CN117204108A

CN117204108A - Channel detection method and device, communication equipment, communication system and storage medium

Info

Publication number: CN117204108A
Application number: CN202380010214.4A
Authority: CN
Inventors: 李明菊
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2023-07-21
Filing date: 2023-07-21
Publication date: 2023-12-08

Abstract

The disclosure provides a channel detection method, a device, equipment and a storage medium, wherein the method comprises the following steps: the first device determining at least one target channel access mechanism; the first equipment carries out channel detection on spectrum resources corresponding to the reference signals based on the target channel access mechanism; wherein, the spectrum resource corresponding to the reference signal is a shared spectrum resource. The present disclosure provides a channel detection method for a shared spectrum resource, which is used for realizing successful detection of the shared spectrum resource, so as to realize successful transmission of a reference signal on the shared spectrum resource, and ensure accuracy of related services. For example, when the reference signal is a positioning purpose reference signal, successful transmission of the reference signal on the shared spectrum resource can achieve improvement of positioning purpose reference signal measurement accuracy, and further improve positioning accuracy.

Description

Channel detection method and device, communication equipment, communication system and storage medium

Technical Field

The disclosure relates to the field of communication technologies, and in particular, to a channel detection method and device, a communication system, and a storage medium.

Background

In a communication system, it is often necessary to transmit positioning-purpose reference signals for positioning measurements.

Disclosure of Invention

The disclosure provides a channel detection method and device, a communication system and a storage medium.

According to a first aspect of an embodiment of the present disclosure, a channel detection method is provided, including: the first device determining at least one target channel access mechanism; the first equipment carries out channel detection on spectrum resources corresponding to the reference signals based on the target channel access mechanism; wherein, the spectrum resource corresponding to the reference signal is a shared spectrum resource.

According to a second aspect of an embodiment of the present disclosure, a channel detection method is provided, including: the third device sends indication information to the first device, wherein the indication information is used for determining at least one target channel access mechanism; the target channel access mechanism is used for carrying out channel detection on spectrum resources corresponding to the reference signals; wherein, the spectrum resource corresponding to the reference signal is a shared spectrum resource.

According to a third aspect of the embodiments of the present disclosure, a channel detection method is provided, which is applied to a communication system, where the communication system includes a first device and a third device, and the method includes at least one of the following: the third device sends indication information to the first device, wherein the indication information is used for determining at least one target channel access mechanism; the target channel access mechanism is used for carrying out channel detection on spectrum resources corresponding to the reference signals; wherein, the spectrum resource corresponding to the reference signal is shared spectrum resource; the first device determining at least one target channel access mechanism; the first equipment carries out channel detection on spectrum resources corresponding to the reference signals based on the target channel access mechanism; wherein, the spectrum resource corresponding to the reference signal is shared spectrum resource; the first device transmits a reference signal on a first channel, the first channel comprising a channel successfully accessed by the first device through the target channel access mechanism.

According to a fourth aspect of embodiments of the present disclosure, there is provided a first device comprising: a processing module for determining at least one target channel access mechanism; the processing module is further configured to perform channel detection on a spectrum resource corresponding to the reference signal by using the target channel access mechanism; wherein, the spectrum resource corresponding to the reference signal is a shared spectrum resource.

According to a fifth aspect of embodiments of the present disclosure, there is provided a third apparatus comprising: a sending module, configured to send indication information to a first device, where the indication information is used to determine at least one target channel access mechanism; the target channel access mechanism is used for carrying out channel detection on spectrum resources corresponding to the reference signals; wherein, the spectrum resource corresponding to the reference signal is a shared spectrum resource.

According to a sixth aspect of the embodiments of the present disclosure, there is provided a communication device, including: one or more processors; the processor is configured to invoke instructions to cause the communication device to execute the channel detection method according to any one of the first aspect and the second aspect.

According to a seventh aspect of the embodiments of the present disclosure, a communication system is provided, which is characterized by comprising a first device and a third device, where the terminal is configured to implement the channel detection method described in the first aspect, and the first device is configured to implement the channel detection method described in the second aspect.

According to an eighth aspect of an embodiment of the present disclosure, a storage medium is provided, where the storage medium stores instructions, wherein the instructions, when executed on a communication device, cause the communication device to perform the channel detection method according to any one of the first aspect and the second aspect.

Drawings

The foregoing and/or additional aspects and advantages of the present disclosure will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

fig. 1 is a schematic architecture diagram of some communication systems provided in embodiments of the present disclosure;

fig. 2A is an interactive schematic diagram of a channel detection method according to an embodiment of the disclosure;

fig. 3A-3B are schematic flow diagrams of a channel detection method according to still another embodiment of the present disclosure;

fig. 4A is a flowchart illustrating a channel detection method according to still another embodiment of the present disclosure;

fig. 5 is a flowchart of a channel detection method according to still another embodiment of the present disclosure;

FIG. 6A is a schematic diagram of a first device according to one embodiment of the present disclosure;

FIG. 6B is a schematic diagram of a third apparatus according to one embodiment of the present disclosure;

FIG. 7A is a schematic diagram of a communication device according to one embodiment of the present disclosure;

Fig. 7B is a schematic structural diagram of a chip according to an embodiment of the disclosure.

Detailed Description

The embodiment of the disclosure provides a channel detection method and device, communication equipment, a communication system and a storage medium.

In a first aspect, an embodiment of the present disclosure proposes a channel detection method, performed by a first device, the method including:

the first device determining at least one target channel access mechanism;

the first equipment carries out channel detection on spectrum resources corresponding to the reference signals based on the target channel access mechanism; wherein, the spectrum resource corresponding to the reference signal is a shared spectrum resource.

In the above embodiment, the first device determines at least one target channel access mechanism, which is configured to perform channel detection on a shared spectrum resource corresponding to the reference signal, so as to send the reference signal on the idle resource when detecting that the channel is idle, thereby implementing successful transmission of the reference signal on the shared spectrum resource. It can be seen that the present disclosure provides a channel detection method for a shared spectrum resource, which is used for implementing successful detection of the shared spectrum resource, so as to implement successful transmission of a reference signal on the shared spectrum resource, thereby ensuring accuracy of related services. For example, when the reference signal is a positioning purpose reference signal, successful transmission of the reference signal on the shared spectrum resource can achieve improvement of positioning purpose reference signal measurement accuracy, and further improve positioning accuracy.

With reference to some embodiments of the first aspect, in some embodiments, the target channel access mechanism includes a first type of channel access mechanism, a second type of channel access mechanism, or a third type of channel access mechanism;

the channel detection required length of the first type of channel access mechanism is greater than or equal to the channel detection required length of the second type of channel access mechanism, and the channel detection required length of the second type of channel access mechanism is greater than the channel detection required length of the third type of channel access mechanism.

In the above embodiment, one or more channel access mechanisms with different durations required for channel detection are provided, so that at least one target channel access mechanism for channel detection of the shared spectrum resource is selected from the one or more channel access mechanisms, thereby realizing successful channel detection of the shared spectrum resource.

With reference to some embodiments of the first aspect, in some embodiments, the method further includes:

the first device determines a spectrum resource corresponding to the reference signal.

the first device determines at least one bandwidth unit included in the spectrum resource.

With reference to some embodiments of the first aspect, in some embodiments, the spectrum resource includes at least two bandwidth units, the target channel access mechanism is one, and the one target channel access mechanism is used for the at least two bandwidth units;

the spectrum resource comprises one bandwidth unit, the target channel access mechanism is one, and the target channel access mechanism is used for the one bandwidth unit.

In the above embodiment, when determining the target channel access mechanism, the first device may determine a same target channel access mechanism for different bandwidth units, or may determine a target channel access mechanism for the entire spectrum resource, thereby defining a method how to determine the target channel access mechanism, so as to ensure that the first device may successfully detect the shared spectrum resource based on the determined target channel access mechanism. In addition, in the above embodiment, the method of determining a target channel access mechanism for the entire spectrum resource can also ensure that the bandwidth of the finally detected success (such as LBT success) is as wide and continuous as possible, thereby ensuring the subsequent transmission efficiency of the reference signal and improving the accuracy of the related service.

With reference to some embodiments of the first aspect, in some embodiments, the determining at least one target channel access mechanism includes:

a target channel access mechanism is determined based on the period of the reference signal.

With reference to some embodiments of the first aspect, in some embodiments, the determining a target channel access mechanism based on a period of the reference signal includes at least one of:

determining the first type of channel access mechanism as the target channel access mechanism, wherein the period of the reference signal is smaller than or equal to a first value; or determining the second type of channel access mechanism as the target channel access mechanism, wherein the period of the reference signal is larger than a first value.

In the above embodiment, when determining the target channel access mechanism, the first device determines based on the period of the reference signal, where the period of the reference signal is inversely proportional to the channel detection time of the target access mechanism, that is, a looser channel access mechanism is used for the reference signal with a long period, so that the detection idle probability can be improved, and the success rate of channel access is ensured.

The spectrum resource comprises at least two bandwidth units, and at least two target channel access mechanisms are determined; the at least two target channel access mechanisms are for different bandwidth units.

With reference to some embodiments of the first aspect, in some embodiments, the target channel access mechanisms are two, the channel detection needs of the two target channel access mechanisms are different in duration, a target channel access mechanism with a longest channel detection need of the two target channel access mechanisms is used for a first bandwidth unit, a target channel access mechanism with a shortest channel detection need of the two target channel access mechanisms is used for a second bandwidth unit, and a target channel access mechanism with a longest channel detection need of the two target channel access mechanisms is also used for a third bandwidth unit; wherein the first bandwidth unit is any one of the at least one bandwidth unit, the second bandwidth unit is a bandwidth unit immediately adjacent to the first bandwidth unit, and the third bandwidth unit is a bandwidth unit other than the first bandwidth unit and the second bandwidth unit;

the number of the target channel access mechanisms is two, the time lengths required by channel detection of the two target channel access mechanisms are different, the target channel access mechanism with the longest time length required by channel detection in the two target channel access mechanisms is used for a first bandwidth unit, and the target channel access mechanism with the shortest time length required by channel detection in the two target channel access mechanisms is used for a second bandwidth unit; wherein the first bandwidth unit is any one of the at least one bandwidth unit, and the second bandwidth unit is a bandwidth unit other than the first bandwidth unit;

The three target channel access mechanisms are three, the time lengths required by channel detection of the three target channel access mechanisms are different, the target channel access mechanism with the longest time length required by channel detection in the three target channel access mechanisms is used for a first bandwidth unit, the target channel access mechanism with the shortest time length required by channel detection in the three target channel access mechanisms is used for a second bandwidth unit, and the target channel access mechanism with the time length required by channel detection in the three target channel access mechanisms between the shortest and longest time lengths is used for a third bandwidth unit; wherein the first bandwidth unit is any one of the at least one bandwidth unit, the second bandwidth unit is a bandwidth unit immediately adjacent to the first bandwidth unit, and the third bandwidth unit is a bandwidth unit other than the first bandwidth unit and the second bandwidth unit.

In the above embodiment, a method how to determine the target channel access mechanism is defined, where the first device may determine at least two target channel access mechanisms to perform channel detection on different bandwidth units in the spectrum resource by using the at least two target channel access mechanisms, so as to ensure that the first device may successfully determine the target channel access mechanism for performing channel detection on the shared spectrum resource, and ensure successful channel detection on the shared spectrum resource. In the above embodiment, when determining at least two target channel access mechanisms, the first device may make the channel detection required lengths of different target channel access mechanisms different, and may further make the target channel access mechanism with the longest channel detection required length be used for the first bandwidth unit, and the target channel access mechanism with the shortest channel detection required length be used for the second bandwidth unit adjacent to the first bandwidth unit, so as to ensure that the bandwidth that is finally detected successfully (e.g. LBT successfully) is as wide and continuous as possible, ensure the subsequent transmission efficiency of the reference signal, and improve the accuracy of the related service.

With reference to some embodiments of the first aspect, in some embodiments, the second device initiates channel sharing to the first device, and the determining at least one target channel access mechanism includes at least one of:

the first time interval is smaller than the second value, the time domain length occupied by the reference signal is smaller than or equal to N symbols, N is a positive integer, and a third type of channel access mechanism is determined as the target channel access mechanism; wherein, the first time interval is: a time interval between a time the first device transmits a reference signal and a time the first device receives a transmission of the second device;

the first time interval is larger than or equal to the second value and smaller than the third value, and the second type of channel access mechanism is determined as the target channel access mechanism;

and the first time interval is larger than or equal to a third value, and the first type of channel access mechanism is determined as the target channel access mechanism.

In the above embodiment, when the second device initiates channel sharing to the first device, the first device may determine the target channel access mechanism based on a time interval between when the first device transmits the reference signal and when the first device receives the transmission of the second device, where the smaller the time interval is, the smaller the duration required for channel detection of the determined target channel access mechanism (i.e., the smaller the time interval is, the more loose the detection strength of the target channel access mechanism is adopted), so that the channel detection success rate may be improved.

With reference to some embodiments of the first aspect, in some embodiments, the first type of channel access mechanism is contention window CW based channel detection;

the second type channel access mechanism is single channel detection;

the third type of channel access mechanism is not used for channel detection.

With reference to some embodiments of the first aspect, in some embodiments, the second type of channel access mechanism includes at least one of a first channel access mechanism and a second channel access mechanism;

the first channel access mechanism includes: detecting the idle channel in a first duration, and considering that the detection is successful;

the second channel access mechanism includes: detecting the idle channel in the second time period, and considering that the detection is successful;

wherein the first time period is longer than the second time period.

With reference to some embodiments of the first aspect, in some embodiments, the reference signal includes at least one of: positioning reference signals PRS;

sounding reference signals, SRS, for positioning; side uplink SL PRS; SL SRS for positioning.

And receiving indication information sent by the third equipment, wherein the indication information is used for determining at least one target channel access mechanism.

In a second aspect, an embodiment of the present disclosure proposes a channel detection method, performed by a first device, including:

the third device sends indication information to the first device, wherein the indication information is used for determining at least one target channel access mechanism; the target channel access mechanism is used for carrying out channel detection on spectrum resources corresponding to the reference signals; wherein, the spectrum resource corresponding to the reference signal is a shared spectrum resource.

In the above embodiment, the third device sends, to the first device, indication information, where the indication information is used to determine at least one target channel access mechanism, and the target channel access mechanism is used to perform channel detection on a shared spectrum resource corresponding to the reference signal, so that when a channel is detected to be idle, the reference signal is sent on the idle resource, so as to implement successful transmission of the reference signal on the shared spectrum resource. It can be seen that the present disclosure provides a channel detection method for a shared spectrum resource, which is used for implementing successful detection of the shared spectrum resource, so as to implement successful transmission of a reference signal on the shared spectrum resource, thereby ensuring accuracy of related services. For example, when the reference signal is a positioning purpose reference signal, successful transmission of the reference signal on the shared spectrum resource can achieve improvement of positioning purpose reference signal measurement accuracy, and further improve positioning accuracy.

With reference to some embodiments of the second aspect, in some embodiments, the target channel access mechanism includes a first type of channel access mechanism, a second type of channel access mechanism, or a third type of channel access mechanism;

With reference to some embodiments of the second aspect, in some embodiments, the indication information is used to determine at least one target channel access mechanism, including any one of:

the spectrum resource comprises at least two bandwidth units, the indication information is used for determining a target channel access mechanism, and the target channel access mechanism is used for the at least two bandwidth units;

the spectrum resource comprises a bandwidth unit, the indication information is used for determining a target channel access mechanism, and the target channel access mechanism is used for the bandwidth unit.

With reference to some embodiments of the second aspect, in some embodiments, the indicating information is used to determine at least one target channel access mechanism, including:

The spectrum resource comprises at least two bandwidth units, and the indication information is used for determining at least two target channel access mechanisms; the at least two target channel access mechanisms are for different bandwidth units.

With reference to some embodiments of the second aspect, in some embodiments, the indication information is used to determine at least two target channel access mechanisms, including at least one of:

the indication information is used for determining two target channel access mechanisms, the time lengths required by channel detection of the two target channel access mechanisms are different, the target channel access mechanism with the longest time length required by channel detection in the two target channel access mechanisms is used for a first bandwidth unit, the target channel access mechanism with the shortest time length required by channel detection in the two target channel access mechanisms is used for a second bandwidth unit, and the target channel access mechanism with the longest time length required by channel detection in the two target channel access mechanisms is also used for a third bandwidth unit; wherein the first bandwidth unit is any one of the at least one bandwidth unit, the second bandwidth unit is a bandwidth unit immediately adjacent to the first bandwidth unit, and the third bandwidth unit is a bandwidth unit other than the first bandwidth unit and the second bandwidth unit;

The indication information is used for determining two target channel access mechanisms, the time lengths required by channel detection of the two target channel access mechanisms are different, the target channel access mechanism with the longest time length required by channel detection in the two target channel access mechanisms is used for a first bandwidth unit, and the target channel access mechanism with the shortest time length required by channel detection in the two target channel access mechanisms is used for a second bandwidth unit; wherein the first bandwidth unit is any one of the at least one bandwidth unit, and the second bandwidth unit is a bandwidth unit other than the first bandwidth unit;

the indication information is used for determining three target channel access mechanisms, the time lengths required by channel detection of the three target channel access mechanisms are different, the target channel access mechanism with the longest time length required by channel detection in the three target channel access mechanisms is used for a first bandwidth unit, the target channel access mechanism with the shortest time length required by channel detection in the three target channel access mechanisms is used for a second bandwidth unit, and the target channel access mechanism with the time length required by channel detection in the three target channel access mechanisms is between the shortest and longest is used for a third bandwidth unit; wherein the first bandwidth unit is any one of the at least one bandwidth unit, the second bandwidth unit is a bandwidth unit immediately adjacent to the first bandwidth unit, and the third bandwidth unit is a bandwidth unit other than the first bandwidth unit and the second bandwidth unit.

With reference to some embodiments of the second aspect, in some embodiments, the first type of channel access mechanism is CW-based channel detection;

the second type channel access mechanism is single channel detection;

the third type of channel access mechanism is not used for channel detection.

With reference to some embodiments of the second aspect, in some embodiments, the second type of channel access mechanism includes at least one of a first channel access mechanism and a second channel access mechanism;

wherein the first time period is longer than the second time period.

With reference to some embodiments of the second aspect, in some embodiments, the reference signal includes at least one of: PRS; SRS for positioning; SL PRS; SL SRS for positioning.

In a third aspect, an embodiment of the present disclosure proposes a channel detection method, applied to a communication system, where the communication system includes a first device and a third device, the method includes at least one of:

The third device sends at least one target channel access mechanism to the first device; the target channel access mechanism is used for carrying out channel detection on spectrum resources corresponding to the reference signals; wherein, the spectrum resource corresponding to the reference signal is shared spectrum resource;

the first device determining at least one target channel access mechanism;

the first equipment carries out channel detection on spectrum resources corresponding to the reference signals based on the target channel access mechanism; wherein, the spectrum resource corresponding to the reference signal is shared spectrum resource;

the first device transmits a reference signal on a first channel, the first channel comprising a channel successfully accessed by the first device through the target channel access mechanism.

In a fourth aspect, embodiments of the present disclosure provide a first device, including:

a processing module for determining at least one target channel access mechanism;

the processing module is further configured to perform channel detection on a spectrum resource corresponding to the reference signal by using the target channel access mechanism; wherein, the spectrum resource corresponding to the reference signal is a shared spectrum resource.

With reference to some embodiments of the fourth aspect, in some embodiments, the target channel access mechanism includes a first type of channel access mechanism, a second type of channel access mechanism, or a third type of channel access mechanism;

With reference to some embodiments of the fourth aspect, in some embodiments, the apparatus is further for:

With reference to some embodiments of the fourth aspect, in some embodiments, the spectrum resource includes at least two bandwidth units, the target channel access mechanism is one, and the one target channel access mechanism is used for the at least two bandwidth units;

With reference to some embodiments of the fourth aspect, in some embodiments, the processing module is further configured to:

With reference to some embodiments of the fourth aspect, in some embodiments, the processing module is further configured to at least one of:

With reference to some embodiments of the fourth aspect, in some embodiments, the target channel access mechanisms are two, the channel detection needs of the two target channel access mechanisms are different in duration, a target channel access mechanism with a longest channel detection need of the two target channel access mechanisms is used for a first bandwidth unit, a target channel access mechanism with a shortest channel detection need of the two target channel access mechanisms is used for a second bandwidth unit, and a target channel access mechanism with a longest channel detection need of the two target channel access mechanisms is also used for a third bandwidth unit; wherein the first bandwidth unit is any one of the at least one bandwidth unit, the second bandwidth unit is a bandwidth unit immediately adjacent to the first bandwidth unit, and the third bandwidth unit is a bandwidth unit other than the first bandwidth unit and the second bandwidth unit;

With reference to some embodiments of the fourth aspect, in some embodiments, the second device initiates channel sharing to the first device, and the processing module is further configured to at least one of:

With reference to some embodiments of the fourth aspect, in some embodiments, the first type of channel access mechanism is contention window CW based channel detection;

the second type channel access mechanism is single channel detection;

the third type of channel access mechanism is not used for channel detection.

With reference to some embodiments of the fourth aspect, in some embodiments, the second type of channel access mechanism includes at least one of a first channel access mechanism and a second channel access mechanism;

wherein the first time period is longer than the second time period.

With reference to some embodiments of the fourth aspect, in some embodiments, the reference signal includes at least one of: positioning reference signals PRS; sounding reference signals, SRS, for positioning; side uplink SL PRS; SL SRS for positioning.

In a fifth aspect, embodiments of the present disclosure provide a third apparatus, including:

a transmitting module, configured to transmit at least one target channel access mechanism to a first device; the target channel access mechanism is used for carrying out channel detection on spectrum resources corresponding to the reference signals; wherein, the spectrum resource corresponding to the reference signal is a shared spectrum resource.

With reference to some embodiments of the fifth aspect, in some embodiments, the target channel access mechanism includes a first type of channel access mechanism, a second type of channel access mechanism, or a third type of channel access mechanism;

With reference to some embodiments of the fifth aspect, in some embodiments, the indication information is used to determine at least one target channel access mechanism, including any one of the following:

With reference to some embodiments of the fifth aspect, in some embodiments, the indicating information is used to determine at least one target channel access mechanism, including:

With reference to some embodiments of the fifth aspect, in some embodiments, the indication information is used to determine at least two target channel access mechanisms, including at least one of:

With reference to some embodiments of the fifth aspect, in some embodiments, the first type of channel access mechanism is CW-based channel detection;

the second type channel access mechanism is single channel detection;

the third type of channel access mechanism is not used for channel detection.

With reference to some embodiments of the fifth aspect, in some embodiments, the second type of channel access mechanism includes at least one of a first channel access mechanism and a second channel access mechanism;

wherein the first time period is longer than the second time period.

With reference to some embodiments of the fifth aspect, in some embodiments, the reference signal includes at least one of: PRS; SRS for positioning; SL PRS; SL SRS for positioning.

In a sixth aspect, embodiments of the present disclosure provide a communication device, including: one or more processors; one or more memories for storing instructions; wherein the processor is configured to invoke the instructions to cause the communication device to perform the channel detection method as described in the first and second aspects, and optional implementations of the first and second aspects.

In a seventh aspect, embodiments of the present disclosure provide a communication system, including: a first device, a third device; wherein the terminal is configured to perform the method as described in the first aspect and the alternative implementation of the first aspect, and the first device is configured to perform the method as described in the second aspect and the alternative implementation of the second aspect.

In an eighth aspect, embodiments of the present disclosure provide a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform a method as described in the first aspect, the alternative implementation manner of the first aspect, the second aspect, and the alternative implementation manner of the second aspect.

In a ninth aspect, embodiments of the present disclosure propose a program product which, when executed by a communication device, causes the communication device to perform a method as described in the first aspect, the alternative implementation manner of the first aspect, the second aspect and the alternative implementation manner of the second aspect.

In a tenth aspect, embodiments of the present disclosure propose a computer program which, when run on a computer, causes the computer to carry out the method as described in the first aspect, the alternative implementation manner of the first aspect, the second aspect and the alternative implementation manner of the second aspect.

It will be appreciated that the first device, the third device, the communication system, the storage medium, the program product, the computer program described above are all configured to perform the methods proposed by the embodiments of the present disclosure. Therefore, the advantages achieved by the method can be referred to as the advantages of the corresponding method, and will not be described herein.

The embodiments of the present disclosure present the invention names. In some embodiments, terms of the channel detection method and the information processing method, the information transmission method, the information receiving method, and the like may be replaced with each other, terms of the communication device and the information processing device, the information transmission device, the information receiving device, and the like may be replaced with each other, and terms of the information processing system, the communication system, the information transmission system, the information receiving system, and the like may be replaced with each other.

The embodiments of the present disclosure are not intended to be exhaustive, but rather are exemplary of some embodiments and are not intended to limit the scope of the disclosure. In the case of no contradiction, each step in a certain embodiment may be implemented as an independent embodiment, and the steps may be arbitrarily combined, for example, a scheme in which part of the steps are removed in a certain embodiment may also be implemented as an independent embodiment, the order of the steps in a certain embodiment may be arbitrarily exchanged, and further, alternative implementations in a certain embodiment may be arbitrarily combined; furthermore, various embodiments may be arbitrarily combined, for example, some or all steps of different embodiments may be arbitrarily combined, and an embodiment may be arbitrarily combined with alternative implementations of other embodiments.

In the various embodiments of the disclosure, terms and/or descriptions of the various embodiments are consistent throughout the various embodiments and may be referenced to each other in the absence of any particular explanation or logic conflict, and features from different embodiments may be combined to form new embodiments in accordance with their inherent logic relationships.

The terminology used in the embodiments of the disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure.

In the presently disclosed embodiments, elements that are referred to in the singular, such as "a," "an," "the," "said," etc., may mean "one and only one," or "one or more," "at least one," etc., unless otherwise indicated. For example, where an article (article) is used in translation, such as "a," "an," "the," etc., in english, a noun following the article may be understood as a singular expression or as a plural expression.

In the presently disclosed embodiments, "plurality" refers to two or more.

In some embodiments, terms such as "at least one of", "one or more of", "multiple of" and the like may be substituted for each other.

Description modes such as at least one of A, B, C … …, A and/or B and/or C … … include any single case of A, B, C … … and any combination case of any plurality of A, B, C … …, and each case may exist independently; for example, "at least one of A, B, C" includes the cases of a alone, B alone, C, A and B in combination, a and C in combination, B and C in combination, a and B and C in combination; for example, a and/or B includes the case of a alone, a combination of a alone B, A and B.

In some embodiments, "in a case a, in another case B", "in response to a case a", "in response to another case B", and the like, the following technical solutions may be included according to the circumstances: a is performed independently of B, i.e., a in some embodiments; b is performed independently of a, i.e., in some embodiments B; a and B are selectively performed, i.e., in some embodiments selected from a and B; both a and B are performed, i.e., a and B in some embodiments. Similar to that described above when there are more branches such as A, B, C.

The prefix words "first", "second", etc. in the embodiments of the present disclosure are only for distinguishing different description objects, and do not limit the location, order, priority, number, content, etc. of the description objects, and the statement of the description object refers to the claims or the description of the embodiment context, and should not constitute unnecessary limitations due to the use of the prefix words. For example, if the description object is a "field", the ordinal words before the "field" in the "first field" and the "second field" do not limit the position or the order between the "fields", and the "first" and the "second" do not limit whether the "fields" modified by the "first" and the "second" are in the same message or not. For another example, describing an object as "level", ordinal words preceding "level" in "first level" and "second level" do not limit priority between "levels". As another example, the number of descriptive objects is not limited by ordinal words, and may be one or more, taking "first device" as an example, where the number of "devices" may be one or more. Furthermore, objects modified by different prefix words may be the same or different, e.g., the description object is "a device", then "a first device" and "a second device" may be the same device or different devices, and the types may be the same or different; for another example, the description object is "information", and the "first information" and the "second information" may be the same information or different information, and the contents thereof may be the same or different.

In some embodiments, "comprising a", "containing a", "for indicating a", "carrying a", may be interpreted as carrying a directly, or as indicating a indirectly.

In some embodiments, terms "responsive to … …", "responsive to determination … …", "in the case of … …", "at … …", "when … …", "if … …", "if … …", and the like may be interchanged.

In some embodiments, terms "greater than", "greater than or equal to", "not less than", "more than or equal to", "not less than", "above" and the like may be interchanged, and terms "less than", "less than or equal to", "not greater than", "less than or equal to", "not more than", "below", "lower than or equal to", "no higher than", "below" and the like may be interchanged.

In some embodiments, an apparatus or the like may be interpreted as an entity, or may be interpreted as a virtual, and the names thereof are not limited to the names described in the embodiments, "apparatus," "device," "circuit," "network element," "node," "function," "unit," "section," "system," "network," "chip system," "entity," "body," and the like may be replaced with each other.

In some embodiments, a "network" may be interpreted as an apparatus (e.g., access network device, core network device, etc.) contained in a network.

In some embodiments, "access network device (access network device, AN device)", "radio access network device (radio access network device, RAN device)", "Base Station (BS)", "radio base station (radio base station)", "fixed station (fixed station)", "node (node)", "access point (access point)", "transmit point (transmission point, TP)", "Receive Point (RP)", "transmit receive point (transmit/receive point), the terms TRP), panel, antenna array, cell, macrocell, microcell, femtocell, sector, cell group, carrier, component carrier, bandwidth part, BWP, etc. may be replaced with each other.

In some embodiments, "terminal," terminal device, "" user equipment, "" user terminal, "" mobile station, "" mobile terminal, MT) ", subscriber station (subscriber station), mobile unit (mobile unit), subscriber unit (subscriber unit), wireless unit (wireless unit), remote unit (remote unit), mobile device (mobile device), wireless device (wireless device), wireless communication device (wireless communication device), remote device (remote device), mobile subscriber station (mobile subscriber station), access terminal (access terminal), mobile terminal (mobile terminal), wireless terminal (wireless terminal), remote terminal (remote terminal), handheld device (handset), user agent (user agent), mobile client (mobile client), client (client), and the like may be substituted for each other.

In some embodiments, the access network device, core network device, or network device may be replaced with a terminal. For example, the embodiments of the present disclosure may be applied to a configuration in which communication between an access network device, a core network device, or a network device and a terminal is replaced with communication between a plurality of terminals (for example, may also be referred to as device-to-device (D2D), vehicle-to-device (V2X), or the like). In this case, the terminal may have all or part of the functions of the access network device. Further, the language such as "uplink" and "downlink" may be replaced with a language (for example, "side") corresponding to the communication between terminals. For example, uplink channels, downlink channels, etc. may be replaced with side-uplink channels, uplink, downlink, etc. may be replaced with side-downlink channels.

In some embodiments, the terminal may be replaced with an access network device, a core network device, or a network device. In this case, the access network device, the core network device, or the network device may have all or part of the functions of the terminal.

In some embodiments, the acquisition of data, information, etc. may comply with laws and regulations of the country of locale.

In some embodiments, data, information, etc. may be obtained after user consent is obtained.

Furthermore, each element, each row, or each column in the tables of the embodiments of the present disclosure may be implemented as a separate embodiment, and any combination of elements, any rows, or any columns may also be implemented as a separate embodiment.

The correspondence relationships shown in the tables in the present disclosure may be configured or predefined. The values of the information in each table are merely examples, and may be configured as other values, and the present disclosure is not limited thereto. In the case of the correspondence between the configuration information and each parameter, it is not necessarily required to configure all the correspondence shown in each table. For example, in the table in the present disclosure, the correspondence shown by some rows may not be configured. For another example, appropriate morphing adjustments, e.g., splitting, merging, etc., may be made based on the tables described above. The names of the parameters indicated in the tables may be other names which are understood by the communication device, and the values or expressions of the parameters may be other values or expressions which are understood by the communication device. When the tables are implemented, other data structures may be used, for example, an array, a queue, a container, a stack, a linear table, a pointer, a linked list, a tree, a graph, a structure, a class, a heap, a hash table, or a hash table.

Predefined in this disclosure may be understood as defining, predefining, storing, pre-negotiating, pre-configuring, curing, or pre-sintering.

Fig. 1 is a schematic architecture diagram of a communication system shown in accordance with an embodiment of the present disclosure. As shown in fig. 1, the communication system 100 may be at least one of a first device 101, a third device 102. Wherein the first device may be a reference signal transmitting end, optionally, when the reference signal is a positioning reference signal (positioning reference signal, PRS), the first device may be an access network device (e.g., a base station and/or a transmission-reception point (transmission reception point, TRP)); when the reference signal is at least one of a sounding reference signal (sounding reference signal, SRS), a Sidelink (SL) PRS, a SL SRS, the first device may be a terminal (terminal) or a reference positioning unit (Positioning Reference Unit, PRU); alternatively, the third device may be at least one of a terminal, an access network device, a core network device (e.g., a location management function (Location Management Function, LMF)), a PRU.

In some embodiments, the terminal includes at least one of a mobile phone (mobile phone), a wearable device, an internet of things device, a communication enabled car, a smart car, a tablet (Pad), a computer with wireless transceiving functionality, a Virtual Reality (VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in unmanned (self-driving), a wireless terminal device in teleoperation (remote medical surgery), a wireless terminal device in smart grid (smart grid), a wireless terminal device in transportation security (transportation safety), a wireless terminal device in smart city (smart city), a wireless terminal device in smart home (smart home), for example, but is not limited thereto.

In some embodiments, the access network device is, for example, a node or device that accesses a terminal to a wireless network, and the access network device may include at least one of an evolved NodeB (eNB), a next generation evolved NodeB (next generation eNB, ng-eNB), a next generation NodeB (next generation NodeB, gNB), a NodeB (node B, NB), a Home NodeB (HNB), a home NodeB (home evolved nodeB, heNB), a wireless backhaul device, a radio network controller (radio network controller, RNC), a base station controller (base station controller, BSC), a base transceiver station (base transceiver station, BTS), a baseband unit (BBU), a mobile switching center, a base station in a 6G communication system, an Open base station (Open RAN), a Cloud base station (Cloud RAN), a base station in other communication systems, a wireless fidelity (wireless fidelity, wiFi) system, but is not limited thereto.

In some embodiments, the technical solutions of the present disclosure may be applied to an Open RAN architecture, where an access network device or an interface in an access network device according to the embodiments of the present disclosure may become an internal interface of the Open RAN, and flow and information interaction between these internal interfaces may be implemented by using software or a program.

In some embodiments, the access network device may be composed of a Central Unit (CU) and a Distributed Unit (DU), where the CU may also be referred to as a control unit (control unit), and the structure of the CU-DU may be used to split the protocol layers of the access network device, where functions of part of the protocol layers are centrally controlled by the CU, and functions of the rest of all the protocol layers are distributed in the DU, and the DU is centrally controlled by the CU, but is not limited thereto.

In some embodiments, the core network device may be a device, including one or more network elements, or may be a plurality of devices or groups of devices, each including all or part of one or more network elements. The network element may be virtual or physical. The core network comprises, for example, at least one of an evolved packet core (Evolved Packet Core, EPC), a 5G core network (5G Core Network,5GCN), a next generation core (Next Generation Core, NGC). Alternatively, the core network device may be a location management function network element. Illustratively, the location management function network element includes a location server (location server), which may be implemented as any one of: location management functions (Location Management Function, LMF), enhanced services mobile location center (Enhanced Serving Mobile Location Centre, E-SMLC), secure user plane location (Secure User Plane Location, SUPL), and secure user plane location platform (SUPL Location Platform, suplp).

It may be understood that, the communication system described in the embodiments of the present disclosure is for more clearly describing the technical solutions of the embodiments of the present disclosure, and is not limited to the technical solutions provided in the embodiments of the present disclosure, and those skilled in the art can know that, with the evolution of the system architecture and the appearance of new service scenarios, the technical solutions provided in the embodiments of the present disclosure are applicable to similar technical problems.

The embodiments of the present disclosure described below may be applied to the communication system 100 shown in fig. 1, or a part of the main body, but are not limited thereto. The respective bodies shown in fig. 1 are examples, and the communication system may include all or part of the bodies in fig. 1, or may include other bodies than fig. 1, and the number and form of the respective bodies are arbitrary, and the connection relationship between the respective bodies is examples, and the respective bodies may be not connected or may be connected, and the connection may be arbitrary, direct connection or indirect connection, or wired connection or wireless connection.

The embodiments of the present disclosure may be applied to long term evolution (Long Term Evolution, LTE), LTE-Advanced (LTE-a), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, fourth generation mobile communication system (4th generation mobile communication system,4G)), fifth generation mobile communication system (5th generation mobile communication system,5G), 5G New air (NR), future wireless access (Future Radio Access, FRA), new wireless access technology (New-Radio Access Technology, RAT), new wireless (New Radio, NR), new wireless access (New Radio access, NX), future generation wireless access (Future generation Radio access, FX), global System for Mobile communications (GSM (registered trademark)), CDMA2000, ultra mobile broadband (Ultra Mobile Broadband, UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, ultra WideBand-widenband, UWB), bluetooth (registered trademark)), land mobile communication network (Public Land Mobile Network, PLMN), device-to-Device (V-D), device (V-M), device-Device (V-D), internet of things system (V-2, device-V-Device (V-Device), system (V-Device), and other systems (V-Device, V-Device (V-Device) and other systems) are extended based on their systems. In addition, a plurality of system combinations (e.g., LTE or a combination of LTE-a and 5G, etc.) may be applied.

Optionally, in the communication system, for downlink positioning measurement, the introduced positioning usage reference signals are: downlink positioning reference signals (positioning reference signal, PRS), for uplink positioning measurements, the introduced positioning purpose reference signals are: sounding reference signals (sounding reference signal, SRS), for measurement of Side Links (SL), the positioning use reference signals introduced are: SL PRS and/or SL SRS; optionally, in some embodiments, in order to improve positioning bandwidth and spectrum utilization, it is desirable to introduce transmission and reception of unlicensed spectrum-based positioning usage reference signals. Wherein the unlicensed spectrum (unlicensed spectrum) and the shared spectrum (shared spectrum) may be interchanged. Optionally, on the unlicensed spectrum, the transmitting end needs to listen before talk (listen before talk, LBT) before transmitting the positioning reference signal on the spectrum resource corresponding to the positioning reference signal to monitor the channel condition of the unlicensed spectrum, optionally, the transmitting end needs to monitor energy (energy) on the unlicensed spectrum first, if the energy intensity is lower than the threshold value, it is indicated that the channel of the unlicensed spectrum is not occupied by other devices, that is, the channel indicating the unlicensed spectrum is in idle state, LBT is successful, and at this time, the transmitting end will transmit the positioning reference signal. If the energy intensity is higher than the threshold value, the channel of the unlicensed spectrum is occupied by other devices, that is, the channel of the unlicensed spectrum is busy, and LBT fails, at this time, the transmitting end cannot transmit the positioning purpose reference signal by using the unlicensed spectrum. Wherein the LBT and channel access procedures can be interchanged.

However, in some embodiments, the LBT detection units are limited by a maximum value, for example, the maximum value is 20 megahertz (MHz), and the bandwidth of the spectrum resources configured for the positioning reference signal for transmission may be greater than 20MHz, where the transmitting end may independently perform LBT detection at each detection unit, for example, the positioning reference signal corresponds to 60MHz of the spectrum resources, and the transmitting end may independently perform LBT detection at the first 20MHz, the middle 20MHz, and the last 20MHz of the spectrum resources, where the resulting 20MHz detects that the LBT is idle, and where the LBT is busy, the bandwidth of the resources that are idle for LBT may be less than the total bandwidth of the spectrum resources may be caused to be discontinuous, thereby reducing positioning accuracy. Thus, "how to perform channel access detection so that the bandwidth of reference signal transmission (or referred to as: the bandwidth where LBT is detected to be idle) is as wide and continuous as possible" is a problem to be solved.

Fig. 2A is an interactive schematic diagram illustrating a channel detection method according to an embodiment of the present disclosure. As shown in fig. 2A, embodiments of the present disclosure relate to a channel detection method for a communication system 100, the method including:

Step 2101, determining a spectrum resource corresponding to the reference signal.

Wherein the reference signal is a signal for positioning. Optionally, in some embodiments, the reference signal may include at least one of: PRS; SRS for positioning; SLPRS; SLSRS for positioning.

Optionally, in some embodiments, the first device may be a reference signal transmitting end, optionally, when the reference signal is a positioning reference signal (positioning reference signal, PRS), the first device may be an access network device (e.g., a base station and/or a transmission reception point (transmission reception point, TRP)); when the reference signal is at least one of a sounding reference signal (sounding reference signal, SRS), a Sidelink (SL) PRS, SL SRS, the first device may be a terminal (terminal) or a reference positioning unit (Positioning Reference Unit, PRU).

Alternatively, in some embodiments, the spectrum resource may be a shared spectrum (shared spectrum) resource, wherein the shared spectrum may be replaced with an unlicensed spectrum (unlicensed spectrum).

Optionally, the spectrum resources corresponding to the reference signal include resources for transmitting the reference signal, optionally, the reference signal transmitting end may perform LBT detection in the spectrum resources, and for resources with successful LBT in the spectrum resources, the reference signal may be transmitted on the resources. Wherein the LBT may be interchanged with a channel access procedure (channel access procedure).

Optionally, in some embodiments, the method for determining the spectrum resource corresponding to the reference signal by the first device may include at least one of:

the reference signal is PRS, and first configuration information sent by core network equipment (such as LMF) is received, wherein the first configuration information is used for determining spectrum resources corresponding to the PRS;

the reference signal is SRS, and second configuration information sent by access network equipment (such as a base station and/or TRP) is received, wherein the second configuration information is used for determining spectrum resources corresponding to the SRS;

the reference signal is SL SRS, and third configuration information sent by at least one of access network equipment, core network equipment, opposite terminal and opposite PRU is received, wherein the third configuration information is used for determining the corresponding frequency spectrum resource of the SL SRS;

the reference signal is SL PRS, and fourth configuration information sent by at least one of the access network device, the core network device, the peer terminal, and the peer PRU is received, where the fourth configuration information is used to determine a spectrum resource corresponding to the SL PRS.

Optionally, in some embodiments, when the first configuration information, the second configuration information, or the third configuration information is sent by the core network device, the first configuration information, the second configuration information, or the third configuration information may be sent by a long term evolution positioning protocol (Long Term Evolution positioning protocol, LPP) message; when the first configuration information, the second configuration information, or the third configuration information is transmitted by the access network device, the first configuration information, the second configuration information, or the third configuration information may be transmitted by at least one of radio resource control (Radio Resource Control, RRC) signaling, medium access control unit (Medium Access Control Control Element, MAC CE) signaling, and downlink control information (Downlink Control Information, DCI) signaling; when the first configuration information, the second configuration information, or the third configuration information is transmitted by the peer terminal, the PRU, the first configuration information, the second configuration information, or the third configuration information may be transmitted by at least one of SL RRC, SL MAC CE, SL control information (Sidelink Control Information, SCI), physical Sidelink Shared Channel (PSSCH), and Physical Sidelink Control Channel (PSCCH).

Optionally, in some embodiments, the first configuration information, the second configuration information, or the third configuration information is further used to configure at least one of: time domain parameters of the reference signal; frequency domain parameters of the reference signal; comb parameters of the reference signal; a power control parameter of the reference signal; quasi Co-Located (QCL) information of the reference signal; spatial relationship information of the reference signal; resource Identification (ID) of the reference signal; resource set ID of reference signal.

Optionally, in some embodiments, the time domain parameter may include at least one of: a period; a starting time slot; a start symbol; number of symbols occupied; repeating the transmission times; the interval value between repeated transmissions.

Optionally, in some embodiments, the frequency domain parameters may include at least one of: a frequency domain location; frequency domain offset; a frequency hopping mode.

The frequency domain parameters are used for determining the frequency spectrum resources.

Optionally, in some embodiments, the comb parameters may include at least one of: comb values; and (5) cyclic shift.

Optionally, in some embodiments, the power control parameter may include at least one of: a P0 value; an alpha value; the path loss reference signal pathloss RS.

Optionally, in some embodiments, the spectrum resources corresponding to different reference signals configured by the configuration information (i.e., the aforementioned first configuration information, second configuration information, or third configuration information) are the same or different. For PRSs, for example, the spectrum resources corresponding to different PRS resource sets in the configuration information may be the same or different. Since PRSs are transmitted by access network devices TRP, one access network device TRP may correspond to one or more PRS resource sets, and different PRS resource sets may correspond to the same TRP or different TRPs. The spectrum resources in the configuration information may be the same or different for different PRS resource sets. Alternatively, for SRS, the spectrum resources corresponding to different SRS resources in the configuration information may be the same or different. Because different SRSs are sent to different access network devices by the terminal, the frequency spectrum resources configured in the configuration information can be the same or different for the SRSs communicated between the terminal and the different access network devices; alternatively, for SL SRS or SL PRS, which are transmitted by the terminal to the peer terminal or PRU, the spectrum resources configured in the configuration information may be the same or different for SL SRS or SL PRS in which the terminal communicates with different peer terminals or different PRUs.

Alternatively, in some embodiments, reference signals corresponding to different TRPs may be distinguished using different reference signal identifications. By way of example, PRSs transmitted between different access network devices TRP and terminals may be distinguished by different PRS IDs.

Step 2102, a first device determines at least one bandwidth unit included in a spectrum resource.

Optionally, the spectrum resource may be divided into at least one bandwidth unit for the first device to perform LBT detection on each bandwidth unit, and for bandwidth units in the spectrum resource for which LBT is successful, the first device may transmit the reference signal on the bandwidth unit.

A bandwidth unit is a unit conceptually divided from a frequency domain, which may be one or more subcarriers, or one or more Resource Blocks (RBs), which is not limited herein.

Optionally, in some embodiments, the method of determining, by the first device, the at least one bandwidth unit included in the spectrum resource may include:

determining first information; the first information may be used to indicate a division manner of the bandwidth unit; optionally, the first information includes at least one of: a starting position of each bandwidth unit; the bandwidth of each bandwidth unit; termination location for each bandwidth unit; a starting position of an interval resource between two adjacent bandwidth units; the bandwidth of the interval resource between two adjacent bandwidth units; termination position of the gap resource between two adjacent bandwidth units.

Alternatively, when the first information includes a start position of the interval resource between the adjacent two bandwidth units and an end position of the interval resource between the adjacent two bandwidth units, at least one bandwidth unit included in the spectrum resource may be determined in the following manner: optionally, the starting position of the first bandwidth unit is the same as the starting position of the spectrum resource, and the ending position of the first bandwidth unit is the starting position of the first interval frequency domain (i.e. the interval resource between the first bandwidth unit and the second bandwidth unit); the starting position of the second bandwidth unit is the ending position of the first interval frequency domain, the ending position of the second bandwidth unit is the starting position of the second interval frequency domain (namely the interval resource between the second bandwidth unit and the third bandwidth unit), and so on, the starting position and the ending position of each bandwidth unit are determined.

Optionally, in some embodiments, the method for determining the first information may include at least one of:

the reference signal is PRS, and the first information is determined based on at least one of the sending of the core network equipment, the sending of the access network equipment, the protocol convention and the default rule;

The reference signal is SRS, and the first information is determined based on at least one of transmission, protocol agreement and default rule of the access network equipment;

the reference signal is SL SRS, and the first information is determined based on at least one of the transmission of core network equipment, the transmission of access network equipment, the transmission of a terminal at the opposite end, the transmission of PRU, protocol convention and default rules;

the reference signal is SL PRS, and the first information is determined based on at least one of a transmission of a core network device, a transmission of an access network device, a transmission of a peer terminal, a transmission of a PRU, a protocol convention, and a default rule.

Optionally, in some embodiments, the division manners of bandwidth units in spectrum resources corresponding to different reference signals are the same or different. For example, for PRS, it is sent to the terminal by the access network device, where the division manner of bandwidth units in spectrum resources corresponding to PRS communicated between different access network devices and the terminal may be the same or different; or for the SRS, the SRS is sent to the access network device by the terminal, where the division manner of bandwidth units in spectrum resources corresponding to the SRS communicated between the terminal and different access network devices may be the same or different; or, for the SL SRS or SL PRS, the SL SRS or SL PRS is sent by a terminal to a peer terminal or PRU, where the division manner of bandwidth units in spectrum resources corresponding to the SL SRS or SL PRS for communications between different peer terminals or different PRUs may be the same or different.

Optionally, in some embodiments, one or more bandwidth units may be included in the spectrum resource, where when a plurality of bandwidth units are included in the spectrum resource, the bandwidth of the bandwidth unit is smaller than the bandwidth of the spectrum resource, and, for example, the bandwidth of the bandwidth unit may be 20MHz; when a bandwidth unit is included in a spectrum resource, it is stated that the spectrum resource is not divided into bandwidth units, and at this time, the spectrum resource is called a bandwidth unit, and the bandwidth of the bandwidth unit is equal to the bandwidth of the spectrum resource.

Step 2103, the third device sends indication information to the first device.

Alternatively, the third device may be at least one of an access network device, a core network device (e.g., LMF), a terminal, and a PRU.

Optionally, in some embodiments, the indication information may be used to determine at least one target channel access mechanism.

Optionally, the target channel access mechanism may be used to determine whether the channel is idle, and/or the target channel access mechanism may be used to determine whether the channel is available for positioning, i.e. to determine whether the channel is available for transmitting positioning reference signals, or alternatively, the target channel access mechanism may be used for the first device to perform channel detection on one or more bandwidth units in a spectrum resource corresponding to the reference signals, such as: the LBT detection is performed, optionally when the first device detects that the channel of the bandwidth unit is idle based on the target channel access mechanism, a reference signal may be sent on the idle bandwidth unit.

Optionally, the target channel access mechanism may include a first type of channel access mechanism, a second type of channel access mechanism, or a third type of channel access mechanism; the channel detection required length of the first type of channel access mechanism is greater than or equal to the channel detection required length of the second type of channel access mechanism, and the channel detection required length of the second type of channel access mechanism is greater than the channel detection required length of the third type of channel access mechanism. The time length required by the channel detection of the channel access mechanism is proportional to the detection strictness of the channel access mechanism, and the detection stricter of the channel access mechanism is when the time length required by the channel detection of the channel access mechanism is longer.

Optionally, in some embodiments, the first type of channel access mechanism mayThe method comprises the following steps: channel detection based on contention windows (Contention window, CW); by way of example, the channel detection principle of the first type of channel access mechanism may be as follows: the time length of the channel is T _d (T _d =16us+m×9 (us)), and if the detection is idle, the following steps are continued.

S1, setting the count value n=n of the counter _init Wherein N is _init Is 0 to CW _p Random numbers uniformly distributed among the two, and executing the step S4;

S2, if N > 0, the count value of the counter is reduced by 1, namely N=N-1;

s3, making the length of the channel as T _sl (wherein T _sl Length 9us (microseconds)) and if the detection is idle, executing step S4; otherwise, executing the step S5;

s4, if n=0, ending the channel access procedure, and considering that the detection is successful (i.e. LBT is successful); otherwise, executing the step S2;

s5, doing time length for the channel is T _d (T _d =16us+m×9 (us)), step S6 is performed;

s6, if the channel detection result is T _d If the time is idle, executing the step S4; otherwise, step S5 is performed.

Alternatively, in some embodiments, N of each bandwidth unit may be independently valued, for example, N of each bandwidth unit may be randomly valued according to a respective CW or N of each bandwidth unit may be randomly valued according to one of the CWs corresponding to the respective bandwidth unit, such as a maximum CW or a minimum CW or any one of the CWs; alternatively, the N value of each bandwidth unit is the same, and is based on one of the CWs of the plurality of bandwidth units to perform random N value, such as the largest CW or the smallest CW or any one of the CWs.

Optionally, in some embodiments, the second type of channel access mechanism may be: single (one-shot) channel detection; optionally, the second type of channel access mechanism may include at least one of a first channel access mechanism and a second channel access mechanism; wherein the first channel access mechanism comprises: detecting the idle channel in a first duration, and considering that the detection is successful; the second channel access mechanism includes: detecting the idle channel in the second time period, and considering that the detection is successful; the first time period is longer than the second time period. Alternatively, the first duration may be 25us and the second duration may be 16us.

Optionally, in some embodiments, the third type of channel access mechanism described above may be: channel detection is not performed, namely: and the channel is directly considered to be idle without channel detection.

Alternatively, in some embodiments, the target channel access mechanism determined by the indication information sent by the third device may be one or at least two. Optionally, the third device may first determine a spectrum resource corresponding to the reference signal, and determine the number of target channel access mechanisms indicated by the indication information based on the number of bandwidth units included in the spectrum resource corresponding to the reference signal. The manner of determining the spectrum resource corresponding to the reference signal by the third device may be the same as the foregoing manner of determining the spectrum resource corresponding to the reference signal by the first device, or the third device may be a configuration end of the spectrum resource corresponding to the reference signal.

And when the third device determines the number of the target channel access mechanisms indicated by the indication information based on the number of bandwidth units included in the spectrum resource corresponding to the reference signal, the indication information may be used to determine one target channel access mechanism, where the one target channel access mechanism may be used for at least two bandwidth units in the spectrum resource; when the spectrum resource includes one bandwidth unit, and the spectrum resource is not considered to be divided into bandwidth units, the spectrum resource is called one bandwidth unit, the indication information may be used to determine a target channel access mechanism, and the target channel access mechanism may be used for the one bandwidth unit. Alternatively, the above-mentioned "target channel access mechanism for a certain bandwidth unit" can be understood as, for example: and carrying out channel detection on the bandwidth unit by utilizing the target channel access mechanism.

Optionally, in some embodiments, when the indication information sent by the third device is used to determine one target channel access mechanism, the one target channel access mechanism may be related to a period of the reference signal, and optionally, a time period required for channel detection of the one target channel access mechanism may be reduced along with an increase in the period of the reference signal. For example, if the period of the reference signal is less than or equal to the first value, determining the first type of channel access mechanism as the target channel access mechanism; and if the period of the reference signal is larger than the first value, determining the second type of channel access mechanism as a target channel access mechanism. Alternatively, the first value may be, for example, 20ms (milliseconds).

Optionally, in other embodiments, when at least two bandwidth units are included in the spectrum resource, the indication information may be used to determine at least two target channel access mechanisms; for example, the indication information may be used to determine two target channel access mechanisms or three target channel access mechanisms.

Optionally, in some embodiments, when the indication information is used to determine two target channel access mechanisms, the channel detection required durations of the two target channel access mechanisms are different, a target channel access mechanism with a longest channel detection required duration is used for the first bandwidth unit, a target channel access mechanism with a shortest channel detection required duration is used for the second bandwidth unit, and a target channel access mechanism with a longest channel detection required duration is also used for the third bandwidth unit; wherein the first bandwidth unit is any one of the at least one bandwidth unit, the second bandwidth unit is a bandwidth unit immediately adjacent to the first bandwidth unit, and the third bandwidth unit is a bandwidth unit other than the first bandwidth unit and the second bandwidth unit.

Examples are as follows: the indication information is used for determining a first type channel access mechanism and a second type channel access mechanism; the first type of channel access mechanism is used for carrying out channel detection on the first bandwidth unit, the second type of channel access mechanism is used for carrying out channel detection on the second bandwidth unit, and the first type of channel access mechanism is also used for carrying out channel detection on the third bandwidth unit; or determining a first type channel access mechanism and a third type channel access mechanism as target channel access mechanisms; the first type of channel access mechanism is used for carrying out channel detection on the first bandwidth unit, the third type of channel access mechanism is used for carrying out channel detection on the second bandwidth unit, and the first type of channel access mechanism is also used for carrying out channel detection on the third bandwidth unit; or determining the first channel access mechanism and the second channel access mechanism as target channel access mechanisms; the first channel access mechanism is used for carrying out channel detection on the first bandwidth unit, the second channel access mechanism is used for carrying out channel detection on the second bandwidth unit, and the first channel access mechanism is also used for carrying out channel detection on the third bandwidth unit; or determining the first channel access mechanism and the third type of channel access mechanism as target channel access mechanisms; the first channel access mechanism is used for carrying out channel detection on the first bandwidth unit, the third type of channel access mechanism is used for carrying out channel detection on the second bandwidth unit, and the first channel access mechanism is also used for carrying out channel detection on the third bandwidth unit.

Optionally, in other embodiments, when the indication information is used to determine two target channel access mechanisms, the channel detection needs to be different for the two target channel access mechanisms, the target channel access mechanism with the longest channel detection needs to be used for the first bandwidth unit, and the target channel access mechanism with the shortest channel detection needs to be used for the second bandwidth unit; wherein the first bandwidth unit is any one of the at least one bandwidth unit, and the second bandwidth unit is a bandwidth unit other than the first bandwidth unit.

Examples are as follows: the indication information is used for determining a first type channel access mechanism and a second type channel access mechanism; the first-class channel access mechanism is used for carrying out channel detection on the first bandwidth unit, and the second-class channel access mechanism is used for carrying out channel detection on the second bandwidth unit; or determining a first type channel access mechanism and a third type channel access mechanism as target channel access mechanisms; the first type of channel access mechanism is used for carrying out channel detection on the first bandwidth unit, and the third type of channel access mechanism is used for carrying out channel detection on the second bandwidth unit; or determining the first channel access mechanism and the second channel access mechanism as target channel access mechanisms; the first channel access mechanism is used for carrying out channel detection on the first bandwidth unit, and the second channel access mechanism is used for carrying out channel detection on the second bandwidth unit; or determining the first channel access mechanism and the third type of channel access mechanism as target channel access mechanisms; the first channel access mechanism is used for carrying out channel detection on the first bandwidth unit, and the third channel access mechanism is used for carrying out channel detection on the second bandwidth unit.

Optionally, in other embodiments, when the indication information is used to determine three target channel access mechanisms, where the channel detection needs different durations, a target channel access mechanism with a longest channel detection need among the three target channel access mechanisms is used for the first bandwidth unit, a target channel access mechanism with a shortest channel detection need among the three target channel access mechanisms is used for the second bandwidth unit, and a target channel access mechanism with a channel detection need among the three target channel access mechanisms is used for the third bandwidth unit; wherein the first bandwidth unit is any one of the at least one bandwidth unit, the second bandwidth unit is a bandwidth unit immediately adjacent to the first bandwidth unit, and the third bandwidth unit is a bandwidth unit other than the first bandwidth unit and the second bandwidth unit.

For example, the indication information is used for determining a first type channel access mechanism, a second type channel access mechanism and a third type channel access mechanism; the first type of channel access mechanism is used for carrying out channel detection on the first bandwidth unit, the third type of channel access mechanism is used for carrying out channel detection on the second bandwidth unit, and the second type of channel access mechanism is used for carrying out channel detection on the third bandwidth unit; determining a first channel access mechanism, a second channel access mechanism and a third type of channel access mechanism as target channel access mechanisms; the first channel access mechanism is used for carrying out channel detection on the first bandwidth unit, the third channel access mechanism is used for carrying out channel detection on the second bandwidth unit, and the second channel access mechanism is used for carrying out channel detection on the third bandwidth unit.

Step 2104, the first device determines at least one target channel access mechanism.

Optionally, in some embodiments, the first device may autonomously determine the at least one target channel access mechanism, and/or the first device may also determine the at least one target channel access mechanism based on indication information sent by the third device. Wherein the relevant introduction of the indication information can be described with reference to the above steps.

Optionally, in some embodiments, the method of autonomously determining at least one target channel access mechanism by the first device may include any one of:

the method comprises the following steps: the spectrum resource comprises at least two bandwidth units, and a target channel access mechanism is determined, wherein the target channel access mechanism is used for the at least two bandwidth units;

optionally, in some embodiments, when the spectrum resource includes at least two bandwidth units, the first device may determine the same target channel access mechanism for the at least two bandwidth units, so as to use the determined target channel access mechanism for the at least two bandwidth units. Alternatively, "target channel access mechanism for at least two bandwidth units" may be understood as, for example: and performing channel detection on the at least two bandwidth units by utilizing the target channel access mechanism.

Optionally, in some embodiments, the method for determining a target channel access mechanism by the first device may include: a target channel access mechanism is determined based on the period of the reference signal, wherein the time period required for channel detection by the target channel access mechanism may decrease with increasing period of the reference signal. For example, if the period of the reference signal is less than or equal to the first value, determining the first type of channel access mechanism as the target channel access mechanism; and if the period of the reference signal is larger than the first value, determining the second type of channel access mechanism as a target channel access mechanism. Alternatively, the first value may be, for example, 20ms (milliseconds).

The second method is as follows: the spectrum resource includes a bandwidth unit, and a target channel access mechanism is determined, wherein the target channel access mechanism is used for the bandwidth unit.

Alternatively, in some embodiments, "including a bandwidth unit in a spectrum resource" may be understood as, for example: the spectrum resource is not divided into bandwidth units, i.e. the spectrum resource is referred to as a bandwidth unit, and at this time, the first device may determine a target channel access mechanism and use the target channel access mechanism for the bandwidth unit, alternatively, "use the target channel access mechanism for the bandwidth unit" may be understood as: and carrying out channel detection on the bandwidth unit by utilizing the target channel access mechanism.

Alternatively, the method how the first device determines a target channel access mechanism may refer to the foregoing.

And a third method: the spectrum resource comprises at least two bandwidth units, and at least two target channel access mechanisms are determined; the at least two target channel access mechanisms are for different bandwidth units.

Optionally, in some embodiments, the method for determining at least two target channel access mechanisms may include at least one of:

the method comprises the steps of firstly, determining two target channel access mechanisms, wherein the time lengths required by channel detection of the two target channel access mechanisms are different, the target channel access mechanism with the longest time length required by channel detection in the two target channel access mechanisms is used for a first bandwidth unit, the target channel access mechanism with the shortest time length required by channel detection in the two target channel access mechanisms is used for a second bandwidth unit, and the target channel access mechanism with the longest time length required by channel detection in the two target channel access mechanisms is also used for a third bandwidth unit; wherein the first bandwidth unit is any one of the at least one bandwidth unit, the second bandwidth unit is a bandwidth unit immediately adjacent to the first bandwidth unit, and the third bandwidth unit is a bandwidth unit other than the first bandwidth unit and the second bandwidth unit.

Examples are as follows: determining a first type channel access mechanism and a second type channel access mechanism as target channel access mechanisms; the first type of channel access mechanism is used for carrying out channel detection on the first bandwidth unit, the second type of channel access mechanism is used for carrying out channel detection on the second bandwidth unit, and the first type of channel access mechanism is also used for carrying out channel detection on the third bandwidth unit; or determining a first type channel access mechanism and a third type channel access mechanism as target channel access mechanisms; the first type of channel access mechanism is used for carrying out channel detection on the first bandwidth unit, the third type of channel access mechanism is used for carrying out channel detection on the second bandwidth unit, and the first type of channel access mechanism is also used for carrying out channel detection on the third bandwidth unit; or determining the first channel access mechanism and the second channel access mechanism as target channel access mechanisms; the first channel access mechanism is used for carrying out channel detection on the first bandwidth unit, the second channel access mechanism is used for carrying out channel detection on the second bandwidth unit, and the first channel access mechanism is also used for carrying out channel detection on the third bandwidth unit; or determining the first channel access mechanism and the third type of channel access mechanism as target channel access mechanisms; the first channel access mechanism is used for carrying out channel detection on the first bandwidth unit, the third type of channel access mechanism is used for carrying out channel detection on the second bandwidth unit, and the first channel access mechanism is also used for carrying out channel detection on the third bandwidth unit.

Secondly, determining two target channel access mechanisms, wherein the channel detection needs different lengths, the target channel access mechanism with the longest channel detection needs is used for a first bandwidth unit, and the target channel access mechanism with the shortest channel detection needs is used for a second bandwidth unit; wherein the first bandwidth unit is any one of the at least one bandwidth unit, and the second bandwidth unit is a bandwidth unit other than the first bandwidth unit.

Examples are as follows: determining a first type channel access mechanism and a second type channel access mechanism as target channel access mechanisms; the first-class channel access mechanism is used for carrying out channel detection on the first bandwidth unit, and the second-class channel access mechanism is used for carrying out channel detection on the second bandwidth unit; or determining a first type channel access mechanism and a third type channel access mechanism as target channel access mechanisms; the first type of channel access mechanism is used for carrying out channel detection on the first bandwidth unit, and the third type of channel access mechanism is used for carrying out channel detection on the second bandwidth unit; or determining the first channel access mechanism and the second channel access mechanism as target channel access mechanisms; the first channel access mechanism is used for carrying out channel detection on the first bandwidth unit, and the second channel access mechanism is used for carrying out channel detection on the second bandwidth unit; or determining the first channel access mechanism and the third type of channel access mechanism as target channel access mechanisms; the first channel access mechanism is used for carrying out channel detection on the first bandwidth unit, and the third channel access mechanism is used for carrying out channel detection on the second bandwidth unit.

Thirdly, determining three target channel access mechanisms, wherein the time lengths required by channel detection of the three target channel access mechanisms are different, the target channel access mechanism with the longest time length required by channel detection in the three target channel access mechanisms is used for a first bandwidth unit, the target channel access mechanism with the shortest time length required by channel detection in the three target channel access mechanisms is used for a second bandwidth unit, and the target channel access mechanism with the shortest time length required by channel detection in the three target channel access mechanisms is used for a third bandwidth unit; wherein the first bandwidth unit is any one of the at least one bandwidth unit, the second bandwidth unit is a bandwidth unit immediately adjacent to the first bandwidth unit, and the third bandwidth unit is a bandwidth unit other than the first bandwidth unit and the second bandwidth unit.

For example, the first type of channel access mechanism, the second type of channel access mechanism and the third type of channel access mechanism are determined as target channel access mechanisms; the first type of channel access mechanism is used for carrying out channel detection on the first bandwidth unit, the third type of channel access mechanism is used for carrying out channel detection on the second bandwidth unit, and the second type of channel access mechanism is used for carrying out channel detection on the third bandwidth unit; determining a first channel access mechanism, a second channel access mechanism and a third type of channel access mechanism as target channel access mechanisms; the first channel access mechanism is used for carrying out channel detection on the first bandwidth unit, the third channel access mechanism is used for carrying out channel detection on the second bandwidth unit, and the second channel access mechanism is used for carrying out channel detection on the third bandwidth unit.

And fourthly, when the second equipment initiates channel sharing to the first equipment, determining a target channel access mechanism based on the first time interval.

Alternatively, in some embodiments, the second device may be a device on the opposite side of the first device, and the second device may initiate channel sharing with the first device, e.g., after the second device detects a channel idle time (e.g., channel occupancy time (Channel Occupany Time, COT)) via LBT, the second device may share the channel idle time to the first device in addition to transmitting signals during the channel idle time, such that the first device may also transmit signals using the channel idle time detected by the second device.

Alternatively, in some embodiments, when the reference signal is PRS, the first device may be an access network device, and when the reference signal is SRS, the second device may be a terminal, and when the reference signal is SL PRS and/or SL SRS, the first device may be a terminal or PRU, and when the reference signal is SL PRS and/or SL SRS, the second device may also be a terminal or PRU.

The first time interval may be used to indirectly indicate a duration that the first device is engaged in the shared COT. For example, the smaller the first time interval, the longer the first device may occupy in the shared COT. The first time interval may include: the duration that the second device occupies in the shared COT and/or the partial or full duration that the shared COT is assigned to the first device.

Alternatively, the first time interval may be: a time interval between a point in time when the first device transmits the reference signal and a point in time when the first device receives the information transmitted by the second device. Alternatively, the first time interval may be: the time interval between the time point when the first device transmits the reference signal and the time point when the first device last received the information transmitted by the second device, or the first time interval may be: a time interval between a point in time when the first device transmits the reference signal and a point in time when the first device receives any information transmitted by the second device.

Optionally, the method for determining the target channel access mechanism by the first device based on the first time interval may include:

the first time interval is smaller than the second value, the time domain length occupied by the reference signal is smaller than or equal to N symbols, N is a positive integer, and the third type of channel access mechanism is determined as a target channel access mechanism; wherein, the first time interval is: a time interval between a time the first device transmits the reference signal and a time the first device receives the transmission of the second device; optionally, when the first time interval is smaller than the second value, it indicates that the first time interval is smaller, that is, the interval between the time when the first device transmits the reference signal and the time when the first device receives the transmission of the second device is smaller, the probability that the channel is idle is larger at this time, so that a looser channel access mechanism may be used for channel detection, for example: the most relaxed third class of channel access mechanisms may be determined as the target channel access mechanism.

The first time interval is larger than or equal to the second value and smaller than the third value, and the second type of channel access mechanism is determined as a target channel access mechanism; optionally, when the first time interval is greater than or equal to the second value and less than the third value, it indicates that the first time interval is moderate, that is, the interval between the time when the first device transmits the reference signal and the time when the first device receives the transmission of the second device is moderate, then the probability of the channel being idle is also relatively moderate, so that a generally loose channel access mechanism may be used for channel detection, for example: the second type of channel access mechanism may be determined to be the target channel access mechanism.

The first time interval is greater than or equal to a third value, and the first type of channel access mechanism is determined to be a target channel access mechanism. Optionally, when the first time interval is greater than or equal to the third value, it indicates that the first time interval is greater, that is, the interval between the time when the first device transmits the reference signal and the time when the first device receives the transmission of the second device is greater, the probability that the channel is idle is smaller at this time, so that a more strict channel access mechanism may be used for channel detection, for example: the most stringent first type of channel access mechanism may be determined to be the target channel access mechanism.

Alternatively, in some embodiments, the second value may be 16us and the third value may be 25us. The value of N above is different for different subcarrier spacings (subcarrier spacing, SCS), optionally when SCS is 15 kHz, n=2; when SCS is 30khz, n=4 symbols; when SCS is 60khz, n=8 symbols.

Optionally, the first to fourth methods are all applicable when the first device initiates the channel occupation, and the fourth method is also applicable when the second device initiates the channel occupation and provides the channel sharing.

Alternatively, in other embodiments, when the second device initiates channel sharing to the first device, the first device may determine the target channel access mechanism based on the second time interval. Wherein the second time interval may be used to indicate a channel time that the first device may occupy. The second time interval may be selected from one or more candidate values; alternatively, the second time interval may be determined based on the end of the above-described channel idle time (i.e., the COT detected by the second device through the LBT). For example, the second time interval may be a time interval between a point of time when the first device transmits the reference signal and an end of the above-described channel idle time (i.e., the COT detected by the second device through the LBT). Optionally, when the second time interval is less than the fourth value, determining the first type of channel access mechanism as the target channel access mechanism; when the second time interval is greater than or equal to the fourth value and less than the fifth value, determining the second type of channel access mechanism as a target channel access mechanism; and when the second time interval is greater than or equal to the fifth value, determining the third type of channel access mechanism as a target channel access mechanism.

Alternatively, the sum of the first time interval and the second time interval may be a fixed value, for example, may be: the second device detects the total duration of the idle time of the channel through the LBT, wherein the second time interval is smaller when the first time interval is larger; the smaller the first time interval, the larger the second time interval.

In step 2105, the first device performs channel detection on the spectrum resource corresponding to the reference signal based on the target channel access mechanism.

Optionally, in some embodiments, the first device may perform channel detection on one or more bandwidth units in the spectrum resource corresponding to the reference signal based on the target channel access mechanism.

For example, in some embodiments, if the first device determines a target channel access mechanism by using the first method, the first device may perform channel detection on at least two bandwidth units in a spectrum resource corresponding to the reference signal by using the determined target channel access mechanism;

for example, in still other embodiments, if the first device determines a target channel access mechanism by using the second method, the first device may perform channel detection on a bandwidth unit in a spectrum resource corresponding to the reference signal by using the determined target channel access mechanism;

For example, in still other embodiments, if the first device determines two target channel access mechanisms by using the third method, the first bandwidth unit may be detected by using a target channel access mechanism with a longest channel detection time among the two target channel access mechanisms, the second bandwidth unit may be detected by using a target channel access mechanism with a shortest channel detection time among the two target channel access mechanisms, and the third bandwidth unit may be detected by using a target channel access mechanism with a longest channel detection time among the two target channel access mechanisms; wherein the first bandwidth unit is any one of at least one bandwidth unit, the second bandwidth unit is a bandwidth unit adjacent to the first bandwidth unit, and the third bandwidth unit is a bandwidth unit other than the first bandwidth unit and the second bandwidth unit;

or, in some embodiments, if the first device determines two target channel access mechanisms by using the method three, the first bandwidth unit may be used to perform channel detection on the first bandwidth unit by using a target channel access mechanism with a longest channel detection time length of the two target channel access mechanisms, and the second bandwidth unit may be used to perform channel detection on the second bandwidth unit by using a target channel access mechanism with a shortest channel detection time length of the two target channel access mechanisms, where the first bandwidth unit is any bandwidth unit of the at least one bandwidth unit, and the second bandwidth unit is a bandwidth unit other than the first bandwidth unit;

Alternatively, in some embodiments, if the first device determines three target channel access mechanisms by using the method three, the target channel access mechanism with the longest channel detection time among the three target channel access mechanisms may be used for the first bandwidth unit, the target channel access mechanism with the shortest channel detection time among the three target channel access mechanisms may be used for the second bandwidth unit, and the target channel access mechanism with the shortest channel detection time among the three target channel access mechanisms may be used for the third bandwidth unit; wherein the first bandwidth unit is any one of the at least one bandwidth unit, the second bandwidth unit is a bandwidth unit immediately adjacent to the first bandwidth unit, and the third bandwidth unit is a bandwidth unit other than the first bandwidth unit and the second bandwidth unit.

Or, by way of example, in yet other embodiments, when the second device initiates channel sharing to the first device, the first device performs channel detection on one or more bandwidth units in the spectrum resource using a target channel access mechanism determined based on the first time interval. For example, if the target channel access mechanism determined by the first device based on the first time interval is: a third type of channel access mechanism, the first device may utilize the third type of channel access mechanism to channel detect one or more bandwidth units in the spectrum resource.

It should be noted that, when bandwidths of the bandwidth units are different, the threshold value for detecting idle may be different, alternatively, the threshold value for detecting idle may have the same meaning as the threshold value described in the foregoing embodiment of fig. 2A, alternatively, when it is detected that energy (energy) of a certain bandwidth unit is lower than the threshold value for detecting idle based on the target channel access mechanism, it is indicated that the bandwidth unit is not occupied by other devices, that is, it is indicated that the bandwidth unit is in idle state, and if energy intensity of the bandwidth unit is higher than the threshold value for detecting idle, it is indicated that the bandwidth unit is occupied by other devices, that is, it is indicated that the bandwidth unit is in busy state. Alternatively, the first device may transmit the reference signal using a bandwidth unit for which channel detection is successful (e.g., LBT success), and may not transmit the reference signal using a bandwidth unit for which channel detection is failed (e.g., LBT failure).

Step 2106, the first device transmits a reference signal on a first channel.

Alternatively, the first channel may comprise a channel that the first device successfully accesses through the target channel access mechanism.

Optionally, in some embodiments, the first device may send the reference signal to the third device, or the first device may also send the reference signal to other devices than the third device.

The channel detection method according to the embodiment of the present disclosure may include at least one of step S2101 to step S2106. For example, step S2101 may be implemented as a separate embodiment, step S2102 may be implemented as a separate embodiment, step S2103 may be implemented as a separate embodiment, and step S2101+s2102 may be implemented as a separate embodiment, but is not limited thereto.

In this embodiment mode or example, the steps may be independently, arbitrarily combined, or exchanged in order, and the alternative modes or examples may be arbitrarily combined, and may be arbitrarily combined with any steps of other embodiment modes or other examples without contradiction.

Fig. 3A is an interactive schematic diagram illustrating a channel detection method according to an embodiment of the present disclosure. As shown in fig. 3A, an embodiment of the present disclosure relates to a channel detection method for a first device 101, where the method includes:

in step 3101, the first device determines a spectrum resource corresponding to the reference signal.

Step 3102, the first device determines at least one bandwidth unit included in the spectrum resource.

Step 3103, the first device receives the indication information sent by the third device.

Step 3104, the first device determines at least one target channel access mechanism.

In step 3105, the first device performs channel detection on the spectrum resource corresponding to the reference signal based on the target channel access mechanism.

Step 3106, the first device transmits a reference signal on a first channel.

A detailed description of steps 3101-3106 may be described with reference to the above embodiments.

The channel detection method according to the embodiment of the present disclosure may include at least one of step S3101 to step S3106. For example, step S3101 may be implemented as a separate embodiment, step S3102 may be implemented as a separate embodiment, and step s3101+s3102 may be implemented as a separate embodiment, but is not limited thereto.

Fig. 3B is an interactive schematic diagram illustrating a channel detection method according to an embodiment of the present disclosure. As shown in fig. 3E, an embodiment of the present disclosure relates to a channel detection method for a first device 101, where the method includes:

step 3201, the first device determining at least one target channel access mechanism;

Step 3202, the first device performs channel detection on the spectrum resource corresponding to the reference signal based on the target channel access mechanism;

optionally, the spectrum resource corresponding to the reference signal is a shared spectrum resource;

the target channel access mechanism comprises a first type channel access mechanism, a second type channel access mechanism or a third type channel access mechanism;

Optionally, the method further comprises:

Optionally, the determining at least one target channel access mechanism includes any one of:

the spectrum resource comprises at least two bandwidth units, and a target channel access mechanism is determined, wherein the target channel access mechanism is used for the at least two bandwidth units;

The spectrum resource comprises a bandwidth unit, and a target channel access mechanism is determined, wherein the target channel access mechanism is used for the bandwidth unit.

Optionally, the determining a target channel access mechanism includes:

a target channel access mechanism is determined based on the period of the reference signal, wherein the period of the reference signal is inversely proportional to the time duration required for channel detection by the target channel access mechanism.

Optionally, the determining a target channel access mechanism includes at least one of:

the period of the reference signal is smaller than or equal to a first value, and the first type of channel access mechanism is determined as the target channel access mechanism;

and the period of the reference signal is larger than a first value, and the second type of channel access mechanism is determined as the target channel access mechanism.

Optionally, the determining at least one target channel access mechanism includes:

Optionally, the determining at least two target channel access mechanisms includes at least one of:

Determining two target channel access mechanisms, wherein the time lengths required by channel detection of the two target channel access mechanisms are different, the target channel access mechanism with the longest time length required by channel detection in the two target channel access mechanisms is used for a first bandwidth unit, the target channel access mechanism with the shortest time length required by channel detection in the two target channel access mechanisms is used for a second bandwidth unit, and the target channel access mechanism with the longest time length required by channel detection in the two target channel access mechanisms is also used for a third bandwidth unit; wherein the first bandwidth unit is any one of the at least one bandwidth unit, the second bandwidth unit is a bandwidth unit immediately adjacent to the first bandwidth unit, and the third bandwidth unit is a bandwidth unit other than the first bandwidth unit and the second bandwidth unit;

determining two target channel access mechanisms, wherein the time lengths required by channel detection of the two target channel access mechanisms are different, the target channel access mechanism with the longest time length required by channel detection in the two target channel access mechanisms is used for a first bandwidth unit, and the target channel access mechanism with the shortest time length required by channel detection in the two target channel access mechanisms is used for a second bandwidth unit; wherein the first bandwidth unit is any one of the at least one bandwidth unit, and the second bandwidth unit is a bandwidth unit other than the first bandwidth unit;

Determining three target channel access mechanisms, wherein the channel detection time periods of the three target channel access mechanisms are different, the target channel access mechanism with the longest channel detection time period in the three target channel access mechanisms is used for a first bandwidth unit, the target channel access mechanism with the shortest channel detection time period in the three target channel access mechanisms is used for a second bandwidth unit, and the target channel access mechanism with the channel detection time period in the three target channel access mechanisms is used for a third bandwidth unit; wherein the first bandwidth unit is any one of the at least one bandwidth unit, the second bandwidth unit is a bandwidth unit immediately adjacent to the first bandwidth unit, and the third bandwidth unit is a bandwidth unit other than the first bandwidth unit and the second bandwidth unit.

Optionally, the second device initiates channel sharing to the first device, and the determining at least one target channel access mechanism includes at least one of:

Optionally, the first type of channel access mechanism is channel detection based on a contention window CW;

the second type channel access mechanism is single channel detection;

the third type of channel access mechanism is not used for channel detection.

Optionally, the second type of channel access mechanism includes at least one of a first channel access mechanism and a second channel access mechanism;

wherein the first time period is longer than the second time period.

Optionally, the reference signal includes at least one of: positioning reference signals PRS; sounding reference signals, SRS, for positioning; side uplink SL PRS; SL SRS for positioning.

The details of steps 3201-3202 are described with reference to the embodiments of FIGS. 2A and 3A described above.

The channel detection method according to the embodiment of the present disclosure may include at least one of step S3201 to step S3202. For example, step S3201 may be implemented as a separate embodiment, and step S3202 may be implemented as a separate embodiment, but is not limited thereto.

Fig. 4A is an interactive schematic diagram illustrating a channel detection method according to an embodiment of the present disclosure. As shown in fig. 4A, an embodiment of the present disclosure relates to a channel detection method for a third device 102, where the method includes:

step 4101, the third device sends indication information to the first device, the indication information being used to determine at least one target channel access mechanism.

Optionally, the target channel access mechanism is configured to perform channel detection on a spectrum resource corresponding to the reference signal; wherein, the spectrum resource corresponding to the reference signal is a shared spectrum resource.

Optionally, the target channel access mechanism includes a first type channel access mechanism, a second type channel access mechanism, or a third type channel access mechanism;

Optionally, the indication information is used to determine at least one target channel access mechanism, including any one of the following:

Optionally, the indication information is used for determining at least one target channel access mechanism, including:

Optionally, the indication information is used to determine at least two target channel access mechanisms, including at least one of:

Optionally, the first type of channel access mechanism is CW-based channel detection;

the second type channel access mechanism is single channel detection;

the third type of channel access mechanism is not used for channel detection.

wherein the first time period is longer than the second time period.

Optionally, the reference signal includes at least one of: PRS; SRS for positioning; SL PRS; SL SRS for positioning.

For a detailed description of step 4101, reference is made to the above description of the fig. 2A embodiment.

Fig. 5 is a flow chart illustrating a channel detection method according to an embodiment of the present disclosure. As shown in fig. 5, an embodiment of the present disclosure relates to a channel detection method, for a communication system, where the communication system includes a first device and a third device, where the method includes at least one of:

step 5101, the third device sends indication information to the first device, where the indication information is used to determine at least one target channel access mechanism; the target channel access mechanism is used for carrying out channel detection on spectrum resources corresponding to the reference signals; wherein, the spectrum resource corresponding to the reference signal is shared spectrum resource;

In step 5102, the first device determines at least one target channel access mechanism based on the indication information.

Step 5103, the first device performs channel detection on spectrum resources corresponding to the reference signal based on the target channel access mechanism; wherein, the spectrum resource corresponding to the reference signal is a shared spectrum resource.

In step 5104, the first device transmits a reference signal on a first channel, the first channel including a channel successfully accessed by the first device through a target channel access mechanism.

Alternative implementations of steps 5101-5103 may be found in any embodiment or steps in any number of embodiments of the embodiments of fig. 2A, 3A-3B described above, and other associated portions of the embodiments of fig. 4A-4B.

In some embodiments, the method may include the method described in the embodiments of the communication system side, the terminal side, the network device side, and so on, which are not described herein.

The channel detection method according to the embodiment of the present disclosure may include at least one of step S5101 to step S5108. For example, step S5101 may be implemented as a separate embodiment, step S5102 may be implemented as a separate embodiment, and steps S5101+s5102 may be implemented as a separate embodiment, but are not limited thereto.

The following is an exemplary description of the above method.

The positioning use reference signals are PRS, SRS, SL-PRS, SL-SRS. If PRS, then the execution body is TRP, i.e. base station; in case of SRS, SL-PRS, SL-SRS, the execution body is UE, which may be a general UE or PRU.

1. The first device determines a frequency domain resource corresponding to the positioning purpose reference signal and at least one bandwidth unit contained in the frequency domain resource.

The method for determining the frequency domain resource and the bandwidth unit is from the seventh point to the tenth point.

2. Based on one, the number of bandwidth units is greater than or equal to 2, i.e., method one: the bandwidth units do not increase, e.g., again with 20MHz, so that the frequency domain resource would contain multiple bandwidth units.

3. Based on two (this may also correspond to the case where there is only one bandwidth unit), the channel access (channel access) mechanism for each bandwidth unit is the same.

For PRS/SRS with period less than or equal to 20 ms:

first type channel access mechanism: type 1. The principle is as follows: the eNB/gNB may transmit a transmission after first sensing The channel to be idleduring The sensing slot durations of a defer duration T _d (16us+m additional sensing slot duration such as 9 us) and after the counter N is zero in step 4.The counter N is adjusted by sensing the channel for additional sensing slot duration(s) according to the steps below:

1)set N＝N _init ,where N _init is a random number uniformly distributed between 0and CW _p ,and go to step 4；

2)if N>0and the eNB/gNB chooses to decrement the counter,set N＝N-1；

3)sense the channel for an additional sensing slot duration,and if the additional sensing slot duration is idle,go to step 4；else,go to step 5；

4)if N＝0,stop；else,go to step 2.

5)sense the channel until either a busy sensing slot is detected within an additional defer duration Tdor all the sensing slots of the additional defer duration T _d are detected to be idle；

6)if the channel is sensed to be idleduring all the sensing slot durations of the additional defer duration T _d ,go to step 4；else,go to step 5；

n of each bandwidth unit is independently valued, namely randomly valued according to respective CW

The value of N is the same for each bandwidth unit, and the value of N is based on the largest CW among all CWs of the plurality of bandwidth units.

For PRS/SRS with period greater than 20 ms:

based on a second type of channel access mechanism: type 2A or 2B, for example, only need to detect the idle channel in 25us or 16us

4. Based on two, the channel access mechanisms corresponding to the respective bandwidth units may be different.

The plurality of bandwidth units corresponds to two channel access mechanisms, wherein one bandwidth unit detects idle and the other bandwidth unit detection mechanism is loose.

For example, the first unit is based on a first Type 1, and the second unit is based on a second Type such as one-shot detection (Type 2a, type 2 b), even without detecting Type 2C.

The second unit is the one next to the first unit, while the other second units are the same due to the first unit mechanism.

Or the second unit is all other units.

Or the first unit is based on Type 2A and the second unit is based on Type 2B or Type 2C.

The second unit is as above.

Or the plurality of bandwidth units correspond to three mechanisms, wherein one bandwidth unit detects idle, for example, a first unit detects idle based on Type 1, then a second unit next to the first unit does not need to detect (Type 2C), and a third unit next to the second unit detects one-shot (Type 2A or 2B); or the first unit detects idle based on the Type 2A, the second unit next to the first unit does not need to detect (Type 2C), and the third unit next to the second unit detects one-shot (Type 2B).

5. Based on one, the value of the bandwidth unit is increased, namely, a second method: the size of the channel access bandwidth unit may be increased, such as by directly defining the bandwidth of the location utility reference signal as one channel access bandwidth unit, such that either no idle is detected or no idle is detected.

The bandwidths of the bandwidth units are different, the threshold value for detecting the idle is different, and the larger the bandwidth is, the harder the idle of the channel is detected.

6. The method is suitable for the condition that the transmitting end initiates the channel occupation, and is also suitable for the condition that the opposite side initiates the channel occupation and provides the channel sharing. When the PRS is adopted, the sending end is a base station, and the opposite side is the UE end; when the SRS is the SRS, the sending end is the UE, and the opposite side is the base station; when SL-PRS/SL-SRS, the transmitting end is UE, the opposite side is also UE, and the UE is based on the communication of the transmitting UE.

When the time interval between the signal sharing and the opposite terminal is smaller than 16us, and the number of symbols occupied by the positioning purpose reference signal cannot exceed: 2,4and 8symbols for subcarrier spacing of 15,30and 60kHz.

Type 2C was used.

At least the first unit adopts Type 2A or 2B when the interval is 16 us-25 us.

The method for determining the frequency domain resource and the bandwidth unit comprises the following steps:

if the positioning use reference signal is PRS.

7. The terminal receives the frequency domain resource configuration information of the PRS sent by the network equipment, and determines a plurality of bandwidth units in the frequency domain resource.

The configured frequency domain resources are determined based on PRS configuration information sent by the LMF through the LPP, and bandwidth units contained by the configured frequency domain resources are determined by a network configuration (LMF or base station), or default rules.

For example, the network configures the starting position, bandwidth and/or end position of each bandwidth unit, and the bandwidth and the end position generally need one;

or the network device configures a start position and a bandwidth or end position of the interval frequency domain in the middle of every two bandwidth units.

Because the starting position of the first bandwidth unit is the same as the starting position of the configured frequency domain resource, and the ending position of the first bandwidth unit is the starting position of the first interval frequency domain; and the starting position of the second bandwidth unit is the ending position of the first interval frequency domain, the ending position of the second bandwidth unit is the starting position of the second interval frequency domain, and so on.

Or default rules or protocol specifications.

The protocol specifies the bandwidth of each bandwidth unit, and the bandwidth of the spaced frequency domain.

It should be noted that: the bandwidth units of PRS resources that prioritize the various TRPs are equally partitioned. The description may also contain different situations.

If the positioning use reference signal is SRS.

8. The terminal receives the frequency domain resource configuration information of the SRS sent by the base station and determines a plurality of bandwidth units in the frequency domain resource.

The configured resources are configured by the base station through at least one of RRC signaling, MACCE and DCI. The bandwidth units comprised by the configured frequency domain resources are determined by the network configuration (base station), or default rules.

Because the starting position of the first bandwidth unit is the same as the starting position of the configured frequency domain resource, and the ending position of the first bandwidth unit is the starting position of the first interval frequency domain; and the starting position of the second bandwidth unit is the ending position of the first interval frequency domain, the ending position of the second bandwidth unit is the starting position … … of the second interval frequency domain, and so on.

Or default rules or protocol specifications.

It should be noted that: the same division manner of bandwidth units of SRS transmitted to different TRPs, the resources of SRS transmitted to different TRPs are contained in one SRS resource set, or the beam directions corresponding to SRS resources transmitted to different TRPs are different.

If the positioning use reference signal is SLPRS or SLSRS.

9. The first terminal (may be a general terminal or PRU) receives frequency domain resource configuration information of SL-PRS/SL-SRS sent by at least one second terminal (may be a general terminal or PRU) or a network device, and determines a plurality of bandwidth units in the frequency domain resource.

The configured frequency domain resources are determined based on PRS configuration information transmitted by the LMF through the LPP, or the configured frequency domain resources are determined by the base station based on at least one of RRC, MACCE, and DCI, or the configured frequency domain resources are determined by the second terminal through SLRRC, SLMACCE, sidelinkControlInformation (SCI). And the bandwidth units comprised by the configured frequency domain resources are determined by the network configuration (LMF or base station) or the second terminal, or by default rules.

Such as the network device or the second terminal configures the starting location, bandwidth and/or ending location of each bandwidth unit. The bandwidth and termination location generally need to be one.

Or the network device or the second terminal configures a start position and a bandwidth or an end position of an interval frequency domain in the middle of every two bandwidth units.

Or default rules or protocol specifications. The protocol specifies the bandwidth of each bandwidth unit, and the bandwidth of the spaced frequency domain.

It should be noted that: the bandwidth units of the SL-PRS/SL-SRS resources transmitted by the second terminals are preferentially divided in the same way. The description may also contain different situations.

10. In the background, the configuration information of the positioning usage reference signal comprises at least one of the following information

A time domain parameter; a period; a starting time slot; a start symbol position; number of symbols occupied; repetition times; interval between repetition

Frequency domain parameters (i.e., frequency domain resources); frequency domain position (freqdomalnposition); frequency domain offset (freqdomaimailshift); frequency hopping (freqHopping); the comb parameters include at least one of: comb value (combOffset), cyclic shift (cyclicShift); p0 and alpha, pathlossRS are power control related parameters; QCLinformation, spatialrelationinformation; reference signal resource ID, reference signal resource setID.

The embodiments of the present disclosure also provide an apparatus for implementing any of the above methods, for example, an apparatus is provided, where the apparatus includes a unit or a module for implementing each step performed by the terminal in any of the above methods. For another example, another apparatus is also proposed, which includes a unit or module configured to implement steps performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.

It should be understood that the division of each unit or module in the above apparatus is merely a division of a logic function, and may be fully or partially integrated into one physical entity or may be physically separated when actually implemented. Furthermore, units or modules in the apparatus may be implemented in the form of processor-invoked software: the device comprises, for example, a processor, the processor being connected to a memory, the memory having instructions stored therein, the processor invoking the instructions stored in the memory to perform any of the methods or to perform the functions of the units or modules of the device, wherein the processor is, for example, a general purpose processor, such as a central processing unit (Central Processing Unit, CPU) or microprocessor, and the memory is internal to the device or external to the device. Alternatively, the units or modules in the apparatus may be implemented in the form of hardware circuits, and part or all of the functions of the units or modules may be implemented by designing hardware circuits, which may be understood as one or more processors; for example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC), and the functions of some or all of the units or modules are implemented by designing the logic relationships of elements in the circuit; for another example, in another implementation, the above hardware circuit may be implemented by a programmable logic device (programmable logic device, PLD), for example, a field programmable gate array (Field Programmable Gate Array, FPGA), which may include a large number of logic gates, and the connection relationship between the logic gates is configured by a configuration file, so as to implement the functions of some or all of the above units or modules. All units or modules of the above device may be realized in the form of invoking software by a processor, or in the form of hardware circuits, or in part in the form of invoking software by a processor, and in the rest in the form of hardware circuits.

In the disclosed embodiments, the processor is a circuit with signal processing capabilities, and in one implementation, the processor may be a circuit with instruction reading and running capabilities, such as a central processing unit (Central Processing Unit, CPU), microprocessor, graphics processor (graphics processing unit, GPU) (which may be understood as a microprocessor), or digital signal processor (digital signal processor, DSP), etc.; in another implementation, the processor may implement a function through a logical relationship of hardware circuits that are fixed or reconfigurable, e.g., a hardware circuit implemented as an application-specific integrated circuit (ASIC) or a programmable logic device (programmable logic device, PLD), such as an FPGA. In the reconfigurable hardware circuit, the processor loads the configuration document, and the process of implementing the configuration of the hardware circuit may be understood as a process of loading instructions by the processor to implement the functions of some or all of the above units or modules. Furthermore, hardware circuits designed for artificial intelligence may be used, which may be understood as ASICs, such as neural network processing units (Neural Network Processing Unit, NPU), tensor processing units (Tensor Processing Unit, TPU), deep learning processing units (Deep learning Processing Unit, DPU), etc.

Fig. 6A is a schematic structural diagram of a first apparatus according to an embodiment of the present disclosure. As shown in fig. 6A, includes:

Optionally, the processing module is configured to perform a step related to "processing" performed by the first device in any of the above methods, and optionally, the first device further includes at least one of a receiving module and a sending module, where the receiving module is configured to perform a step related to "receiving" performed by the first device in any of the above methods, and the sending module is configured to perform a step related to "sending" performed by the first device in any of the above methods, which are not described herein.

Fig. 6B is a schematic structural diagram of a third apparatus according to an embodiment of the present disclosure. As shown in fig. 6B, includes:

a transmitting module, configured to transmit indication information to a first device, where the indication information is used to determine at least one target channel access mechanism; the target channel access mechanism is used for carrying out channel detection on spectrum resources corresponding to the reference signals; wherein, the spectrum resource corresponding to the reference signal is a shared spectrum resource.

Optionally, the sending module is configured to perform the step related to "sending" performed by the first device 102 in any one of the above methods, and optionally, the second device further includes at least one of a processing module and a receiving module, where the receiving module is configured to perform the step related to "receiving" performed by the first device 102 in any one of the above methods, and the processing module is configured to perform the step related to processing performed by the first device 102 in any one of the above methods, which is not described herein.

Fig. 7A is a schematic structural diagram of a communication device 7100 according to an embodiment of the present disclosure. The communication device 7100 may be a network device (e.g., an access network device, a core network device, etc.), a terminal (e.g., a user device, etc.), a chip system, a processor, etc. that supports the network device to implement any of the above methods, or a chip, a chip system, a processor, etc. that supports the terminal to implement any of the above methods. The communication device 7100 may be used to implement the methods described in the above method embodiments, and may be referred to in particular in the description of the above method embodiments.

As shown in fig. 7A, the communication device 7100 includes one or more processors 7101. The processor 7101 may be a general-purpose processor or a special-purpose processor, etc., and may be, for example, a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processor may be used to control communication devices (e.g., base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process data for the programs. The processor 7101 is operable to invoke instructions to cause the communication device 7100 to perform any of the above methods.

In some embodiments, the communication device 7100 also includes one or more memories 7102 for storing instructions. Alternatively, all or part of the memory 7102 may be external to the communication device 7100.

In some embodiments, the communication device 7100 also includes one or more transceivers 7103. When the communication device 7100 includes one or more transceivers 7103, communication steps such as transmission and reception in the above method are performed by the transceivers 7103, and other steps are performed by the processor 7101.

In some embodiments, the transceiver may include a receiver and a transmitter, which may be separate or integrated. Alternatively, terms such as transceiver, transceiver unit, transceiver circuit, etc. may be replaced with each other, terms such as transmitter, transmitter circuit, etc. may be replaced with each other, and terms such as receiver, receiving unit, receiver, receiving circuit, etc. may be replaced with each other.

Optionally, the communication device 7100 further comprises one or more interface circuits 7104, the interface circuits 7104 being connected to the memory 7102, the interface circuits 7104 being operable to receive signals from the memory 7102 or other means, and being operable to transmit signals to the memory 7102 or other means. For example, the interface circuit 7104 may read an instruction stored in the memory 7102 and send the instruction to the processor 7101.

The communication device 7100 in the above embodiment description may be a network device or a terminal, but the scope of the communication device 7100 described in the present disclosure is not limited thereto, and the structure of the communication device 7100 may not be limited by fig. 7 a. The communication device may be a stand-alone device or may be part of a larger device. For example, the communication device may be: 1) A stand-alone integrated circuit IC, or chip, or a system-on-a-chip or subsystem; (2) A set of one or more ICs, optionally including storage means for storing data, programs; (3) an ASIC, such as a Modem (Modem); (4) modules that may be embedded within other devices; (5) A receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handset, a mobile unit, a vehicle-mounted device, a network device, a cloud device, an artificial intelligent device, and the like; (6) others, and so on.

Fig. 7B is a schematic structural diagram of a chip 7200 according to an embodiment of the disclosure. For the case where the communication device 7100 may be a chip or a chip system, reference may be made to a schematic structural diagram of the chip 7200 shown in fig. 7B, but is not limited thereto.

The chip 7200 includes one or more processors 7201, the processors 7201 for invoking instructions to cause the chip 7200 to perform any of the above methods.

In some embodiments, the chip 7200 further includes one or more interface circuits 7202, the interface circuits 7202 being coupled to the memory 7203, the interface circuits 7202 being operable to receive signals from the memory 7203 or other devices, the interface circuits 7202 being operable to transmit signals to the memory 7203 or other devices. For example, the interface circuit 7202 may read instructions stored in the memory 7203 and send the instructions to the processor 7201. Alternatively, the terms interface circuit, interface, transceiver pin, transceiver, etc. may be interchanged.

In some embodiments, the chip 7200 further includes one or more memories 7203 for storing instructions. Alternatively, all or a portion of memory 7203 may be external to chip 7200.

The present disclosure also proposes a storage medium having stored thereon instructions that, when executed on a communication device 7100, cause the communication device 7100 to perform any of the above methods. Optionally, the storage medium is an electronic storage medium. Alternatively, the storage medium described above is a computer-readable storage medium, but is not limited thereto, and it may be a storage medium readable by other devices. Alternatively, the above-described storage medium may be a non-transitory (non-transitory) storage medium, but is not limited thereto, and it may also be a transitory storage medium.

The present disclosure also proposes a program product which, when executed by a communication device 7100, causes the communication device 7100 to perform any of the above methods. Optionally, the above-described program product is a computer program product.

The present disclosure also proposes a computer program which, when run on a computer, causes the computer to perform any of the above methods.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product comprises one or more computer programs. When the computer program is loaded and executed on a computer, the flow or functions described in accordance with the embodiments of the present disclosure are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer program may be stored in or transmitted from one computer readable storage medium to another, for example, by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means from one website, computer, server, or data center. The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), or the like.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

The foregoing is merely specific embodiments of the disclosure, but the protection scope of the disclosure is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the disclosure, and it is intended to cover the scope of the disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

1. A method of channel detection, the method comprising:

determining at least one target channel access mechanism;

and carrying out channel detection on the spectrum resources corresponding to the reference signals based on the target channel access mechanism, wherein the spectrum resources corresponding to the reference signals are shared spectrum resources.

2. The method of claim 1, wherein the target channel access mechanism comprises a first type of channel access mechanism, a second type of channel access mechanism, or a third type of channel access mechanism;

3. The method of claim 2, wherein the method further comprises:

4. A method as claimed in claim 3, wherein the method further comprises:

5. The method of claim 4, wherein the spectrum resource comprises at least two bandwidth units, the target channel access mechanism is one, and the one target channel access mechanism is used for the at least two bandwidth units;

6. The method of claim 5, wherein the determining at least one target channel access mechanism comprises:

7. The method of claim 6, wherein the determining a target channel access mechanism based on the period of the reference signal comprises at least one of:

8. The method of claim 4, wherein the spectrum resource comprises at least two bandwidth units, and the target channel access mechanism is at least two; the at least two target channel access mechanisms are for different bandwidth units.

9. The method of claim 8, wherein the number of target channel access mechanisms is two, the time periods required for channel detection by the two target channel access mechanisms are different, the target channel access mechanism with the longest time period required for channel detection among the two target channel access mechanisms is used for a first bandwidth unit, the target channel access mechanism with the shortest time period required for channel detection among the two target channel access mechanisms is used for a second bandwidth unit, and the target channel access mechanism with the longest time period required for channel detection among the two target channel access mechanisms is also used for a third bandwidth unit; wherein the first bandwidth unit is any one of the at least one bandwidth unit, the second bandwidth unit is a bandwidth unit immediately adjacent to the first bandwidth unit, and the third bandwidth unit is a bandwidth unit other than the first bandwidth unit and the second bandwidth unit;

10. The method of any of claims 2-9, wherein the second device initiates channel sharing to the first device, and wherein the determining at least one target channel access mechanism comprises at least one of:

11. The method according to any of claims 2-10, wherein the first type of channel access mechanism is contention window, CW, based channel detection;

the second type channel access mechanism is single channel detection;

the third type of channel access mechanism is not used for channel detection.

12. The method according to any of claims 2-11, wherein the second type of channel access mechanism comprises at least one of a first channel access mechanism, a second channel access mechanism;

wherein the first time period is longer than the second time period.

13. The method of any of claims 1-12, wherein the reference signal comprises at least one of:

Positioning reference signals PRS;

sounding reference signals, SRS, for positioning;

side uplink slpls;

SLSRS for positioning.

14. The method according to any of claims 1-13, wherein said determining at least one target channel access mechanism comprises:

15. A method of channel detection, the method comprising:

transmitting indication information, wherein the indication information is used for determining at least one target channel access mechanism; the target channel access mechanism is used for carrying out channel detection on spectrum resources corresponding to the reference signals; wherein, the spectrum resource corresponding to the reference signal is a shared spectrum resource.

16. The method of claim 15, wherein the target channel access mechanism comprises a first type of channel access mechanism, a second type of channel access mechanism, or a third type of channel access mechanism;

17. The method of claim 16, wherein the indication information is used to determine at least one target channel access mechanism, comprising any of:

18. The method of claim 17, wherein the indication information is used to determine at least one target channel access mechanism, comprising:

19. The method of claim 18, wherein the indication information is used to determine at least two target channel access mechanisms, comprising at least one of:

20. The method according to any of claims 15-19, wherein the first type of channel access mechanism is CW-based channel detection;

the second type channel access mechanism is single channel detection;

the third type of channel access mechanism is not used for channel detection.

21. The method according to any of claims 15-20, wherein the second type of channel access mechanism comprises at least one of a first channel access mechanism, a second channel access mechanism;

wherein the first time period is longer than the second time period.

22. The method of any of claims 15-21, wherein the reference signal comprises at least one of:

PRS；

SRS for positioning;

SL PRS；

SL SRS for positioning.

23. A channel detection method, applied to a communication system, the communication system including a first device and a third device, the method comprising at least one of:

the third device sends indication information to the first device, wherein the indication information is used for determining at least one target channel access mechanism; the target channel access mechanism is used for carrying out channel detection on spectrum resources corresponding to the reference signals; wherein, the spectrum resource corresponding to the reference signal is shared spectrum resource;

The first device determining at least one target channel access mechanism based on the indication information;

24. A first device, comprising:

25. A third device, comprising:

a sending module, configured to send indication information to a first device, where the indication information is used to determine at least one target channel access mechanism; the target channel access mechanism is used for carrying out channel detection on spectrum resources corresponding to the reference signals; wherein, the spectrum resource corresponding to the reference signal is a shared spectrum resource.

26. A communication device, comprising:

one or more processors;

wherein the processor is configured to invoke instructions to cause the communication device to perform the channel detection method of any of claims 1-13, 14-26.