Transmission power adjustment method, device, terminal, system, and storage medium

Abstract

The present disclosure relates to a transmission power adjustment method, a device, a terminal, a system, and a storage medium. The method comprises: receiving first information sent by a network device, wherein the first information is used for triggering a user equipment to initiate a random access transmission to a candidate cell to perform timing advance (TA) measurement, and the first information comprises at least one of a random access resource of the candidate cell and first beam information for initiation of random access; receiving configuration information sent by the network device, wherein the configuration information comprises a power ramping step for performing a random access retransmission; and on the basis of the first information and the power ramping step, determining first transmission power for the random access transmission. Thus, the transmission efficiency of a user sending a preamble sequence is improved, and then the success rate of RACH reception is increased.

Description

Transmission power adjustment method, device, terminal, system and storage medium Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular to a transmission power adjustment method, device, terminal, system, and storage medium. Background Art

[0002] During wireless communications, due to mobility, the network triggers a user / terminal handover to an appropriate cell based on mobility measurements. To reduce handover latency, multiple candidate cells are maintained for each user. When the network determines a handover is necessary based on beam measurements of each candidate cell and the current serving cell, it triggers the user to handover to the target cell, which is selected from the candidate cells.

[0003] Summary of the Invention

[0004] The embodiments of the present disclosure provide a transmission power adjustment method, device, terminal, system, and storage medium.

[0005] According to a first aspect of an embodiment of the present disclosure, a transmission power adjustment method is proposed, which is performed by a user equipment. The method includes:

[0006] receiving first information sent by a network device, where the first information is used to trigger a user equipment to initiate random access transmission to a candidate cell to perform timing advance value TA measurement, the first information including at least one of a random access resource of the candidate cell and first beam information for initiating random access, and the first information is sent to the user equipment by a serving cell of the user equipment;

[0007] receiving configuration information sent by a network device, the configuration information including a power step size for performing random access retransmission;

[0008] A first transmission power for the random access transmission is determined according to the first information and the boost power step.

[0009] According to a second aspect of an embodiment of the present disclosure, a transmission power adjustment method is proposed, which is performed by a network device. The method includes:

[0010] Sending first information, where the first information is used to trigger the user equipment to initiate random access transmission to the candidate cell to perform timing advance value TA measurement, the first information including at least one of random access resources of the candidate cell and first beam information for initiating random access, and the first information is sent to the user equipment by the serving cell of the user equipment;

[0011] Send configuration information, the configuration information including a boost power step for random access retransmission, the boost power step being used to instruct the user equipment to determine a first transmission power for the random access transmission based on the first information and the boost power step.

[0012] According to a third aspect of an embodiment of the present disclosure, a transmission power adjustment method is proposed, the method including:

[0013] The network device sends first information to the user equipment, where the first information is used to trigger the user equipment to initiate random access transmission to the candidate cell to perform timing advance value TA measurement, and the first information includes at least one of a random access resource of the candidate cell and first beam information for initiating random access;

[0014] The network device sends configuration information to the user equipment, where the configuration information includes a power step size for performing random access retransmission;

[0015] The user equipment determines a first transmission power for the random access transmission according to the first information and the boost power step.

[0016] According to a fourth aspect of an embodiment of the present disclosure, a user equipment is provided, including:

[0017] A first transceiver module is configured to receive first information sent by a network device, where the first information is used to trigger a user equipment to initiate random access transmission to a candidate cell to perform timing advance value TA measurement, the first information including at least one of a random access resource of the candidate cell and first beam information for initiating random access, and the first information is sent to the user equipment by a serving cell of the user equipment;

[0018] A second transceiver module is configured to receive configuration information sent by a network device, wherein the configuration information includes a power step size for performing random access retransmission;

[0019] A determination module is configured to determine a first transmission power of the random access transmission according to the first information and the boost power step.

[0020] According to a fifth aspect of an embodiment of the present disclosure, a network device is provided, including:

[0021] A first transceiver module is configured to send first information, where the first information is used to trigger a user equipment to initiate random access transmission to a candidate cell to perform timing advance value TA measurement, the first information including at least one of a random access resource of the candidate cell and first beam information for initiating random access, and the first information is sent to the user equipment by a serving cell of the user equipment;

[0022] The second transceiver module is configured to send configuration information, wherein the configuration information includes a power boosting step for random access retransmission, and the power boosting step is used to instruct the user equipment to determine the first transmission power of the random access transmission based on the first information and the power boosting step.

[0023] According to a sixth aspect of an embodiment of the present disclosure, a terminal is provided, including:

[0024] one or more processors;

[0025] The terminal is used to execute the transmission power adjustment method described in any one of the first aspects of this disclosure.

[0026] According to a seventh aspect of an embodiment of the present disclosure, a network device is provided, including:

[0027] one or more processors;

[0028] The access network device is used to execute the transmission power adjustment method described in any one of the second aspects of this disclosure.

[0029] According to the eighth aspect of an embodiment of the present disclosure, a communication system is provided, comprising a terminal and a network device, wherein the terminal is configured to implement the transmission power adjustment method described in any one of the first aspects of the present disclosure, and the network device is configured to implement the transmission power adjustment method described in any one of the second aspects of the present disclosure.

[0030] According to the ninth aspect of an embodiment of the present disclosure, a storage medium is provided, which stores instructions. When the instructions are executed on a communication device, the communication device executes a transmission power adjustment method as described in any one of the first aspect of the present disclosure or the second aspect of the present disclosure.

[0031] The embodiments of the present disclosure can increase the transmission efficiency of a preamble sequence sent by a user, thereby increasing the success rate of RACH (Random Access Channel) reception. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following drawings required for describing the embodiments are introduced. The following drawings are merely some embodiments of the present disclosure and do not impose specific limitations on the protection scope of the present disclosure.

[0033] FIG1a is a schematic diagram showing the architecture of a transmission power adjustment system according to an embodiment of the present disclosure.

[0034] FIG1 b is a schematic diagram illustrating a cell switching method according to an embodiment of the present disclosure.

[0035] FIG2 a is an interactive schematic diagram illustrating a transmission power adjustment method according to an embodiment of the present disclosure.

[0036] FIG2 b is a schematic diagram illustrating a method for adjusting transmission power according to an embodiment of the present disclosure.

[0037] FIG3 is a schematic flow chart of a transmission power adjustment method according to an embodiment of the present disclosure.

[0038] FIG4 is a schematic flow chart of a transmission power adjustment method according to an embodiment of the present disclosure.

[0039] FIG5 is a schematic flow chart of a transmission power adjustment method according to an embodiment of the present disclosure.

[0040] FIG6 is a schematic structural diagram of a user equipment proposed in an embodiment of the present disclosure.

[0041] FIG7 is a schematic diagram of the structure of a network device proposed in an embodiment of the present disclosure.

[0042] FIG8 is a schematic structural diagram of a communication device 8100 proposed in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0043] The embodiments of the present disclosure provide a transmission power adjustment method, device, terminal, system, and storage medium.

[0044] In a first aspect, an embodiment of the present disclosure provides a transmission power adjustment method, the method comprising:

[0045] receiving first information sent by a network device, where the first information is used to trigger a user equipment to initiate random access transmission to a candidate cell to perform timing advance value TA measurement, the first information including at least one of a random access resource of the candidate cell and first beam information for initiating random access, and the first information is sent to the user equipment by a serving cell of the user equipment;

[0046] receiving configuration information sent by a network device, the configuration information including a power step size for performing random access retransmission;

[0047] A first transmission power for the random access transmission is determined according to the first information and the boost power step.

[0048] In the above embodiment, the user equipment is triggered by the first information to initiate random access transmission to the candidate cell and the TA value of the candidate cell is measured, thereby increasing the first transmission power of the user sending the preamble sequence and improving the success rate of RACH reception.

[0049] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0050] According to the first information, it is determined whether the random access transmission is an initial transmission or a retransmission of the random access.

[0051] In combination with some embodiments of the first aspect, in some embodiments, the first information includes a first field, and the first field is used to indicate, through first coded information, whether the random access transmission is the initial transmission or the random access retransmission.

[0052] In combination with some embodiments of the first aspect, in some embodiments, the first information includes a second field, and the second field is used to indicate whether the random access transmission is the initial transmission or the number of retransmissions of the random access retransmission.

[0053] In conjunction with some embodiments of the first aspect, in some embodiments, it is determined that the second field matches an initial transmission identifier, and the random access transmission is determined to be the initial transmission;

[0054] It is determined that the second field does not match the initial transmission identifier, and the difference between the second coded information and the initial transmission identifier is determined to be the number of retransmissions.

[0055] In conjunction with some embodiments of the first aspect, in some embodiments, determining, based on the first information, whether the random access transmission is the initial transmission or the random access retransmission includes:

[0056] determining a time interval between the first information and second information, where the second information is used to trigger the user equipment to initiate a random access transmission to the candidate cell to perform a last TA measurement;

[0057] If the time interval is less than a set time interval threshold, it is determined that the random access transmission is the random access retransmission.

[0058] In conjunction with some embodiments of the first aspect, in some embodiments, determining the first transmission power of the random access transmission according to the first information and the boost power step includes:

[0059] determining, according to the first information, that the random access transmission is the random access retransmission;

[0060] The first transmission power is determined according to the boost power step.

[0061] In conjunction with some embodiments of the first aspect, in some embodiments, determining the first transmission power according to the boost power step size includes:

[0062] The random access transmission is the random access retransmission, and determining a number of retransmissions of the random access retransmission;

[0063] The first transmission power is determined according to the number of retransmissions and the power boosting step.

[0064] In conjunction with some embodiments of the first aspect, in some embodiments, the first information includes a third field, where the third field is used to indicate the number of retransmissions, and determining the number of retransmissions of the random access retransmission includes:

[0065] The number of retransmissions is determined according to the third field.

[0066] In conjunction with some embodiments of the first aspect, in some embodiments, determining the number of retransmissions of the random access retransmission includes:

[0067] The number of retransmissions is determined according to a retransmission counter.

[0068] In conjunction with some embodiments of the first aspect, in some embodiments, the method includes:

[0069] Determining that the user equipment performs the random access transmission once;

[0070] The number of transmissions of the random access transmission is accumulated according to the retransmission counter.

[0071] In combination with some embodiments of the first aspect, in some embodiments, the first transmission power is determined according to the boost power step and the number of retransmissions:

[0072] Obtaining the number of retransmissions of the random access retransmission;

[0073] determining a second transmission power for the retransmission access transmission based on the number of retransmissions and the initial transmission power of the random access transmission;

[0074] A minimum value is taken from the maximum transmission power of the user equipment and the second transmission power as the first transmission power.

[0075] In conjunction with some embodiments of the first aspect, in some embodiments, determining the first transmission power of the random access transmission according to the first information and the boost power step includes:

[0076] Determining, according to the first information, that the random access transmission is an initial transmission, and resetting a power boost value of the user equipment;

[0077] The first transmission power is determined according to the power increase step and the reset power increase value.

[0078] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0079] Reset the retransmission counter to its initial value.

[0080] In combination with some embodiments of the first aspect, in some embodiments, the first information includes a third field, and determining the first transmission power of the random access transmission according to the first information and the boost power step includes:

[0081] Determining that the third domain matches the initial transmission identifier, and determining a reset power boost value;

[0082] determining the first transmission power according to the power increase step and the reset power increase value; or,

[0083] Determining that the third field does not match the initial transmission identifier, and determining a target boost power value based on the third field and the boost power step;

[0084] The first transmission power is determined according to the target boost power value and the power boost value.

[0085] In combination with some embodiments of the first aspect, in some embodiments, the first information includes a fourth field, the fourth field is used to update the transmission beam of the random access transmission, and the determining the first transmission power of the random access transmission according to the first information and the boosting power step includes:

[0086] updating a transmission beam of the random access transmission in response to the fourth field, and resetting a power boost value;

[0087] The first transmission power is determined according to the fourth domain, the reset power increase value and the increase power step.

[0088] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0089] Reset the retransmission counter to its initial value.

[0090] In combination with some embodiments of the first aspect, in some embodiments, the first information includes a fifth field, where the fifth field is used to indicate that the random access retransmission is the initial transmission, and the reset power boost value includes:

[0091] The power boost value is reset according to the fifth field, wherein the fifth field matches the initial transmission identifier.

[0092] In combination with some embodiments of the first aspect, in some embodiments, the first information includes a sixth field, where the sixth field is used to indicate the number of retransmissions, and the determining the first transmission power according to the fourth field, the reset power increase value, and the increase power step includes:

[0093] Determining a historical number of retransmissions of the user equipment before changing the beam;

[0094] The first transmission power is determined according to the sixth field, the number of historical retransmissions and the power increase step.

[0095] In the above embodiment, the power of the random access process measured by the candidate cell TA is increased through the first information to increase the first transmission power of the user sending the preamble sequence, thereby increasing the success rate of RACH reception to obtain the TA value of the candidate cell.

[0096] In a second aspect, an embodiment of the present disclosure provides a transmission power adjustment method, performed by a network device, the method comprising:

[0097] Sending first information, where the first information is used to trigger the user equipment to initiate random access transmission to the candidate cell to perform timing advance value TA measurement, the first information including at least one of random access resources of the candidate cell and first beam information for initiating random access, and the first information is sent to the user equipment by the serving cell of the user equipment;

[0098] Send configuration information, the configuration information including a boost power step for random access retransmission, the boost power step being used to instruct the user equipment to determine a first transmission power for the random access transmission based on the first information and the boost power step.

[0099] In the above embodiment, the network instructs the user equipment to initiate random access transmission to the candidate cell through the first information. The user equipment determines the power boosting method in the random access process according to the first information, thereby increasing the first transmission power of the preamble sequence sent by the user, thereby increasing the success rate of RACH reception.

[0100] In combination with some embodiments of the second aspect, in some embodiments, the first information includes a first field, and the first field is used to indicate, through the first information, whether the random access transmission is an initial transmission or a random access retransmission.

[0101] In combination with some embodiments of the second aspect, in some embodiments, the first information includes a second field, and the second field is used to indicate through second coded information whether the random access transmission is the initial transmission or the random access retransmission and the number of retransmissions of the random access retransmission.

[0102] In conjunction with some embodiments of the second aspect, in some embodiments, it is determined that the second field matches the initial transmission identifier, and the random access transmission is determined to be the initial transmission;

[0103] It is determined that the second field does not match the initial transmission identifier, and the number of retransmissions is determined according to the second field.

[0104] In combination with some embodiments of the second aspect, in some embodiments, the first information includes a fourth field, and the fourth field is used to instruct the user equipment to update the transmission beam of the random access transmission and determine the first transmission power based on the fourth field.

[0105] In the above embodiment, the network instructs the user equipment to initiate random access transmission through the first information, and indicates the power boosting method during the access process in the first information to increase the user's first transmission power, thereby improving the success rate of RACH reception.

[0106] In a third aspect, an embodiment of the present disclosure provides a transmission power adjustment method, the method comprising:

[0107] The network device sends first information to the user equipment, where the first information is used to trigger the user equipment to initiate random access transmission to the candidate cell to perform timing advance value TA measurement, and the first information includes at least one of a random access resource of the candidate cell and first beam information for initiating random access;

[0108] The network device sends configuration information to the user equipment, where the configuration information includes a power step size for performing random access retransmission;

[0109] The user equipment determines a first transmission power for the random access transmission according to the first information and the boost power step.

[0110] In the above embodiment, the network device sends the first information to the user equipment. The user equipment triggers random access transmission to perform TA measurement according to the first information, and determines the first transmission power of the random access transmission according to the first information, thereby increasing the success rate of RACH reception and obtaining the TA value of the candidate cell.

[0111] In a fourth aspect, an embodiment of the present disclosure provides a user equipment, including:

[0112] A first transceiver module is configured to receive first information sent by a network device, where the first information is used to trigger a user equipment to initiate random access transmission to a candidate cell to perform timing advance value TA measurement, the first information including at least one of a random access resource of the candidate cell and first beam information for initiating random access, and the first information is sent to the user equipment by a serving cell of the user equipment;

[0113] A second transceiver module is configured to receive configuration information sent by a network device, wherein the configuration information includes a power step size for performing random access retransmission;

[0114] A determination module is configured to determine a first transmission power of the random access transmission according to the first information and the boost power step.

[0115] In the above embodiment, the power of the random access process measured by the candidate cell TA is increased through the first information to increase the first transmission power of the user sending the preamble sequence, thereby increasing the success rate of RACH reception to obtain the TA value of the candidate cell.

[0116] In a fifth aspect, an embodiment of the present disclosure provides a network device, including:

[0117] A first transceiver module is configured to send first information, where the first information is used to trigger a user equipment to initiate random access transmission to a candidate cell to perform timing advance value TA measurement, the first information including at least one of a random access resource of the candidate cell and first beam information for initiating random access, and the first information is sent to the user equipment by a serving cell of the user equipment;

[0118] The second transceiver module is configured to send configuration information, wherein the configuration information includes a power boosting step for random access retransmission, and the power boosting step is used to instruct the user equipment to determine the first transmission power of the random access transmission based on the first information and the power boosting step.

[0119] In the above embodiment, the network device sends the first information to the user equipment. The user equipment triggers random access transmission to perform TA measurement according to the first information, and determines the first transmission power of the random access transmission according to the first information, thereby increasing the success rate of RACH reception and obtaining the TA value of the candidate cell.

[0120] In a sixth aspect, an embodiment of the present disclosure provides a terminal, including:

[0121] one or more processors;

[0122] The terminal is used to execute the transmission power adjustment method described in any one of the first aspects of this disclosure.

[0123] In a seventh aspect, an embodiment of the present disclosure provides a network device, including:

[0124] one or more processors;

[0125] The access network device is used to execute the transmission power adjustment method described in any one of the second aspects of this disclosure.

[0126] In aspect 8, an embodiment of the present disclosure provides a communication system, comprising a terminal and a network device, wherein the terminal is configured to implement the transmission power adjustment method described in any one of the first aspects of the present disclosure, and the network device is configured to implement the transmission power adjustment method described in any one of the second aspects of the present disclosure.

[0127] In the ninth aspect, an embodiment of the present disclosure provides a storage medium, which stores instructions. When the instructions are executed on a communication device, the communication device executes the transmission power adjustment method as described in any one of the first aspect of the present disclosure or the second aspect of the present disclosure.

[0128] It is understandable that the above-mentioned terminals, network devices, communication systems or storage media are all used to execute the methods proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects in the corresponding methods and will not be repeated here.

[0129] The present disclosure provides a transmission power adjustment method, device, terminal, system, and storage medium. In some embodiments, the terms "transmission power adjustment method," "information processing method," and "communication method" are interchangeable; the terms "user equipment," "network equipment," "information processing device," and "communication device" are interchangeable; and the terms "information processing system" and "communication system" are interchangeable.

[0130] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, 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. In addition, 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 steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0131] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0132] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0133] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0134] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0135] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0136] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "A in one case, B in another case," or "in response to one case A, in response to another case B" may include the following technical solutions depending on 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); and in some embodiments, A and B (both A and B are executed). The above is also applicable when there are more branches such as A, B, and C.

[0137] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on 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). The above is also applicable when there are more branches such as A, B, C, etc.

[0138] The 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 any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if 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". "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". For another example, if 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". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.

[0139] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0140] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0141] In some embodiments, 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 less 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", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

[0142] In some embodiments, devices and equipment can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they can also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject", etc.

[0143] In some embodiments, "network" can be interpreted as devices included in the network, such as access network equipment, core network equipment, etc.

[0144] In some embodiments, "access network device (AN device)" may also be referred to as "radio access network device (RAN device)", "base station (BS)", "radio base station", "fixed station", and in some embodiments may also be understood as "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission and / or 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 (BWP)", etc.

[0145] In some embodiments, "terminal" or "terminal device" may be referred to as "user equipment (UE)", "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.

[0146] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0147] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0148] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0149] FIG1a is a schematic diagram of the architecture of a transmission power adjustment system according to an embodiment of the present disclosure. As shown in FIG1a , a communication system 100 includes a user equipment (terminal) 101 and a network device 102 .

[0150] In some embodiments, the user device 101 includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication capabilities, a smart car, a tablet computer, a computer with wireless transceiver capabilities, 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 thereto.

[0151] In some embodiments, the network device 102 is, for example, a node or device that accesses a terminal to a wireless network. The network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (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.

[0152] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0153] In some embodiments, the access network device can be composed of a centralized unit (CU) and a distributed unit (DU), where the CU can also be called a control unit. The CU-DU structure can be used to split the protocol layer of the access network device, with the functions of some protocol layers centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.

[0154] It can be understood that 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 skilled 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.

[0155] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1a, or a portion thereof, but are not limited thereto. The entities shown in FIG1a are illustrative only. The communication system may include all or part of the entities shown in FIG1a, or may include other entities other than those shown in FIG1a. The number and form of the entities are arbitrary, and the entities may be physical or virtual. The connection relationship between the entities is illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0156] The embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), 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) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X), systems utilizing other communication methods, and next-generation systems based on and extending these methods. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

[0157] L1 / L2based inter-cell mobility is proposed in relevant communication standards. Figure 1b is a schematic diagram of a cell switching method according to an embodiment of the present disclosure. As shown in Figure 1b, the base station will maintain multiple candidate cells for the user. As the user moves, when switching is required, a cell will be selected as the target cell according to the switching criteria, and the user equipment will be controlled to switch to the target cell. Different from the existing cell switching method, in order to reduce the switching delay and complete the switching as soon as possible, the switching rule is based on the measurement results of the user equipment L1 (physical layer), and the switching signaling is also dynamic signaling. In addition, it is necessary to measure the timing advance TA (Timing Advance) of the user to each cell in advance to avoid interference between multiple transmission signals on the network side.

[0158] In LTM, there are many measurement schemes for candidate cell TA. This includes support for measurement methods based on PDCCH (Physical Downlink Control Channel) Order RACH (Random Access Channel). In order to reduce the time overhead of candidate cell TA measurement, RAR (Random Access Response) transmission can be omitted in the process of determining RACH in LTM. If the network does not correctly receive the Preamble (preamble code) sent by the user equipment for measuring the TA value, the network needs to trigger RACH again through PDCCH order to perform TA measurement. At this time, the first received Preamble has failed. In order to make this transmission as successful as possible, you can consider increasing the transmission power of the RACH (random access channel) to the candidate cell to improve the success rate of RACH reception.

[0159] In the embodiment of the present disclosure, the power ramping (output power ramp) of RACH is calculated as follows: PRACH,b,f,c (i) = min{P CMAX,f,c (i),P PRACH,target,f,c +PL b,f,c}

[0160] Among them, P PRACH,b,f,c (i) is the transmission power of the Preamble, P CMAX,f,c (i) is the maximum transmit power of the user equipment, P PRACH,target,f,c is the target received power of PRACH (Physical Random Access Channel), PL b,f,cThe path loss of the downlink reference signal. During random access, if the user equipment does not correctly receive the RAR, it considers the preamble transmission to have failed and will retransmit the preamble and perform power ramping (increasing the transmit power based on the transmit power step size). Specifically, each retransmission gradually increases the transmit power of the preamble.

[0161] In the disclosed embodiment, in LTM, the PDCCH order RACH for candidate cell TA measurement may not have a RAR (Random Access Response) process, and the user cannot determine whether to retransmit the RACH and perform power boosting based on whether the RAR is successfully received.

[0162] FIG2a is an interactive schematic diagram of a transmission power adjustment method according to an embodiment of the present disclosure. As shown in FIG2a, an embodiment of the present disclosure relates to a transmission power adjustment method, the method comprising:

[0163] Step S2101 : The network device 102 sends first information to the user equipment 101 .

[0164] In some embodiments, terms such as "send", "transmit", "report", "download", "transmit", "bidirectional transmission", "send and / or receive" can be used interchangeably.

[0165] In some embodiments, the user equipment 101 receives the first information. Optionally, the first information is sent to the user equipment 101 by a serving cell corresponding to the user equipment 101.

[0166] In some embodiments, "obtain", "get", "get", "receive", "transmit", "bidirectional transmission", "send and / or receive" can be interchangeable, and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining by self-processing, autonomous implementation, etc.

[0167] In some embodiments, the names of information, etc. are not limited to the names described in the embodiments, and terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codeword", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0168] In some embodiments, the first information is used to trigger the user equipment to initiate random access transmission to the candidate cell to measure the timing advance value TA. After receiving the first information, the user equipment 101 triggers the initiation of random access transmission to the candidate cell, and the random access transmission is used to measure the TA value of the candidate cell.

[0169] In some embodiments, the name of the first information is not limited, and it can be, for example, "power indication information", "power increase information", "first indication information", "first trigger information", "power adjustment information", etc.

[0170] In some embodiments, the first information includes at least one of a random access resource of the candidate cell and first beam information for initiating random access, the random access resource is used to indicate that the user equipment 101 initiates a random access transmission to the candidate cell based on the resource, and the first beam information is used to indicate the beam information for the user equipment 101 to perform random access transmission.

[0171] In some embodiments, the first information is DCI (Downlink Control Information) information, and the first information may further include: Frequency domain resource assignment (frequency domain resource allocation information), Random Access Preamble index (random access preamble index information), UL (Up-Link, uplink) / SUL (Supplementary Uplink, supplementary uplink) indication, SS (Service Signal, service signal) / PBCH (Physical Broadcast Channel, physical broadcast channel) index, PRACH (Physical Random Access Channel, physical random access channel) coding index, candidate cell identifier (such as cellID) and reserved bit information, etc. For example, this embodiment provides a first information, which includes multiple information as shown in the following table:

[0172] In some embodiments, terms such as "resource block (RB)", "physical resource block (PRB)", "sub-carrier group (SCG)", "resource element group (REG)", "PRB pair", "RB pair", "resource element (RE)", and "sub-carrier" can be used interchangeably.

[0173] In some embodiments, the first information may also be used to determine whether the random access transmission is an initial transmission or a retransmission of the random access.

[0174] In some embodiments, the first information includes a first field.

[0175] In some embodiments, the first field is used to indicate, through first coded information, whether the random access transmission is an initial transmission or a random access retransmission. The transmission type of the random access transmission can be indicated by a fixed coded sequence number. For example, if the first coded information is 0 / 1, the random access transmission is determined to be an initial transmission; if the first coded information is 1 / 0, the random access transmission is determined to be a random access retransmission.

[0176] In some embodiments, the determination or judgment can be performed by a value represented by 1 bit (0 or 1), or by a true or false value (Boolean value) represented by true or false, or by comparison of numerical values ​​(for example, comparison with a predetermined value), but is not limited thereto.

[0177] In some embodiments, the terms "coding information," "codebook," "codeword," and "precoding matrix" may be used interchangeably. For example, a codebook may be a collection of one or more codewords / precoding matrices.

[0178] In some embodiments, the name of the first field is not limited, and may be, for example, "transmission indication information", "character information", "transmission type indication information", "transmission type coding information", "transmission number indication information", etc.

[0179] In some embodiments, the first information includes a second field.

[0180] In some embodiments, the second field is used to indicate whether the random access transmission is the initial transmission or the random access retransmission and the number of retransmissions of the random access retransmission. For example, the number indicated by the second field is M, which stipulates that when M=0, the random access transmission is the initial transmission; when M≠0, the random access transmission is a retransmission, and the number indicated by M at this time is the number of retransmissions of the random access retransmission. Optionally, the initial transmission identifier can be set according to actual needs, and the second field can be compared with the initial transmission identifier to determine whether the corresponding random access transmission is the initial transmission or the retransmission. In some embodiments, it is determined that the second field matches the initial transmission identifier and the random access transmission is determined to be the initial transmission; it is determined that the second field does not match the initial transmission identifier and the difference between the second coded information and the initial transmission identifier is determined to be the number of retransmissions.

[0181] In some embodiments, the random access transmission may be determined to be an initial transmission or a retransmission based on the time interval between the received first information and the second information, and the second information is used to trigger the user equipment to initiate a random access transmission to the candidate cell to perform the last TA measurement. The time interval between the first information and the second information is determined, and if the time interval is less than a set time interval threshold, the random access transmission is determined to be a random access retransmission. For example, the time interval between the first information received this time and the second information received last time may be calculated. When the time interval is less than the time interval threshold, the random access transmission performed this time is determined to be a random access retransmission; when the time interval is greater than or equal to the time interval threshold, the random access transmission performed this time is determined to be an initial transmission.

[0182] In some embodiments, terms such as "moment", "time point", "time", and "time position" can be replaced with each other, and terms such as "duration", "period", "time window", "window", and "time" can be replaced with each other.

[0183] In some embodiments, the first information includes a first field and a second field. The first field can be used to indicate whether the random access transmission is an initial transmission or a random access retransmission. When the random access transmission is a random access retransmission, the second field is used to indicate the number of retransmissions of the random access retransmission at this time.

[0184] Step S2102: The network device 102 sends configuration information.

[0185] In some embodiments, the user equipment 101 receives configuration information.

[0186] In some embodiments, the configuration information includes a power step for performing random access retransmission, and the first information is used to instruct the user equipment 101 to perform random access transmission. In order to improve the success rate of random access retransmission, it is necessary to increase the first transmission power of the random access transmission, thereby obtaining the TA value of the candidate cell. In this embodiment, the power step for performing random access retransmission is indicated by the configuration information. Optionally, the first transmission power of the random access transmission can be determined by the power step and the number of retransmissions of the random access retransmission. For example, when the number of retransmissions of the random access retransmission is determined to be 4 through the above steps, the first transmission power = initial transmission power + 4 × power step.

[0187] Step S2103: The user equipment 101 determines a first transmission power for random access transmission according to the first information and the power boosting step size.

[0188] In some embodiments, based on the first information, the random access transmission is determined to be a random access retransmission, and the first transmission power is determined based on the boost power step. For example, when the first information indicates that the random access transmission performed by the user equipment 101 is a random access retransmission, the first transmission power is increased based on the boost power step to obtain the first transmission power of the random access transmission. The boost power step can be added to the first transmission power of the historical access transmission to obtain the first transmission power of the random access transmission.

[0189] In some embodiments, the terms "component carrier (CC)", "cell", "frequency carrier", "carrier frequency" and the like can be used interchangeably.

[0190] In some embodiments, the random access transmission is a random access retransmission, the number of retransmissions of the random access retransmission is determined, and the first transmission power is determined based on the number of retransmissions and the power increase step. When the random access transmission is determined to be a random access retransmission based on the first information, the number of retransmissions of the random access retransmission is determined. At this time, the number of retransmissions of the random access retransmission can be indicated by the first information, and the number of retransmissions can also be indicated by other information. The method for determining the number of retransmissions is not limited in this embodiment. In order to improve the success rate of RACH reception, the transmit power needs to be increased for each random access retransmission. Therefore, each retransmission of the random access transmission is accompanied by an increase in the first transmission power. The power value of each increase in the first transmission power is the power increase step. The number of retransmissions × the power increase step is superimposed on the initial transmission power to obtain the transmission power of this random access transmission.

[0191] In some embodiments, the number of retransmissions is determined based on the first information, wherein the first information includes a third field, the third field is used to indicate the number of retransmissions, and the maximum value of the third field is the maximum number of times the transmission power is allowed to be increased. For example, the first information includes a third field, the third field is used to indicate the number of retransmissions of the triggered RACH, wherein there is a limit on the value of the third field, and the maximum value indicated by the third field is the maximum number of times the transmission power is allowed to be increased in the user equipment 101.

[0192] In some embodiments, a retransmission counter is defined in the user equipment 101 .

[0193] In some embodiments, the retransmission counter is used to count the number of transmissions of the random access transmission.

[0194] In some embodiments, the number of retransmissions is determined based on a retransmission counter. For example, when the user equipment 101 performs a random access transmission, the retransmission counter counts once, and the number of retransmissions of the current random access transmission can be determined by reading the value of the retransmission counter.

[0195] In some embodiments, the name of the retransmission counter is not limited, and may be, for example, a "counter", a "retransmission count counter", a "counting device", a "counter", a "retransmission counting device", etc.

[0196] In some embodiments, a user equipment 101 performs a random access transmission, and a retransmission counter is used to accumulate the number of random access transmissions. For example, a retransmission counter is used to accumulate the number of random access transmissions of the user equipment 101. When the user equipment 101 completes a random access transmission, the retransmission counter is incremented by one.

[0197] In some embodiments, the number of retransmissions of the random access retransmission is obtained, and the second transmission power of the retransmission access transmission is determined based on the number of retransmissions and the initial transmission power of the random access transmission. The minimum value is taken from the maximum transmission power and the second transmission power of the user equipment as the transmission power. For example, in this embodiment, when the random access transmission is determined to be a random access retransmission, the number of retransmissions of the random access retransmission is determined, and based on the number of retransmissions and the initial transmission power of the initial transmission performed by the user equipment 101, the number of retransmissions is multiplied by the boost power step size, and the result is added to the initial transmission power to obtain the second transmission power of the retransmission access transmission. The minimum value is then taken from the maximum transmission power allowed by the user equipment 101 and the second transmission power as the first transmission power of the current random access transmission.

[0198] For example, the transmission power of the user equipment 101 can be determined by the following formula: RACH =min{P CMAX ,P initial+ N × Step}

[0199] Among them, P RACH is the transmission power of random access transmission, P CMAX is the maximum transmission power allowed by the user equipment 101, P initial is the initial transmission power, N is the number of retransmissions, and Step is the power step size. Optionally, in one embodiment, considering the path loss during RACH transmission, the path loss value can be added to the second transmission power to improve the success rate of the candidate cell receiving the RACH signal.

[0200] In some embodiments, the initial transmission power of the user equipment 101 during the initial power transmission can be calculated as follows: initial =P target +PL P target =preambleReceivedTargetPower+DELTA_PREAMBLE +(PREAMBLE_POWER_RAMPING_COUNTER–1)×PREAMBLE_POWER_RAMPING_STEP+POWER_OFFSET_2STEP_RA

[0201] Among them, P initial is the initial transmission power, P target is the preset transmission power, and PL is the downlink reference signal path loss value.

[0202] preambleReceivedTargetPower is the transmission power of the initial Preamble, which can be configured by RRC, DELTA PREAMBLE is the power impact value, PREAMBLE_POWER_RAMPING_COUNTER is the number of retransmissions, which is 1, the power step size for each retransmission, and the additional power offset required when using a 2-step random access process.

[0203] In some embodiments, the transmission power of the user equipment 101 may also be calculated in the following manner: RACH =min{P CMAX ,P target +PL}

[0204] P target =preambleReceivedTargetPower+DELTA_PREAMBLE+N×Step+OFFSET

[0205] Here, OFFSET is a power compensation value, which can be set based on different transmission beams.

[0206] FIG2b is a schematic diagram illustrating a transmission power adjustment method according to an embodiment of the present disclosure. As shown in FIG2b , user equipment 101 performs a RACH transmission based on first information at time t1. At time t2, it receives the first information again and performs a second RACH transmission based on the first information. However, due to relevant reasons, the candidate cell fails to successfully receive the RACH transmission initiated at time t2. When another RACH transmission is triggered based on the first information at time t3, user equipment 101 can determine that this RACH transmission is a retransmission based on the first information or the time interval between times t1 and t3. Based on the power increase step size in the first information, the transmission power of the RACH transmission at time t3 is increased, thereby increasing the success rate of RACH reception. The reasons that may affect the RACH transmission power received by the candidate cell may include: low RACH transmission power; obstruction during transmission; interference from other signals on the RACH transmission signal, resulting in the candidate cell failing to successfully receive the signal; or timing conflicts between the RACH transmission signal and other uplink signals, resulting in the candidate cell failing to successfully receive the signal. The reasons for the candidate cell failing to successfully receive the RACH are not limited in this embodiment.

[0207] In some embodiments, based on the first information, it is determined that the random access transmission is the initial transmission, and the power boost value of the user equipment is reset. Optionally, in this embodiment, when the random access transmission is determined to be a retransmission, the transmission power of the random access retransmission can be determined in two ways: (1) the number of retransmissions of the random access retransmission is determined, and the transmission power of the random access retransmission is determined according to the number of retransmissions, the boost power step and the initial transmission power, that is, the transmission power = the number of retransmissions × the boost power step + the initial transmission power. (2) The user equipment 101 accumulates the boost value of each retransmission, and when it is determined that the random access transmission is a random access retransmission, the boost power step is accumulated again on the accumulated value until the maximum accumulated number or accumulated value is reached. Thus, the transmission power of the random access transmission is obtained.

[0208] When it is determined through the first information that the current random access transmission is the initial transmission, it is necessary to reset the power boost value of the user equipment 101, that is, reset the historical transmission power to the initial value.

[0209] In some embodiments, when the random access transmission is determined to be an initial transmission, the value of the retransmission counter is reset to an initial value. In this embodiment, the user equipment 101 is provided with a retransmission counter, which is used to count the number of random access retransmissions. When the random access transmission is determined to be an initial transmission based on the first information, the retransmission counter is reset to its initial value. For example, the initial value of the retransmission counter can be 0 or 1. Other values ​​can also be set for the retransmission counter based on actual needs, which is not limited in this embodiment.

[0210] In some embodiments, the first information includes a third field.

[0211] In some embodiments, the third field is used to indicate whether the random access transmission is an initial transmission or a random access retransmission, and when the random access transmission is a random access retransmission, indicates the number of retransmissions of the random access retransmission.

[0212] For example, it is determined that the third domain matches the initial transmission identifier, the reset power boost value is determined, the transmission power is determined based on the boost power step and the reset power boost value, and the third domain does not match the initial transmission identifier. The target boost power value is determined based on the fourth coding information and the boost power step, and the transmission power is determined based on the target boost power value and the power boost value. When the third domain matches the initial transmission identifier, it is determined that this random access transmission is the initial transmission, and the power boost value of the user equipment 101 is reset so that the power value of the current RACH transmission is the initial transmission power. The transmission power of the current random access transmission is determined based on the reset power boost value and the boost power step, where the initial transmission identifier can be 0 or 1. When the third domain does not match the initial transmission identifier, it is determined that this random access transmission is a random access retransmission, and the transmission power is determined based on the fourth coding information corresponding to the third domain. Optionally, the transmission power of the random access transmission can be determined by the following formula: P RACH =(NN o )×Step+P initial

[0213] Among them, P RACH is the transmission power of random access transmission, N is the fourth coding information, N o is the initial transmission mark, Step is the power step length, P initial is the initial transmission power.

[0214] In some embodiments, the first information includes a fourth field.

[0215] In some embodiments, the fourth field is used to update the transmission beam of the random access transmission.

[0216] In some embodiments, the name of the fourth field is not limited, and it can be, for example, "transmission beam update information", "beam update information", "beam information", etc.

[0217] In some embodiments, the user equipment 101 updates the transmission beam of the random access transmission based on the fourth field in the first information. When the transmission beam is updated, it indicates that the beam resources occupied by the RACH for the current random access transmission are different from the beam resources occupied by the historical random access transmission. Therefore, it is necessary to re-perform the random access transmission based on the updated transmission beam. At this time, the random access transmission is the first transmission. When the transmission beam is updated using the fourth field, the power boost value of the current random access transmission is reset. The transmission power of the current random access transmission is determined based on the fourth field, the reset power boost value, and the boost power step.

[0218] In some embodiments, a retransmission counter is defined in the user equipment 101. When the user equipment 101 updates the transmission beam of the random access transmission according to the fourth field in the first information, the value of the retransmission counter is reset to an initial value, where the initial value can be 0 or 1.

[0219] In some embodiments, the first information includes a fifth field.

[0220] In some embodiments, the fifth field is used to indicate whether the random access transmission is an initial transmission or a random access retransmission. When the random access transmission is a random access retransmission, the fifth field is used to indicate the number of retransmissions of the random access retransmission.

[0221] In some embodiments, the name of the fifth field is not limited, and may be, for example, "transmission number indication information", "transmission number information", "transmission type coding information", "transmission number coding information", "transmission character information", etc.

[0222] In some embodiments, the first message includes a fourth field. When the fourth field updates the transmission beam of the random access transmission, the power boost value of the current random access transmission is reset based on the fifth field, where the fifth field matches the initial transmission identifier. That is, when the first message includes the fourth field, the network device 102 updates the fifth field in the first message, replacing it with the initial transmission identifier, and instructs the user equipment to reset the power boost value via the fifth field.

[0223] In some embodiments, the first information includes a sixth field.

[0224] In some embodiments, the sixth field is used to indicate the number of retransmissions of random access retransmissions.

[0225] In some embodiments, the name of the sixth field is not limited, and may be, for example, "transmission indication information", "character information", "transmission type indication information", "transmission type coding information", "transmission number indication information", etc.

[0226] In some embodiments, the first information includes a fourth field. When the transmission power of the random access transmission is updated through the fourth field, the number of historical retransmissions of the user equipment before the beam change is determined, and the transmission power is determined based on the sixth field, the number of historical retransmissions, and the power step size. Optionally, the transmission power of the random access transmission can be determined by the following formula: RACH =(NN old )×Step+P initial

[0227] Among them, P RACH is the transmission power of random access transmission, N is the sixth field, N old is the number of historical retransmissions, Step is the power increase step, Pinitiai is the initial transmission power.

[0228] Step S2104: The user equipment 101 transmits third information based on the first transmission power.

[0229] In some embodiments, network device 102 receives third information.

[0230] In some embodiments, the third information is used to trigger the candidate cell to perform TA measurement.

[0231] In some embodiments, the name of the third information is not limited, and it can be, for example, "MSG1 / MSGA of random access", "preamble sequence", etc.

[0232] Step S2105: The network device 102 performs TA measurement according to the second information.

[0233] In some embodiments, the third information is used to measure the TA value of the candidate cell corresponding to the user equipment 101.

[0234] The communication method according to the embodiments of the present disclosure may include at least one of steps S2101 to S2105. For example, step 1 may be implemented as an independent embodiment, step 2 may be implemented as an independent embodiment, steps 1+3 may be implemented as an independent embodiment, and steps 1+2+3 may be implemented as an independent embodiment, but are not limited thereto.

[0235] In some embodiments, step S2101 and step S2102 may be executed in an interchanged order or simultaneously.

[0236] In some embodiments, step S2103, step S2104, and step S2105 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0237] In some embodiments, step S2101 and step S2102 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0238] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2 a .

[0239] FIG3 is a flow chart of a transmission power adjustment method according to an embodiment of the present disclosure. As shown in FIG3 , the embodiment of the present disclosure relates to a transmission power adjustment method, which is executed by a user equipment, and the method includes:

[0240] Step S3101: Receive first information sent by a network device.

[0241] In some embodiments, the user equipment 101 receives the first information sent by the network device 102, but is not limited thereto and may also receive the first information sent by other entities.

[0242] In some embodiments, the user equipment 101 obtains first information specified by a protocol.

[0243] In some embodiments, the user equipment 101 obtains the first information through RRC signaling, MACCE signaling or DCI signaling of the network.

[0244] In some embodiments, the user equipment 101 performs processing to obtain the first information.

[0245] In some embodiments, the first information is sent by the network device 102 to the user equipment 101 via the serving cell.

[0246] In some embodiments, when the serving cell detects that the user equipment 101 is far away from the current serving cell and needs to perform cell handover to select a target cell from candidate cells as the serving cell, the serving cell generates first information and sends it to the user equipment 101 .

[0247] In some embodiments, step S3101 is omitted, and the terminal 101 autonomously implements the function indicated by the first information, or the above function is default or by default.

[0248] The optional implementation of step S3101 can refer to the optional implementation of step S2101 in Figure 2a and other related parts in the embodiment involved in Figure 2a, which will not be repeated here.

[0249] Step S3102: Receive configuration information sent by the network device.

[0250] In some embodiments, the configuration information includes a power step size for performing random access retransmission.

[0251] In some embodiments, the user device 101 receives configuration information sent by the network device 102, but is not limited thereto and may also receive configuration information sent by other entities.

[0252] In some embodiments, the user equipment 101 obtains configuration information specified by the protocol.

[0253] In some embodiments, the user equipment 101 obtains configuration information from upper layer(s).

[0254] In some embodiments, the user equipment 101 performs processing to obtain the configuration information.

[0255] The optional implementation of step S3102 can refer to the optional implementation of step S2102 in Figure 2a and other related parts in the embodiment involved in Figure 2a, which will not be repeated here.

[0256] Step S3103: Determine a first transmission power for random access transmission.

[0257] In some embodiments, the user equipment 101 determines the transmission power of the random access transmission according to the first information and the boost power step.

[0258] In some embodiments, the user equipment 101 may also determine the transmission power of the random access transmission according to the boost power step in the configuration information.

[0259] The optional implementation of step S3103 can refer to the optional implementation of step S2103 in Figure 2a and other related parts in the embodiment involved in Figure 2a, which will not be repeated here.

[0260] Step S3104: transmit the third information.

[0261] In some embodiments, the user equipment 101 may transmit the third information according to the transmission power.

[0262] In some embodiments, the third information is sent to the candidate cell, but is not limited thereto and may also be sent to other cells.

[0263] The optional implementation of step S3104 can refer to the optional implementation of step S2104 in Figure 2a and other related parts in the embodiment involved in Figure 2a, which will not be repeated here.

[0264] The communication method according to the embodiments of the present disclosure may include at least one of steps S3101 to S3103. For example, step 1 may be implemented as an independent embodiment, step 2 may be implemented as an independent embodiment, steps 1+3 may be implemented as an independent embodiment, and steps 1+2+3 may be implemented as an independent embodiment, but are not limited thereto.

[0265] In some embodiments, steps S3101 and S3102 may be executed in an interchanged order or simultaneously.

[0266] In some embodiments, step S3104 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0267] FIG4 is a flow chart of a transmission power adjustment method according to an embodiment of the present disclosure. As shown in FIG4 , the embodiment of the present disclosure relates to a transmission power adjustment method, which is executed by a network device. The method includes:

[0268] Step S4101, sending the first information.

[0269] In some embodiments, the first information is used to trigger the user equipment to initiate random access transmission to the candidate cell to perform timing advance value TA measurement. The first information includes at least one of the random access resources of the candidate cell and the first beam information for initiating random access. The first information is sent to the user equipment by the service cell of the user equipment.

[0270] In some embodiments, the network device 102 sends the first information to the user equipment 101, but is not limited thereto and may also send the first information to other entities.

[0271] In some embodiments, the network device 102 may send the first information to other entities, and the other entities transmit the first information to the user device 101 .

[0272] Optionally, the first information is used to trigger the user equipment 101 to initiate a random contact transmission to perform TA measurement. For optional implementations, see the optional implementations of step S2101 and step S2103 in FIG. 2a , and other related parts of the embodiment involved in FIG. 2 , which will not be described in detail here.

[0273] The optional implementation of step S4101 can refer to the optional implementation of step S2101 in Figure 2a and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0274] Step S4102, sending configuration information.

[0275] In some embodiments, the configuration information includes a power boost step for performing random access retransmission, and the power boost step is used to instruct the user equipment to determine the transmission power of the random access transmission according to the first information and the power boost step.

[0276] In some embodiments, the network device 102 sends configuration information to the user device 101, but is not limited thereto and may also send configuration information to other entities.

[0277] In some embodiments, the network device 102 performs processing to obtain the second information.

[0278] The optional implementation of step S4102 can refer to the optional implementation of step S2102 in Figure 2a and other related parts in the embodiment involved in Figure 2a, which will not be repeated here.

[0279] The transmission power adjustment method involved in the embodiments of the present disclosure may include at least one of steps S4101 to S4102. For example, step 1 may be implemented as an independent embodiment, step 2 may be implemented as an independent embodiment, and steps 1+2 may be implemented as independent embodiments, but are not limited thereto.

[0280] In some embodiments, steps S4101 and S4102 may be executed in an interchanged order or simultaneously.

[0281] FIG5 is a flow chart of a transmission power adjustment method according to an embodiment of the present disclosure. As shown in FIG5 , the embodiment of the present disclosure relates to a transmission power adjustment method, which includes:

[0282] Step S5101: Receive first information sent by a service cell of a network device.

[0283] In some embodiments, the first information is used to trigger the user equipment to initiate random access to the candidate cell to perform TA measurement.

[0284] In some embodiments, the first indication information includes at least random access resource information and random access beam information sent by the candidate cell.

[0285] Optionally, it may be determined, based on the first information, whether the currently triggered RACH is an initial transmission or a random access retransmission.

[0286] In some embodiments, when a user initiates a RACH to a candidate cell through a first message, the first message may include a 1-bit indicating whether the triggered RACH is an initial transmission or a random access retransmission. For example, if the bit is 1 / 0, it indicates an initial transmission, and if the bit is 0 / 1, it indicates a random access retransmission.

[0287] In some embodiments, the first information includes M bits of information, where the M bits of information is used to indicate to the user equipment whether the currently triggered RACH is an initial transmission or a random access retransmission, and, if it is a random access retransmission, the number of retransmissions of the random access retransmission.

[0288] Optionally, it is specified that if M is 0 or 1, this RACH transmission is the initial transmission; if M>1, this RACH transmission is a retransmission, and the number of retransmissions is M-1; if M is specified as 0 to indicate the initial transmission, then M>0 indicates that this RACH transmission is a retransmission, where M is the number of retransmissions.

[0289] In some embodiments, the user equipment may determine whether the RACH transmission is a retransmission based on the time interval between two received first messages triggering the initiation of a RACH to the same candidate cell. If the time interval is less than a time threshold, the RACH transmission is considered to be a random access retransmission.

[0290] The optional implementation of step S5101 can refer to the optional implementation of step S2101 in Figure 2a and other related parts in the embodiment involved in Figure 2a, which will not be repeated here.

[0291] Step S5102: Receive configuration information sent by the network device.

[0292] In some embodiments, the configuration information includes at least a power step size for each power transfer.

[0293] The optional implementation of step S5102 can refer to the optional implementation of step S2101 in Figure 2a and other related parts in the embodiment involved in Figure 2a, which will not be repeated here.

[0294] Step S5103: In response to the triggered RACH being a random access retransmission, the power of the RACH transmission is increased.

[0295] In some embodiments, in response to the RACH being a random access retransmission, the number of retransmissions is determined.

[0296] Optionally, the first information indicates the number of retransmissions of the triggered RACH, and N is the indicated number M or (M-1), where the maximum value that M bits can indicate is the maximum number of times the user equipment is allowed to perform upscaling.

[0297] Optionally, a counter is introduced to record the number of retransmissions of the currently transmitted RACH, wherein the initial value of the counter is 0 or 1. If the initial value is 0, the number of retransmissions = the displayed value of the counter; if the initial value is 1, the number of retransmissions = the displayed value of the counter - 1.

[0298] In some embodiments, the RACH power boost value is N×Step, where N is the number of RACH retransmissions and Step is the power boost step size.

[0299] Optionally, the current RACH transmission power triggered by the first information can be calculated as follows: RACH =min{P CMAX ,P initial +N×Step}

[0300] Among them, P RACH is the transmission power of random access transmission, P CMAX is the maximum transmission power allowed by the user equipment 101, P initial is the initial transmission power, N is the number of retransmissions, and Step is the power increase step size.

[0301] The optional implementation of step S5103 can refer to the optional implementation of step S2103 in Figure 2a and other related parts in the embodiment involved in Figure 2a, which will not be repeated here.

[0302] Step S5104: reset the power boost value.

[0303] In some embodiments, if the triggered RACH is an initial transmission, the power boost value is set to zero.

[0304] Optionally, in the case of introducing a counter, when it is determined that the RACH is an initial transmission, the counter is reset to restore the counter to an initial value of 0 or 1.

[0305] Optionally, for the case where the number of times is indicated in the first information, whether to reset the boost power is determined based on the value of M. When M matches the initial value, the boost power is reset; when M does not match the initial value, the current boost power is superimposed by the boost power value to obtain the transmission power of the current RACH transmission.

[0306] In some embodiments, if retransmission is indicated in the first information, but a new beam is indicated for the user equipment in the first information when triggered, and the user equipment is instructed to perform RACH transmission based on the new beam information, the power boost value needs to be reset.

[0307] Optionally, a counter is introduced, and when new beam information is indicated in the first information, or the beam information of the current RACH transmission is updated through the first information, the value of the counter is reset to an initial value of 0 or 1.

[0308] Optionally, if the number of times is indicated in the first information, M in the first information is an initial value of 0 or 1.

[0309] Optionally, when new beam information is indicated in the first information, or when the beam information of the current RACH transmission is updated by the first information, the transmission power of the current RACH transmission is calculated by the following formula: RACH =(NN old )×Step+P initial

[0310] Among them, P RACH is the transmission power of random access transmission, N is the sixth field, N old is the number of historical retransmissions, Step is the power increase step, P initial is the initial transmission power.

[0311] The optional implementation of step S5104 can refer to the optional implementation of step S2103 in Figure 2a and other related parts in the embodiment involved in Figure 2a, which will not be repeated here.

[0312] The communication method involved in the embodiments of the present disclosure may include at least one of steps S5101 to S5104. For example, step 1 may be implemented as an independent embodiment, step 2 may be implemented as an independent embodiment, steps 1+2+3 may be implemented as an independent embodiment, and steps 1+2+4 may be implemented as an independent embodiment, but are not limited thereto.

[0313] In some embodiments, steps S5101 and S5102 may be executed in an interchanged order or simultaneously.

[0314] In some embodiments, steps S5103 and S5104 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0315] In the embodiments of the present disclosure, some or all of the steps and their optional implementations may be arbitrarily combined with some or all of the steps in other embodiments, or may be arbitrarily combined with the optional implementations of other embodiments.

[0316] The embodiments of the present disclosure further provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0317] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may 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 the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various 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 within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0318] In the embodiments of the present disclosure, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution capabilities, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationship of the hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and implementing the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0319] FIG6 is a schematic diagram of the structure of a user equipment proposed in an embodiment of the present disclosure. As shown in FIG6 , the user equipment 6100 may include at least one of: a first transceiver module 6101 , a second transceiver module 6102 , a determination module 6103 , and the like.

[0320] In some embodiments, the first transceiver module 6101 is configured to receive first information sent by a network device, the first information being used to trigger a user equipment to initiate a random access transmission to a candidate cell to perform timing advance (TA) measurement, the first information including at least one of the random access resources of the candidate cell and first beam information for initiating random access. The second transceiver module 6102 is configured to receive configuration information sent by the network device, the configuration information including a power step for performing random access retransmissions. The determination module 6103 is configured to determine the transmission power of the random access transmission based on the first information and the power step. Optionally, the first transceiver module 6101 is configured to perform at least one of the communication steps, such as receiving, performed by the user equipment 101 in any of the above methods, which are not further described herein. Optionally, the second transceiver module 6102 is configured to perform at least one of the other steps performed by the user equipment 101 in any of the above methods, which are not further described herein. Optionally, the determination module 6103 is configured to perform at least one of the determination steps performed by the user equipment 101 in any of the above methods, which are not further described herein.

[0321] FIG7 is a schematic structural diagram of a network device according to an embodiment of the present disclosure. As shown in FIG7 , a network device 7100 may include at least one of a first transceiver module 7101 and a second transceiver module 7102 .

[0322] In some embodiments, the first transceiver module 7101 is used to send first information, the first information is used to trigger the user equipment to initiate random access transmission to the candidate cell to perform timing advance value TA measurement, the first information includes at least one of the random access resources of the candidate cell and the first beam information for initiating random access, the second transceiver module 7102 is used to send configuration information, the configuration information includes the boost power step for random access retransmission, the boost power step is used to instruct the user equipment to determine the transmission power of the random access transmission according to the first information and the boost power step. Optionally, the above-mentioned first transceiver module 7101 is used to perform at least one of the sending / receiving and other communication steps performed by the network device 102 in any of the above methods, which will not be repeated here. Optionally, the above-mentioned second transceiver module 7102 is used to perform at least one of the other steps performed by the network device 102 in any of the above methods, which will not be repeated here.

[0323] Figure 8 is a schematic diagram of the structure of a communication device 8100 proposed in an embodiment of the present disclosure. Communication device 8100 can be a network device (e.g., an access network device, a core network device, etc.), a terminal (e.g., a user equipment, etc.), 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. Communication device 8100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0324] As shown in Figure 8, the communication device 8100 includes one or more processors 8101. The processor 8101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can 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 programs, and process program data. The communication device 8100 is used to perform any of the above methods.

[0325] In some embodiments, the communication device 8100 further includes one or more memories 8102 for storing instructions. Optionally, all or part of the memories 8102 may be located outside the communication device 8100.

[0326] In some embodiments, the communication device 8100 further includes one or more transceivers 8103. When the communication device 8100 includes one or more transceivers 8103, the transceiver 8103 performs at least one of the communication steps such as sending and / or receiving in the above method, and the processor 8101 performs at least one of the other steps.

[0327] In some embodiments, a transceiver may include a receiver and / or a transmitter. The receiver and transmitter may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, and transceiver circuit may be used interchangeably; the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be used interchangeably; and the terms receiver, receiving unit, receiver, and receiving circuit may be used interchangeably.

[0328] In some embodiments, the communication device 8100 may include one or more interface circuits 8104. Optionally, the interface circuit 8104 is connected to the memory 8102. The interface circuit 8104 may be configured to receive signals from the memory 8102 or other devices, and may be configured to send signals to the memory 8102 or other devices. For example, the interface circuit 8104 may read instructions stored in the memory 8102 and send the instructions to the processor 8101.

[0329] The communication device 8100 described in the above embodiment may be a network device or a terminal, but the scope of the communication device 8100 described in the present disclosure is not limited thereto, and the structure of the communication device 8100 may not be limited by FIG8 . The communication device may be an independent device or may be part of a larger device. For example, 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, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0330] The present disclosure also proposes a storage medium having instructions stored thereon, which, when executed on the communication device 8100, causes the communication device 8100 to execute any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto and may also be a temporary storage medium.

[0331] The present disclosure also provides a program product, which, when executed by the communication device 8100, enables the communication device 8100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0332] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.

Claims

1. A transmission power adjustment method, characterized in that: The method is performed by a user device and includes: receiving first information sent by a network device, where the first information is used to trigger a user equipment to initiate a random access transmission to a candidate cell to perform a timing advance value TA measurement, where the first information includes at least one of a random access resource of the candidate cell and first beam information for initiating random access, and the first information is sent by a serving cell of the user equipment to the user equipment; Receiving configuration information sent by a network device, the configuration information including a power step size for performing random access retransmission; A first transmission power of the random access transmission is determined according to the first information and the boost power step.

2. The method according to claim 1, characterized in that The method further comprises: According to the first information, it is determined whether the random access transmission is an initial transmission or a retransmission of the random access.

3. The method according to claim 2, characterized in that The first information includes a first field, and the first field is used to indicate that the random access transmission is the initial transmission or to indicate that the random access transmission is a retransmission.

4. The method according to claim 2, characterized in that: The first information includes a second field, where the second field is used to indicate whether the random access transmission is the initial transmission or the number of retransmissions of the random access retransmission.

5. The method according to claim 4, characterized in that: The second domain matches the initial transmission identifier, and determines that the random access transmission is the initial transmission; The second field does not match the initial transmission identifier, and it is determined that the random access transmission is a retransmission.

6. The method according to claim 2, characterized in that: The determining, according to the first information, that the random access transmission is an initial transmission or a random access retransmission includes: determining a time interval between the first information and second information, where the second information is used to trigger the user equipment to initiate a random access transmission to the candidate cell to perform a last TA measurement; The random access transmission is determined to be the random access retransmission, wherein the time interval is less than a set time interval threshold.

7. The method according to claim 2, characterized in that The determining, according to the first information and the boost power step, a first transmission power of the random access transmission includes: Determining, according to the first information, that the random access transmission is the random access retransmission; The first transmission power is determined according to the boost power step.

8. The method according to claim 7, characterized in that The determining the first transmission power according to the boost power step size includes: The random access transmission is the random access retransmission, and determining a number of retransmissions of the random access retransmission; The first transmission power is determined according to the number of retransmissions and the power boost step.

9. The method according to claim 8, characterized in that The first information includes a third field, and the third field is used to indicate the number of retransmissions, including: The number of retransmissions is determined according to the third field.

10. The method according to claim 8, characterized in that The determining the number of retransmissions of the random access retransmission includes: The number of retransmissions is determined according to a retransmission counter.

11. The method according to claim 10, characterized in that The method comprises: Determining that the user equipment performs the random access transmission once; The number of transmissions of the random access transmission is accumulated according to the retransmission counter.

12. The method according to claim 8, characterized in that The step of determining the first transmission power according to the step of raising the power and the number of retransmissions: Obtaining the number of retransmissions of the random access retransmission; Determining a second transmission power of the retransmission access transmission according to the number of retransmissions and the initial transmission power of the random access transmission; A minimum value is taken between the maximum transmission power of the user equipment and the second transmission power as the first transmission power.

13. The method according to claim 1, characterized in that The determining, according to the first information and the boost power step, a first transmission power of the random access transmission includes: Determine, according to the first information, that the random access transmission is an initial transmission, and reset a power boost value of the user equipment; The first transmission power is determined according to the power boost step and the reset power boost value.

14. The method according to claim 13, characterized in that The method further comprises: Reset the retransmission counter to its initial value.

15. The method according to claim 1, characterized in that The first information includes a third field, and determining the first transmission power of the random access transmission according to the first information and the boost power step includes: Determining that the third domain matches the initial transmission identifier, and determining a reset power boost value; determining the first transmission power according to the power increase step and the reset power increase value; or, Determining that the third domain does not match the initial transmission identifier, and determining a target boost power value based on the third domain and the boost power step; The first transmission power is determined according to the target boost power value and the power boost value.

16. The method according to claim 1, characterized in that The first information includes a fourth field, where the fourth field is used to update a transmission beam of the random access transmission, and determining a first transmission power of the random access transmission according to the first information and the boost power step size includes: updating a transmission beam of the random access transmission in response to the fourth field, resetting a power boost value; The first transmission power is determined according to the fourth domain, the reset power increase value and the power increase step.

17. The method according to claim 16, characterized in that The method further comprises: Reset the retransmission counter to its initial value.

18. The method according to claim 16, characterized in that The first information includes a fifth field, where the fifth field is used to indicate that the random access retransmission is the initial transmission, and the reset power boost value includes: The power boost value is reset according to the fifth field, wherein the fifth field matches the initial transmission identifier.

19. The method according to claim 16, characterized in that The first information includes a sixth field, the sixth field is used to indicate the number of retransmissions, and the determining the first transmission power according to the fourth field, the reset power increase value and the increase power step includes: Determine the historical retransmission number of the user equipment before changing the beam; The first transmission power is determined according to the sixth field, the historical number of retransmissions and the power increase step.

20. A transmission power adjustment method, characterized in that: Executed by a network device, the method includes: Sending first information, where the first information is used to trigger the user equipment to initiate random access transmission to the candidate cell to perform timing advance value TA measurement, where the first information includes at least one of random access resources of the candidate cell and first beam information for initiating random access, and the first information is sent to the user equipment by the serving cell of the user equipment; Send configuration information, wherein the configuration information includes a boost power step for random access retransmission, wherein the boost power step is used to instruct the user equipment to determine a first transmission power for the random access transmission based on the first information and the boost power step.

21. The method according to claim 20, characterized in that The first information includes a first field, and the first field is used to indicate, through the first information, whether the random access transmission is an initial transmission or a random access retransmission.

22. The method according to claim 20, characterized in that The first information includes a second field, where the second field is used to indicate whether the random access transmission is the initial transmission or the number of retransmissions of the random access retransmission.

23. The method according to claim 22, characterized in that Determining that the second domain matches an initial transmission identifier, and determining that the random access transmission is the initial transmission; It is determined that the second field does not match the initial transmission identifier, and the number of retransmissions is determined according to the second field.

24. The method according to claim 20, characterized in that The first information includes a fourth field, and the fourth field is used to instruct the user equipment to update the transmission beam of the random access transmission and determine the first transmission power according to the fourth field.

25. A transmission power adjustment method, characterized in that: The method comprises: The network device sends first information to the user equipment, where the first information is used to trigger the user equipment to initiate random access transmission to the candidate cell to perform timing advance value TA measurement, and the first information includes at least one of a random access resource of the candidate cell and first beam information for initiating random access; The network device sends configuration information to the user equipment, where the configuration information includes a power step for performing random access retransmission; The user equipment determines a first transmission power for the random access transmission according to the first information and the boost power step.

26. A user equipment, characterized in that: include: A first transceiver module is configured to receive first information sent by a network device, where the first information is used to trigger a user equipment to initiate a random access transmission to a candidate cell to perform a timing advance value TA measurement, where the first information includes at least one of a random access resource of the candidate cell and first beam information for initiating random access, and the first information is sent by a serving cell of the user equipment to the user equipment; A second transceiver module is configured to receive configuration information sent by a network device, wherein the configuration information includes a power step for performing random access retransmission; A determination module is configured to determine a first transmission power of the random access transmission according to the first information and the boost power step.

27. A network device, characterized in that: include: A first transceiver module is configured to send first information, where the first information is used to trigger the user equipment to initiate random access transmission to the candidate cell to measure the timing advance value TA, where the first information includes at least one of the random access resource of the candidate cell and the first beam information for initiating random access, and the first information is sent by the serving cell of the user equipment to the user equipment; The second transceiver module is configured to send configuration information, wherein the configuration information includes a power boost step for random access retransmission, and the power boost step is used to instruct the user equipment to determine a first transmission power for the random access transmission based on the first information and the power boost step.

28. A terminal, characterized in that: include: one or more processors; The terminal is used to execute the transmission power adjustment method according to any one of claims 1-19.

29. A network device, characterized in that: include: one or more processors; Wherein, the access network device is used to execute the transmission power adjustment method described in any one of claims 20-22.

30. A communication system, characterized in that: It comprises a terminal and a network device, wherein the terminal is configured to implement the transmission power adjustment method according to any one of claims 1 to 19, and the network device is configured to implement the transmission power adjustment method according to any one of claims 20 to 22.

31. A storage medium storing instructions, characterized in that: When the instruction is executed on a communication device, the communication device is enabled to perform the transmission power adjustment method according to any one of claims 1 to 19 or claims 20 to 22.

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