.
When a preset time period sum comprises a plurality of preset time periods, the near-end device sends first power control information in a first preset time period in the preset time period sum, judges whether the received first signal meets a preset condition in a last preset time period in the preset time period sum, and if the first signal does not meet the preset condition (the receiving power of at least one first signal in the N first signals is out of the receiving power range supported by the near-end device, or the number of the received first signals is less than N), the near-end device sends second power control information in a first preset time period in the next preset time period sum.
The preset time period sum includes 2 preset time periods, N =2, as shown in fig. 7, the preset time period sum S 1 Including a predetermined time period k 3 And a preset time period k 4 Sum of predetermined time periods S 2 Including a predetermined time period k 5 And a preset time period k 6 . The near-end equipment is in a preset time period k 3 Sending first power control information to 2 remote devices inwards, and keeping the first power control information at a preset time period k 4 Whether the first signal meets the condition is judged, and if not, the first signal is judged within a preset time period k 5 And sending the second power control information to the 2 remote devices.
The near-end device may specifically obtain the transmission power of the second power control information according to the transmission power of the first power control information and the power adjustment information 3, combine the transmission power of the second power control information with the first reception power to obtain the second power control information, and respectively send the second power control information to the N far-end devices. Wherein the transmission power of the second power control information is greater than the transmission power of the first power control information. Optionally, the transmission power of the second power control information is less than or equal to a maximum value in a transmission power range corresponding to the near-end device.
The related content of the second power control information may refer to the description of the first power control information in the corresponding embodiment of fig. 2, and the difference is that the transmission power of the second power control information in the second power control information is greater than the transmission power of the first power control information in the first power control information.
Wherein the transmission power of the second power control information is determined by the transmission power of the first power control information and the power adjustment information 3. The power adjustment information 3 is used to indicate how to adjust the transmission power of the near-end device. Optionally, if the power adjustment information 3 is a power adjustment value, the transmit power of the second power control information may be calculated by the following expression:
Figure BDA0002849242770000171
wherein, P 1 c Represents a transmission power of the first power control information,
Figure BDA0002849242770000173
a transmission power, Δ P, indicating second power control information c Power adjustment value, Δ P, indicating power adjustment information 3 c Greater than 0.
Optionally, if the power adjustment information 3 is a power adjustment coefficient, the transmit power of the second power control information may be calculated by the following expression:
Figure BDA0002849242770000174
wherein,
Figure BDA0002849242770000175
a power adjustment coefficient representing the power adjustment information 3,
Figure BDA0002849242770000176
is greater than 0.
Further, after the N remote devices receive the second power control information from the near-end device, the second signal may be sent according to the second power control information, and if the second signal in the preset time period still does not meet the preset condition, the near-end device may repeatedly perform the step of increasing the sending power of the power control information. Until the near-end device receives a signal from the far-end device and meets the condition, or until the power control information transmitted by the near-end device reaches the maximum value in the range of the transmission power supported by the near-end device.
It should be noted that, within a preset time period sum, the near-end device may send a notification message to the far-end device to instruct the far-end device to increase its transmission power. For example, in FIG. 7, if the near-end device is in the preset time period k 3 If the received power of the first signal from the far-end device 1 received in the receiving device is out of the range of the received power supported by the near-end device, the near-end device may send a notification message to the far-end device 1; accordingly, the far-end device 1, after receiving the notification message, may transmit a first signal 'to the near-end device according to the notification message, where the transmission power of the first signal' is higher than that of the first signal. In other words, the near-end device adjusting its transmission power and the far-end device adjusting the transmission power may be performed synchronously. The content of the adjustment of the transmission power by the remote device can be referred to the description in the corresponding embodiment of fig. 3, and is not described herein again.
It should be noted that, if the N first signals satisfy the preset condition, in the subsequent near-end communication time, the near-end device sends the communication message with the adjusted sending power of the power control information.
In the embodiment of the present application, when the number of the remote devices is N, part (or all) of the N remote devices may not receive the first power control information sent by the near-end device, so that part (or all) of the remote devices may not receive the first signal that is not sent to the near-end device, or when the reception power of the first signal reaching the near-end device is outside the reception power range supported by the near-end device, the near-end device increases the transmission power of the first power control information, which is beneficial to enable the reception power of the adjusted first signal reaching the near-end device to be within the reception power range supported by the near-end device. The near-end device does not need to employ AGC to dynamically adjust its receiver's ability to receive signals, and can directly utilize static AGC to successfully receive and demodulate signals from the far-end device. The overhead of the near-end equipment adopting the static AGC is small, the overhead change of the near-end equipment is not large along with the increase of the number of the far-end equipment, and the reliability of the indoor autonomous communication system can be improved.
Based on the description of the foregoing embodiments, an embodiment of the present application further provides a communication apparatus, which is applied to a room-based autonomous communication system, where the room-based autonomous communication system includes the apparatus and a remote device; fig. 8 is a schematic structural diagram of a communication device according to an embodiment of the present application, and as shown in fig. 8, the device described in this embodiment may include a first sending unit 801 and a first receiving unit 802.
A first sending unit 801, configured to send first power control information to a remote device; the first power control information comprises the transmission power and the first receiving power of the first power control information; the first receive power is within a receive power range supported by the apparatus;
a first receiving unit 802, configured to receive a first signal from the remote device; the transmission power of the first signal is determined by a path loss between the apparatus and the remote device, which is determined by the reception power of the first power control information and the transmission power of the first power control information, and the first reception power.
Optionally, the number of the remote devices is N; the number of the first signals is also N, and one first signal is sent by one remote device; n is an integer greater than or equal to 2; the device further comprises:
if the received power of at least one of the N first signals is outside the received power range supported by the apparatus, the first sending unit 801 is further configured to send second power control information to each of the remote devices respectively; the second power control information includes a transmission power of the second power control information and the first reception power, and the transmission power of the second power control information is greater than the transmission power of the first power control information.
Optionally, the transmission power of the second power control information is less than or equal to a maximum value in a transmission power range corresponding to the apparatus.
Optionally, the apparatus further comprises:
the first sending unit 801 is further configured to broadcast a notification message, where the notification message is used to instruct the remote device to increase the sending power of the remote device.
Optionally, the notification message includes power adjustment information, and the notification message is specifically configured to instruct the remote device to increase the transmission power of the remote device according to the power adjustment information.
In the embodiment of the present application, the near-end device advantageously enables the far-end device to transmit the first signal according to the first receiving power by transmitting the first receiving power to the far-end device, so that the receiving power of the first signal transmitted by the far-end device reaches the range of the receiving power supported by the near-end device.
It is understood that the functions of each unit of this embodiment may be specifically implemented according to the method in fig. 2, fig. 3, or fig. 4 in the foregoing embodiment, and the specific implementation process may refer to the related description of the method embodiment in fig. 2, fig. 3, or fig. 4, which is not described herein again.
The embodiment of the application also provides a communication device, which is applied to a room division autonomous communication system, wherein the room division autonomous communication system comprises the near-end equipment and the device; fig. 9 is a schematic structural diagram of another communication device provided in this embodiment, and as shown in fig. 9, the device described in this embodiment may include a second receiving unit 901 and a second sending unit 902.
A second receiving unit 901, configured to receive the first power control information from the near-end device; the first power control information comprises the transmission power and the first receiving power of the first power control information; the first receive power is within a range of receive powers supported by the near-end device;
a second sending unit 902, configured to send a first signal to the near-end device; the transmission power of the first signal is determined by a path loss between the near-end device and the apparatus, which is determined by the reception power of the first power control information and the transmission power of the first power control information, and the first reception power.
Optionally, the apparatus further comprises:
the second receiving unit 901 is further configured to receive second power control information from the near-end device; the second power control information is transmitted by the near-end device if the received power of the first signal is outside a received power range supported by the near-end device; the second power control information includes a transmission power of the second power control information and the first reception power, and the transmission power of the second power control information is greater than the transmission power of the first power control information.
Optionally, the transmission power of the second power control information is less than or equal to a maximum value in a transmission power range corresponding to the near-end device.
Optionally, after the second sending unit 902 is configured to send the first signal to the near-end device, the apparatus further includes:
the second receiving unit 901 is further configured to receive a notification message; the notification message is used for instructing the device to increase the transmission power of the device;
the second sending unit 902 is further configured to increase the sending power according to the notification message.
Optionally, the notification message includes power adjustment information, and the notification message is specifically configured to instruct the apparatus to increase the transmission power of the apparatus according to the power adjustment information; the second sending unit 902 is configured to increase sending power according to the notification message, and includes:
the second sending unit 902 is further configured to increase sending power according to the power adjustment information.
In the embodiment of the present application, the far-end device transmits the first signal according to the first receiving power transmitted by the near-end device, which is beneficial to make the receiving power of the first signal reaching the near-end device be in the receiving power range supported by the near-end device.
It is understood that the functions of each unit of this embodiment may be specifically implemented according to the method in fig. 2, fig. 3, or fig. 4 in the foregoing embodiment, and the specific implementation process may refer to the related description of the method embodiment in fig. 2, fig. 3, or fig. 4, which is not described herein again.
Referring to fig. 10, fig. 10 is a schematic structural diagram of a proximal device according to an embodiment of the present disclosure. The proximal device in the present embodiment as shown in fig. 10 may include: a processor 1001 and a memory 1002. The processor 1001 and the memory 1002 are connected by a bus 1003. The memory 1002 is used to store a computer program comprising program instructions, and the processor 1001 is used to execute the program instructions stored by the memory 1002.
In the embodiment of the present application, the processor 1001 executes the executable program code in the memory 1002 to perform the following operations:
transmitting first power control information to the remote device; the first power control information comprises the transmission power and the first receiving power of the first power control information; the first receive power is within a range of receive powers supported by the near-end device;
receiving a first signal from the remote device; the transmission power of the first signal is determined by a path loss between the near-end device and the far-end device, which is determined by the reception power of the first power control information and the transmission power of the first power control information, and the first reception power.
Optionally, the number of the remote devices is N; the number of the first signals is also N, and one first signal is sent by one remote device; n is an integer greater than or equal to 2; the processor 1001 is further configured to:
if the receiving power of at least one first signal in the N first signals is out of the receiving power range supported by the near-end equipment, respectively sending second power control information to each far-end equipment; the second power control information includes a transmission power of the second power control information and the first reception power, and the transmission power of the second power control information is greater than the transmission power of the first power control information.
Optionally, the transmission power of the second power control information is less than or equal to a maximum value in a transmission power range corresponding to the near-end device.
Optionally, the processor 1001 is further configured to:
broadcasting a notification message, wherein the notification message is used for instructing the remote device to increase the transmission power of the remote device.
Optionally, the notification message includes power adjustment information, and the notification message is specifically used to instruct the remote device to increase the transmission power of the remote device according to the power adjustment information.
It should be understood that, in the embodiment of the present Application, the Processor 1001 may be a Central Processing Unit (CPU), and the Processor 1001 may also be other general-purpose processors, digital Signal Processors (DSPs), application Specific Integrated Circuits (ASICs), field-Programmable Gate arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 1002 may include both read-only memory and random access memory, and provides instructions and data to the processor 1001. A portion of the memory 1002 may also include a non-volatile random access memory, may store the first received power, and so on.
In a specific implementation, the processor 1001 and the memory 1002 described in this embodiment of the present application may execute an implementation manner described in a flow of a communication method provided in fig. 2, fig. 3, or fig. 4 in this embodiment of the present application, and may also execute an implementation manner described in a communication apparatus provided in fig. 8 in this embodiment of the present application, which is not described herein again.
In this embodiment, the processor 1001 sends first power control information to the remote device; the first power control information comprises the transmission power and the first receiving power of the first power control information; the first receive power is within a receive power range supported by the near-end device; receiving a first signal from the remote device; the transmission power of the first signal is determined by a path loss between the near-end device and the far-end device, which is determined by the reception power of the first power control information and the transmission power of the first power control information, and the first reception power. By indicating to the far-end device a first reception power that is within a reception power range supported by the near-end device, it is advantageous to have the first signal transmitted by the far-end device according to this first reception power arrive at a reception power of the near-end device that is within the reception power range supported by the near-end device.
Referring to fig. 11, fig. 11 is a schematic structural diagram of a remote device according to an embodiment of the present application. The remote device in the present embodiment as shown in fig. 11 may include: a processor 1101, and a memory 1102. The processor 1101 and the memory 1102 are connected by a bus 1103. The memory 1102 is used to store a computer program comprising program instructions and the processor 1101 is used to execute the program instructions stored by the memory 1102.
In this embodiment, the processor 1101 executes the executable program code in the memory 1102 to perform the following operations:
receiving first power control information from the near-end device; the first power control information comprises the transmission power and the first receiving power of the first power control information; the first receive power is within a range of receive powers supported by the near-end device;
transmitting a first signal to the near-end device; the transmission power of the first signal is determined by a path loss between the near-end device and the far-end device, which is determined by the reception power of the first power control information and the transmission power of the first power control information, and the first reception power.
Optionally, the processor 1101 is further configured to:
receiving second power control information from the near-end device; the second power control information is transmitted by the near-end device if the received power of the first signal is outside a received power range supported by the near-end device; the second power control information includes a transmission power of the second power control information and the first reception power, and the transmission power of the second power control information is greater than the transmission power of the first power control information.
Optionally, the transmission power of the second power control information is less than or equal to a maximum value in a transmission power range corresponding to the near-end device.
Optionally, after the processor 1101 sends the first signal to the near-end device, the processor 1101 is further configured to:
receiving a notification message; the notification message is used for instructing the far-end equipment to increase the transmission power of the far-end equipment;
and increasing the transmission power according to the notification message.
Optionally, the notification message includes power adjustment information, where the notification message is specifically used to instruct the remote device to increase the transmission power of the remote device according to the power adjustment information; the processor 1101 increases the transmission power according to the notification message, including:
and increasing the transmission power according to the power adjustment information.
It should be understood that in the embodiments of the present Application, the Processor 1101 may be a Central Processing Unit (CPU), and the Processor 1101 may also be other general purpose processors, digital Signal Processors (DSPs), application Specific Integrated Circuits (ASICs), field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 1102 may include both read-only memory and random access memory, and provides instructions and data to the processor 1101. A portion of the memory 1102 may also include a non-volatile random access memory, may store the first received power, and so on.
In specific implementation, the processor 1101 and the memory 1102 described in this embodiment of the present application may execute an implementation manner described in a flow of a communication method provided in fig. 2, fig. 3, or fig. 4 of this embodiment, and may also execute an implementation manner described in a communication apparatus provided in fig. 9 of this embodiment of the present application, which is not described herein again.
In the present embodiment, the processor 1101 receives first power control information from the near-end device; the first power control information comprises the transmission power and the first receiving power of the first power control information; the first receive power is within a range of receive powers supported by the near-end device; and sending a first signal to the near-end device; the transmission power of the first signal is determined by a path loss between the near-end device and the far-end device, which is determined by the reception power of the first power control information and the transmission power of the first power control information, and the first reception power. The far-end device transmits the first signal according to the first receiving power which is indicated by the near-end device to be within the receiving power range supported by the near-end device, and the receiving power of the first signal reaching the near-end device is favorable to be within the receiving power range supported by the near-end device.
The embodiment of the present application further provides a room-based autonomous communication system, which is characterized in that the room-based autonomous communication system includes the communication device shown in fig. 8 and the communication device shown in fig. 9.
The embodiment of the application also provides a computer readable storage medium. The computer readable storage medium stores a computer program comprising program instructions that, when executed by a processor, perform the steps performed in fig. 2, fig. 3 or fig. 4 of the above-described communication method embodiments.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
While the foregoing is directed to embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.

Claims (16)

1. A communication method applied to a room-based autonomous communication system, the room-based autonomous communication system including a near-end device and N far-end devices, where N is an integer greater than or equal to 2, the method comprising:
the near-end equipment sends first power control information to each far-end equipment respectively; the first power control information comprises the transmission power and the first receiving power of the first power control information; the first receive power is within a receive power range supported by the near-end device;
the near-end equipment respectively receives a first signal from each far-end equipment; the transmission power of each first signal is determined by the path loss between the near-end device and each far-end device, and the first receiving power, wherein the path loss is determined by the receiving power of the first power control information received by each far-end device and the transmission power of the first power control information; the power difference value between the received power of each first signal and the first received power is smaller than a preset value; the received power of each first signal is within a range of received powers supported by the near-end device.
2. The method of claim 1, wherein the method further comprises:
if the received power of at least one first signal in the N first signals is outside the received power range supported by the near-end device, the near-end device sends second power control information to each far-end device; the second power control information includes a transmission power of the second power control information and the first reception power, and the transmission power of the second power control information is greater than the transmission power of the first power control information.
3. The method of claim 2, wherein the transmission power of the second power control information is less than or equal to a maximum value in a transmission power range corresponding to the near-end device.
4. The method of any one of claims 1-3, further comprising:
the near-end equipment broadcasts a notification message, and the notification message is used for instructing the far-end equipment to increase the sending power of the far-end equipment.
5. The method of claim 4, wherein the notification message includes power adjustment information, and wherein the notification message is specifically configured to instruct the remote device to increase the transmit power of the remote device according to the power adjustment information.
6. A communication method, wherein the method is applied to a room-based autonomous communication system, wherein the room-based autonomous communication system comprises a near-end device and a far-end device; the method comprises the following steps:
the far-end device receives first power control information from the near-end device; the first power control information comprises the transmission power and the first receiving power of the first power control information; the first receive power is within a receive power range supported by the near-end device;
the far-end device sends a first signal to the near-end device; a transmission power of the first signal is determined by a path loss between the near-end device and the far-end device, which is determined by a reception power of the first power control information and a transmission power of the first power control information, and the first reception power; a power difference value between the received power of the first signal and the first received power is smaller than a preset value; the received power of the first signal is within a received power range supported by the near-end device.
7. The method of claim 6, wherein the method further comprises:
the far-end device receives second power control information from the near-end device; the second power control information is transmitted by the near-end device if the received power of the first signal is outside a received power range supported by the near-end device; the second power control information includes a transmission power of the second power control information and the first reception power, and the transmission power of the second power control information is greater than the transmission power of the first power control information.
8. The method of claim 7, wherein the transmission power of the second power control information is less than or equal to a maximum value in a transmission power range corresponding to the near-end device.
9. The method of any one of claims 6-8, wherein after the far-end device transmits the first signal to the near-end device, the method further comprises:
the remote device receives a notification message; the notification message is used for instructing the far-end equipment to increase the transmission power of the far-end equipment;
and the remote equipment increases the transmission power according to the notification message.
10. The method of claim 9, wherein the notification message includes power adjustment information, and wherein the notification message is specifically configured to instruct the remote device to increase the transmit power of the remote device according to the power adjustment information; the remote device increasing the transmission power according to the notification message, including:
and the remote equipment improves the transmission power according to the power adjustment information.
11. A communication apparatus, applied to a room-based autonomous communication system, the room-based autonomous communication system comprising the apparatus and N remote devices; n is an integer greater than or equal to 2, the apparatus comprising:
a first sending unit, configured to send first power control information to each remote device; the first power control information comprises the transmission power and the first receiving power of the first power control information; the first receive power is within a receive power range supported by the apparatus;
a first receiving unit, configured to receive a first signal from each remote device, respectively; the transmission power of each first signal is determined by the path loss between the apparatus and each remote device, which is determined by the reception power of the first power control information received by each remote device and the transmission power of the first power control information, and the first reception power; the power difference value between the received power of each first signal and the first received power is smaller than a preset value; the received power of each first signal is within a received power range supported by the apparatus.
12. A communication apparatus, applied to a room-based autonomous communication system, the room-based autonomous communication system comprising the apparatus and a near-end device; the device comprises:
a second receiving unit, configured to receive first power control information from the near-end device; the first power control information comprises the transmission power and the first receiving power of the first power control information; the first receive power is within a range of receive powers supported by the near-end device;
a second sending unit, configured to send a first signal to the near-end device; a transmission power of the first signal is determined by a path loss between the near-end device and the apparatus, which is determined by a reception power of the first power control information and a transmission power of the first power control information, and the first reception power; a power difference value between the received power of the first signal and the first received power is smaller than a preset value; the received power of the first signal is within a received power range supported by the near-end device.
13. A near-end device comprising a processor and a memory, the processor and the memory being connected, wherein the memory is configured to store program code and the processor is configured to invoke the program code to execute the communication method according to any one of claims 1 to 5.
14. A remote device comprising a processor and a memory, the processor and the memory coupled, wherein the memory is configured to store program code and the processor is configured to invoke the program code to perform the communication method of any of claims 6-10.
15. A room autonomous communication system comprising a communication apparatus according to claim 11 and a communication apparatus according to claim 12.
16. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program comprising program instructions that, when executed by a communication apparatus, cause the communication apparatus to perform the method of any of claims 1-5 or 6-10.
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