CN115088376A - Channel access method and device and storage medium - Google Patents

Channel access method and device and storage medium Download PDF

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Publication number
CN115088376A
CN115088376A CN202180000248.6A CN202180000248A CN115088376A CN 115088376 A CN115088376 A CN 115088376A CN 202180000248 A CN202180000248 A CN 202180000248A CN 115088376 A CN115088376 A CN 115088376A
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China
Prior art keywords
channel interference
channel
interference value
access
value
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CN202180000248.6A
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Chinese (zh)
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付婷
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Beijing Xiaomi Mobile Software Co Ltd
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Beijing Xiaomi Mobile Software Co Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The present disclosure provides a channel access method, a device and a storage medium, wherein the channel access method includes: determining a first channel interference value, the first channel interference value determined by the originating device from a channel interference measurement; receiving a second channel interference value sent by a receiving end device, wherein the second channel interference value is determined by the receiving end device according to channel interference measurement; and determining whether to access a channel according to the first channel interference value and the second channel interference value. The method and the device achieve the purpose that the receiving end device assists the transmitting end device to access the channel, and are low in resource overhead and low in channel access difficulty.

Description

Channel access method and device and storage medium Technical Field
The present disclosure relates to the field of communications, and in particular, to a channel access method and apparatus, and a storage medium.
Background
On NR-U (New Radio on Unlicensed Spectrum), a transmitting-end device generally needs to monitor a Channel, that is, CCA (Clear Channel Assessment, Clear Channel detection) before occupying the Channel to transmit data. If the transmitting-end equipment judges that the Channel is idle after CCA, the transmitting-end equipment can Occupy the Channel to transmit data, the MCOT (Maximum Channel occupancy Time) of the transmitting-end equipment can be appointed by a protocol or configured/indicated by a base station, otherwise, the transmitting-end equipment cannot Occupy the Channel. The above procedure is generally referred to as a channel access mechanism of LBT (Listen Before Talk) over unlicensed band.
Currently, the channel interference situation may be evaluated by the originating device to decide whether to access the channel, i.e. the originating device performs the LBT mechanism.
Disclosure of Invention
In order to overcome the problems in the related art, embodiments of the present disclosure provide a channel access method and apparatus, and a storage medium.
According to a first aspect of the embodiments of the present disclosure, there is provided a channel access method, which is used for an originating device, and includes:
determining a first channel interference value, the first channel interference value determined by the originating device from a channel interference measurement;
receiving a second channel interference value sent by a receiving end device, wherein the second channel interference value is determined by the receiving end device according to channel interference measurement;
and determining whether to access a channel according to the first channel interference value and the second channel interference value.
Optionally, the determining whether to access a channel according to the first channel interference value and the second channel interference value includes:
and determining an access channel under the condition that the first channel interference value is smaller than or equal to a first preset threshold value and the second channel interference value is smaller than or equal to a second preset threshold value.
Optionally, the determining whether to access a channel according to the first channel interference value and the second channel interference value includes:
when the first channel interference value is larger than a first preset threshold value, a channel is not accessed; or
And under the condition that the second channel interference value is greater than a second preset threshold value, not accessing the channel.
Optionally, the determining whether to access a channel according to the first channel interference value and the second channel interference value includes:
and under the condition that the channel is within the effective time length corresponding to the second channel interference value, determining whether to access a channel according to the first channel interference value and the second channel interference value.
Optionally, the method further comprises:
receiving an indication message, wherein the indication message is used for indicating the effective duration; or
Determining the effective duration based on agreement; or
And determining the effective duration based on a preset period corresponding to the second channel interference value.
Optionally, the method further comprises:
and sending first indication information, wherein the first indication information is used for indicating the receiving end equipment to send the second channel interference value to the transmitting end equipment.
Optionally, the method further comprises:
and sending second indication information, where the second indication information is used to indicate the receiving end device to send the second channel interference values corresponding to at least part of the sending beams one to the sending end device.
Optionally, the determining whether to access a channel according to the first channel interference value and the second channel interference value includes:
determining a target channel interference value corresponding to a target transmission beam from the second channel interference values corresponding to the at least partial transmission beams one to one;
and determining whether to access a channel through the target transmission beam according to the first channel interference value and the target channel interference value.
Optionally, the originating device is a network device, or the originating device is a terminal.
According to a second aspect of the embodiments of the present disclosure, there is provided a channel access method, where the method is used for a receiving device, and includes:
determining a second channel interference value, wherein the second channel interference value is determined by the receiving end equipment according to channel interference measurement;
and sending the second channel interference value to the originating device.
Optionally, the sending the second channel interference value to the originating device includes:
and sending the second channel interference value to the originating device according to a preset period.
Optionally, the method further comprises:
and receiving first indication information sent by the transmitting end equipment, wherein the first indication information is used for indicating the receiving end equipment to send the second channel interference value to the transmitting end equipment.
Optionally, the determining the second channel interference value includes:
second channel interference values are determined which correspond one-to-one to at least some of the transmit beams.
Optionally, the determining second channel interference values corresponding to at least part of the transmission beams in a one-to-one manner includes:
determining receiving beams corresponding to at least part of the transmitting beams;
and determining second channel interference values in one-to-one correspondence with the at least part of the transmission beams, wherein the second channel interference values in one-to-one correspondence with the at least part of the transmission beams are determined by respectively measuring channel interference by adopting the receiving beams in one-to-one correspondence with the at least part of the transmission beams.
Optionally, the method further comprises:
and receiving second indication information sent by the sending end device, wherein the second indication information is used for indicating the receiving end device to send second channel interference values corresponding to at least part of sending beams to the sending end device.
Optionally, the method further comprises:
determining the at least partial transmit beam according to a protocol convention.
Optionally, the receiving end device is a terminal, or the receiving end device is a base station.
According to a third aspect of the embodiments of the present disclosure, there is provided a channel access apparatus, the apparatus being used for an originating device, including:
a first determination module configured to determine a first channel interference value, the first channel interference value determined by the originating device from a channel interference measurement;
a receiving module configured to receive a second channel interference value transmitted by a receiving end device, the second channel interference value being determined by the receiving end device according to a channel interference measurement;
a second determining module configured to determine whether to access a channel according to the first channel interference value and the second channel interference value.
Optionally, the processing module is further configured to determine an access channel when the first channel interference value is smaller than or equal to a first preset threshold value and the second channel interference value is smaller than or equal to a second preset threshold value.
Optionally, the processing module is further configured to not access a channel when the first channel interference value is greater than a first preset threshold value; or
The processing module is further configured to not access a channel when the second channel interference value is greater than a second preset threshold value.
Optionally, the processing module is further configured to determine whether to access a channel according to the first channel interference value and the second channel interference value when the time duration is within the effective time duration corresponding to the second channel interference value.
Optionally, the receiving module is further configured to receive an indication message, where the indication message is used to indicate the valid duration; or
The processing module is further configured to determine the effective duration based on a protocol agreement; or
The processing module is further configured to determine the effective duration based on a preset period corresponding to the second channel interference value.
Optionally, the apparatus further comprises:
a sending module, configured to send first indication information, where the first indication information is used to indicate the receiving end device to send the second channel interference value to the sending end device.
Optionally, the apparatus further comprises:
a sending module, configured to send second indication information, where the second indication information is used to indicate the receiving end device to send the second channel interference values corresponding to at least part of the sending beams one to the sending end device.
Optionally, the processing module is further configured to determine, in the second channel interference values corresponding to the at least part of the transmission beams in a one-to-one correspondence, a target channel interference value corresponding to a target transmission beam; and determining whether to access a channel through the target transmission beam according to the first channel interference value and the target channel interference value.
Optionally, the originating device is a network device, or the originating device is a terminal.
According to a fourth aspect of the embodiments of the present disclosure, there is provided a channel access apparatus, where the apparatus is used for a receiving device, and the apparatus includes:
a third determining module configured to determine a second channel interference value, which is determined by the receiving end device according to the channel interference measurement;
a transmitting module configured to transmit the second channel interference value to an originating device.
Optionally, the sending module is further configured to send the second channel interference value to the originating device according to a preset period.
Optionally, the apparatus further comprises:
and the receiving module is used for receiving first indication information sent by the sending end equipment, wherein the first indication information is used for indicating the receiving end equipment to send the second channel interference value to the sending end equipment.
Optionally, the processing module is further configured to determine second channel interference values corresponding to at least some of the transmission beams in a one-to-one manner.
Optionally, the processing module is further configured to determine a receiving beam corresponding to at least part of the transmitting beams one to one; and determining second channel interference values in one-to-one correspondence with the at least part of the transmission beams, wherein the second channel interference values in one-to-one correspondence with the at least part of the transmission beams are determined by respectively performing channel interference measurement by adopting the receiving beams in one-to-one correspondence with the at least part of the transmission beams.
Optionally, the apparatus further comprises:
a receiving module, configured to receive second indication information sent by the originating device, where the second indication information is used to indicate the receiving device to send a second channel interference value corresponding to at least part of the sending beams one to the originating device.
Optionally, the processing module is further configured to determine the at least part of the transmission beam according to a protocol convention.
According to a fifth aspect of embodiments of the present disclosure, there is provided a computer-readable storage medium storing a computer program for executing the channel access method of any one of the first aspect.
According to a sixth aspect of embodiments of the present disclosure, there is provided a computer-readable storage medium storing a computer program for executing the channel access method of any one of the second aspects.
According to a seventh aspect of the embodiments of the present disclosure, there is provided a communication apparatus comprising:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to perform the channel access method of any of the above first aspects.
According to an eighth aspect of an embodiment of the present disclosure, there is provided a communication apparatus including:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to perform the channel access method of any of the second aspect.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:
in the embodiment of the present disclosure, the originating device may determine a first channel interference value and a second channel interference value sent by the accessing receiving device, where the first channel interference value is determined by the originating device according to the channel interference measurement, and the second channel interference value is determined by the receiving device according to the channel interference measurement. The transmitting terminal equipment can determine whether to access the channel according to the first channel interference value and the second channel interference value, the purpose that the receiving terminal equipment assists the transmitting terminal equipment to access the channel is achieved, resource overhead is low, and channel access difficulty is low.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a flowchart illustrating a channel access method according to an exemplary embodiment.
Fig. 2 is a flow chart illustrating another channel access method according to an example embodiment.
Fig. 3 is a flow chart illustrating another channel access method according to an example embodiment.
Fig. 4 is a flow chart illustrating another channel access method according to an example embodiment.
Fig. 5 is a flow chart illustrating another channel access method according to an example embodiment.
Fig. 6 is a flow chart illustrating another channel access method according to an example embodiment.
Fig. 7 is a flow chart illustrating another channel access method according to an example embodiment.
Fig. 8 is a flow chart illustrating another channel access method according to an example embodiment.
Fig. 9 is a flow chart illustrating another channel access method according to an example embodiment.
Fig. 10 is a flow chart illustrating another channel access method according to an example embodiment.
Fig. 11 is a flow chart illustrating another channel access method according to an example embodiment.
Fig. 12 is a flow chart illustrating another channel access method according to an example embodiment.
Fig. 13 is a flow chart illustrating another channel access method according to an example embodiment.
Fig. 14 is a flow chart illustrating another channel access method according to an example embodiment.
Fig. 15 is a flow chart illustrating another channel access method according to an example embodiment.
Fig. 16 is a flow chart illustrating another channel access method according to an example embodiment.
Fig. 17 is a flow chart illustrating another channel access method according to an example embodiment.
Fig. 18 is a flow chart illustrating another channel access method according to an example embodiment.
Fig. 19 is a flow chart illustrating another channel access method according to an example embodiment.
Fig. 20 is a block diagram illustrating a channel access apparatus according to an example embodiment.
Fig. 21 is a block diagram illustrating another channel access arrangement in accordance with an example embodiment.
Fig. 22 is a block diagram of a communication device shown in accordance with an exemplary embodiment of the present disclosure.
Fig. 23 is a schematic structural diagram of another communication device shown in accordance with an exemplary embodiment of the present disclosure.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.
In the channel access scheme provided by the present disclosure, the transmitting end device may be a base station, and correspondingly, the receiving end device may be a terminal. Alternatively, the originating device may be a terminal, and correspondingly, the receiving device is a base station.
The channel access scheme provided by the embodiments of the present disclosure is introduced from the originating device side. In the following embodiments, the originating device is a base station.
An embodiment of the present disclosure provides a channel access method, which may be used in a base station, and as shown in fig. 1, fig. 1 is a flowchart illustrating a channel access method according to an embodiment, where the method may include the following steps:
in step 101, a first channel interference value is determined.
In the disclosed embodiment, the first channel interference value is determined by the base station as the originating device according to the channel interference measurement. The base station may perform channel interference measurement, i.e., LBT, under NR-U in case there is data to send to the terminal, thereby determining the first channel interference value.
In step 102, a second channel interference value transmitted by the terminal is received.
In the embodiment of the present disclosure, the second channel interference value is determined by the terminal as the receiving end device according to the channel interference measurement.
In step 103, it is determined whether to access a channel according to the first channel interference value and the second channel interference value.
In the embodiment of the present disclosure, the base station may determine whether to access the channel jointly according to the first channel interference value determined by the base station and the second channel interference value reported by the terminal.
In the above embodiment, the base station serving as the originating device may determine whether to access the channel according to the first channel interference value determined by performing the channel interference measurement and the second channel interference value sent by the terminal serving as the receiving device, so as to achieve the purpose of the receiving device assisting the originating device in accessing the channel, and the resource overhead is relatively small and the channel access difficulty is low.
In some optional embodiments, referring to fig. 2, fig. 2 is a flowchart illustrating a channel access method according to an embodiment, which may be used in a base station, and includes the following steps:
in step 201, a first channel interference value is determined.
In the embodiment of the present disclosure, the base station may perform channel interference measurement, that is, perform LBT, under NR-U when there is data to be sent to the terminal, so as to determine the first channel interference value.
In step 202, a second channel interference value transmitted by the terminal is received.
In the embodiment of the present disclosure, the second channel interference value is determined by the terminal as the receiving end device according to the channel interference measurement.
In step 203, an access channel is determined when the first channel interference value is smaller than or equal to a first preset threshold value and the second channel interference value is smaller than or equal to a second preset threshold value.
In the embodiment of the present disclosure, the base station may determine that the channel may be accessed when the first channel interference value is smaller and the second channel interference value sent by the terminal is also smaller. The first preset threshold and the second preset threshold may be the same or different, and the disclosure does not limit this.
In the above embodiment, the base station may access the channel when the first channel interference value is smaller and the second channel interference value is smaller, so as to achieve the purpose that the receiving end device assists the originating end device to access the channel.
In one possible example of the present disclosure, the base station does not access the channel in case the first channel interference value is greater than a first preset threshold value.
In the embodiment of the present disclosure, the base station may not access the channel when the LBT determines that the first channel interference value is large.
In another possible example, the base station does not access the channel in case said second channel interference value is larger than a second preset threshold value.
In the embodiment of the present disclosure, the base station may not access the channel under the condition that the second channel interference value reported by the terminal is large.
In the above embodiment, the base station may not access the channel under the condition that the first channel interference value determined by the base station itself through LBT is larger or the second channel interference value determined by the terminal through LBT is larger, and the purpose of accessing the channel by the receiving end device and the transmitting end device is also achieved.
In some optional embodiments, referring to fig. 3, fig. 3 is a flowchart illustrating a channel access method according to an embodiment, where the method may be used in a base station, and includes the following steps:
in step 301, a first channel interference value is determined.
In the embodiment of the present disclosure, the base station may perform channel interference measurement, that is, perform LBT, under NR-U when there is data to be sent to the terminal, so as to determine the first channel interference value.
In step 302, a second channel interference value transmitted by the terminal is received.
In the disclosed embodiment, the second channel interference value is determined by the terminal performing channel interference measurement.
In step 303, under the condition that the time length is within the effective time length corresponding to the second channel interference value, determining whether to access a channel according to the first channel interference value and the second channel interference value.
In the embodiment of the present disclosure, the base station may determine whether to access the channel according to the first channel interference value determined by the base station and the second channel interference value reported by the terminal when the base station is within the effective duration corresponding to the second channel interference value sent by the terminal, that is, when the second channel interference value sent by the terminal is effective.
In one possible example, the base station may cause the terminal to transmit the valid second channel interference value again in case it is determined that the second channel interference value is invalid.
In the above embodiment, the base station, as the originating device, may determine whether to access the channel based on the first channel interference value determined by the base station and the second channel interference value sent by the terminal under the condition that the second channel interference value sent by the terminal is valid, so as to achieve the purpose of assisting the originating device to access the channel by the receiving device, and ensure the reliability of channel access.
In one possible example of the disclosure, the base station may receive an indication message indicating a valid duration of the second channel interference value transmitted by the terminal, where the indication message is transmitted by the terminal to the base station.
In another possible example, the base station may determine the validity duration corresponding to the second channel interference value transmitted by the terminal based on protocol convention.
In another possible example, the base station may determine the effective duration corresponding to the second channel interference value based on a preset period corresponding to the second channel interference value. That is, the base station may consider that the second channel interference value sent by the terminal is always valid until the next preset period is reached.
In the above embodiment, the base station may determine the effective duration corresponding to the second channel interference value sent by the terminal in different manners, so as to ensure reliability of channel access.
In some optional embodiments, referring to fig. 4, fig. 4 is a flowchart illustrating a channel access method according to an embodiment, which may be used in a base station, and includes the following steps:
in step 401, first indication information is transmitted.
In the embodiment of the disclosure, the base station may send, to the terminal, first indication information, where the first indication information is used to instruct the terminal to send the second channel interference value to the base station.
In one possible example, the base station may transmit the first indication Information to the terminal by using, but not limited to, DCI (Downlink Control Information).
In one possible example, the base station may send the first indication information to the terminal by, but not limited to, using higher layer signaling, including, but not limited to, RRC signaling.
In step 402, a second channel interference value sent by the terminal based on the first indication information is received.
In the embodiment of the disclosure, after receiving the first indication information, the terminal does not need to perform channel interference measurement immediately, may perform channel interference measurement at intervals of a specified number of slots, and sends the determined second channel interference value to the base station.
In step 403, a first channel interference value is determined.
In the embodiment of the present disclosure, the execution order of (step 401 to step 402) and step 403 is not limited. That is, the base station may determine the first channel interference value, then send the first indication information to the terminal, and wait for the terminal to send the second channel interference value to the base station. Or the base station firstly sends the first indication information to the terminal, and performs channel interference measurement after receiving the second channel interference value sent by the terminal to determine the first channel interference value.
Or, if the second channel interference value received by the base station and sent by the terminal is still in the validity period, the base station does not need to send the first indication information to the terminal again, and the base station can directly measure the channel interference to determine the first channel interference value.
In step 404, it is determined whether to access a channel according to the first channel interference value and the second channel interference value.
In the above embodiment, the base station may instruct the terminal to send the second channel interference value aperiodically through the first instruction information, so as to achieve the purpose of assisting the originating device to access the channel by the terminating device, and the resource overhead is small and the channel access difficulty is low.
In some optional embodiments, the base station, as the originating device, may configure a preset period for the terminal, and the terminal periodically sends the second channel interference value to the base station based on the preset period. Wherein the second channel interference value is determined by the terminal from the channel interference measurement.
In one example, the base station may transmit the preset period configured for the terminal to the terminal through DCI or higher layer signaling, wherein the higher layer signaling includes, but is not limited to, RRC signaling.
In the above embodiment, the base station may configure, for the terminal, a preset period for periodically sending the second channel interference measurement value, so as to jointly determine whether to access the channel based on the second channel interference measurement value periodically sent by the terminal serving as the receiving end device and the first channel interference measurement value determined by the base station, and the availability is high.
In some alternative embodiments, referring to fig. 5, fig. 5 is a flowchart illustrating a channel access method according to an embodiment, where the method may include the following steps:
in step 501, second indication information is sent to the terminal.
In this embodiment of the disclosure, the second indication information is used to instruct the terminal to send the second channel interference values corresponding to at least part of the sending beams one to the base station. The transmission beam includes a beam used when the base station transmits data to the terminal. The base station may send the second indication information to the terminal through, but not limited to, DCI or higher layer signaling, wherein the higher layer signaling includes, but is not limited to, RRC signaling.
In step 502, the second channel interference values, which are sent by the receiving terminal according to the second indication information and correspond to the at least part of the sending beams in a one-to-one manner, are received.
In the embodiment of the present disclosure, the terminal may determine, according to the second indication information of the base station, the receiving beams corresponding to the indication part of the transmission beams one to one, where the receiving beams include beams used when the terminal receives data. The terminal may perform channel interference measurement with each receiving beam, and use the obtained channel interference value as a second channel interference value corresponding to the corresponding transmitting beam. Further, the terminal sends the second channel interference values corresponding to the at least part of the sending beams one to the base station.
In step 503, a target channel interference value corresponding to a target transmission beam is determined among the second channel interference values corresponding to the at least partial transmission beams in a one-to-one correspondence.
In the embodiment of the present disclosure, the target transmission beam is a transmission beam used when the base station accesses the channel for data transmission.
In step 504, a first channel interference value is determined.
In the disclosed embodiment, the base station may perform channel interference measurement to determine the first channel interference value.
The present disclosure does not limit the execution order of (step 501 to step 503) and step 504. The base station may determine the first channel interference value, then send the second indication information to the terminal, and receive the second channel interference value that is sent by the terminal and corresponds to the at least part of the sending beams in a one-to-one manner, thereby determining the target channel interference value. Or the base station may send the second indication information to the terminal first, so as to determine the first channel interference value after determining the target channel interference value.
In step 505, it is determined whether to access a channel through the target transmission beam according to the first channel interference value and the target channel interference value.
In this embodiment of the present disclosure, the base station may access the channel through the target transmission beam when the first channel interference value is smaller than or equal to a first preset threshold value, that is, the first channel interference value is smaller, and the target channel interference value is smaller than or equal to a second preset threshold value, that is, the target channel interference value is also smaller.
In another possible example, the base station may not access the channel through the target transmission beam if the first channel interference value is large.
In another possible example, the base station may not access the channel through the target transmit beam if the target channel interference value is large.
In the above embodiment, the base station may determine whether to access the channel jointly according to the second channel interference values, which are sent by the terminal and correspond to at least part of the sending beams in a one-to-one manner, and the first channel interference values determined by the base station, so that the purpose of assisting the originating device to access the channel by the receiving device is achieved, and the reliability of channel access is further improved.
Next, a channel access scheme provided by the embodiment of the present disclosure is introduced from a receiving end device side, where in the following embodiment, the receiving end device is a terminal.
An embodiment of the present disclosure provides a channel access method, which may be used in a terminal, and as shown in fig. 6, fig. 6 is a flowchart illustrating a channel access method according to an embodiment, where the method may include the following steps:
in step 601, a second channel interference value is determined.
In the embodiment of the present disclosure, the second channel interference value is determined by the terminal as the receiving end device according to the channel interference measurement.
In step 602, a second channel interference value is sent to the base station.
In the above embodiment, the terminal serves as a receiving end device, and may send the second channel interference value determined by the terminal to the base station serving as an originating end device, and the auxiliary base station accesses the channel, so that the availability is high.
In some optional embodiments, referring to fig. 7, fig. 7 is a flowchart illustrating a channel access method according to an embodiment, which may be used for a terminal, and includes the following steps:
in step 701, a second channel interference value is determined.
In this embodiment of the present disclosure, the terminal may periodically perform channel interference measurement in a preset period agreed by a protocol or a preset period configured by the base station, so as to determine the second channel interference value.
In step 702, the second channel interference value is sent to the base station according to a preset period.
In the above embodiment, the terminal may periodically send the second channel interference value to the base station, so as to assist the base station to access the channel, thereby achieving the purpose that the receiving end device assists the originating device to access the channel.
In some optional embodiments, referring to fig. 8, fig. 8 is a flowchart illustrating a channel access method according to an embodiment, which may be used for a terminal, and includes the following steps:
in step 801, first indication information transmitted by a base station is received.
In the embodiment of the present disclosure, the base station may send the first indication information to the terminal through the DCI, and instruct the terminal to send the second channel interference value to the base station. Or the base station may send the first indication information to the terminal through higher layer signaling, which may include, but is not limited to, RRC signaling.
In step 802, a second channel interference value is determined based on the first indication information.
In the embodiment of the disclosure, the terminal does not need to perform channel interference measurement immediately when receiving the first indication information, and may perform channel interference measurement at intervals of a specified number of slots, thereby determining the terrestrial heat channel interference value.
In step 803, the second channel interference value is sent to the base station.
In the above embodiment, the terminal may send the second channel interference value to the base station aperiodically after determining the second channel interference value based on the first indication information sent by the base station. The method and the device achieve the purpose that the receiving end device assists the transmitting end device to access the channel, reduce the difficulty of accessing the channel by the auxiliary transmitting end device and have low resource overhead.
In some optional embodiments, the terminal, as a receiving end device, may determine second channel interference values in one-to-one correspondence with at least some of the transmission beams. Referring to fig. 9, fig. 9 is a flowchart illustrating a channel access method, which may be used for a terminal, according to an embodiment, and a process of determining and transmitting a second channel interference value in one-to-one correspondence with at least some transmission beams may include the following steps:
in step 901, receive beams are determined that correspond one-to-one to at least some of the transmit beams.
In the embodiment of the present disclosure, the receiving beam may refer to a beam used when the terminal receives data transmitted by the base station, and each receiving beam may correspond to one transmitting beam of the base station.
In step 902, second channel interference values corresponding to the at least partial transmission beams one to one are determined.
In the embodiment of the present disclosure, the terminal may use different receiving beams to perform channel interference measurement respectively, and use the determined channel interference value as the second channel interference value corresponding to the corresponding transmitting beam.
For example, at least some of the transmission beams include a transmission beam 1 and a transmission beam 2, the transmission beam 1 corresponds to a reception beam 1, the transmission beam 2 corresponds to a reception beam 2, the terminal performs channel interference measurement using the reception beam 1 to determine a second channel interference value corresponding to the transmission beam 1, and the terminal performs channel interference measurement using the reception beam 2 to determine a second channel interference value corresponding to the transmission beam 2.
In step 903, second channel interference values corresponding to the at least part of the transmission beams in a one-to-one manner are transmitted to the base station.
In the above embodiment, the terminal may determine the second channel interference values corresponding to at least some of the transmission beams one to one, and transmit the second channel interference values to the base station, so as to assist the base station to perform channel access better, thereby improving reliability of channel access.
In some optional embodiments, referring to fig. 10, fig. 10 is a flowchart illustrating a channel access method according to an embodiment, which may be used for a terminal, and includes the following steps:
in step 1001, second indication information transmitted by the base station is received.
In this embodiment, the second indication information is used to instruct the terminal to transmit a second channel interference value corresponding to at least part of the transmission beams one to the base station.
In step 1002, receive beams are determined that correspond one-to-one to at least some of the transmit beams.
In the embodiment of the present disclosure, the terminal may first determine receiving beams corresponding to at least some of the transmitting beams, where the receiving beams refer to beams used when the terminal receives data transmitted by the base station, and each receiving beam may correspond to one transmitting beam of the base station.
In step 1003, second channel interference values corresponding to the at least partial transmission beams one to one are determined.
After determining the receiving beams, the terminal may use different receiving beams to perform channel interference measurement, and use the determined channel interference value as a second channel interference value corresponding to the corresponding transmitting beam.
In step 1004, second channel interference values corresponding to the at least partial transmission beams in a one-to-one manner are transmitted to the base station.
In the above embodiment, the terminal may determine at least part of the transmission beams according to the second indication information sent by the base station, and further determine the corresponding reception beams. Therefore, the second channel interference values corresponding to at least part of the transmission beams one to one can be transmitted to the base station, the auxiliary base station can better perform channel access, and the reliability of the channel access is improved.
In some alternative embodiments, referring to fig. 11, fig. 11 is a flowchart illustrating a channel access method according to an embodiment, where the method may include the following steps:
in step 1101, the at least partial transmit beam is determined according to protocol conventions.
In step 1102, receive beams are determined that correspond one-to-one to at least some of the transmit beams.
In the embodiment of the present disclosure, the terminal may first determine receiving beams corresponding to at least some of the transmitting beams, where the receiving beams refer to beams used when the terminal receives data transmitted by the base station, and each receiving beam may correspond to one transmitting beam of the base station.
In step 1103, second channel interference values corresponding to the at least partial transmission beams one to one are determined.
After determining the receiving beams, the terminal may use different receiving beams to perform channel interference measurement, and use the determined channel interference value as a second channel interference value corresponding to the corresponding transmitting beam.
In step 1104, second channel interference values corresponding to the at least partial transmission beams in a one-to-one manner are transmitted to the base station.
In the above embodiment, the terminal may determine at least part of the transmission beams according to a protocol convention, and further determine the reception beams corresponding to at least part of the transmission beams one to one. Therefore, the second channel interference values corresponding to at least part of the transmission beams one to one can be transmitted to the base station, the auxiliary base station can better perform channel access, and the reliability of the channel access is improved.
In some alternative embodiments, referring to fig. 12, fig. 12 is a flowchart illustrating a channel access method providing an interactive procedure between a base station as an originating device and a terminal as a terminating device according to an embodiment, including the following steps:
in step 1201, the base station determines a first channel interference value.
In the embodiment of the present disclosure, the base station may perform LBT to determine the first channel interference value when data needs to be sent to the terminal.
In step 1202, the base station transmits first indication information to the terminal.
In the embodiment of the disclosure, the base station may send first indication information to the terminal through the DCI, where the first indication information is used to instruct the terminal to send the second channel interference value to the base station.
In step 1203, the terminal determines a second channel interference value based on the first indication information.
In this embodiment of the present disclosure, after receiving the first indication information, the terminal may perform channel interference measurement at intervals of a specified number of slots, so as to determine the second channel interference value.
In step 1204, the terminal sends the second channel interference value to the base station.
In step 1205, the base station determines whether to access a channel according to the first channel interference value and the second channel interference value.
In one possible example, the base station determines the access channel when the first channel interference value is less than or equal to a first preset threshold value and the second channel interference value is less than or equal to a second preset threshold value.
In one possible example, the base station does not access the channel if the first channel interference value is greater than a first preset threshold.
In another possible example, the base station does not access the channel if the second channel interference value is greater than a second preset threshold.
In the above embodiment, the base station serves as an originating device, the terminal serves as a receiving device, and the base station may jointly determine whether to access the channel based on the first channel interference value determined by the base station and the second channel interference value sent by the terminal. The purpose of assisting the sending end equipment to access the channel by the receiving end equipment is achieved, the resource overhead is low, and the channel access difficulty is low.
Next, a channel access scheme provided by the embodiment of the present disclosure is introduced from the originating device side. In the following embodiments, the originating device is a terminal.
An embodiment of the present disclosure provides a channel access method, which may be used in a terminal, and as shown in fig. 13, fig. 13 is a flowchart illustrating a channel access method according to an embodiment, where the method may include the following steps:
in step 1301, a first channel interference value is determined.
In the embodiment of the present disclosure, when the terminal has data to send to the base station, the base station may perform channel interference measurement first, that is, the base station performs LBT, and when the base station determines that the channel interference is small, the base station sends a data transmission instruction to the terminal, where the data transmission instruction is used to instruct the terminal to perform data transmission after one or more slots.
Before data transmission, the terminal also needs to perform channel interference measurement, i.e., LBT, to determine the first channel interference value.
In another possible example, the terminal may directly perform channel interference measurement, i.e., LBT, in the case of data needing to be transmitted without waiting for the indication of the base station in a given scenario, so as to transmit the data based on the LBT result. The specific scenario includes, but is not limited to, a WIFI (Wireless Fidelity) scenario.
In the embodiment of the present disclosure, the first channel interference value is determined by the terminal as the transmitting device according to the channel interference measurement.
In step 1302, a second channel interference value transmitted by the base station is received.
In the embodiment of the present disclosure, the second channel interference value is determined by the base station as the receiving end device according to the channel interference measurement.
In step 1303, it is determined whether to access a channel according to the first channel interference value and the second channel interference value.
In the embodiment of the disclosure, the terminal may jointly determine whether to access the channel according to the first channel interference value determined by the terminal and the second channel interference value sent by the base station.
In the above embodiment, the terminal serving as the originating device may determine whether to access the channel according to the first channel interference value determined by performing the channel interference measurement and the second channel interference value sent by the base station serving as the receiving device, so as to achieve the purpose of assisting the originating device to access the channel by the receiving device, and the terminal has low resource overhead and low channel access difficulty.
In one possible example of the present disclosure, the terminal may determine the access channel when the first channel interference value is less than or equal to a first preset threshold value, and the second channel interference value transmitted by the base station is less than or equal to a second preset threshold value.
In one possible example of the disclosure, the terminal may not access the channel if the first channel interference value is greater than a first preset threshold value.
In one possible example of the disclosure, the terminal does not access the channel in case that the second channel interference value is greater than a second preset threshold value.
In the above embodiment, the base station as the receiving end device assists the terminal as the transmitting end device to access the channel.
In some optional embodiments, referring to fig. 14, fig. 14 is a flowchart illustrating a channel access method according to an embodiment, which may be used for a terminal, and includes the following steps:
in step 1401, a first channel interference value is determined.
Wherein the first channel interference value is determined by the terminal as the originating device according to the channel interference measurement.
In step 1402, a second channel interference value transmitted by the base station is received.
The second channel interference value is determined by the base station as the receiving end device according to the channel interference measurement.
In step 1403, an indication message sent by the base station is received.
In the embodiment of the present disclosure, the indication message may be used to indicate a valid duration corresponding to the second channel interference value. The base station may send the indication message to the terminal through a high-level signaling, where the high-level signaling includes, but is not limited to, a Radio Resource Control (RRC) signaling.
In step 1404, in a case where the time length is within the valid duration corresponding to the second channel interference value, it is determined whether to access a channel according to the first channel interference value and the second channel interference value.
In the embodiment of the present disclosure, the terminal may determine whether to access the channel according to the first channel interference value determined by the terminal itself and the second channel interference value sent by the base station when the terminal is within the effective duration corresponding to the second channel interference value sent by the base station, that is, when the second channel interference value sent by the base station is effective.
In one possible example, the terminal may cause the base station to transmit the valid second channel interference value again in case it is determined that the second channel interference value is invalid.
In the foregoing embodiment, the terminal, as the originating device, may determine whether to access the channel based on the first channel interference value determined by the terminal and the second channel interference value sent by the base station under the condition that the second channel interference value sent by the base station is valid, so as to achieve the purpose of assisting the originating device to access the channel by the receiving device, and ensure reliability of channel access.
In some optional embodiments, the terminal may determine the valid duration corresponding to the second channel interference value according to a protocol convention, or may determine the valid duration according to the base station configuration. And determining whether to access the channel according to the first channel interference value determined by the base station and the second channel interference value sent by the base station within the effective time length corresponding to the second channel interference value. The base station may send the validity duration to the terminal through, but not limited to, DCI or higher layer signaling, where the higher layer signaling includes, but is not limited to, RRC signaling.
In some optional embodiments, the terminal may determine the effective duration according to a preset period corresponding to the second channel interference value. That is, the terminal may consider that the second channel interference value sent by the base station is always valid until the next preset period is reached.
In the above embodiment, the terminal may determine the effective duration corresponding to the second channel interference value sent by the base station in different manners, so as to ensure reliability of channel access.
In some optional embodiments, referring to fig. 15, fig. 15 is a flowchart illustrating a channel access method according to an embodiment, which may be used for a terminal, and includes the following steps:
in step 1501, first indication information is transmitted.
In the embodiment of the disclosure, the terminal may send first indication information to the base station, where the first indication information is used to instruct the base station to send the second channel interference value to the terminal. In one possible example, the first indication information includes, but is not limited to, an uplink physical layer control instruction.
In step 1502, a second channel interference value sent by the base station based on the first indication information is received.
In step 1503, a first channel interference value is determined.
In the embodiment of the present disclosure, the execution order of (steps 1501 to 1502) and 1503 is not limited. Wherein the first channel interference value is determined by the terminal according to the channel interference measurement.
In step 1504, it is determined whether to access a channel according to the first channel interference value and the second channel interference value.
In the above embodiment, the terminal instructs the base station to aperiodically send the second channel interference value through the first indication information, so that the purpose of assisting the originating device to access the channel by the receiving device is achieved, and the resource overhead is low and the channel access difficulty is low.
In some optional embodiments, the base station may determine, according to a protocol convention, a preset period for sending the second channel interference value, or the preset period is directly determined by the base station, and the base station may send the second channel interference value to the terminal after the determination, through but not limited to DCI or higher layer signaling, so that the base station sends the second channel interference value to the terminal periodically, and the terminal receives the second channel interference value according to the preset period.
In the above embodiment, when the terminal serves as the originating device and the base station serves as the receiving device, the base station may periodically send the second channel interference value to the terminal, so that the terminal may determine whether to access the channel according to the first channel interference value and the second channel interference value periodically sent by the base station, and the availability is high.
In some alternative embodiments, referring to fig. 16, fig. 16 is a flow chart illustrating a channel access method according to an embodiment, which may include the following steps:
in step 1601, second indication information is transmitted.
In this embodiment of the disclosure, the second indication information is used to instruct the base station to transmit the second channel interference values corresponding to at least part of the transmission beams one to the terminal. The transmission beam includes a beam used when the terminal transmits data to the base station.
In step 1602, the second channel interference values, which are sent by the base station according to the second indication information and correspond to the at least part of the sending beams in a one-to-one manner, are received.
In the embodiment of the present disclosure, the base station may determine, according to the second indication information, the reception beams corresponding to the indication part transmission beams one to one, where the reception beams include beams used when the base station receives data. The base station may perform channel interference measurement with each receiving beam, and use the obtained channel interference value as a second channel interference value corresponding to the corresponding transmitting beam. Further, the second channel interference values corresponding to the at least part of the transmission beams in a one-to-one manner are transmitted to the terminal.
In step 1603, a target channel interference value corresponding to a target transmission beam is determined among the second channel interference values in one-to-one correspondence with the at least partial transmission beams.
In the embodiment of the present disclosure, the target transmission beam is a transmission beam used when the terminal accesses the channel for data transmission.
In step 1604, a first channel interference value is determined.
The terminal may perform a channel interference measurement to determine a first channel interference value.
In step 1605, it is determined whether to access a channel through the target transmission beam according to the first channel interference value and the target channel interference value.
In the embodiment of the present disclosure, the terminal may access the channel through the target transmission beam when the first channel interference value is smaller and the target channel interference value is also smaller.
In another possible example, the terminal may not access the channel through the target transmission beam if the first channel interference value is large.
In another possible example, the terminal may not access the channel through the target transmit beam if the target channel interference value is large.
In the above embodiment, the terminal may determine whether to access the channel jointly according to the second channel interference value, which is sent by the base station and corresponds to at least part of the sending beams in a one-to-one manner, and the first channel interference value determined by the terminal, so that the purpose of the receiving end device assisting the originating device in accessing the channel is achieved, and the reliability of channel access is further improved.
Next, a channel access scheme provided by the embodiment of the present disclosure is introduced from a receiving end device side, where the receiving end device is a base station in the following embodiment.
An embodiment of the present disclosure provides a channel access method, which may be used in a base station, and as shown in fig. 17, fig. 17 is a flowchart illustrating a channel access method according to an embodiment, where the method may include the following steps:
in step 1701, a second channel interference value is determined.
In the disclosed embodiment, the base station may perform channel interference measurement to determine the second channel interference value.
In step 1702, a second channel interference value is transmitted to the terminal.
In the above embodiment, the base station, as a receiving end device, may send the second channel interference value determined by the base station itself to the terminal as a sending end device, and the auxiliary terminal accesses the channel, so that the availability is high.
In some optional embodiments, the base station may periodically perform channel interference measurement according to a preset period agreed by a protocol, and send the determined second channel interference value to the terminal, thereby achieving the purpose of periodically sending the second channel interference value to the terminal.
In some optional embodiments, the base station may perform channel interference measurement at intervals of a specified number of slots according to the first indication information sent by the terminal, determine a second channel interference value, and further send the second channel interference value to the terminal.
In the above embodiment, the base station may send the second channel interference value to the terminal aperiodically based on the first indication information, and assist the terminal to access the channel, so that the implementation is simple and convenient, and the availability is high.
In some optional embodiments, the base station, as a receiving end device, may determine second channel interference values corresponding to at least some of the transmission beams in a one-to-one manner, referring to fig. 18, where fig. 18 is a flowchart illustrating a channel access method according to an embodiment, and a process of determining and transmitting the second channel interference values corresponding to at least some of the transmission beams in the base station may include the following steps:
in step 1801, receive beams are determined that correspond one-to-one to at least some of the transmit beams.
In this disclosure, the base station may first determine receiving beams corresponding to at least some of the transmitting beams, where the receiving beams are beams used when the base station receives data as receiving end equipment, and each receiving beam may correspond to one transmitting beam used when the terminal transmits data.
In step 1802, second channel interference values in one-to-one correspondence with the at least partial transmit beams are determined.
After determining the receiving beams, the base station may use different receiving beams to perform channel interference measurement, and use the determined channel interference value as a second channel interference value corresponding to the corresponding transmitting beam.
In step 1803, second channel interference values corresponding to the at least some transmission beams one to one are transmitted to the terminal.
In the above embodiment, the base station may determine the second channel interference values corresponding to at least some of the transmission beams one to one, and transmit the second channel interference values to the terminal, so as to assist the terminal serving as the originating device to perform channel access better, thereby improving reliability of channel access.
In some optional embodiments, the base station may determine at least part of the transmission beams according to the second indication information sent by the terminal, so as to determine the reception beams corresponding to the indicated part of the transmission beams one to one, may perform channel interference measurement using different reception beams, respectively, and use the determined channel interference value as the second channel interference value corresponding to the corresponding transmission beam. And then the information is sent to the terminal to assist the terminal to access the channel.
In some optional embodiments, the base station may determine at least part of the transmission beams according to a protocol convention, so as to determine the reception beams corresponding to the indication part of the transmission beams one to one, may perform channel interference measurement using different reception beams, respectively, and use the determined channel interference value as the second channel interference value corresponding to the corresponding transmission beam. And then the information is sent to the terminal to assist the terminal to access the channel.
In some alternative embodiments, referring to fig. 19, fig. 19 is a flowchart illustrating a channel access method providing an interworking procedure between a terminal as an originating device and a base station as a terminating device according to an embodiment, including the steps of:
in step 1901, the terminal determines a first channel interference value.
In the embodiment of the present disclosure, the terminal may perform channel interference detection before transmitting data based on an instruction sent by the base station, or the terminal may directly perform channel interference detection in a specified scenario, so as to determine the first channel interference value.
In step 1902, the terminal transmits first indication information to the base station.
In the embodiment of the disclosure, the terminal may send first indication information to the terminal through an uplink physical layer instruction, where the first indication information is used to indicate the base station to send the second channel interference value to the terminal.
In step 1903, the base station determines a second channel interference value based on the first indication information.
In step 1904, the base station sends the second channel interference value to the terminal.
In step 1905, the terminal determines whether to access a channel according to the first channel interference value and the second channel interference value.
In the above embodiment, the terminal serves as an originating device, the base station serves as a receiving device, and the terminal may jointly determine whether to access the channel based on the first channel interference value determined by the terminal and the second channel interference value sent by the base station. The purpose of assisting the sending end equipment to access the channel by the receiving end equipment is achieved, the resource overhead is low, and the channel access difficulty is low.
Corresponding to the embodiment of the application function implementation method, the disclosure further provides an embodiment of an application function implementation device.
Referring to fig. 20, fig. 20 is a block diagram illustrating a channel access apparatus for an originating device, according to an example embodiment, including:
a processing module 2001 for determining a first channel interference value, the first channel interference value being determined by the originating device from a channel interference measurement;
a receiving module 2002, configured to receive a second channel interference value sent by a receiving end device, where the second channel interference value is determined by the receiving end device according to channel interference measurement;
the processing module 2001 is further configured to determine whether to access a channel according to the first channel interference value and the second channel interference value.
Optionally, the processing module 2001 is further configured to determine an access channel when the first channel interference value is smaller than or equal to a first preset threshold value, and the second channel interference value is smaller than or equal to a second preset threshold value.
Optionally, the processing module 2001 is further configured to not access a channel when the first channel interference value is greater than a first preset threshold value; or
The processing module 2001 is further configured to not access a channel when the second channel interference value is greater than a second preset threshold value.
Optionally, the processing module 2001 is further configured to determine whether to access a channel according to the first channel interference value and the second channel interference value when the time duration is within the valid duration corresponding to the second channel interference value.
Optionally, the receiving module 2002 is further configured to receive an indication message, where the indication message is used to indicate the valid duration; or
The processing module 2001 is further configured to determine the validity duration based on a protocol agreement; or
The processing module 2001 is further configured to determine the effective duration based on a preset period corresponding to the second channel interference value.
Optionally, the device further comprises (not shown in fig. 20):
a sending module 2003, configured to send first indication information, where the first indication information is used to indicate the receiving end device to send the second channel interference value to the sending end device.
Optionally, the device further comprises (not shown in fig. 20):
a sending module 2003, configured to send second indication information, where the second indication information is used to indicate the receiving end device to send the second channel interference values corresponding to at least part of the sending beams one to the sending end device.
Optionally, the processing module 2001 is further configured to determine, in the second channel interference values corresponding to the at least part of the transmission beams, a target channel interference value corresponding to a target transmission beam; and determining whether to access a channel through the target transmission beam according to the first channel interference value and the target channel interference value.
Optionally, the originating device is a network device, or the originating device is a terminal.
Referring to fig. 21, fig. 21 is a block diagram illustrating a channel access apparatus for a receiving device according to an exemplary embodiment, including:
a processing module 2101, configured to determine a second channel interference value, where the second channel interference value is determined by the receiving end device according to channel interference measurement;
a sending module 2102 configured to send the second channel interference value to an originating device.
Optionally, the sending module 2102 is further configured to send the second channel interference value to the originating device according to a preset period.
Optionally, the apparatus further comprises (not shown in fig. 21):
a receiving module 2103, configured to receive first indication information sent by the originating device, where the first indication information is used to indicate the receiving device to send the second channel interference value to the originating device.
Optionally, the processing module 2101 is further configured to determine second channel interference values corresponding to at least some of the transmission beams in a one-to-one manner.
Optionally, the processing module 2101 is further configured to determine receiving beams corresponding to at least some of the transmitting beams one to one; and determining second channel interference values in one-to-one correspondence with the at least part of the transmission beams, wherein the second channel interference values in one-to-one correspondence with the at least part of the transmission beams are determined by respectively performing channel interference measurement by adopting the receiving beams in one-to-one correspondence with the at least part of the transmission beams.
Optionally, the receiving end device is a terminal, or the receiving end device is a base station.
For the device embodiments, since they substantially correspond to the method embodiments, reference may be made to the partial description of the method embodiments for relevant points. The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the disclosed solution. One of ordinary skill in the art can understand and implement it without inventive effort.
Accordingly, the present disclosure also provides a computer-readable storage medium, which stores a computer program for executing the channel access method for any one of the originating device sides.
Accordingly, the present disclosure also provides a computer-readable storage medium, where a computer program is stored, where the computer program is used to execute the channel access method for any one of the receiving device sides.
Correspondingly, the present disclosure also provides a channel access apparatus, including:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to perform the channel access method of any of the above-mentioned originating device sides.
As shown in fig. 22, fig. 22 is a schematic structural diagram of a communication apparatus 2200 according to an exemplary embodiment. Apparatus 2200 may be provided as an originating device, which may be a base station. Referring to fig. 22, the apparatus 2200 includes a processing component 2222, a wireless transmit/receive component 2224, an antenna component 2226, and signal processing portions specific to the wireless interface, and the processing component 2222 may further include one or more processors.
One of the processors in the processing component 2222 may be configured to perform the channel access method described in any of the originating device sides above.
Of course, the originating device may also be a terminal, which is not limited by this disclosure.
Accordingly, the present disclosure also provides a communication apparatus comprising:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to execute the channel access method of any of the receiving device sides.
Fig. 23 is a block diagram illustrating an electronic device 2300, according to an example embodiment. The electronic device may be a terminal serving as a receiving device, for example, the electronic device 2300 may be a mobile phone, a tablet computer, an electronic book reader, a multimedia playing device, a wearable device, a vehicle-mounted terminal, an ipad, a smart television, or the like.
Referring to fig. 23, electronic device 2300 may include one or more of the following components: a processing component 2302, a memory 2304, a power component 2306, a multimedia component 2308, an audio component 2310, an input/output (I/O) interface 2312, a sensor component 2316, and a channel access component 2318.
The processing component 2302 generally controls overall operations of the electronic device 2300, such as operations associated with display, phone calls, data channel access, camera operations, and recording operations. The processing components 2302 may include one or more processors 2320 to execute instructions to perform all or portions of the steps of the channel access methods described above. Further, the processing component 2302 can include one or more modules that facilitate interaction between the processing component 2302 and other components. For example, the processing component 2302 can include a multimedia module to facilitate interaction between the multimedia component 2308 and the processing component 2302. As another example, the processing component 2302 may read executable instructions from a memory to implement the steps of one channel access method provided by the various embodiments described above.
The memory 2304 is configured to store various types of data to support operations at the electronic device 2300. Examples of such data include instructions for any application or method operating on electronic device 2300, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 2304 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.
The power supply component 2306 provides power to the various components of the electronic device 2300. The power components 2306 can include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the electronic device 2300.
The multimedia component 2308 includes a display screen that provides an output interface between the electronic device 2300 and a user. In some embodiments, the multimedia component 2308 includes a front camera and/or a rear camera. The front camera and/or the rear camera may receive external multimedia data when the electronic device 2300 is in an operation mode, such as a photographing mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.
The audio component 2310 is configured to output and/or input audio signals. For example, the audio assembly 2310 includes a Microphone (MIC) configured to receive external audio signals when the electronic device 2300 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 2304 or transmitted via the channel access component 2318. In some embodiments, the audio assembly 2310 further includes a speaker for outputting audio signals.
The I/O interface 2312 provides an interface between the processing element 2302 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.
The sensor assembly 2316 includes one or more sensors for providing status assessment of various aspects to the electronic device 2300. For example, the sensor assembly 2316 may detect the open/closed state of the electronic device 2300, the relative positioning of components, such as a display and keypad of the electronic device 2300, the sensor assembly 2316 may also detect a change in position of the electronic device 2300 or a component of the electronic device 2300, the presence or absence of user contact with the electronic device 2300, orientation or acceleration/deceleration of the electronic device 2300, and a change in temperature of the electronic device 2300. The sensor assembly 2316 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 2316 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 2316 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The channel access component 2318 is configured to facilitate channel access between the electronic device 2300 and other devices in a wired or wireless manner. Electronic device 2300 can access a wireless network based on a channel access standard, such as Wi-Fi, 2G, 3G, 4G, 5G, or 6G, or a combination thereof. In an exemplary embodiment, the channel access component 2318 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the channel access component 2318 further includes a near field channel access (NFC) module to facilitate short range channel access. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, the electronic device 2300 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described channel access methods.
In an exemplary embodiment, a non-transitory machine-readable storage medium comprising instructions, such as the memory 2304, that are executable by the processor 2320 of the electronic device 2300 to perform the wireless charging method described above is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
Of course, the receiving end device may also be a base station, which is not limited in this disclosure.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (38)

  1. A channel access method, for an originating device, comprising:
    determining a first channel interference value, the first channel interference value determined by the originating device from a channel interference measurement;
    receiving a second channel interference value sent by a receiving end device, wherein the second channel interference value is determined by the receiving end device according to channel interference measurement;
    and determining whether to access a channel according to the first channel interference value and the second channel interference value.
  2. The method of claim 1, wherein the determining whether to access a channel according to the first channel interference value and the second channel interference value comprises:
    and determining an access channel under the condition that the first channel interference value is smaller than or equal to a first preset threshold value and the second channel interference value is smaller than or equal to a second preset threshold value.
  3. The method of claim 1, wherein the determining whether to access a channel according to the first channel interference value and the second channel interference value comprises:
    under the condition that the first channel interference value is larger than a first preset threshold value, a channel is not accessed; or
    And under the condition that the second channel interference value is greater than a second preset threshold value, not accessing the channel.
  4. The method of claim 1, wherein the determining whether to access a channel according to the first channel interference value and the second channel interference value comprises:
    and under the condition that the channel is within the effective time length corresponding to the second channel interference value, determining whether to access a channel according to the first channel interference value and the second channel interference value.
  5. The method of claim 4, further comprising:
    receiving an indication message, wherein the indication message is used for indicating the effective duration; or
    Determining the effective duration based on agreement; or
    And determining the effective duration based on a preset period corresponding to the second channel interference value.
  6. The method of claim 1, further comprising:
    and sending first indication information, wherein the first indication information is used for indicating the receiving end equipment to send the second channel interference value to the transmitting end equipment.
  7. The method of claim 1, further comprising:
    and sending second indication information, where the second indication information is used to indicate the receiving end device to send the second channel interference values corresponding to at least part of the sending beams one to the sending end device.
  8. The method of claim 7, wherein the determining whether to access a channel according to the first channel interference value and the second channel interference value comprises:
    determining a target channel interference value corresponding to a target transmission beam from the second channel interference values corresponding to the at least partial transmission beams one to one;
    and determining whether to access a channel through the target transmission beam according to the first channel interference value and the target channel interference value.
  9. The method of any of claims 1-8, wherein the originating device is a network device or the originating device is a terminal.
  10. A channel access method, wherein the method is used for a receiving device, and comprises:
    determining a second channel interference value, wherein the second channel interference value is determined by the receiving end equipment according to channel interference measurement;
    and sending the second channel interference value to the originating device.
  11. The method of claim 10, wherein sending the second channel interference value to a originating device comprises:
    and sending the second channel interference value to the originating device according to a preset period.
  12. The method of claim 10, further comprising:
    and receiving first indication information sent by the transmitting end equipment, wherein the first indication information is used for indicating the receiving end equipment to send the second channel interference value to the transmitting end equipment.
  13. The method of claim 10, wherein determining the second channel interference value comprises:
    second channel interference values are determined which correspond one-to-one to at least some of the transmit beams.
  14. The method of claim 13, wherein determining the second channel interference values in one-to-one correspondence with at least some of the transmit beams comprises:
    determining receiving beams corresponding to at least part of the transmitting beams;
    and determining second channel interference values in one-to-one correspondence with the at least part of the transmission beams, wherein the second channel interference values in one-to-one correspondence with the at least part of the transmission beams are determined by respectively performing channel interference measurement by adopting the receiving beams in one-to-one correspondence with the at least part of the transmission beams.
  15. The method of claim 13, further comprising:
    and receiving second indication information sent by the sending end device, wherein the second indication information is used for indicating the receiving end device to send second channel interference values corresponding to at least part of sending beams to the sending end device.
  16. The method of claim 13, further comprising:
    determining the at least partial transmit beam according to a protocol convention.
  17. The method according to any one of claims 10 to 16, wherein the receiving end device is a terminal, or wherein the receiving end device is a base station.
  18. A channel access apparatus, the apparatus being for an originating device, comprising:
    a processing module for determining a first channel interference value, the first channel interference value being determined by the originating device from a channel interference measurement;
    a receiving module, configured to receive a second channel interference value sent by a receiving end device, where the second channel interference value is determined by the receiving end device according to channel interference measurement;
    the processing module is further configured to determine whether to access a channel according to the first channel interference value and the second channel interference value.
  19. The apparatus of claim 18, wherein the processing module is further configured to determine an access channel if the first channel interference value is less than or equal to a first preset threshold value and the second channel interference value is less than or equal to a second preset threshold value.
  20. The apparatus of claim 18, wherein the processing module is further configured to not access a channel if the first channel interference value is greater than a first preset threshold value; or
    The processing module is further configured to not access a channel when the second channel interference value is greater than a second preset threshold value.
  21. The apparatus of claim 18, wherein the processing module is further configured to determine whether to access a channel according to the first channel interference value and the second channel interference value when the duration of validity corresponding to the second channel interference value is within the duration of validity.
  22. The apparatus of claim 21, wherein the receiving module is further configured to receive an indication message, and wherein the indication message is used to indicate the validity duration; or
    The processing module is further configured to determine the effective duration based on a protocol agreement; or
    The processing module is further configured to determine the effective duration based on a preset period corresponding to the second channel interference value.
  23. The apparatus of claim 18, further comprising:
    a sending module, configured to send first indication information, where the first indication information is used to indicate the receiving end device to send the second channel interference value to the sending end device.
  24. The apparatus of claim 18, further comprising:
    a sending module, configured to send second indication information, where the second indication information is used to indicate the receiving end device to send the second channel interference values corresponding to at least part of the sending beams one to the sending end device.
  25. The apparatus of claim 24, wherein the processing module is further configured to determine a target channel interference value corresponding to a target transmission beam among the second channel interference values corresponding to the at least some transmission beams in a one-to-one correspondence; and determining whether to access a channel through the target transmission beam according to the first channel interference value and the target channel interference value.
  26. The apparatus of any of claims 18-25, wherein the originating device is a network device or the originating device is a terminal.
  27. A channel access apparatus, wherein the apparatus is used for a receiving device, and the apparatus comprises:
    a processing module, configured to determine a second channel interference value, where the second channel interference value is determined by the receiving end device according to channel interference measurement;
    and the sending module is used for sending the second channel interference value to the sending-end equipment.
  28. The apparatus of claim 27, wherein the sending module is further configured to send the second channel interference value to the originating device according to a preset period.
  29. The apparatus of claim 27, further comprising:
    a receiving module, configured to receive first indication information sent by the originating device, where the first indication information is used to indicate the receiving device to send the second channel interference value to the originating device.
  30. The apparatus of claim 27, wherein the processing module is further configured to determine second channel interference values corresponding to at least some of the transmit beams in a one-to-one manner.
  31. The apparatus of claim 30, wherein the processing module is further configured to determine receive beams corresponding to at least some of the transmit beams one to one; and determining second channel interference values in one-to-one correspondence with the at least part of the transmission beams, wherein the second channel interference values in one-to-one correspondence with the at least part of the transmission beams are determined by respectively performing channel interference measurement by adopting the receiving beams in one-to-one correspondence with the at least part of the transmission beams.
  32. The apparatus of claim 30, further comprising:
    a receiving module, configured to receive second indication information sent by the originating device, where the second indication information is used to indicate the receiving device to send a second channel interference value corresponding to at least part of the sending beams one to the originating device.
  33. The apparatus of claim 27, wherein the processing module is further configured to determine the at least some transmit beams based on protocol conventions.
  34. The apparatus of any one of claims 27-33, wherein the receiving end device is a terminal, or wherein the receiving end device is a base station.
  35. A computer-readable storage medium, characterized in that the storage medium stores a computer program for executing the channel access method of any of the above claims 1-9.
  36. A computer-readable storage medium, characterized in that the storage medium stores a computer program for executing the channel access method of any of the preceding claims 10-17.
  37. A communications apparatus, comprising:
    a processor;
    a memory for storing processor-executable instructions;
    wherein the processor is configured to perform the channel access method of any of the preceding claims 1-9.
  38. A communications apparatus, comprising:
    a processor;
    a memory for storing processor-executable instructions;
    wherein the processor is configured to perform the channel access method of any of the preceding claims 10-17.
CN202180000248.6A 2021-01-14 2021-01-14 Channel access method and device and storage medium Pending CN115088376A (en)

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KR102247085B1 (en) * 2014-09-01 2021-04-30 삼성전자주식회사 Scheme for communcation in mobile communication system using unlicensed frequency band
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