CN114726925B - Wireless communication device with memory sharing mechanism and memory sharing method thereof - Google Patents
Wireless communication device with memory sharing mechanism and memory sharing method thereof Download PDFInfo
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- CN114726925B CN114726925B CN202011519915.5A CN202011519915A CN114726925B CN 114726925 B CN114726925 B CN 114726925B CN 202011519915 A CN202011519915 A CN 202011519915A CN 114726925 B CN114726925 B CN 114726925B
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- 238000004891 communication Methods 0.000 title claims abstract description 129
- 238000000034 method Methods 0.000 title claims description 16
- 238000012545 processing Methods 0.000 claims abstract description 61
- 238000001514 detection method Methods 0.000 claims abstract description 6
- 239000000523 sample Substances 0.000 claims description 7
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 239000011159 matrix material Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 239000000969 carrier Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/04—Protocols for data compression, e.g. ROHC
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
- H04B7/0452—Multi-user MIMO systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
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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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- Computer Networks & Wireless Communication (AREA)
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- Quality & Reliability (AREA)
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- Electromagnetism (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
A wireless communications apparatus with a memory sharing mechanism, comprising: communication circuitry, memory circuitry, and processing circuitry. The processing circuit performs the following steps: bringing the communication circuit and the remote wireless communication device into connection for channel detection and communication; causing the communication circuit to receive compressed channel state information generated by the remote wireless communication device; storing the compressed channel state information in a memory circuit; generating original channel state information according to the state of the wireless channel; when the residual capacity of the memory circuit is insufficient, the communication circuit is made to reduce the channel detection number of the remote wireless communication device, and the corresponding stored compressed channel state information is removed from the memory circuit; and storing the raw channel state information in a memory circuit.
Description
Technical Field
The present invention relates to memory sharing technology, and more particularly, to a wireless communication device with a memory sharing mechanism and a memory sharing method thereof.
Background
In a wireless communication technology, such as WiFi, a wireless communication device may estimate the frequency response of orthogonal subcarriers (orthogonal sub-carriers) in a system by measuring a preamble signal sent by a transmitting end, which is called channel state information (CHANNEL STATE information). Each subcarrier has an estimated channel state information, typically represented by a plurality of subcarriers. In many communication systems, a station (station) device estimates a channel by using a sounding packet transmitted by an access point device, and performs matrix decomposition and compression on channel information to generate compressed Channel State Information (CSI) for transmission. The access point device can judge the condition of the wireless channel between the access point device and the station device according to the condition, so that the transmission efficiency is improved.
In recent years, raw channel state information (raw CSI) is often applied to judge channel response variations caused by, for example, changes in indoor environments. However, the amount of data of the original channel state information is significantly larger than that of the compressed channel state information because it is not compressed. How to store the compressed channel state information and the original channel state information in a more flexible and efficient manner is an important issue in design.
Disclosure of Invention
In view of the foregoing, it is an objective of the present invention to provide a wireless communication device with a memory sharing mechanism and a memory sharing method thereof, so as to improve the prior art.
The present invention includes a wireless communication device having a memory sharing mechanism, comprising: communication circuitry, memory circuitry, and processing circuitry. The processing circuitry is configured to perform the memory sharing method. The memory sharing method comprises the following steps: connecting the communication circuit with a plurality of remote wireless communication devices to perform channel sounding (channel sounding) and communication respectively through wireless channels; causing a communication circuit to receive a plurality of compressed channel state information (compressed CHANNEL STATE information) generated by a remote wireless communication device according to a state of a wireless channel; storing the compressed channel state information in a memory circuit; generating original channel state information (RAW CHANNEL STATE information; raw CSI) according to the state of the wireless channel; when the remaining capacity of the memory circuit is insufficient to store the original channel state information, causing the communication circuit to reduce the number of channel probes with the remote wireless communication device and removing the corresponding stored compressed channel state information from the memory circuit; and storing the raw channel state information in a memory circuit.
The invention further includes a memory sharing method applied to a wireless communication device, comprising: connecting, by the processing circuitry, the communication circuitry to a plurality of remote wireless communication devices for channel sounding and communication, respectively, over the wireless channel; causing, by the processing circuitry, the communication circuitry to receive a plurality of compressed channel state information generated by the remote wireless communication device in accordance with a state of the wireless channel; storing, by the processing circuit, the compressed channel state information in the memory circuit; generating, by the processing circuit, original channel state information according to a state of the wireless channel; when the remaining capacity of the memory circuit is insufficient to store the original channel state information, causing, by the processing circuit, the communication circuit to reduce the number of channel probes with the remote wireless communication device and remove the corresponding stored compressed channel state information from the memory circuit; and storing, by the processing circuit, the raw channel state information in the memory circuit.
The features, implementation and effects of the present invention will be described in detail below with reference to the following preferred embodiments of the present invention.
Drawings
FIG. 1 is a schematic diagram of a wireless network system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a memory circuit according to an embodiment of the invention; and
FIG. 3 is a flow chart of a memory sharing method according to an embodiment of the invention.
Detailed Description
An objective of the present invention is to provide a wireless communication device with a memory sharing mechanism and a memory sharing method thereof, which can share compressed channel state information and original channel state information in a more flexible and efficient manner for storing in a single memory circuit.
Please refer to fig. 1. Fig. 1 shows a schematic diagram of a wireless network system 100 according to an embodiment of the invention.
The wireless network system 100 includes a wireless communication device 110 and a plurality of remote wireless communication devices 120. In one embodiment, the wireless communication device 110 is an Access Point (AP) device. The remote wireless communication devices 120 are station devices, respectively. The wireless communication device 110 is coupled to the remote wireless communication device 120 for channel sounding and communication.
The wireless communication apparatus 110 includes: communication circuit 130, memory circuit 140, and processing circuit 150.
The communication circuit 130 may be any circuit configured to communicate with the remote wireless communication device 120 via a wireless communication protocol, such as, but not limited to, multi-user multi-input/multi-output (MU-MIMO) and/or beamforming (transmit beamforming; txBF) techniques. In one embodiment, the number of remote wireless communication devices 120 is n. In fig. 1, RW 1～RWn is designated for each remote wireless communication device 120.
The memory circuit 140 may be any storage device configured to store data, such as, but not limited to, random access memory (random access memory; RAM), read Only Memory (ROM), or a hard disk. It should be noted that the memory circuit 140 may include only a single memory device or a plurality of memory devices to store different types of data in different embodiments.
The processing circuit 150 is electrically coupled to the communication circuit 130 and the memory circuit 140. In one embodiment, the processing circuitry 150 may be configured to execute computer-executable instructions 155. The computer-executable instructions 155 may be stored in the memory circuit 140 or other memory included in the wireless communication device 110 for execution upon access by the processing circuit 150. The computer-executable instructions 155 include, for example, but are not limited to, firmware/drivers of hardware modules such as the communication circuit 130 and the memory circuit 140 and related instructions to access signals or data of the communication circuit 130 and the memory circuit 140 for performing the functions of the wireless communication device 110. In another embodiment, the processing circuit 150 may be implemented in hardware circuitry, such as by an application-specific integrated circuit (ASIC).
The operation of wireless communication device 110 will be described in more detail below.
In one embodiment, the processing circuit 150 connects the communication circuit 130 to the remote wireless communication device 120 for communication over the wireless channels WC 1～WCn, respectively. Wherein each remote wireless communication device 120 denoted as RW 1～RWn corresponds to one of the wireless channels WC 1～WCn.
The processing circuit 150 causes the communication circuit 130 to receive, via a channel sounding protocol, compressed channel state information CSI 1～CSIn generated by the remote wireless communication device 120 in accordance with the state of the wireless channel WC 1～WCn. Each remote wireless communication device 120, labeled RW 1～RWn, generates one of the compressed channel state information CSI 1～CSIn.
In one embodiment, the processing circuit 150 transmits the driving packet (not shown) to the remote wireless communication device 120 through the communication circuit 130, and then the remote wireless communication device 120 generates the driving packet according to the status of the wireless channel WC 1～WCn. In one embodiment, the remote wireless communication device 120 may generate channel state information in a matrix form according to the state of the wireless channel WC 1～WCn, then perform singular value decomposition (singular value decomposition; SVD) on the matrix to obtain a V matrix, and compress the V matrix into compressed channel state information CSI 1～CSIn.
In such a case, the remote wireless communication device 120 obtains compressed channel state information CSI 1～CSIn for the downlink (downlink) with respect to the wireless communication device 110.
In one embodiment, the processing circuit 150 may periodically transmit a driving packet to the remote wireless communication device 120, so that the remote wireless communication device 120 periodically generates the compressed channel state information CSI 1～CSIn.
Since the compressed channel state information CSI 1～CSIn can be used by the processing circuitry 150 to determine the quality of communication with the remote wireless communication device 120 and communicate accordingly, the processing circuitry 150 stores the compressed channel state information CSI 1～CSIn in the memory circuitry 140 for access when needed.
Please refer to fig. 2. FIG. 2 shows a schematic diagram of a memory circuit 140 according to an embodiment of the invention.
In one embodiment, the memory circuit 140 includes a read/write address controller 200, a multiplexer 210, and a plurality of memory blocks 220.
In one embodiment, the read/write address controller 200 is electrically coupled to the processing circuit 150 to receive instructions (not shown) from the processing circuit 150. The processing circuit 150 may control the read/write address controller 200 to access the memory block 220 according to the address by sending an instruction including the address.
The multiplexer 210 is configured to be electrically coupled to the communication circuit 130 and the processing circuit 150, so as to selectively transfer data from the communication circuit 130 and the processing circuit 150 to the memory block 220 according to the address.
In one embodiment, the memory blocks 220 may be divided into a plurality of memory levels, wherein each memory block included in the N-th memory level is formed by a group of memory blocks included in the N-1 th memory level.
Taking the memory circuit 140 shown in FIG. 2 as an example, the memory block 220 includes four memory levels L1-L4. The memory blocks 220 are labeled separately to describe the structure of the memory levels L1 to L4.
The memory hierarchy L1 includes 6 memory blocks L11 to L16. For clarity of illustration and ease of illustration, only the structure of the memory block L11 is shown in detail in fig. 2.
In the memory hierarchy L2, the memory block L11 is formed by two memory blocks L21-L22. In the memory hierarchy L3, the memory block L21 is formed by two memory blocks L31 and L32, and the memory block L22 is formed by two memory blocks L33 and L34. In the memory hierarchy L4, each of the memory blocks L31L 34 is formed of two groups of the memory blocks L41L 48.
It should be noted that when a memory block at a higher memory level is used to store data, the memory block including the memory block at the lower memory level cannot be used any more to store data.
In one embodiment, the addresses of memory blocks in memory circuit 140 are each identified by a code comprising a plurality of bits, with memory blocks in higher memory levels corresponding to higher bits and/or higher code values and memory blocks in lower memory levels corresponding to lower bits and/or lower code values.
Taking the memory circuit 140 shown in fig. 2 as an example, each memory block is labeled with a 7-bit code. For example, for memory blocks L41-L48, the codes are 000_0001-000_1000, respectively. For the memory blocks L31-L34, the codes are 000_1001-000_1100, respectively. The codes of the memory blocks L21 to L22 are 000_1101 to 000_1110, respectively. Thus, the lower memory level is marked with the lower bits and/or lower encoded values. The higher memory levels are indicated by the higher bits and/or higher encoded values.
In one embodiment, the highest memory level L1 may be marked with only the higher bits. The codes of the memory blocks L11-L16 are denoted by 000_0000-101_0000, respectively.
The processing circuit 150 is configured to access the memory circuit 140 according to the encoding of the memory block. In an embodiment, the compressed channel state information CSI 1～CSIn has data amounts respectively, and the sizes of the data amounts may be different according to the number of antennas of the corresponding remote wireless communication device 120 and the size of the frequency band. Thus, processing circuit 150 may select a memory block corresponding to the amount of data of each compressed channel state information CSI 1～CSIn to store each compressed channel state information CSI 1～CSIn. By such a mechanism, the processing circuit 150 may make more flexible and efficient use of the memory circuit 140.
In one embodiment, the compressed channel state information CSI 1～CSIn has a smaller data size, so the processing circuit 150 may select a memory block with a lower memory level, such as one of the memory blocks L41-L48 in the memory level L4 or one of the memory blocks L31-L34 in the memory level L3, to store the compressed channel state information CSI 1～CSIn.
In addition, the processing circuit 150 itself may generate the raw channel state information RCSI according to the state of the wireless channel WC 1～WCn.
Since the raw channel state information RCSI may be used by the processing circuit 150 for object displacement detection corresponding to the surrounding environment, the processing circuit 150 stores the raw channel state information RCSI in the memory circuit 140 for access when needed.
In an embodiment, the original channel state information RCSI has a data volume. The processing circuit 150 may select a memory block corresponding to the amount of data of the original channel state information RCSI to store the original channel state information RCSI.
However, the amount of data of the original channel state information RCSI is larger than the amount of data of each compressed channel state information CSI 1～CSIn, so the processing circuit 150 needs to select a memory block located in a higher memory hierarchy, such as, but not limited to, one of the memory blocks L21-L22 in the memory hierarchy L2 or one of the memory blocks L11-L16 in the memory hierarchy L1, to store the original channel state information RCSI.
In practical applications, the more remote wireless communication devices 120 (RW 1～RWn) the communication circuit 130 is connected to, the more compressed channel state information CSI 1～CSIn needs to be stored, and the more memory blocks of the memory circuit 140 are needed. Therefore, before storing the original channel state information RCSI with a large data amount, the processing circuit 150 can determine whether the remaining capacity of the memory circuit 140 is sufficient to store the original channel state information RCSI.
When the remaining capacity of the memory circuit 140 is insufficient to store the original channel state information RCSI, the processing circuit 150 may cause the communication circuit 130 to reduce the number of channel probes with the remote wireless communication device 120 (i.e., even if the number n of remote wireless communication devices 120 is reduced) and remove the corresponding stored compressed channel state information from the memory circuit 140 to empty the memory block. After the capacity of the emptied memory block is sufficient to store the raw channel state information RCSI, the processing circuit 150 further stores the raw channel state information RCSI in the memory circuit 140.
In one embodiment, when the processing circuit 150 no longer needs the original channel state information RCSI, the stored original channel state information RCSI may be removed from the memory circuit 140 and the number of channel probes of the remote wireless communication device 120 recovered, continuing to store the corresponding compressed channel state information CSI 1～CSIn.
In one embodiment, in long-term use, addresses corresponding to memory blocks having memory contents in the memory circuit 140 may be discontinuous. That is, in the memory blocks of consecutive addresses, part has the memory content, and part does not have the memory content. In such a case, the processing circuit 150 may reorganize the memory blocks such that the memory contents are stored in memory blocks having consecutive addresses.
Therefore, the wireless communication device 110 of the present invention can enable the memory circuit to store the compressed channel state information, and can achieve the purpose of storing the original channel state information by adjusting the channel detection number of the remote wireless communication device when the original channel state information with a larger data volume cannot be stored. The compressed channel state information as well as the raw channel state information may be shared for storage in a single memory circuit in a more flexible and efficient manner.
Please refer to fig. 3. FIG. 3 is a flow chart of a memory sharing method 300 according to an embodiment of the invention.
In addition to the foregoing, the present invention further discloses a memory sharing method 300, which is applied to, for example, but not limited to, the wireless communication device 110 of fig. 1. One embodiment of a memory sharing method 300 is shown in FIG. 3, comprising the steps of:
In step S310: the communication circuit 130 is coupled to the remote wireless communication device 120 by the processing circuit 150 for channel sounding and communication over the wireless channel WC 1～WCn, respectively.
In step S320: the communication circuit 130 is caused by the processing circuit 150 to receive compressed channel state information CSI 1～CSIn generated by the remote wireless communication device 120 in accordance with the state of the wireless channel WC 1～WCn.
In step S330: compressed channel state information CSI 1～CSIn is stored in memory circuit 140 by processing circuit 150.
In step S340: the raw channel state information RCSI is generated by the processing circuit 150 based on the state of the radio channel WC 1～WCn.
In step S350: it is determined by the processing circuit 150 whether the remaining capacity of the memory circuit 140 is sufficient to store the original channel state information RCSI.
In step S360: when the remaining capacity of the memory circuit 140 is insufficient to store the original channel state information RCSI, the communication circuit 130 is caused by the processing circuit 150 to reduce the number of channel probes with the remote wireless communication device 120 and to remove the corresponding stored compressed channel state information CSI 1～CSIn from the memory circuit 140.
In step S370: when the processing circuit 150 determines in step S350 that the remaining capacity of the memory circuit 140 is sufficient to store the original channel state information RCSI, or when the processing circuit 150 clears the memory circuit 140 of sufficient space in step S360, the processing circuit 150 stores the original channel state information RCSI in the memory circuit 140.
It should be noted that the above embodiment is only an example. In other embodiments, modifications may be made by one of ordinary skill in the art without departing from the spirit of the invention.
For example, wireless communication device 110 in fig. 1 may be implemented as a station device in addition to an access point device. Similarly, the remote wireless communication apparatuses 120 are implemented as access point apparatuses, respectively, in addition to the station apparatuses, respectively. Further, the structures of the memory circuit 140 and the memory block 220 shown in fig. 2 are only examples. In other embodiments, the memory circuit 140 and the memory block 220 may be implemented according to other structures, which are not limited to the embodiment of fig. 2.
In summary, the wireless communication device with the memory sharing mechanism and the memory sharing method thereof of the present invention can enable the wireless communication device to share the compressed channel state information and the original channel state information for storage in a single memory circuit in a more flexible and efficient manner.
Although the embodiments of the present disclosure have been described above, these embodiments are not limited thereto, and those skilled in the art can apply the changes to the technical features of the present disclosure according to the explicit or implicit disclosure, and all such changes may be made within the scope of protection sought herein, in other words, the scope of protection of the present disclosure shall be defined by the claims of the present disclosure.
[ Symbolic description ]
100: Wireless network system
110: Wireless communication device
120: Remote wireless communication device
130: Communication circuit
140: Memory circuit
150: Processing circuit
155: Computer-executable instructions
200: Read-write address controller
210: Multiplexer
220: Memory block
300: Memory sharing method
S310 to S370: step (a)
CSI 1-CSIn: compressing channel state information
L1 to L4: memory hierarchy
L11 to L16: memory block
L21 to L22: memory block
L31 to L34: memory block
L41 to L48: memory block
RCSI: original channel state information
RW 1-RWn: remote wireless communication device
WC 1-WCn: wireless channel
Claims (10)
1. A wireless communications apparatus with a memory sharing mechanism, comprising:
A communication circuit;
a memory circuit; and
Processing circuitry configured to perform the steps of:
Connecting the communication circuit with a plurality of remote wireless communication devices to perform channel detection and communication through wireless channels respectively;
Causing the communication circuit to receive a plurality of compressed channel state information generated by the plurality of remote wireless communication devices according to the state of the wireless channel;
storing the plurality of compressed channel state information in the memory circuit;
generating original channel state information according to the state of the wireless channel;
When the remaining capacity of the memory circuit is insufficient to store the original channel state information, causing the communication circuit to reduce the number of channel probes with the plurality of remote wireless communication devices and removing the corresponding stored plurality of compressed channel state information from the memory circuit; and
The raw channel state information is stored in the memory circuit.
2. The wireless communication device of claim 1, wherein the memory circuit comprises a plurality of memory blocks divided into a plurality of memory levels, wherein each of the plurality of memory blocks included in an nth memory level is formed by the plurality of memory block groups included in an N-1 th memory level.
3. The wireless communication device of claim 2, wherein the original channel state information and each of the plurality of compressed channel state information have a data size, and the data size of the original channel state information is greater than the data size of each of the plurality of compressed channel state information, the processing circuit further performs the steps of:
the plurality of memory blocks corresponding to the original channel state information and the data amount of each of the plurality of compressed channel state information are selected to store the original channel state information and each of the plurality of compressed channel state information.
4. The wireless communication device of claim 2, wherein a plurality of addresses of the plurality of memory blocks are respectively indicated by codes comprising a plurality of bits, the plurality of memory blocks in the higher plurality of memory levels corresponding to the plurality of bits and/or higher code values, the plurality of memory blocks in the lower plurality of memory levels corresponding to the plurality of bits and/or lower code values, the processing circuit configured to access the memory circuit according to the codes.
5. The wireless communication device of claim 2, wherein the processing circuit further performs the steps of:
when a plurality of addresses corresponding to the plurality of memory blocks respectively having the memory contents in the memory circuit are discontinuous, the plurality of memory blocks are reorganized so that the memory contents are stored in the plurality of memory blocks having the continuous plurality of addresses.
6. The wireless communication device of claim 1, wherein the wireless communication device and the plurality of remote wireless communication devices are access point devices or station devices, respectively.
7. The wireless communication device of claim 1 wherein the raw channel state information is used to perform object displacement detection corresponding to the surrounding environment.
8. The wireless communication device of claim 1 wherein the plurality of compressed channel state information is used to determine the quality of communication with the plurality of remote wireless communication devices.
9. The wireless communication device of claim 1 wherein the plurality of compressed channel state information is generated by the processing circuitry according to the state of the wireless channel after transmitting a driving packet to the plurality of remote wireless communication devices via the communication circuitry.
10. A memory sharing method is applied to a wireless communication device, and comprises the following steps:
Connecting, by the processing circuitry, the communication circuitry to a plurality of remote wireless communication devices for channel sounding and communication, respectively, over the wireless channel;
causing, by the processing circuitry, the communication circuitry to receive a plurality of compressed channel state information generated by the plurality of remote wireless communication devices according to the state of the wireless channel;
storing, by the processing circuitry, the plurality of compressed channel state information in a memory circuit;
generating, by the processing circuit, original channel state information based on a state of the wireless channel;
When the remaining capacity of the memory circuit is insufficient to store the original channel state information, causing the communication circuit to reduce the number of channel probes with the plurality of remote wireless communication devices by the processing circuit and removing the corresponding stored plurality of compressed channel state information from the memory circuit; and
The original channel state information is stored in the memory circuit by the processing circuit.
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