WO2025035335A1 - Procédés de communication de liaison latérale, terminaux et support de stockage - Google Patents

Procédés de communication de liaison latérale, terminaux et support de stockage Download PDF

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Publication number
WO2025035335A1
WO2025035335A1 PCT/CN2023/112771 CN2023112771W WO2025035335A1 WO 2025035335 A1 WO2025035335 A1 WO 2025035335A1 CN 2023112771 W CN2023112771 W CN 2023112771W WO 2025035335 A1 WO2025035335 A1 WO 2025035335A1
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WIPO (PCT)
Prior art keywords
psfch
psfchs
power
sent
carrier
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PCT/CN2023/112771
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English (en)
Chinese (zh)
Inventor
赵群
赵文素
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Beijing Xiaomi Mobile Software Co Ltd
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Beijing Xiaomi Mobile Software Co Ltd
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Application filed by Beijing Xiaomi Mobile Software Co Ltd filed Critical Beijing Xiaomi Mobile Software Co Ltd
Priority to CN202380010638.0A priority Critical patent/CN119923935A/zh
Priority to PCT/CN2023/112771 priority patent/WO2025035335A1/fr
Publication of WO2025035335A1 publication Critical patent/WO2025035335A1/fr
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/40—Resource management for direct mode communication, e.g. D2D or sidelink

Definitions

  • the present disclosure relates to the field of communication technology, and in particular to a side link communication method, a terminal, and a storage medium.
  • PSCCH physical sidelink control channels
  • PSSCH physical sidelink shared channels
  • the embodiments of the present disclosure provide a side link communication method, a terminal, and a storage medium.
  • a side link communication method comprising: using a first power to send a side link feedback channel PSFCH corresponding to multiple carriers, wherein there is a time domain overlap between the PSFCHs of at least some carriers among the PSFCHs corresponding to the multiple carriers, and the first power is less than or equal to a pre-set first maximum transmission power.
  • a side link communication method comprising: receiving a side link feedback channel PSFCH corresponding to multiple carriers transmitted using a first power, wherein there is a time domain overlap between the PSFCHs of at least some carriers among the PSFCHs corresponding to the multiple carriers, and the first power is less than or equal to a pre-set first maximum transmission power.
  • a side link communication method comprising: a first terminal sends a side link feedback channel PSFCH corresponding to multiple carriers using a first power, wherein there is a time domain overlap between the PSFCHs of at least some carriers among the PSFCHs corresponding to the multiple carriers, and the first power is less than or equal to a pre-set first maximum transmission power; and a second terminal receives the PSFCHs corresponding to the multiple carriers sent by the first terminal using the first power.
  • a first terminal comprising: a transceiver module; the transceiver module is used to send a side link feedback channel PSFCH corresponding to multiple carriers using a first power, wherein there is a time domain overlap between the PSFCHs of at least some carriers among the PSFCHs corresponding to the multiple carriers, and the first power is less than or equal to a pre-set first maximum transmission power.
  • a second terminal comprising: a transceiver module; the transceiver module is used to receive a side link feedback channel PSFCH corresponding to multiple carriers transmitted using a first power, wherein there is a time domain overlap between the PSFCHs of at least some carriers among the PSFCHs corresponding to the multiple carriers, and the first power is less than or equal to a pre-set first maximum transmission power.
  • a first terminal comprising: one or more processors; wherein the first terminal is used to execute the first aspect and any one of the side link communication methods in the first aspect.
  • a second terminal comprising: one or more processors; wherein the second terminal is used to execute the second aspect and any one of the side link communication methods in the second aspect.
  • a communication system comprising a first terminal and a second terminal, wherein the first terminal is configured to implement the first aspect and any one of the side link communication methods in the first aspect, and the second terminal is configured to implement the second aspect and any one of the side link communication methods in the second aspect.
  • a storage medium which stores instructions.
  • the communication device executes a side link communication method such as the first aspect and any one of the items in the first aspect or the second aspect and any one of the items in the second aspect.
  • the present disclosure can send PSFCHs corresponding to multiple carriers through a first power, thereby sending a corresponding number of PSFCHs according to an appropriate power in a carrier aggregation scenario, thereby improving the side link communication efficiency.
  • FIG1 is a schematic diagram of a communication system architecture according to an embodiment of the present disclosure.
  • FIG2 is a schematic diagram of an interaction of a side link communication method according to an embodiment of the present disclosure.
  • Fig. 3a is a flow chart of a side link communication method according to an exemplary embodiment.
  • Fig. 3b is a flow chart of another side link communication method according to an exemplary embodiment.
  • Fig. 4 is a flow chart of yet another side link communication method according to an exemplary embodiment.
  • Fig. 5 is a flow chart of yet another side link communication method according to an exemplary embodiment.
  • Fig. 6a is a schematic diagram of a side link communication device according to an exemplary embodiment.
  • Fig. 6b is a schematic diagram of another side link communication device according to an exemplary embodiment.
  • Fig. 7a is a schematic diagram of a communication device according to an exemplary embodiment.
  • Fig. 7b is a schematic diagram of a chip according to an exemplary embodiment.
  • the embodiments of the present disclosure provide a side link communication method, a terminal, and a storage medium.
  • an embodiment of the present disclosure proposes a side link communication method, which is executed by a first terminal, and the method includes: using a first power to send a side link feedback channel PSFCH corresponding to multiple carriers, wherein there is a time domain overlap between the PSFCHs of at least some carriers among the PSFCHs corresponding to the multiple carriers, and the first power is less than or equal to a pre-set first maximum transmission power.
  • the PSFCHs corresponding to multiple carriers can be sent at the first power, so that a corresponding number of PSFCHs can be sent at an appropriate power in a carrier aggregation scenario, thereby improving the side link communication efficiency.
  • the PSFCHs corresponding to multiple carriers have y1 PSFCHs to be sent; the method also includes: if the total transmission power of the y1 PSFCHs to be sent is greater than a pre-set first maximum transmission power, power adjustment is performed on the y1 PSFCHs to be sent or the PSFCHs are discarded to obtain y2 PSFCHs, wherein the total transmission power of the y2 PSFCHs is the first power, and y2 is less than or equal to y1.
  • the power of y1 PSFCHs to be transmitted can be adjusted or discarded, so that the terminal can transmit a corresponding number of PSFCHs at an appropriate power in a carrier aggregation scenario, thereby improving the side link communication efficiency.
  • the method also includes: determining y3 PSFCHs to be sent, where y3 is greater than a first threshold; based on the priorities corresponding to the PSFCHs, discarding the PSFCHs with the lowest priority in turn from the y3 PSFCHs to be sent, to obtain y1 PSFCHs to be sent, where y1 is less than or equal to the first threshold.
  • part of the PSFCHs can be discarded, so that the terminal can send a corresponding number of PSFCHs at an appropriate power in a carrier aggregation scenario, thereby improving the side link communication efficiency.
  • At least one bandwidth corresponding to sending PSFCH corresponds to a second threshold respectively, and the sum of the second thresholds corresponding to each bandwidth is equal to the first threshold, wherein the bandwidth includes at least one of a frequency band and a carrier, and each frequency band includes at least one carrier.
  • thresholds in various dimensions are provided to be applicable to various scenarios.
  • the second threshold is the maximum number of PSFCHs corresponding to the Rth bandwidth, where R is a positive integer; based on the priority corresponding to the PSFCH, the PSFCH with the lowest priority is discarded in turn from the y3 PSFCHs to be sent, and y1 PSFCHs to be sent are obtained, including: according to the priority corresponding to the PSFCH, the PSFCH with the lowest priority is discarded in turn from the PSFCHs to be sent corresponding to the Rth bandwidth, until the number of PSFCHs corresponding to the Rth bandwidth is less than or equal to the maximum number of PSFCHs corresponding to the Rth bandwidth, and y4 PSFCHs to be sent corresponding to the Rth bandwidth are obtained; wherein, among all the bandwidths occupied by sending PSFCH, the sum of y4 corresponding to each bandwidth is equal to y1.
  • the power of PSFCH can be adjusted and/or discarded for each bandwidth separately, so as to determine the appropriate power to send the corresponding number of PSFCHs on different bandwidths, thereby improving the side link communication efficiency.
  • the first threshold is determined based on terminal capabilities of the terminal itself.
  • the terminal can determine the first threshold for sending different bandwidths occupied by PSFCHs corresponding to multiple carriers according to its own terminal capabilities, so as to be applicable to terminals with different capabilities.
  • power adjustment or PSFCH discarding is performed on y1 PSFCHs to be sent, including: if the total transmission power of the PSFCH to be sent corresponding to the R-th bandwidth is greater than the second maximum transmission power corresponding to the R-th bandwidth, power adjustment or PSFCH discarding is performed on the PSFCH to be sent corresponding to the R-th bandwidth; wherein, in all bandwidths occupied by sending PSFCH, the sum of the second maximum transmission powers corresponding to each bandwidth is equal to the first maximum transmission power; the second maximum transmission power is based on high-level signaling configuration, or the second maximum transmission power is determined based on the total transmission power of the PSFCH to be sent corresponding to all bandwidths, the total transmission power of the PSFCH to be sent corresponding to the R-th bandwidth and the first maximum transmission power, and R is a positive integer.
  • power control may be performed for the corresponding maximum transmission power on different bandwidths, thereby implementing PSFCH power adjustment and/or discarding for different bandwidths to achieve more accurate side link communication.
  • the bandwidth includes a frequency band
  • the total transmit power of the PSFCH corresponding to the Wth frequency band is determined based on the total transmit power of the PSFCH corresponding to each carrier in the Wth frequency band, where W is a positive integer.
  • a method for determining the total transmission power of a frequency band is provided, so as to transmit the PSFCH on the frequency band based on the transmission power, thereby improving the side link communication efficiency.
  • the method further includes: discarding all PSFCHs to be sent on a specific carrier, wherein the specific carrier is a carrier in the Wth frequency band that satisfies the first condition, and W is a positive integer; the first condition includes at least one of the following: sending multiple PSFCHs simultaneously; Carrier restrictions; Carrier combination requirements; RF retuning time restrictions.
  • a plurality of ways to determine whether to discard the PSFCH to be sent on a specific carrier are provided, so as to be applicable to discarding the PSFCH to be sent on multiple carriers in a variety of different scenarios, so as to achieve more accurate side link communication.
  • the first condition includes the restriction of sending multiple carriers simultaneously; discarding all PSFCHs to be sent on a specific carrier includes: according to the priority of the PSFCHs to be sent in the carrier, discarding the PSFCHs corresponding to the carriers with the lowest priority of the PSFCHs to be sent from the Wth frequency band in sequence; until the number of carriers in the Wth frequency band is less than or equal to the number of carriers with the restriction of sending multiple carriers simultaneously.
  • a method of discarding the PSFCH to be transmitted on a specific carrier in the case of restriction on simultaneously transmitting multiple carriers is provided to achieve more accurate side link communication.
  • the power of a part of the PSFCH transmissions may be reduced and/or discarded to ensure that the terminal can send a corresponding number of PSFCHs at an appropriate power in a carrier aggregation scenario, thereby improving the side link communication efficiency.
  • the terminal may determine, based on its own implementation, to reduce the power of and/or discard one or more PSFCHs of the same priority level to achieve more efficient side link communication.
  • the PSFCH corresponding to the primary carrier or the default carrier is not power reduced and/or discarded.
  • power reduction and/or discarding may not be performed on some carriers, thereby ensuring that the PSFCH on the corresponding carrier can be sent, thereby improving the efficiency and accuracy of side link communications.
  • y2 is equal to y1; the total transmission power of the PSFCH corresponding to the x-th carrier is determined by the number of PSFCHs corresponding to the x-th carrier and the PSFCH transmission power corresponding to the x-th carrier, where x is a positive integer, and the PSFCH transmission power corresponding to the x-th carrier represents the transmission power of a single PSFCH on the x-th carrier. It can be understood that the x-th carrier is one of the multiple carriers transmitted by the terminal.
  • the terminal can reduce the power of all PSFCHs in the carrier so that a corresponding number of PSFCHs can be sent at an appropriate power in a carrier aggregation scenario without discarding the PSFCH, thereby improving the side link communication efficiency.
  • the PSFCH transmit power corresponding to the x-th carrier is determined based on the first PSFCH transmit power and the second PSFCH transmit power; wherein, the first PSFCH transmit power indicates that the terminal determines the transmit power of a single PSFCH on the x-th carrier, the second PSFCH transmit power indicates the configured transmit power of a single PSFCH on the x-th carrier, the first PSFCH transmit power is determined based on the second PSFCH transmit power, the total transmit power of the PSFCH corresponding to the x-th carrier and the first maximum transmit power, and the second PSFCH transmit power is configured by the network device or pre-configured by the terminal.
  • a method for determining the average transmission power of the PSFCH corresponding to the carrier is provided, so that the terminal can perform corresponding power reduction based on the power, and send a corresponding number of PSFCHs based on the power, thereby improving the side link communication efficiency.
  • a side link communication method is provided, which is executed by a second terminal, and the method includes: receiving a side link feedback channel PSFCH corresponding to multiple carriers transmitted using a first power, wherein there is a time domain overlap between the PSFCHs of at least some carriers among the PSFCHs corresponding to the multiple carriers, and the first power is less than or equal to a pre-set first maximum transmission power.
  • the PSFCHs corresponding to multiple carriers can be sent at the first power, so that a corresponding number of PSFCHs can be sent at an appropriate power in a carrier aggregation scenario, thereby improving the side link communication efficiency.
  • the PSFCH corresponding to multiple carriers has y1 PSFCHs to be sent; the received PSFCHs corresponding to multiple carriers are determined in the following way: if the total transmission power of y1 PSFCHs to be sent is greater than a preset first maximum transmission power, power adjustment is performed on the y1 PSFCHs to be sent or the PSFCHs are discarded to obtain y2 PSFCHs, where the total transmission power of y2 PSFCHs is the first power, and y2 is less than or equal to y1.
  • the PSFCHs corresponding to the received multiple carriers are determined in the following manner: y3 PSFCHs to be sent are determined, where y3 is greater than a first threshold; based on the priority corresponding to the PSFCHs, the PSFCHs with the lowest priority are discarded in turn from the y3 PSFCHs to be sent, to obtain y1 PSFCHs to be sent, where y1 is less than or equal to the first threshold.
  • At least one bandwidth corresponding to sending PSFCH corresponds to a second threshold respectively, and the sum of the second thresholds corresponding to each bandwidth is equal to the first threshold, wherein the bandwidth includes at least one of a frequency band and a carrier, and each frequency band includes at least one carrier.
  • the second threshold is the maximum number of PSFCHs corresponding to the Rth bandwidth, where R is a positive integer; based on the priority corresponding to the PSFCH, the PSFCH with the lowest priority is discarded in turn from the y3 PSFCHs to be sent, and y1 PSFCHs to be sent are obtained, including: according to the priority corresponding to the PSFCH, the PSFCH with the lowest priority is discarded in turn from the PSFCHs to be sent corresponding to the Rth bandwidth, until the number of PSFCHs corresponding to the Rth bandwidth is less than or equal to the maximum number of PSFCHs corresponding to the Rth bandwidth, and y4 PSFCHs to be sent corresponding to the Rth bandwidth are obtained; wherein, among all the bandwidths occupied by sending PSFCH, the sum of y4 corresponding to each bandwidth is equal to y1.
  • the first threshold is determined based on terminal capabilities of the terminal itself.
  • power adjustment or PSFCH discarding is performed on y1 PSFCHs to be sent, including: if the total transmission power of the PSFCH to be sent corresponding to the R-th bandwidth is greater than the second maximum transmission power corresponding to the R-th bandwidth, power adjustment or PSFCH discarding is performed on the PSFCH to be sent corresponding to the R-th bandwidth; wherein, in all bandwidths occupied by sending PSFCH, the sum of the second maximum transmission powers corresponding to each bandwidth is equal to the first maximum transmission power; the second maximum transmission power is based on high-level signaling configuration, or the second maximum transmission power is determined based on the total transmission power of the PSFCH to be sent corresponding to all bandwidths, the total transmission power of the PSFCH to be sent corresponding to the R-th bandwidth and the first maximum transmission power, and R is a positive integer.
  • the bandwidth includes a frequency band
  • the total transmit power of the PSFCH corresponding to the Wth frequency band is determined based on the total transmit power of the PSFCH corresponding to each carrier in the Wth frequency band, where W is a positive integer.
  • the PSFCHs corresponding to the received multiple carriers are determined in the following manner: discarding all PSFCHs to be sent on a specific carrier, where the specific carrier is a carrier in the Wth frequency band that satisfies the first condition, and W is a positive integer; the first condition includes at least one of the following: restrictions on simultaneous transmission of multiple carriers; carrier combination requirements; and RF retuning time limits.
  • the first condition includes the restriction of sending multiple carriers simultaneously; discarding all PSFCHs to be sent on a specific carrier includes: according to the priority of the PSFCHs to be sent in the carrier, discarding the PSFCHs corresponding to the carriers with the lowest priority of the PSFCHs to be sent from the Wth frequency band in sequence; until the number of carriers in the Wth frequency band is less than or equal to the number of carriers with the restriction of sending multiple carriers simultaneously.
  • the PSFCH corresponding to the primary carrier or the default carrier is not power reduced and/or discarded.
  • y2 is equal to y1; the total transmission power of the PSFCH corresponding to the x-th carrier is determined by the number of PSFCHs corresponding to the x-th carrier and the PSFCH transmission power corresponding to the x-th carrier, where x is a positive integer, and the PSFCH transmission power corresponding to the x-th carrier represents the transmission power of a single PSFCH on the x-th carrier. It can be understood that the x-th carrier is one of the multiple carriers transmitted by the terminal.
  • the PSFCH transmit power corresponding to the x-th carrier is determined based on the first PSFCH transmit power and the second PSFCH transmit power; wherein, the first PSFCH transmit power indicates that the terminal determines the transmit power of a single PSFCH on the x-th carrier, the second PSFCH transmit power indicates the configured transmit power of a single PSFCH on the x-th carrier, the first PSFCH transmit power is determined based on the second PSFCH transmit power, the total transmit power of the PSFCH corresponding to the x-th carrier and the first maximum transmit power, and the second PSFCH transmit power is configured by the network device or pre-configured by the terminal.
  • a side link communication method comprising: a first terminal sends a side link feedback channel PSFCH corresponding to multiple carriers using a first power, wherein there is a time domain overlap between the PSFCHs of at least some carriers among the PSFCHs corresponding to the multiple carriers, and the first power is less than or equal to a pre-set first maximum transmission power; and a second terminal receives the PSFCHs corresponding to the multiple carriers sent by the first terminal using the first power.
  • the PSFCHs corresponding to multiple carriers can be sent at the first power, so that a corresponding number of PSFCHs can be sent at an appropriate power in a carrier aggregation scenario, thereby improving the side link communication efficiency.
  • a first terminal comprising: a transceiver module; the transceiver module is used to send a side link feedback channel PSFCH corresponding to multiple carriers using a first power, wherein there is a time domain overlap between the PSFCHs of at least some carriers among the PSFCHs corresponding to the multiple carriers, and the first power is less than or equal to a pre-set first maximum transmission power.
  • the PSFCHs corresponding to multiple carriers can be sent at the first power, so that a corresponding number of PSFCHs can be sent at an appropriate power in a carrier aggregation scenario, thereby improving the side link communication efficiency.
  • a second terminal including: a transceiver module; the transceiver module is used to receive A side link feedback channel PSFCH corresponding to multiple carriers is transmitted with a first power, wherein there is a time domain overlap between the PSFCHs of at least some carriers among the PSFCHs corresponding to the multiple carriers, and the first power is less than or equal to a pre-set first maximum transmission power.
  • the PSFCHs corresponding to multiple carriers can be sent at the first power, so that a corresponding number of PSFCHs can be sent at an appropriate power in a carrier aggregation scenario, thereby improving the side link communication efficiency.
  • a first terminal comprising: one or more processors; wherein the first terminal is used to execute the first aspect and any one of the side link communication methods in the first aspect.
  • the PSFCHs corresponding to multiple carriers can be sent at the first power, so that a corresponding number of PSFCHs can be sent at an appropriate power in a carrier aggregation scenario, thereby improving the side link communication efficiency.
  • a second terminal comprising: one or more processors; wherein the second terminal is used to execute the second aspect and any one of the side link communication methods in the second aspect.
  • the PSFCHs corresponding to multiple carriers can be sent at the first power, so that a corresponding number of PSFCHs can be sent at an appropriate power in a carrier aggregation scenario, thereby improving the side link communication efficiency.
  • a communication system comprising a first terminal and a second terminal, wherein the first terminal is configured to implement the first aspect and any one of the side link communication methods in the first aspect, and the second terminal is configured to implement the second aspect and any one of the side link communication methods in the second aspect.
  • the PSFCHs corresponding to multiple carriers can be sent at the first power, so that a corresponding number of PSFCHs can be sent at an appropriate power in a carrier aggregation scenario, thereby improving the side link communication efficiency.
  • a storage medium stores instructions, and when the instructions are executed on a communication device, the communication device executes a side link communication method such as the first aspect and any one of the items in the first aspect or the second aspect and any one of the items in the second aspect.
  • the PSFCHs corresponding to multiple carriers can be sent at the first power, so that a corresponding number of PSFCHs can be sent at an appropriate power in a carrier aggregation scenario, thereby improving the side link communication efficiency.
  • the embodiments of the present disclosure propose a program product.
  • the program product is executed by a communication device
  • the communication device executes the method described in the optional implementation manner of the first aspect or the second aspect.
  • the embodiments of the present disclosure propose a computer program, which, when executed on a computer, enables the computer to execute the method described in the optional implementation of the first aspect or the second aspect.
  • the embodiments of the present disclosure provide a chip or a chip system, which includes a processing circuit configured to execute the method described in the optional implementation of the first or second aspect above.
  • the terminal, access network device, first network element, other network elements, core network device, communication system, storage medium, program product, computer program, chip or chip system involved in each embodiment of the present disclosure are used to execute the method proposed in the embodiment of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects in the corresponding method, which will not be repeated here.
  • the disclosed embodiments provide a side link communication method, a terminal, and a storage medium.
  • the terms side link communication method, information processing method, communication method, etc. can be interchangeable
  • the terms side link communication device, information processing device, communication device, etc. can be interchangeable
  • the terms information processing system, communication system, etc. can be interchangeable.
  • each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined.
  • a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged.
  • the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined, for example, some or all of the steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.
  • elements expressed in the singular form such as “a”, “an”, “the”, “above”, “said”, “aforementioned”, “this”, etc., may mean “one and only one", or “one or more”, “at least one”, etc.
  • the noun after the article may be understood as a singular expression or a plural expression.
  • plurality refers to two or more.
  • the terms "at least one of”, “one or more”, “a plurality of”, “multiple”, etc. can be used interchangeably.
  • the recording method of "in response to a situation A, in response to another situation B” may include the following technical solutions according to the situation: in some embodiments, A (execute A independently of B); in some embodiments, B (execute B independently of A); in some embodiments, select execution from A and B (A and B are selectively executed); in some embodiments, A and B (both A and B are executed).
  • a branch such as A, B, C, etc.
  • the recording method of "A or B” may include the following technical solutions according to the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed).
  • A A is executed independently of B
  • B B is executed independently of A
  • execution is selected from A and B (A and B are selectively executed).
  • prefixes such as “first” and “second” in the embodiments of the present disclosure are only used to distinguish different description objects, and do not constitute restrictions on the position, order, priority, quantity or content of the description objects.
  • the statement of the description object refers to the description in the context of the claims or embodiments, and should not constitute unnecessary restrictions due to the use of prefixes.
  • the description object is a "field”
  • the ordinal number before the "field” in the "first field” and the "second field” does not limit the position or order between the "fields”
  • the "first” and “second” do not limit whether the "fields” they modify are in the same message, nor do they limit the order of the "first field” and the "second field”.
  • the description object is a "level”
  • the ordinal number before the "level” in the “first level” and the “second level” does not limit the priority between the "levels”.
  • the number of description objects is not limited by the ordinal number, and can be one or more. Taking the "first device” as an example, the number of "devices” can be one or more.
  • the objects modified by different prefixes may be the same or different. For example, if the description object is "device”, then the “first device” and the “second device” may be the same device or different devices, and their types may be the same or different. For another example, if the description object is "information”, then the "first information” and the “second information” may be the same information or different information, and their contents may be the same or different.
  • “including A”, “comprising A”, “used to indicate A”, and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.
  • terms such as “greater than”, “greater than or equal to”, “not less than”, “more than”, “more than or equal to”, “not less than”, “higher than”, “higher than or equal to”, “not lower than”, and “above” can be replaced with each other, and terms such as “less than”, “less than or equal to”, “not greater than”, “less than”, “less than or equal to”, “no more than”, “lower than”, “lower than or equal to”, “not higher than”, and “below” can be replaced with each other.
  • devices and equipment may be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they may also be understood as “equipment”, “device”, “circuit”, “network element”, “node”, “function”, “unit”, “section”, “system”, “network”, “chip”, “chip system”, “entity”, “subject”, etc.
  • network can be interpreted as devices included in the network, such as access network equipment, core network equipment, etc.
  • access network device may also be referred to as “radio access network device (RAN device)", “base station (BS)”, “radio base station (radio base station)”, “fixed station” and in some embodiments may also be understood as “node”, “access point (access point)”, “transmission point (TP)”, “reception point (RP)”, “transmission and/or reception point (transmission/reception point, TRP)", “panel”, “antenna panel”, “antenna array”, “cell”, “macro cell”, “small cell”, “femto cell”, “pico cell”, “sector”, “cell group”, “serving cell”, “carrier”, “component carrier”, “bandwidth part (bandwidth part, BWP)", etc.
  • RAN device radio access network device
  • base station base station
  • RP radio base station
  • TRP transmission and/or reception point
  • terminal or “terminal device” may be referred to as "user equipment (UE)", “user terminal (user terminal)”, “mobile station (MS)”, “mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc.
  • UE user equipment
  • MS mobile station
  • MT mobile terminal
  • acquisition of data, information, etc. may comply with the laws and regulations of the country where the data is obtained.
  • data, information, etc. may be obtained with the user's consent.
  • each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment. Any combination of elements, rows, or columns may also be implemented as independent embodiments.
  • FIG1 is a schematic diagram of a communication system architecture according to an embodiment of the present disclosure.
  • a communication system 100 includes a terminal 101 and a network device 102 .
  • the terminal 101 includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited to these.
  • a mobile phone a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device
  • the network device 102 may include at least one of an access network device and a core network device.
  • the access network device is, for example, a node or device that accesses a terminal to a wireless network.
  • the access network device may include an evolved Node B (eNB), a next generation evolved Node B (ng-eNB), a next generation Node B (gNB), a node B (NB), a home node B (HNB), a home evolved node B (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band 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, and at least one of an access node in a Wi-Fi system, but is not limited thereto.
  • eNB evolved Node B
  • ng-eNB next generation evolved Node B
  • gNB next generation Node B
  • NB node
  • the technical solution of the present disclosure may be applicable to the Open RAN architecture.
  • the interfaces between access network devices or within access network devices involved in the embodiments of the present disclosure may become internal interfaces of Open RAN, and the processes and information interactions between these internal interfaces may be implemented through software or programs.
  • the access network device may be composed of a centralized unit (central unit, CU) and a distributed unit (distributed unit, DU), wherein the CU may also be called a control unit (control unit).
  • the CU-DU structure may be used to split the protocol layer of the access network device, with some functions of the protocol layer being centrally controlled by the CU, and the remaining part or all of the functions of the protocol layer being distributed in the DU, and the DU being centrally controlled by the CU, but not limited to this.
  • the core network device may be a device including one or more network elements, or may be multiple devices or device groups, each including all or part of the one or more network elements.
  • the network element may be virtual or physical.
  • the core network may include, for example, at least one of the Evolved Packet Core (EPC), the 5G Core Network (5GCN), and the Next Generation Core (NGC).
  • EPC Evolved Packet Core
  • 5GCN 5G Core Network
  • NGC Next Generation Core
  • the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure.
  • a person of ordinary skill in the art can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.
  • the following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1 , or part of the subject, but are not limited thereto.
  • the subjects shown in FIG1 are examples, and the communication system may include all or part of the subjects in FIG1 , or may include other subjects other than FIG1 , and the number and form of the subjects are arbitrary, and the subjects may be physical or virtual, and the connection relationship between the subjects is an example, and the subjects may be connected or disconnected, and the connection may be in any manner, and may be a direct connection or an indirect connection, and may be a wired connection or a wireless connection.
  • LTE Long Term Evolution
  • LTE-A LTE-Advanced
  • SUPER 3G IMT-Advanced
  • 4th generation mobile communication system 4th generation mobile communication system
  • 5G 5th generation mobile communication system
  • 5G new radio NR
  • future radio access FX
  • new radio access technology RAT
  • new radio NR
  • new radio access NX
  • future generation radio access FX
  • GSM Global System for Mobile communications
  • GSM registered trademark
  • CDMA2000 Code Division Multiple Access
  • UMB Ultra Mobile Broadband
  • IEEE 802.11 Wi-Fi (registered trademark)
  • IEEE 802.16 WiMAX (registered trademark)
  • IEEE 802.20 Ultra-WideBand (UWB), Bluetooth (registered trademark)
  • Public Land Mobile Network PLMN) network
  • D2D Device-to-Device
  • M2M Machine-to-Machine
  • IoT Vehicle-to-Everything
  • V2X Vehicle-to-Everything
  • SL LTE sidelink
  • CA carrier aggregation
  • the PSCCH or PSSCH transmissions of multiple carriers overlap in the time domain, and the total transmission power of the multiple carriers exceeds the maximum transmission power determined by the terminal, that is, PCMAX .
  • the transmission on the corresponding carrier with a large priority value can be reduced in power or dropped, and the process is repeated. Until the total transmission power does not exceed PCMAX .
  • PCMAX is determined by the terminal based on its own configuration.
  • the large priority value mentioned above can be considered as the maximum priority value.
  • the terminal can adjust the transmit power of the SL transmission with sidelink control information (SCI).
  • SCI sidelink control information
  • the "priority" field of the SCI can be set to the maximum value of all "priority" values of the overlapping SL transmissions. In this case, the calculation of the adjustment of the SL transmit power is not specified. If the transmit power still exceeds the above-mentioned preset threshold after the power adjustment, the terminal shall discard the SL transmission with the largest "priority" field in its SCI. And repeat the process on the carrier that is not discarded. When the SL transmissions overlapping in the time domain on two or more carriers have the same "priority" field value, it is not specified which SL transmission the terminal adjusts.
  • NTX ,PSFCH Nsch ,T,XPS .
  • NTX ,PSFCH represents the number of PSFCHs actually sent by the terminal
  • Nsch ,TX,PSFCH represents the number of PSFCHs expected to be sent by the terminal.
  • NTX ,PSFCH should be equal to Nsch ,TX,PSFCH .
  • PPSFCH,K (i) PPSFC ,Hone .
  • PPSFCH,k (i) represents the transmit power of K PSFCHs with priority i
  • PPSFCH,one represents the transmit power of one PSFCH determined by the terminal.
  • P PSFCH,one can be obtained by formula 1.
  • P PSFCH,one P 0,PSFCH +10log 10 (2 ⁇ )+ ⁇ PSFCH ⁇ PL ...Formula 1
  • P 0,PSFCH represents the target received power
  • ⁇ represents the corresponding subcarrier spacing (SCS) size
  • ⁇ is the path loss compensation coefficient
  • PL represents the path loss value of the corresponding path loss (PL).
  • the unit of P PSFCH,one can be dBm.
  • Mi can represent the total number of PSFCHs with priority i.
  • K can be The maximum value of. Wherein, i is the priority value, and the smaller the priority value, the higher the priority. It can be determined that the priority value when the maximum number of PSFCHs reaches when the sum of the transmit powers of multiple PSFCHs with priority values less than or equal to i needs to be less than or equal to PCMAX , that is, the K mentioned above.
  • the situation mainly corresponds to when the priority value is less than or equal to K+1, the number of sent PSFCHs exceeds the maximum number supported by the terminal, and when the priority value is less than or equal to K, the number of sent PSFCHs does not exceed the maximum number supported by the terminal.
  • the terminal can still send some of the PSFCHs, and the number of sent PSFCHs does not exceed the maximum number supported by the terminal.
  • the number of multiple PSFCHs that need to be fed back is greater than the maximum number supported by the terminal, and the total transmit power of the terminal is less than or equal to PCMAX .
  • NTX ,PSFCH NMAX ,PSFCH .
  • NMAX ,PSFCH indicates the maximum number of PSFCHs supported by the terminal.
  • the power control parameters for PSFCH can be located in a specific field.
  • the specific field can be SL-ResourcePoolIE. Therefore, it can be considered to be configured for each resource pool.
  • multiple resource pools with overlapping PSFCH resources are fixed. These resource pools The power control parameters in are configured to the same value.
  • the number of PSFCHs to be sent can also be determined.
  • power control parameters for different carriers may be configured to different values.
  • FIG2 is a schematic diagram of a side link communication method interaction according to an embodiment of the present disclosure.
  • the present disclosure embodiment relates to a side link communication method, which is used in a communication system 100, and the method includes:
  • Step S2101 The first terminal determines the PSFCH to be sent and adjusts the PSFCH to be sent.
  • the first terminal may determine a plurality of PSFCHs to be sent and a transmit power required to send the number of PSFCHs.
  • the first terminal may determine whether to adjust the PSFCHs to be sent and the manner in which to adjust the PSFCHs to be sent based on the relationship between the number of PSFCHs to be sent, the transmit power, and the maximum number of transmits and the maximum transmit power supported by the terminal.
  • the multiple PSFCHs that the terminal needs to send are PSFCHs corresponding to multiple carriers.
  • the terminal needs to send there is time domain overlap between the PSFCHs of at least some carriers.
  • the terminal needs to send PSFCHs corresponding to five carriers
  • the PSFCHs corresponding to any two, three, four or five carriers overlap in the time domain.
  • the number of the multiple PSFCHs that the terminal needs to send may be y1, where y1 is less than or equal to the maximum number of PSFCHs that the terminal is allowed to send.
  • the number of the multiple PSFCHs that the terminal needs to send may be y3, where y3 is greater than the maximum number of PSFCHs that the terminal is allowed to send.
  • the PSFCH that the first terminal needs to send may be the PSFCH corresponding to multiple carriers.
  • the first terminal may be the terminal 101 mentioned above.
  • the first terminal needs to send y3 PSFCHs.
  • the first terminal can discard the PSFCHs with the lowest priority from the y3 PSFCHs to be sent in turn according to the priorities corresponding to the PSFCHs, and obtain y1 PSFCHs to be sent.
  • y3 is greater than the first threshold
  • y1 is less than or equal to the first threshold.
  • the first terminal can determine the PSFCH with the lowest priority among the 10 PSFCHs and discard the PSFCH.
  • the number of PSFCHs remaining is 9, which is still greater than the first threshold.
  • the first terminal can determine the PSFCH with the lowest priority among the remaining 9 PSFCHs and discard the PSFCH.
  • the number of PSFCHs remaining is 8, which is the same as the first threshold.
  • the first terminal stops discarding PSFCH. At this time, y1 is 8.
  • the first threshold may represent the maximum number of PSFCHs supported by the terminal for transmission, for example, it may be recorded as N MAX,PSFCH .
  • the first threshold may be determined by the terminal based on its own terminal capabilities. For example, the terminal determines the maximum number of PSFCHs supported by the terminal based on the current power, hardware configuration, software configuration, etc. Of course, the specific terminal can make any selection based on the actual situation, and this disclosure does not limit it.
  • the number of PSFCHs that the first terminal needs to send is, for example, y3.
  • y3 is greater than N MAX,PSFCH , it means that the first terminal can only send N MAX,PSFCH PSFCHs at most. Therefore, the first terminal needs to adjust the y3 PSFCHs. For example, the first terminal discards the PSFCH with the lowest priority from the y3 PSFCHs in turn based on the priority corresponding to the PSFCH.
  • the first terminal can determine the priority of the corresponding PSFCH according to the priority value of sending the PSFCH. Among them, the larger the priority value, the lower the priority.
  • the first terminal may preferentially discard the PSFCH with the largest priority value, and determine again whether the number of PSFCHs after discarding is greater than N MAX,PSFCH . If the number of PSFCHs after discarding is greater than N MAX,PSFCH , the PSFCH with the largest priority value among the remaining PSFCHs, that is, the PSFCH with the lowest priority, is discarded until the number of remaining PSFCHs is less than or equal to N MAX,PSFCH .
  • the number may be y1, in which case y1 may generally be equal to N MAX,PSFCH .
  • At least one bandwidth corresponding to the transmission of the PSFCH corresponds to a second threshold value, and the sum of the second threshold values corresponding to the respective bandwidths is equal to the first threshold value.
  • the bandwidth may include at least one of a frequency band and a carrier.
  • a frequency band may be The at least one carrier wave is included.
  • the sum of the second thresholds corresponding to the respective bandwidths may be less than or equal to the first threshold.
  • a separate third threshold may be corresponding to each frequency band.
  • the third threshold is the upper second threshold.
  • the sum of the third thresholds corresponding to each frequency band may be less than or equal to the first threshold.
  • a separate fourth threshold may be corresponding to each carrier.
  • the fourth threshold is the upper second threshold.
  • the sum of the fourth thresholds corresponding to each carrier may be less than or equal to the first threshold.
  • the second threshold may be the second threshold corresponding to the Rth bandwidth, that is, the second threshold may be the maximum number of PSFCHs corresponding to the Rth bandwidth.
  • R is a positive integer.
  • the maximum number of PSFCHs corresponding to the Rth bandwidth indicates the maximum number of PSFCHs allowed to be sent on the Rth bandwidth.
  • the first terminal may make adjustments for different bandwidths respectively.
  • the first terminal discards the PSFCH with the lowest priority from the PSFCH to be sent corresponding to the Rth bandwidth in order according to the priority level of the PSFCH to be sent. Until the number of PSFCHs corresponding to the Rth bandwidth is less than or equal to the maximum number of PSFCHs corresponding to the Rth bandwidth. Among them, the number of PSFCHs of the Rth bandwidth after PSFCH adjustment can be called y4. That is, y4 PSFCHs to be sent corresponding to the Rth bandwidth.
  • the first terminal discards the PSFCH with the lowest priority from the PSFCH corresponding to the Rth bandwidth according to the priority level of the PSFCH. Then the first terminal determines again based on the remaining PSFCH whether the number of PSFCHs corresponding to the Rth bandwidth is less than or equal to the maximum number of PSFCHs corresponding to the Rth bandwidth. If the number of PSFCHs corresponding to the Rth bandwidth is still greater than the maximum number of PSFCHs corresponding to the Rth bandwidth, the PSFCH with the lowest priority among the remaining PSFCHs will continue to be discarded. Until the number of PSFCHs corresponding to the Rth bandwidth is less than or equal to the maximum number of PSFCHs corresponding to the Rth bandwidth.
  • the sum of y4 corresponding to each bandwidth should be equal to y1.
  • y1 when the number of PSFCHs that the terminal needs to send is less than or equal to N MAX,PSFCH , y1 may be equal to the number of PSFCHs corresponding to multiple carriers that the terminal needs to send.
  • y1 when the number of PSFCHs that the terminal needs to send is greater than N MAX,PSFCH , y1 may be equal to N MAX,PSFCH .
  • different frequency bands may have their own corresponding N MAX,PSFCH , which may be expressed as N MAX,PSFCH,f .
  • N MAX,PSFCH,f may be expressed as N MAX,PSFCH corresponding to frequency band f.
  • the number of PSFCHs that the first terminal needs to send is y1. In this case, since y1 is less than or equal to the first threshold, the first terminal may not adjust the PSFCH.
  • the PSFCHs corresponding to the multiple carriers sent by the first terminal have y1 PSFCHs to be sent.
  • y1 PSFCHs to be sent may be considered as the number of PSFCHs that the terminal needs to send to meet N MAX,PSFCH .
  • whether to adjust the power of y1 PSFCHs to be sent or discard the PSFCHs may be determined based on the total transmission power of the y1 PSFCHs to be sent.
  • the first terminal may perform power adjustment or PSFCH discard on y1 PSFCHs to be transmitted to obtain y2 PSFCHs.
  • the total transmission power of y2 PSFCHs may be referred to as the first power.
  • the first power is less than or equal to the first maximum transmission power.
  • y2 is less than or equal to y1.
  • the first maximum transmit power can be considered as the maximum transmit power pre-configured by the terminal.
  • the terminal can determine the first maximum transmit power according to its own configuration.
  • the first maximum transmit power may be denoted as PCMAX .
  • the first terminal needs to adjust the power of y1 PSFCHs to be transmitted or discard the PSFCHs to obtain y2 PSFCHs, so that the total transmission power of y2 PSFCHs is less than or equal to PCMAX , thereby meeting the transmission requirement.
  • PCMAX can be the first maximum transmission power determined according to actual requirements, and when the terminal transmission power exceeds PCMAX , it can be considered that the transmission requirement is not met.
  • PCMAX can be determined by the terminal based on its own configuration, and a suitable value can be selected according to actual conditions, which is not limited in the present disclosure.
  • y2 is less than or equal to y1, and the first terminal may reduce the power and/or discard the y1 PSFCHs to be transmitted. In this case, only part of the PSFCHs may be reduced in power and/or discarded.
  • the first terminal may reduce the power of the PSFCH with the lowest priority among the y1 PSFCHs to be sent based on the priorities of the PSFCHs to be sent.
  • the first terminal determines the total transmission power corresponding to the y1 PSFCHs to be sent after the power reduction. Whether the rate is greater than the first maximum transmit power.
  • y2 is still equal to y1.
  • the first terminal only reduces the power of the PSFCH with the lowest priority.
  • the first terminal may discard the PSFCH for which power reduction is performed, that is, discard the PSFCH with the lowest priority among the y1 PSFCHs to be sent.
  • the first terminal again determines whether the total transmit power corresponding to the remaining PSFCHs after discarding the PSFCHs is greater than the first maximum transmit power.
  • y2 is less than y1.
  • the first terminal discards the PSFCH with the lowest priority to ensure that the total transmit power of y2 PSFCHs is less than or equal to PCMAX .
  • the first terminal can repeat the above process, that is, reduce the power or discard the PSFCH with the lowest priority from the remaining PSFCHs, until the total transmission power corresponding to the remaining PSFCH is less than or equal to the first maximum transmission power, and y2 PSFCHs are obtained.
  • the transmission power on the carrier can be guaranteed to be the following formula.
  • P PSFCH,one,c P 0,PSFCH,c +10log 10 (2 ⁇ )+ ⁇ PSFCH,c ⁇ PL ...Formula 2
  • c represents a carrier index.
  • P PSFCH,one,c represents the transmit power value of the PSFCH obtained after power control on each carrier.
  • the first terminal may determine which PSFCH to reduce power and/or discard based on the terminal implementation of the first terminal itself.
  • the first terminal determines to reduce the power of the PSFCH with the lowest priority among y1 PSFCHs to be sent, but at this time there are multiple PSFCHs with the same priority, all of which are the lowest.
  • the first terminal can decide to reduce the power of a certain PSFCH among the multiple PSFCHs with the lowest priority according to its own terminal implementation.
  • the PSFCH can also be discarded.
  • the first terminal determines to reduce the power of the PSFCH with the lowest priority among the remaining PSFCHs to be sent after the PSFCH is discarded, but at this time there are multiple PSFCHs with the same priority, all of which are the lowest.
  • the first terminal can decide to reduce the power of a PSFCH among the multiple PSFCHs with the lowest priority according to its own terminal implementation.
  • the PSFCH can also be discarded.
  • the specific terminal implementation may be a preset rule pre-stored in the terminal, or determined by the terminal based on its own power, hardware conditions, and software conditions.
  • the present disclosure does not limit the specific implementation of the terminal.
  • the first terminal does not perform power reduction and/or discard for the PSFCH corresponding to the primary carrier or the default carrier.
  • the terminal determines to reduce the power of the PSFCH with the lowest priority among y1 PSFCHs to be sent, but the PSFCH with the lowest priority is a PSFCH sent on the primary carrier or the default carrier, the first terminal does not reduce the power and/or discard the PSFCH.
  • the primary carrier or the default carrier may be pre-configured, and which carriers are the primary carriers and which carriers are the default carriers may be defined according to actual conditions, which is not specifically limited in the present disclosure.
  • y2 is equal to y1, and the first terminal may reduce the power of all PSFCHs among the y1 PSFCHs to be transmitted. In this case, the number of PSFCHs will not be changed, but the power of all PSFCHs will be reduced.
  • a separate power adjustment may be performed for each carrier, which is mainly due to the different power control parameters configured by the resource pool network equipment or pre-configured by the terminal on different carriers.
  • the total transmission power of the PSFCH corresponding to the xth carrier can be determined according to the number of PSFCHs corresponding to the xth carrier and the PSFCH transmission power corresponding to the xth carrier.
  • x is a positive integer.
  • the PSFCH transmission power corresponding to the xth carrier represents the transmission power of a single PSFCH on the xth carrier.
  • P PSFCH,one,c corresponding to each PSFCH in each carrier may be determined with reference to Formula 2.
  • the total transmit power of the PSFCH corresponding to the x-th carrier may be determined with reference to Formula 3.
  • the terminal when the terminal performs power reduction on all PSFCHs in the y1 PSFCHs to be transmitted, before performing power reduction, the terminal may determine whether the power reduction meets the requirements according to the terminal's own implementation. NTX ,PSFCH .
  • Mi ,c represents the number of PSFCHs of corresponding priority for each carrier that makes the total power less than or equal to PCMAX .
  • the PSFCH transmit power corresponding to the x-th carrier is determined based on the first PSFCH transmit power and the second PSFCH transmit power.
  • the first PSFCH transmit power indicates that the terminal determines the transmit power of a single PSFCH on the x-th carrier; the second PSFCH transmit power indicates the configured transmit power of a single PSFCH on the x-th carrier.
  • the first PSFCH transmit power is determined based on the second PSFCH transmit power, the total transmit power of the PSFCH corresponding to the x-th carrier, and the first maximum transmit power.
  • the second PSFCH transmit power is configured by the network device or the terminal.
  • the first PSFCH transmission power is the transmission power of a single PSFCH actually transmitted by the first terminal.
  • the PSFCH transmission power corresponding to the x-th carrier can be recorded as P PSFCH,K (i), which represents the transmission power corresponding to each PSFCH with a priority value within K on the x-th carrier.
  • P PSFCH,K (i) can be determined according to Formula 4.
  • P PSFCH, K (i) min (P new , P PSFCH, one, c ) ...Formula 4
  • P new is the first PSFCH transmission power mentioned above
  • P PSFCH,one,c is the second PSFCH transmission power mentioned above.
  • P new can be determined by Formula 5.
  • the total transmission power corresponding to all PSFCHs with the highest priority is also greater than PCMAX , and multiple PSFCHs cannot be sent simultaneously. Therefore, for this carrier, it is only necessary to satisfy P PSFCH,one,c ⁇ PCMAX . That is, when a PSFCH is sent alone, it is ensured that the transmission power of the PSFCH is less than or equal to PCMAX .
  • the first PSFCH transmit power represents the transmit power of the PSFCH corresponding to the x-th carrier determined by the terminal.
  • Pnew is usually less than PPSFCH,one,c ; when the total transmit power of the PSFCH corresponding to the x-th carrier is less than PCMAX , Pnew is usually greater than PPSFCH,one,c .
  • the PSFCH to be sent corresponding to the Rth bandwidth is power adjusted or the PSFCH is discarded.
  • the sum of the second maximum transmission power corresponding to each bandwidth is equal to the first maximum transmission power.
  • the second maximum transmission power can be considered as the maximum transmission power corresponding to the Rth bandwidth. That is, it represents the maximum value of the transmission power allowed by the first terminal on the Rth bandwidth.
  • the first terminal can adjust the power of the PSFCH to be transmitted corresponding to the bandwidth or discard the PSFCH. For example, reduce the power or discard part of the PSFCH in the Rth bandwidth.
  • the second maximum transmit power may be configured based on higher layer signaling.
  • the second maximum transmit power may be based on the total transmit power of the PSFCH to be transmitted corresponding to the entire bandwidth, the first The R bandwidths are determined corresponding to the total transmit power and the maximum transmit power of the PSFCH to be transmitted.
  • the total bandwidth corresponds to the total transmission power of the PSFCH to be sent, indicating the total transmission power required for all PSFCHs that the first terminal needs to send.
  • the Rth bandwidth corresponds to the total transmission power of the PSFCH to be sent, indicating the total transmission power required by the first terminal for all PSFCHs that need to be sent on the Rth bandwidth.
  • the second maximum transmit power can be determined by Formula 6.
  • f different frequency bands
  • P PSFCH,one,f,c represents the power control parameters of the corresponding carriers on different frequency bands.
  • N sch,TX,PSFCH,f,c represents the number of PSFCHs sent on each carrier of different frequency bands.
  • f min represents the minimum value of the carrier index on the frequency band
  • the total transmit power of the PSFCH corresponding to the Wth frequency band is determined based on the total transmit power of the PSFCH corresponding to each carrier in the Wth frequency band, where W is a positive integer.
  • the first terminal may also discard all PSFCHs to be sent on a specific carrier, where the specific carrier may be a carrier that satisfies the first condition in the Wth frequency band.
  • the first condition includes a simultaneous transmission of multiple carrier restrictions.
  • the simultaneous transmission of multiple carriers is limited to a maximum of 6 carriers, but the first terminal needs to simultaneously transmit 8 carriers, which is more than the requirement of the simultaneous transmission of multiple carriers, the first terminal needs to discard the PSFCH corresponding to the specific carrier.
  • the terminal may select carriers as specific carriers based on the priority of sending PSFCH on the carriers, and discard the PSFCH corresponding to the specific carriers.
  • the carrier when there is one carrier with the lowest PSFCH priority, the carrier can be used as a specific carrier and the PSFCH corresponding to the specific carrier is discarded. After that, it is determined based on the remaining carriers whether it is less than or equal to the requirement of simultaneously sending 6 carriers.
  • the multiple carriers can be used as specific carriers, and the PSFCHs corresponding to the multiple specific carriers are discarded. After that, it is determined whether the number of carriers is less than or equal to the requirement of simultaneously sending 6 carriers based on the remaining carriers.
  • the terminal can decide which carriers corresponding to the PSFCHs are used as specific carriers according to its own implementation, and discard the PSFCHs corresponding to the specific carriers. After that, it continues to determine whether it is less than or equal to the requirement of sending 6 carriers simultaneously based on the remaining carriers.
  • the first terminal when the remaining carriers are still greater than the requirement for simultaneously transmitting 6 carriers, the first terminal continues to determine the specific carriers using one or more of the above methods based on the remaining carriers, and discards the PSFCH corresponding to the specific carrier, until the remaining carriers are less than or equal to the requirement for simultaneously transmitting 6 carriers.
  • the first terminal may discard all PSFCHs corresponding to the carrier with the lowest priority of the PSFCH to be sent from the Wth frequency band in sequence according to the priority of the PSFCH to be sent in the carrier, until the number of carriers in the Wth frequency band is less than or equal to the number of carriers restricted from sending multiple carriers simultaneously.
  • the first terminal may determine the PSFCH with the lowest priority among all PSFCHs to be sent on all carriers, and discard all PSFCHs in the carrier corresponding to the PSFCH.
  • the first terminal determines whether it is less than or equal to the number of carriers restricted to simultaneously sending multiple carriers based on the remaining carriers.
  • the first terminal determines the carrier corresponding to the PSFCH with the lowest priority among the remaining carriers based on the remaining carriers, and discards all PSFCHs in the carrier. Until the remaining carriers are less than or equal to the number of carriers restricted to simultaneously sending multiple carriers.
  • the first condition includes a carrier combination requirement.
  • the carrier combination requirement may be that continuous carriers must be sent. Therefore, assuming that the carriers that the first terminal needs to send are carrier 0, carrier 2, and carrier 3, the first terminal needs to discard the PSFCH corresponding to carrier 0. Until the number of carriers in the Wth frequency band meets the limit of the carrier combination requirement.
  • the carrier combination requirement may directly limit the partial carrier combination allowed to be sent. Then the terminal needs to discard all PSFCHs corresponding to other carriers outside the carrier combination requirement in the Wth frequency band, until the number of carriers in the Wth frequency band meets the limitation of the carrier combination requirement.
  • the first condition includes a radio frequency retuning time limit.
  • the RF retuning time limit may be the time limit required for switching carriers.
  • slot1 and slot2 For two adjacent slots, such as slot1 and slot2, slot1 sends the PSFCH corresponding to carrier 0 and the PSFCH corresponding to carrier 1, and slot2 sends the PSFCH corresponding to carrier 0 and the PSFCH corresponding to carrier 2.
  • carrier 0 For carrier 0, it needs to be sent in both slot1 and slot2, and does not involve carrier switching. Therefore, the PSFCH corresponding to carrier 0 can be sent on slot2.
  • carrier 2 since the PSFCH corresponding to carrier 1 is sent on slot1, carrier switching is required for slot2. In other words, carrier 1 needs to be switched to carrier 2.
  • carrier switching requires two slots.
  • the process of switching from carrier 1 to carrier 2 cannot be completed in slot2. Therefore, for the first terminal in slot2, it can only choose to discard the PSFCH corresponding to carrier 2. Then the first terminal in slot2 can only send the PSFCH corresponding to carrier 0, but cannot send the PSFCH corresponding to carrier 2.
  • Step S2102 The first terminal sends PSFCHs corresponding to multiple carriers to the second terminal using a first power.
  • the first terminal sends the PSFCH corresponding to multiple carriers to the second terminal using the first power.
  • the second terminal receives a PSFCH corresponding to multiple carriers transmitted using a first power.
  • the first terminal sends a PSFCH corresponding to a different bandwidth to the second terminal using the second power.
  • the second terminal receives a PSFCH corresponding to a different bandwidth transmitted using a second power.
  • the sum of the PSFCHs corresponding to the multiple bandwidths is the same as the PSFCHs corresponding to the multiple carriers transmitted and/or received using the first power.
  • the sum of the second powers corresponding to the multiple bandwidths is equal to the first power.
  • side link means “side link”, “side”, “sidelink”, “sideline communication”, “sidelink communication”, “direct connection”, “direct link”, “direct communication”, “direct link communication” and other terms can be used interchangeably.
  • the side link communication method involved in the embodiment of the present disclosure may include at least one of step S2101 to step S2102.
  • step S2102 may be implemented as an independent embodiment, but is not limited thereto.
  • step S2101 is optional, and one or more of these steps may be omitted or replaced in different embodiments.
  • FIG3a is a flow chart of a side link communication method according to an exemplary embodiment. As shown in FIG3a, the embodiment of the present disclosure relates to a side link communication method, which can be executed on a first terminal, and the method includes:
  • Step S3101 determine the PSFCH to be sent, and adjust the PSFCH to be sent.
  • step S3101 can refer to the optional implementation of step S2101 in FIG. 2 and other related parts in the embodiment involved in FIG. 2 , which will not be described in detail here.
  • Step S3102 Send PSFCHs corresponding to multiple carriers using a first power.
  • step S3102 can refer to the optional implementation of step S2102 in FIG. 2 and other related parts in the embodiment involved in FIG. 2 , which will not be described in detail here.
  • FIG3b is a flow chart of another side link communication method according to an exemplary embodiment.
  • the embodiment of the present disclosure relates to a side link communication method, which can be executed on a first terminal, and the method includes:
  • Step S3201 Send PSFCHs corresponding to multiple carriers using a first power.
  • step S3201 can refer to the optional implementation of step S2102 in Figure 2, the optional implementation of step S3102 in Figure 3a, and other related parts in the embodiment involved in Figure 2 and other related parts in the embodiment involved in Figure 3a, which will not be repeated here.
  • the PSFCHs corresponding to multiple carriers have y1 PSFCHs to be sent; the method also includes: if the total transmission power of the y1 PSFCHs to be sent is greater than a preset first maximum transmission power, power adjustment is performed on the y1 PSFCHs to be sent or the PSFCHs are discarded to obtain y2 PSFCHs, wherein the total transmission power of the y2 PSFCHs is the first power, and y2 is less than or equal to y1.
  • the method also includes: determining y3 PSFCHs to be sent, where y3 is greater than a first threshold; based on the priority corresponding to the PSFCH, discarding the PSFCH with the lowest priority from the y3 PSFCHs to be sent in turn, to obtain y1 PSFCHs to be sent, where y1 is less than or equal to the first threshold.
  • At least one bandwidth corresponding to sending PSFCH corresponds to a second threshold respectively, and the sum of the second thresholds corresponding to each bandwidth is equal to the first threshold, wherein the bandwidth includes at least one of a frequency band and a carrier, and each frequency band includes at least one carrier.
  • the second threshold is the maximum number of PSFCHs corresponding to the Rth bandwidth, where R is a positive integer; based on the priority corresponding to the PSFCH, the PSFCH with the lowest priority is discarded in turn from the y3 PSFCHs to be sent, to obtain y1 PSFCHs to be sent, including: according to the priority corresponding to the PSFCH, the PSFCH with the lowest priority is discarded in turn from the PSFCHs to be sent corresponding to the Rth bandwidth, until the number of PSFCHs corresponding to the Rth bandwidth is less than or equal to the maximum number of PSFCHs corresponding to the Rth bandwidth, to obtain y4 PSFCHs to be sent corresponding to the Rth bandwidth; wherein, among all the bandwidths occupied by sending PSFCH, the sum of y4 corresponding to each bandwidth is equal to y1.
  • the first threshold is determined based on terminal capabilities of the terminal itself.
  • power adjustment or PSFCH discarding is performed on y1 PSFCHs to be sent, including: if the total transmission power of the PSFCHs to be sent corresponding to the R-th bandwidth is greater than the second maximum transmission power corresponding to the R-th bandwidth, power adjustment or PSFCH discarding is performed on the PSFCH to be sent corresponding to the R-th bandwidth; wherein, in all bandwidths occupied by sending PSFCH, the sum of the second maximum transmission powers corresponding to each bandwidth is equal to the first maximum transmission power; the second maximum transmission power is based on high-level signaling configuration, or the second maximum transmission power is determined based on the total transmission power of the PSFCHs to be sent corresponding to all bandwidths, the total transmission power of the PSFCHs to be sent corresponding to the R-th bandwidth and the first maximum transmission power, and R is a positive integer.
  • the bandwidth includes a frequency band
  • the total transmit power of the PSFCH corresponding to the Wth frequency band is determined based on the total transmit power of the PSFCH corresponding to each carrier in the Wth frequency band, where W is a positive integer.
  • the method also includes: discarding all PSFCHs to be sent on a specific carrier, wherein the specific carrier is a carrier in the Wth frequency band that satisfies a first condition, and W is a positive integer; the first condition includes at least one of the following: restrictions on sending multiple carriers simultaneously; carrier combination requirements; and radio frequency retuning time restrictions.
  • the first condition includes a restriction on sending multiple carriers simultaneously; discarding all PSFCHs to be sent on a specific carrier includes: according to the priority of the PSFCHs to be sent in the carrier, discarding the PSFCHs corresponding to the carriers with the lowest priority of the PSFCHs to be sent from the Wth frequency band in sequence; until the number of carriers in the Wth frequency band is less than or equal to the number of carriers restricted from sending multiple carriers simultaneously.
  • the PSFCH corresponding to the primary carrier or the default carrier is not power reduced and/or dropped.
  • y2 is equal to y1; the total transmission power of the PSFCH corresponding to the x-th carrier is determined by the number of PSFCHs corresponding to the x-th carrier and the PSFCH transmission power corresponding to the x-th carrier, where x is a positive integer, and the PSFCH transmission power corresponding to the x-th carrier represents the transmission power of a single PSFCH on the x-th carrier. It can be understood that the x-th carrier is one of the multiple carriers transmitted by the terminal.
  • the PSFCH transmit power corresponding to the x-th carrier is determined based on the first PSFCH transmit power and the second PSFCH transmit power; wherein, the first PSFCH transmit power indicates the transmit power of a single PSFCH on the x-th carrier determined by the terminal, the second PSFCH transmit power indicates the configured transmit power of a single PSFCH on the x-th carrier, the first PSFCH transmit power is determined based on the second PSFCH transmit power, the total transmit power of the PSFCH corresponding to the x-th carrier and the first maximum transmit power, and the second PSFCH transmit power is configured by the network device or pre-configured by the terminal.
  • FIG4 is a flow chart of another side link communication method according to an exemplary embodiment. As shown in FIG4, the embodiment of the present disclosure relates to a side link communication method, which can be executed on a second terminal, and the method includes:
  • Step S4101 obtaining PSFCHs corresponding to multiple carriers transmitted with a first power.
  • step S4101 can refer to the optional implementation of step S2102 in FIG. 2 and other related parts in the embodiment involved in FIG. 2 , which will not be described in detail here.
  • the PSFCH corresponding to multiple carriers has y1 PSFCHs to be sent; the received PSFCHs corresponding to multiple carriers are determined in the following manner: if the total transmission power of y1 PSFCHs to be sent is greater than a preset first maximum transmission power, power adjustment is performed on the y1 PSFCHs to be sent or the PSFCHs are discarded to obtain y2 PSFCHs, wherein the total transmission power of y2 PSFCHs is the first power, and y2 is less than or equal to y1.
  • the PSFCHs corresponding to the received multiple carriers are determined in the following manner: y3 PSFCHs to be sent are determined, where y3 is greater than a first threshold; based on the priority corresponding to the PSFCHs, the PSFCHs with the lowest priority are discarded in turn from the y3 PSFCHs to be sent, to obtain y1 PSFCHs to be sent, where y1 is less than or equal to the first threshold.
  • At least one bandwidth corresponding to the transmission of the PSFCH corresponds to a second threshold value, and the first threshold value corresponding to each bandwidth The sum of the two thresholds is equal to the first threshold, wherein the bandwidth includes at least one of a frequency band and a carrier, and each frequency band includes at least one carrier.
  • the second threshold is the maximum number of PSFCHs corresponding to the Rth bandwidth, where R is a positive integer; based on the priority corresponding to the PSFCH, the PSFCH with the lowest priority is discarded in turn from the y3 PSFCHs to be sent, to obtain y1 PSFCHs to be sent, including: according to the priority corresponding to the PSFCH, the PSFCH with the lowest priority is discarded in turn from the PSFCHs to be sent corresponding to the Rth bandwidth, until the number of PSFCHs corresponding to the Rth bandwidth is less than or equal to the maximum number of PSFCHs corresponding to the Rth bandwidth, to obtain y4 PSFCHs to be sent corresponding to the Rth bandwidth; wherein, among all the bandwidths occupied by sending PSFCH, the sum of y4 corresponding to each bandwidth is equal to y1.
  • the first threshold is determined based on terminal capabilities of the terminal itself.
  • power adjustment or PSFCH discarding is performed on y1 PSFCHs to be sent, including: if the total transmission power of the PSFCHs to be sent corresponding to the R-th bandwidth is greater than the second maximum transmission power corresponding to the R-th bandwidth, power adjustment or PSFCH discarding is performed on the PSFCH to be sent corresponding to the R-th bandwidth; wherein, in all bandwidths occupied by sending PSFCH, the sum of the second maximum transmission powers corresponding to each bandwidth is equal to the first maximum transmission power; the second maximum transmission power is based on high-level signaling configuration, or the second maximum transmission power is determined based on the total transmission power of the PSFCHs to be sent corresponding to all bandwidths, the total transmission power of the PSFCHs to be sent corresponding to the R-th bandwidth and the first maximum transmission power, and R is a positive integer.
  • the bandwidth includes a frequency band
  • the total transmit power of the PSFCH corresponding to the Wth frequency band is determined based on the total transmit power of the PSFCH corresponding to each carrier in the Wth frequency band, where W is a positive integer.
  • the PSFCHs corresponding to the received multiple carriers are determined by discarding all PSFCHs to be sent on a specific carrier, where the specific carrier is a carrier in the Wth frequency band that satisfies the first condition, and W is a positive integer; the first condition includes at least one of the following: restrictions on simultaneous transmission of multiple carriers; carrier combination requirements; and RF retuning time limits.
  • the first condition includes a restriction on sending multiple carriers simultaneously; discarding all PSFCHs to be sent on a specific carrier includes: according to the priority of the PSFCHs to be sent in the carrier, discarding the PSFCHs corresponding to the carriers with the lowest priority of the PSFCHs to be sent from the Wth frequency band in sequence; until the number of carriers in the Wth frequency band is less than or equal to the number of carriers restricted from sending multiple carriers simultaneously.
  • the PSFCH corresponding to the primary carrier or the default carrier is not power reduced and/or dropped.
  • y2 is equal to y1; the total transmission power of the PSFCH corresponding to the x-th carrier is determined by the number of PSFCHs corresponding to the x-th carrier and the PSFCH transmission power corresponding to the x-th carrier, where x is a positive integer, and the PSFCH transmission power corresponding to the x-th carrier represents the transmission power of a single PSFCH on the x-th carrier. It can be understood that the x-th carrier is one of the multiple carriers transmitted by the terminal.
  • the PSFCH transmit power corresponding to the x-th carrier is determined based on the first PSFCH transmit power and the second PSFCH transmit power; wherein, the first PSFCH transmit power indicates the transmit power of a single PSFCH on the x-th carrier determined by the terminal, the second PSFCH transmit power indicates the configured transmit power of a single PSFCH on the x-th carrier, the first PSFCH transmit power is determined based on the second PSFCH transmit power, the total transmit power of the PSFCH corresponding to the x-th carrier and the first maximum transmit power, and the second PSFCH transmit power is configured by the network device or pre-configured by the terminal.
  • FIG5 is a flow chart of another side link communication method according to an exemplary embodiment. As shown in FIG5, the embodiment of the present disclosure relates to a side link communication method, and the method includes:
  • Step S5101 A first terminal sends PSFCHs corresponding to multiple carriers to a second terminal using a first power.
  • the optional implementation method of step S5101 can refer to the optional implementation method of step S2102 in Figure 2, the optional implementation method of step S3102 in Figure 3a, the optional implementation method of step S3201 in Figure 3b, the optional implementation method of step S4101 in Figure 4, and other related parts in the embodiment involved in Figure 2, other related parts in the embodiment involved in Figure 3a, other related parts in the embodiment involved in Figure 3b, and other related parts in the embodiment involved in Figure 4, which will not be repeated here.
  • the LTE SL CA mechanism can be reused without scaling the transmit power of all PSFCHs.
  • the power on one carrier is guaranteed to be as shown in Formula 2.
  • N MAX,PSFCH the priority values are ranked from large to small (priority The larger the value, the lower the priority), and the corresponding number of PSFCHs are discarded, where N MAX,PSFCH is the maximum number of PSFCHs supported in each frequency band determined by the terminal based on its own capabilities.
  • each frequency band/carrier is prioritized from high to low in terms of priority value, the PSFCH transmission on the corresponding frequency band/carrier is discarded, and then subsequent steps are performed.
  • the transmission of the PSFCH corresponding to the maximum priority value will be power-reduced (the difference here from LTE is that only one PSCCH and PSSCH of LTE can be sent on one carrier, but multiple PSFCHs can be sent on one carrier), or discarded, and the process is repeated until the total power of the transmission does not exceed PCMAX ;
  • the current mechanism ensures that no dropping or power reduction of the PSFCH is performed on the primary carrier or the default carrier.
  • NR SL PSFCH intra-band CA case, each carrier is power controlled, N MAX, PSFCH is configured for each frequency band
  • the transmit power of all PSFCHs may be scaled. At this time, it is necessary to consider that the power control parameters in the resource pools on different carriers are different. In this case, the transmit power of each PSFCH must consider the parameters of each carrier, such as reference formula 2 and/or formula 3.
  • the UE may select a method to satisfy the above-mentioned mechanism based on the implementation.
  • Mi ,c represents the sum of the number of PSFCHs of the corresponding priority for each carrier so that the total power is less than or equal to PCMAX .
  • K is the maximum value of the priority value.
  • an inter-band CA SL PSFCH power control mechanism is provided (where N MAX,PSFCH is configured or defined per frequency band).
  • the PSFCH in each frequency band is first discarded so that the number of PSFCHs sent in each frequency band is less than or equal to N MAX,PSFCH,f , where f represents the corresponding frequency band, and the parameter represents the maximum number of PSFCHs that can be sent by the UE in each frequency band. Then the above process is followed, and the sum of the number of PSFCHs to be sent is the sum of the discarded PSFCHs based on the maximum number of PSFCHs that can be sent in each frequency band.
  • the terminal needs to drop all PSFCH transmissions on certain carriers.
  • the total power is allocated to each frequency band by configuring PCMAX,f for each frequency band through high-level configuration, or PCMAX,f is set to: the total power of the number of PSFCHs to be sent on the frequency band/the total power of the number of PSFCHs to be sent on all frequency bands* PCMAX ; then if there is only one carrier for a frequency band, the PSFCH power and the number of transmissions can be determined by referring to the R16 mechanism for the frequency band, except that PCMAX,f is used instead of PCMAX in the prior art; if there are multiple carriers, the previous page process is executed, and the total power PCMAX,f on each frequency band can refer to formula 6 as follows.
  • the UE may need to discard all PSFCH transmissions on certain carriers before executing the above steps.
  • the reason for discarding is due to the limitation of sending multiple at the same time, the limitation of the supported carrier combination or the limitation of the RF re-tuning time.
  • the carrier to be discarded starts with the carrier with the lowest priority (the largest priority value) among all PSFCH transmissions on the carrier. Continue in sequence until the above requirements of the terminal are met. The terminal can discard the remaining The PSFCH transmission on the remaining carriers executes the above power control allocation process.
  • each step can be implemented as an independent embodiment. Some or all of the steps and their optional implementations can be arbitrarily combined with some or all of the steps in other embodiments, and can also be arbitrarily combined with the optional implementations of other embodiments.
  • the embodiments of the present disclosure also provide a device for implementing any of the above methods, for example, a side link communication device is provided, the device includes a unit or module for implementing each step performed by the first terminal in any of the above methods.
  • a side link communication device is provided, including a unit or module for implementing each step performed by the second terminal in any of the above methods.
  • the division of the units or modules in the above device is only a division of logical functions, which can be fully or partially integrated into one physical entity or physically separated in actual implementation.
  • the units or modules in the device can be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and instructions are stored in the memory.
  • the processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory inside the device or a memory outside the device.
  • CPU central processing unit
  • microprocessor a microprocessor
  • the units or modules in the device may be implemented in the form of hardware circuits, and the functions of some or all of the units or modules may be implemented by designing the hardware circuits.
  • the hardware circuits may be understood as one or more processors; for example, in one implementation, the hardware circuits are application-specific integrated circuits (ASICs), and the functions of some or all of the above units or modules may be implemented by designing the logical relationship of the components in the circuits; for another example, in another implementation, the hardware circuits may be implemented by programmable logic devices (PLDs), and Field Programmable Gate Arrays (FPGAs) may be used as an example, which may include a large number of logic gate circuits, and the connection relationship between the logic gate circuits may be configured by configuring the configuration files, thereby implementing the functions of some or all of the above units or modules. All units or modules of the above devices may be implemented in the form of software called by the processor, or in the form of hardware circuits, or in the form of software called by the processor, and the remaining part may be implemented in
  • the processor is a circuit with signal processing capability.
  • the processor may be a circuit with instruction reading and running capability, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which may be understood as a microprocessor), or a digital signal processor (DSP); in another implementation, the processor may implement certain functions through the logical relationship of a hardware circuit, and the logical relationship of the above hardware circuit may be fixed or reconfigurable, such as a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA.
  • ASIC application-specific integrated circuit
  • PLD programmable logic device
  • the process of the processor loading a configuration document to implement the hardware circuit configuration may be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules.
  • it can also be a hardware circuit designed for artificial intelligence, which can be understood as ASIC, such as Neural Network Processing Unit (NPU), Tensor Processing Unit (TPU), Deep Learning Processing Unit (DPU), etc.
  • ASIC Neural Network Processing Unit
  • NPU Neural Network Processing Unit
  • TPU Tensor Processing Unit
  • DPU Deep Learning Processing Unit
  • FIG6a is a schematic diagram of a side link communication device according to an exemplary embodiment.
  • the side link communication device 6100 may be, for example, the first terminal mentioned above, and the device 6100 includes: a transceiver module 6101.
  • the device 6100 may also include any possible modules such as a processing module 6102, which is not limited in the present disclosure.
  • the transceiver module 6101 is used to send PSFCHs corresponding to multiple carriers using a first power.
  • the transceiver module 6101 is used to perform the communication steps S2102 such as sending and/or receiving performed by the first terminal in any of the above methods, but is not limited to this and will not be repeated here.
  • the processing module 6102 is used to perform other steps S2101 performed by the first terminal in any of the above methods, but is not limited to this and will not be repeated here.
  • FIG6b is a schematic diagram of another side link communication device according to an exemplary embodiment.
  • the side link communication device 6200 may be, for example, the second terminal mentioned above, and the device 6200 includes: a transceiver module 6201.
  • the device 6200 may also include any possible modules such as a processing module, which is not limited in the present disclosure.
  • the transceiver module 6201 is used to obtain the PSFCH corresponding to multiple carriers transmitted using a first power.
  • the transceiver module 6201 is used to perform the communication steps S2102 such as sending and/or receiving performed by the second terminal in any of the above methods, but is not limited to this and will not be repeated here.
  • FIG7a is a schematic diagram of the structure of a communication device 7100 proposed in 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.), or a terminal (e.g., a user device, etc.), or a chip, a chip system, or a processor that supports a network device to implement any of the above methods, or a chip, a chip system, or a processor that supports a terminal to implement any of the above methods.
  • the communication device 7100 may be used to implement the method described in the above method embodiment, and the details may refer to the description in the above method embodiment.
  • the communication device 7100 includes one or more processors 7101.
  • the processor 7101 may be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit.
  • the baseband processor may be used to process the communication protocol and the communication data
  • the central processing unit may be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute a program, and process the data of the program.
  • the communication device 7100 is used to execute any of the above methods.
  • the communication device 7100 also includes one or more memories 7102 for storing instructions. Or part of the memory 7102 may also be located outside the communication device 7100.
  • the communication device 7100 further includes one or more transceivers 7103.
  • the transceiver 7103 performs the communication steps S2102 such as sending and/or receiving in the above method, but is not limited thereto.
  • the processor 7101 performs other steps S2101, but is not limited thereto.
  • the transceiver may include a receiver and/or a transmitter, and the receiver and the transmitter may be separate or integrated.
  • the terms such as transceiver, transceiver unit, transceiver, transceiver circuit, etc. may be replaced with each other, the terms such as transmitter, transmission unit, transmitter, transmission circuit, etc. may be replaced with each other, and the terms such as receiver, receiving unit, receiver, receiving circuit, etc. may be replaced with each other.
  • the communication device 7100 may include one or more interface circuits 7104.
  • the interface circuit 7104 is connected to the memory 7102, and the interface circuit 7104 may be used to receive signals from the memory 7102 or other devices, and may be used to send signals to the memory 7102 or other devices.
  • the interface circuit 7104 may read instructions stored in the memory 7102 and send the instructions to the processor 7101.
  • the communication device 7100 described in the above embodiments 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. 7a.
  • the communication device may be an independent device or may be part of a larger device.
  • the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, a vehicle-mounted device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.
  • Fig. 7b is a schematic diagram of the structure of a chip 7200 provided in an embodiment of the present disclosure.
  • the communication device 7100 may be a chip or a chip system
  • the chip 7200 includes one or more processors 7201, and the chip 7200 is used to execute any of the above methods.
  • the chip 7200 further includes one or more interface circuits 7202.
  • the interface circuit 7202 is connected to the memory 7203.
  • the interface circuit 7202 can be used to receive signals from the memory 7203 or other devices, and the interface circuit 7202 can be used to send signals to the memory 7203 or other devices.
  • the interface circuit 7202 can read instructions stored in the memory 7203 and send the instructions to the processor 7201.
  • the interface circuit 7202 performs the communication step S2102 of sending and/or receiving in the above method, but is not limited thereto.
  • the processor 7201 performs other steps S2101, but is not limited thereto.
  • interface circuit interface circuit
  • transceiver pin transceiver
  • the chip 7200 further includes one or more memories 7203 for storing instructions.
  • the memory 7203 may be outside the chip 7200.
  • the present disclosure also proposes a storage medium, on which instructions are stored, and when the instructions are executed on the communication device 7100, the communication device 7100 executes any of the above methods.
  • the storage medium is an electronic storage medium.
  • the storage medium is a computer-readable storage medium, but is not limited to this, and it can also be a storage medium readable by other devices.
  • the storage medium can be a non-transitory storage medium, but is not limited to this, and it can also be a temporary storage medium.
  • the present disclosure also proposes a program product, which, when executed by the communication device 7100, enables the communication device 7100 to execute any of the above methods.
  • the program product is a computer program product.
  • the present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to execute any one of the above methods.
  • This paper designs a PSFCH power control method in multi-carrier scenario and provides two methods based on LTE SL CA and NR SL PSFCH power control mechanism. It realizes the power control of PSFCH in CA scenario and determines the maximum number of PSFCH transmissions for each frequency band.
  • the present disclosure enables, in the NR SL CA scenario, if the PSFCHs of different carriers overlap, to perform power control on the PSFCHs and determine the number of PSFCHs to be sent accordingly.

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Abstract

La présente divulgation concerne des procédés de communication de liaison latérale, des terminaux et un support de stockage. Un procédé de communication de liaison latérale consiste à : utiliser une première puissance pour envoyer des canaux de rétroaction de liaison latérale (PSFCH) correspondant à une pluralité de porteuses, un domaine temporel se chevauchant entre des PSFCH d'au moins certaines des porteuses parmi les PSFCH correspondant à la pluralité de porteuses, et la première puissance étant inférieure ou égale à une première puissance d'envoi maximale prédéfinie. La présente divulgation envoie les PSFCH correspondant à la pluralité de porteuses au moyen de la première puissance, de telle sorte que le nombre correspondant de PSFCH est envoyé en fonction de la puissance appropriée dans le scénario d'agrégation de porteuses, améliorant ainsi l'efficacité de communication de liaison latérale.
PCT/CN2023/112771 2023-08-11 2023-08-11 Procédés de communication de liaison latérale, terminaux et support de stockage Pending WO2025035335A1 (fr)

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CN202380010638.0A CN119923935A (zh) 2023-08-11 2023-08-11 侧链路通信方法、终端及存储介质
PCT/CN2023/112771 WO2025035335A1 (fr) 2023-08-11 2023-08-11 Procédés de communication de liaison latérale, terminaux et support de stockage

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LG ELECTRONICS: "5G V2X with NR sidelink", 3GPP DRAFT; RP-200854, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. TSG RAN, no. Electronic Meeting; 20200629 - 20200703, 22 June 2020 (2020-06-22), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP052336755 *

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