Communication method and device, base station, terminal and storage medium

Abstract

The invention discloses a communication method and device, a terminal, a base station and a storage medium, and the method comprises the steps: a first base station, namely an auxiliary base station connected with the terminal when the terminal works in a DC mode, transmits second information to the terminal; the second information is used for instructing the first base station to send the first information to reach the maximum retransmission times or instructing the terminal to perform RRC reconstruction; and / or, when the first base station receives third information sent by the terminal, the first base station stops transmitting the first information to the terminal, the third information is used for indicating expiration of timing of a first timer of the terminal; the first timer is used for triggering the terminal to perform RRC reconstruction after timing expires.

Description

Technical Field

[0001] The present application relates to the field of wireless technology, and in particular to a communication method, device, base station, terminal and storage medium. Background Art

[0002] In the dual connectivity (DC) scenario, the terminal runs a fast master cell group (MCG) connection recovery mechanism, the operation of which may cause a waste of transmission resources between the secondary base station (SN) and the terminal, or may affect the communication efficiency of the terminal. Summary of the invention

[0003] To solve related technical problems, the embodiments of the present application provide a communication method, device, base station, terminal and storage medium.

[0004] The technical solution of the embodiment of the present application is implemented as follows:

[0005] The embodiment of the present application provides a communication method, which is applied to a first base station; the first base station represents a secondary base station to which a terminal is connected when operating in a DC mode; the method includes:

[0006] Sending second information to the terminal; the second information is used to instruct the first base station to send the first information to reach a maximum number of retransmissions or to instruct the terminal to perform radio resource control (RRC, Radio Resource Control) reconstruction; and / or,

[0007] When receiving the third information sent by the terminal, stop transmitting the first information to the terminal; the third information is used to indicate that the first timer of the terminal has expired; the first timer is used to trigger the terminal to perform RRC reconstruction after the expiration of the timer.

[0008] Optionally, in the above solution, the sending the second information to the terminal includes:

[0009] When the first base station sends the first information to the terminal for a maximum number of retransmissions, the first base station sends second information to the terminal.

[0010] Optionally, in the above solution, the second information is carried in the first information last retransmitted by the first base station to the terminal; or,

[0011] The second information is carried in a set sequence sent by the first base station to the terminal, in downlink control information (DCI) or in a media access control layer (MAC) control unit (CE) or in a set pulse signal.

[0012] Optionally, in the above solution, the method further includes:

[0013] Receive fourth information; the fourth information represents the operation status of the first timer when the terminal receives the second information.

[0014] Optionally, in the above solution, the fourth information includes at least one of the following:

[0015] the remaining timing length of the first timer;

[0016] The set timing length of the first timer;

[0017] the length of time the first timer has run;

[0018] The ratio of the remaining timing length to the set timing length;

[0019] The ratio of the running timing length to the set timing length.

[0020] Optionally, in the above solution, the method further includes:

[0021] Based on the fourth information, the maximum number of retransmissions is reconfigured and / or the reconfigured setting timing length of the first timer is sent to the terminal.

[0022] Optionally, in the above solution, after receiving the third information sent by the terminal, the method further includes:

[0023] reconfiguring the maximum number of retransmissions and / or sending the reconfigured set timing length of the first timer to the terminal; and / or,

[0024] The fifth information is sent to a second base station; the second base station represents the main base station to which the terminal is connected when working in DC mode; the fifth information represents the situation in which the first base station retransmits data to the terminal when receiving the third information.

[0025] Optionally, in the above solution, the fifth information includes at least one of the following:

[0026] The remaining number of retransmissions by the first base station to the terminal;

[0027] a ratio of the remaining number of retransmissions to the maximum number of retransmissions;

[0028] A ratio of the number of retransmissions completed by the first base station to the terminal to the maximum number of retransmissions.

[0029] Optionally, in the above solution, the reconfiguring the maximum number of retransmission times and / or sending the reconfigured set timing length of the first timer to the terminal includes:

[0030] receiving sixth information sent by the terminal; the sixth information is used to indicate that the terminal has not successfully received the first information or has not received the second information when the first timer expires;

[0031] Based on the fifth information and the sixth information, the maximum number of retransmissions is reconfigured and / or the reconfigured set timing length of the first timer is sent to the terminal.

[0032] Optionally, in the above solution, after sending the fifth information to the second base station, the method further includes:

[0033] Receive the reconfigured maximum number of retransmission times sent by the second base station.

[0034] The embodiment of the present application also provides a communication method, which is applied to a terminal; the method includes:

[0035] When receiving the second information sent by the first base station, performing RRC reconstruction; the second information is used to indicate that the first base station has sent the first information for a maximum number of retransmissions or to instruct the terminal to perform RRC reconstruction; and / or,

[0036] Reporting third information to the network side; wherein the third information is used to indicate that the first timer of the terminal has expired; wherein,

[0037] The first base station represents a secondary base station to which the terminal is connected when operating in the DC mode.

[0038] Optionally, in the above solution, the second information is carried in the first information last retransmitted by the first base station to the terminal; and / or,

[0039] The second information is carried in a set sequence, DCI, MACCE, or a set pulse signal sent by the first base station to the terminal.

[0040] Optionally, in the above solution, the method further includes:

[0041] Sending fourth information to the network side; the fourth information represents the operation status of the first timer when the terminal receives the second information.

[0042] Optionally, in the above solution, the fourth information includes at least one of the following:

[0043] The remaining time length of the first timer;

[0044] The set timing length of the first timer;

[0045] the length of time the first timer has run;

[0046] The ratio of the remaining timing length to the set timing length;

[0047] The ratio of the running timing length to the set timing length.

[0048] Optionally, in the above solution, the method further includes:

[0049] Sending sixth information to the network side; the sixth information is used to indicate that the terminal has not successfully received the first information or has not received the second information when the first timer expires.

[0050] Optionally, in the above solution, the method further includes:

[0051] Receive the reconfigured set timing length of the first timer sent by the network side.

[0052] The embodiment of the present application further provides a communication method, which is applied to a second base station; the second base station represents a primary base station to which the terminal is connected when operating in a DC mode; the method includes:

[0053] Receiving fourth information sent by the terminal; the fourth information represents the operation status of the first timer when the terminal receives the second information; the second information is used to indicate that the first base station has sent the first information to a maximum number of retransmissions or to instruct the terminal to perform RRC reconstruction; the first base station represents the secondary base station to which the terminal is connected when operating in DC mode; and / or,

[0054] Receive the fifth information sent by the first base station and / or the sixth information sent by the first terminal; the fifth information represents the situation in which the first base station retransmits data to the terminal when receiving the third information; the sixth information is used to indicate that the terminal has not successfully received the first information or has not received the second information when the first timer expires.

[0055] Optionally, in the above solution, the fourth information includes at least one of the following:

[0056] the remaining timing length of the first timer;

[0057] The set timing length of the first timer;

[0058] the length of time the first timer has run;

[0059] The ratio of the remaining timing length to the set timing length;

[0060] The ratio of the running timing length to the set timing length.

[0061] Optionally, in the above solution, the fifth information includes at least one of the following:

[0062] The remaining number of retransmissions by the first base station to the terminal;

[0063] a ratio of the remaining number of retransmissions to the maximum number of retransmissions;

[0064] A ratio of the number of retransmissions completed by the first base station to the terminal to the maximum number of retransmissions.

[0065] Optionally, the method further comprises:

[0066] Sending a reconfiguration of the maximum number of retransmission times to the first base station; and / or,

[0067] The reconfigured set timing length of the first timer is sent to the terminal.

[0068] The present application also provides a communication device, including:

[0069] a first sending unit, configured to send second information to a terminal; the first base station represents a secondary base station to which the terminal is connected when the terminal works in a DC mode; the second information is used to indicate that the first base station has sent the first information to a maximum number of retransmissions or to indicate that the terminal performs RRC reconstruction; and / or,

[0070] A stopping unit is used to stop transmitting the first information to the terminal when receiving the third information sent by the terminal; the third information is used to indicate that the first timer of the terminal has expired; the first timer is used to trigger the terminal to perform RRC reconstruction after the expiration of the timer.

[0071] The present application also provides a communication device, including:

[0072] A first reconstruction unit is configured to perform RRC reconstruction upon receiving the second information sent by the first base station; the second information is used to indicate that the first base station has sent the first information for a maximum number of retransmissions or to indicate that the terminal performs RRC reconstruction; and / or,

[0073] The first sending unit is configured to report third information to the network side; wherein the third information is used to indicate that the first timer of the terminal has expired; wherein,

[0074] The first base station represents a secondary base station to which the terminal is connected when operating in the DC mode.

[0075] The present application also provides a communication device, including:

[0076] a first receiving unit, configured to receive fourth information sent by the terminal; the fourth information represents the operation of the first timer when the terminal receives the second information; the second information is used to indicate that the first base station has sent the first information for a maximum number of retransmissions or to instruct the terminal to perform RRC reconstruction; the first base station represents the secondary base station to which the terminal is connected when operating in DC mode; and / or,

[0077] A second receiving unit is used to receive the fifth information sent by the first base station and / or the sixth information sent by the first terminal; the fifth information represents the situation in which the first base station retransmits data to the terminal when receiving the third information; the sixth information is used to indicate that the terminal has not successfully received the first information or has not received the second information when the first timer expires.

[0078] The embodiment of the present application further provides a first base station, wherein the first base station represents a secondary base station to which the terminal is connected when operating in a DC mode; the first base station includes: a first processor and a first communication interface; wherein,

[0079] The first communication interface is used to send second information to the terminal; the second information is used to indicate that the first base station has sent the first information to a maximum number of retransmissions or to indicate that the terminal performs RRC reconstruction; and / or,

[0080] The first communication interface is used to stop transmitting the first information to the terminal when receiving the third information sent by the terminal; the third information is used to indicate that the first timer of the terminal has expired; and the first timer is used to trigger the terminal to perform RRC reconstruction after the expiration of the timer.

[0081] The embodiment of the present application further provides a terminal, comprising: a second processor and a second communication interface; wherein,

[0082] The second communication interface is used to perform RRC reconstruction when receiving the second information sent by the first base station; the second information is used to indicate that the first base station has sent the first information to a maximum number of retransmissions or to instruct the terminal to perform RRC reconstruction; and / or,

[0083] The second communication interface is used to report third information to the network side; wherein the third information is used to indicate that the first timer of the terminal has expired; wherein,

[0084] The first base station represents a secondary base station to which the terminal is connected when operating in the DC mode.

[0085] The embodiment of the present application further provides a second base station, wherein the second base station represents a main base station to which the terminal is connected when operating in DC mode; the second base station includes: a third processor and a third communication interface; wherein,

[0086] a third communication interface, used to receive fourth information sent by the terminal; the fourth information represents the operation status of the first timer when the terminal receives the second information; the second information is used to indicate that the first base station has sent the first information to a maximum number of retransmissions or to instruct the terminal to perform RRC reconstruction; the first base station represents the secondary base station to which the terminal is connected when operating in DC mode; and / or,

[0087] A third communication interface is used to receive the fifth information sent by the first base station and / or the sixth information sent by the first terminal; the fifth information represents a situation in which the first base station retransmits data to the terminal when receiving the third information; the sixth information is used to indicate that the terminal has not successfully received the first information or has not received the second information when the first timer expires.

[0088] The embodiment of the present application further provides a first base station, comprising: a first processor and a first memory for storing a computer program that can be run on the processor,

[0089] The first processor is used to execute the steps of any one of the above-mentioned methods on the first base station side when running the computer program.

[0090] The embodiment of the present application further provides a terminal, comprising: a second processor and a second memory for storing a computer program that can be run on the processor,

[0091] Wherein, the second processor is used to execute the steps of any of the above-mentioned terminal-side methods when running the computer program.

[0092] The embodiment of the present application further provides a second base station, comprising: a third processor and a third memory for storing a computer program that can be run on the processor,

[0093] The third processor is used to execute the steps of any one of the above-mentioned methods on the second base station side when running the computer program.

[0094] An embodiment of the present application also provides a storage medium having a computer program stored thereon, characterized in that when the computer program is executed by a processor, it implements the steps of any of the methods on the first base station side, or implements the steps of any of the methods on the terminal side, or implements the steps of any of the methods on the second base station side.

[0095] In the communication method, device, base station, terminal and storage medium provided by the embodiments of the present application, the first base station, that is, the auxiliary base station connected when the terminal works in the DC mode, sends a second message to the terminal, and the second message is used to indicate that the first base station has sent the first message and reached the maximum number of retransmissions, or to indicate that the terminal performs RRC reconstruction, so that the terminal can start RRC reconstruction without waiting for the first timer used to trigger the terminal to perform RRC reconstruction to expire, which effectively improves the communication efficiency of the terminal. And / or, after the first timer expires, the terminal sends a third message to the first base station to indicate that the first timer of the terminal has expired, and the first base station stops transmitting the first information to the terminal when receiving the third message, thereby avoiding the first base station from still sending the first message to the terminal when the terminal has initiated RRC reconstruction, and avoiding the waste of transmission resources between the first base station and the terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0096] Figure 1 A flow chart of a communication method according to an embodiment of the present application;

[0097] Figure 2 This is a flow chart of another communication method according to an embodiment of the present application;

[0098] Figure 3 This is a schematic diagram of the third communication method flow in the embodiment of the present application;

[0099] Figure 4 This is a schematic diagram of the structure of a communication device according to an embodiment of the present application;

[0100] Figure 5 This is a schematic diagram of another communication device structure according to an embodiment of the present application;

[0101] Figure 6 This is a schematic diagram of the structure of a third communication device according to an embodiment of the present application;

[0102] Figure 7 This is a schematic diagram of the structure of the first base station in an embodiment of the present application;

[0103] Figure 8 This is a schematic diagram of the terminal structure of an embodiment of the present application;

[0104] Fig. 9 This is a schematic diagram of the structure of the second base station in an embodiment of the present application. DETAILED DESCRIPTION

[0105] In the DC scenario, by configuring a fast MCG connection recovery mechanism for the terminal, the terminal can avoid initiating reconstruction and entering an idle state. Specifically, under this mechanism, once the terminal detects that the MCG has a radio link failure (RLF), it can suspend the transmission of all radio bearers of the MCG, and forward information representing the MCG error to the master base station (MN, Master eNodeB) through the secondary cell group (SCG, Secondary Cell Group), such as the cell measurement results of the MCG and / or SCG measured by the terminal. The terminal is configured with a T316 timer. During the timing of the T316 timer, the terminal may receive RRC reconfiguration, switching, RRC release and other messages forwarded by the MN through the SCG, and then perform subsequent operations. If the terminal has not received any message from the MN when the T316 timer expires, the terminal will initiate the RRC reconstruction process again.

[0106] In the related art, there are the following two scenarios:

[0107] 1. When the T316 timer expires, the terminal performs RRC reestablishment. However, if the SN has not reached the maximum number of retransmissions at this time, the SN will continue to try to forward the MN's message to the terminal, resulting in a waste of transmission resources between the SN and the terminal.

[0108] 2. The SN has reached the maximum number of retransmissions, but the T316 timer of the terminal has not expired. At this time, the SN no longer forwards the message of the MN, but the terminal still needs to wait until the T316 timer expires before reestablishing the RRC, which affects the communication efficiency of the terminal.

[0109] Based on this, in each embodiment of the present application, when the first base station, that is, the auxiliary base station connected when the terminal works in DC mode, transmits the first information to the terminal to the maximum and the number of retransmissions, the first base station sends the second information to the terminal, and the second information is used to indicate that the first base station has reached the maximum number of retransmissions, or to indicate that the terminal performs RRC reconstruction, so that the terminal does not need to wait until the first timer used to trigger the terminal to perform RRC reconstruction expires to start RRC reconstruction, which effectively improves the communication efficiency of the terminal. And / or, after the first timer expires, the terminal sends the third information to the first base station to indicate the expiration of the first timer of the terminal, and the first base station stops transmitting the first information to the terminal when receiving the third information, thereby avoiding the first base station still sending the first information to the terminal when the terminal has initiated RRC reconstruction, and avoiding the waste of transmission resources between the first base station and the terminal.

[0110] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0111] The embodiment of the present application provides a communication method, which is applied to a first base station; the first base station represents a secondary base station to which the terminal is connected when operating in a DC mode. Figure 1 , the method comprising:

[0112] Step 101: Send second information to the terminal; and / or, upon receiving third information sent by the terminal, stop transmitting the first information to the terminal.

[0113] Among them, the second information is used to indicate that the first base station has sent the first information for a maximum number of retransmissions or to instruct the terminal to perform RRC reconstruction; the third information is used to indicate that the first timer of the terminal has expired; and the first timer is used to trigger the terminal to perform RRC reconstruction after the expiration of the timer.

[0114] In one embodiment, the sending the second information to the terminal includes:

[0115] When the first base station sends the first information to the terminal for a maximum number of retransmissions, the first base station sends second information to the terminal.

[0116] In actual application, the first information may include relevant information such as RRC reconfiguration, switching, RRC release, etc. forwarded by the first base station to the terminal. Usually, when a fast MCG connection recovery mechanism is configured for the terminal, once the terminal detects that the MCG has generated an RLF, the transmission of all wireless bearers of the MCG is suspended. At this time, the first information is sent by the second base station, that is, the main base station to which the terminal is connected when working in DC mode, to the first base station, and then forwarded to the terminal by the first base station.

[0117] Here, in the case where the first base station sends the first information to the terminal and the maximum number of retransmissions is reached, and the first timer on the terminal side, such as the T316 timer, has not expired, the first base station will notify the terminal through the second information when the maximum number of retransmissions is reached, indicating that the first base station has reached the maximum number of retransmissions, or directly instruct the terminal to perform RRC reconstruction. In this way, the terminal does not need to wait until the first timer expires to start RRC reconstruction, which effectively improves the communication efficiency of the terminal.

[0118] In one embodiment, the first base station may send the second information to the terminal in the following manner:

[0119] The second information is carried in the first information last retransmitted by the first base station to the terminal; and / or,

[0120] The second information is carried in a set sequence, DCI, MACCE, or a set pulse signal sent by the first base station to the terminal.

[0121] Furthermore, since the first timer of the terminal has not expired when the second information is received, the terminal can report the operation status of the first timer when the second information is received to the network side, so that the network side can make relevant adjustments to the configuration of the fast MCG connection recovery mechanism, including optimizing the timing duration of the first timer, and / or increasing the maximum number of retransmissions. For example, if the reported information reflects that the remaining timing length of the first timer of the terminal is still very long, or the proportion of the remaining timing length in the set timing length of the first timer is greater than the proportion of the running timing length in the set timing length, then the network side can reconfigure a shorter timing duration for the first timer, or can reconfigure a larger maximum number of retransmissions, so that the expiration of the first timer and the arrival of the maximum number of retransmissions can be achieved at the same time in the subsequent period.

[0122] In actual application, the terminal may report the operation status of the first timer when receiving the second information to the first base station or the base station connected after RRC reestablishment. In the case where the terminal reports the operation status of the first timer when receiving the second information to the first base station, the method further includes:

[0123] Receive fourth information.

[0124] The fourth information represents the operation status of the first timer when the terminal receives the second information.

[0125] Specifically, the fourth information includes at least one of the following:

[0126] the remaining timing length of the first timer;

[0127] The set timing length of the first timer;

[0128] the length of time the first timer has run;

[0129] The ratio of the remaining timing length to the set timing length;

[0130] The ratio of the running timing length to the set timing length.

[0131] In one embodiment, the method further comprises:

[0132] Based on the fourth information, the maximum number of retransmissions is reconfigured and / or the reconfigured setting timing length of the first timer is sent to the terminal.

[0133] In addition, in the case where the first base station sends the first information to the terminal but the maximum number of retransmissions has not been reached, and the first timer on the terminal side has expired, the terminal will notify the first base station through the third information when the first timer expires, indicating that the first timer has expired. Upon receiving the third information, the first base station stops transmitting the first information to the terminal, thereby avoiding the first base station from sending the first information to the terminal when the terminal has initiated RRC reconstruction, thereby avoiding waste of transmission resources between the first base station and the terminal.

[0134] In one embodiment, after receiving the third information sent by the terminal, the method further includes:

[0135] reconfiguring the maximum number of retransmissions and / or sending the reconfigured set timing length of the first timer to the terminal; and / or,

[0136] The fifth information is sent to the second base station.

[0137] The second base station represents the main base station to which the terminal is connected when operating in the DC mode; and the fifth information represents the situation in which the first base station retransmits data to the terminal upon receiving the third information.

[0138] In one embodiment, the fifth information includes at least one of the following:

[0139] The remaining number of retransmissions by the first base station to the terminal;

[0140] a ratio of the remaining number of retransmissions to the maximum number of retransmissions;

[0141] A ratio of the number of retransmissions completed by the first base station to the terminal to the maximum number of retransmissions.

[0142] Specifically, while the first base station receives the third information sent by the terminal, the network side makes relevant adjustments to the configuration of the fast MCG connection recovery mechanism according to the retransmission situation of the first information sent by the first base station to the terminal at this time, such as the remaining number of retransmissions, the proportion of the remaining number of retransmissions in the maximum number of retransmissions, or the proportion of the number of retransmissions in the maximum number of retransmissions, including optimizing the timing duration of the first timer and / or increasing the maximum number of retransmissions. For example, when the first timer expires, there are still many remaining retransmissions of the first base station, then the network side can reconfigure the first timer with a longer timing duration for the terminal, so that the terminal can have more opportunities to receive the information of the second base station forwarded by the first base station, avoiding the terminal from entering an unnecessary RRC reconstruction process; or, the network side can configure a smaller maximum number of retransmissions to avoid unnecessary data retransmissions by the first base station to the terminal.

[0143] In actual application, the network side may reconfigure the timing duration of the first timer or the maximum number of retransmissions by the first base station, the second base station or other network devices.

[0144] In one embodiment, the reconfiguring the maximum number of retransmissions and / or sending the reconfigured set timing length of the first timer to the terminal includes:

[0145] receiving sixth information sent by the terminal; the sixth information is used to indicate that the terminal has not successfully received the first information or has not received the second information when the first timer expires;

[0146] Based on the fifth information and the sixth information, the maximum number of retransmissions is reconfigured and / or the reconfigured set timing length of the first timer is sent to the terminal.

[0147] Here, after the first timer expires, the terminal will feedback the sixth information to the network side, indicating that the terminal has not successfully received the first information or has not received the second information when the first timer expires. If the first base station receives the sixth information feedback from the terminal, it will make relevant adjustments to the configuration of the fast MCG connection recovery mechanism, including optimizing the timing duration of the first timer and / or increasing the maximum number of retransmissions.

[0148] If the terminal sends the sixth information to the second base station, the second base station makes relevant adjustments to the configuration of the fast MCG connection recovery mechanism, including optimizing the timing duration of the first timer, and / or increasing the maximum number of retransmissions. If the maximum number of retransmissions is reconfigured, the second base station sends the reconfigured maximum number of retransmissions to the second base station. Therefore, after sending the fifth information to the second base station, the method also includes:

[0149] Receive the reconfigured maximum number of retransmission times sent by the second base station.

[0150] Correspondingly, the embodiment of the present application also provides a communication method, which is applied to a terminal. Figure 2 , the method comprising:

[0151] Step 201: upon receiving the second information sent by the first base station, perform RRC reconstruction; and / or report third information to the network side.

[0152] Among them, the second information is used to indicate that the first base station has sent the first information and reached the maximum number of retransmissions or instructs the terminal to perform RRC reconstruction; the third information is used to indicate that the first timer of the terminal has expired; and the first base station represents the secondary base station to which the terminal is connected when working in DC mode.

[0153] In one embodiment, the second information is carried in the first information last retransmitted by the first base station to the terminal; and / or,

[0154] The second information is carried in a set sequence, DCI, MACCE, or a set pulse signal sent by the first base station to the terminal.

[0155] In one embodiment, the method further comprises:

[0156] Sending fourth information to the network side; the fourth information represents the operation status of the first timer when the terminal receives the second information.

[0157] In one embodiment, the fourth information includes at least one of the following:

[0158] The remaining time length of the first timer;

[0159] The set timing length of the first timer;

[0160] the length of time the first timer has run;

[0161] The ratio of the remaining timing length to the set timing length;

[0162] The ratio of the running timing length to the set timing length.

[0163] In one embodiment, the method further comprises:

[0164] Sending sixth information to the network side; the sixth information is used to indicate that the terminal has not successfully received the first information or has not received the second information when the first timer expires.

[0165] In one embodiment, the method further comprises:

[0166] Receive the reconfigured set timing length of the first timer sent by the network side.

[0167] Correspondingly, the embodiment of the present application further provides a communication method, which is applied to a second base station; the second base station represents a primary base station to which the terminal is connected when operating in a DC mode. Figure 3 , the method comprising:

[0168] Step 301: receiving fourth information sent by the terminal; and / or receiving fifth information sent by the first base station and / or sixth information sent by the first terminal.

[0169] Among them, the fourth information represents the operation status of the first timer when the terminal receives the second information; the second information is used to indicate that the first base station has sent the first information and reached the maximum number of retransmissions or instructs the terminal to perform RRC reconstruction; the first base station represents the auxiliary base station connected when the terminal works in DC mode; the fifth information represents the situation where the first base station retransmits data to the terminal when receiving the third information; the sixth information is used to indicate that the terminal has not successfully received the first information or has not received the second information when the first timer expires.

[0170] In one embodiment, the fourth information includes at least one of the following:

[0171] the remaining timing length of the first timer;

[0172] The set timing length of the first timer;

[0173] the length of time the first timer has run;

[0174] The ratio of the remaining timing length to the set timing length;

[0175] The ratio of the running timing length to the set timing length.

[0176] In one embodiment, the fifth information includes at least one of the following:

[0177] The remaining number of retransmissions by the first base station to the terminal;

[0178] a ratio of the remaining number of retransmissions to the maximum number of retransmissions;

[0179] A ratio of the number of retransmissions completed by the first base station to the terminal to the maximum number of retransmissions.

[0180] In one embodiment, the method further comprises:

[0181] Sending a reconfiguration of the maximum number of retransmission times to the first base station; and / or,

[0182] The reconfigured set timing length of the first timer is sent to the terminal.

[0183] In actual application, the problems in the two scenarios mentioned above are caused by the mismatch between the maximum number of retransmissions of the SN and the T316 timer of the terminal. Although the maximum number of retransmissions of the SN and the T316 timer of the terminal are both configured by the MN or NS, it is difficult to configure the maximum number of retransmissions of the SN and the T316 timer of the terminal to an ideal state during configuration when the operator or equipment manufacturer does not have prior information. Here, the ideal state can be understood as that when the T316 timer expires, the SN just reaches the maximum number of retransmissions. Therefore, in an embodiment of the present application, in order to achieve the matching of terminal behavior and SN behavior, information is shared between the terminal and the SN. For example, the terminal notifies the SN that the T316 timer has expired, then the SN will no longer continue to forward the message of the MN, avoiding the waste of transmission resources between the SN and the terminal. For another example, the SN notifies the terminal that the maximum number of retransmissions has been reached, then the terminal does not need to wait until the first timer used to trigger the terminal to perform RRC reconstruction expires to start RRC reconstruction, effectively improving the communication efficiency of the terminal. Furthermore, in order to enable the network side to reasonably configure the maximum number of retransmissions counted by the SN and the T316 timer counted by the terminal, the terminal can report relevant information of the T316 timer to the network side, or the first base station can report the retransmission situation to the network side, thereby further optimizing the fast MCG connection recovery mechanism.

[0184] In order to implement the method on the first base station side of the embodiment of the present application, the embodiment of the present application also provides a communication device, which is arranged on the first base station, such as Figure 4 As shown, the device comprises:

[0185] The first sending unit 401 is used to send second information to the terminal; the first base station represents the secondary base station to which the terminal is connected when working in DC mode; the second information is used to indicate that the first base station has sent the first information to a maximum number of retransmissions or to instruct the terminal to perform RRC reconstruction; and / or,

[0186] The stopping unit 402 is used to stop transmitting the first information to the terminal when receiving the third information sent by the terminal; the third information is used to indicate that the first timer of the terminal has expired; the first timer is used to trigger the terminal to perform RRC reconstruction after the expiration of the timer.

[0187] In one embodiment, the first sending unit 401 is used to:

[0188] When the first base station sends the first information to the terminal for a maximum number of retransmissions, the first base station sends second information to the terminal.

[0189] In one embodiment, the second information is carried in the first information last retransmitted by the first base station to the terminal; and / or, the second information is carried in a set sequence or DCI or MAC CE or a set pulse signal sent by the first base station to the terminal.

[0190] In one embodiment, the device further comprises:

[0191] The third receiving unit is used to receive fourth information; the fourth information represents the operation status of the first timer when the terminal receives the second information.

[0192] In one embodiment, the fourth information includes at least one of the following:

[0193] the remaining timing length of the first timer;

[0194] The set timing length of the first timer;

[0195] the length of time the first timer has run;

[0196] The ratio of the remaining timing length to the set timing length;

[0197] The ratio of the running timing length to the set timing length.

[0198] In one embodiment, the device further comprises:

[0199] The first configuration unit is used to reconfigure the maximum number of retransmissions and / or send the reconfigured set timing length of the first timer to the terminal based on the fourth information.

[0200] In one embodiment, the device further comprises:

[0201] a second configuration unit, configured to reconfigure the maximum number of retransmissions and / or send the reconfigured set timing length of the first timer to the terminal after receiving the third information sent by the terminal; and / or,

[0202] The second sending unit is used to send the fifth information to the second base station; the second base station represents the main base station connected when the terminal works in DC mode; the fifth information represents the situation where the first base station retransmits data to the terminal when receiving the third information.

[0203] In one embodiment, the fifth information includes at least one of the following:

[0204] The remaining number of retransmissions by the first base station to the terminal;

[0205] a ratio of the remaining number of retransmissions to the maximum number of retransmissions;

[0206] A ratio of the number of retransmissions completed by the first base station to the terminal to the maximum number of retransmissions.

[0207] In one embodiment, the first configuration unit is used to:

[0208] receiving sixth information sent by the terminal; the sixth information is used to indicate that the terminal has not successfully received the first information or has not received the second information when the first timer expires;

[0209] Based on the fifth information and the sixth information, the maximum number of retransmissions is reconfigured and / or the reconfigured set timing length of the first timer is sent to the terminal.

[0210] In one embodiment, the device further comprises:

[0211] The fourth receiving unit is used to receive the reconfigured maximum number of retransmissions sent by the second base station after sending the fifth information to the second base station.

[0212] In actual application, the above-mentioned units can be implemented by a communication interface and / or a processor in a communication device.

[0213] In order to implement the method on the terminal side of the embodiment of the present application, the embodiment of the present application also provides a communication device, which is arranged on the terminal, such as Figure 5 As shown, the device comprises:

[0214] The first reconstruction unit 501 is configured to perform RRC reconstruction upon receiving the second information sent by the first base station; the second information is used to indicate that the first base station has sent the first information for a maximum number of retransmissions or to indicate that the terminal performs RRC reconstruction; and / or,

[0215] The first sending unit 502 is used to report third information to the network side; wherein the third information is used to indicate that the first timer of the terminal has expired; wherein,

[0216] The first base station represents a secondary base station to which the terminal is connected when operating in the DC mode.

[0217] The second information is carried in the first information last retransmitted by the first base station to the terminal; and / or the second information is carried in a set sequence or DCI or MACCE or a set pulse signal sent by the first base station to the terminal.

[0218] In one embodiment, the device further comprises:

[0219] The third sending unit is used to send fourth information to the network side; the fourth information represents the operation status of the first timer when the terminal receives the second information.

[0220] In one embodiment, the fourth information includes at least one of the following:

[0221] The remaining time length of the first timer;

[0222] The set timing length of the first timer;

[0223] the length of time the first timer has run;

[0224] The ratio of the remaining timing length to the set timing length;

[0225] The ratio of the running timing length to the set timing length.

[0226] In one embodiment, the device further comprises:

[0227] The fourth sending unit is used to send sixth information to the network side; the sixth information is used to indicate that the terminal has not successfully received the first information or has not received the second information when the first timer expires.

[0228] In one embodiment, the device further comprises:

[0229] The fifth receiving unit is used to receive the set timing length of the reconfigured first timer sent by the network side.

[0230] In actual application, the above-mentioned units can be implemented by a communication interface in a communication device.

[0231] In order to implement the method on the second base station side of the embodiment of the present application, the embodiment of the present application also provides a communication device, which is arranged on the second base station, such as Figure 6 As shown, the device comprises:

[0232] The first receiving unit 601 is used to receive the fourth information sent by the terminal; the fourth information represents the operation status of the first timer when the terminal receives the second information; the second information is used to indicate that the first base station has sent the first information to a maximum number of retransmissions or to instruct the terminal to perform RRC reconstruction; the first base station represents the secondary base station to which the terminal is connected when working in DC mode; and / or,

[0233] The second receiving unit 602 is used to receive the fifth information sent by the first base station and / or the sixth information sent by the first terminal; the fifth information represents the situation in which the first base station retransmits data to the terminal when receiving the third information; the sixth information is used to indicate that the terminal has not successfully received the first information or has not received the second information when the first timer expires.

[0234] In one embodiment, the fourth information includes at least one of the following:

[0235] the remaining timing length of the first timer;

[0236] The set timing length of the first timer;

[0237] the length of time the first timer has run;

[0238] The ratio of the remaining timing length to the set timing length;

[0239] The ratio of the running timing length to the set timing length.

[0240] In one embodiment, the fifth information includes at least one of the following:

[0241] The remaining number of retransmissions by the first base station to the terminal;

[0242] a ratio of the remaining number of retransmissions to the maximum number of retransmissions;

[0243] A ratio of the number of retransmissions completed by the first base station to the terminal to the maximum number of retransmissions.

[0244] In one embodiment, the device further comprises:

[0245] A fifth sending unit is used to send a reconfigured maximum number of retransmission times to the first base station; and / or send a reconfigured set timing length of the first timer to the terminal.

[0246] In actual application, the above-mentioned units can be implemented by a communication interface in a communication device.

[0247] It should be noted that: when the communication device provided in the above embodiment performs communication, only the division of the above program modules is used as an example. In actual applications, the above processing can be assigned to different program modules as needed, that is, the internal structure of the device is divided into different program modules to complete all or part of the processing described above. In addition, the communication device and the communication method embodiment provided in the above embodiment belong to the same concept, and the specific implementation process is detailed in the method embodiment, which will not be repeated here.

[0248] Based on the hardware implementation of the above program module, and in order to implement the method on the first base station side of the embodiment of the present application, the embodiment of the present application also provides a first base station, such as Figure 7 As shown, the first base station 700 includes:

[0249] The first communication interface 701 is capable of exchanging information with other network nodes;

[0250] The first processor 702 is connected to the first communication interface 701 to implement information exchange with other network nodes, and is used to execute the method provided by one or more technical solutions of the first base station side when running a computer program. The computer program is stored in the first memory 703.

[0251] Specifically, the first communication interface 701 is used to send second information to the terminal; the first base station represents the secondary base station to which the terminal is connected when working in DC mode; the second information is used to indicate that the first base station has sent the first information to a maximum number of retransmissions or to instruct the terminal to perform RRC reconstruction; and / or,

[0252] Used to stop transmitting the first information to the terminal when receiving the third information sent by the terminal; the third information is used to indicate that the first timer of the terminal has expired; the first timer is used to trigger the terminal to perform RRC reconstruction after the expiration of the timer.

[0253] In one embodiment, the first communication interface 701 is used to send second information to the terminal when the first base station sends the first information to the terminal for a maximum number of retransmissions.

[0254] In one embodiment, the second information is carried in the first information last retransmitted by the first base station to the terminal; and / or, the second information is carried in a set sequence or DCI or MAC CE or a set pulse signal sent by the first base station to the terminal.

[0255] In one embodiment, the first communication interface 701 is further used as a third receiving unit for receiving fourth information; the fourth information represents the operation status of the first timer when the terminal receives the second information.

[0256] In one embodiment, the fourth information includes at least one of the following:

[0257] the remaining timing length of the first timer;

[0258] The set timing length of the first timer;

[0259] the length of time the first timer has run;

[0260] The ratio of the remaining timing length to the set timing length;

[0261] The ratio of the running timing length to the set timing length.

[0262] In one embodiment, the first processor 702 is further configured to reconfigure the maximum number of retransmissions and / or send the reconfigured set timing length of the first timer to the terminal based on the fourth information.

[0263] In one embodiment, the first processor 702 is further configured to, after receiving the third information sent by the terminal, reconfigure the maximum number of retransmissions and / or send the reconfigured set timing length of the first timer to the terminal; and / or,

[0264] The first communication interface 701 is also used to send the fifth information to the second base station; the second base station represents the main base station to which the terminal is connected when working in DC mode; the fifth information represents the situation in which the first base station retransmits data to the terminal when receiving the third information.

[0265] In one embodiment, the fifth information includes at least one of the following:

[0266] The remaining number of retransmissions by the first base station to the terminal;

[0267] a ratio of the remaining number of retransmissions to the maximum number of retransmissions;

[0268] A ratio of the number of retransmissions completed by the first base station to the terminal to the maximum number of retransmissions.

[0269] In one embodiment, the first communication interface 701 is used to receive sixth information sent by the terminal; the sixth information is used to indicate that the terminal has not successfully received the first information or has not received the second information when the first timer expires;

[0270] The first communication interface 701 is combined with the first processor 702 to reconfigure the maximum number of retransmissions and / or send the reconfigured set timing length of the first timer to the terminal based on the fifth information and the sixth information.

[0271] In one embodiment, the first communication interface 701 is further configured to receive a reconfigured maximum number of retransmission times issued by the second base station after sending the fifth information to the second base station.

[0272] It should be noted that the specific processing process of the first processor 702 and the first communication interface 701 can be understood by referring to the above method.

[0273] Of course, in actual application, the various components in the first base station 700 are coupled together through the bus system 704. It can be understood that the bus system 704 is used to realize the connection and communication between these components. In addition to the data bus, the bus system 704 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clarity, Figure 7 Various buses are labeled as bus system 704 .

[0274] The first memory 703 in the embodiment of the present application is used to store various types of data to support the operation of the first base station 700. Examples of such data include: any computer program used to operate on the first base station 700.

[0275] The method disclosed in the above embodiment of the present application can be applied to the first processor 702, or implemented by the first processor 702. The first processor 702 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by an integrated logic circuit of hardware or software instructions in the first processor 702. The above-mentioned first processor 702 may be a general-purpose processor, a digital signal processor (DSP, Digital Signal Processor), or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The first processor 702 can implement or execute the various methods, steps and logic block diagrams disclosed in the embodiments of the present application. A general-purpose processor may be a microprocessor or any conventional processor, etc. In combination with the steps of the method disclosed in the embodiment of the present application, it can be directly embodied as a hardware decoding processor to execute, or it can be executed by a combination of hardware and software modules in the decoding processor. The software module may be located in a storage medium, which is located in the first memory 703, and the first processor 702 reads the information in the first memory 703 and completes the steps of the above method in combination with its hardware.

[0276] In an exemplary embodiment, the first base station 700 can be implemented by one or more application-specific integrated circuits (ASIC), DSP, programmable logic device (PLD), complex programmable logic device (CPLD), field-programmable gate array (FPGA), general-purpose processor, controller, microcontroller (MCU), microprocessor, or other electronic components to execute the aforementioned method.

[0277] Based on the hardware implementation of the above program modules, and in order to implement the method on the terminal side of the embodiment of the present application, the embodiment of the present application also provides a terminal, such as Figure 8 As shown, the terminal 800 includes:

[0278] The second communication interface 801 is capable of exchanging information with other network nodes;

[0279] The second processor 802 is connected to the second communication interface 801 to implement information exchange with other network nodes, and is used to execute the method provided by one or more technical solutions of the terminal side when running a computer program. The computer program is stored in the second memory 803.

[0280] Specifically, the second communication interface 801 is used to perform RRC reconstruction when receiving the second information sent by the first base station; the second information is used to indicate that the first base station has sent the first information for a maximum number of retransmissions or to instruct the terminal to perform RRC reconstruction; and / or, to report third information to the network side; wherein the third information is used to indicate that the first timer of the terminal has expired;

[0281] in,

[0282] The first base station represents a secondary base station to which the terminal is connected when operating in the DC mode.

[0283] The second information is carried in the first information last retransmitted by the first base station to the terminal; and / or the second information is carried in a set sequence or DCI or MACCE or a set pulse signal sent by the first base station to the terminal.

[0284] In one embodiment, the second communication interface 801 is further used to send fourth information to the network side; the fourth information represents the operation status of the first timer when the terminal receives the second information.

[0285] In one embodiment, the fourth information includes at least one of the following:

[0286] The remaining time length of the first timer;

[0287] The set timing length of the first timer;

[0288] the length of time the first timer has run;

[0289] The ratio of the remaining timing length to the set timing length;

[0290] The ratio of the running timing length to the set timing length.

[0291] In one embodiment, the second communication interface 801 is further used to send sixth information to the network side; the sixth information is used to indicate that the terminal has not successfully received the first information or has not received the second information when the first timer expires.

[0292] In one embodiment, the second communication interface 801 is further configured to receive a reconfigured set timing length of the first timer sent from the network side.

[0293] It should be noted that the specific processing process of the second processor 802 and the second communication interface 801 can be understood by referring to the above method.

[0294] Of course, in actual application, the various components in the terminal 800 are coupled together through the bus system 804. It can be understood that the bus system 804 is used to realize the connection and communication between these components. In addition to the data bus, the bus system 804 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clarity, Figure 8 Various buses are labeled as bus system 804 .

[0295] The second memory 803 in the embodiment of the present application is used to store various types of data to support the operation of the terminal 800. Examples of such data include: any computer program used to operate on the terminal 800.

[0296] The method disclosed in the above embodiment of the present application can be applied to the second processor 802, or implemented by the second processor 802. The second processor 802 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the hardware integrated logic circuit or software instructions in the second processor 802. The above-mentioned second processor 802 may be a general-purpose processor, DSP, or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The second processor 802 can implement or execute the various methods, steps and logic block diagrams disclosed in the embodiments of the present application. A general-purpose processor may be a microprocessor or any conventional processor, etc. In combination with the steps of the method disclosed in the embodiment of the present application, it can be directly embodied as a hardware decoding processor to execute, or it can be executed by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium, which is located in the second memory 803. The second processor 802 reads the information in the second memory 803 and completes the steps of the above method in combination with its hardware.

[0297] In an exemplary embodiment, the terminal 800 may be implemented by one or more ASICs, DSPs, PLDs, CPLDs, FPGAs, general purpose processors, controllers, MCUs, Microprocessors, or other electronic components to perform the aforementioned methods.

[0298] Based on the hardware implementation of the above program module, and in order to implement the method on the second base station side of the embodiment of the present application, the embodiment of the present application also provides a second base station, such as Fig. 9 As shown, the second base station 900 includes:

[0299] The third communication interface 901 is capable of exchanging information with other network nodes;

[0300] The third processor 902 is connected to the third communication interface 901 to implement information exchange with other network nodes, and is used to execute the method provided by one or more technical solutions of the second base station side when running a computer program. The computer program is stored in the third memory 903.

[0301] Specifically, the third communication interface 901 is used to receive the fourth information sent by the terminal; the fourth information represents the operation status of the first timer when the terminal receives the second information; the second information is used to indicate that the first base station has sent the first information and the maximum number of retransmissions has been reached or to instruct the terminal to perform RRC reconstruction; the first base station represents the auxiliary base station to which the terminal is connected when working in DC mode; and / or, is used to receive the fifth information sent by the first base station and / or the sixth information sent by the first terminal; the fifth information represents the situation in which the first base station retransmits data to the terminal when receiving the third information; the sixth information is used to indicate that the terminal has not successfully received the first information or has not received the second information when the first timer expires.

[0302] In one embodiment, the fourth information includes at least one of the following:

[0303] the remaining timing length of the first timer;

[0304] The set timing length of the first timer;

[0305] the length of time the first timer has run;

[0306] The ratio of the remaining timing length to the set timing length;

[0307] The ratio of the running timing length to the set timing length.

[0308] In one embodiment, the fifth information includes at least one of the following:

[0309] The remaining number of retransmissions by the first base station to the terminal;

[0310] a ratio of the remaining number of retransmissions to the maximum number of retransmissions;

[0311] A ratio of the number of retransmissions completed by the first base station to the terminal to the maximum number of retransmissions.

[0312] In one embodiment, the third communication interface 901 is further used to send a reconfigured maximum number of retransmission times to the first base station; and / or send a reconfigured set timing length of the first timer to the terminal.

[0313] Of course, in actual application, the various components in the second base station 900 are coupled together through the bus system 904. It can be understood that the bus system 904 is used to realize the connection and communication between these components. In addition to the data bus, the bus system 904 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clarity, Fig. 9 Various buses are labeled as bus system 904.

[0314] The third memory 903 in the embodiment of the present application is used to store various types of data to support the operation of the second base station 900. Examples of such data include: any computer program used to operate on the second base station 900.

[0315] The method disclosed in the above embodiment of the present application can be applied to the third processor 902, or implemented by the third processor 902. The third processor 902 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by an integrated logic circuit of the hardware in the third processor 902 or an instruction in the form of software. The above-mentioned third processor 902 may be a general-purpose processor, a DSP, or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The third processor 902 can implement or execute the various methods, steps and logic block diagrams disclosed in the embodiments of the present application. A general-purpose processor may be a microprocessor or any conventional processor, etc. In combination with the steps of the method disclosed in the embodiment of the present application, it can be directly embodied as a hardware decoding processor to execute, or it can be executed by a combination of hardware and software modules in the decoding processor. The software module may be located in a storage medium, which is located in the third memory 903, and the third processor 902 reads the information in the third memory 903 and completes the steps of the above method in combination with its hardware.

[0316] In an exemplary embodiment, the second base station 900 may be implemented by one or more ASICs, DSPs, PLDs, CPLDs, FPGAs, general processors, controllers, MCUs, Microprocessors, or other electronic components to perform the aforementioned methods.

[0317] It can be understood that the memory (first memory 703, second memory 803, third memory 903) of the embodiment of the present application can be a volatile memory or a non-volatile memory, and can also include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a magnetic random access memory (FRAM), a ferromagnetic random access memory, a flash memory, a magnetic surface memory, an optical disc, or a compact disc read-only memory (CD-ROM); the magnetic surface memory can be a disk memory or a tape memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), synchronous static random access memory (SSRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM, SyncLink Dynamic Random Access Memory), and direct RAM bus random access memory (DRRAM, Direct Rambus Random Access Memory).The memories described in the embodiments of the present application are intended to include, but are not limited to, these and any other suitable types of memories.

[0318] In an exemplary embodiment, the embodiment of the present application further provides a storage medium, namely a computer storage medium, specifically a computer-readable storage medium, for example, including a first memory 703 storing a computer program, and the computer program can be executed by the first processor 702 of the first base station 700 to complete the steps of the first base station side method. For another example, a second memory 803 storing a computer program is included, and the computer program can be executed by the second processor 802 of the terminal 800 to complete the steps of the terminal side method. For another example, a third memory 903 storing a computer program is included, and the computer program can be executed by the third processor 902 of the second base station 900 to complete the steps of the second base station side method. The computer-readable storage medium can be a memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface memory, optical disk, or CD-ROM.

[0319] It should be noted that: "first", "second", etc. are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. The term "and / or" herein is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the term "at least one" herein represents any combination of at least two of any one or more of a plurality of. For example, including at least one of A, B, and C, may represent any one or more elements selected from the set consisting of A, B, and C. In addition, the technical solutions recorded in the embodiments of the present application may be arbitrarily combined without conflict.

[0320] The above description is only a preferred embodiment of the present application and is not intended to limit the protection scope of the present application.

Claims

1. A communication method, characterized in that: Applied to a first base station; the first base station represents a secondary base station to which the terminal is connected when operating in a dual connection DC mode; the method includes: Sending second information to the terminal; the second information is used to indicate that the first base station has sent the first information to a maximum number of retransmissions or to instruct the terminal to perform radio resource control RRC reconstruction; and / or, When receiving the third information sent by the terminal, stop transmitting the first information to the terminal; the third information is used to indicate that the first timer of the terminal has expired; the first timer is used to trigger the terminal to perform RRC reconstruction after the expiration of the timer.

2. The method according to claim 1, characterized in that The sending the second information to the terminal includes: When the first base station sends the first information to the terminal for a maximum number of retransmissions, the first base station sends second information to the terminal.

3. The method according to claim 1, characterized in that: The second information is carried in the first information last retransmitted by the first base station to the terminal; or, The second information is carried in a set sequence sent by the first base station to the terminal, in downlink control information DCI, in a medium access control layer MAC control element CE, or in a set pulse signal.

4. The method according to any one of claims 1 to 3, characterized in that: The method further comprises: Receive fourth information; the fourth information represents the operation status of the first timer when the terminal receives the second information.

5. The method according to claim 4, characterized in that The fourth information includes at least one of the following: the remaining timing length of the first timer; The set timing length of the first timer; the length of time the first timer has run; The ratio of the remaining timing length to the set timing length; The ratio of the running timing length to the set timing length.

6. The method according to claim 4, characterized in that The method further comprises: Based on the fourth information, the maximum number of retransmissions is reconfigured and / or the reconfigured setting timing length of the first timer is sent to the terminal.

7. The method according to claim 1, characterized in that After receiving the third information sent by the terminal, the method further includes: reconfiguring the maximum number of retransmissions and / or sending the reconfigured set timing length of the first timer to the terminal; and / or, The fifth information is sent to a second base station; the second base station represents the main base station to which the terminal is connected when working in DC mode; the fifth information represents the situation in which the first base station retransmits data to the terminal when receiving the third information.

8. The method according to claim 7, characterized in that The fifth information includes at least one of the following: The remaining number of retransmissions by the first base station to the terminal; a ratio of the remaining number of retransmissions to the maximum number of retransmissions; A ratio of the number of retransmissions completed by the first base station to the terminal to the maximum number of retransmissions.

9. The method according to claim 7, characterized in that: The reconfiguring the maximum number of retransmission times and / or sending the reconfigured set timing length of the first timer to the terminal includes: receiving sixth information sent by the terminal; the sixth information is used to indicate that the terminal has not successfully received the first information or has not received the second information when the first timer expires; Based on the fifth information and the sixth information, the maximum number of retransmissions is reconfigured and / or the reconfigured set timing length of the first timer is sent to the terminal.

10. The method according to claim 7, characterized in that After sending the fifth information to the second base station, the method further includes: Receive the reconfigured maximum number of retransmission times sent by the second base station.

11. A communication method, characterized in that: Applied to a terminal; the method comprises: When receiving the second information sent by the first base station, performing RRC reconstruction; the second information is used to indicate that the first base station has sent the first information for a maximum number of retransmissions or to instruct the terminal to perform RRC reconstruction; and / or, Reporting third information to the network side; wherein the third information is used to indicate that the first timer of the terminal has expired; wherein, The first base station represents a secondary base station to which the terminal is connected when operating in the DC mode.

12. The method according to claim 11, wherein the second information is carried in the first information last retransmitted by the first base station to the terminal; and / or The second information is carried in a set sequence, DCI, MAC CE, or a set pulse signal sent by the first base station to the terminal.

13. The method according to claim 11, characterized in that The method further comprises: Sending fourth information to the network side; the fourth information represents the operation status of the first timer when the terminal receives the second information.

14. The method according to claim 13, characterized in that The fourth information includes at least one of the following: The remaining time length of the first timer; The set timing length of the first timer; the length of time the first timer has run; The ratio of the remaining timing length to the set timing length; The ratio of the running timing length to the set timing length.

15. The method according to claim 11, characterized in that The method further comprises: Sending sixth information to the network side; the sixth information is used to indicate that the terminal has not successfully received the first information or has not received the second information when the first timer expires.

16. The method according to any one of claims 11 to 15, characterized in that The method further comprises: Receive the reconfigured set timing length of the first timer sent by the network side.

17. A communication method, characterized in that: applied to a second base station; The second base station represents a main base station to which the terminal is connected when operating in a DC mode; the method comprises: Receiving fourth information sent by the terminal; the fourth information represents the operation status of the first timer when the terminal receives the second information; the second information is used to indicate that the first base station has sent the first information to a maximum number of retransmissions or to instruct the terminal to perform RRC reconstruction; the first base station represents the secondary base station to which the terminal is connected when operating in DC mode; and / or, Receive the fifth information sent by the first base station and / or the sixth information sent by the first terminal; the fifth information represents the situation in which the first base station retransmits data to the terminal when receiving the third information; the sixth information is used to indicate that the terminal has not successfully received the first information or has not received the second information when the first timer expires.

18. The method according to claim 17, characterized in that The fourth information includes at least one of the following: the remaining timing length of the first timer; The set timing length of the first timer; the length of time the first timer has run; The ratio of the remaining timing length to the set timing length; The ratio of the running timing length to the set timing length.

19. The method according to claim 17, characterized in that The fifth information includes at least one of the following: The remaining number of retransmissions by the first base station to the terminal; a ratio of the remaining number of retransmissions to the maximum number of retransmissions; A ratio of the number of retransmissions completed by the first base station to the terminal to the maximum number of retransmissions.

20. The method according to any one of claims 17 to 19, characterized in that The method further comprises: Sending a reconfiguration of the maximum number of retransmission times to the first base station; and / or, The reconfigured set timing length of the first timer is sent to the terminal.

21. A communication device, characterized in that: include: A first sending unit, configured to send second information to a terminal; The first base station represents a secondary base station to which the terminal is connected when operating in a DC mode; The second information is used to instruct the first base station to send the first information to a maximum number of retransmissions or to instruct the terminal to perform RRC reconstruction; and / or, A stopping unit is used to stop transmitting the first information to the terminal when receiving the third information sent by the terminal; the third information is used to indicate that the first timer of the terminal has expired; the first timer is used to trigger the terminal to perform RRC reconstruction after the expiration of the timer.

22. A communication device, characterized in that: include: A first reestablishment unit, configured to perform RRC reestablishment upon receiving the second information sent by the first base station; The second information is used to instruct the first base station to send the first information to a maximum number of retransmissions or to instruct the terminal to perform RRC reconstruction; and / or, The first sending unit is used to report third information to the network side; wherein the third information is used to indicate that the first timer of the terminal has expired; wherein, The first base station represents a secondary base station to which the terminal is connected when operating in the DC mode.

23. A communication device, characterized in that: include: A first receiving unit, configured to receive fourth information sent by the terminal; The fourth information represents the operation of the first timer when the terminal receives the second information; the second information is used to indicate that the first base station has sent the first information to a maximum number of retransmissions or to instruct the terminal to perform RRC reconstruction; the first base station represents the secondary base station to which the terminal is connected when operating in DC mode; and / or, A second receiving unit, configured to receive fifth information sent by the first base station and / or sixth information sent by the first terminal; The fifth information represents a situation in which the first base station retransmits data to the terminal when receiving the third information; The sixth information is used to indicate that the terminal has not successfully received the first information or has not received the second information when the first timer expires.

24. A first base station, characterized in that: The first base station represents the secondary base station to which the terminal is connected when operating in the DC mode; the first base station includes: a first processor and a first communication interface; wherein, The first communication interface is used to send second information to the terminal; the second information is used to indicate that the first base station has sent the first information to a maximum number of retransmissions or to indicate that the terminal performs RRC reconstruction; and / or, The first communication interface is used to stop transmitting the first information to the terminal when receiving the third information sent by the terminal; the third information is used to indicate that the first timer of the terminal has expired; and the first timer is used to trigger the terminal to perform RRC reconstruction after the expiration of the timer.

25. A terminal, characterized in that: include: A second processor and a second communication interface; wherein, The second communication interface is used to perform RRC reconstruction when receiving the second information sent by the first base station; the second information is used to indicate that the first base station has sent the first information to a maximum number of retransmissions or to instruct the terminal to perform RRC reconstruction; and / or, The second communication interface is used to report third information to the network side; wherein the third information is used to indicate that the first timer of the terminal has expired; wherein, The first base station represents a secondary base station to which the terminal is connected when operating in the DC mode.

26. A second base station, characterized in that: The second base station represents the main base station to which the terminal is connected when working in DC mode; the second base station includes: a third processor and a third communication interface; wherein, a third communication interface, used to receive fourth information sent by the terminal; the fourth information represents the operation status of the first timer when the terminal receives the second information; the second information is used to indicate that the first base station has sent the first information to a maximum number of retransmissions or to instruct the terminal to perform RRC reconstruction; the first base station represents the secondary base station to which the terminal is connected when operating in DC mode; and / or, A third communication interface is used to receive the fifth information sent by the first base station and / or the sixth information sent by the first terminal; the fifth information represents a situation in which the first base station retransmits data to the terminal when receiving the third information; the sixth information is used to indicate that the terminal has not successfully received the first information or has not received the second information when the first timer expires.

27. A first base station, characterized in that: include: a first processor and a first memory for storing a computer program executable on the processor, Wherein, when the first processor is used to run the computer program, the steps of the method described in any one of claims 1 to 10 are executed.

28. A terminal, characterized in that: include: a second processor and a second memory for storing a computer program executable on the processor, Wherein, when the second processor is used to run the computer program, it executes the steps of the method described in any one of claims 11 to 16.

29. A second base station, characterized in that: include: a third processor and a third memory for storing a computer program executable on the processor, Wherein, when the third processor is used to run the computer program, it executes the steps of the method described in any one of claims 17 to 20.

30. A storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, it implements the steps of the method described in any one of claims 1 to 10, or implements the steps of the method described in any one of claims 11 to 16, or implements the steps of the method described in any one of claims 17 to 20.

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