Transmission control method and device

Abstract

An embodiment of the present invention provides a transmission control method and apparatus, including transmitting first information for informing a master node and / or a secondary node of a terminal of power control parameters used by the terminal in a dual connectivity uplink power sharing mechanism.

Description

Technical Field

[0001] (Cross-reference to Related Applications) This application claims the priority of Chinese Patent Application No. 202010238952.2, filed in China on March 30, 2020, and the entire content of the application is incorporated herein by reference.

[0002] Embodiments of the present invention relate to the field of communication technologies, and more specifically, to a transmission control method and device.

Background Art

[0003] In dual connectivity, two network node (access network network element) resources can be provided to a terminal (e.g., a user equipment (UE)), one of the network nodes is called a master node (MN), and the other is called a secondary node (SN).

[0004] Each network node uses carrier aggregation (CA), that is, a series of serving cells, also called a cell group (CG), controlled by this node, are arranged for the UE. The cell group controlled by the MN is the Master Cell Group (MCG), and the cell group controlled by the secondary node is the Secondary Cell Group (SCG). Each cell group includes a special cell (SpCell) and a series of secondary cells (Scell). The special cell in the MCG is called the Primary Cell (PCell), and the special cell in the SCG is called the Primary Secondary Cell (PSCell). In the cell group, the SpCell uses the primary carrier, while the other secondary cells use the secondary carrier, and resource scheduling within the cell group is performed by the SpCell.

[0005] In the dual-connection uplink power sharing mechanism, when the uplink transmission of the MCG and the uplink transmission of the SCG are performed simultaneously, in order to ensure that the sum of the two does not exceed the maximum uplink transmission power of the terminal, the UE needs to adjust the uplink transmission power in the MCG or the SCG. However, since the network side does not know the uplink transmission power in the MCG or the SCG used during the adjustment by the terminal, it cannot perform transmission control accordingly.

Summary of the Invention

Problems to be Solved by the Invention

[0006] One object of an embodiment of the present invention is to provide a transmission control method and apparatus for solving the problem that the network side does not know the uplink transmission power in MCG or SCG used during adjustment by a terminal, and thus cannot perform transmission control accordingly.

Means for Solving the Problem

[0007] According to a first aspect, an embodiment of the present invention provides a transmission control method used for a terminal. This transmission control method includes transmitting first information for notifying power control parameters used by the terminal in a dual-connection uplink power sharing mechanism to a master node and / or a secondary node of the terminal.

[0008] According to a second aspect, an embodiment of the present invention further provides a transmission control method used for a network device. This transmission control method includes receiving, from the terminal, first information for notifying power control parameters used by the terminal in a dual-connection uplink power sharing mechanism to a master node and / or a secondary node of the terminal, and performing transmission control on the terminal based on the first information.

[0009] According to a third aspect, an embodiment of the present invention further provides a terminal. This terminal includes a first transmission module for transmitting first information for notifying power control parameters used by the terminal in a dual-connection uplink power sharing mechanism to a master node and / or a secondary node of the terminal.

[0010] According to a fourth aspect, an embodiment of the present invention further provides a network device. This network device A receiving module for receiving, from the terminal, first information for notifying power control parameters used by the terminal in a dual connection uplink link power sharing mechanism to a master node and / or a secondary node of the terminal; A control module for performing transmission control on the terminal based on the first information.

[0011] According to a fifth aspect, an embodiment of the present invention further provides a communication device. The communication device includes a processor, a memory, and a program stored in the memory and executable on the processor. When the program is executed by the processor, it realizes the steps of the transmission control method described in the first aspect or the second aspect.

[0012] According to a sixth aspect, an embodiment of the present invention further provides a computer-readable storage medium. A computer program is stored in the computer-readable storage medium. When the computer program is executed by a processor, it realizes the steps of the transmission control method described in the first aspect or the second aspect.

[0013] According to a seventh aspect, an embodiment of the present invention further provides a computer program product. The computer program product is stored in a non-volatile storage medium. The program product is configured to be executed by at least one processor to realize the steps of the transmission control method described in the first aspect or the second aspect.

[0014] According to an eighth aspect, an embodiment of the present invention further provides a communication device. The communication device is configured to execute the transmission control method described in the first aspect or the second aspect.

Advantages of the Invention

[0015] In an embodiment of the present invention, a master node and / or a secondary node of a terminal can obtain power control parameters used by this terminal in a dual-connection uplink link power sharing mechanism based on first information reported by the terminal. In this way, the master node and / or the secondary node of the terminal can perform transmission control based on the power allocation situation of the terminal, for example, perform power control on uplink transmission in MCG or SCG, optimize network scheduling, etc., and further improve the uplink transmission quality of the terminal.

Brief Description of the Drawings

[0016] By reading the detailed description of the following embodiments, various other advantages and benefits will become apparent to those skilled in the art. The accompanying drawings are only used to illustrate the purpose of the preferred embodiments and are not considered to limit the present invention. Throughout the accompanying drawings, the same parts are represented by the same reference numerals. In the accompanying drawings,

Figure 1

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Figure 6

Modes for Carrying Out the Invention

[0017] To make it easier to understand the embodiments of the present invention, the following technical points will be introduced next.

[0018] (1) Main Scenarios of DC / CA Depending on the radio access technology and core network type, the Dual Connectivity (DC) scenario is classified as follows.

[0019] When the core network is an Evolved Packet Core (EPC), it is EN-DC (EUTRA-NR Dual Connectivity), with an Evolved Node B (eNB) as the MN and an EN-gNB (a fifth generation (5G) base station that docks with a fourth generation (4G) core network in the Option 3 series of non-standalone networking architectures, called an en-gNB) as the SN, which is a multi-rat dual connectivity (MR-DC) architecture.

[0020] When the core network is a 5G core network (5G Core, 5GC), it is NR NR Dual Connectivity (NR-DC), with a gNB as the MN and a gNB as the SN, which is an MR-DC architecture, it is NR-E-UTRA Dual Connectivity (NE-DC) between 5G NR and a 4G radio access network, with a gNB as the MN and a Next Generation eNodeB (NG-eNB) as the SN, which is a multi-rat dual connectivity (MR-DC) architecture, it is NG-RAN E-UTRA-NR Dual Connectivity (NGEN-DC) between a 4G radio access network and 5G NR in a 5G core network, with an NG-eNB as the MN and a gNB as the SN, which is an MR-DC architecture.

[0021] (2) Dual-connection uplink power sharing mechanism In NR-DC, assuming that the maximum uplink transmission power (P total ) of the UE is constant, when uplink transmission of the master cell group MCG and uplink transmission of the secondary cell group SCG occur simultaneously (i.e., overlap, specifically, uplink transmission of any one serving cell in the MCG and uplink transmission of any one serving cell in the SCG occur simultaneously), in order to ensure that the sum of the two does not exceed P total , the UE needs to adjust the uplink transmission power of the MCG or SCG.

[0022] If the UE starts SCG uplink transmission at time T0 and represents the SCG uplink transmission power as pwr_SCG, the UE calculates pwr_SCG at time T0 based on the following method.

[0023] Before time T0 - T_offset, the UE monitors the Physical Downlink Control Channel (PDCCH) of the MCG. ■ If this PDCCH triggers / indicates that an MCG uplink transmission overlapping with the SCG uplink transmission at time T0 has occurred for this UE, the SCG uplink transmission power of the UE should satisfy pwr_SCG <= min{P SCG , P total - MCG tx power}. Here, P total is the maximum uplink transmission power of the UE, P SCG is the maximum uplink transmission power of the SCG, and MCG tx power is the uplink transmission power of the MCG. ■ Otherwise, pwr_SCG <= P total . After T0 - T_offset, the UE does not want the PDCCH of the MCG to schedule the UE to perform an MCG uplink transmission overlapping with the SCG uplink transmission at time T0.

[0024] However, T_offset is the amount of time offset used by the UE in the uplink power sharing mechanism. The following is an introduction to the T_offset value.

[0025] Currently, the value of T_offset is

Number

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[0026] The meanings of the above parameters are as follows.

[0027]

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[0028]

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Number

[0029] In the process of implementing the present invention, the prior art has the following problems.

[0030] 1) The UE is based on the received MCG configuration, SCG configuration, and parameter values agreed upon by some protocols, as described above

Number

[0031] When the SN configures the SCG for the UE, there are two ways to transmit to the UE.

[0032] Method 1: Transmit to the UE via the MN SRB1.

[0033] Method 2: The SN transmits to the UE via the SRB3.

[0034] In Method 1, when the MN transmits the SCG configuration information, it adopts the same acquisition method as the UE,

Number

[0035] In Method 2, since the MN cannot obtain the SCG configuration,

Number

[0036] 2) Before the time T0 - T_offset, the UE monitors the PDCCH of the MCG to determine whether there is an overlap transmission. If there is an overlap transmission, it is necessary to preferentially ensure the uplink transmission power of the MCG and adjust the uplink transmission power of the SCG.

[0037] The following clearly and completely describes the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0038] The term "comprising" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive "comprising". For example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, and may also include other steps or units not clearly listed or specific to those processes, methods, products or devices. It should be noted that "and / or" used in the specification and claims represents at least one of the connected objects. For example, A and / or B represents three cases: A alone, B alone, and the combination of A and B.

[0039] In the embodiments of the present invention, terms such as "exemplary" or "for example" are used to represent by way of example, illustration, or explanation. In the embodiments of the present invention, any embodiment or design described as "exemplary" or "for example" should not be construed as being more preferred or having more advantages than other embodiments or designs. Exactly speaking, the use of terms such as "exemplary" or "for example" is intended to show related concepts in a specific manner.

[0040] The technology described in this specification is not limited to Long Time Evolution (LTE) / LTE-Advanced (LTE-A) systems, but may be used in various 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), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems.

[0041] The terms "system" and "network" are always used interchangeably. A CDMA system can implement radio technologies such as, for example, CDMA2000, Universal Terrestrial Radio Access (UTRA). UTRA includes Wideband Code Division Multiple Access (WCDMA (registered trademark)) and other CDMA variants. A TDMA system can implement radio technologies such as, for example, Global System for Mobile Communication (GSM). An OFDMA system can implement radio technologies such as, for example, Ultra Mobile Broadband (UMB), Evolution-UTRA (E-UTRA), IEEE 802.11 (Wireless Fidelity (Wi-Fi)), IEEE 802.16 (Worldwide Interoperability for Microwave Access (WiMAX)), IEEE 802.20, Flash (registered trademark)-OFDM, etc. UTRA and E-UTRA are part of the Universal Mobile Telecommunications System (UMTS). LTE and higher levels of LTE (e.g., LTE-A) use a new UMTS version of E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization called the "3rd Generation Partnership Project" (3GPP (registered trademark)). CDMA2000 and UMB are described in documents from an organization called the "3rd Generation Partnership Project 2" (3GPP (registered trademark)2). The technology described in this specification may be used in the systems and radio technologies mentioned above, or in other systems and radio technologies.

[0042] The following introduces embodiments of the present invention while referring to the accompanying drawings. The transmission control method and device according to the embodiments of the present invention can be used in a wireless communication system. Referring to FIG. 1, it is a schematic architecture diagram of a wireless communication system according to an embodiment of the present invention. As shown in FIG. 1, this wireless communication system may include a network device 10, a network device 11, and a terminal 12. The terminal 12 may be denoted as UE12, and the terminal 12 can communicate (transmit signaling or transmit data) with the network device 10 and the network device 11. In actual applications, the connections between the above devices may be wireless connections, and for the sake of easily and intuitively representing the connection relationships between the devices, they are shown as solid lines in FIG. 1.

[0043] The network device 10 and the network device 11 according to the embodiments of the present invention may be base stations, which may be generally used base stations, evolved node base stations (eNB), or devices such as network devices in a 5G system (for example, next generation node base stations (gNB) or transmission and reception points (TRP)).

[0044] The terminal 12 according to the embodiments of the present invention may be a mobile phone, a tablet computer, a notebook computer, an ultra-mobile personal computer (UMPC), a netbook, or a personal digital assistant (PDA), a mobile Internet device (MID), a wearable device, or an in-vehicle device, etc.

[0045] Referring to FIG. 2, an embodiment of the present invention further provides a transmission control method. The execution entity of this method is a terminal and includes step 201.

[0046] Step 201: Transmit first information, where the first information notifies the master node (MN) and / or secondary node (SN) of the terminal of the power control parameters used by the terminal in the dual-connection uplink link power sharing mechanism, so that the master node and / or the secondary node perform transmission control based on the first information. For example, power control is performed on the uplink transmission in MCG or SCG, and it is used to optimize network scheduling and the like.

[0047] In some embodiments, the terminal directly transmits at least part of the content of the first information to the master node or the secondary node. This first information is used to notify the master node of the terminal of the power control parameters used by the terminal in the dual-connection uplink link power sharing mechanism. Or, the terminal transmits at least part of the content of the first information to the secondary node via the master node. This first information is used to notify the secondary node of the terminal of the power control parameters used by the terminal in the dual-connection uplink link power sharing mechanism. Or, the terminal transmits at least part of the content of the first information to the master node via the secondary node. This first information is used to notify the master node of the terminal of the power control parameters used by the terminal in the dual-connection uplink link power sharing mechanism.

[0048] In some embodiments, the terminal transmits the first information by one of (a) terminal assistance information, (b) a Radio Resource Control (RRC) reconfiguration complete message, (c) terminal capabilities, (d) an RRC connection recovery complete message, and (e) an RRC connection establishment complete message. That is, the terminal records the first information in one of (a) to (e) and reports it to the network device.

[0049] In some embodiments, the first information may include at least one of the following.

[0050] (1) The time offset amount (T_offset) used in the uplink power sharing mechanism.

[0051] For example, the MN can obtain the T_offset from the first information, and based on the T_offset, the MN can optimize network scheduling and avoid losses in MCG uplink transmission.

[0052] Also for example, the SN can obtain the T_offset from the first information, and the SN can schedule the UE to perform SCG uplink transmission at an appropriate time and avoid losses in SCG uplink transmission.

[0053] (2) The maximum preparation time of the terminal in the SCG.

[0054] For example, based on the maximum preparation time of the terminal in the SCG, the MN can calculate the T_offset, thereby optimizing network scheduling, for example, scheduling the UE to perform MCG uplink transmission at an appropriate time and avoiding losses in MCG uplink transmission.

[0055] (3) The maximum preparation time of the terminal in the MCG.

[0056] For example, the SN can calculate T_offset based on the maximum preparation time of the terminal in the MCG, and the SN can know whether the UE can perform SCG uplink transmission using the maximum uplink total power, thereby optimizing network scheduling, for example, scheduling the UE to perform SCG uplink transmission at an appropriate time and avoiding losses suffered by the SCG uplink transmission.

[0057] Optionally, the MN may send the maximum preparation time of the terminal in the MCG to the SN, or the terminal may send the maximum preparation time of the terminal in the MCG to the SN.

[0058] (4) It is the first parameter set for calculating the maximum preparation time of the MCG.

[0059] For example, the SN can calculate T_offset based on the maximum preparation time of the terminal in the MCG, and the SN can know whether the UE can perform SCG uplink transmission using the maximum uplink total power, thereby optimizing network scheduling, for example, scheduling the UE to perform SCG uplink transmission at an appropriate time and avoiding losses suffered by the SCG uplink transmission.

[0060] (5) It is the second parameter set for calculating the maximum preparation time of the SCG.

[0061] For example, the MN can calculate T_offset based on the maximum preparation time of the terminal in the SCG, thereby optimizing network scheduling, for example, scheduling the UE to perform MCG uplink transmission at an appropriate time and avoiding losses suffered by the MCG uplink transmission. It can be understood that transmitting at least a part of the content in the first information corresponds to transmitting one or more of (1) to (5) in the above power control parameters, or transmitting at least a part of the content in the above first parameter set or second parameter set.

[0062] Optionally, the first parameter set includes at least one of the following.

[0063] (1) The PUSCH preparation time of the terminal in the MCG.

[0064] It can be understood that the PUSCH preparation time is the time from when the terminal receives the last symbol of the PDCCH that schedules the PUSCH until the UE starts to transmit the PUSCH.

[0065] (2) The CSI preparation time of the terminal in the MCG.

[0066] (3) The PUSCH preparation time when the PUSCH of the terminal in the MCG is multiplexed with the PUCCH and / or another PUSCH.

[0067] It can be understood that the other PUSCH may be a PUSCH other than the PUSCH in the MCG.

[0068] (4) The CSI preparation time when the PUSCH or PUCCH through which the terminal transmits CSI on the MCG is multiplexed with another PUCCH or PUSCH.

[0069] It can be understood that the other PUCCH or PUSCH means a PUCCH or PUSCH other than the PUCCH or PUSCH through which CSI is transmitted on the MCG.

[0070] (5) The SPS PDSCH release preparation time when the PUSCH or PUCCH through which the terminal transmits the SPS PDSCH release on the MCG is multiplexed with another PUCCH and / or PUSCH.

[0071] It can be understood that the other PUCCH or PUSCH means a PUCCH or PUSCH other than the PUCCH or PUSCH through which the SPS PDSCH release is transmitted on the MCG.

[0072] (6) A third parameter, wherein the third parameter is that the terminal the PUSCH preparation time of the MCG or the CSI preparation time of the MCG, and is used to calculate one or more of the PUSCH preparation time, CSI preparation time, or SPS PDSCH release preparation time when the PUCCH or PUSCH of the MCG is multiplexed with other PUCCH and / or PUSCH.

[0073] It can be understood that other PUCCH or PUSCH means PUCCH or PUSCH other than the PUCCH or PUSCH of the MCG.

[0074] It can be understood that the third parameter is not limited to one and may be plural.

[0075] Optionally, the second parameter set is (1) the PUSCH preparation time of the terminal in the SCG, and (2) the CSI preparation time of the terminal in the SCG, and (3) the PUSCH preparation time when the PUSCH of the terminal in the SCG is multiplexed with PUCCH and / or other PUSCH, and (4) the CSI preparation time when the PUSCH or PUCCH for the terminal to transmit CSI on the SCG is multiplexed with other PUCCH or PUSCH, and (5) the SPS PDSCH release preparation time when the PUSCH or PUCCH for the terminal to transmit SPS PDSCH release on the SCG is multiplexed with other PUCCH and / or PUSCH, and (6) includes at least one of the following and a fourth parameter, wherein the fourth parameter is that the terminal the PUSCH preparation time or CSI preparation time of the SCG, and It is used to calculate one or more of the PUSCH preparation time, CSI preparation time, or SPS PDSCH release preparation time when the PUCCH or PUSCH of the SCG is multiplexed with other PUCCH and / or PUSCH.

[0076] It can be understood that the fourth parameter may be not limited to one, but may be multiple.

[0077] In an embodiment of the present invention, the terminal reports power control parameters used in the dual-connection uplink power sharing mechanism to the network side. In this way, the master node and / or secondary node of the terminal can perform transmission control based on the power allocation situation of the terminal, for example, perform power control on the uplink transmission in the MCG or SCG, optimize network scheduling, etc., and can improve the uplink transmission quality.

[0078] Referring to FIG. 3, an embodiment of the present invention further provides a transmission control method. This method has the network device as the execution subject and includes step 301 and step 302.

[0079] Step 301, receive, from the terminal, first information for notifying the master node and / or secondary node of the terminal of the power control parameters used by the terminal in the dual-connection uplink power sharing mechanism.

[0080] For example, the network device is the secondary node of the terminal, and this secondary node may receive at least some of the content in the first information from the terminal via the master node.

[0081] In some embodiments, the first information may include at least one of the following.

[0082] (1) The time offset amount used in the uplink power sharing mechanism.

[0083] For example, MN can obtain T_offset based on the first piece of information. MN can optimize network scheduling based on T_offset and avoid losses in MCG uplink transmission. Also, for example, SN can obtain T_offset based on the first piece of information. SN can schedule the UE to perform SCG uplink transmission at an appropriate time and avoid losses in SCG uplink transmission.

[0084] (2) It is the maximum preparation time of the terminal in SCG.

[0085] For example, MN can calculate T_offset based on the maximum preparation time of the terminal in SCG, thereby optimizing network scheduling. For example, MN can schedule the UE to perform MCG uplink transmission at an appropriate time and avoid losses in MCG uplink transmission.

[0086] (3) It is the maximum preparation time of the terminal in MCG.

[0087] For example, SN can calculate T_offset based on the maximum preparation time of the terminal in MCG. SN can know whether the UE can perform SCG uplink transmission using the maximum uplink total power, thereby optimizing network scheduling. For example, SN can schedule the UE to perform SCG uplink transmission at an appropriate time and avoid losses in SCG uplink transmission.

[0088] (4) It is the first parameter set for calculating the maximum preparation time of MCG.

[0089] For example, the SN can calculate T_offset based on the maximum preparation time of the terminal in the MCG, and the SN can know whether the UE can perform SCG uplink transmission using the maximum uplink total power, thereby optimizing network scheduling, for example, scheduling the UE to perform SCG uplink transmission at an appropriate time to avoid losses suffered by the SCG uplink transmission.

[0090] (5) It is the second parameter set for calculating the maximum preparation time of the SCG.

[0091] For example, the MN can calculate T_offset based on the maximum preparation time of the terminal in the SCG, thereby optimizing network scheduling, for example, scheduling the UE to perform MCG uplink transmission at an appropriate time to avoid losses suffered by the MCG uplink transmission.

[0092] Note that the descriptions of the first parameter set and the second parameter set may refer to the embodiments shown in FIG. 2.

[0093] Step 302: Based on the first information, perform transmission control on the terminal.

[0094] Optionally, performing transmission control on the terminal as described above includes at least one of the following.

[0095] (1) Controlling the uplink transmission power of the terminal in the master cell group, For example, controlling the uplink transmission power of the terminal in any one serving cell of the master cell group.

[0096] (2) Controlling the uplink transmission power of the terminal in the secondary cell group, For example, controlling the uplink transmission power of the terminal in any one serving cell of the secondary cell group.

[0097] (3) To optimize network scheduling, for example, adjusting the uplink transmission position of the terminal in the master cell group, or scheduling the terminal to perform uplink transmission at an appropriate time, or controlling the terminal to perform uplink transmission preferentially or deferentially.

[0098] Optionally, the network device is the master node of the terminal, and the method further includes transmitting second information to the secondary node of the terminal, and the second information includes at least one of the following.

[0099] (1) The time offset amount used in the uplink power sharing mechanism.

[0100] (2) The maximum preparation time of the terminal in the MCG.

[0101] (3) The PUSCH preparation time of the terminal in the MCG.

[0102] (4) The CSI preparation time of the terminal in the MCG.

[0103] (5) The PUSCH preparation time when the PUSCH of the terminal in the MCG is multiplexed with the PUCCH and / or another PUSCH.

[0104] (6) The CSI preparation time when the PUSCH or PUCCH for the terminal to transmit CSI on the MCG is multiplexed with another PUCCH and / or PUSCH.

[0105] (7) The SPS PDSCH release preparation time when the PUSCH or PUCCH for the terminal to transmit the SPS PDSCH release on the MCG is multiplexed with another PUCCH and / or PUSCH.

[0106] (8) The fifth parameter, where the fifth parameter is used by the terminal to calculate one or more of the PUSCH preparation time or CSI preparation time of the MCG and the PUSCH preparation time, CSI preparation time, or SPS PDSCH release preparation time when the PUCCH or PUSCH of the MCG is multiplexed with other PUCCH and / or PUSCH.

[0107] It can be understood that the fifth parameter is not limited to one, and may be plural.

[0108] (9) The sixth parameter for the secondary node to obtain the related configuration information of the physical downlink control channel of the terminal in the MCG.

[0109] It can be understood that the sixth parameter is not limited to one, and may be plural.

[0110] When the secondary node obtains the PDCCH configuration of the terminal in the MCG, it can estimate whether the UE can perform SCG uplink transmission using the maximum uplink total power. Furthermore, it can be understood that the secondary node optimizes network scheduling or controls the transmission power according to this information.

[0111] Optionally, the network device is the secondary node of the terminal, and the method further includes transmitting third information to the master node of the terminal, where the third information includes at least one of the following.

[0112] (1) The amount of time offset used by the terminal in the uplink power sharing mechanism.

[0113] (2) The maximum preparation time of the terminal in the SCG.

[0114] (3) The PUSCH preparation time of the terminal in the SCG.

[0115] (4) It is the CSI preparation time of the terminal in the SCG.

[0116] (5) It is the PUSCH preparation time when the PUSCH of the terminal in the SCG is multiplexed with the PUCC H and and / or PUSCH.

[0117] (6) It is the CSI preparation time when the PUSCH or PUCCH for the terminal to transmit CSI on the SCG is multiplexed with another PUCCH or PUSCH.

[0118] (7) It is the SPS PDSCH release preparation time when the PUSCH or PUCCH for the terminal to transmit the SPS PDSCH release on the SCG is multiplexed with another PUCCH and / or PUSCH.

[0119] (8) It is a seventh parameter, and the seventh parameter is used for the terminal to calculate one or more of the PUSCH preparation time or CSI preparation time of the SCG and the PUSCH preparation time, CSI preparation time or SPS PDSCH release preparation time when the PUCCH or PUSCH of the SCG is multiplexed with another PUCCH and / or PUSCH.

[0120] It can be understood that the seventh parameter is not limited to one and may be multiple.

[0121] (9) It is an eighth parameter for the secondary node to obtain the configuration information of the physical downlink control channel of the terminal in the SCG.

[0122] It can be understood that the eighth parameter is not limited to one and may be multiple.

[0123] In an embodiment of the present invention, the master node and / or secondary node of the terminal performs transmission control based on the power allocation status reported by the terminal, for example, controls the power for uplink transmission in MCG or SCG, optimizes network scheduling, etc., to improve the uplink transmission quality in MCG or SCG.

[0124] The following introduces by combining Example 1, Example 2, Example 3 and Example 4.

[0125] Example 1 Step 1, the MN transmits the MCG configuration to the UE on MCG Signaling Radio Bearers (SRB) 1.

[0126] Step 2, when the UE receives the MCG configuration, based on the configuration parameters in the MCG configuration and the parameter values agreed upon by some protocols,

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Number

[0127] Step 3, the SN transmits the SCG configuration to the UE via SRB3.

[0128] Step 4, when the UE receives the SCG configuration, based on the configuration parameters in the SCG configuration and the parameter values agreed upon by some protocols,

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Number

[0129] Step 5, the UE

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[0130] Step 6, the UE sends information A including T_offset to the MN.

[0131] Step 7, the MN performs network scheduling based on T_offset.

[0132] Step 8, optionally, the UE sends information B including T_offset to the SN.

[0133] For example, the information B may be sent via the MCG SRB1 or SRB3.

[0134] Step 9, the SN performs network scheduling based on T_offset.

[0135] It can be understood that the above information A and information B correspond to the first information.

[0136] Embodiment 2 Step 1, the MN sends the MCG configuration to the UE via the MCG SRB1.

[0137] Step 2, when the UE receives the MCG configuration, based on the configuration parameters in the MCG configuration and the parameter values agreed upon by some protocols

Number

Number

[0138] Step 3, the SN sends the SCG configuration to the UE via the SRB3.

[0139] Step 4. When the UE receives the SCG configuration, based on the configuration parameters in the SCG configuration and the parameter values agreed upon by some protocols,

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[0140] Step 5. The UE

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[0141] Step 6. The UE sends information A to the MN. This information A

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Number

[0142] Step 7. The MN performs network scheduling based on the information A.

[0143] Step 8. The UE sends information B to the SN. This information B

Number

Number

[0144] Step 9. The SN performs network scheduling based on the information B.

[0145] It can be understood that the above information A and information B correspond to the first information.

[0146] Example 3 Step 1, the UE sends information A to the MN.

[0147] Optionally, this information A includes

Number

Number

Number

[0148] Step 2, the MN sends information B to the SN.

[0149] Optionally, this information B is T_offset,

Number

Number

[0150] Optionally, the PDCCH configuration information (1) the PDCCH configuration information of the serving cell in the serving cell configuration (UE dedicated), and (2) the PDCCH common configuration information in the common configuration of the downlink bandwidth part, and (3) includes one of the PDCCH configuration information in the downlink bandwidth part configuration.

[0151] Step 3: The SN obtains the MCG PDCCH configuration in Information B, knows that the UE has received one MCG uplink transmission on the MCG PDCCH before T0 - T_offset, and this transmission overlaps with the SCG uplink transmission at time T0. Based on the dual - connection power sharing mechanism, the uplink transmission power of the UE in the SCG is reduced.

[0152] If there is no uplink transmission on the MCG for a relatively long time after T0 - T_offset, the SN can reschedule the UE to perform the transmission with the maximum uplink power during this subsequent period, thus avoiding performing low - power transmission at time T0.

[0153] It can be understood that the above Information A and Information B correspond to the first information.

[0154] Embodiment 4 Step 1: The MN sends the MCG configuration to the UE via the MCG SRB1.

[0155] Step 2: When the UE receives the MCG configuration, based on the configuration parameters in the MCG configuration and the parameter values agreed upon by some protocols,

Number

Number

[0156] Step 3: The SN sends the SCG configuration to the UE via the SRB3.

[0157] Step 4: When the UE receives the SCG configuration, based on the configuration parameters in it and the parameter values agreed upon by some protocols,

Number

Number

[0158] Step 5, the UE

Number

[0159] Step 6, the UE sends information A to the MN. Information A includes at least one of the

Number

[0160] Step 7, the MN performs network scheduling based on the information A .

[0161] Step 8, the UE sends information B to the SN. Information B includes at least one of the

Number

[0162] Step 9, the SN performs network scheduling based on the information B.

[0163] It can be understood that the above information A and information B correspond to the first information.

[0164] Referring to FIG. 4, an embodiment of the present invention further provides a terminal. This terminal 400 Including a first transmission module 401 for transmitting first information, the first information is used by the master node and / or secondary node of the terminal to perform transmission control based on the first information by notifying the power control parameters used by the terminal in the dual connection uplink link power sharing mechanism to the master node and / or secondary node of the terminal.

[0165] In some implementations, the first transmission module 401 may directly transmit the first information to the master node, or the first transmission module 401 may transmit the first information to the secondary node via the master node.

[0166] In some implementations, the terminal transmits the first information by one of (a) terminal assistance information, (b) RRC reconfiguration complete message, (c) terminal capabilities, (d) RRC connection recovery complete message, and (e) RRC connection establishment complete message.

[0167] In some embodiments, the first information is (1) The amount of time offset used in the uplink link power sharing mechanism, and (2) The maximum preparation time of the terminal in the MCG, and (3) The maximum preparation time of the terminal in the SCG, and (4) A first set of parameters for calculating the maximum preparation time of the MCG, and (5) A second set of parameters for calculating the maximum preparation time of the SCG, and may include at least one of them.

[0168] Optionally, the first set of parameters includes at least one of the following.

[0169] (1) The PUSCH preparation time of the terminal in the MCG.

[0170] It can be understood that the PUSCH preparation time is the time from when the terminal receives the last symbol of the PDCCH that schedules the PUSCH until the UE starts to transmit the PUSCH.

[0171] (2) It is the CSI preparation time of the terminal in the MCG.

[0172] (3) It is the PUSCH preparation time when the PUSCH of the terminal in the MCG is multiplexed with the PUCCH and / or another PUSCH.

[0173] (4) It is the CSI preparation time when the PUSCH or PUCCH through which the terminal transmits CSI on the MCG is multiplexed with another PUCCH or PUSCH.

[0174] (5) It is the SPS PDSCH release preparation time when the PUSCH or PUCCH through which the terminal transmits the SPS PDSCH release on the MCG is multiplexed with another PUCCH and / or PUSCH.

[0175] (6) It is a third parameter, and the third parameter is used for the terminal to calculate one or more of the PUSCH preparation time of the MCG or the CSI preparation time of the MCG, and the PUSCH preparation time, CSI preparation time, or SPS PDSCH release preparation time when the PUCCH or PUSCH of the MCG is multiplexed with another PUCCH and / or PUSCH.

[0176] It can be understood that the third parameter is not limited to one, and may be multiple.

[0177] Optionally, the second parameter set is (1) the PUSCH preparation time of the terminal in the SCG, and (2) the CSI preparation time of the terminal in the SCG, and (3) The PUSCH preparation time when the PUSCH of the terminal in the SCG is multiplexed with the PUCCH and / or another PUSCH, (4) The CSI preparation time when the PUSCH or PUCCH for the terminal to transmit CSI on the SCG is multiplexed with another PUCCH or PUSCH, (5) The SPS PDSCH release preparation time when the PUSCH or PUCCH for the terminal to transmit the SPS PDSCH release on the SCG is multiplexed with another PUCCH and / or PUSCH, (6) Including at least one of the fourth parameter, and the fourth parameter is that the terminal the PUSCH preparation time or CSI preparation time of the SCG, is used to calculate one or more of the PUSCH preparation time, CSI preparation time or SPS PDSCH release preparation time when the PUCCH or PUSCH of the SCG is multiplexed with another PUCCH and / or PUSCH.

[0178] It can be understood that the fourth parameter is not limited to one, but may be multiple.

[0179] The terminal according to the embodiment of the present invention can execute the embodiment of the method shown in FIG. 2 above, and its realization principle and technical effect are similar, and this embodiment will not be described in more detail here.

[0180] Referring to FIG. 5, the embodiment of the present invention further provides a network device. This network device 500 includes a receiving module 501 and a control module 502.

[0181] The receiving module 501 is used to receive, from the terminal, first information for notifying the master node and / or secondary node of the terminal of the power control parameters used by the terminal in the dual-connection uplink link power sharing mechanism.

[0182] For example, the network device is a secondary node of the terminal, and the receiving module 501 may receive at least a part of the content in the first information from the terminal via the master node.

[0183] The control module 502 is used to perform transmission control on the terminal based on the first information.

[0184] Optionally, performing transmission control on the terminal as described above includes at least one of the following.

[0185] (1) Controlling the uplink transmission power of the terminal in the master cell group, For example, controlling the uplink transmission power of the terminal in any one serving cell of the master cell group.

[0186] (2) Controlling the uplink transmission power of the terminal in the secondary cell group, For example, controlling the uplink transmission power of the terminal in any one serving cell of the secondary cell group.

[0187] (3) Optimizing network scheduling, For example, adjusting the uplink transmission position of the terminal in the master cell group, or scheduling the terminal to perform uplink transmission at an appropriate time, or controlling the terminal to perform uplink transmission preferentially or deferentially.

[0188] Optionally, the network device 500 is the master node of the terminal, and the network device 500 further includes a second transmission module for transmitting second information to the secondary node of the terminal, and the second information includes at least one of the following.

[0189] (1) The time offset amount used in the uplink power sharing mechanism described above.

[0190] (2) The maximum preparation time of the terminal in MCG.

[0191] (3) The PUSCH preparation time of the terminal in the MCG.

[0192] (4) The CSI preparation time of the terminal in the MCG.

[0193] (5) The PUSCH preparation time when the PUSCH of the terminal in the MCG is multiplexed with PUCCH and / or another PUSCH.

[0194] (6) The CSI preparation time when the PUSCH or PUCCH for the terminal to transmit CSI on the MCG is multiplexed with other PUCCH and / or PUSCH.

[0195] (7) The SPS PDSCH release preparation time when the PUSCH or PUCCH for the terminal to transmit SPS PDSCH release on the MCG is multiplexed with other PUCCH and / or PUSCH.

[0196] (8) The fifth parameter, where the fifth parameter is used for the terminal to calculate one or more of the PUSCH preparation time or CSI preparation time of the MCG and the PUSCH preparation time, CSI preparation time, or SPS PDSCH release preparation time when the PUCCH or PUSCH of the MCG is multiplexed with other PUCCH and / or PUSCH.

[0197] It can be understood that the fifth parameter is not limited to one, and may be multiple.

[0198] (9) The sixth parameter for the secondary node to obtain the allocation information of the physical downlink control channel of the terminal in the MCG.

[0199] It can be understood that the sixth parameter is not limited to one, but may be multiple.

[0200] Optionally, the network device 500 is the secondary node of the terminal, and the network device 500 further includes a third transmission module for transmitting third information to the master node of the terminal, and the third information includes at least one of the following.

[0201] (1) The amount of time offset used by the terminal in the uplink power sharing mechanism.

[0202] (2) The maximum preparation time of the terminal in the SCG.

[0203] (3) The PUSCH preparation time of the terminal in the SCG.

[0204] (4) The CSI preparation time of the terminal in the SCG.

[0205] (5) The PUSCH preparation time when the PUSCH of the terminal in the SCG is multiplexed with the PUCC H and and / or PUSCH.

[0206] (6) The CSI preparation time when the PUSCH or PUCCH for the terminal to transmit CSI on the SCG is multiplexed with other PUCCH or PUSCH.

[0207] (7) The SPS PDSCH release preparation time when the PUSCH or PUCCH for the terminal to transmit the SPS PDSCH release on the SCG is multiplexed with other PUCCH and / or PUSCH.

[0208] (8) The seventh parameter, wherein the seventh parameter is used for the terminal to calculate one or more of the PUSCH preparation time or CSI preparation time of the SCG and the PUSCH preparation time, CSI preparation time, or SPS PDSCH release preparation time when the PUCCH or PUSCH of the SCG is multiplexed with other PUCCH and / or PUSCH.

[0209] It can be understood that the seventh parameter is not limited to one, and may be plural.

[0210] (9) The eighth parameter for the secondary node to obtain the configuration information of the physical downlink control channel of the terminal in the SCG.

[0211] It can be understood that the eighth parameter is not limited to one, and may be plural.

[0212] The network device according to the embodiment of the present invention can execute the method embodiment shown in FIG. 3 above, and its realization principle and technical effect are similar, and this embodiment will not be described in more detail here.

[0213] Referring to FIG. 6, FIG. 6 is a structural diagram of a communication device to which the embodiment of the present invention is applied. As shown in FIG. 6, the communication device 600 includes a processor 601, a transceiver 602, a memory 603, and a bus interface, among which In one embodiment of the present invention, the communication device 600 further includes a computer program stored in the memory 603 and executable on the processor 601. When the computer program is executed by the processor 601, it realizes the steps in the embodiment shown in FIG. 2 or FIG. 3.

[0214] In FIG. 6, the bus architecture may include any number of interconnected buses and bridges, specifically, it may be linked by various circuits of one or more processors represented by processor 601 and memory represented by memory 603. The bus architecture may also link various other circuits such as peripheral devices, voltage regulators, and power management circuits. Since all of them are well known in the art, they will not be further described in this specification. The bus interface provides an interface. The transceiver 602 may be a plurality of elements, that is, it may include a transmitter and a receiver and provide a unit for communicating with various other devices via a transmission medium. It can be understood that the transceiver 602 is an optional component.

[0215] The processor 601 is in charge of the management of the bus architecture and normal processing. The memory 603 may store data used when the processor 601 executes operations.

[0216] The communication device according to an embodiment of the present invention can execute the method embodiments shown in FIG. 2 or FIG. 3 above. Its implementation principle and technical effects are similar, and this embodiment will not be further described here.

[0217] The step of associating with the method or algorithm described in the disclosure of the present invention may be implemented in a hardware manner or in a manner in which software instructions are executed by a processor. The software instructions may be composed of corresponding software modules, and the software modules may be stored in a random access memory (RAM), flash memory, read-only memory (ROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), register, hard disk, removable hard disk, read-only disk, or any other form of storage medium well known in the art. An exemplary storage medium may be coupled to a processor so that the processor can read information from and write information to this storage medium. Of course, the storage medium may be a component of the processor. The processor and the storage medium may be located in an application specific integrated circuit (ASIC). Also, this ASIC may be located in a core network interface device. Of course, the processor and the storage medium may exist in the core network interface device as discrete components.

[0218] What those skilled in the art should be aware of is that in one or more of the above examples, the functions described in the present invention may be implemented in hardware, software, firmware, or any combination thereof. When implemented using software, these functions may be stored in a computer-readable medium or transmitted as one or more instructions or codes of a computer-readable medium. The computer-readable medium includes a computer storage medium and a communication medium, where the communication medium includes any medium that facilitates the transmission of a computer program from one place to another. The storage medium may be any available medium accessible by a general-purpose or special-purpose computer.

[0219] The embodiments for carrying out the invention described above have further described the object, technical solution and beneficial effects of the present invention in more detail. However, it should be understood that what is described above is only the embodiments for carrying out the invention of the present invention, and is not for limiting the protection scope of the present invention. Modifications, equivalent substitutions, improvements, etc. made based on the technical solution of the present invention should all be included within the protection scope of the present invention.

[0220] As those skilled in the art will understand, the embodiments of the present invention can be provided as a method, a system, or a computer program product. Therefore, the embodiments of the present invention may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. And the embodiments of the present invention may also adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk memory, CD-ROM, optical memory, etc.) containing computer-usable program code.

[0221] The embodiments of the present invention are described with reference to the flowcharts and / or block diagrams of the method, apparatus (system), and computer program product according to the embodiments of the present invention. It should be understood that each flow and / or block in the flowchart and / or block diagram, as well as the combination of flows and / or blocks in the flowchart and / or block diagram, may be realized by computer program instructions. By providing these computer program instructions to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices, a machine can be generated, whereby the instructions executed by the computer or the processor of other programmable data processing devices generate a device for realizing the functions specified in one or more flows of the flowchart and / or one or more blocks of the block diagram.

[0222] These computer program instructions may be stored in a computer-readable memory that can cause a computer or other programmable data processing device to operate in a particular manner. Thereby, the instructions stored in this computer-readable memory produce a manufactured article including an instruction device. This instruction device realizes the functions specified in one flow or a plurality of flows of the flowchart and / or one block or a plurality of blocks of the block diagram.

[0223] These computer program instructions may be loaded into a computer or other programmable data processing device. Thereby, by executing a series of operation steps on the computer or other programmable device, a process implemented by the computer is generated. As a result, the instructions executed on the computer or other programmable device provide the steps of the functions specified in one flow or a plurality of flows of the flowchart and / or one block or a plurality of blocks of the block diagram.

[0224] As can be clearly understood by those skilled in the art, for the convenience and brevity of description, the specific operation processes of the systems, devices, and units described above may refer to the corresponding processes in the embodiments of the method. Here, no further explanation will be given.

[0225] In some embodiments provided by the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the embodiments of the apparatus described above are merely illustrative. For example, the division of the above-mentioned units is only a logical function division, and when actually implemented, there may be other division methods. For example, a plurality of units or components may be coupled to another system, or integrated, or some features may be ignored, or not executed. Also, the connections or direct connections or communication connections shown or considered between each other may be indirect connections or communication connections through some interfaces, devices or units, and may be electrical, mechanical, or other forms.

[0226] The units described as the separated parts may or may not be physically separated. The parts shown as units may or may not be physical units. That is, they may be located in one place, or distributed among a plurality of network units. According to actual needs, some or all of the units can be selected to achieve the purpose of the solution of this embodiment.

[0227] Also, each functional unit in each embodiment of the present disclosure may be integrated into one processing unit, each unit may physically exist alone, or two or more units may be integrated into one unit.

[0228] As is clearly understood by those skilled in the art from the description of the above embodiments, the method of the above embodiments may be implemented in the form of software and a necessary general-purpose hardware platform. Of course, it may also be implemented by hardware, but in many cases, the former is a preferred embodiment. Based on such an understanding, the technical solution of the present invention may, in essence, be represented in the form of a software product even if the part that contributes to the prior art. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes some instructions 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 invention.

[0229] As can be understood by those skilled in the art, realizing all or part of the flow in the method of the above embodiments may be completed by controlling related hardware by a computer program. The program may be stored in a computer-readable storage medium. When this program is executed, it may include a flow such as that of the above embodiments of each method. Among them, the storage medium may be a magnetic disk, optical disk, read-only memory (ROM), or random access memory (RAM), etc.

[0230] It should be understood that these embodiments described in the embodiments of the present disclosure may be implemented in hardware, software, firmware, middleware, microcode, or any combination thereof. For a hardware implementation, the modules, units, and sub-units may 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 described in the present disclosure, or any combination thereof.

[0231] For a software implementation, the techniques described in the embodiments of the present disclosure may be realized by modules (e.g., processes, functions, etc.) that execute the functions described in the embodiments of the present disclosure. The software code may be stored in a memory and executed via a processor. The memory may be implemented within the processor or externally to the processor.

[0232] Obviously, those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

1. A transmission control method used for a network device, wherein the network device is a master node of a terminal, the method includes transmitting second information to a secondary node of the terminal, and the second information includes the amount of time offset used by the terminal in an uplink power sharing mechanism, the maximum preparation time of the terminal in MCG, the PUSCH preparation time of the terminal in the MCG, the CSI preparation time of the terminal in the MCG, the PUSCH preparation time when the PUSCH of the terminal in the MCG is multiplexed with a PUCCH and / or another PUSCH, the CSI preparation time when a PUSCH or PUCCH for the terminal to transmit CSI on the MCG is multiplexed with another PUCCH and / or PUSCH, the SPS PDSCH release preparation time when a PUSCH or PUCCH for the terminal to transmit an SPS PDSCH release on the MCG is multiplexed with another PUCCH and / or PUSCH, including at least one of them and a fifth parameter, the fifth parameter is used for the terminal to calculate one or more of the PUSCH preparation time or CSI preparation time of the MCG, and the PUSCH preparation time, CSI preparation time or SPS PDSCH release preparation time when the PUCCH or PUSCH of the MCG is multiplexed with another PUCCH and / or PUSCH. A transmission control method.

2. Receiving, from the terminal, first information for notifying a power control parameter used by the terminal in a dual-connection uplink power sharing mechanism to a master node and / or a secondary node of the terminal, and further including performing transmission control on the terminal based on the first information. The transmission control method according to claim 1.

3. A network device, wherein the network device is a master node of a terminal, the network device includes a second transmission module that transmits second information to a secondary node of the terminal, and the second information includes the amount of time offset used by the terminal in an uplink power sharing mechanism, the maximum preparation time of the terminal in MCG, the PUSCH preparation time of the terminal in the MCG, the CSI preparation time of the terminal in the MCG, The PUSCH preparation time when the PUSCH of the terminal in the MCG is multiplexed with the PUCCH and / or another PUSCH, The CSI preparation time when the PUSCH or PUCCH for the terminal to transmit CSI on the MCG is multiplexed with another PUCCH and / or PUSCH, The SPS PDSCH release preparation time when the PUSCH or PUCCH for the terminal to transmit the SPS PDSCH release on the MCG is multiplexed with another PUCCH and / or PUSCH, including at least one of them and a fifth parameter, The fifth parameter is that the terminal, the PUSCH preparation time or CSI preparation time of the MCG, a network device used to calculate one or more of the PUSCH preparation time, CSI preparation time, or SPS PDSCH release preparation time when the PUCCH or PUSCH of the MCG is multiplexed with another PUCCH and / or PUSCH.

4. A receiving module that receives first information from the terminal for notifying power control parameters used by the terminal in the dual-connection uplink link power sharing mechanism to the master node and / or secondary node of the terminal, The network device according to claim 3, further including a control module that performs transmission control on the terminal based on the first information.

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