Method and apparatus for transmitting buffer data status information of secondary cell group

Abstract

The embodiment of the present disclosure provides a method and apparatus for transmitting buffer data status information of a secondary cell group. The method includes: determining that a secondary cell group SCG is in a deactivated state; and sending target information to a network device via a master cell group MCG, the target information for indicating buffer data status information of the SCG, where the target information includes one or more of a target buffer status report BSR and a target radio resource control RRC signaling. The method and apparatus for transmitting buffer data status information of a secondary cell group according to the embodiment of the present disclosure can realize a function of a terminal indicating buffer data status information of an SCG side.

Description

[Technical Field]

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS This disclosure references a Chinese patent application entitled "Method and device for transmitting buffer data status information of secondary cell group" and bearing application number 202110904391.X, filed on August 6, 2021, the entire contents of which are incorporated herein by reference.

[0002] The present disclosure relates to the technical field of communications, and more particularly to a method and apparatus for transmitting buffer data status information of a secondary cell group. [Background technology]

[0003] NR R17 introduces an SCG (Secondary Cell Group) deactivated state, where the SCG deactivated state is equivalent to an SCG dormant state, or an SCG suspended state, or a suspended state, dormant state, or deactivated state of a primary cell (PSCell: Primary SCG Cell) in a secondary cell group.

[0004] Currently, when the SCG is in a deactivated state, the terminal needs to trigger the activation of the SCG when the terminal's uplink data arrives on the SCG's Radio Link Control (RLC) bearer. So, how to enable the terminal to trigger the activation of the SCG is an issue. Summary of the Invention [Problem to be solved by the invention]

[0005] To solve the above-mentioned problems in the prior art, the embodiments of the present disclosure provide a method and apparatus for transmitting buffer data status information of a secondary cell group. [Means for solving the problem]

[0006] In a first aspect, an embodiment of the present disclosure provides a buffer data status information transmission method for a secondary cell group, the method comprising: Determining that a secondary cell group SCG is in a deactivated state; sending target information to a network device via a master cell group MCG, the target information being for indicating buffer data status information of the SCG; Here, the target information is Target Buffer Status Report (BSR); and target radio resource control (RRC) signaling.

[0007] In one embodiment, when the target information includes the target BSR, a logical channel ID LCID corresponding to the target BSR is: The LCID corresponding to the target BSR is Reserved Codepoint and / or Index parameter values wherein different LCID values ​​correspond to different target BSRs, and the formats of the BSRs corresponding to the different target BSRs are different; Here, Record B The format of the SR includes one or more of a short format, a long format, a short truncated format, and a long truncated format.

[0008] In one embodiment, when the target information includes the target BSR, the LCID corresponding to the target BSR is: The LCID corresponding to the target BSR is Reserved Codepoint and / or Index parameter values and the target BSR is Prescribed format adopted BSR Medium Access Control MAC Control Unit CE Fulfilling the need to be , The BSR MAC CE SCG index and Logical channel group LCG bitmap bitmap, LCG ID and LCID and LCID bitmap and LCID index bitmap, LCID index and LCID bitmap length indication information; LCID index length indication information; Buffer data information; and an indication of whether there are any unreported BSRs.

[0009] In one embodiment, when the target information includes the target BSR, the reserved bit of the MAC subheader corresponding to the target BSR is: If the MAC subheader includes one reserved bit, the reserved bit indicates whether the target BSR is a BSR of the SCG; and If the MAC subheader includes two reserved bits, any one of the two reserved bits indicates whether the target BSR is a BSR of the SCG; and If the MAC subheader includes two reserved bits, one of the two reserved bits indicates whether the target BSR is a BSR of the SCG, and the other indicates whether the target BSR is a BSR of the MCG; If the MAC subheader includes two reserved bits, the two reserved bits indicate an SCG index, and the SCG index is for indicating which SCG's BSR the target BSR is. Fill , Here, the format of the target BSR is any one of a short format, a long format, a short truncated format, a long truncated format, and a predetermined format.

[0010] In one embodiment, when one of the two reserved bits indicates whether the target BSR is a BSR of the SCG and the other indicates whether the target BSR is a BSR of the MCG, the MAC subheader corresponding to the target BSR is one target LCID for indicating the format of the BSR of the SCG and / or the format of the BSR of the MCG; and two target LCIDs for indicating the format of the BSR of the SCG and the format of the BSR of the MCG, respectively.

[0011] In one embodiment, when the target information includes the target RRC signaling, the target RRC signaling includes data radio bearer (DRB) identification information having data to be transmitted in an SCG, and the DRB identification information is represented in the form of a bitmap; The bitmap is All MCG IDs and all SCG IDs, DRB ID of the radio link control RLC bearer in the SCG; A DRB ID of an RLC bearer in an SCG, where the RLC bearer is not a split bearer; a DRB ID of an RLC bearer in an SCG, and if the RLC bearer is a split bearer, the RLC bearer includes only a DRB ID whose main path is in the SCG.

[0012] In one embodiment, when the target information includes the target RRC signaling, the target RRC signaling includes a DRB ID having data to be transmitted in an SCG, and the DRB ID is: the DRB ID of the RLC bearer in the SCG; A DRB ID of an RLC bearer in an SCG, where the RLC bearer is not a split bearer; a DRB ID of an RLC bearer in an SCG, and if the RLC bearer is a split bearer, the RLC bearer includes only a DRB ID whose main path is in the SCG.

[0013] In one embodiment, when the target information includes the target RRC signaling, the target RRC signaling includes logical channel identification information having data to be transmitted in an SCG, and the logical channel identification information is represented in the form of a bitmap or an LCID list; The logical channel identification information is The logical channel identification information includes a bearer, and if the bearer is a split bearer, the bearer only includes a split bearer whose main path is in the SCG; The logical channel identification information includes a bearer, and the bearer is not a split bearer; the logical channel identification information includes a bearer, and the bearer is not a split bearer whose main path is in an MCG.

[0014] In one embodiment, when the target information includes the target RRC signaling, the target RRC signaling includes logical channel group identification information having data to be transmitted in an SCG, and the logical channel group identification information is represented in the form of a bitmap or an LCG ID list.

[0015] In one embodiment, when the target information includes the target RRC signaling, the target RRC signaling includes indication information having data to be transmitted in an SCG.

[0016] In one embodiment, when the target information includes the target RRC signaling, the target RRC signaling includes size information of data to be transmitted in an SCG; Here, the size of data to be transmitted in an SCG is in units of one of per DRB, per LC, per LCG, and per SCG.

[0017] In a second aspect, an embodiment of the present disclosure provides a buffer data status information transmission method for a secondary cell group, the method comprising: When a secondary cell group (SCG) is in a deactivated state, receiving target information transmitted from the terminal via a master cell group (MCG), the target information being for indicating buffer data status information of the SCG; Here, the target information is Target Buffer Status Report (BSR); and target radio resource control (RRC) signaling.

[0018] In one embodiment, when the target information includes the target BSR, a logical channel ID LCID corresponding to the target BSR is: The LCID corresponding to the target BSR is Reserved Codepoint and / or Index parameter values wherein different LCID values ​​correspond to different target BSRs, and the formats of the BSRs corresponding to the different target BSRs are different; where one target LCID value is B Supports one SR format 、B The SR format includes any one of a short format, a long format, a short truncated format, and a long truncated format.

[0019] In one embodiment, when the target information includes the target BSR, the LCID corresponding to the target BSR is: The LCID corresponding to the target BSR is Reserved Codepoint and / or Index parameter values and the target BSR is Prescribed format adopted BSR Medium Access Control MAC Control Unit CE and the BSR MAC CE satisfies , SCG index and Logical channel group LCG bitmap bitmap, LCG ID and LCID and LCID bitmap and LCID index bitmap, LCID index and LCID bitmap length indication information; LCID index length indication information; Buffer data information; and an indication of whether there are any unreported BSRs.

[0020] In one embodiment, when the target information includes the target BSR, the reserved bit of the MAC subheader corresponding to the target BSR is: If the MAC subheader includes one reserved bit, the reserved bit indicates whether the target BSR is a BSR of the SCG; and If the MAC subheader includes two reserved bits, any one of the two reserved bits indicates whether the target BSR is a BSR of the SCG; and If the MAC subheader includes two reserved bits, one of the two reserved bits indicates whether the target BSR is a BSR of the SCG, and the other indicates whether the target BSR is a BSR of the MCG; If the MAC subheader includes two reserved bits, the two reserved bits indicate an SCG index, and the SCG index is for indicating which SCG's BSR the target BSR is. Fill , Here, the format of the target BSR is any one of a short format, a long format, a short truncated format, a long truncated format, and a predetermined format.

[0021] In one embodiment, when one of the two reserved bits indicates whether the target BSR is a BSR of the SCG and the other indicates whether the target BSR is a BSR of the MCG, the MAC subheader corresponding to the target BSR is one target LCID for indicating the format of the BSR of the SCG and / or the format of the BSR of the MCG; and two target LCIDs for indicating the format of the BSR of the SCG and the format of the BSR of the MCG, respectively.

[0022] In one embodiment, when the target information includes the target RRC signaling, the target RRC signaling includes data radio bearer (DRB) identification information having data to be transmitted in an SCG, and the DRB identification information is represented in the form of a bitmap; The bitmap is All MCG IDs and all SCG IDs, DRB ID of the radio link control RLC bearer in the SCG; A DRB ID of an RLC bearer in an SCG, where the RLC bearer is not a split bearer; a DRB ID of an RLC bearer in an SCG, and if the RLC bearer is a split bearer, the RLC bearer includes only a DRB ID whose main path is in the SCG.

[0023] In one embodiment, when the target information includes the target RRC signaling, the target RRC signaling includes a DRB ID having data to be transmitted in an SCG, and the DRB ID is: the DRB ID of the RLC bearer in the SCG; A DRB ID of an RLC bearer in an SCG, where the RLC bearer is not a split bearer; a DRB ID of an RLC bearer in an SCG, and if the RLC bearer is a split bearer, the RLC bearer includes only a DRB ID whose main path is in the SCG.

[0024] In one embodiment, when the target information includes the target RRC signaling, the target RRC signaling includes logical channel identification information having data to be transmitted in an SCG, and the logical channel identification information is represented in the form of a bitmap or an LCID list; The logical channel identification information is The logical channel identification information includes a bearer, and if the bearer is a split bearer, the bearer only includes a split bearer whose main path is in the SCG; The logical channel identification information includes a bearer, and the bearer is not a split bearer; the logical channel identification information includes a bearer, and the bearer is not a split bearer whose main path is in an MCG.

[0025] In one embodiment, when the target information includes the target RRC signaling, the target RRC signaling includes logical channel group identification information having data to be transmitted in an SCG, and the logical channel group identification information is represented in the form of a bitmap or an LCG ID list.

[0026] In one embodiment, when the target information includes the target RRC signaling, the target RRC signaling includes indication information having data to be transmitted in an SCG.

[0027] In one embodiment, when the target information includes the target RRC signaling, the target RRC signaling includes size information of data to be transmitted in an SCG; Here, the size of data to be transmitted in an SCG is in units of one of per DRB, per LC, per LCG, and per SCG.

[0028] In one embodiment, a method for transmitting buffer data status information of a secondary cell group according to an embodiment of the present disclosure includes: Based on the target information, Reconfiguring a target bearer for the MCG and / or the SCG; activating the SCG; and Here, the target bearer is for transmitting data corresponding to the buffer data status information of the SCG.

[0029] In a third aspect, an embodiment of the present disclosure provides a terminal, the terminal including: a memory; a transceiver; and a processor; The memory is for storing computer programs. a transceiver for transmitting and receiving data under control of said processor; The processor is adapted to read the computer program in the memory and implement the steps in the method for transmitting buffer data status information of a secondary cell group according to the first aspect.

[0030] In a fourth aspect, an embodiment of the present disclosure provides a network device, the network device including a memory, a transceiver, and a processor; The memory is for storing computer programs. a transceiver for transmitting and receiving data under control of said processor; The processor is adapted to read the computer program in the memory and implement the steps in the method for transmitting buffer data status information of a secondary cell group according to the second aspect.

[0031] In a fifth aspect, an embodiment of the present disclosure further provides a processor-readable storage medium having stored thereon a computer program for causing a processor to perform steps in the method for transmitting buffer data status information of a secondary cell group described in the first or second aspect. [Effects of the Invention]

[0032] The method and apparatus for transmitting buffer data status information of a secondary cell group according to an embodiment of the present disclosure realizes the function of the terminal indicating the buffer data status information of the SCG side by having the network equipment receive target information including the buffer data status information of the SCG transmitted from the terminal via the MCG side when the SCG is in a deactivated state. As a result, when the SCG is in a deactivated state, the network equipment determines and executes corresponding operations based on the buffer data status information of the SCG side reported by the terminal, thereby enabling the network equipment to smoothly report the uplink data of the SCG side, which significantly improves the stability and efficiency of communication compared with conventional technologies. [Brief explanation of the drawings]

[0033] In order to more clearly describe the embodiments of the present disclosure or the technical solutions in the prior art, the drawings necessary for describing the embodiments or the prior art will be briefly described below. Of course, the drawings in the following description are some embodiments of the present disclosure, and those skilled in the art can further obtain other drawings based on these drawings without creative work.

[0034] [Figure 1] Schematic diagram of MAC CE for long BSR and long truncated BSR. [Figure 2] 1 is a schematic diagram of the header fields of the MAC subheader. [Figure 3] This is a second schematic diagram of the header fields of the MAC subheader. [Figure 4] 1 is a first flowchart of a method for transmitting buffer data status information of a secondary cell group according to an embodiment of the present disclosure. [Figure 5] 2 is a second flowchart of a method for transmitting buffer data status information of a secondary cell group according to an embodiment of the present disclosure. [Figure 6] FIG. 1 is a schematic diagram of a network device structure according to an embodiment of the present disclosure. [Figure 7] FIG. 1 is a schematic diagram of a terminal structure according to an embodiment of the present disclosure. [Figure 8] 1 is a schematic diagram of the structure of a secondary cell group buffer data status information transmission device according to an embodiment of the present disclosure; FIG. [Figure 9] FIG. 2 is a second schematic diagram of the structure of a buffer data status information transmission device for a secondary cell group according to an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0035] The term "and / or" in the embodiments of the present disclosure describes a relation between related objects and indicates that three types of relations may exist. For example, A and / or B may indicate three cases: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally indicates that the related objects before and after it are in an "or" relation.

[0036] The term "plurality" in the embodiments of the present disclosure means two or more than two, and other quantifiers similar thereto.

[0037] Hereinafter, the technical solutions in the embodiments of the present disclosure will be clearly and completely described with reference to the drawings in the embodiments of the present disclosure. Of course, the described embodiments are only some embodiments of the present disclosure, and are not all embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present disclosure.

[0038] In order to facilitate a full understanding of the technical solutions in this disclosure, the following content is introduced.

[0039] In a multi-connection scenario, it is divided into one MCG and one or more SCGs. The cell group on the master node (MN) side is the MCG, which consists of one primary cell (PCell) and zero to multiple secondary cells (SCell). The cell group on the secondary node (SN) side is the SCG, which also consists of one PSCell and zero to multiple SCGs. The current protocol version only supports dual-connection scenarios. In the connected state, dual connectivity is set up for the terminal, and the MN and SN can simultaneously interact with the terminal for data.

[0040] Considering energy saving and quickly activating the SCG to transmit data, when the amount of data transmission is relatively small, the terminal sets the SCG side to a deactivated SCG state. In the deactivated SCG state, the terminal does not monitor the SCG side physical downlink control channel (PDCCH) and does not transmit on the physical uplink shared channel (PUSCH).

[0041] (1) Activate / Deactivate SCG An MN / SN / terminal can request activation of an SCG, and an SCG activation command triggered by the network is sent by the MN to the terminal. An MN / SN can request deactivation of an SCG, and an SCG deactivation command triggered by the network is sent by the MN to the terminal. In the SCG activation / deactivation process, interaction between the terminal / MN and the MN / SN is performed using Radio Resource Control (RRC) signaling.

[0042] (2)BSR The BSR process provides the serving gNB (5G base station) with the uplink data volume at the MAC entity.

[0043] Each logical channel is assigned to one logical channel group (LCG), and the maximum number of LCGs is 8. Based on the data amount calculation process, the MAC entity determines the uplink data amount of one logical channel.

[0044] BSR reporting formats are divided into long BSR, short BSR, short truncated BSR, and long truncated BSR. Different reporting formats are selected depending on the number of LCGs with transmittable data, the number of padding bits, etc. Here, different BSR formats are distinguished by different logical channel IDs (LCIDs) in the MAC sub-PDU (sub-protocol data unit) header.

[0045] The BSR report uses LCG as a granularity and reports the size of data to be transmitted by the LCG to the network side. Taking the MAC control unit (CE: Control Element) of long BSR and long truncated BSR as an example, as shown in Figure 1, each LCGi indicates whether the data buffer size (Buffer Size) to be transmitted in the i-th LCG is reported or not, LCGi=1 indicates that the Buffer Size field of this LCG is reported, LCGi=0 indicates that the Buffer Size field of this LCG is not reported, and i ranges from 0 to 7, that is, there are 8 LCGs.

[0046] (3) MAC Protocol Data Unit (PDU) One MAC PDU includes one or more MAC subPDUs, each of which has the following structure: a MAC subheader including padding; a MAC subheader and a MAC service data unit (SDU); a MAC subheader and a MAC CE; It consists of one of a MAC subheader and padding.

[0047] The size of the MAC SDU varies, and each MAC subheader corresponds to a MAC SDU, a MAC CE, or padding.

[0048] Except for the MAC SDU containing a fixed-size MAC CE, padding, and an uplink Common Control Channel (CCCH), one MAC subheader consists of a header field R / F / LCID / (eLCID) / L, where L is 8 bits, as shown in Figure 2.

[0049] The MAC subheader used for a MAC SDU containing a fixed size MAC CE, padding, and uplink CCCH consists of two header fields R / LCID / (eLCID), one of whose formats is shown in FIG.

[0050] Explanation of each field: LCID: for each DL-SCH (Downlink Synchronization Channel) and UL-SCH (Uplink Synchronization Channel), it is the corresponding MAC SDU logical channel instance or the corresponding MAC CE type or padding; eLCID: extended LCID, L: the length (in bytes) of the corresponding MAC SDU or variable-size MAC CE; F: The size of the length field, R: Reserved bit, set to 0.

[0051] The LCID values ​​for UL-SCH are shown in the table below.

[0052] [Table 1]

[0053] The embodiments of the present disclosure provide a method and apparatus for transmitting buffer data status information of a secondary cell group to solve the problem that a terminal cannot indicate buffer data status information of an SCG side in the conventional technology.

[0054] Here, the method and the apparatus are based on the concept of the same application, and the principles of solving the problems of the method and the apparatus are similar, so the implementations of the apparatus and the method can refer to each other, and the overlapping points will not be described.

[0055] 4 is a flowchart illustrating a method for transmitting buffer data status information of a secondary cell group according to an embodiment of the present disclosure, which is part 1. Referring to FIG. 4, the method for transmitting buffer data status information of a secondary cell group according to an embodiment of the present disclosure includes the following step 410.

[0056] In step 410, if the SCG is in a deactivated state, receive target information sent from the terminal via the MCG, the target information being for indicating buffer data status information of the SCG; Here, the target information is Target BSR and and target signaling.

[0057] The SCG buffer data status information is used to characterize the arrival of data at the SCG side and the contents of the data.

[0058] In addition, the execution body of the method for transmitting buffer data status information of a secondary cell group according to the embodiment of the present disclosure may be a network device, for example, a base station.

[0059] When the SCG is in a deactivated state, for example, in a scenario where uplink data of the terminal arrives on an RLC bearer of the SCG, the terminal transmits target information to the network equipment via the MCG.

[0060] After receiving the target information sent from the terminal via the MCG, the network equipment analyzes the target information to obtain the buffer data status information of the SCG contained in the target information, determines that there is uplink data that needs to be reported in the SCG at this time, and reports the uplink data on the SCG side to the network equipment by performing corresponding operations.

[0061] Here, the target information may include a target BSR and a target RRC signaling. The target BSR may refer to a BSR that the terminal sends to the network device via the MCG, and the target RRC may refer to an RRC that the terminal sends to the network device via the MCG.

[0062] The method for transmitting buffer data status information of a secondary cell group according to an embodiment of the present disclosure realizes the function of the terminal indicating the buffer data status information of the SCG side by having the network equipment receive target information including the buffer data status information of the SCG transmitted from the terminal via the MCG side when the SCG is in a deactivated state. As a result, when the SCG is in a deactivated state, the network equipment determines and executes a corresponding operation based on the buffer data status information of the SCG side reported by the terminal, thereby enabling the network equipment to smoothly report the uplink data of the SCG side, which significantly improves the stability and efficiency of communication compared with conventional technologies.

[0063] In one embodiment, if the target information includes a target BSR, the LCID in the MAC subPDU header where the BSR MAC CE corresponding to the target BSR is located is: The LCID corresponding to the target BSR is Reserved Codepoint and / or Index parameter values wherein different LCID values ​​correspond to different target BSRs, and the formats of the BSRs corresponding to the different target BSRs are different; where 、B The format of the SR may include one or more of a short format, a long format, a short truncated format, and a long truncated format.

[0064] The parameter values ​​of the reserved codepoint and / or index may be the parameter values ​​of the reserved codepoint and / or index in the LCID, or the parameter values ​​of the reserved codepoint and / or index in the eLCID, or may be the parameter values ​​of the preset codepoint and / or index other than the above two types.

[0065] For example, the reserved Codepoint and / or Index parameter values ​​may be the reserved Codepoint and / or Index parameter values ​​of 35 to 44 in the LCID, or the reserved Codepoint parameter values ​​of 0 to 249 and / or Index parameter values ​​of 64 to 313 in the eLCID, or the reserved Codepoint parameter values ​​of 0 to (216-1) and / or Index parameter values ​​of 320 to (216+319) in the eLCID.

[0066] The values ​​of the Codepoint parameter and the Index parameter may be the same or different. For example, the Codepoint parameter and the Index parameter in the LCID are the same, while the Codepoint parameter and the Index parameter in the eLCID are different.

[0067] for example, 1a. Any four of the reserved Codepoint and / or Index parameters from 35 to 44 are assigned to four target LCID values, respectively, and the four target LCID values ​​correspond to the SCG's short format BSR, long format BSR, short truncated format BSR, and long truncated format BSR, respectively.

[0068] For example, index 35 may be used to indicate a first target LCID value corresponding to a BSR in the short truncated format of the SCG, index 36 may be used to indicate a second target LCID value corresponding to a BSR in the long truncated format of the SCG, index 37 may be used to indicate a third target LCID value corresponding to a BSR in the short format of the SCG, and index 38 may be used to indicate a fourth target LCID value corresponding to a BSR in the long format of the SCG.

[0069] If the value of the LCID corresponds to index 35, after receiving the target BSR, the network device can determine that the target BSR is a BSR of the short truncated format of the SCG. Then, the network device reads the information in the target BSR to know which LCG has data to be transmitted, and thereby determines which SCG bearer has data to be transmitted.

[0070] 1b. Any four of the reserved Codepoint parameters from 0 to 249 and / or Index parameters from 64 to 313 are assigned to four target LCID values, respectively, and the four target LCID values ​​correspond to the SCG's short format BSR, long format BSR, short truncated format BSR, and long truncated format BSR, respectively.

[0071] For example, index 65 may be used to indicate a first target LCID value corresponding to a BSR in the short truncated format of the SCG, index 66 may be used to indicate a second target LCID value corresponding to a BSR in the long truncated format of the SCG, index 67 may be used to indicate a third target LCID value corresponding to a BSR in the short format of the SCG, and index 68 may be used to indicate a fourth target LCID value corresponding to a BSR in the long format of the SCG.

[0072] If the value of the LCID corresponds to index 65, after receiving the target BSR, the network device can determine that the target BSR is a BSR of the short truncated format of the SCG. Then, the network device reads the information in the target BSR to know which LCG has data to be transmitted, and thereby determines which SCG bearer has data to be transmitted.

[0073] 1c. The four preset Codepoint and / or Index parameter values ​​correspond to four target LCID values, respectively, and the four target LCID values ​​correspond to the SCG short format BSR, long format BSR, short truncated format BSR, and long truncated format BSR, respectively.

[0074] For example, a first preset Codepoint and / or Index parameter value may be used to indicate a first target LCID value corresponding to the BSR of the short truncated format of the SCG, a second preset Codepoint and / or Index parameter value may be used to indicate a second target LCID value corresponding to the BSR of the long truncated format of the SCG, a third preset Codepoint and / or Index parameter value may be used to indicate a third target LCID value corresponding to the BSR of the short format of the SCG, and a fourth preset Codepoint and / or Index parameter value may be used to indicate a fourth target LCID value corresponding to the BSR of the long format of the SCG.

[0075] If the value of LCID corresponds to the parameter value of the first preset Codepoint and / or Index, after receiving the target BSR, the network device can determine that the target BSR is a BSR of the short truncated format of the SCG, and then read the information in the target BSR to know which LCG has data to be transmitted, thereby determining which SCG bearer has data to be transmitted.

[0076] 2a. Any two of the reserved Codepoint and / or Index parameters from 35 to 44 may correspond to two target LCID values, respectively, and the two target LCID values ​​may correspond to any two formats of the BSR of the SCG. For example, the two target LCID values ​​may correspond to the BSR of the short format and the BSR of the long format of the SCG, respectively. Specifically, index 35 may be used to indicate a first target LCID value corresponding to the BSR of the short format of the SCG, and index 36 may be used to indicate a second target LCID value corresponding to the BSR of the long format of the SCG.

[0077] If the value of the LCID corresponds to index 35, after receiving the target BSR, the network device can determine that the target BSR is a short-format BSR of the SCG. Then, the network device reads the information in the target BSR to know which LCG has data to be transmitted, and thereby determines which SCG bearer has data to be transmitted.

[0078] 2b, any two of the reserved Codepoint parameters from 0 to 249 and / or Index parameters from 64 to 313 correspond to two target LCID values, respectively, and the two target LCID values ​​may correspond to any two formats of the BSR of the SCG. For example, the two target LCID values ​​may correspond to the BSR of the short format and the BSR of the long format of the SCG, respectively. Specifically, index 65 may be used to indicate a first target LCID value corresponding to the BSR of the short format of the SCG, and index 66 may be used to indicate a second target LCID value corresponding to the BSR of the long format of the SCG.

[0079] If the value of the LCID corresponds to index 65, after receiving the target BSR, the network device can determine that the target BSR is a short-format BSR of the SCG. Then, the network device reads the information in the target BSR to know which LCG has data to be transmitted, and thereby determines which SCG bearer has data to be transmitted.

[0080] 2c. Two preset Codepoint and / or Index parameter values ​​correspond to two target LCID values, respectively, and the two target LCID values ​​can correspond to any two formats of the BSR of the SCG. For example, the two target LCID values ​​can correspond to the short format BSR and the long format BSR of the SCG, respectively.

[0081] For example, a first preset Codepoint and / or Index parameter value may be used to indicate a first target LCID value corresponding to a BSR in the short format of the SCG, and a second preset Codepoint and / or Index parameter value may be used to indicate a second target LCID value corresponding to a BSR in the long format of the SCG.

[0082] If the value of LCID corresponds to the parameter value of the first preset Codepoint and / or Index, after receiving the target BSR, the network device can determine that the target BSR is a short-format BSR of the SCG. Then, the network device reads the information in the target BSR to know which LCG has data to be transmitted, and thereby determines which SCG bearer has data to be transmitted.

[0083] 3a, any one of the reserved Codepoint and / or Index parameters 35 to 44 corresponds to one target LCID value, and this one target LCID value may be any one of four formats of the BSR of the SCG. For example, if the BSR of the short format of the SCG is defined as 0, the BSR of the long format is defined as 1, the BSR of the short truncated format is defined as 2, and the BSR of the long truncated format is defined as 3, when a target LCID value corresponding to any one of them is marked as 3, it indicates that the target LCID value corresponds to the BSR of the long truncated format of the SCG, when a target LCID value corresponding to any one of them is marked as 0, it indicates that the target LCID value corresponds to the BSR of the short format of the SCG, etc.

[0084] For example, index 37 may be used to indicate the target LCID value, and assume that the target LCID value is 3. If the LCID value corresponds to index 37, after receiving the target BSR, the network device can determine that the target BSR is a long truncated format BSR of the SCG. Then, the network device reads the information in the target BSR to know which LCG has data to be transmitted, and thereby determines which SCG bearer has data to be transmitted.

[0085] 3b. Any one of the reserved Codepoint parameters from 0 to 249 and / or Index parameters from 64 to 313 corresponds to one target LCID value, and this one target LCID value may be any one of four formats of the BSR of the SCG. For example, if the BSR of the short format of the SCG is defined as 0, the BSR of the long format is defined as 1, the BSR of the short truncated format is defined as 2, and the BSR of the long truncated format is defined as 3, when a target LCID value corresponding to any one of them is marked as 3, it indicates that the target LCID value corresponds to the BSR of the long truncated format of the SCG, when a target LCID value corresponding to any one of them is marked as 0, it indicates that the target LCID value corresponds to the BSR of the short format of the SCG, etc.

[0086] For example, index 37 or index 67 may be used to indicate the target LCID value, and assuming the target LCID value is 3, the target LCID value corresponds to the BSR of the long truncated format of the SCG.

[0087] If the value of LCID corresponds to index 37 or index 67, after receiving the target BSR, the network device can determine that the target BSR is a long truncated format BSR of the SCG, and then read the information in the target BSR to know which LCG has data to be transmitted, thereby determining which SCG bearer has data to be transmitted.

[0088] 3c. A preset parameter value of one Codepoint and / or Index corresponds to a target LCID value, and this target LCID value may be any one of four formats of the BSR of the SCG. For example, if the BSR of the short format of the SCG is defined as 0, the BSR of the long format is defined as 1, the BSR of the short truncated format is defined as 2, and the BSR of the long truncated format is defined as 3, when a target LCID value corresponding to any one of them is marked as 3, it indicates that the target LCID value corresponds to the BSR of the long truncated format of the SCG; when a target LCID value corresponding to any one of them is marked as 0, it indicates that the target LCID value corresponds to the BSR of the short format of the SCG, etc.

[0089] If the LCID value corresponds to the preset Codepoint and / or Index parameter value, after receiving the target BSR, the network device can determine which format of the SCG the target BSR is based on the preset Codepoint and / or Index parameter value. Then, the network device reads the information in the target BSR to know which LCG has the data to be transmitted, and thereby determines which SCG bearer has the data to be transmitted.

[0090] In one embodiment, if the target information includes a target BSR, the LCID corresponding to the target BSR is: The LCID corresponding to the target BSR is Reserved Codepoint and / or Index parameter values Use target BSR Prescribed format The BSR MAC CE may be a BSR MAC CE that employs the above. The BSR MAC CE may include one or more of the following 1 to 11: 1. SCG index, which indicates which SCG's BSR the target BSR is. 2. LCG bitmap, which indicates that there is data to be transmitted in the SCG, where 1 bit represents 1 LCG. 3. LCG ID, which indicates that the SCG has data to be transmitted. 4. LCID, which indicates that the SCG has data to be transmitted. 5. LCID bitmap, which indicates that there is data to be transmitted in the SCG, where 1 bit represents 1 LC. 6. LCID index bitmap, where LCID index is for identifying the corresponding LCID. For example, if only LCID / drbIDs 5 / 6 / 7 / 8 / 9 / 31 are associated with Data Radio Bearers (DRBs) or RLC bearers for uplink transmission in an SCG, they are sorted and encoded in a preset order, for example, in the order of LCID size, where index=0 corresponds to LCID5, index=1 corresponds to LCID6, index=2 corresponds to LCID7, index=3 corresponds to LCID8, index=4 corresponds to LCID9, and index=5 corresponds to LCID31. That is, the first 6 bits of the 8 bits of the bitmap indicate LCID5 / 6 / 7 / 8 / 9 / 31, respectively, and the last 2 bits may be null or 0, and then correspond to the buffer size of each LCID having data to be transmitted. 7. LCID index, where LCID index is for identifying the corresponding LCID. For example, if only LCID / drbIDs 5 / 6 / 7 / 8 / 9 / 31 in an SCG are associated with DRB or RLC bearers for uplink transmission, they will be sorted and coded in a preset order, for example, in the order of LCID size, where index=0 corresponds to LCID5, index=1 corresponds to LCID6, index=2 corresponds to LCID7, index=3 corresponds to LCID8, index=4 corresponds to LCID9, and index=5 corresponds to LCID31, and indexes 0, 1, 2, 3, 4, and 5 are recorded. 8. LCID bitmap length indication information, where the indication information indicates the length of the LCID bitmap, for example, the length of the LCID bitmap may be 8 bits, 16 bits, 32 bits, etc., where the length of the LCID bitmap includes the LCs associated with the DRBs or RLC bearers of uplink transmission in order, and the extra bits are set to 0. 9. LCID index length indication information, where the indication information indicates the length of the LCID index, for example, the length of the LCID index may be 3 bits, 4 bits, 5 bits, etc., where the length includes the logical channels associated with the DRB or RLC bearer of uplink transmission in order, and the extra bits are set to 0. 10. Buffer data information, which indicates how much buffer data is available, where the amount of buffer data may be in units of LCG or LC. 11. Indication information of whether there is an unreported BSR, which is for indicating whether there is an unreported BSR in the current SCG.

[0091] For example, index 66 may be used to indicate the target LCID value corresponding to the BSR in a predetermined format of the SCG.

[0092] If the value of LCID corresponds to index 66, after receiving the target BSR, the network device can determine that the target BSR is a BSR of a predetermined format of the SCG. Then, the network device reads the information in the target BSR to obtain information such as the SCG index, LCG, LC, buffer data, etc., to determine which SCG bearer has data to be transmitted.

[0093] In one embodiment, if the target information includes a target BSR, the reserved bits in the MAC subheader corresponding to the target BSR are set to any one of the following 1 to 4: satisfy .

[0094] 1. If the MAC subheader contains one reserved bit, the reserved bit indicates whether the target BSR is the BSR of the SCG.

[0095] For example, if the reserved bit R in the MAC subheader of the MAC sub-PDU in which the BSR MAC CE is located is 1, it may indicate that the target BSR is the BSR of the SCG, and if the reserved bit R is 0, it may indicate that the target BSR is not the BSR of the SCG.

[0096] Alternatively, when the reserved bit R is 0, it may indicate that the target BSR is the BSR of the SCG, and when the reserved bit R is 1, it may indicate that the target BSR is not the BSR of the SCG.

[0097] After receiving the target BSR, the network device can determine whether the target BSR is the BSR of the SCG according to the value of the reserved bit in the MAC subheader corresponding to the target BSR, and then read the information in the target BSR to know which LCG has data to be transmitted, thereby determining which SCG bearer has data to be transmitted.

[0098] 2. If the MAC subheader includes two reserved bits, any one of the two reserved bits indicates whether the target BSR is the BSR of the SCG.

[0099] For example, if the first reserved bit R indicating the BSR of the SCG in the MAC sub-header of the MAC sub-PDU in which the BSR MAC CE is located is 1, it may indicate that the target BSR is the BSR of the SCG, and if the first reserved bit R is 0, it may indicate that the target BSR is not the BSR of the SCG.

[0100] Alternatively, if the first reserved bit R is 0, it may indicate that the target BSR is the BSR of the SCG, and if the first reserved bit R is 1, it may indicate that the target BSR is not the BSR of the SCG.

[0101] After receiving the target BSR, the network device can determine whether the target BSR is the BSR of the SCG according to the value of the first reserved bit in the MAC subheader corresponding to the target BSR, and then read the information in the target BSR to know which LCG has data to be transmitted, thereby determining which SCG bearer has data to be transmitted.

[0102] 3. If the MAC subheader includes two reserved bits, one of the two reserved bits indicates whether the target BSR is the BSR of the SCG, and the other indicates whether the target BSR is the BSR of the MCG.

[0103] In this case, the MAC subheader corresponding to the target BSR is one target LCID for indicating the format of the SCG BSR and / or the format of the MCG BSR; and two target LCIDs for indicating the format of the BSR of the SCG and the format of the BSR of the MCG, respectively.

[0104] For example, if the first reserved bit R indicating the BSR of the SCG in the MAC sub-header of the MAC sub-PDU in which the BSR MAC CE is located is 1 and the second reserved bit R indicating the BSR of the MCG is also 1, it can be indicated that the target BSR includes both the BSR of the SCG and the BSR of the MCG. At this point, if the MAC sub-header contains only one target LCID indicating a long BSR, it indicates that both the BSR of the SCG and the BSR of the MCG are long BSRs.

[0105] If the first reserved bit R indicating the BSR of the SCG in the MAC sub-header of the MAC sub-PDU in which the BSR MAC CE is located is 1 and the second reserved bit R indicating the BSR of the MCG is also 1, it can be indicated that the target BSR includes both the BSR of the SCG and the BSR of the MCG. At this point, if the MAC sub-header includes two target LCIDs indicating that the BSR of the SCG is a long BSR and that the BSR of the MCG is a short BSR, respectively, then at this point, the BSR of the SCG is a long BSR and the BSR of the MCG is a short BSR.

[0106] After receiving the target BSR, the network device can determine whether the target BSR is the BSR of the SCG and / or the BSR of the MCG according to the values ​​of the first reserved bit and the second reserved bit in the MAC subheader corresponding to the target BSR. Then, the network device reads the information in the target BSR to know which LCG has data to be transmitted, and thereby determines which SCG bearer has data to be transmitted.

[0107] 4. If the MAC subheader includes two reserved bits, the two reserved bits indicate an SCG index to indicate which SCG's BSR the target BSR is; For example, if the values ​​of the two reserved bits R in the MAC sub-header of the MAC sub-PDU in which the BSR MAC CE is located are 01, it can indicate that the target BSR is the BSR of the SCG with index=01.

[0108] After receiving the target BSR, the network device can determine which SCG's BSR the target BSR is based on the values ​​of the two reserved bits in the MAC subheader corresponding to the target BSR. Then, the network device reads the information in the target BSR to know which LCG has data to be transmitted, and thereby determines which SCG bearer has data to be transmitted.

[0109] Here, the format of the target BSR is any one of a short format, a long format, a short truncated format, a long truncated format, and a predetermined format.

[0110] The method for transmitting buffer data status information of a secondary cell group according to an embodiment of the present disclosure can realize the function of the terminal indicating the buffer data status information of the SCG side by making corresponding settings for the related information of the BSR (such as LCID, eLCID, and reserved bits), thereby realizing low-cost and highly efficient modifications to existing networks.

[0111] In one embodiment, when the target information includes target RRC signaling, the target RRC signaling includes DRB identification information having data to be transmitted in the SCG, and the DRB identification information is represented in the form of a bitmap, where the bitmap includes any one of 1 to 4 below.

[0112] 1. All MCG IDs and all SCG IDs After receiving the target RRC signaling, the network device can determine which DRBs have data to be transmitted by reading the bitmaps of all DRBs therein.

[0113] 2. DRB ID of the RLC bearer in the SCG After receiving the target RRC signaling, the network device can determine which DRB has data to be transmitted by reading the bitmap therein that indicates the DRB ID of the RLC bearer in the SCG.

[0114] 3. DRB ID of the RLC bearer in the SCG, and the RLC bearer is not a split bearer After receiving the target RRC signaling, the network device can determine which DRB has data to be transmitted by reading the bitmap therein that indicates the DRB ID of the RLC bearer in the SCG and the DRB ID of the RLC bearer is not a split bearer.

[0115] 4. The DRB ID of the RLC bearer in the SCG, and if the RLC bearer is a split bearer, the DRB ID of the RLC bearer only includes the split bearer whose main path is in the SCG. After receiving the target RRC signaling, the network device can determine which DRB has data to be transmitted by reading the bitmap therein, which indicates the DRB ID of the RLC bearer in the SCG, and if the RLC bearer is a split bearer, the RLC bearer has data to be transmitted in by reading the bitmap indicating the DRB ID that includes only split bearers whose main path is in the SCG.

[0116] In one embodiment, when the target information includes target RRC signaling, the target RRC signaling includes a DRB ID having data to be transmitted in the SCG, and the DRB ID is any one of 1 to 3 below.

[0117] 1. DRB ID of the RLC bearer in the SCG, which can take the form of a DRB ID list, etc. After receiving the target RRC signaling, the network device can determine which DRB has data to be transmitted by reading the list information therein that indicates the DRB ID of the RLC bearer in the SCG.

[0118] 2. The DRB ID of the RLC bearer in the SCG, and if the RLC bearer is not a split bearer, the DRB ID can take the form of a DRB ID list, etc. After receiving the target RRC signaling, the network device can determine which DRB has data to be transmitted by reading the list information therein, which indicates the DRB IDs of the RLC bearers in the SCG and whose RLC bearers are not split bearers.

[0119] 3. The DRB ID of the RLC bearer in the SCG. If the RLC bearer is a split bearer, the RLC bearer only includes the split bearer whose main path is in the SCG. The DRB ID can take the form of an ID list, etc. After receiving the target RRC signaling, the network device can determine which DRB has data to be transmitted by reading the list information therein, which is the DRB ID of the RLC bearer in the SCG, and if the RLC bearer is a split bearer, the RLC bearer indicates the DRB ID that includes only the split bearer whose main path is in the SCG.

[0120] In one embodiment, when the target information includes target RRC signaling, the target RRC signaling includes logical channel identification information having data to be transmitted in an SCG, and the logical channel identification information is represented in the form of a bitmap or in the form of an LCID list; The logical channel identification information satisfies any one of the following 1 to 3.

[0121] 1. The logical channel identification information includes a bearer, and if the bearer is a split bearer, the bearer only includes the split bearer whose main path is in the SCG.

[0122] After receiving the target RRC signaling, the network device can determine which LC has data to be transmitted by reading the bitmap information or LCID list in which the logical channel identification information includes the bearer, and if the bearer is a split bearer, the bearer only includes split bearers whose main path is in the SCG, thereby determining which DRB has data to be transmitted.

[0123] 2. The logical channel identification information includes a bearer, and the bearer is not a split bearer.

[0124] After receiving the target RRC signaling, the network device can determine which LC has data to be transmitted by reading the bitmap information or LCID list therein, which indicates that the logical channel identification information includes a bearer and that the bearer is not a split bearer, and thereby determine which DRB has data to be transmitted.

[0125] 3. The logical channel identification information includes a bearer, and the bearer is not a split bearer whose main path is in the MCG.

[0126] After receiving the target RRC signaling, the network device can determine which LC has the data to be transmitted by reading the bitmap information or LCID list therein, which indicates that the logical channel identification information includes a bearer and that the bearer is not a split bearer whose main path is in the MCG, and thereby determine which DRB has the data to be transmitted.

[0127] In one embodiment, when the target information includes target RRC signaling, the target RRC signaling includes logical channel group identification information having data to be transmitted in an SCG, and the logical channel group identification information is represented in the form of a bitmap or in the form of an LCG ID list.

[0128] After receiving the target RRC signaling, the network device can determine in which LCG the data to be transmitted is located by reading the bitmap information or LCG ID list therein, which indicates the logical channel group identification information having the data to be transmitted in the SCG, and thereby determine in which DRB the data to be transmitted is located.

[0129] In one embodiment, when the target information includes target RRC signaling, the target RRC signaling includes indication information having data to be transmitted in the SCG.

[0130] After receiving the target RRC signaling, the network equipment can determine that there is data to be transmitted in the SCG by reading the indication information therein that indicates that there is data to be transmitted in the SCG.

[0131] In one embodiment, when the target information includes target RRC signaling, the target RRC signaling includes size information of data to be transmitted in the SCG; Here, the size of data to be transmitted in an SCG is in units of one of per DRB, per LC, per LCG, and per SCG.

[0132] Optionally, the target RRC signaling may include size information of the data to be transmitted in the SCG, and may further include any one of DRB information, LC information, LCG information, and indication information having the data to be transmitted in the SCG.

[0133] After receiving the target RRC signaling, the network equipment can determine the specific size information of the data to be transmitted in the SCG by reading the size information of the data to be transmitted in the SCG therein, or by reading the size information of the data to be transmitted in the SCG therein and any one of the DRB information, the LC information, the LCG information, and the indication information having the data to be transmitted in the SCG.

[0134] The method for transmitting buffer data status information of a secondary cell group according to an embodiment of the present disclosure can realize the function of a terminal indicating buffer data status information on the SCG side by making corresponding settings for related information of RRC signaling (DRB identification information, logical channel identification information, logical channel group identification information, indication information having data to be transmitted in the SCG, and size information of data to be transmitted in the SCG, etc.), thereby realizing low-cost and highly efficient modifications to existing networks.

[0135] In one embodiment, a method for transmitting buffer data status information of a secondary cell group according to an embodiment of the present disclosure includes: Based on the target information, re-establishing the target bearer to the MCG and / or SCG; activating the SCG; and Here, the target bearer is for transmitting data corresponding to the buffer data status information of the SCG.

[0136] As can be seen, after the network device reads the target information, it can determine that it has data to be transmitted in the current SCG.

[0137] Therefore, the network device reconfigures the target bearer for the MCG so that the data corresponding to the buffer data status information of the SCG is sent to the network device via the target bearer; or The network device reconfigures the target bearer for the SCG so as to transmit data corresponding to the buffer data status information of the SCG to the network device via the target bearer; or The network device simultaneously reconfigures the target bearer for the MCG and the SCG, so as to send data corresponding to the buffer data status information of the SCG to the network device via the target bearer; or The network device activates the SCG to cause the SCG to transition from a deactivated state to an activated state and transmit data corresponding to the buffered data status information of the SCG to the network device.

[0138] In the method for transmitting buffer data status information of a secondary cell group according to an embodiment of the present disclosure, the network equipment determines that there is data to be transmitted in the SCG based on the target information, and then reconfigures a target bearer for the MCG and / or SCG or activates the SCG, so as to transmit data corresponding to the buffer data status information of the SCG to the network equipment, thereby ensuring smooth communication and improving communication efficiency.

[0139] 5 is a flowchart illustrating a method for transmitting buffer data status information of a secondary cell group according to an embodiment of the present disclosure. Referring to FIG. 5, the method for transmitting buffer data status information of a secondary cell group according to an embodiment of the present disclosure may include the following steps 510 and 520.

[0140] In step 510, it is determined that the SCG is in a deactivated state.

[0141] In step 520, send target information to the network device via the MCG, where the target information is for indicating buffer data status information of the SCG.

[0142] Here, the target information is Target BSR and and target signaling.

[0143] It should be noted that the execution body of the method for transmitting buffer data status information of a secondary cell group according to the embodiment of the present disclosure may be a terminal such as a mobile phone, a computer, or the like.

[0144] For example, when the terminal's uplink data arrives on the RLC bearer of the SCG, the terminal determines whether the SCG is in a deactivated state. If the SCG is in a deactivated state, the terminal sends target information to the network device via the MCG.

[0145] After receiving the target information sent from the terminal via the MCG, the network equipment analyzes the target information to obtain the buffer data status information of the SCG contained in the target information, and determines that there is uplink data that needs to be reported in the SCG at this time, and then performs corresponding operations to report the uplink data on the SCG side to the network equipment.

[0146] Here, the target information may include a target BSR and a target RRC signaling. The target BSR may refer to a BSR that the terminal sends to the network device via the MCG, and the target RRC may refer to an RRC that the terminal sends to the network device via the MCG.

[0147] The buffer data status information transmission method for a secondary cell group according to an embodiment of the present disclosure realizes the function of the terminal instructing the buffer data status information of the SCG side by having the network equipment receive target information including the buffer data status information of the SCG sent from the terminal via the MCG side when the SCG is in a deactivated state. As a result, when the SCG is in a deactivated state, the network equipment determines and executes corresponding operations based on the buffer data status information of the SCG side reported by the terminal, thereby enabling the uplink data of the SCG side to be reported smoothly, which significantly improves the stability and efficiency of communication compared with conventional technologies.

[0148] In one embodiment, if the target information includes a target BSR, the LCID in the MAC subPDU header where the BSR MAC CE corresponding to the target BSR is located is: The LCID corresponding to the target BSR is Reserved Codepoint and / or Index parameter values where different LCID values ​​correspond to different target BSRs, and the formats of the BSRs corresponding to the different target BSRs are different. , where 、B The format of the SR may include one or more of a short format, a long format, a short truncated format, and a long truncated format.

[0149] The parameter values ​​of the reserved codepoint and / or index may be the parameter values ​​of the reserved codepoint and / or index in the LCID, or the parameter values ​​of the reserved codepoint and / or index in the eLCID, or may be the parameter values ​​of the preset codepoint and / or index other than the above two types.

[0150] For example, the reserved Codepoint and / or Index parameter values ​​may be the reserved Codepoint and / or Index parameter values ​​of 35 to 44 in the LCID, or the reserved Codepoint parameter values ​​of 0 to 249 and / or Index parameter values ​​of 64 to 313 in the eLCID, or the reserved Codepoint parameter values ​​of 0 to (216-1) and / or Index parameter values ​​of 320 to (216+319) in the eLCID.

[0151] The values ​​of the Codepoint parameter and the Index parameter may be the same or different. For example, the Codepoint parameter and the Index parameter in the LCID are the same, while the Codepoint parameter and the Index parameter in the eLCID are different.

[0152] for example, 1a. Any four of the reserved Codepoint and / or Index parameters from 35 to 44 are assigned to four target LCID values, respectively, and the four target LCID values ​​correspond to the SCG's short format BSR, long format BSR, short truncated format BSR, and long truncated format BSR, respectively.

[0153] For example, index 35 may be used to indicate a first target LCID value corresponding to a BSR in the short truncated format of the SCG, index 36 may be used to indicate a second target LCID value corresponding to a BSR in the long truncated format of the SCG, index 37 may be used to indicate a third target LCID value corresponding to a BSR in the short format of the SCG, and index 38 may be used to indicate a fourth target LCID value corresponding to a BSR in the long format of the SCG.

[0154] If the value of the LCID corresponds to index 35, after receiving the target BSR, the network device can determine that the target BSR is a BSR of the short truncated format of the SCG. Then, the network device reads the information in the target BSR to know which LCG has data to be transmitted, and thereby determines which SCG bearer has data to be transmitted.

[0155] 1b. Any four of the reserved Codepoint parameters from 0 to 249 and / or Index parameters from 64 to 313 are assigned to four target LCID values, respectively, and the four target LCID values ​​correspond to the SCG's short format BSR, long format BSR, short truncated format BSR, and long truncated format BSR, respectively.

[0156] For example, index 65 may be used to indicate a first target LCID value corresponding to a BSR in the short truncated format of the SCG, index 66 may be used to indicate a second target LCID value corresponding to a BSR in the long truncated format of the SCG, index 67 may be used to indicate a third target LCID value corresponding to a BSR in the short format of the SCG, and index 68 may be used to indicate a fourth target LCID value corresponding to a BSR in the long format of the SCG.

[0157] If the value of the LCID corresponds to index 65, after receiving the target BSR, the network device can determine that the target BSR is a BSR of the short truncated format of the SCG. Then, the network device reads the information in the target BSR to know which LCG has data to be transmitted, and thereby determines which SCG bearer has data to be transmitted.

[0158] 1c. The four preset Codepoint and / or Index parameter values ​​correspond to four target LCID values, respectively, and the four target LCID values ​​correspond to the SCG short format BSR, long format BSR, short truncated format BSR, and long truncated format BSR, respectively.

[0159] For example, a first preset Codepoint and / or Index parameter value may be used to indicate a first target LCID value corresponding to the BSR of the short truncated format of the SCG, a second preset Codepoint and / or Index parameter value may be used to indicate a second target LCID value corresponding to the BSR of the long truncated format of the SCG, a third preset Codepoint and / or Index parameter value may be used to indicate a third target LCID value corresponding to the BSR of the short format of the SCG, and a fourth preset Codepoint and / or Index parameter value may be used to indicate a fourth target LCID value corresponding to the BSR of the long format of the SCG.

[0160] If the value of LCID corresponds to the parameter value of the first preset Codepoint and / or Index, after receiving the target BSR, the network device can determine that the target BSR is a BSR of the short truncated format of the SCG, and then read the information in the target BSR to know which LCG has data to be transmitted, thereby determining which SCG bearer has data to be transmitted.

[0161] 2a. Any two of the reserved Codepoint and / or Index parameters from 35 to 44 correspond to two target LCID values, respectively, and the two target LCID values ​​can correspond to any two formats of the BSR of the SCG. For example, the two target LCID values ​​correspond to the short format BSR and the long format BSR of the SCG, respectively.

[0162] Specifically, index 35 may be used to indicate a first target LCID value corresponding to the BSR of the short format of the SCG, and index 36 may be used to indicate a second target LCID value corresponding to the BSR of the long format of the SCG.

[0163] If the value of the LCID corresponds to index 35, after receiving the target BSR, the network device can determine that the target BSR is a short-format BSR of the SCG. Then, the network device reads the information in the target BSR to know which LCG has data to be transmitted, and thereby determines which SCG bearer has data to be transmitted.

[0164] 2b. Any two of the reserved Codepoint parameters from 0 to 249 and / or Index parameters from 64 to 313 correspond to two target LCID values, respectively, and the two target LCID values ​​can correspond to any two formats of the BSR of the SCG. For example, the two target LCID values ​​can correspond to the short format BSR and the long format BSR of the SCG, respectively.

[0165] Specifically, index 65 may be used to indicate a first target LCID value corresponding to a BSR in the short format of the SCG, and index 66 may be used to indicate a second target LCID value corresponding to a BSR in the long format of the SCG.

[0166] If the value of the LCID corresponds to index 65, after receiving the target BSR, the network device can determine that the target BSR is a short-format BSR of the SCG. Then, the network device reads the information in the target BSR to know which LCG has data to be transmitted, and thereby determines which SCG bearer has data to be transmitted.

[0167] 2c. Two preset Codepoint and / or Index parameter values ​​correspond to two target LCID values, respectively, and the two target LCID values ​​can correspond to any two formats of the BSR of the SCG. For example, the two target LCID values ​​can correspond to the short format BSR and the long format BSR of the SCG, respectively.

[0168] For example, a first preset Codepoint and / or Index parameter value may be used to indicate a first target LCID value corresponding to a BSR in the short format of the SCG, and a second preset Codepoint and / or Index parameter value may be used to indicate a second target LCID value corresponding to a BSR in the long format of the SCG.

[0169] If the value of LCID corresponds to the parameter value of the first preset Codepoint and / or Index, after receiving the target BSR, the network device can determine that the target BSR is a short-format BSR of the SCG. Then, the network device reads the information in the target BSR to know which LCG has data to be transmitted, and thereby determines which SCG bearer has data to be transmitted.

[0170] 3a, any one of the reserved Codepoint and / or Index parameters 35 to 44 corresponds to one target LCID value, and this one target LCID value may be any one of four formats of the BSR of the SCG. For example, if the BSR of the short format of the SCG is defined as 0, the BSR of the long format is defined as 1, the BSR of the short truncated format is defined as 2, and the BSR of the long truncated format is defined as 3, when a target LCID value corresponding to any one of them is marked as 3, it indicates that the target LCID value corresponds to the BSR of the long truncated format of the SCG, when a target LCID value corresponding to any one of them is marked as 0, it indicates that the target LCID value corresponds to the BSR of the short format of the SCG, etc.

[0171] For example, index 37 may be used to indicate the target LCID value, assuming the target LCID value is 3.

[0172] If the value of the LCID corresponds to index 37, after receiving the target BSR, the network device can determine that the target BSR is a long truncated format BSR of the SCG, and then read the information in the target BSR to know which LCG has data to be transmitted, thereby determining which SCG bearer has data to be transmitted.

[0173] 3b. Any one of the reserved Codepoint parameters from 0 to 249 and / or Index parameters from 64 to 313 corresponds to one target LCID value, and this one target LCID value may be any one of four formats of the BSR of the SCG. For example, if the BSR of the short format of the SCG is defined as 0, the BSR of the long format is defined as 1, the BSR of the short truncated format is defined as 2, and the BSR of the long truncated format is defined as 3, when a target LCID value corresponding to any one of them is marked as 3, it indicates that the target LCID value corresponds to the BSR of the long truncated format of the SCG, when a target LCID value corresponding to any one of them is marked as 0, it indicates that the target LCID value corresponds to the BSR of the short format of the SCG, etc.

[0174] For example, index 37 or index 67 may be used to indicate the target LCID value, and assuming the target LCID value is 3, the target LCID value corresponds to the BSR of the long truncated format of the SCG.

[0175] If the value of LCID corresponds to index 37 or index 67, after receiving the target BSR, the network device can determine that the target BSR is a long truncated format BSR of the SCG, and then read the information in the target BSR to know which LCG has data to be transmitted, thereby determining which SCG bearer has data to be transmitted.

[0176] 3c. A preset parameter value of one Codepoint and / or Index corresponds to a target LCID value, and this target LCID value may be any one of four formats of the BSR of the SCG. For example, if the BSR of the short format of the SCG is defined as 0, the BSR of the long format is defined as 1, the BSR of the short truncated format is defined as 2, and the BSR of the long truncated format is defined as 3, when a target LCID value corresponding to any one of them is marked as 3, it indicates that the target LCID value corresponds to the BSR of the long truncated format of the SCG; when a target LCID value corresponding to any one of them is marked as 0, it indicates that the target LCID value corresponds to the BSR of the short format of the SCG, etc.

[0177] If the LCID value corresponds to the preset Codepoint and / or Index parameter value, after receiving the target BSR, the network device can determine which format of the SCG the target BSR is based on the preset Codepoint and / or Index parameter value. Then, the network device reads the information in the target BSR to know which LCG has the data to be transmitted, and thereby determines which SCG bearer has the data to be transmitted.

[0178] In one embodiment, if the target information includes a target BSR, the LCID corresponding to the target BSR is: The LCID corresponding to the target BSR is Reserved Codepoint and / or Index parameter values Use target BSR Prescribed format The BSR MAC CE may be a BSR MAC CE that employs the above. The BSR MAC CE may include one or more of the following 1 to 11: 1. SCG index, which indicates which SCG's BSR the target BSR is. 2. LCG bitmap, which indicates that there is data to be transmitted in the SCG, where 1 bit represents 1 LCG. 3. LCG ID, which indicates that the SCG has data to be transmitted. 4. LCID, which indicates that the SCG has data to be transmitted. 5. LCID bitmap, which indicates that there is data to be transmitted in the SCG, where 1 bit represents 1 LC. 6. LCID index bitmap, where LCID index is for identifying the corresponding LCID. For example, if only LCID / drbIDs 5 / 6 / 7 / 8 / 9 / 31 are associated with Data Radio Bearers (DRBs) or RLC bearers for uplink transmission in an SCG, they are sorted and encoded in a preset order, for example, in the order of LCID size, where index=0 corresponds to LCID5, index=1 corresponds to LCID6, index=2 corresponds to LCID7, index=3 corresponds to LCID8, index=4 corresponds to LCID9, and index=5 corresponds to LCID31. That is, the first 6 bits of the 8 bits of the bitmap indicate LCID5 / 6 / 7 / 8 / 9 / 31, respectively, and the last 2 bits may be null or 0, and then correspond to the buffer size of each LCID having data to be transmitted. 7. LCID index, where LCID index is for identifying the corresponding LCID. For example, if only LCID / drbIDs 5 / 6 / 7 / 8 / 9 / 31 in an SCG are associated with DRB or RLC bearers for uplink transmission, they will be sorted and coded in a preset order, for example, in the order of LCID size, where index=0 corresponds to LCID5, index=1 corresponds to LCID6, index=2 corresponds to LCID7, index=3 corresponds to LCID8, index=4 corresponds to LCID9, and index=5 corresponds to LCID31, and indexes 0, 1, 2, 3, 4, and 5 are recorded. 8. LCID bitmap length indication information, where the indication information indicates the length of the LCID bitmap, for example, the length of the LCID bitmap may be 8 bits, 16 bits, 32 bits, etc., where the length of the LCID bitmap includes the LCs associated with the DRBs or RLC bearers of uplink transmission in order, and the extra bits are set to 0. 9. LCID index length indication information, where the indication information indicates the length of the LCID index, for example, the length of the LCID index may be 3 bits, 4 bits, 5 bits, etc., where the length includes the logical channels associated with the DRB or RLC bearer of uplink transmission in order, and the extra bits are set to 0. 10. Buffer data information, which indicates how much buffer data is available, where the amount of buffer data may be in units of LCG or LC. 11. Indication information of whether there is an unreported BSR, which is for indicating whether there is an unreported BSR in the current SCG.

[0179] For example, index 66 may be used to indicate the target LCID value corresponding to the BSR in a predetermined format of the SCG.

[0180] If the value of LCID corresponds to index 66, after receiving the target BSR, the network device can determine that the target BSR is a BSR of a predetermined format of the SCG. Then, the network device reads the information in the target BSR to obtain information such as the SCG index, LCG, LC, buffer data, etc., to determine which SCG bearer has data to be transmitted.

[0181] In one embodiment, if the target information includes a target BSR, the reserved bits in the MAC subheader corresponding to the target BSR are set to any one of the following 1 to 4: satisfy .

[0182] 1. If the MAC subheader contains one reserved bit, the reserved bit indicates whether the target BSR is the BSR of the SCG.

[0183] For example, if the reserved bit R in the MAC subheader of the MAC sub-PDU in which the BSR MAC CE is located is 1, it may indicate that the target BSR is the BSR of the SCG, and if the reserved bit R is 0, it may indicate that the target BSR is not the BSR of the SCG.

[0184] Alternatively, when the reserved bit R is 0, it may indicate that the target BSR is the BSR of the SCG, and when the reserved bit R is 1, it may indicate that the target BSR is not the BSR of the SCG.

[0185] After receiving the target BSR, the network device can determine whether the target BSR is the BSR of the SCG according to the value of the reserved bit in the MAC subheader corresponding to the target BSR, and then read the information in the target BSR to know which LCG has data to be transmitted, thereby determining which SCG bearer has data to be transmitted.

[0186] 2. If the MAC subheader includes two reserved bits, any one of the two reserved bits indicates whether the target BSR is the BSR of the SCG.

[0187] For example, if the first reserved bit R indicating the BSR of the SCG in the MAC sub-header of the MAC sub-PDU in which the BSR MAC CE is located is 1, it may indicate that the target BSR is the BSR of the SCG, and if the first reserved bit R is 0, it may indicate that the target BSR is not the BSR of the SCG.

[0188] Alternatively, if the first reserved bit R is 0, it may indicate that the target BSR is the BSR of the SCG, and if the first reserved bit R is 1, it may indicate that the target BSR is not the BSR of the SCG.

[0189] After receiving the target BSR, the network device can determine whether the target BSR is the BSR of the SCG according to the value of the first reserved bit in the MAC subheader corresponding to the target BSR, and then read the information in the target BSR to know which LCG has data to be transmitted, thereby determining which SCG bearer has data to be transmitted.

[0190] 3. If the MAC subheader includes two reserved bits, one of the two reserved bits indicates whether the target BSR is the BSR of the SCG, and the other indicates whether the target BSR is the BSR of the MCG.

[0191] In this case, the MAC subheader corresponding to the target BSR is one target LCID for indicating the format of the SCG BSR and / or the format of the MCG BSR; and two target LCIDs for indicating the format of the BSR of the SCG and the format of the BSR of the MCG, respectively.

[0192] For example, if the first reserved bit R indicating the BSR of the SCG in the MAC sub-header of the MAC sub-PDU in which the BSR MAC CE is located is 1 and the second reserved bit R indicating the BSR of the MCG is also 1, it can be indicated that the target BSR includes both the BSR of the SCG and the BSR of the MCG. At this point, if the MAC sub-header contains only one target LCID indicating a long BSR, it indicates that both the BSR of the SCG and the BSR of the MCG are long BSRs.

[0193] If the first reserved bit R indicating the BSR of the SCG in the MAC sub-header of the MAC sub-PDU in which the BSR MAC CE is located is 1 and the second reserved bit R indicating the BSR of the MCG is also 1, it can be indicated that the target BSR includes both the BSR of the SCG and the BSR of the MCG. At this point, if the MAC sub-header includes two target LCIDs indicating that the BSR of the SCG is a long BSR and that the BSR of the MCG is a short BSR, respectively, then at this point, the BSR of the SCG is a long BSR and the BSR of the MCG is a short BSR.

[0194] After receiving the target BSR, the network device can determine whether the target BSR is the BSR of the SCG and / or the BSR of the MCG according to the values ​​of the first reserved bit and the second reserved bit in the MAC subheader corresponding to the target BSR. Then, the network device reads the information in the target BSR to know which LCG has data to be transmitted, and thereby determines which SCG bearer has data to be transmitted.

[0195] 4. If the MAC subheader includes two reserved bits, the two reserved bits indicate an SCG index to indicate which SCG's BSR the target BSR is; For example, if the values ​​of the two reserved bits R in the MAC sub-header of the MAC sub-PDU in which the BSR MAC CE is located are 01, it can indicate that the target BSR is the BSR of the SCG with index=01.

[0196] After receiving the target BSR, the network device can determine which SCG's BSR the target BSR is based on the values ​​of the two reserved bits in the MAC subheader corresponding to the target BSR. Then, the network device reads the information in the target BSR to know which LCG has data to be transmitted, and thereby determines which SCG bearer has data to be transmitted.

[0197] Here, the format of the target BSR is any one of a short format, a long format, a short truncated format, a long truncated format, and a predetermined format.

[0198] The method for transmitting buffer data status information of a secondary cell group according to an embodiment of the present disclosure can realize the function of the terminal indicating the buffer data status information of the SCG side by making corresponding settings for the related information of the BSR (such as LCID, eLCID, and reserved bits), thereby realizing low-cost and highly efficient modifications to existing networks.

[0199] In one embodiment, when the target information includes target RRC signaling, the target RRC signaling includes DRB identification information having data to be transmitted in the SCG, and the DRB identification information is represented in the form of a bitmap, where the bitmap includes any one of 1 to 4 below.

[0200] 1. All MCG IDs and all SCG IDs After receiving the target RRC signaling, the network device can determine which DRBs have data to be transmitted by reading the bitmaps of all DRBs therein.

[0201] 2. DRB ID of the RLC bearer in the SCG After receiving the target RRC signaling, the network device can determine which DRB has data to be transmitted by reading the bitmap therein that indicates the DRB ID of the RLC bearer in the SCG.

[0202] 3. DRB ID of the RLC bearer in the SCG, and the RLC bearer is not a split bearer After receiving the target RRC signaling, the network device can determine which DRB has data to be transmitted by reading the bitmap therein that indicates the DRB ID of the RLC bearer in the SCG and the DRB ID of the RLC bearer is not a split bearer.

[0203] 4. The DRB ID of the RLC bearer in the SCG, and if the RLC bearer is a split bearer, the DRB ID of the RLC bearer only includes the split bearer whose main path is in the SCG. After receiving the target RRC signaling, the network device can determine which DRB has data to be transmitted by reading the bitmap therein, which indicates the DRB ID of the RLC bearer in the SCG, and if the RLC bearer is a split bearer, the RLC bearer has data to be transmitted in by reading the bitmap indicating the DRB ID that includes only split bearers whose main path is in the SCG.

[0204] In one embodiment, when the target information includes target RRC signaling, the target RRC signaling includes a DRB ID having data to be transmitted in the SCG, and the DRB ID is any one of 1 to 3 below.

[0205] 1. DRB ID of the RLC bearer in the SCG, which can take the form of a DRB ID list, etc. After receiving the target RRC signaling, the network device can determine which DRB has data to be transmitted by reading the list information therein that indicates the DRB ID of the RLC bearer in the SCG.

[0206] 2. The DRB ID of the RLC bearer in the SCG, and if the RLC bearer is not a split bearer, the DRB ID can take the form of a DRB ID list, etc. After receiving the target RRC signaling, the network device can determine which DRB has data to be transmitted by reading the list information therein, which indicates the DRB IDs of the RLC bearers in the SCG and whose RLC bearers are not split bearers.

[0207] 3. The DRB ID of the RLC bearer in the SCG. If the RLC bearer is a split bearer, the RLC bearer only includes the split bearer whose main path is in the SCG. The DRB ID can take the form of a DRB ID list, etc. After receiving the target RRC signaling, the network device can determine which DRB has data to be transmitted by reading the list information therein, which is the DRB ID of the RLC bearer in the SCG, and if the RLC bearer is a split bearer, the RLC bearer indicates the DRB ID that includes only the split bearer whose main path is in the SCG.

[0208] In one embodiment, when the target information includes target RRC signaling, the target RRC signaling includes logical channel identification information having data to be transmitted in an SCG, and the logical channel identification information is represented in the form of a bitmap or in the form of an LCID list; The logical channel identification information satisfies any one of the following 1 to 3.

[0209] 1. The logical channel identification information includes a bearer, and if the bearer is a split bearer, the bearer only includes the split bearer whose main path is in the SCG.

[0210] After receiving the target RRC signaling, the network device can determine which LC has data to be transmitted by reading the bitmap information or LCID list in which the logical channel identification information includes the bearer, and if the bearer is a split bearer, the bearer only includes split bearers whose main path is in the SCG, thereby determining which DRB has data to be transmitted.

[0211] 2. The logical channel identification information includes a bearer, and the bearer is not a split bearer.

[0212] After receiving the target RRC signaling, the network device can determine which LC has data to be transmitted by reading the bitmap information or LCID list therein, which indicates that the logical channel identification information includes a bearer and that the bearer is not a split bearer, and thereby determine which DRB has data to be transmitted.

[0213] 3. The logical channel identification information includes a bearer, and the bearer is not a split bearer whose main path is in the MCG.

[0214] After receiving the target RRC signaling, the network device can determine which LC has the data to be transmitted by reading the bitmap information or LCID list therein, which indicates that the logical channel identification information includes a bearer and that the bearer is not a split bearer whose main path is in the MCG, and thereby determine which DRB has the data to be transmitted.

[0215] In one embodiment, when the target information includes target RRC signaling, the target RRC signaling includes logical channel group identification information having data to be transmitted in an SCG, and the logical channel group identification information is represented in the form of a bitmap or in the form of an LCG ID list.

[0216] After receiving the target RRC signaling, the network device can determine in which LCG the data to be transmitted is located by reading the bitmap information or LCG ID list therein, which indicates the logical channel group identification information having the data to be transmitted in the SCG, and thereby determine in which DRB the data to be transmitted is located.

[0217] In one embodiment, when the target information includes target RRC signaling, the target RRC signaling includes indication information having data to be transmitted in the SCG.

[0218] After receiving the target RRC signaling, the network equipment can determine that there is data to be transmitted in the SCG by reading the indication information therein that indicates that there is data to be transmitted in the SCG.

[0219] In one embodiment, when the target information includes target RRC signaling, the target RRC signaling includes size information of data to be transmitted in the SCG; Here, the size of data to be transmitted in an SCG is in units of one of per DRB, per LC, per LCG, and per SCG.

[0220] Optionally, the target RRC signaling may include size information of the data to be transmitted in the SCG, and may further include any one of DRB information, LC information, LCG information, and indication information having the data to be transmitted in the SCG.

[0221] After receiving the target RRC signaling, the network equipment can determine the specific size information of the data to be transmitted in the SCG by reading the size information of the data to be transmitted in the SCG therein, or by reading the size information of the data to be transmitted in the SCG therein and any one of the DRB information, the LC information, the LCG information, and the indication information having the data to be transmitted in the SCG.

[0222] The method for transmitting buffer data status information of a secondary cell group according to an embodiment of the present disclosure can realize the function of a terminal indicating buffer data status information on the SCG side by making corresponding settings for related information of RRC signaling (DRB identification information, logical channel identification information, logical channel group identification information, indication information having data to be transmitted in the SCG, and size information of data to be transmitted in the SCG, etc.), thereby realizing low-cost and highly efficient modifications to existing networks.

[0223] The technical solutions according to the embodiments of the present disclosure are applicable to various systems, particularly 5G systems. For example, applicable systems include a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (WCDMA) system, a general packet radio service (GPRS) system, a long term evolution (LTE) system, an LTE frequency division duplex (FDD) system, an LTE time division duplex (TDD) system, a long term evolution advanced (LTE-A) system, a universal mobile telecommunication system (UMTS), a worldwide interoperability for microwave access (WiMAX) system, and a 5G New Radio (NR) system. Each of these various systems includes a terminal device and a network device. The system may also include a core network portion such as an evolved packet system (EPS), a 5G system (5GS), or the like.

[0224] A terminal device according to an embodiment of the present disclosure may be a device providing voice and / or data connectivity to a user, a handheld device with wireless connectivity, or other processing device connected to a wireless modem. Different systems may refer to terminal devices by different names. For example, in a 5G system, terminal devices may be referred to as user equipment (UE). A wireless terminal device can communicate with one or more core networks (CN) via a radio access network (RAN). The wireless terminal device may be a mobile terminal device, such as a mobile phone (also called a "cellular" phone) or a computer with a mobile terminal device, e.g., a portable, pocket-sized, handheld, computer-integrated, or vehicle-mounted mobile device, which exchanges voice and / or data with the radio access network. Examples of such devices include a personal communication service (PCS) phone, a cordless phone, a session initiated protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), and other devices. A wireless terminal device may also be called a system, a subscriber unit, a subscriber station, a mobile station, a mobile, a remote station, an access point, a remote terminal, an access terminal, a user terminal, a user agent, or a user device, and is not limited to these terms in the embodiments of the present disclosure.

[0225] The network equipment according to an embodiment of the present disclosure may be a base station that can include multiple cells serving terminals. Depending on a specific application scenario, the base station may also be called an access point, a device that communicates with wireless terminal devices over one or more sectors over an air interface in an access network, or other names. The network equipment may be used as a router between the wireless terminal devices and the rest of the access network to exchange received air frames and Internet Protocol (IP) packets with each other, where the rest of the access network may include an Internet Protocol (IP) communication network. The network equipment may also coordinate attribute management of the air interface. For example, the network device according to the embodiment of the present disclosure may be a network device (BTS: Base Transceiver Station) in Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA), a network device (Node B) in Wide-band Code Division Multiple Access (WCDMA (registered trademark)), an evolved network device (eNB or e-Node B: evolutionary Node B) in a Long Term Evolution (LTE) system, a 5G base station (gNB) in a 5G network architecture (next generation system), a Home evolved Node B (HeNB), a relay node, a home base station (femto), a pico base station (pico), or the like, and is not limited to these in the embodiment of the present disclosure.In some network architectures, the network equipment may include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit may be located geographically separated.

[0226] Between the network device and the terminal device, multi-input multi-output (MIMO) transmission can be performed using one or more antennas, and the MIMO transmission may be single user MIMO (SU-MIMO) or multi-user MIMO (MU-MIMO). Depending on the type and number of antenna combinations, the MIMO transmission may be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, and may be diversity transmission, precoding transmission, beam focusing transmission, etc.

[0227] 6 is a schematic diagram of a network device according to an embodiment of the present disclosure. Referring to FIG. 6, the embodiment of the present disclosure provides a network device that may include a memory 610, a transceiver 620, and a processor 630.

[0228] The memory 610 is for storing a computer program, and the transceiver 620 is for transmitting and receiving data under the control of the processor 630, which reads the computer program in the memory 610 and performs the following: When a secondary cell group SCG is in a deactivated state, performing an operation including receiving target information transmitted from a terminal via a master cell group MCG, the target information being for indicating buffer data status information of the SCG; Here, the target information is Target Buffer Status Report (BSR); and target radio resource control (RRC) signaling.

[0229] 6, the bus architecture may include any number of interconnected buses and bridges, specifically linking together various circuits, such as one or more processors, represented by processor 630, and memory, represented by memory 610. The bus architecture may also link together various other circuits, such as peripheral devices, voltage regulators, and power management circuits, all of which are well known in the art and will not be further described herein. The bus interface provides an interface. The transceiver 620 may be multiple elements, i.e., includes a transmitter and a receiver, and provides a unit for communicating with various other devices over transmission media. These transmission media include wireless channels, wired channels, optical cables, and the like. The processor 630 manages the bus architecture and general processing, and the memory 610 can store data used by the processor 630 to perform operations.

[0230] The processor 630 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable logic device (CPLD), and the processor may employ a multi-core architecture.

[0231] The processor 630 is configured to execute any of the above-described methods according to the embodiments of the present disclosure in accordance with the executable instructions obtained by calling a computer program stored in the memory 610. The processor 630 and the memory 610 may be physically separated from each other.

[0232] In one embodiment, when the target information includes the target BSR, a logical channel ID LCID corresponding to the target BSR is: The LCID corresponding to the target BSR is Reserved Codepoint and / or Index parameter values wherein different LCID values ​​correspond to different target BSRs, and the formats of the BSRs corresponding to the different target BSRs are different; Here, one target LCID value is Record B Supports one format of SR, Record B The SR format includes any one of a short format, a long format, a short truncated format, and a long truncated format.

[0233] In one embodiment, when the target information includes the target BSR, the LCID corresponding to the target BSR is: The LCID corresponding to the target BSR is Reserved Codepoint and / or Index parameter values and the target BSR is Prescribed format adopted BSR Medium Access Control MAC Control Unit CE and the BSR MAC CE satisfies: SCG index and Logical channel group LCG bitmap bitmap, LCG ID and LCID and LCID bitmap and LCID index bitmap, LCID index and LCID bitmap length indication information; LCID index length indication information; Buffer data information; and an indication of whether there are any unreported BSRs.

[0234] In one embodiment, when the target information includes the target BSR, the reserved bit of the MAC subheader corresponding to the target BSR is: If the MAC subheader includes one reserved bit, the reserved bit indicates whether the target BSR is a BSR of the SCG; and If the MAC subheader includes two reserved bits, any one of the two reserved bits indicates whether the target BSR is a BSR of the SCG; and If the MAC subheader includes two reserved bits, one of the two reserved bits indicates whether the target BSR is a BSR of the SCG, and the other indicates whether the target BSR is a BSR of the MCG; If the MAC subheader includes two reserved bits, the two reserved bits indicate an SCG index, and the SCG index is for indicating which SCG's BSR the target BSR is. Fill , Here, the format of the target BSR is any one of a short format, a long format, a short truncated format, a long truncated format, and a predetermined format.

[0235] In one embodiment, when one of the two reserved bits indicates whether the target BSR is a BSR of the SCG and the other indicates whether the target BSR is a BSR of the MCG, the MAC subheader corresponding to the target BSR is one target LCID for indicating the format of the BSR of the SCG and / or the format of the BSR of the MCG; and two target LCIDs for indicating the format of the BSR of the SCG and the format of the BSR of the MCG, respectively.

[0236] In one embodiment, when the target information includes the target RRC signaling, the target RRC signaling includes data radio bearer (DRB) identification information having data to be transmitted in an SCG, and the DRB identification information is represented in the form of a bitmap; The bitmap is All MCG IDs and all SCG IDs, DRB ID of the radio link control RLC bearer in the SCG; A DRB ID of an RLC bearer in an SCG, where the RLC bearer is not a split bearer; a DRB ID of an RLC bearer in an SCG, and if the RLC bearer is a split bearer, the RLC bearer includes only a DRB ID whose main path is in the SCG.

[0237] In one embodiment, when the target information includes the target RRC signaling, the target RRC signaling includes a DRB ID having data to be transmitted in an SCG, and the DRB ID is: the DRB ID of the RLC bearer in the SCG; A DRB ID of an RLC bearer in an SCG, where the RLC bearer is not a split bearer; a DRB ID of an RLC bearer in an SCG, and if the RLC bearer is a split bearer, the RLC bearer includes only a DRB ID whose main path is in the SCG.

[0238] In one embodiment, when the target information includes the target RRC signaling, the target RRC signaling includes logical channel identification information having data to be transmitted in an SCG, and the logical channel identification information is represented in the form of a bitmap or an LCID list; The logical channel identification information is The logical channel identification information includes a bearer, and if the bearer is a split bearer, the bearer only includes a split bearer whose main path is in the SCG; The logical channel identification information includes a bearer, and the bearer is not a split bearer; the logical channel identification information includes a bearer, and the bearer is not a split bearer whose main path is in an MCG.

[0239] In one embodiment, when the target information includes the target RRC signaling, the target RRC signaling includes logical channel group identification information having data to be transmitted in an SCG, and the logical channel group identification information is represented in the form of a bitmap or an LCG ID list.

[0240] In one embodiment, when the target information includes the target RRC signaling, the target RRC signaling includes indication information having data to be transmitted in an SCG.

[0241] In one embodiment, when the target information includes the target RRC signaling, the target RRC signaling includes size information of data to be transmitted in an SCG; Here, the size of data to be transmitted in an SCG is in units of one of per DRB, per LC, per LCG, and per SCG.

[0242] In one embodiment, the processor 630: Based on the target information, Reconfiguring a target bearer for the MCG and / or the SCG; activating the SCG; and Here, the target bearer is for transmitting data corresponding to the buffer data status information of the SCG.

[0243] 7 is a schematic diagram of a terminal structure according to an embodiment of the present disclosure. Referring to FIG. 7, an embodiment of the present disclosure provides a terminal that may include a memory 710, a transceiver 720, and a processor 730.

[0244] The memory 710 is for storing a computer program, and the transceiver 720 is for transmitting and receiving data under the control of the processor 730, which reads the computer program in the memory 710 and performs the following: Determining that a secondary cell group SCG is in a deactivated state; and sending target information to a network device via a master cell group MCG, the target information being for indicating buffer data status information of the SCG; Here, the target information is Target Buffer Status Report (BSR); and target radio resource control (RRC) signaling.

[0245] 7, the bus architecture may include any number of interconnected buses and bridges, specifically linking together various circuits, such as one or more processors, represented by processor 730, and memory, represented by memory 710. The bus architecture may also link together various other circuits, such as peripheral devices, voltage regulators, and power management circuits, all of which are well known in the art and will not be further described herein. The bus interface provides an interface. The transceiver 720 may be multiple elements, i.e., includes a transmitter and a receiver, and provides a unit for communicating with various other devices over transmission media. These transmission media include wireless channels, wired channels, optical cables, and the like. For different user devices, the user interface 740 may be an interface connectable externally or internally to the required devices, including, but not limited to, a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0246] The processor 730 manages the bus architecture and general processing, and the memory 710 may store data used by the processor 730 in performing operations.

[0247] Alternatively, processor 730 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable logic device (CPLD), and processor 730 may employ a multi-core architecture.

[0248] The processor 730 is configured to execute any of the above-described methods according to the embodiments of the present disclosure in accordance with the executable instructions obtained by calling a computer program stored in the memory 710. The processor 730 and the memory 710 may be physically separated from each other.

[0249] In one embodiment, when the target information includes the target BSR, a logical channel ID LCID corresponding to the target BSR is: The LCID corresponding to the target BSR is Reserved Codepoint and / or Index parameter values wherein different LCID values ​​correspond to different target BSRs, and the formats of the BSRs corresponding to the different target BSRs are different; before Record B The format of the SR includes one or more of a short format, a long format, a short truncated format, and a long truncated format.

[0250] In one embodiment, when the target information includes the target BSR, the LCID corresponding to the target BSR is: The LCID corresponding to the target BSR is Reserved Codepoint and / or Index parameter values and the target BSR is Prescribed format adopted BSR Medium Access Control MAC Control Unit CE and the BSR MAC CE satisfies: SCG index and Logical channel group LCG bitmap bitmap, LCG ID and LCID and LCID bitmap and LCID index bitmap, LCID index and LCID bitmap length indication information; LCID index length indication information; Buffer data information; and an indication of whether there are any unreported BSRs.

[0251] In one embodiment, when the target information includes the target BSR, the reserved bit of the MAC subheader corresponding to the target BSR is: If the MAC subheader includes one reserved bit, the reserved bit indicates whether the target BSR is a BSR of the SCG; and If the MAC subheader includes two reserved bits, any one of the two reserved bits indicates whether the target BSR is a BSR of the SCG; and If the MAC subheader includes two reserved bits, one of the two reserved bits indicates whether the target BSR is a BSR of the SCG, and the other indicates whether the target BSR is a BSR of the MCG; If the MAC subheader includes two reserved bits, the two reserved bits indicate an SCG index, and the SCG index is for indicating which SCG's BSR the target BSR is. Fill , Here, the format of the target BSR is any one of a short format, a long format, a short truncated format, a long truncated format, and a predetermined format.

[0252] In one embodiment, when one of the two reserved bits indicates whether the target BSR is a BSR of the SCG and the other indicates whether the target BSR is a BSR of the MCG, the MAC subheader corresponding to the target BSR is one target LCID for indicating the format of the BSR of the SCG and / or the format of the BSR of the MCG; and two target LCIDs for indicating the format of the BSR of the SCG and the format of the BSR of the MCG, respectively.

[0253] In one embodiment, when the target information includes the target RRC signaling, the target RRC signaling includes data radio bearer (DRB) identification information having data to be transmitted in an SCG, and the DRB identification information is represented in the form of a bitmap; The bitmap is All MCG IDs and all SCG IDs, DRB ID of the radio link control RLC bearer in the SCG; A DRB ID of an RLC bearer in an SCG, where the RLC bearer is not a split bearer; a DRB ID of an RLC bearer in an SCG, and if the RLC bearer is a split bearer, the RLC bearer includes only a DRB ID whose main path is in the SCG.

[0254] In one embodiment, when the target information includes the target RRC signaling, the target RRC signaling includes a DRB ID having data to be transmitted in an SCG, and the DRB ID is: the DRB ID of the RLC bearer in the SCG; A DRB ID of an RLC bearer in an SCG, where the RLC bearer is not a split bearer; a DRB ID of an RLC bearer in an SCG, and if the RLC bearer is a split bearer, the RLC bearer includes only a DRB ID whose main path is in the SCG.

[0255] In one embodiment, when the target information includes the target RRC signaling, the target RRC signaling includes logical channel identification information having data to be transmitted in an SCG, and the logical channel identification information is represented in the form of a bitmap or an LCID list; The logical channel identification information is The logical channel identification information includes a bearer, and if the bearer is a split bearer, the bearer only includes a split bearer whose main path is in the SCG; The logical channel identification information includes a bearer, and the bearer is not a split bearer; the logical channel identification information includes a bearer, and the bearer is not a split bearer whose main path is in an MCG.

[0256] In one embodiment, when the target information includes the target RRC signaling, the target RRC signaling includes logical channel group identification information having data to be transmitted in an SCG, and the logical channel group identification information is represented in the form of a bitmap or an LCG ID list.

[0257] In one embodiment, when the target information includes the target RRC signaling, the target RRC signaling includes indication information having data to be transmitted in an SCG.

[0258] In one embodiment, when the target information includes the target RRC signaling, the target RRC signaling includes size information of data to be transmitted in an SCG; Here, the size of data to be transmitted in an SCG is in units of one of per DRB, per LC, per LCG, and per SCG.

[0259] 8 is a schematic diagram of the structure of a secondary cell group buffer data status information transmission device according to an embodiment of the present disclosure. Referring to FIG. 8, the secondary cell group buffer data status information transmission device according to an embodiment of the present disclosure includes: The method may include a receiving module 810 configured to receive target information transmitted from a terminal via a master cell group MCG when a secondary cell group SCG is in a deactivated state, the target information being for indicating buffer data status information of the SCG; Here, the target information is Target Buffer Status Report (BSR); and target radio resource control (RRC) signaling.

[0260] In one embodiment, when the target information includes the target BSR, a logical channel ID LCID corresponding to the target BSR is: The LCID corresponding to the target BSR is Reserved Codepoint and / or Index parameter values wherein different LCID values ​​correspond to different target BSRs, and the formats of the BSRs corresponding to the different target BSRs are different; before Record B The format of the SR includes one or more of a short format, a long format, a short truncated format, and a long truncated format.

[0261] In one embodiment, when the target information includes the target BSR, the LCID corresponding to the target BSR is: The LCID corresponding to the target BSR is Reserved Codepoint and / or Index parameter values and the target BSR is Prescribed format adopted BSR Medium Access Control MAC Control Unit CE and the BSR MAC CE satisfies: SCG index and Logical channel group LCG bitmap bitmap, LCG ID and LCID and LCID bitmap and LCID index bitmap, LCID index and LCID bitmap length indication information; LCID index length indication information; Buffer data information; and an indication of whether there are any unreported BSRs.

[0262] In one embodiment, when the target information includes the target BSR, the reserved bit of the MAC subheader corresponding to the target BSR is: If the MAC subheader includes one reserved bit, the reserved bit indicates whether the target BSR is a BSR of the SCG; and If the MAC subheader includes two reserved bits, any one of the two reserved bits indicates whether the target BSR is a BSR of the SCG; and If the MAC subheader includes two reserved bits, one of the two reserved bits indicates whether the target BSR is a BSR of the SCG, and the other indicates whether the target BSR is a BSR of the MCG; If the MAC subheader includes two reserved bits, the two reserved bits indicate an SCG index, and the SCG index is for indicating which SCG's BSR the target BSR is. Fill , Here, the format of the target BSR is any one of a short format, a long format, a short truncated format, a long truncated format, and a predetermined format.

[0263] In one embodiment, when one of the two reserved bits indicates whether the target BSR is a BSR of the SCG and the other indicates whether the target BSR is a BSR of the MCG, the MAC subheader corresponding to the target BSR is one target LCID for indicating the format of the BSR of the SCG and / or the format of the BSR of the MCG; and two target LCIDs for indicating the format of the BSR of the SCG and the format of the BSR of the MCG, respectively.

[0264] In one embodiment, when the target information includes the target RRC signaling, the target RRC signaling includes data radio bearer (DRB) identification information having data to be transmitted in an SCG, and the DRB identification information is represented in the form of a bitmap; The bitmap is All MCG IDs and all SCG IDs, DRB ID of the radio link control RLC bearer in the SCG; A DRB ID of an RLC bearer in an SCG, where the RLC bearer is not a split bearer; a DRB ID of an RLC bearer in an SCG, and if the RLC bearer is a split bearer, the RLC bearer includes only a DRB ID whose main path is in the SCG.

[0265] In one embodiment, when the target information includes the target RRC signaling, the target RRC signaling includes a DRB ID having data to be transmitted in an SCG, and the DRB ID is: the DRB ID of the RLC bearer in the SCG; A DRB ID of an RLC bearer in an SCG, where the RLC bearer is not a split bearer; a DRB ID of an RLC bearer in an SCG, and if the RLC bearer is a split bearer, the RLC bearer includes only a DRB ID whose main path is in the SCG.

[0266] In one embodiment, when the target information includes the target RRC signaling, the target RRC signaling includes logical channel identification information having data to be transmitted in an SCG, and the logical channel identification information is represented in the form of a bitmap or an LCID list; The logical channel identification information is The logical channel identification information includes a bearer, and if the bearer is a split bearer, the bearer only includes a split bearer whose main path is in the SCG; The logical channel identification information includes a bearer, and the bearer is not a split bearer; the logical channel identification information includes a bearer, and the bearer is not a split bearer whose main path is in an MCG.

[0267] In one embodiment, when the target information includes the target RRC signaling, the target RRC signaling includes logical channel group identification information having data to be transmitted in an SCG, and the logical channel group identification information is represented in the form of a bitmap or an LCG ID list.

[0268] In one embodiment, when the target information includes the target RRC signaling, the target RRC signaling includes indication information having data to be transmitted in an SCG.

[0269] In one embodiment, when the target information includes the target RRC signaling, the target RRC signaling includes size information of data to be transmitted in an SCG; Here, the size of data to be transmitted in an SCG is in units of one of per DRB, per LC, per LCG, and per SCG.

[0270] In one embodiment, a buffer data status information transmission device for a secondary cell group according to an embodiment of the present disclosure includes: Based on the target information, Reconfiguring a target bearer for the MCG and / or the SCG; and activating the SCG; Here, the target bearer is for transmitting data corresponding to the buffer data status information of the SCG.

[0271] 9 is a second schematic diagram of the structure of the buffer data status information transmission device of the secondary cell group according to an embodiment of the present disclosure. Referring to FIG. 9, the buffer data status information transmission device of the secondary cell group according to an embodiment of the present disclosure includes: a determining module 910 configured to determine that a secondary cell group SCG is in a deactivated state; a sending module 920 configured to send target information to a network device via a master cell group MCG, the target information being for indicating buffer data status information of the SCG; Here, the target information is Target Buffer Status Report (BSR); and target radio resource control (RRC) signaling.

[0272] In one embodiment, when the target information includes the target BSR, a logical channel ID LCID corresponding to the target BSR is: The LCID corresponding to the target BSR is Reserved Codepoint and / or Index parameter values wherein different LCID values ​​correspond to different target BSRs, and the formats of the BSRs corresponding to the different target BSRs are different; before Record BThe format of the SR includes one or more of a short format, a long format, a short truncated format, and a long truncated format.

[0273] In one embodiment, when the target information includes the target BSR, the LCID corresponding to the target BSR is: The LCID corresponding to the target BSR is Reserved Codepoint and / or Index parameter values and the target BSR is Prescribed format adopted BSR Medium Access Control MAC Control Unit CE and the BSR MAC CE satisfies: SCG index and Logical channel group LCG bitmap bitmap, LCG ID and LCID and LCID bitmap and LCID index bitmap, LCID index and LCID bitmap length indication information; LCID index length indication information; Buffer data information; and an indication of whether there are any unreported BSRs.

[0274] In one embodiment, when the target information includes the target BSR, the reserved bit of the MAC subheader corresponding to the target BSR is: If the MAC subheader includes one reserved bit, the reserved bit indicates whether the target BSR is a BSR of the SCG; and If the MAC subheader includes two reserved bits, any one of the two reserved bits indicates whether the target BSR is a BSR of the SCG; and If the MAC subheader includes two reserved bits, one of the two reserved bits indicates whether the target BSR is a BSR of the SCG, and the other indicates whether the target BSR is a BSR of the MCG; If the MAC subheader includes two reserved bits, the two reserved bits indicate an SCG index, and the SCG index is for indicating which SCG's BSR the target BSR is. Fill , Here, the format of the target BSR is any one of a short format, a long format, a short truncated format, a long truncated format, and a predetermined format.

[0275] In one embodiment, when one of the two reserved bits indicates whether the target BSR is a BSR of the SCG and the other indicates whether the target BSR is a BSR of the MCG, the MAC subheader corresponding to the target BSR is one target LCID for indicating the format of the BSR of the SCG and / or the format of the BSR of the MCG; and two target LCIDs for indicating the format of the BSR of the SCG and the format of the BSR of the MCG, respectively.

[0276] In one embodiment, when the target information includes the target RRC signaling, the target RRC signaling includes data radio bearer (DRB) identification information having data to be transmitted in an SCG, and the DRB identification information is represented in the form of a bitmap; The bitmap is All MCG IDs and all SCG IDs, DRB ID of the radio link control RLC bearer in the SCG; A DRB ID of an RLC bearer in an SCG, where the RLC bearer is not a split bearer; a DRB ID of an RLC bearer in an SCG, and if the RLC bearer is a split bearer, the RLC bearer includes only a DRB ID whose main path is in the SCG.

[0277] In one embodiment, when the target information includes the target RRC signaling, the target RRC signaling includes a DRB ID having data to be transmitted in an SCG, and the DRB ID is: the DRB ID of the RLC bearer in the SCG; A DRB ID of an RLC bearer in an SCG, where the RLC bearer is not a split bearer; a DRB ID of an RLC bearer in an SCG, and if the RLC bearer is a split bearer, the RLC bearer includes only a DRB ID whose main path is in the SCG.

[0278] In one embodiment, when the target information includes the target RRC signaling, the target RRC signaling includes logical channel identification information having data to be transmitted in an SCG, and the logical channel identification information is represented in the form of a bitmap or an LCID list; The logical channel identification information is The logical channel identification information includes a bearer, and if the bearer is a split bearer, the bearer only includes a split bearer whose main path is in the SCG; The logical channel identification information includes a bearer, and the bearer is not a split bearer; the logical channel identification information includes a bearer, and the bearer is not a split bearer whose main path is in an MCG.

[0279] In one embodiment, when the target information includes the target RRC signaling, the target RRC signaling includes logical channel group identification information having data to be transmitted in an SCG, and the logical channel group identification information is represented in the form of a bitmap or an LCG ID list.

[0280] In one embodiment, when the target information includes the target RRC signaling, the target RRC signaling includes indication information having data to be transmitted in an SCG.

[0281] In one embodiment, when the target information includes the target RRC signaling, the target RRC signaling includes size information of data to be transmitted in an SCG; Here, the size of data to be transmitted in an SCG is in units of one of per DRB, per LC, per LCG, and per SCG.

[0282] It should be noted that the above-mentioned device according to the embodiment of the present disclosure can realize all the method steps realized by the above-mentioned method embodiment and can achieve the same technical effects, and details of the same parts and beneficial effects of this embodiment as those of the above-mentioned method embodiment will be omitted here.

[0283] In the embodiments of the present disclosure, the division into units is merely a schematic and logical functional division, and other division methods may be used in actual implementation. In addition, in each embodiment of the present disclosure, each functional unit may be integrated into a single processing unit, or each unit may exist physically alone, or two or more units may be integrated into a single unit. The integrated units may be implemented in the form of hardware or software functional units.

[0284] The above-mentioned integrated units can be realized in the form of software functional units and stored in a processor-readable storage medium when sold or used as an independent product. Based on this understanding, the technical solution of the present disclosure, its essence, the portion contributing to the prior art, or all or part of the technical means may be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions that cause a computer device (which may be a personal computer, a server, a network device, etc.) or a processor to execute all or part of the steps of the method described in each embodiment of the present disclosure. The storage medium includes various media capable of storing program code, such as a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0285] On the other hand, an embodiment of the present disclosure further provides a processor-readable storage medium storing a computer program for causing a processor to execute the method provided by each of the above-described embodiments, the method including, for example: When a secondary cell group (SCG) is in a deactivated state, receiving target information transmitted from the terminal via a master cell group (MCG), the target information being for indicating buffer data status information of the SCG; Here, the target information is Target Buffer Status Report (BSR); target radio resource control (RRC) signaling; or Determining that a secondary cell group SCG is in a deactivated state; sending target information to a network device via a master cell group MCG, the target information being for indicating buffer data status information of the SCG; Here, the target information is Target Buffer Status Report (BSR); and target radio resource control (RRC) signaling.

[0286] The processor-readable storage medium may be any available medium or data storage device that can be accessed by a processor, including, but not limited to, magnetic memory (e.g., flexible disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical memory (e.g., CDs, DVDs, BDs, HVDs, etc.), semiconductor memory (e.g., ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state drives (SSD)), etc.

[0287] As will be appreciated by those skilled in the art, embodiments of the present disclosure may be provided as a method, a system, or a computer program product. Thus, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware. The present disclosure may also take the form of a computer program product embodied in one or more computer-usable storage media (including, but not limited to, magnetic disk memory, optical memory, etc.) containing computer-usable program code.

[0288] The present disclosure will be described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present disclosure. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, and combinations of flows and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions are provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to create a machine, and the instructions, executed by the processor of the computer or other programmable data processing device, generate means for implementing the functions specified in one or more flows in the flowcharts and / or one or more blocks in the block diagrams.

[0289] These processor-executable instructions may be stored in a processor-readable memory that causes a computer or other programmable data processing device to operate in a particular manner to produce an article of manufacture that includes instruction means, the instructions stored in the processor-readable memory implementing the functions specified in one or more flows in the flowcharts and / or one or more blocks in the block diagrams.

[0290] These processor-executable instructions may be loaded into a computer or other programmable data processing device and cause the computer or other programmable device to perform a series of operational steps to generate a computer-implemented process, whereby the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more flows in the flowcharts and / or one or more blocks in the block diagrams.

[0291] Of course, those skilled in the art can make various changes and modifications to the present disclosure without departing from the spirit and scope of the present disclosure. Thus, if these changes and modifications of the present disclosure fall within the scope of the claims of the present disclosure and their equivalents, the present disclosure also intends to include these changes and modifications. [Explanation of symbols]

[0292] 610 memory 620 Transceiver 630 processor 710 memory 720 Transceiver 730 processor 740 User Interface 810 Receiver Module 910 Decision Module 920 Transmitting Module

Claims

1. Determining that a secondary cell group SCG is in a deactivated state; and sending target information to a network device via a master cell group MCG, the target information being for indicating buffer data status information of the SCG; wherein the target information includes a target buffer status report (BSR); The reserved bit of the MAC subheader corresponding to the target BSR indicates whether the target BSR is a BSR of the SCG if the MAC subheader includes one reserved bit; if the MAC subheader includes two reserved bits, one of the two reserved bits indicates whether the target BSR is a BSR of the SCG; if the MAC subheader includes two reserved bits, one of the two reserved bits indicates whether the target BSR is a BSR of the SCG, and the other indicates whether the target BSR is a BSR of the MCG; if the MAC subheader includes two reserved bits, the two reserved bits indicate an SCG index, and the SCG and the index is for indicating which SCG the target BSR is a BSR of, wherein the format of the target BSR is one of a short format, a long format, a short truncated format, a long truncated format, and a predetermined format. A method for transmitting buffer data status information of a secondary cell group.

2. The logical channel ID LCID corresponding to the target BSR is The LCID corresponding to the target BSR uses reserved Codepoint and / or Index parameter values, different LCID values ​​correspond to different target BSRs, and the formats of the BSRs corresponding to the different target BSRs are different; wherein the format of the BSR includes one or more of a short format, a long format, a short truncated format, and a long truncated format; Or, The LCID corresponding to the target BSR is The LCID corresponding to the target BSR uses reserved Codepoint and / or Index parameter values, and the target BSR is a BSR Medium Access Control (MAC) control unit (CE) that adopts a predetermined format, and the BSR MAC CE: SCG index, and a logical channel group LCG bitmap bitmap; LCG ID; LCID and LCID bitmap, and LCID index bitmapと、 LCID index, and LCID bitmap length indication information; and LCID index length indication information; Buffer data information; and an indication of whether there is an unreported BSR. The method for transmitting buffer data status information of a secondary cell group according to claim 1 .

3. If one of the two reserved bits indicates whether the target BSR is a BSR of the SCG and the other indicates whether the target BSR is a BSR of the MCG, the MAC subheader corresponding to the target BSR may be one target LCID for indicating the format of the BSR of the SCG and / or the format of the BSR of the MCG; and two target LCIDs for indicating the format of the BSR of the SCG and the format of the BSR of the MCG, respectively. The method for transmitting buffer data status information of a secondary cell group according to claim 1 .

4. determining that a secondary cell group SCG is in a deactivated state; and sending target information to a network device via a master cell group MCG, the target information being for indicating buffer data status information of the SCG; Wherein the target information includes target radio resource control (RRC) signaling; The target RRC signaling includes indication information having data to be transmitted in an SCG; The target RRC signaling includes size information of data to be transmitted in the SCG; Here, the size of data to be transmitted in the SCG is in units of one of per DRB, per LC, per LCG, and per SCG. A method for transmitting buffer data status information of a secondary cell group.

5. The target RRC signaling includes a data radio bearer (DRB) identification information having data to be transmitted in an SCG, the DRB identification information being represented in a bitmap format; The bitmap is IDs of all MCGs and IDs of all SCGs; DRB ID of the Radio Link Control RLC bearer in the SCG; and A DRB ID of an RLC bearer in an SCG, where the RLC bearer is not a split bearer; and a DRB ID of an RLC bearer in an SCG, and if the RLC bearer is a split bearer, the RLC bearer includes only a DRB ID whose main path is in the SCG. The method for transmitting buffer data status information of a secondary cell group according to claim 4.

6. The target RRC signaling includes a DRB ID having data to be transmitted in an SCG, and the DRB ID is: the DRB ID of the RLC bearer in the SCG; and A DRB ID of an RLC bearer in an SCG, where the RLC bearer is not a split bearer; and a DRB ID of an RLC bearer in an SCG, and if the RLC bearer is a split bearer, the RLC bearer includes only a DRB ID whose main path is in the SCG. The method for transmitting buffer data status information of a secondary cell group according to claim 4.

7. The target RRC signaling includes logical channel identification information having data to be transmitted in an SCG, the logical channel identification information being represented in the form of a bitmap or in the form of an LCID list; The logical channel identification information is The logical channel identification information includes a bearer, and if the bearer is a split bearer, the bearer includes only the split bearer whose main path is in the SCG; The logical channel identification information includes a bearer, and the bearer is not a split bearer; the logical channel identification information includes a bearer, and the bearer is not a split bearer whose main path is in an MCG. The method for transmitting buffer data status information of a secondary cell group according to claim 4.

8. The target RRC signaling includes logical channel group identification information having data to be transmitted in an SCG, and the logical channel group identification information is represented in a bitmap format or in an LCG ID list format. The method for transmitting buffer data status information of a secondary cell group according to claim 4.

9. When the secondary cell group SCG is in a deactivated state, receiving target information transmitted from the terminal via the master cell group MCG, the target information being for indicating buffer data status information of the SCG; wherein the target information includes a target buffer status report (BSR); The reserved bit of the MAC subheader corresponding to the target BSR indicates whether the target BSR is a BSR of the SCG if the MAC subheader includes one reserved bit; if the MAC subheader includes two reserved bits, one of the two reserved bits indicates whether the target BSR is a BSR of the SCG; if the MAC subheader includes two reserved bits, one of the two reserved bits indicates whether the target BSR is a BSR of the SCG, and the other indicates whether the target BSR is a BSR of the MCG; if the MAC subheader includes two reserved bits, the two reserved bits indicate an SCG index, and the SCG and the index is for indicating which SCG the target BSR is a BSR of, wherein the format of the target BSR is one of a short format, a long format, a short truncated format, a long truncated format, and a predetermined format. A method for transmitting buffer data status information of a secondary cell group.

10. Based on the target information, Reconfiguring a target bearer for the MCG and / or the SCG; activating the SCG; and Here, the target bearer is for transmitting data corresponding to buffer data status information of the SCG. The method for transmitting buffer data status information of a secondary cell group according to claim 9.

11. When a secondary cell group SCG is in a deactivated state, receiving target information transmitted from a terminal via a master cell group MCG, the target information being for indicating buffer data status information of the SCG; Wherein the target information includes target radio resource control (RRC) signaling; The target RRC signaling includes indication information having data to be transmitted in an SCG; The target RRC signaling includes size information of data to be transmitted in the SCG; Here, the size of data to be transmitted in the SCG is in units of one of per DRB, per LC, per LCG, and per SCG. A method for transmitting buffer data status information of a secondary cell group.

12. a determining module configured to determine that a secondary cell group SCG is in a deactivated state; a sending module configured to send target information to a network device via a master cell group MCG, the target information being for indicating buffer data status information of the SCG; wherein the target information includes a target buffer status report (BSR); The reserved bit of the MAC subheader corresponding to the target BSR indicates whether the target BSR is a BSR of the SCG if the MAC subheader includes one reserved bit; if the MAC subheader includes two reserved bits, one of the two reserved bits indicates whether the target BSR is a BSR of the SCG; if the MAC subheader includes two reserved bits, one of the two reserved bits indicates whether the target BSR is a BSR of the SCG, and the other indicates whether the target BSR is a BSR of the MCG; if the MAC subheader includes two reserved bits, the two reserved bits indicate an SCG index, and the SCG and the index is for indicating which SCG the target BSR is a BSR of, wherein the format of the target BSR is one of a short format, a long format, a short truncated format, a long truncated format, and a predetermined format. A buffer data status information transmission device for a secondary cell group.

13. A determination module configured to determine that a secondary cell group SCG is in a deactivated state; a sending module configured to send target information to a network device via a master cell group MCG, the target information being for indicating buffer data status information of the SCG; Wherein the target information includes target radio resource control (RRC) signaling; The target RRC signaling includes indication information having data to be transmitted in an SCG; The target RRC signaling includes size information of data to be transmitted in the SCG; Here, the size of data to be transmitted in the SCG is in units of one of per DRB, per LC, per LCG, and per SCG. A buffer data status information transmission device for a secondary cell group.

14. A receiving module configured to receive target information transmitted from a terminal via a master cell group MCG when a secondary cell group SCG is in a deactivated state, the target information being for indicating buffer data status information of the SCG; wherein the target information includes a target buffer status report (BSR); The reserved bit of the MAC subheader corresponding to the target BSR indicates whether the target BSR is a BSR of the SCG if the MAC subheader includes one reserved bit; if the MAC subheader includes two reserved bits, one of the two reserved bits indicates whether the target BSR is a BSR of the SCG; if the MAC subheader includes two reserved bits, one of the two reserved bits indicates whether the target BSR is a BSR of the SCG, and the other indicates whether the target BSR is a BSR of the MCG; if the MAC subheader includes two reserved bits, the two reserved bits indicate an SCG index, and the SCG and the index is for indicating which SCG the target BSR is a BSR of, wherein the format of the target BSR is one of a short format, a long format, a short truncated format, a long truncated format, and a predetermined format. A buffer data status information transmission device for a secondary cell group.

15. A method for implementing a method of implementing a ... Wherein the target information includes target radio resource control (RRC) signaling; The target RRC signaling includes indication information having data to be transmitted in an SCG; The target RRC signaling includes size information of data to be transmitted in the SCG; Here, the size of data to be transmitted in the SCG is in units of one of per DRB, per LC, per LCG, and per SCG. A buffer data status information transmission device for a secondary cell group.

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