Power ramp counter counting method and apparatus for prach repeated transmission, and user equipment

Abstract

The present application relates to a power ramp counter counting method and apparatus for PRACH repeated transmission, and user equipment. The method comprises: in response to the transmission state of physical random access channel (PRACH) repeated transmission being not transmitted or transmitted at reduced power, controlling a power ramp counter to stop counting.

Description

Method, device and user equipment for counting power climbing counter of PRACH repeated transmission

[0001] Related applications

[0002] This application claims priority to Chinese patent application number 2024101813826, filed on February 18, 2024, entitled “Power climb counter counting method, device and user equipment for PRACH repeated transmission,” the entire text of which is hereby incorporated by reference. Technical Field

[0003] The present application relates to the field of communication technology, and in particular to a method, device, and user equipment for counting a power climb counter for repeated PRACH transmission. Background Art

[0004] When a terminal establishes a communication connection with a base station, it needs to send a Radio Resource Control (RRC) message to the base station through a Physical Random Access Channel (PRACH).

[0005] Typically, to ensure that the PRACH can transmit data sent by the terminal completely to the base station, a power ramping mechanism can be used to increase the PRACH transmission power. However, conventional technologies lack a method for controlling the PRACH transmission power in scenarios where PRACH transmission is repeated.

[0006] Summary of the Invention

[0007] The embodiments of the present application provide a method, apparatus, and user equipment for counting a power climb counter for PRACH repeated transmission.

[0008] In a first aspect, the present application provides a method, comprising:

[0009] In response to the transmission state of the repeated transmission of the physical random access channel PRACH being no transmission or reduced power transmission, the power climbing counter is controlled to stop counting.

[0010] In one embodiment, controlling the power climbing counter to stop counting includes:

[0011] The power climbing counter is controlled to stop counting according to a preset power climbing stop mechanism.

[0012] In one embodiment, the power ramp-up stop mechanism includes any one of the following:

[0013] Layer 1 notifies higher layers to stop counting the power ramp-up counter; and

[0014] Layer 1 determines whether to notify the higher layer to stop counting the power ramp-up counter.

[0015] In one embodiment, the PRACH repeated transmission corresponds to multiple PRACH opportunities, and the transmission state of the physical random access channel PRACH repeated transmission is non-transmission or reduced power transmission, including:

[0016] The transmission status of each of the PRACH opportunities is no transmission or reduced power transmission.

[0017] In one embodiment, the PRACH repeated transmission corresponds to multiple PRACH opportunities; and the transmission state of the physical random access channel PRACH repeated transmission is non-transmission or reduced power transmission, including:

[0018] At least one of the PRACH opportunities satisfies a transmission state of no transmission or reduced power transmission.

[0019] In one embodiment, the PRACH repeated transmission corresponds to multiple PRACH opportunities; and the transmission state of the physical random access channel PRACH repeated transmission is non-transmission or reduced power transmission, including:

[0020] There are a first number of PRACH opportunities satisfying the transmission state of no transmission or reduced power transmission.

[0021] In one embodiment, the existence of a first number of PRACH opportunities satisfying a transmission state of no transmission or reduced power transmission includes:

[0022] The first number is less than or equal to a preset first threshold; the first threshold is equal to the number of the PRACH opportunities.

[0023] In one of the embodiments, the first number is predefined by the communication system; or preconfigured by the higher layer; or indicated by the higher layer; or configured by the higher layer.

[0024] In one of the embodiments, the first threshold is predefined by the communication system; or preconfigured by the higher layer; or indicated by the higher layer; or configured by the higher layer.

[0025] In one embodiment, the first number is a positive integer obtained by multiplying the first threshold by a first ratio value and rounding the result; the first ratio value is predefined by the communication system; or preconfigured by the high layer; or indicated by the high layer; or configured by the high layer.

[0026] In one embodiment, the first ratio is 20%, 30%, or 50%.

[0027] In a second aspect, the present application further provides a power climbing counter counting device for PRACH repeated transmission, the device comprising:

[0028] The control module is configured to control the power climbing counter to stop counting in response to the transmission state of the repeated transmission of the physical random access channel PRACH being no transmission or reduced power transmission.

[0029] In a third aspect, the present application further provides a user equipment, including: a processor;

[0030] The processor is configured to control the power climbing counter to stop counting in response to the transmission state of the repeated transmission of the physical random access channel PRACH being no transmission or reduced power transmission.

[0031] In a fourth aspect, an embodiment of the present application further provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the power climbing counter counting of the PRACH repeated transmission provided in an embodiment of the present application.

[0032] In a fifth aspect, the present application also provides a computer program product, including a computer program, which, when executed by a processor, implements the power climb counter counting of the PRACH repeated transmission provided in the embodiment of the present application.

[0033] The details of one or more embodiments of the present application are set forth in the accompanying drawings and the description below. Other features, objects, and advantages of the present application will become apparent from the description, drawings, and claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the conventional technology, the following briefly introduces the drawings required for use in the embodiments or the conventional technology descriptions. Obviously, the drawings described below are merely embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the disclosed drawings without any creative work.

[0035] FIG1 is a diagram showing an application environment of a method for counting a power climbing counter for repeated PRACH transmissions according to an embodiment of the present application.

[0036] FIG2 is a flow chart of a method for counting a power ramp counter for PRACH repeated transmissions according to an embodiment of the present application.

[0037] FIG3 is a schematic diagram of a PRACH opportunity in which the transmission state is not transmitted in one embodiment of the present application.

[0038] FIG4 is a schematic diagram of a PRACH opportunity when the transmission state is reduced power transmission in one embodiment of the present application.

[0039] FIG5 is a schematic diagram of a PRACH opportunity whose transmission state is not transmitted in another embodiment of the present application.

[0040] FIG6 is a schematic diagram of a PRACH timing when the transmission state is reduced power transmission in another embodiment of the present application.

[0041] FIG7 is a schematic diagram of a PRACH opportunity in which the transmission state is not transmitted in another embodiment of the present application.

[0042] FIG8 is a schematic diagram of a PRACH timing when the transmission state is reduced power transmission in another embodiment of the present application.

[0043] FIG9 is a structural block diagram of a power climbing counter counting device for PRACH repeated transmission in one embodiment of the present application.

[0044] FIG10 is a structural block diagram of a power climbing counter counting device for PRACH repeated transmission in another embodiment of the present application.

[0045] FIG11 is a diagram showing the internal structure of a user device in one embodiment of the present application. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0047] FIG1 is a schematic diagram of an application scenario of a power climbing counter counting for PRACH repeated transmission provided in an embodiment of the present application. As shown in FIG1 , in this scenario, there is a user equipment 100 and an access network device 200. Data is transmitted between the user equipment 100 and the access network device 200 through a network. The access network device 200 may be a base station (Base Transceiver Station, BTS) in Global System of Mobile communication (GSM) or Code Division Multiple Access (CDMA), or a base station (NodeB, NB) in Wideband Code Division Multiple Access (WCDMA), or an evolved base station (eNB or eNodeB) in LTE, or a relay station or access point, or a base station in a 5G network, etc., and is not limited here.

[0048] User equipment 100 may be a wireless terminal, which may be a device that provides voice and / or other service data connectivity to a user, or a handheld device with wireless connectivity, or other processing device connected to a wireless modem. A wireless terminal may communicate with one or more core networks via a Radio Access Network (RAN). A wireless terminal may be a mobile terminal, such as a mobile phone (or "cellular" phone) or a computer with a mobile terminal. For example, a portable, pocket-sized, handheld, computer-embedded, or vehicle-mounted mobile device may exchange voice and / or data with a radio access network. A wireless terminal may also be referred to as a system, subscriber unit, subscriber station, mobile station, mobile, remote station, remote terminal, access terminal, user terminal, user agent, user device, or user equipment, without limitation herein.

[0049] In conventional technology, when a user equipment establishes a communication connection with a base station, it is necessary to send a Radio Resource Control (RRC) message to the base station via a Physical Random Access Channel (PRACH). To avoid the problem that the user equipment cannot establish a connection with the base station due to low PRACH transmission power, a power ramp-up mechanism can be used to increase the PRACH transmission power. The power ramp-up mechanism controls the increase in power by controlling the count of a power ramp-up counter. However, due to a series of reasons, the user equipment may not transmit the PRACH within a transmission opportunity or transmit the PRACH at a reduced power. To avoid excessive power increase in the above-mentioned situations, when the user equipment does not transmit the PRACH within a transmission opportunity or transmits the PRACH at a reduced power, the higher layer can be notified by Layer 1 in the radio access protocol system of Long Term Evolution (LTE) to suspend the counting of the corresponding power ramp-up counter to stop the power increase; or the user equipment determines whether Layer 1 notifies the higher layer to suspend the corresponding power ramp-up counter to stop the power increase.

[0050] However, conventional technologies only consider single PRACH transmissions and lack a corresponding power ramp counter control method for repeated PRACH transmissions. Furthermore, in PRACH repeated transmission scenarios, since PRACH transmissions occupy more time domain resources, it is more likely that PRACH will not be transmitted or will be transmitted at reduced power, thereby pausing the corresponding power ramp counter. This causes repeated PRACH transmissions to maintain the same power for extended periods, leading to user equipment being unable to access the cell or experiencing excessive latency. Consequently, conventional technologies lack a method for controlling PRACH transmission power in repeated PRACH transmission scenarios.

[0051] Based on the above-mentioned traditional technology, an embodiment of the present application provides a power climbing counter counting method for PRACH repeated transmission. The user equipment controls the power climbing counter to stop counting in response to the transmission state of the physical random access channel PRACH repeated transmission being no transmission or reduced power transmission. The power climbing counter can be stopped from counting when the transmission state of the PRACH repeated transmission is no transmission or reduced power transmission. Since different count values ​​of the power climbing counter correspond to different transmission powers, and the count value of the power climbing counter can be controlled by controlling the counting state of the power climbing counter, the transmission power of the PRACH repeated transmission can be controlled by controlling the count of the power climbing counter, thereby realizing the control of the PRACH transmission power in the PRACH repeated transmission scenario; in addition, since the power climbing counter can be controlled to stop counting, the transmission power of the PRACH repeated transmission can be avoided from excessively climbing.

[0052] It should be noted that the beneficial effects or technical problems solved by the embodiments of the present application are not limited to this one, but may also include other implicit or related problems. For details, please refer to the description of the following embodiments.

[0053] In one embodiment, as shown in FIG2 , a method for counting a power climbing counter for repeated PRACH transmission is provided. The method is described by taking the user equipment in FIG1 as an example, including the following steps:

[0054] S201: In response to a transmission state of repeated transmission of a physical random access channel PRACH being no transmission or reduced-power transmission, control a power ramp-up counter to stop counting.

[0055] The Physical Random Access Channel (PRACH) is a key component of the physical layer in the LTE wireless access protocol system. It is primarily used to implement the random access process for user equipment (UE). The PRACH provides UEs with a random access opportunity, enabling them to establish a connection with a base station. It is understood that due to the mobility of UEs, the distance between UEs and base stations is uncertain. Therefore, when UEs send messages to the base station, uplink synchronization management is required in real time. The UEs send preambles to the base station via the PRACH to achieve uplink synchronization and establish time and frequency synchronization between the two. This allows them to request resources from the base station for service transmission. During repeated PRACH transmissions, different transmission states may exist, such as successful transmission and failed transmission. Successful transmission can include repeated PRACH transmissions at reduced power and repeated PRACH transmissions at the power level corresponding to the repeated PRACH transmissions. Failed transmission can include untransmitted transmissions. It should be noted that the user equipment sends the preamble code to the base station through PRACH. Failure to transmit means that the preamble code is not successfully sent to the base station. Reduced power transmission means that the user equipment sends the preamble code at a transmission power lower than that corresponding to the repeated transmission of this group of PRACH.

[0056] It should be noted that in PRACH repeated transmission, the transmission power in PRACH repeated transmission can be controlled by controlling the power climbing counter count through a preset power climbing mechanism. However, if the transmission state is no transmission or reduced power transmission, there may be a problem of excessive climbing of the transmission power of PRACH repeated transmission. Therefore, it is necessary to control the power climbing counter in PRACH repeated transmission to stop counting.

[0057] In this embodiment, the user equipment can determine the transmission status of the PRACH repeated transmission based on whether the response message of the base station is received, the duration of the received response message, and the integrity and correctness of the received response message, thereby controlling the power climbing counter to stop counting according to the transmission status. For example, if the transmission status of the PRACH repeated transmission is not transmitted, the power climbing counter can be controlled to stop counting; or, if the transmission status of the PRACH repeated transmission is reduced power transmission, the power climbing counter can be controlled to stop counting.

[0058] In the above-mentioned method for counting the power climbing counter of PRACH repeated transmission, the user equipment controls the power climbing counter to stop counting in response to the transmission state of the physical random access channel PRACH repeated transmission being no transmission or reduced power transmission. The power climbing counter can be stopped when the transmission state of the PRACH repeated transmission is no transmission or reduced power transmission. Since different count values ​​of the power climbing counter correspond to different transmission powers, and the count value of the power climbing counter can be controlled by controlling the counting state of the power climbing counter, the transmission power of the PRACH repeated transmission can be controlled by controlling the count of the power climbing counter, thereby realizing the control of the PRACH transmission power in the PRACH repeated transmission scenario; in addition, since the power climbing counter can be controlled to stop counting, the transmission power of the PRACH repeated transmission can be avoided from excessively climbing.

[0059] In the scenario described above where the power ramp counter is controlled to stop counting, various different stop counting mechanisms may be employed. In one embodiment, "controlling the power ramp counter to stop counting" may include: controlling the power ramp counter to stop counting according to a preset power ramp stop mechanism. In one embodiment, the power ramp stop mechanism includes any of the following: layer 1 notifying a higher layer to stop counting the power ramp counter; and layer 1 determining whether to notify the higher layer to stop counting the power ramp counter.

[0060] The power climbing stop mechanism refers to a control mechanism for a power climbing counter in PRACH repeated transmission, and can control the climbing counter to stop counting according to the power climbing stop mechanism when the transmission state of the PRACH repeated transmission meets a preset condition.

[0061] It should be noted that the radio access protocol system of Long Term Evolution (LTE) includes Layer 1: the physical layer, Layer 2: the media access control layer (MAC), the radio link control layer (PLC), the packet data convergence protocol layer (POCP), and Layer 3: the radio resource control layer (RRC). In this embodiment, when the transmission state of PRACH repeated transmission is non-transmission or reduced-power transmission, Layer 1 can notify a higher layer to suspend counting of a corresponding power ramp-up counter to stop power increase; alternatively, the user equipment determines whether Layer 1 notifies a higher layer to suspend counting of a corresponding power ramp-up counter to stop power increase.

[0062] As an optional implementation manner, layer 1 may determine whether to notify a higher layer to stop counting the power climbing counter according to at least one of the following conditions:

[0063] The user equipment cannot perform power ramping during the next set of PRACH retransmissions; or, the user equipment determines that during the next set of PRACH retransmissions, it can perform transmission at the normal transmission power allocated by the network; or, the user equipment determines that during the next PRACH retransmission, it can perform PRACH transmission on all PRACH opportunities; or, according to the network side configuration, the user equipment needs to stop counting the power ramping counter when the transmission state is no transmission or reduced power transmission.

[0064] In this embodiment, by controlling the power climbing counter to stop counting according to a preset power climbing stop mechanism, when the transmission state of the PRACH repeated transmission is no transmission or reduced power transmission, the power climbing counter can be stopped by notifying the higher layer through layer 1, or the power climbing counter can be controlled to stop counting by determining whether to notify the higher layer to stop counting. Since the power climbing counter can be stopped in time, the problem of excessive increase in the transmission power of the PRACH repeated transmission caused by the power climbing counter continuing to count can be avoided.

[0065] It should be noted that to improve the success rate of establishing a connection between a user equipment and a base station, multiple PRACH opportunities can be allocated in a set of PRACH repetition transmissions. PRACH repetition transmissions can be performed over multiple transmission opportunities. Therefore, the transmission state of the PRACH repetition transmissions can be determined based on the transmission state of each PRACH opportunity in the set of PRACH repetition transmissions. The following describes in detail the power stop ramp mechanism corresponding to different transmission states of each PRACH opportunity in a set of PRACH repetition transmissions under three different circumstances.

[0066] The first one: In one embodiment, in response to the transmission status of repeated transmission of the physical random access channel PRACH being no transmission or reduced-power transmission, the power climbing counter is controlled to stop counting, including: if the transmission status of each PRACH opportunity is no transmission or reduced-power transmission, then layer 1 notifies the higher layer to stop counting the power climbing counter or layer 1 determines whether to notify the higher layer to stop counting the power climbing counter.

[0067] It should be noted that the network side can pre-allocate time domain and frequency domain resources to PRACH repeated transmission based on the performance of the user equipment. Then, in the PRACH repeated transmission, multiple PRACH opportunities can be corresponding to the time domain and frequency domain resources. In this embodiment, the power climbing counter can be controlled according to the transmission status of the PRACH transmission on each PRACH opportunity. In actual PRACH transmission, there may be situations where some PRACH opportunities fail to transmit due to reasons such as too low PRACH transmission power or network delay. There may also be situations where the PRACH opportunity is successfully transmitted at a transmission power lower than the transmission power allocated by the network. Therefore, in order to avoid stopping the power climbing counter counting when there is no transmission or reduced power transmission on a certain PRACH opportunity, resulting in the PRACH repeated transmission being unable to increase the transmission power for a long time, thereby causing the user equipment to be unable to establish a connection with the base station, the power climbing counter can be controlled to stop counting when the transmission status of each PRACH opportunity is all no transmission or all reduced power transmission.

[0068] In this embodiment, if the user equipment detects that the transmission status of each PRACH opportunity is not transmitted or is all reduced-power transmission after a group of PRACH transmissions is completed, the user equipment can control layer 1 to notify the upper layer to stop counting the power climbing counter or control layer 1 to determine whether to notify the upper layer to stop counting the power climbing counter.

[0069] For example, as shown in FIG3 , if a group of PRACH repeated transmissions includes 8 PRACH opportunities, and all 8 PRACH opportunities are not transmitted, the power climbing counter can be controlled to stop counting, that is, the control layer 1 notifies the upper layer to stop the power climbing counter counting or the control layer 1 determines whether to notify the upper layer to stop the power climbing counter counting.

[0070] For example, as shown in FIG4 , if a group of PRACH repeated transmissions includes 8 PRACH opportunities, and all 8 PRACH opportunities are reduced-power transmissions, the power climbing counter can be controlled to stop counting, that is, the control layer 1 notifies the upper layer to stop the power climbing counter counting or the control layer 1 determines whether to notify the upper layer to stop the power climbing counter counting.

[0071] In this embodiment, when the transmission status of each PRACH opportunity is non-transmission or reduced power transmission, the control layer 1 can notify the upper layer to stop counting the power climbing counter or the control layer 1 can determine whether to notify the upper layer to stop counting the power climbing counter, thereby avoiding the situation where there is no transmission or reduced power transmission on a certain PRACH opportunity, stopping the power climbing counter counting, resulting in repeated PRACH transmission unable to increase the transmission power for a long time, thereby causing the user equipment to be unable to establish a connection with the base station.

[0072] The second type: In one embodiment, in response to the transmission status of repeated transmission of the physical random access channel PRACH being no transmission or reduced power transmission, the power climbing counter is controlled, including: if there is at least one PRACH opportunity in the multiple PRACH opportunities whose transmission status is no transmission or reduced power transmission, then layer 1 notifies the higher layer to stop counting the power climbing counter or layer 1 determines whether to notify the higher layer to stop counting the power climbing counter.

[0073] It should be noted that if there are multiple situations that may cause PRACH transmission failure during repeated PRACH transmission, therefore, when there is at least one PRACH opportunity in which the transmission state is not transmitted or reduced power transmission during repeated PRACH transmission, the power climbing counter can be controlled to stop counting to avoid excessive increase in transmission power.

[0074] In this embodiment, after a group of PRACH transmissions is completed, the user equipment detects that there is at least one PRACH opportunity that is not transmitted or is transmitting with reduced power, and can control layer 1 to notify the higher layer to stop counting the power climbing counter, or layer 1 can determine whether to notify the higher layer to stop counting the power climbing counter.

[0075] For example, as shown in FIG5 , if a group of PRACH repeated transmissions includes 8 PRACH opportunities, where the transmission status of PRACH opportunity 3 and PRACH opportunity 4 is not transmitted, the control layer 1 notifies the higher layer to stop counting the power climbing counter or the control layer 1 determines whether to notify the higher layer to stop counting the power climbing counter.

[0076] For example, as shown in FIG6 , if a group of PRACH repeated transmissions includes 8 PRACH opportunities, where the transmission status of PRACH opportunity 3 and PRACH opportunity 4 is reduced power transmission, the control layer 1 notifies the higher layer to stop the power climbing counter counting or the control layer 1 determines whether to notify the higher layer to stop the power climbing counter counting.

[0077] In this embodiment, when there is at least one PRACH opportunity in a plurality of PRACH opportunities whose transmission state is non-transmission or reduced power transmission, the control layer 1 can notify the upper layer to stop counting the power climbing counter or the control layer 1 can determine whether to notify the upper layer to stop counting the power climbing counter, so that the power climbing count can be stopped in time to avoid excessive increase in transmission power during repeated PRACH transmission.

[0078] The third type: In one embodiment, in response to the transmission status of repeated transmission of the physical random access channel PRACH being no transmission or reduced power transmission, the power climbing counter is controlled to stop counting, including: if there are a first number of PRACH opportunities in which the transmission status is no transmission or reduced power transmission among multiple PRACH opportunities, then layer 1 notifies the upper layer to stop counting the power climbing counter or layer 1 determines whether to notify the upper layer to stop counting the power climbing counter.

[0079] The first number refers to the number of PRACH opportunities in a group of PRACH repeated transmissions in which the transmission state is not transmitted or reduced power transmission. Optionally, the first number can be a number predefined by the communication system; or it can be preconfigured by a higher layer in LTE, such as preconfigured by the RRC layer; or it can be an indication in a higher layer in LTE, or configured by a higher layer in LTE in each group of PRACH repeated transmissions.

[0080] In this embodiment, after a group of PRACH repeated transmissions ends, if the user equipment detects that the number of PRACH opportunities with no transmission or reduced power transmission meets a first number, the user equipment may control the power ramp-up counter to stop counting.

[0081] As an optional implementation, if the first number is less than or equal to a preset first threshold, layer 1 notifies the upper layer to stop the power climb counter counting or layer 1 determines whether to notify the upper layer to stop the power climb counter counting; the first threshold is equal to the number of PRACH opportunities.

[0082] The first threshold is the number of PRACH opportunities corresponding to a set of PRACH repeated transmissions, determined based on information such as user equipment performance and communication network configuration. Optionally, the first threshold may be a number predefined by the communication system; or may be preconfigured by a higher layer in LTE, such as preconfigured by the RRC layer; or may be an indication in a higher layer in LTE, or may be configured by a higher layer in LTE for each set of PRACH repeated transmissions.

[0083] The first number may also be a positive integer obtained by rounding the first threshold multiplied by the first ratio value, wherein the first ratio value may be a number predefined by the communication system; or, it may be a high-level preconfiguration in LTE, such as pre-configuration of the RRC layer; or, it may be an indication in high-level LTE, or configured by high-level layers in LTE in each group of PRACH repeated transmissions.

[0084] For example, if the number of PRACH opportunities corresponding to a set of PRACH retransmissions, i.e., the first threshold is N, N∈{1, 2, ...N}, and the first number is M, then when M≤N, the user equipment may notify the higher layer to stop the power climb counter counting, or layer 1 may determine whether to notify the higher layer to stop the power climb counter counting. The first ratio value may be 20%, 30%, 50%, or n, and the value of M may be: M=|{20%, 30%, 50%, n%}*N| The lower integer or upper integer.

[0085] For example, as shown in FIG7 , if a group of PRACH repeated transmissions includes 8 PRACH opportunities, where the transmission status of PRACH opportunity 3, PRACH opportunity 4, PRACH opportunity 5, and PRACH opportunity 6 are all not transmitted, the control layer 1 notifies the higher layer to stop counting the power climbing counter or the control layer 1 determines whether to notify the higher layer to stop counting the power climbing counter.

[0086] For example, as shown in FIG8 , if a group of PRACH repeated transmissions includes 8 PRACH opportunities, where the transmission status of PRACH opportunity 3, PRACH opportunity 4, PRACH opportunity 5, and PRACH opportunity 6 are all reduced-power transmission, the control layer 1 notifies the higher layer to stop counting the power climbing counter or the control layer 1 determines whether to notify the higher layer to stop counting the power climbing counter.

[0087] In this embodiment, when there are a first number of PRACH opportunities in which the transmission status is non-transmission or reduced-power transmission among multiple PRACH opportunities, the control layer 1 can notify the upper layer to stop counting the power climbing counter or the control layer 1 can determine whether to notify the upper layer to stop counting the power climbing counter, so that the power climbing count can be stopped in time to avoid excessive increase in transmission power during repeated PRACH transmission.

[0088] To facilitate understanding by those skilled in the art, the power climbing counter counting method for PRACH repeated transmission provided by the present application is described in detail below. The method may include:

[0089] S1, determining that the transmission state of repeated transmission of a physical random access channel PRACH is no transmission or reduced power transmission.

[0090] S2, controlling the power climbing counter to stop counting according to a preset power climbing stop mechanism.

[0091] S3. If the transmission status of each PRACH opportunity is no transmission or reduced power transmission, layer 1 notifies the higher layer to stop the power climbing counter or layer 1 determines whether to notify the higher layer to stop the power climbing counter.

[0092] S4. If there is at least one PRACH opportunity in the plurality of PRACH opportunities with a transmission state of no transmission or reduced power transmission, layer 1 notifies higher layers to stop the power climbing counter or layer 1 determines whether to notify higher layers to stop the power climbing counter.

[0093] S5. If there are a first number of PRACH opportunities in a plurality of PRACH opportunities whose transmission status is no transmission or reduced power transmission, and if the first number is less than or equal to a preset first threshold, layer 1 notifies the upper layer to stop counting the power climbing counter or layer 1 determines whether to notify the upper layer to stop counting the power climbing counter; wherein the first threshold is predefined by the communication system; or preconfigured by the upper layer; or indicated by the upper layer; or configured by the upper layer, the first number is a positive integer rounded after multiplying the first threshold by a first ratio value, and the first ratio value is predefined by the communication system; or preconfigured by the upper layer; or indicated by the upper layer; or configured by the upper layer; or the first number is predefined by the communication system; or preconfigured by the upper layer; or indicated by the upper layer; or configured by the upper layer.

[0094] It should be noted that for the descriptions in S1-S5 above, reference can be made to the relevant descriptions in the above embodiments, and the effects are similar, so this embodiment will not be repeated here.

[0095] It should be understood that, although the steps in the flowcharts of the above embodiments are shown in sequence as indicated by the arrows, these steps are not necessarily performed in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and these steps can be performed in other orders. Moreover, at least a portion of the steps in the flowcharts of the above embodiments may include multiple steps or multiple stages, and these steps or stages are not necessarily performed at the same time, but can be performed at different times. The execution order of these steps or stages is not necessarily to be performed in sequence, but can be performed in turn or alternately with other steps or at least a portion of steps or stages in other steps.

[0096] In one embodiment, as shown in FIG9 , a power climbing counter counting device for PRACH repeated transmission is provided, comprising: a control module 11, wherein:

[0097] The control module 11 is configured to control the power ramp-up counter to stop counting in response to the transmission status of repeated transmission of the physical random access channel PRACH being no transmission or reduced power transmission.

[0098] The power climbing counter counting device for PRACH repeated transmission provided in this embodiment can execute the above method embodiment. Its implementation principle and technical effects are similar and will not be described in detail here.

[0099] In one embodiment, as shown in FIG10 , the control module 11 includes a control unit 111 , wherein:

[0100] The control unit 111 is configured to control the power climbing counter to stop counting according to a preset power climbing stop mechanism.

[0101] In one embodiment, the power ramp-up stop mechanism includes any one of the following: layer 1 notifies a higher layer to stop counting a power ramp-up counter; layer 1 determines whether to notify a higher layer to stop counting a power ramp-up counter.

[0102] The power climbing counter counting device for PRACH repeated transmission provided in this embodiment can execute the above method embodiment. Its implementation principle and technical effects are similar and will not be described in detail here.

[0103] In one embodiment, the PRACH repeated transmission corresponds to multiple PRACH opportunities. Referring to FIG. 10 , the control module 11 includes a first stopping unit 112 , wherein:

[0104] The first stopping unit 112 is configured to notify the higher layer to stop the power climbing counter if the transmission status of each PRACH opportunity is no transmission or reduced power transmission, or determine whether to notify the higher layer to stop the power climbing counter.

[0105] The power climbing counter counting device for PRACH repeated transmission provided in this embodiment can execute the above method embodiment. Its implementation principle and technical effects are similar and will not be described in detail here.

[0106] In one embodiment, the PRACH repeated transmission corresponds to multiple PRACH opportunities. Referring to FIG. 10 , the control module 11 includes a second stopping unit 113 , wherein:

[0107] The second stopping unit 113 is configured to, if there is at least one PRACH opportunity in the multiple PRACH opportunities with a transmission state of no transmission or reduced power transmission, cause layer 1 to notify higher layers to stop counting the power climbing counter, or layer 1 to determine whether to notify higher layers to stop counting the power climbing counter.

[0108] The power climbing counter counting device for PRACH repeated transmission provided in this embodiment can execute the above method embodiment. Its implementation principle and technical effects are similar and will not be described in detail here.

[0109] In one embodiment, the PRACH repeated transmission corresponds to multiple PRACH opportunities. Referring to FIG. 10 , the control module 11 includes a third stopping unit 114 , wherein:

[0110] The third stopping unit 114 is configured to, if there are a first number of PRACH opportunities in which the transmission status is no transmission or reduced power transmission among the multiple PRACH opportunities, notify the higher layer 1 to stop counting the power climbing counter, or determine whether to notify the higher layer to stop counting the power climbing counter.

[0111] The power climbing counter counting device for PRACH repeated transmission provided in this embodiment can execute the above method embodiment. Its implementation principle and technical effects are similar and will not be described in detail here.

[0112] In one embodiment, please continue to refer to Figure 10, the third stop unit 114 is specifically used to: if the first number is less than or equal to a preset first threshold, then layer 1 notifies the upper layer to stop the power climb counter counting or layer 1 determines whether to notify the upper layer to stop the power climb counter counting; the first threshold is equal to the number of PRACH opportunities.

[0113] Optionally, the first quantity is predefined by the communication system; or preconfigured by a higher layer; or indicated by a higher layer; or configured by a higher layer.

[0114] Optionally, the first number is a positive integer obtained by rounding the first threshold value multiplied by the first ratio value.

[0115] Optionally, the first ratio value is predefined by the communication system; or preconfigured by a higher layer; or indicated by a higher layer; or configured by a higher layer.

[0116] Optionally, the first threshold is predefined by the communication system; or preconfigured by a higher layer; or indicated by a higher layer; or configured by a higher layer.

[0117] The power climbing counter counting device for PRACH repeated transmission provided in this embodiment can execute the above method embodiment. Its implementation principle and technical effects are similar and will not be described in detail here.

[0118] For specific definitions of the PRACH repeated transmission power climbing counter counting device, please refer to the above-mentioned definitions of the PRACH repeated transmission power climbing counter counting method, and will not be repeated here. The various modules in the above-mentioned PRACH repeated transmission power climbing counter counting device can be implemented in whole or in part through software, hardware, or a combination thereof. Each of the above-mentioned modules can be embedded in or independent of the processor in the computer device in hardware form, or can be stored in the memory of the computer device in software form, so that the processor can call and execute the corresponding operations of each of the above modules.

[0119] In one embodiment, a communication device is provided, see Figure 11. Figure 11 is a schematic diagram of the structure of the user equipment provided in an embodiment of the present invention. The user equipment 900 shown in Figure 11 includes: at least one processor 901, a memory 902, at least one network interface 904 and a user interface 903. The various components in the user equipment 900 are coupled together through a bus system 905. It can be understood that the bus system 905 is used to achieve connection and communication between these components. In addition to the data bus, the bus system 905 also includes a power bus, a control bus and a status signal bus. However, for the sake of clarity, various buses are labeled as bus systems 905 in Figure 11. In addition, in an embodiment of the present invention, a transceiver 906 is also included. The transceiver can be multiple components, that is, including a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium.

[0120] The user interface 903 may include a display, a keyboard, or a pointing device (eg, a mouse, a trackball, a touchpad, or a touch screen).

[0121] It is understood that the memory 902 in the embodiment of the present invention can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DRRAM). The memory 902 of the systems and methods described in the embodiments of the present invention is intended to include, but is not limited to, these and any other suitable types of memory.

[0122] In some embodiments, the memory 902 stores the following elements, executable modules or data structures, or a subset thereof, or an extended set thereof: an operating system 9021 and application programs 9022 .

[0123] The operating system 9021 includes various system programs, such as a framework layer, a core library layer, and a driver layer, for implementing various basic services and handling hardware-based tasks. Application programs 9022 include various application programs, such as a media player and a browser, for implementing various application services. Programs implementing the methods of the embodiments of the present invention may be included in application programs 9022.

[0124] In an embodiment of the present invention, by calling the program or instructions stored in the memory 902, specifically, the program or instructions stored in the application 9022, the processor is used to control the power climbing counter to stop counting in response to the transmission status of the repeated transmission of the physical random access channel PRACH being no transmission or reduced power transmission.

[0125] In one embodiment, the processor is configured to control the power climbing counter to stop counting according to a preset power climbing stop mechanism.

[0126] In one embodiment, the power ramp-up stop mechanism includes any one of the following: layer 1 notifies a higher layer to stop counting a power ramp-up counter; layer 1 determines whether to notify a higher layer to stop counting a power ramp-up counter.

[0127] In one embodiment, the processor is configured to, if the transmission status of each PRACH opportunity is no transmission or reduced power transmission, have layer 1 notify higher layers to stop counting the power climbing counter, or layer 1 determine whether to notify higher layers to stop counting the power climbing counter.

[0128] In one embodiment, the processor is configured to control a counting state of a power ramp counter according to a communication protocol between the user equipment and the base station if there is at least one first transmission opportunity in a group of physical random access channel transmissions with preamble repetitions.

[0129] In one embodiment, the processor is configured to, if there is at least one PRACH opportunity in the plurality of PRACH opportunities whose transmission state is non-transmission or reduced-power transmission, cause layer 1 to notify a higher layer to stop counting the power climbing counter, or layer 1 to determine whether to notify a higher layer to stop counting the power climbing counter.

[0130] In one embodiment, the processor is configured to, if a first number of PRACH opportunities exist in a plurality of PRACH opportunities in which the transmission state is non-transmission or reduced-power transmission, cause layer 1 to notify a higher layer to stop counting the power climbing counter, or layer 1 to determine whether to notify a higher layer to stop counting the power climbing counter.

[0131] In one embodiment, the processor is configured to, if the first number is less than or equal to a preset first threshold, have layer 1 notify a higher layer to stop counting the power climb counter, or layer 1 determine whether to notify a higher layer to stop counting the power climb counter; the first threshold is equal to the number of PRACH opportunities.

[0132] Optionally, the first quantity is predefined by the communication system; or preconfigured by a higher layer; or indicated by a higher layer; or configured by a higher layer.

[0133] Optionally, the first number is a positive integer obtained by rounding the first threshold value multiplied by the first ratio value.

[0134] Optionally, the first ratio value is predefined by the communication system; or preconfigured by a higher layer; or indicated by a higher layer; or configured by a higher layer.

[0135] Optionally, the first threshold is predefined by the communication system; or preconfigured by a higher layer; or indicated by a higher layer; or configured by a higher layer.

[0136] Some or all of the methods disclosed in the above embodiments of the present invention may also be applied to the processor 901, or implemented by the processor 901, or implemented by the processor 901 in conjunction with other components (e.g., a transceiver). The processor 901 may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method may be performed by hardware integrated logic circuits in the processor 901 or by software instructions. The processor 901 may be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic device, discrete gate or transistor logic device, or discrete hardware component. The methods, steps, and logic block diagrams disclosed in the embodiments of the present invention may be implemented or executed. The general-purpose processor may be a microprocessor or any conventional processor. The steps of the methods disclosed in conjunction with the embodiments of the present invention may be directly implemented and executed by a hardware decoding processor, or by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium well-known in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, etc. The storage medium is located in memory 902, and processor 901 reads information in memory 902 and, in conjunction with its hardware, completes the steps of the above method.

[0137] It is understood that the embodiments described in the embodiments of the present invention can be implemented using hardware, software, firmware, middleware, microcode, or a combination thereof. For hardware implementation, the processing unit can be implemented in one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), general-purpose processors, controllers, microcontrollers, microprocessors, other electronic units for performing the functions of the present application, or a combination thereof.

[0138] For software implementation, the techniques of the embodiments of the present invention can be implemented through modules (e.g., procedures, functions, etc.) that perform the functions of the embodiments of the present invention. The software code can be stored in a memory and executed by the processor 901. The memory can be implemented in the processor 901 or external to the processor 901.

[0139] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the following steps are implemented:

[0140] In response to the transmission state of the repeated transmission of the physical random access channel PRACH being no transmission or reduced power transmission, the power climbing counter is controlled to stop counting.

[0141] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0142] The power climbing counter is controlled to stop counting according to a preset power climbing stop mechanism.

[0143] In one embodiment, the power ramp-up stop mechanism includes any one of the following: layer 1 notifies a higher layer to stop counting a power ramp-up counter; layer 1 determines whether to notify a higher layer to stop counting a power ramp-up counter.

[0144] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0145] If the transmission status of each PRACH opportunity is non-transmission or reduced-power transmission, the layer 1 notifies the higher layer to stop the power climbing counter or the layer 1 determines whether to notify the higher layer to stop the power climbing counter.

[0146] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0147] If there is at least one PRACH opportunity in which the transmission state is non-transmission or reduced-power transmission among the multiple PRACH opportunities, layer 1 notifies the higher layer to stop counting the power climbing counter or layer 1 determines whether to notify the higher layer to stop counting the power climbing counter.

[0148] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0149] If there are a first number of PRACH opportunities in which the transmission status is non-transmission or reduced-power transmission among the multiple PRACH opportunities, layer 1 notifies higher layers to stop counting the power climbing counter or layer 1 determines whether to notify higher layers to stop counting the power climbing counter.

[0150] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0151] If the first number is less than or equal to a preset first threshold, layer 1 notifies the higher layer to stop the power climbing counter or layer 1 determines whether to notify the higher layer to stop the power climbing counter; the first threshold is equal to the number of PRACH opportunities.

[0152] Optionally, the first quantity is predefined by the communication system; or preconfigured by a higher layer; or indicated by a higher layer; or configured by a higher layer.

[0153] Optionally, the first number is a positive integer obtained by rounding the first threshold value multiplied by the first ratio value.

[0154] Optionally, the first ratio value is predefined by the communication system; or preconfigured by a higher layer; or indicated by a higher layer; or configured by a higher layer.

[0155] Optionally, the first threshold is predefined by the communication system; or preconfigured by a higher layer; or indicated by a higher layer; or configured by a higher layer.

[0156] The present application also provides a computer program product comprising instructions, which, when executed on a computer, causes the computer to perform the following steps:

[0157] In response to the transmission state of the repeated transmission of the physical random access channel PRACH being no transmission or reduced power transmission, the power climbing counter is controlled to stop counting.

[0158] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0159] The power climbing counter is controlled to stop counting according to a preset power climbing stop mechanism.

[0160] In one embodiment, the power ramp-up stop mechanism includes any one of the following: layer 1 notifies a higher layer to stop counting a power ramp-up counter; layer 1 determines whether to notify a higher layer to stop counting a power ramp-up counter.

[0161] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0162] If the transmission status of each PRACH opportunity is non-transmission or reduced-power transmission, the layer 1 notifies the higher layer to stop the power climbing counter or the layer 1 determines whether to notify the higher layer to stop the power climbing counter.

[0163] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0164] If there is at least one PRACH opportunity in which the transmission state is non-transmission or reduced-power transmission among the multiple PRACH opportunities, layer 1 notifies the higher layer to stop counting the power climbing counter or layer 1 determines whether to notify the higher layer to stop counting the power climbing counter.

[0165] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0166] If there are a first number of PRACH opportunities in which the transmission status is non-transmission or reduced-power transmission among the multiple PRACH opportunities, layer 1 notifies higher layers to stop counting the power climbing counter or layer 1 determines whether to notify higher layers to stop counting the power climbing counter.

[0167] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0168] If the first number is less than or equal to a preset first threshold, layer 1 notifies the higher layer to stop the power climbing counter or layer 1 determines whether to notify the higher layer to stop the power climbing counter; the first threshold is equal to the number of PRACH opportunities.

[0169] Optionally, the first quantity is predefined by the communication system; or preconfigured by a higher layer; or indicated by a higher layer; or configured by a higher layer.

[0170] Optionally, the first number is a positive integer obtained by rounding the first threshold value multiplied by the first ratio value.

[0171] Optionally, the first ratio value is predefined by the communication system; or preconfigured by a higher layer; or indicated by a higher layer; or configured by a higher layer.

[0172] Optionally, the first threshold is predefined by the communication system; or preconfigured by a higher layer; or indicated by a higher layer; or configured by a higher layer.

[0173] Those skilled in the art will appreciate that all or part of the processes in the above-mentioned embodiment methods can be implemented by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application may include at least one of non-volatile and volatile memory. Non-volatile memory may include read-only memory (ROM), magnetic tape, floppy disk, flash memory or optical memory, etc. Volatile memory may include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM).

[0174] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0175] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A method for counting a power ramp counter for PRACH repeated transmissions, the method comprising: In response to the transmission state of the repeated transmission of the physical random access channel PRACH being no transmission or reduced power transmission, the power climbing counter is controlled to stop counting.

2. The method according to claim 1, wherein Controlling the power climbing counter to stop counting includes: The power climbing counter is controlled to stop counting according to a preset power climbing stop mechanism.

3. The method according to claim 2, wherein the power ramp-up stop mechanism comprises any one of the following: Layer 1 notifies higher layers to stop counting the power ramp-up counter; and Layer 1 determines whether to notify the higher layer to stop counting the power ramp-up counter.

4. The method according to claim 3, wherein: The PRACH repeated transmission corresponds to multiple PRACH opportunities; the transmission state of the physical random access channel PRACH repeated transmission is not transmitted or reduced power transmission, including: The transmission status of each of the PRACH opportunities is no transmission or reduced power transmission.

5. The method according to claim 3, wherein The PRACH repeated transmission corresponds to multiple PRACH opportunities; the transmission state of the physical random access channel PRACH repeated transmission is not transmitted or reduced power transmission, including: At least one of the PRACH opportunities satisfies a transmission state of no transmission or reduced power transmission.

6. The method according to claim 3, wherein: The PRACH repeated transmission corresponds to multiple PRACH opportunities; the transmission state of the physical random access channel PRACH repeated transmission is not transmitted or reduced power transmission, including: There are a first number of PRACH opportunities satisfying the transmission state of no transmission or reduced power transmission.

7. The method according to claim 6, wherein: The existence of the first number of PRACH opportunities meeting the transmission state of non-transmission or reduced-power transmission includes: The first number is less than or equal to a preset first threshold; the first threshold is equal to the number of the PRACH opportunities.

8. The method according to claim 7, wherein: The first number is predefined by the communication system; or preconfigured by the higher layer; or indicated by the higher layer; or configured by the higher layer.

9. The method according to claim 8, wherein The first threshold is predefined by the communication system; or preconfigured by the higher layer; or indicated by the higher layer; or configured by the higher layer.

10. The method according to claim 7, wherein: The first number is a positive integer obtained by multiplying the first threshold by a first ratio value and rounding the result; the first ratio value is predefined by the communication system; or preconfigured by the high layer; or indicated by the high layer; or configured by the high layer.

11. The method according to claim 10, wherein: The first ratio value is 20%, 30%, or 50%.

12. A device for counting a power climbing counter for PRACH repeated transmission, the device comprising: The control module is configured to control the power climbing counter to stop counting in response to the transmission state of the repeated transmission of the physical random access channel PRACH being no transmission or reduced power transmission.

13. A user equipment, comprising: processor; The processor is configured to control the power climbing counter to stop counting in response to the transmission state of the repeated transmission of the physical random access channel PRACH being no transmission or reduced power transmission.

14. A computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 11 are implemented.

15. A computer program product comprising a computer program, which, when executed by a processor, implements the steps of the method according to any one of claims 1 to 11.

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