Power Allocation, Acquisition Method, Device, and Node Equipment

Abstract

The present application discloses a power allocation and acquisition method, an apparatus, and a node device, which belong to the field of communication technology. The power acquisition method of the present application includes acquiring transmission power information of a distributed unit (DU) and transmission power information of a mobile terminal (MT), the transmission power information of the DU including a transmission power or a maximum transmission power of the DU, and the transmission power of the MT including a transmission power of at least one cell group of the MT.

Description

Technical Field

[0001] (Cross - reference to related applications) This application claims the priority of Chinese Patent Application No. 202010724914.8 filed in China on July 24, 2020, and all of its content is incorporated herein by reference.

[0002] The present invention relates to the field of communication technologies, and in particular, to a method for allocating and obtaining power, an apparatus, and a node device.

Background Art

[0003] In Integrated Access Backhaul (IAB) technology, the Distributed Unit (DU) of an IAB node and the Mobile Termination (MT) can transmit simultaneously. Also, an IAB node is connected to multiple parent IAB nodes and can transmit information to multiple parent IAB nodes simultaneously (for example, IAB MT performs dual connection). Considering the hardware constraints of IAB nodes, when the DU, MT Master Cell Group (MCG), and MT Secondary Cell Group (SCG) of an IAB node transmit simultaneously, it is necessary to share the total transmission power among the DU, MT MCG, and MT SCG. However, in the power sharing solution means of related technologies, the existence of multiple connections in the MT is not considered. Therefore, in related technologies, there is no solution means for performing power sharing among the MT MCG link, the MT SCG link, and the DU.

Summary of the Invention

Problems to be Solved by the Invention

[0004] The objective of the embodiments of this application is to provide a method for allocating and obtaining power, an apparatus, and a node device that can solve the problem of how at least one cell group of the DU and the MT performs power sharing.

Means for Solving the Problem

[0005] In order to solve the above technical problems, the present application is realized as follows.

[0006] In a first aspect, a power acquisition method applied to a first node device, including the step of acquiring transmission power information of a distributed unit DU and transmission power information of a mobile terminal MT, wherein the transmission power information of the DU includes the transmission power or the maximum transmission power of the DU, and the transmission power information of the MT includes the transmission power or the maximum transmission power of at least one cell group of the MT, and a power acquisition method is provided.

[0007] In a second aspect, a power allocation method applied to a second node device, including the step of setting transmission power information of a distributed unit DU and transmission power information of an MT, wherein the transmission power information of the DU includes the transmission power or the maximum transmission power of the DU, and the transmission power information of the MT includes the transmission power or the maximum transmission power of at least one cell group of the MT, and a power allocation method is provided.

[0008] In a third aspect, a power acquisition device applied to a first node device, including a first acquisition module for acquiring transmission power information of a distributed unit DU and transmission power information of a mobile terminal MT, wherein the transmission power information of the DU includes the transmission power or the maximum transmission power of the DU, and the transmission power information of the MT includes the transmission power or the maximum transmission power of at least one cell group of the MT, and a power acquisition device is provided.

[0009] In a fourth aspect, a power allocation device applied to a second node device, including a setting module for setting transmission power information of a distributed unit DU and transmission power information of an MT, Provided is a power allocation device, wherein the transmission power information of the DU includes the transmission power or the maximum transmission power of the DU, and the transmission power information of the MT includes the transmission power or the maximum transmission power of at least one cell group of the MT.

[0010] In a fifth aspect, provided is a node device including a processor, a memory, and a program or command stored in the memory and executable by the processor, wherein when the program or command is executed by the processor, the steps of the method according to the first aspect or the second aspect are realized.

[0011] In a sixth aspect, provided is a readable storage medium in which a program or command is stored, and when the program or command is executed by a processor, the steps of the method according to the first aspect are realized, or the steps of the method according to the second aspect are realized.

[0012] In a seventh aspect, provided is a chip including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor executes a program or command of a network-side device to realize the method according to the first aspect or the method according to the second aspect.

Advantages of the Invention

[0013] According to the embodiments of the present application, the transmission power information of the distributed unit DU and the transmission power information of the mobile terminal MT are obtained, and the transmission power information of the MT includes the transmission power of at least one cell group of the MT, whereby power sharing between the DU and at least one cell group of the MT can be realized, and the power efficiency of IAB transmission is improved.

Brief Description of the Drawings

[0014]

Figure 1

Figure 2

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Mode for Carrying Out the Invention

[0015] Hereinafter, while referring to the drawings in the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Naturally, the described embodiments are some of the embodiments of the present application, not all of them. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present application.

[0016] The terms "first", "second", etc. in the specification and claims of the present application are not for explaining a specific order or sequence, but for distinguishing similar objects. It should be understood that such terms may be replaced with each other in appropriate cases so that the embodiments of the present application can be implemented in an order other than that illustrated or described herein. Also, it should be understood that the objects distinguished by "first" and "second" usually belong to one category, and the number of objects is not limited. For example, the first object may be one or more. Also, "and / or" in the specification and claims represents at least one of the connected objects, and the symbol " / " generally represents that the related objects before and after are in an "or" relationship.

[0017] It should be noted that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system. Furthermore, for example, it can also be used in other wireless communication systems such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), and Single-carrier Frequency-Division Multiple Access (SC-FDMA), as well as in other systems. In the embodiments of the present application, the terms "system" and "network" are often used interchangeably, and the technology described can be used not only in the above-mentioned systems and radio communication technologies but also in other systems and radio communication technologies. However, for the purpose of illustration in the following description, the New Radio (NR) system will be described, and the NR term is used in many of the following descriptions. These technologies are applicable not only to the NR system but also, for example, to the 6th Generation (6G) communication system. th Generation, 6G) communication system.

[0018] To enable those skilled in the art to better understand the present invention, the IAB system will be described first below.

[0019] The integrated access backhaul (IAB) system is a technology standardized since NR Rel-16. Figure 1 shows a schematic diagram of the IAB system. One IAB node includes a Distributed Unit (DU) functional part and a Mobile Termination (MT) functional part. Through the MT, an access point (i.e., IAB node) 11 can find an upstream access point (parent IAB node) 12 and establish a wireless connection with the DU of the upstream access point, and this wireless connection is called a backhaul link. After a complete backhaul link is established for one IAB node, the IAB node turns on its DU function. The DU provides cell services, that is, the DU can provide access services to UEs. One integrated access backhaul line includes one donor IAB node 13, and the donor IAB node has a directly connected wired transmission network.

[0020] Figure 2 is a structural diagram of the Centralized Unit - Distributed Unit (CU - DU) of one IAB system. The CU is also called a control unit. In one integrated access backhaul line, the DUs of all IAB nodes are all connected to one CU node, and this node configures the DUs according to the F1 - AP protocol. The CU configures the MT according to the RRC protocol. The donor IAB node does not have an MT functional part.

[0021] The IAB system is introduced to solve the problem of insufficient deployment of the wired transmission network when access points are densely arranged. That is, in the case of no wired transmission network, the access point can rely on the wireless backhaul.

[0022] In the following, with reference to the drawings, the power acquisition method provided in the embodiments of the present application will be described in more detail by specific embodiments and their application scenarios.

[0023] As shown in FIG. 3, the embodiment of the present application provides a power acquisition method applied to a first node device, and the first node device is specifically an IAB node. The method includes the following step 301.

[0024] In step 301, obtain the transmission power information of the distributed unit DU and the transmission power information of the mobile terminal MT. The transmission power information of the DU includes the transmission power or the maximum transmission power of the DU, and the transmission power information of the MT includes the transmission power or the maximum transmission power of at least one cell group of the MT.

[0025] Obtaining the transmission power of at least one cell group of the MT described above may be to obtain the transmission power of the MT master cell group and the transmission power of the MT secondary cell group, or may be to obtain the transmission power of n cell groups of the MT, where n is less than or equal to N, and N is the number of cell groups of the MT.

[0026] Optionally, the transmission power information of the MT further includes the transmission power of the MT.

[0027] At least one of the transmission power information of the DU and the transmission power information of the MT is obtained by at least one of the following methods: protocol regulations, settings or instructions by the control unit CU, and settings or instructions by the parent node.

[0028] The above parent node is the parent node of the IAB node.

[0029] Optionally, the transmission power of the DU is static or semi-static, and the transmission power of at least one cell of the MT is determined statically, semi-statically or dynamically.

[0030] The power acquisition method of the embodiment of the present application acquires the transmission power information of the distributed unit DU and the transmission power information of the mobile terminal MT. The transmission power information of the DU includes the transmission power or the maximum transmission power of the DU, and the transmission power information of the MT includes the transmission power or the maximum transmission power of at least one cell group of the MT. Thereby, power sharing between the DU and at least one cell group of the MT can be realized, and the power efficiency of IAB transmission can be improved.

[0031] Optionally, the transmission power information of the DU and the transmission power information of the MT are valid at the first time, and the maximum transmission power information of the DU is not limited thereto at other times. For example, at other times, the DU is P total or a preset value P x (P x ≦P total ) may be sufficient, and P total is the total transmission power that the DU and the MT can support.

[0032] The first time is the time when the DU and at least one cell group of the MT transmit information simultaneously.

[0033] Further optionally, the first time is the time when the DU and at least one cell group of the MT actually transmit information simultaneously, or the first time is the time set so that the DU and at least one cell group of the MT transmit information simultaneously.

[0034] Further optionally, the first time is determined based on at least one of the time division multiplexing TDD setting of the DU and the MT and the setting of the DU resource type.

[0035] For example, for the same time-frequency resource block, when the DU is set as DL-Hard or DL-Soft and at the same time the MT is set (or scheduled) as uplink UL, it is determined that this DU and the MT are set to transmit information simultaneously.

[0036] The above DL-Hard and DL-Soft are resource types of DU. To support time-division multiplexing (TDM) between the access link and the backhaul link, Rel-16 defines three types of IAB DU resource types: Hard, Soft, and Not available (NA).

[0037] In the Hard type, for the access link of the IAB DU, the corresponding time-domain resources are always available.

[0038] In the Soft type, for the access link of the IAB DU, whether the corresponding time-domain resources can be used is controlled by the parent node.

[0039] In the NA type, for the access link of the IAB DU, the corresponding time-domain resources are always unavailable.

[0040] Optionally, the step of obtaining the transmission power information of the distributed unit (DU) and the transmission power information of the mobile terminal (MT) includes obtaining at least one of the DU transmission power information and the MT transmission power information for different first times. The first time includes one of the times when n cell groups of the DU and the MT transmit simultaneously, the time when the DU and MT master cell groups transmit simultaneously, the time when the DU and MT secondary cell groups transmit simultaneously, and the time when n cell groups of the MT transmit simultaneously, where 0 ≦ n ≦ N, n is an integer, and N is the number of MT cell groups.

[0041] It should be noted that when the n cell groups of the DU and MT transmit simultaneously, different values of n correspond to different first times. For example, when n = 2, it corresponds to one first time, and when n = 3, it corresponds to another first time. Similarly, when the n cell groups of the MT transmit simultaneously, different values of n correspond to different first times. In particular, in some cases, when there is no transmission by the DU unit, or no transmission by the MT unit, or no transmission by a certain cell group of the MT, the transmission power of the DU unit, MT unit, or certain cell group of the MT without transmission is 0. Optionally, the step of obtaining the transmission power information of the MT includes the steps of obtaining the transmission power of the physical random access channel PRACH and the transmission power of other uplink physical channels respectively. The other uplink physical channels include at least one of the transmission power of the physical uplink control channel, the transmission power of the physical uplink shared channel, and the transmission power of the sounding reference signal.

[0042] That is, in the embodiments of the present application, the acquisition of the transmission power of the PRACH is independent of the acquisition of the transmission power of other uplink physical channels, that is, the transmission power of the PRACH and the transmission power of other uplink physical channels are obtained by different signaling or methods respectively.

[0043] Also, different transmission power values can be limited for the MT-specific random access channel occasion and the common random access channel occasion.

[0044] Optionally, after the step of obtaining the transmission power information of the distributed unit DU and the transmission power information of the MT, the method further includes a step of notifying at least one of the sum of the transmission power of the DU and the transmission power of the MT, the transmission power information of the DU, and the transmission power information of the MT to a target node, where the target node is a parent node of the integrated access backhaul IAB node, a sub-node of the IAB node, or a central unit CU connected to the DU, and the IAB node is the IAB node to which the DU and the MT belong.

[0045] Specifically, at least one of the sum of the transmission power of the DU and the transmission power of the MT, the transmission power of the DU, and the transmission power of the MT can be notified to the target node by the IAB MT or the capability report of the IAB.

[0046] Optionally, the maximum transmission power of at least one cell group of the MT is the maximum transmission power Q of the MT master cell group MCG and the maximum transmission power Q of the MT secondary cell group SCG After the step of obtaining the transmission power information of the distributed unit DU and the transmission power information of the MT, the power acquisition method further includes a step of obtaining the actual maximum transmission power of the MT master cell group and the actual maximum transmission power of the MT secondary cell group according to a preset power sharing rule based on the Q MCG and Q SCG The preset power sharing rule includes a first power sharing rule for performing dynamic power sharing when the sum of Q MCG and Q SCG is greater than the first power, or a second power sharing rule for performing semi-static power sharing when the sum of Q MCG and Q SCG is less than or equal to the first power, where the first power is the maximum transmission power of the MT or a preset power fixed value.

[0047] The power sharing between the MCG and the SCG in dual connectivity (DC) is described below.

[0048] When the UE is in a dual-connection state, its transmission power can be shared between the MCG link and the SCG link. The power sharing between the MCG link and the SCG link can be divided into semi-static and dynamic power sharing.

[0049] Regarding semi-static power sharing, the sum of the maximum uplink transmission powers set for the MCG link and the SCG link is less than or equal to the total transmission power of the UE. When performing power control, the MCG and SCG are respectively limited by the set maximum transmission power. For NR-NR dual connection, the maximum transmission powers set for the MCG link and the SCG link are only applicable when the MCG link and the SCG link transmit simultaneously.

[0050] Regarding dynamic power sharing, LTE DC adopts the principle of minimum guaranteed power. One minimum guaranteed transmission power is set for each of the MCG link and the SCG link, and the sum of the two is less than or equal to the maximum transmission power of the UE. Then, the MCG link and the SCG link can share the remaining power (i.e., the remaining power after subtracting the sum of the minimum guaranteed transmission powers of the MCG link and the SCG link from the total power). NR-NR DC adopts the principle of maximum power. One maximum transmission power is set for each of the MCG link and the SCG link, and the sum of the two may be greater than the maximum transmission power of the UE. When the sum of the powers required for the simultaneously transmitting MCG link and SCG link is greater than the maximum transmission power of the UE, the UE preferentially allocates transmission power to the MCG link and needs to guarantee the transmission of the MCG link. However, the transmission power of the MCG link is still limited by the set maximum transmission power, and the transmission power of the SCG link is limited by the smaller of the maximum transmission power set for the SCG link and the remaining transmission power (i.e., the power obtained by subtracting the transmission power of the MCG link from the total power).

[0051] Optionally, before the step of obtaining the actual maximum transmission power of the MT master cell group and the actual maximum transmission power of the MT secondary cell group, When the preset power fixed value is different from the maximum transmission power of the MT, based on the difference between the preset power fixed value and the maximum transmission power of the MT, Q MCG and Q SCG further includes the step of adjusting at least one of them.

[0052] In the embodiments of the present application, the total transmission power Q MCG +Q SCG between MT cell groups is restricted by the maximum transmission power of the MT (P cmax or Q MT ), or is restricted by a preset power fixed value P fixed (P fixed =P cmax or P total ) defined or set by the protocol. P cmax is the maximum transmission power of the MT defined by the protocol, and P total is the set maximum transmission power of the MT.

[0053] When the preset power fixed value is different from the maximum transmission power of the MT, as an alternative implementation form, Q MCG or Q SCG is adjusted. For example, if the difference between the preset power fixed value and the maximum transmission power of the MT is 10 watts, that is, the preset power fixed value is 10 watts greater than the maximum transmission power value of the MT, Q MCG is decreased by 10 watts, or Q SCG is decreased by 10 watts. Also for example, if the difference between the preset power fixed value and the maximum transmission power of the MT is -10 watts, that is, the preset power fixed value is 10 watts less than the maximum transmission power value of the MT, Q MCG is increased by 10 watts, or Q SCG is increased by 10 watts, that is, the adjustment value of Q MCG or Q SCG is the same as the above difference.

[0054] When the preset power fixed value is different from the maximum transmission power of the MT, as another alternative implementation form, Q MCG and Q SCGAdjust both. Specifically, based on the difference between a preset power fixed value and the maximum transmission power of the MT, adjust Q at a first adjustment ratio MCG and adjust Q at a second adjustment ratio SCG . The first adjustment ratio and the second adjustment ratio may be the same or different. Optionally, the sum of the first adjustment ratio and the second adjustment ratio is 1. For example, the two adjustment ratios are each 0.5, that is, Q MCG and Q SCG divide the above difference equally. Optionally, the above-mentioned first adjustment ratio and second adjustment ratio are determined based on the above difference. For example, when the preset power fixed value increases by 10% relative to the maximum transmission power of the MT, it is determined that both the above-mentioned first adjustment ratio and second adjustment ratio are 10%, that is, Q MCG and Q SCG both increase by 10%.

[0055] Also, when there is no simultaneous transmission by the MCG and SCG of the MT, the maximum power of the MCG and SCG is limited by the maximum transmission power of the MT.

[0056] Optionally, the power acquisition method of the embodiments of the present application further includes the step of reporting at least one power headroom report PHR, and the power upper limit calculated by the PHR is assumed to be at least one of the power in the transmission power information and the actual maximum transmission power.

[0057] The maximum transmission power of the MT MCG / SCG is the theoretically achievable maximum transmission power (for example, P total , P cmax , Q MT , Q MCG , Q SCG , Q MCG after adjustment, Q SCG after adjustment, Q1, Q2), and / or the actual maximum transmission power (for example, the one obtained by excluding the transmission power occupied by the high-priority cell group from the maximum transmission power of the MT). Q1 is the maximum transmission power set for the master cell group, and Q2 is the maximum transmission power set for the secondary cell group.

[0058] In the embodiments of the present application, multiple PHRs can be reported simultaneously, or different PHRs can be reported according to different transmission situations.

[0059] The power acquisition method of the embodiments of the present application acquires the transmission power information of the distributed unit DU and the transmission power information of the mobile terminal MT. The transmission power information of the DU includes the transmission power or the maximum transmission power of the DU, and the transmission power information of the MT includes the transmission power or the maximum transmission power of at least one cell group of the MT. Thereby, power sharing between the DU and at least one cell group of the MT can be realized, and the power efficiency of IAB transmission can be improved.

[0060] As shown in FIG. 4, the embodiments of the present application further provide a power allocation method applied to a second node device, and the second node device is a CU or a parent node of the above IAB node. The method includes the following step 401.

[0061] In step 401, the transmission power information of the distributed unit DU and the transmission power information of the MT are set. The transmission power information of the DU includes the transmission power or the maximum transmission power of the DU, and the transmission power information of the MT includes the transmission power or the maximum transmission power of at least one cell group of the MT.

[0062] Optionally, the transmission power of the above DU is static or semi-static, and the transmission power of at least one cell of the above MT is allocated statically, semi-statically or dynamically.

[0063] Optionally, the transmission power information of the MT further includes the transmission power of the MT.

[0064] Setting the transmission power or maximum transmission power of at least one cell group of the MT may be setting the transmission power or maximum transmission power of the MT master cell group, or setting the transmission power or maximum transmission power of the MT secondary cell group, or setting the transmission power or maximum transmission power of n cell groups of the MT, where n is less than or equal to N, and N is the number of cell groups of the MT.

[0065] The power allocation method according to the embodiments of the present application sets the transmission power information of the distributed unit DU and the transmission power information of the MT. The transmission power information of the DU includes the transmission power or maximum transmission power of the DU, and the transmission power information of the MT includes the transmission power or maximum transmission power of at least one cell group of the MT. Thereby, power sharing between the DU and at least one cell group of the MT can be realized, and the power efficiency of IAB transmission can be improved.

[0066] In the embodiments of the present application, after setting the transmission power of the DU and the transmission power of the MT, the transmission power of at least one cell group of the MT may be set, or the transmission power of the DU and the transmission power of at least one cell group of the MT may be directly and independently allocated. For example, the transmission power of the DU, the transmission power of the MT master cell group, and the transmission power of the MT secondary cell group may be independently allocated.

[0067] Optionally, the step of allocating the transmission power of the distributed unit DU and the transmission power of the MT includes, for different first times, respectively allocating at least one of the transmission power information of the DU and the transmission power information of the MT. The first time includes one of the time when n cell groups of the DU and the MT transmit simultaneously, the time when the DU and the MT master cell group transmit simultaneously, the time when the DU and the MT secondary cell group transmit simultaneously, and the time when n cell groups of the MT transmit simultaneously, where 0 ≤ n ≤ N, and n is an integer, and N is the number of cell groups of the MT.

[0068] It should be noted that when n cell groups of the DU and MT transmit simultaneously, different values of n correspond to different first times. For example, when n = 2, it corresponds to one first time, and when n = 3, it corresponds to another first time. Similarly, when n cell groups of the MT transmit simultaneously, different values of n correspond to different first times. In particular, in some cases, if there is no transmission by the DU unit, or no transmission by the MT unit, or no transmission by a certain cell group of the MT, the transmission power of the DU unit, MT unit, or certain cell group of the MT without transmission is 0. Optionally, the step of setting the transmission power information of the MT includes steps of setting the transmission power of the physical random access channel and the transmission power of other uplink physical channels respectively. The other uplink physical channels include at least one of the transmission power of the physical uplink control channel, the transmission power of the physical uplink shared channel, and the transmission power of the sounding reference signal.

[0069] That is, in the embodiments of the present application, the acquisition of the transmission power of the PRACH is independent of the acquisition of the transmission power of other uplink physical channels, that is, the transmission power of the PRACH and the transmission power of other uplink physical channels are acquired by different signaling or methods respectively.

[0070] Also, different transmission power values can be limited for the MT-specific random access channel occasion and the common random access channel occasion.

[0071] In the following, the power allocation method of the embodiments of the present application will be described by a specific allocation method.

[0072] In Allocation Method 1, first, power is allocated between the DU and the MT, and then power is allocated among multiple cell groups of the MT.

[0073] First, allocate static power between the DU and the MT, or set semi-static power between the DU and the MT. Next, allocate the transmission power of at least one cell group of the MT.

[0074] Allocating static power between the DU and the MT may be to allocate the transmission power P0 / P of the DU and the transmission power P of the MT according to the protocol regulations. total and the transmission power P of the MT cmax Setting semi-static power between the DU and the MT may be to set the maximum transmission power Q of the DU and the maximum transmission power Q of the MT by signaling, and for the different transmission situations described above, different Qs DU and Qs MT may be set. Allocating the transmission power of at least one cell group of the MT may include allocating the maximum transmission power Q of the MT master cell group DU and the maximum transmission power Q of the MT secondary cell group MT Setting semi-static power between the DU and at least one cell group of the MT may include setting the maximum transmission power Q of the DU, setting the maximum transmission power Q1 of the MT master cell group, setting the maximum transmission power Q2 of the MT secondary cell group, and Q MCG and Q SCG may be allocated.

[0075] In allocation method 2, power is independently allocated between the DU and at least one cell group of the MT.

[0076] Set semi-static power between multiple cell groups of the DU and the MT. For example, set the maximum transmission power Q of the DU, set the maximum transmission power Q1 of the MT master cell group, set the maximum transmission power Q2 of the MT secondary cell group, and Q DU and Q DU +Q1+Q2≦P total where P total is the total transmission power supported by the DU and the MT.

[0077] Optionally, when multiple cell groups of the DU and the MT do not actually transmit simultaneously or are not set to transmit simultaneously at a certain time, the maximum transmission power of the DU is P total or P0, and the maximum transmission power of each cell group of the MT is P total or P cmax is.

[0078] Also, regarding setting semi-static power among multiple cell groups of DU and MT, when Q1 + Q2 > P cmax in this case, conventional dynamic power sharing is adopted among the cell groups of MT. Or, Q1 + Q2 ≤ P cmax may be restricted.

[0079] The power allocation method of the embodiment of the present application can realize power sharing between the DU and at least one cell group of the MT by allocating the transmission power of the distributed unit DU and the transmission power of at least one cell group of the MT, thereby improving the power efficiency of IAB transmission.

[0080] It should be noted that the execution subject of the power acquisition method provided in the embodiment of the present application may be a power acquisition device, or a control module in the power acquisition device for executing the power acquisition method. In the embodiment of the present application, taking the power acquisition device executing the power acquisition method as an example, the power acquisition device provided in the embodiment of the present application will be described.

[0081] As shown in FIG. 5, the embodiment of the present application provides a power acquisition device 500 applied to a first node device. The power acquisition device includes a first acquisition module 501 for acquiring the transmission power information of the distributed unit DU and the transmission power information of the mobile terminal MT. The transmission power information of the DU includes the transmission power or the maximum transmission power of the DU, and the transmission power information of the MT includes the transmission power or the maximum transmission power of at least one cell group of the MT.

[0082] The power acquisition device of the embodiment of the present application can realize power sharing between the DU and at least one cell group of the MT by acquiring the transmission power of the distributed unit DU and the transmission power of at least one cell group of the MT, thereby improving the power efficiency of IAB transmission.

[0083] In the power acquisition device according to the embodiment of the present application, the transmission power information of the MT further includes the transmission power of the MT. In the power acquisition device according to the embodiment of the present application, the transmission power information of the DU and the transmission power information of the MT are valid at a first time, and the first time is the time when at least one cell group of the DU and the MT transmits information simultaneously.

[0084] In the power acquisition device according to the embodiment of the present application, the first time is the time when at least one cell group of the DU and the MT actually transmits information simultaneously, or the first time is the time set so that at least one cell group of the DU and the MT transmits information simultaneously.

[0085] In the power acquisition device according to the embodiment of the present application, the first time is determined based on at least one of the time-division multiplexing TDD setting of the DU and the MT, and the setting of the DU resource type.

[0086] In the power acquisition device according to the embodiment of the present application, the first acquisition module acquires at least one of the transmission power of the DU and the transmission power of the MT by at least one of the following methods: protocol regulations, settings or instructions by the control unit CU, and settings or instructions by the parent node.

[0087] In the power acquisition device according to the embodiment of the present application, the first acquisition module is for acquiring at least one of the transmission power information of the DU and the transmission power information of the MT for different first times. The first time includes one of the following times: the time when n cell groups of the DU and the MT transmit simultaneously, the time when the DU and MT master cell groups transmit simultaneously, the time when the DU and MT secondary cell groups transmit simultaneously, and the time when n cell groups of the MT transmit simultaneously, where 0 ≤ n ≤ N, n is an integer, and N is the number of MT cell groups.

[0088] In the power acquisition device according to the embodiment of the present application, the first acquisition module is for acquiring the transmission power of the physical random access channel and the transmission power of other uplink physical channels respectively. The other uplink physical channels include at least one of the transmission power of the physical uplink control channel, the transmission power of the physical uplink shared channel, and the transmission power of the sounding reference signal.

[0089] The power acquisition device according to the embodiment of the present application further includes a notification module for notifying at least one of the sum of the transmission power of the DU and the transmission power of the MT, the transmission power information of the DU, and the transmission power information of the MT to a target node after the first acquisition module acquires the transmission power information of the distributed unit DU and the transmission power information of the MT. The target node is the parent node of the integrated access backhaul IAB node, a sub-node of the IAB node, or a central unit CU connected to the DU. The IAB node is the IAB node to which the DU and the MT belong.

[0090] In the power acquisition device according to the embodiment of the present application, the maximum transmission power of at least one cell group of the MT is the maximum transmission power Q of the MT master cell group MCG and the maximum transmission power Q of the MT secondary cell group SCG including.

[0091] After the first acquisition module of the power acquisition device acquires the transmission power information of the distributed unit DU and the transmission power information of the MT, the Q MCG and Q SCG Based on this, the power acquisition device further includes a second acquisition module for acquiring the actual maximum transmission power of the MT master cell group and the actual maximum transmission power of the MT secondary cell group according to a preset power sharing rule. The preset power sharing rule is that when the sum of Q MCG and Q SCG is greater than the first power, a first power sharing rule for performing dynamic power sharing, or Q MCG and Q SCGWhen the sum is less than or equal to the first power, it includes a second power sharing rule for performing semi-static power sharing, where the first power is the maximum transmission power of the MT or a preset fixed power value.

[0092] In the power acquisition device according to the embodiment of the present application, before the second acquisition module acquires the actual maximum transmission power of the MT master cell group and the actual maximum transmission power of the MT secondary cell group, if the preset fixed power value is different from the maximum transmission power of the MT, based on the difference between the preset fixed power value and the maximum transmission power of the MT, Q MCG and Q SCG further includes an adjustment module for adjusting at least one of them.

[0093] The power acquisition device according to the embodiment of the present application further includes a reporting module for reporting at least one power headroom report PHR, and it is assumed that the power upper limit calculated by the PHR is at least one of the power in the transmission power information and the actual maximum transmission power.

[0094] The power acquisition device according to the embodiment of the present application can realize power sharing between the DU and at least one cell group of the MT by acquiring the transmission power of the distributed unit DU and the transmission power of at least one cell group of the MT, and improve the power efficiency of IAB transmission.

[0095] The power acquisition device in the embodiment of the present application may be a device, or a member, integrated circuit, or chip within the first node device.

[0096] The power acquisition device provided in the embodiment of the present application realizes each process realized in the method embodiments of FIGS. 1 to 3 and can achieve similar technical effects. To avoid repetition, detailed description is omitted here.

[0097] Optionally, as shown in FIG. 6, the embodiment of the present application further provides a node device 600. The node device is specifically a first node device or a second node device. The node device includes a processor 601, a memory 602, and a program or command stored in the memory 602 and executable on the processor 601. For example, when the node device 600 is the first node device, when the program or command is executed by the processor 601, each process of the embodiment of the power acquisition method is realized, and the same technical effect can be achieved. When the node device 600 is the second node device, when the program or command is executed by the processor 601, each process of the embodiment of the power allocation method is realized, and the same technical effect can be achieved. To avoid duplication, detailed description is omitted here.

[0098] It should be noted that the execution subject of the power allocation method provided in the embodiment of the present application may be a power allocation device, or a control module for executing the power allocation method within the power allocation device. In the embodiment of the present application, taking the power allocation device executing the power allocation method as an example, the power allocation device provided in the embodiment of the present application is described.

[0099] As shown in FIG. 7, the embodiment of the present application further provides a power allocation device 700 applied to a second node device. The power allocation device 700 includes a setting module 701 for setting the transmission power information of the distributed unit DU and the transmission power information of the MT. The transmission power information of the DU includes the transmission power or the maximum transmission power of the DU, and the transmission power information of the MT includes the transmission power or the maximum transmission power of at least one cell group of the MT.

[0100] The power allocation device of the embodiment of the present application can realize power sharing between the DU and at least one cell group of the MT by setting the transmission power of the distributed unit DU and the transmission power of at least one cell group of the MT, improve the power efficiency of IAB transmission, and simplify the method for determining the IAB transmission power.

[0101] In the power allocation device according to the embodiment of the present application, the transmission power information of the MT further includes the transmission power of the MT.

[0102] In the power allocation device according to the embodiment of the present application, the setting module is for setting at least one of the transmission power information of the DU and the transmission power information of the MT for different first times. The first time includes one of the time when n cell groups of the DU and the MT transmit simultaneously, the time when the DU and the MT master cell groups transmit simultaneously, the time when the DU and the MT secondary cell groups transmit simultaneously, and the time when n cell groups of the MT transmit simultaneously, where 0 ≤ n ≤ N, n is an integer, and N is the number of MT cell groups.

[0103] In the power allocation device according to the embodiment of the present application, the setting module is for setting the transmission power of the physical random access channel and the transmission power of other uplink physical channels respectively. The other uplink physical channels include at least one of the transmission power of the physical uplink control channel, the transmission power of the physical uplink shared channel, and the transmission power of the sounding reference signal.

[0104] The power allocation device according to the embodiment of the present application can realize power sharing between the DU and at least one cell group of the MT by setting the transmission power of the distributed unit DU and the transmission power of at least one cell group of the MT, improve the power efficiency of IAB transmission, and simplify the method for determining the IAB transmission power.

[0105] As shown in FIG. 8, the embodiment of the present application further provides a node device. The node device is the above-mentioned first node device or second node device. The node device 800 includes an antenna 801, a radio frequency device 802, and a baseband device 803. The antenna 801 is connected to the radio frequency device 802. In the uplink direction, the radio frequency device 802 receives information via the antenna 801 and transmits the received information to the baseband device 803 for processing. In the downlink direction, the baseband device 803 processes the information to be transmitted, transmits it to the radio frequency device 802, and the radio frequency device 802 processes the received information and then transmits it via the antenna 801.

[0106] The above-mentioned frequency band processing device may be within the baseband device 803. The method executed by the first node device or the second node device in the above embodiment can be realized in the baseband device 803. The baseband device 803 includes a processor 804 and a memory 805.

[0107] The baseband device 803 may include, for example, at least one baseband board with a plurality of chips installed. As shown in FIG. 8, one of the chips is, for example, a processor 804 connected to the memory 805 to call a program in the memory 805 and execute the operations shown in the above method embodiment.

[0108] The baseband device 803 may further include a network interface 806 for communicating with the radio frequency device 802. The interface is, for example, a common public radio interface (CPRI).

[0109] Specifically, the node device according to an embodiment of the present invention further includes commands or programs stored in the memory 805 and executable on the processor 804. The processor 804 calls the commands or programs in the memory 805 to execute the methods executed by the respective modules shown in FIG. 6 or FIG. 7, and similar technical effects can be achieved. To avoid duplication, detailed description is omitted here.

[0110] Embodiments of the present application further provide a readable storage medium. The readable storage medium stores a program or commands, and when the program or commands are executed by a processor, each process of the embodiment of the power acquisition method or the embodiment of the power allocation method described above is realized, and similar technical effects can be achieved. To avoid duplication, detailed description is omitted here.

[0111] The processor is the processor in the node device described in the above embodiment. The readable storage medium includes a computer-readable storage medium, for example, a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, etc.

[0112] Embodiments of the present application further provide a chip. The chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor executes the programs or commands of the node device to realize each process of the embodiment of the power acquisition method or the embodiment of the power allocation method described above, and similar technical effects can be achieved. To avoid duplication, detailed description is omitted here.

[0113] It should be understood that the chip mentioned in the embodiments of the present application may also be referred to as a system-level chip, a system chip, a chip system, or a system-on-chip, etc.

[0114] It should be noted that in this specification, the term "comprising", "consisting of" or any other variation thereof is intended to include non-exclusive inclusion, such that a process, method, article or apparatus comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article or apparatus. Unless otherwise specified, the elements limited by the phrase "comprising one..." do not exclude the further presence of the same other elements in the process, method, article or apparatus comprising such elements. Also, it should be pointed out that the scope of the methods and apparatuses in the embodiments of the present application is not limited to performing functions in the order illustrated or considered, and may also include performing functions substantially simultaneously or in the reverse order according to such functions. For example, the described method may be performed in an order different from that described, and various steps may be added, omitted, or combined. Also, the features described with reference to any example may be combined in other examples.

[0115] From the description of the above embodiments, those skilled in the art can clearly understand that the method of the above examples can be realized in the form of a combination of software and the necessary common hardware platform. Of course, it may also be realized by hardware, but in many cases the former is a more preferred embodiment. Based on such an understanding, the technical solution of the present application, in essence or the part contributing to the prior art, can be implemented in the form of a software product. The computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes a plurality of commands for causing a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the respective embodiments of the present application.

[0116] The embodiments of the present application have been described above with reference to the drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely exemplary and not restrictive. Based on the suggestions of the present application, many forms that those skilled in the art can achieve without departing from the spirit and protection scope of the claims of the present application all belong to the protection scope of the present application.

Claims

1. A power acquisition method applied to a first node device, comprising: obtaining transmission power information of a distributed unit DU and transmission power information of a mobile terminal MT, wherein the transmission power information of the DU includes the maximum transmission power of the DU, and the transmission power information of the MT includes the transmission power or the maximum transmission power of at least one cell group of the MT, The maximum transmission power of at least one cell group of the MT is the maximum transmission power Q of the MT master cell group ＭＣＧ and the maximum transmission power Q of the MT secondary cell group ＳＣＧ and includes after the step of obtaining the transmission power information of the distributed unit DU and the transmission power information of the MT, the power acquisition method said Q ＭＣＧ and Q ＳＣＧ further comprising the step of obtaining the actual maximum transmission power of the MT master cell group and the actual maximum transmission power of the MT secondary cell group according to a preset power sharing rule based on wherein the preset power sharing rule is Q ＭＣＧ and Q ＳＣＧ If the sum of is greater than the first power, a first power sharing rule for performing dynamic power sharing, or Q ＭＣＧ and Q ＳＣＧ If the sum of is less than or equal to the first power, it includes a second power sharing rule for performing semi-static power sharing, a power acquisition method, wherein the first power is the maximum transmission power of the MT or a preset power fixed value.

2. The transmission power information of the DU and the transmission power information of the MT are valid at a first time, wherein the first time is a time when the DU and at least one cell group of the MT transmit information simultaneously. The power acquisition method according to claim 1.

3. The first time is a time when the DU and at least one cell group of the MT actually transmit information simultaneously, or the first time is a time set so that the DU and at least one cell group of the MT transmit information simultaneously. The power acquisition method according to claim 2.

4. The first time is determined based on at least one of a time-division multiplexing TDD setting of the DU and the MT and a setting of the DU resource type. The power acquisition method according to claim 3.

5. At least one of the transmission power information of the DU and the transmission power information of the MT is obtained by at least one of protocol regulations, settings or instructions by a control unit CU, and settings or instructions by a parent node. The power acquisition method according to claim 1.

6. The step of obtaining the transmission power information of the distributed unit DU and the transmission power information of the mobile terminal MT includes obtaining at least one of the transmission power information of the DU and the transmission power information of the MT for different first times, wherein the first time includes a time when the DU and n cell groups of the MT transmit simultaneously, a time when the DU and the MT master cell group transmit simultaneously, and a time when the DU and the MT secondary cell group transmit simultaneously. The power acquisition method according to claim 2, wherein 0 < n ≦ N, n is an integer, N is the number of cell groups of the MT, and the n cell groups are n cell groups in the cell groups of the MT.

7. The step of obtaining the transmission power information of the MT includes: obtaining the transmission power of the physical random access channel and the transmission power of other uplink physical channels respectively, wherein the other uplink physical channels include: the transmission power of the physical uplink control channel, the transmission power of the physical uplink shared channel, and the transmission power of the sounding reference signal, and includes at least one of them. The power acquisition method according to claim 1.

8. After the step of obtaining the transmission power information of the distributed unit DU and the transmission power information of the MT, further includes the step of notifying at least one of the sum of the transmission power of the DU and the transmission power of the MT, the transmission power information of the DU, and the transmission power information of the MT to the target node, wherein the target node is a parent node of the integrated access backhaul IAB node, a sub-node of the IAB node, or a central unit CU connected to the DU, and the IAB node is the IAB node to which the DU and the MT belong. The power acquisition method according to claim 1.

9. Before the step of obtaining the actual maximum transmission power of the MT master cell group and the actual maximum transmission power of the MT secondary cell group, When the preset fixed power value is different from the maximum transmission power of the MT, based on the difference between the preset fixed power value and the maximum transmission power of the MT, Q ＭＣＧ and Q ＳＣＧ The power acquisition method according to claim 1, further comprising the step of adjusting at least one of them.

10. further includes the step of reporting at least one power headroom report PHR, assuming that the power upper limit calculated by the PHR is at least one of the power in the transmission power information and the actual maximum transmission power. The power acquisition method according to claim 1.

11. A power allocation method applied to a second node device, including: setting the transmission power information of the distributed unit DU and the transmission power information of the MT, wherein the transmission power information of the DU includes the maximum transmission power of the DU, and the transmission power information of the MT includes the transmission power or the maximum transmission power of at least one cell group of the MT, The power acquisition method is after the step of obtaining the transmission power information of the distributed unit DU and the transmission power information of the MT, wherein the preset power sharing rule is: The maximum transmission power of at least one cell group of the MT is the maximum transmission power Q of the MT master cell group ＭＣＧ and the maximum transmission power Q of the MT secondary cell group ＳＣＧ and includes The first power is the maximum transmission power of the MT or a preset power fixed value. The power allocation method. Said Q ＭＣＧ and Q ＳＣＧ further includes the step of obtaining the actual maximum transmission power of the MT master cell group and the actual maximum transmission power of the MT secondary cell group according to a preset power sharing rule based thereon.

12. Q ＭＣＧ and Q ＳＣＧ If the sum of is greater than the first power, a first power sharing rule for performing dynamic power sharing, or Q ＭＣＧ and Q ＳＣＧ If the sum of is less than or equal to the first power, it includes a second power sharing rule for performing semi-static power sharing, ​ ​ The step of setting the transmission power information of the dispersion unit DU and the transmission power information of the MT includes: For different first times, respectively setting at least one of the transmission power information of the DU and the transmission power information of the MT, wherein the first time is the time when the DU and n cell groups of the MT transmit simultaneously, the time when the DU and the MT master cell group transmit simultaneously, the time when the DU and the MT secondary cell group transmit simultaneously, and includes one of them, 0 < n ≦ N, n is an integer, N is the number of cell groups of the MT, and the n cell groups are n cell groups in the cell groups of the MT. The power allocation method according to claim 11.

13. The step of setting the transmission power information of the MT includes: respectively setting the transmission power of the physical random access channel and the transmission power of other uplink physical channels, wherein the other uplink physical channels include the transmission power of the physical uplink control channel, the transmission power of the physical uplink shared channel, the transmission power of the sounding reference signal, and includes at least one of them. The power allocation method according to claim 11.

14. A first node device including a processor, a memory, and a program or command stored in the memory and executable by the processor. When the program or command is executed by the processor, the steps of the power acquisition method according to any one of claims 1 to 10 are realized.

15. A second node device including a processor, a memory, and a program or command stored in the memory and executable by the processor. When the program or command is executed by the processor, the steps of the power allocation method according to any one of claims 11 to 13 are realized.

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