Method and device for setting transmission time advance

Abstract

The present disclosure provides a method and apparatus for setting a transmission timing advance, wherein the method comprises: detecting the current transmission timing advance (TA) in a target time unit to obtain a detection result; if the detection result indicates that the current TA has expired, sending a random access signal to the base station via a first target resource; the random access signal is used to indicate that the base station needs to reconfigure a new TA for the user terminal; receiving the new TA returned by the base station; based on the new TA, sending target data to the base station via a second target resource; the target data is data that the user terminal currently needs to report to the base station. The present disclosure simplifies the random access process of the user terminal, is conducive to saving user terminal power, and can avoid wasting the second target resource.

Description

[0001] Divisional application statement

[0002] This application is a divisional application based on the Chinese invention patent application with application number CN201880002320.7, application date November 2, 2018, and invention name “Method and device for setting transmission time advance”. Technical Field

[0003] The present disclosure relates to the field of communications, and in particular to a method and device for setting a transmission timing advance. Background Art

[0004] The traditional LTE (Long Term Evolution) data transmission process can be as follows Figure 1A As shown in the figure, the user terminal needs to complete the random access process first and obtain authorization from the base station before it can send uplink data to the base station. However, in the IoT scenario of the NR (New Radio) system, the random access process will bring huge signaling overhead. Therefore, an authorization-free method can be adopted. Without the need for random access and receiving uplink authorization, the user terminal automatically transmits uplink data on the reserved resources in a preset manner, such as Figure 1B As shown, this reduces signaling overhead and avoids power waste.

[0005] Considering that most IoT user-end services are reported periodically, such as electricity meters and water meters, which report service data at regular intervals, the reserved resources configured in the unlicensed uplink scheduling also appear periodically.

[0006] In traditional LTE uplink transmission, to ensure data from different user terminals arrives at the base station simultaneously, thereby maintaining orthogonality and reducing interference, the user terminal sends data in advance according to the TA (Timing Advance) configured by the base station. Typically, the initial TA is determined by the base station during the random access process based on the random access preamble sent by the user terminal and sent to the user terminal in the RAR (Random Access Response) message. After the user accesses the network, changes in the wireless environment or user movement may make the originally configured TA no longer meet the requirements. In this case, the TA needs to be updated again through the random access process.

[0007] During the unlicensed scheduling process, the user terminal will first use the currently stored TA and verify whether the stored TA is still valid. If the current TA is invalid, the user terminal needs to initiate a random access process to obtain a new TA.

[0008] In the Internet of Things, in order to save power, the user end generally wakes up before the reserved resources configured by the adjacent base station for the user end, and starts the corresponding process to determine whether the current TA is valid. If it is found to be invalid, the user end will update the TA through the random access process. As a result, the user end may miss the use of the reserved resources for data transmission, resulting in a waste of resources.

[0009] In addition, the traditional random access process requires many steps. For a user terminal that only needs to obtain a new TA, the entire process is too cumbersome and is not conducive to power saving. Summary of the Invention

[0010] To overcome the problems existing in the related art, the embodiments of the present disclosure provide a method and apparatus for setting a transmission timing advance.

[0011] According to a first aspect of an embodiment of the present disclosure, a method for setting a transmission timing advance is provided, the method being used at a user terminal, the method comprising:

[0012] Detecting the current transmission timing advance TA in the target time unit to obtain a detection result;

[0013] The target time unit is any time unit before the first time unit corresponding to the first target resource, the first target resource is a random access resource unit associated with the second target resource and meeting the specified conditions, and the second target resource is any resource unit in a resource set pre-allocated by the base station to the user terminal for unauthorized data reporting;

[0014] If the detection result indicates that the current TA has expired, sending a random access signal to the base station through the first target resource; the random access signal is used to indicate that the base station needs to reconfigure a new TA for the user terminal;

[0015] receiving the new TA returned by the base station;

[0016] Based on the new TA, target data is sent to the base station through the second target resource; the target data is data that the user terminal currently needs to report to the base station.

[0017] Optionally, the specified conditions include:

[0018] The time unit where the first target resource is located is before the time unit where the second target resource is located;

[0019] The specified conditions also include:

[0020] The target difference is minimal; or

[0021] The target difference is greater than or equal to a preset value and the target difference is minimum;

[0022] The target difference is a difference between a time unit number of a time unit where the first target resource is located and a time unit number of a time unit where the second target resource is located.

[0023] Optionally, the random access signal is a designated random access preamble code pre-acquired by the user terminal;

[0024] The designated random access preamble is a preamble pre-allocated by the base station to the user terminal and used to indicate that the current TA of the user terminal has failed.

[0025] Optionally, the receiving the new TA returned by the base station includes:

[0026] receiving the new TA sent by the base station through second random access signaling.

[0027] Optionally, the receiving the new TA sent by the base station through second random access signaling includes:

[0028] Receiving a first physical downlink shared channel PDSCH sent by the base station through second random access signaling;

[0029] The first PDSCH includes first target random access response information corresponding to the user terminal, and the first target random access response message carries the random access preamble, the new TA and the reserved value.

[0030] Optionally, the first PDSCH is a PDSCH scheduled by a first target downlink control information DCI; wherein, the first target DCI is a DCI scrambled by a first wireless network temporary identifier RNTI, and the first RNTI is an RNTI used to identify the resource block used by the user terminal to send a corresponding random access preamble code.

[0031] Optionally, the receiving the new TA sent by the base station through second random access signaling includes:

[0032] Receiving a second physical downlink shared channel PDSCH sent by the base station through a second random access signaling;

[0033] The second PDSCH includes second target random access response information corresponding to the user terminal, and the second target random access response message only carries the random access preamble and the new TA.

[0034] Optionally, the second PDSCH is a PDSCH scheduled by a second target downlink control information DCI; wherein, the second target DCI is a DCI scrambled by a second wireless network temporary identifier RNTI, and the second RNTI is an RNTI used to identify the resource block used by the user terminal to send the corresponding random access preamble code.

[0035] Optionally, the value of the second RNTI is different from the value of the first RNTI.

[0036] Optionally, the receiving the new TA sent by the base station through second random access signaling includes:

[0037] receiving third target downlink control information DCI sent by the base station through second random access signaling;

[0038] The third target DCI includes third target random access response information corresponding to the user terminal, and the third target random access response message carries at least the new TA.

[0039] Optionally, the third target DCI is DCI that is scrambled by a third radio network temporary identifier RNTI.

[0040] Optionally, the third RNTI is determined in the following manner:

[0041] Using the RNTI for identifying user services allocated by the base station to the user terminal when the base station is in a connected state as the third RNTI; or

[0042] The time unit number of the time unit corresponding to the random access preamble code corresponding to the user terminal is used as the value of the third RNTI.

[0043] According to a second aspect of an embodiment of the present disclosure, a method for setting a transmission timing advance is provided, the method being used by a base station, the method including:

[0044] detecting, on the first target resource, whether a random access signal sent by the user terminal is received;

[0045] The first target resource is a random access resource that satisfies a specified condition and is associated with the second target resource, and the second target resource is any resource unit in a resource set pre-allocated by the base station to the user terminal for unauthorized data reporting;

[0046] If the random access signal is detected on the first target resource, reconfigure a new transmission timing advance TA for the user terminal according to the random access signal;

[0047] Returning the new TA to the user terminal;

[0048] Receive target data sent by the user terminal through the second target resource based on the new TA; the target data is data that the user terminal currently needs to report to the base station.

[0049] Optionally, the specified conditions include:

[0050] The time unit where the first target resource is located is before the time unit where the second target resource is located;

[0051] The specified conditions also include:

[0052] The target difference is minimal; or

[0053] The target difference is greater than or equal to a preset value and the target difference is minimum;

[0054] The target difference is a difference between a time unit number of a time unit where the first target resource is located and a time unit number of a time unit where the second target resource is located.

[0055] Optionally, the random access signal is a designated random access preamble code pre-acquired by the user terminal; wherein the designated random access preamble code is a preamble code pre-assigned by the base station to the user terminal and used to indicate that the current TA of the user terminal has expired.

[0056] Optionally, returning the new TA to the user terminal includes:

[0057] The new TA is returned to the user terminal through second random access signaling.

[0058] Optionally, returning the new TA to the user terminal through the second random access signaling includes:

[0059] Sending a first physical downlink shared channel PDSCH to the user terminal through a second random access signaling;

[0060] The first PDSCH includes first target random access response information corresponding to the user terminal, and the first target random access response message carries the random access preamble, the new TA and the reserved value.

[0061] Optionally, the first PDSCH is a PDSCH scheduled by a first target downlink control information DCI; wherein, the first target DCI is a DCI scrambled by a first wireless network temporary identifier RNTI, and the first RNTI is an RNTI used to identify the resource block used by the user terminal to send a corresponding random access preamble code.

[0062] Optionally, returning the new TA to the user terminal through the second random access signaling includes:

[0063] Sending a second physical downlink shared channel PDSCH to the user terminal through a second random access signaling;

[0064] The second PDSCH includes second target random access response information corresponding to the user terminal, and the second target random access response message only carries the random access preamble and the new TA.

[0065] Optionally, the second PDSCH is a PDSCH scheduled by a second target downlink control information DCI; wherein, the second target DCI is a DCI scrambled by a second wireless network temporary identifier RNTI, and the second RNTI is an RNTI used to identify the resource block used by the user terminal to send the corresponding random access preamble code.

[0066] Optionally, the value of the second RNTI is different from the value of the first RNTI.

[0067] Optionally, returning the new TA to the user terminal through the second random access signaling includes:

[0068] Sending third target downlink control information DCI to the user terminal through second random access signaling;

[0069] The third target DCI includes third target random access response information corresponding to the user terminal, and the third target random access response message carries at least the new TA.

[0070] Optionally, the third target DCI is DCI that is scrambled by a third radio network temporary identifier RNTI.

[0071] Optionally, the third RNTI is determined in the following manner:

[0072] Using the RNTI for identifying user services allocated by the base station to the user terminal when the base station is in a connected state as the third RNTI; or

[0073] The time unit number of the time unit corresponding to the random access preamble code corresponding to the user terminal is used as the value of the third RNTI.

[0074] According to a third aspect of an embodiment of the present disclosure, a device for setting a transmission timing advance is provided, the device being used in a base station, the device including:

[0075] A first detection module is configured to detect the current transmission timing advance TA in a target time unit to obtain a detection result;

[0076] The target time unit is any time unit before the first time unit corresponding to the first target resource, the first target resource is a random access resource unit associated with the second target resource and meeting the specified conditions, and the second target resource is any resource unit in a resource set pre-allocated by the base station to the user terminal for unauthorized data reporting;

[0077] a first sending module configured to send a random access signal to the base station through the first target resource if the detection result indicates that the current TA has expired; the random access signal is used to indicate that the base station needs to reconfigure a new TA for the user terminal;

[0078] A first receiving module is configured to receive the new TA returned by the base station;

[0079] The second sending module is configured to send target data to the base station through the second target resource based on the new TA; the target data is data that the user terminal currently needs to report to the base station.

[0080] Optionally, the specified conditions include:

[0081] The time unit where the first target resource is located is before the time unit where the second target resource is located;

[0082] The specified conditions also include:

[0083] The target difference is minimal; or

[0084] The target difference is greater than or equal to a preset value and the target difference is minimum;

[0085] The target difference is a difference between a time unit number of a time unit where the first target resource is located and a time unit number of a time unit where the second target resource is located.

[0086] Optionally, the random access signal is a designated random access preamble code pre-acquired by the user terminal;

[0087] The designated random access preamble is a preamble pre-allocated by the base station to the user terminal and used to indicate that the current TA of the user terminal has failed.

[0088] Optionally, the first receiving module includes:

[0089] The receiving submodule is configured to receive the new TA sent by the base station through the second random access signaling.

[0090] Optionally, the receiving submodule includes:

[0091] A first receiving unit is configured to receive a first physical downlink shared channel PDSCH sent by the base station through second random access signaling;

[0092] The first PDSCH includes first target random access response information corresponding to the user terminal, and the first target random access response message carries the random access preamble, the new TA and the reserved value.

[0093] Optionally, the first PDSCH is a PDSCH scheduled by a first target downlink control information DCI; wherein, the first target DCI is a DCI scrambled by a first wireless network temporary identifier RNTI, and the first RNTI is an RNTI used to identify the resource block used by the user terminal to send a corresponding random access preamble code.

[0094] Optionally, the receiving submodule includes:

[0095] A second receiving unit is configured to receive a second physical downlink shared channel PDSCH sent by the base station through a second random access signaling;

[0096] The second PDSCH includes second target random access response information corresponding to the user terminal, and the second target random access response message only carries the random access preamble and the new TA.

[0097] Optionally, the second PDSCH is a PDSCH scheduled by a second target downlink control information DCI; wherein, the second target DCI is a DCI scrambled by a second wireless network temporary identifier RNTI, and the second RNTI is an RNTI used to identify the resource block used by the user terminal to send the corresponding random access preamble code.

[0098] Optionally, the value of the second RNTI is different from the value of the first RNTI.

[0099] Optionally, the receiving submodule includes:

[0100] A third receiving unit is configured to receive third target downlink control information DCI sent by the base station through the second random access signaling;

[0101] The third target DCI includes third target random access response information corresponding to the user terminal, and the third target random access response message carries at least the new TA.

[0102] Optionally, the third target DCI is DCI that is scrambled by a third radio network temporary identifier RNTI.

[0103] Optionally, the device further comprises:

[0104] A first determining module is configured to use an RNTI allocated by the base station to the user terminal when the base station is in a connected state with the user terminal and used to identify user services as the third RNTI; or

[0105] The second determining module is configured to use the time unit number of the time unit corresponding to the random access preamble code corresponding to the user terminal as the value of the third RNTI.

[0106] According to a fourth aspect of an embodiment of the present disclosure, a device for setting a transmission timing advance is provided, the device being used in a base station, the device including:

[0107] A second detection module is configured to detect whether a random access signal sent by the user terminal is received on the first target resource;

[0108] The first target resource is a random access resource that satisfies a specified condition and is associated with the second target resource, and the second target resource is any resource unit in a resource set pre-allocated by the base station to the user terminal for unauthorized data reporting;

[0109] an execution module, configured to, if the random access signal is detected on the first target resource, reconfigure a new transmission timing advance TA for the user terminal according to the random access signal;

[0110] A third sending module is configured to return the new TA to the user terminal;

[0111] The second receiving module is configured to receive target data sent by the user terminal through the second target resource based on the new TA; the target data is data that the user terminal currently needs to report to the base station.

[0112] Optionally, the specified conditions include:

[0113] The time unit where the first target resource is located is before the time unit where the second target resource is located;

[0114] The specified conditions also include:

[0115] The target difference is minimal; or

[0116] The target difference is greater than or equal to a preset value and the target difference is minimum;

[0117] The target difference is a difference between a time unit number of a time unit where the first target resource is located and a time unit number of a time unit where the second target resource is located.

[0118] Optionally, the random access signal is a designated random access preamble code pre-acquired by the user terminal; wherein the designated random access preamble code is a preamble code pre-assigned by the base station to the user terminal and used to indicate that the current TA of the user terminal has expired.

[0119] Optionally, the third sending module includes:

[0120] The sending submodule is configured to return the new TA to the user terminal through a second random access signaling.

[0121] Optionally, the sending submodule includes:

[0122] A first sending unit is configured to send a first physical downlink shared channel PDSCH to the user terminal through a second random access signaling;

[0123] The first PDSCH includes first target random access response information corresponding to the user terminal, and the first target random access response message carries the random access preamble, the new TA and the reserved value.

[0124] Optionally, the first PDSCH is a PDSCH scheduled by a first target downlink control information DCI; wherein, the first target DCI is a DCI scrambled by a first wireless network temporary identifier RNTI, and the first RNTI is an RNTI used to identify the resource block used by the user terminal to send a corresponding random access preamble code.

[0125] Optionally, the sending submodule includes:

[0126] A second sending unit is configured to send a second physical downlink shared channel PDSCH to the user terminal through a second random access signaling;

[0127] The second PDSCH includes second target random access response information corresponding to the user terminal, and the second target random access response message only carries the random access preamble and the new TA.

[0128] Optionally, the second PDSCH is a PDSCH scheduled by a second target downlink control information DCI; wherein, the second target DCI is a DCI scrambled by a second wireless network temporary identifier RNTI, and the second RNTI is an RNTI used to identify the resource block used by the user terminal to send the corresponding random access preamble code.

[0129] Optionally, the value of the second RNTI is different from the value of the first RNTI.

[0130] Optionally, the sending submodule includes:

[0131] A third sending unit is configured to send third target downlink control information DCI to the user terminal through second random access signaling;

[0132] The third target DCI includes third target random access response information corresponding to the user terminal, and the third target random access response message carries at least the new TA.

[0133] Optionally, the third target DCI is DCI that is scrambled by a third radio network temporary identifier RNTI.

[0134] Optionally, the device further comprises:

[0135] A third determining module is configured to use the RNTI allocated by the base station to the user terminal when the base station is in a connected state with the user terminal and used to identify the user service as the third RNTI; or

[0136] The fourth determining module is configured to use the time unit number of the time unit corresponding to the random access preamble code corresponding to the user terminal as the value of the third RNTI.

[0137] According to a fifth aspect of an embodiment of the present disclosure, a computer-readable storage medium is provided, wherein the storage medium stores a computer program, and the computer program is used to execute the method for setting the transmission timing advance described in the first aspect above.

[0138] According to a sixth aspect of an embodiment of the present disclosure, a computer-readable storage medium is provided, wherein the storage medium stores a computer program, and the computer program is used to execute the method for setting the transmission timing advance described in the second aspect above.

[0139] According to a seventh aspect of an embodiment of the present disclosure, a device for setting a transmission timing advance is provided, the device being used at a user terminal, including:

[0140] processor;

[0141] a memory for storing processor-executable instructions;

[0142] Wherein, the processor is configured to:

[0143] Detecting the current transmission timing advance TA in the target time unit to obtain a detection result;

[0144] The target time unit is any time unit before the first time unit corresponding to the first target resource, the first target resource is a random access resource unit associated with the second target resource and meeting the specified conditions, and the second target resource is any resource unit in a resource set pre-allocated by the base station to the user terminal for unauthorized data reporting;

[0145] If the detection result indicates that the current TA has expired, sending a random access signal to the base station through the first target resource; the random access signal is used to indicate that the base station needs to reconfigure a new TA for the user terminal;

[0146] receiving the new TA returned by the base station;

[0147] Based on the new TA, target data is sent to the base station through the second target resource; the target data is data that the user terminal currently needs to report to the base station.

[0148] According to an eighth aspect of an embodiment of the present disclosure, a device for setting a transmission timing advance is provided, the device being used in a base station, including:

[0149] processor;

[0150] a memory for storing processor-executable instructions;

[0151] Wherein, the processor is configured to:

[0152] detecting, on the first target resource, whether a random access signal sent by the user terminal is received;

[0153] The first target resource is a random access resource that satisfies a specified condition and is associated with the second target resource, and the second target resource is any resource unit in a resource set pre-allocated by the base station to the user terminal for unauthorized data reporting;

[0154] If the random access signal is detected on the first target resource, reconfigure a new transmission timing advance TA for the user terminal according to the random access signal;

[0155] Returning the new TA to the user terminal;

[0156] Receive target data sent by the user terminal through the second target resource based on the new TA; the target data is data that the user terminal currently needs to report to the base station.

[0157] The technical solutions provided by the embodiments of the present disclosure may have the following beneficial effects:

[0158] In the disclosed embodiments, the user terminal can detect the current TA in advance and send a random access signal to the base station via a first target resource, i.e., a random access resource associated with a second target resource that meets specified conditions, instructing the base station to reallocate a new TA. Furthermore, the user terminal can send data via the second target resource, i.e., any resource unit in a resource set pre-allocated by the base station to the user terminal for unauthorized data reporting. This process simplifies the user terminal's random access process, helps save user terminal power, and avoids wasting the second target resource.

[0159] In an embodiment of the present disclosure, optionally, the specified condition may include: the time unit where the first target resource is located is located before the time unit where the second target resource is located. Furthermore, the specified condition may also include: the target difference is the smallest; or the target difference is greater than or equal to a preset value and the target difference is the smallest; wherein the target difference is the difference between the time unit number of the time unit where the first target resource is located and the time unit number of the time unit where the second target resource is located. This ensures that the first target resource is located before the second target resource, and that the time unit where the first target resource is located is closest to the time unit where the second target resource is located, thereby achieving the purpose of detecting the current TA in advance on the user side.

[0160] In the embodiment of the present disclosure, the random access signal may optionally be a designated random access preamble code pre-acquired by the user terminal. The designated random access preamble code is a preamble code pre-assigned to the user terminal by the base station and used to indicate that the user terminal's current TA has expired. Upon receiving the designated random access preamble code, the base station may determine that the user terminal currently requires the base station to reconfigure a new TA.

[0161] In the disclosed embodiments, after receiving the new TA sent by the base station via the second random access signaling, the user terminal no longer performs the subsequent random access process in the prior art. Instead, the user terminal directly sends target data to the base station via the second target resource based on the new TA. This simplifies the user terminal's random access process, helps save user terminal power, and avoids wasting the second target resource.

[0162] In an embodiment of the present disclosure, optionally, a user terminal may receive a first PDSCH sent by a base station through second random access signaling. The first PDSCH may include first target random access response information corresponding to the user terminal, and the first target random access response information carries the random access preamble, the new TA, and the reserved value. This achieves the purpose of obtaining, on the user terminal, the new TA reconfigured by the base station for the user terminal.

[0163] In the embodiment of the present disclosure, the first DCI scrambled by the first RNTI is used to schedule the first PDSCH, so that the user terminal can obtain the TA newly configured by the base station for the user terminal from the first PDSCH.

[0164] In the embodiment of the present disclosure, the user terminal may also receive a second PDSCH sent by the base station through a second random access signaling. The second PDSCH may include second target random access response information corresponding to the user terminal, and the second target random access response information carries the random access preamble and the new TA. In the embodiment of the present disclosure, the first target random access response information may be simplified without including a reserved value, thereby obtaining a simplified second target random access response information, which also achieves the purpose of obtaining, on the user terminal, a new TA reconfigured by the base station for the user terminal.

[0165] In an embodiment of the present disclosure, the second PDSCH is a PDSCH scheduled by the second target downlink control information DCI; wherein, the second target DCI is a DCI scrambled by the second wireless network temporary identifier RNTI, and the second RNTI is the RNTI used to identify the resource block used by the user terminal to send the corresponding random access preamble code, so that the user terminal can obtain the TA newly configured by the base station for the user terminal from the second PDSCH.

[0166] In the embodiment of the present disclosure, the value of the second RNTI is different from the value of the first RNTI. After scrambling different DCIs with different RNTIs, the corresponding PDSCHs are scheduled, thereby enabling the user end to obtain the TA newly configured by the base station for the user end.

[0167] In the embodiment of the present disclosure, the user terminal may also receive third target downlink control information (DCI) sent by the base station via second random access signaling. The third target DCI includes third target random access response information corresponding to the user terminal, and the third target random access response information carries at least the new TA. In the embodiment of the present disclosure, the random access response information may be further simplified, and the third target random access response information carrying at least the new TA may be sent to the user terminal via the third target DCI, thereby similarly achieving the purpose of obtaining, at the user terminal, the new TA reconfigured by the base station for the user terminal.

[0168] In an embodiment of the present disclosure, optionally, the third target DCI is DCI scrambled by a third radio network temporary identifier (RNTI). The user terminal may use the RNTI assigned to the user terminal by the base station when the base station is in a connected state with the user terminal and used to identify the user service as the third RNTI, or the user terminal may use the time unit number of the time unit corresponding to the random access preamble code corresponding to the user terminal as the value of the third RNTI. In an embodiment of the present disclosure, the user terminal is identified by the third RNTI, so that the third target random access response information can only carry the new TA.

[0169] In the disclosed embodiment, if a base station detects receipt of a random access signal sent by a user terminal on a first target resource, it reconfigures a new transmission timing advance (TA) for the user terminal based on the random access signal and returns the new TA to the user terminal. This allows the user terminal to report target data to the base station via the second target resource. This simplifies the random access process for the user terminal, helps save user terminal power, and avoids wasting the second target resource.

[0170] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0171] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0172] Figure 1A It is a schematic diagram of the data transmission process in the related technology.

[0173] Figure 1B This is a flowchart of data transmission in an authorization-free manner in related technologies.

[0174] Figure 2 FIG. 4 is a flow chart of a method for setting an input timing advance according to an exemplary embodiment.

[0175] Figures 3A to 3C The figure is a schematic diagram of a data transmission scenario according to an exemplary embodiment.

[0176] Figure 4 The figure is a flow chart of another method for setting a transmission timing advance according to an exemplary embodiment.

[0177] Figure 5 The figure is a flow chart of another method for setting a transmission timing advance according to an exemplary embodiment.

[0178] Figure 6 The present invention is a block diagram of a device for setting a transmission timing advance according to an exemplary embodiment.

[0179] Figure 7 The figure is a block diagram of another device for setting a transmission timing advance according to an exemplary embodiment.

[0180] Figure 8 The figure is a block diagram of another device for setting a transmission timing advance according to an exemplary embodiment.

[0181] Figure 9 The figure is a block diagram of another device for setting a transmission timing advance according to an exemplary embodiment.

[0182] Figure 10 The figure is a block diagram of another device for setting a transmission timing advance according to an exemplary embodiment.

[0183] Figure 11 The figure is a block diagram of another device for setting a transmission timing advance according to an exemplary embodiment.

[0184] Figure 12 The figure is a block diagram of another device for setting a transmission timing advance according to an exemplary embodiment.

[0185] Figure 13 The figure is a block diagram of another device for setting a transmission timing advance according to an exemplary embodiment.

[0186] Figure 14 The figure is a block diagram of another device for setting a transmission timing advance according to an exemplary embodiment.

[0187] Figure 15 The figure is a block diagram of another device for setting a transmission timing advance according to an exemplary embodiment.

[0188] Figure 16 The figure is a block diagram of another device for setting a transmission timing advance according to an exemplary embodiment.

[0189] Figure 17 The figure is a block diagram of another device for setting a transmission timing advance according to an exemplary embodiment.

[0190] Figure 18 The present invention is a structural diagram of a device for setting a transmission timing advance according to an exemplary embodiment of the present invention.

[0191] Figure 19 It is a structural diagram of another device for setting a transmission timing advance according to an exemplary embodiment of the present disclosure. DETAILED DESCRIPTION

[0192] Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. In the following description, when referring to the drawings, like numbers in different figures represent like or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present invention, as detailed in the appended claims.

[0193] The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," "the," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0194] It should be understood that although the terms first, second, third, etc. may be used in this disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining."

[0195] The following first introduces the method for setting the transmission timing advance TA provided by the embodiment of the present disclosure from the user side.

[0196] The embodiment of the present disclosure provides a method for setting a transmission timing advance TA, which can be used in a user terminal. Figure 2 As shown, Figure 2 FIG. 5 is a flow chart showing a method for setting a transmission timing advance (TA) according to an exemplary embodiment, which may include the following steps:

[0197] In step 101, the current transmission timing advance TA is detected in the target time unit to obtain a detection result;

[0198] The target time unit is any time unit before the first time unit corresponding to the first target resource, the first target resource is a random access resource unit associated with the second target resource and meeting a specified condition, and the second target resource is any resource unit in a resource set pre-allocated by a base station in the Internet of Things to the user terminal for unauthorized data reporting;

[0199] In step 102, if the detection result indicates that the current TA has expired, a random access signal is sent to the base station through the first target resource; the random access signal is used to indicate that the base station needs to reconfigure a new TA for the user terminal;

[0200] In step 103, receiving the new TA returned by the base station;

[0201] In step 104, based on the new TA, target data is sent to the base station through the second target resource; the target data is data that the user terminal currently needs to report to the base station.

[0202] In the above embodiment, the random access process of the user terminal is simplified, which is beneficial to saving the power of the user terminal and avoiding the waste of the second target resource.

[0203] Regarding the above step 101, the second target resource is first introduced. The second target resource is any resource unit in the resource set pre-allocated by the base station to the user terminal for unauthorized data reporting, for example Figure 3A shown.

[0204] The first target resource is a random access resource associated with the second target resource and used for random access that satisfies a specified condition. The specified condition predefined in the protocol can be directly obtained by the user terminal, or the specified condition can be configured for the user terminal by the base station, and the user terminal receives the specified condition sent by the base station via preset signaling, such as RRC signaling.

[0205] In an embodiment of the present disclosure, the preset condition may include: the time unit where the first target resource is located is before the time unit where the second target resource is located, and the target difference is the smallest. The target difference is the difference between the time unit number of the time unit where the first target resource is located and the time unit number of the time unit where the second target resource is located.

[0206] For example, the time unit where the second target resource is located is the 7th subframe, and the random access resource is set on the 2nd, 4th, and 6th subframes. The user terminal can use the resource unit corresponding to the 6th subframe as the first target resource, such as Figure 3B shown.

[0207] Alternatively, the specified condition may include: the time unit where the first target resource is located is located before the time unit where the second target resource is located, and the target difference is greater than or equal to a preset value and the target difference is the smallest.

[0208] For example, the time unit where the second target resource is located is the 7th subframe, the random access resource is set on the 2nd, 4th, and 6th subframes, and the preset value is 2. The user terminal can use the resource unit corresponding to the 4th subframe as the first target resource, such as Figure 3C shown.

[0209] In the embodiment of the present disclosure, the user terminal needs to measure the current TA in the target time unit, that is, detect the current TA in any time unit before the time unit where the first target resource is located to determine whether the current TA is valid.

[0210] Optionally, the user end can measure the current RSRP (Reference Signal Receiving Power) value. If the difference between the current RSRP value and the RSRP value measured when the data was successfully transmitted last time is less than a preset threshold value, it can be determined that the current TA is still valid; otherwise, it is determined that the current TA has failed.

[0211] With respect to step 102 above, when the detection result indicates that the current TA has failed, the user terminal may send a random access signal to the base station via the first target resource, and the base station reconfigures a new TA for the user terminal according to the random access signal.

[0212] The random access signal may be a designated random access preamble code pre-acquired by the user terminal; the designated random access preamble code is a preamble code pre-assigned by the base station to the user terminal and used to indicate that the current TA of the user terminal has failed.

[0213] Optionally, the user terminal may send the designated random access preamble to the base station through a first random access signaling, such as msg.1 signaling. After receiving the designated random access preamble, the base station may determine that a new TA needs to be reconfigured for the user terminal.

[0214] With respect to the above step 103, after configuring a new TA for the user terminal, the base station may send the new TA to the user terminal via a second random access signaling, such as msg.2 signaling, and the user terminal may receive it.

[0215] Optionally, the user terminal may adopt any one of the following methods to receive the new TA sent by the base station through the second random access signaling.

[0216] In a first manner, a first physical downlink control channel PDSCH is received, which is sent by the base station through a second random access signaling.

[0217] In this manner, the base station carries the first target random access response information corresponding to the user terminal in the first PDSCH. The length of the first target random access response information can be the same as the length of the random access response information in the prior art, and the first target random access response information can be multiplexed on the same PDSCH with multiple random access response information in other prior arts.

[0218] In the prior art, when a user receives a first PDSCH containing multiple random access response messages, the user segments the received first PDSCH based on the length of the random access response messages. For example, if the length of the random access response message is 48 bits and the received first PDSCH is 480 bits, the user end can sequentially segment the first PDSCH into 10 random access response messages. The user end then determines the contents of these 10 random access response messages and finds the first target random access response message corresponding to itself.

[0219] If the random access preamble and the new TA carried in the first target random access response information occupy 8 bits, and the length of each random access response information is 10 bits, the length of the reserved value in the first target random access response information is 2 bits.

[0220] After receiving the first target random access response information, the user terminal may only read the random access preamble and the new TA therein, and may no longer read the reserved value.

[0221] In addition, the base station schedules the first PDSCH through a first target DCI, where the first target DCI is a DCI scrambled by a first radio network temporary identifier (RNTI), and the first RNTI is an RNTI used to identify a resource block used by the user terminal to send a corresponding random access preamble. In the disclosed embodiment, the first RNTI may adopt the RA-RNTI in the prior art.

[0222] The second manner is to receive a second physical downlink control channel PDSCH sent by the base station through a second random access signaling.

[0223] In this manner, the second PDSCH includes second target random access response information corresponding to the user terminal. The second target random access response information is simplified relative to the first target random access response information and may only carry the random access preamble and the new TA.

[0224] If the second target random access response message does not carry a reserved value, the length of the second random access response message is different from the length of the random access response message in the prior art. After receiving the second PDSCH, the user terminal cannot know the length of each random access response message. Therefore, it should be noted that in the embodiments of the present disclosure, the second target random access response message cannot be multiplexed with the random access response message in the prior art on the same second PDSCH.

[0225] In this manner, after receiving the second PDSCH, the user terminal may read the random access preamble and the new TA in the second target random access response information corresponding to itself.

[0226] In an embodiment of the present disclosure, the base station schedules a second PDSCH using a second target DCI, where the second target DCI is DCI scrambled using a second radio network temporary identifier (RNTI), and the second RNTI is an RNTI used to identify a resource block used by the user terminal to send a corresponding random access preamble. In an embodiment of the present disclosure, the second RNTI may be RA-RNTI', and the value of the second RNTI is different from the value of the first RNTI.

[0227] For example, RA-RNTI′=1+t_id+10×f_id+offset; or

[0228] RA-RNTI'=1+a×t_id+10×t_id.

[0229] Among them, t_id represents the subframe identifier of the starting position of sending the preamble code (the value range is 0 to 9), f_id represents the f_RA value in the four-element group (the value range is 0 to 5), a and offset can be preset values ​​or values ​​that can be configured by the wireless resource control layer of the base station.

[0230] A third manner is to receive third target downlink control information DCI sent by the base station through second random access signaling.

[0231] In this manner, the third target random access response information can be sent to the user terminal via the third target DCI, and the base station does not need to send the PDSCH to the user terminal. The third target random access response information carries at least the new TA.

[0232] In the embodiment of the present disclosure, the third target DCI is DCI scrambled by a third RNTI. Optionally, the user terminal may use the RNTI for identifying user services allocated to the user terminal by the base station when the user terminal is connected as the third RNTI.

[0233] For example, the third target DCI is scrambled by C-RNTI, and C-RNTI is an RNTI allocated to the user terminal by the base station when the base station is in a connected state with the user terminal and is used to identify user services.

[0234] Alternatively, the user terminal may also directly use the time unit number of the time unit corresponding to the random access preamble code corresponding to the user terminal as the value of the third RNTI.

[0235] For example, if the time unit number of the time unit corresponding to the random access preamble code corresponding to the user terminal is m, then the value of the third RNTI at this time is also m.

[0236] The user terminal may descramble the received third target DCI according to the determined third RNTI, thereby obtaining a new TA therein.

[0237] Regarding step 104 above, after receiving the new TA returned by the base station, the user terminal no longer needs to perform the transmission of msg.3 and msg.4 in the prior art, and can directly send target data to the base station on the second target resource. The target data is the data that the user terminal currently needs to report to the base station.

[0238] Next, a method for setting the transmission timing advance TA provided by an embodiment of the present disclosure will be introduced from the base station side.

[0239] The embodiment of the present disclosure provides a method for setting a transmission timing advance TA, which can be used in a user terminal. Figure 4 As shown, Figure 4 FIG. 5 is a flow chart showing a method for setting a transmission timing advance (TA) according to an exemplary embodiment, which may include the following steps:

[0240] In step 201, detecting whether a random access signal sent by a user terminal is received on a first target resource;

[0241] The first target resource is a random access resource unit that is associated with the second target resource and meets a specified condition, and the second target resource is any resource unit in a resource set pre-allocated by the base station to the user terminal for unauthorized data reporting;

[0242] In step 202, if the random access signal is detected on the first target resource, a new transmission timing advance TA is reconfigured for the user terminal according to the random access signal;

[0243] In step 203, the new TA is returned to the user terminal;

[0244] In step 204, target data sent by the user terminal through the second target resource based on the new TA is received; the target data is data that the user terminal currently needs to report to the base station.

[0245] In the above embodiment, the random access process of the user terminal is simplified, which is beneficial to saving the power of the user terminal and avoiding the waste of the second target resource.

[0246] Regarding the above step 201, the method for determining the first target resource in this step is the same as the method for determining the first target resource in the above step 101, and will not be repeated here.

[0247] The base station may detect on the first target resource whether a random access signal sent by the user terminal through the first random access signaling, for example, msg.1 signaling, is received.

[0248] In an embodiment of the present disclosure, the random access signal may be a designated random access preamble code pre-acquired by the user terminal; wherein the designated random access preamble code is a preamble code pre-assigned by the base station to the user terminal and used to indicate that the current TA of the user terminal has expired.

[0249] For the above step 202, if the base station detects a designated random access preamble code sent by the user terminal through the first random access signaling, such as msg.1 signaling, on the first target resource, the base station can determine that it needs to be The user end configures a new TA.

[0250] In the embodiment of the present disclosure, the base station may configure a new TA for the user terminal by adopting the method of updating the TA in the prior art.

[0251] Regarding the above 203, optionally, step 203 may specifically be:

[0252] The new TA is returned to the user terminal through second random access signaling.

[0253] The second random access signaling may be msg.2 signaling.

[0254] Furthermore, the base station may return the new TA to the user terminal through the second random access signaling in any one of the following ways.

[0255] In a first manner, a first physical downlink control channel PDSCH is sent to the user terminal through a second random access signaling.

[0256] In this manner, the base station carries the first target random access response information corresponding to the user terminal in the first PDSCH. The length of the first target random access response information can be the same as the length of the random access response information in the prior art, and the first target random access response information can be multiplexed on the same PDSCH with multiple random access response information in other prior arts.

[0257] After receiving the first target random access response information, the user terminal may only read the random access preamble and the new TA therein, and may no longer read the reserved value.

[0258] In addition, the base station schedules the first PDSCH through a first target DCI, where the first target DCI is a DCI scrambled by a first radio network temporary identifier (RNTI), and the first RNTI is an RNTI used to identify a resource block used by the user terminal to send a corresponding random access preamble. In the disclosed embodiment, the first RNTI may adopt the RA-RNTI in the prior art.

[0259] In the second manner, a second physical downlink control channel PDSCH is sent to the user terminal through a second random access signaling.

[0260] In this manner, the second PDSCH includes second target random access response information corresponding to the user terminal. The second target random access response information is simplified relative to the first target random access response information and may only carry the random access preamble and the new TA.

[0261] It should be noted that in the embodiment of the present disclosure, the second target random access response information cannot multiplex the same second PDSCH as the random access response information in the prior art.

[0262] In this manner, after receiving the second PDSCH, the user terminal may read the random access preamble and the new TA in the second target random access response information corresponding to itself.

[0263] In this manner, after receiving the second PDSCH, the user terminal may read the random access preamble and the new TA in the second target random access response information corresponding to itself.

[0264] In a third manner, third target downlink control information DCI is sent to the user terminal through a second random access signaling.

[0265] In this manner, the third target random access response information can be sent to the user terminal via the third target DCI, and the base station does not need to send the PDSCH to the user terminal. The third target random access response information carries at least the new TA.

[0266] In the embodiment of the present disclosure, the third target DCI is DCI scrambled by a third RNTI. Optionally, the base station may use the RNTI allocated to the user terminal when in a connected state with the user terminal and used to identify user services as the third RNTI.

[0267] For example, the third target DCI is scrambled by C-RNTI, and C-RNTI is an RNTI allocated to the user terminal by the base station when the base station is in a connected state with the user terminal and is used to identify user services.

[0268] Alternatively, the base station may also directly use the time unit number of the time unit corresponding to the random access preamble code corresponding to the user terminal as the value of the third RNTI.

[0269] For example, if the time unit number of the time unit corresponding to the random access preamble code corresponding to the user terminal is m, then the value of the third RNTI at this time is also m.

[0270] With respect to step 204 above, the base station has updated the TA for the user terminal. Therefore, the user terminal no longer needs to transmit msg.3 and msg.4 in the prior art, and can directly send target data to the base station on the second target resource based on the new TA. The base station can directly receive the target data.

[0271] In one embodiment, referring to Figure 5 As shown, Figure 5 FIG. 5 is a flow chart showing a method for setting a transmission timing advance (TA) according to an exemplary embodiment, which may include the following steps:

[0272] In step 301, the user terminal detects the current transmission timing advance TA in a target time unit to obtain a detection result.

[0273] Among them, the target time unit is any time unit before the first time unit corresponding to the first target resource, the first target resource is a random access resource unit associated with the second target resource and meets the specified conditions, and the second target resource is any resource unit in the resource set pre-allocated by the base station to the user terminal for unauthorized data reporting.

[0274] In step 302, if the detection result indicates that the current TA has failed, the user terminal sends a random access signal to the base station through the first target resource.

[0275] The user terminal may send a random access signal to the base station through a first random access signaling, such as msg.1, and a first target resource. The random access signal is a designated random access preamble code pre-acquired by the user terminal; wherein the designated random access preamble code is a preamble code pre-assigned to the user terminal by the base station and used to indicate that the current TA of the user terminal has expired.

[0276] In step 303, the base station detects whether a designated random access preamble code sent by the user terminal is received on the first target resource.

[0277] In step 304, the base station determines that a designated random access preamble sent by the user terminal is received on the first target resource, and then reconfigures a new transmission timing advance TA for the user terminal based on the designated random access preamble.

[0278] In step 305, the base station returns the new TA to the user terminal.

[0279] Optionally, the base station may send the first PDSCH, or the second PDSCH, or the third target DCI to the user end through a second random access signaling, such as msg.2 signaling.

[0280] In step 306, the user terminal sends target data to the base station through the second target resource based on the new TA.

[0281] The target data is data that the user terminal currently needs to report to the base station.

[0282] In the above embodiment, the user terminal can detect the current TA in advance, which simplifies the random access process of the user terminal, helps save the power of the user terminal, and avoids wasting the second target resource.

[0283] Corresponding to the aforementioned application function implementation method embodiment, the present disclosure also provides an application function implementation device, and corresponding user terminal and base station embodiments.

[0284] Reference Figure 6 , Figure 6 This is a block diagram of a device for setting a transmission timing advance according to an exemplary embodiment. The device is used at a user terminal and includes:

[0285] The first detection module 410 is configured to detect the current transmission timing advance TA in the target time unit and obtain a detection result;

[0286] The target time unit is any time unit before the first time unit corresponding to the first target resource, the first target resource is a random access resource unit associated with the second target resource and meeting the specified conditions, and the second target resource is any resource unit in a resource set pre-allocated by the base station to the user terminal for unauthorized data reporting;

[0287] A first sending module 420 is configured to send a random access signal to the base station through the first target resource if the detection result indicates that the current TA has expired; the random access signal is used to indicate that the base station needs to reconfigure a new TA for the user terminal;

[0288] A first receiving module 430 is configured to receive the new TA returned by the base station;

[0289] The second sending module 440 is configured to send target data to the base station through the second target resource based on the new TA; the target data is data that the user terminal currently needs to report to the base station.

[0290] Optionally, the specified conditions include:

[0291] The time unit where the first target resource is located is before the time unit where the second target resource is located;

[0292] The specified conditions also include:

[0293] The target difference is minimal; or

[0294] The target difference is greater than or equal to a preset value and the target difference is minimum;

[0295] The target difference is a difference between a time unit number of a time unit where the first target resource is located and a time unit number of a time unit where the second target resource is located.

[0296] Optionally, the random access signal is a designated random access preamble code pre-acquired by the user terminal;

[0297] The designated random access preamble is a preamble pre-allocated by the base station to the user terminal and used to indicate that the current TA of the user terminal has failed.

[0298] Reference Figure 7 , Figure 7 is based on Figure 6 In another block diagram of a device for setting a transmission timing advance based on the embodiment shown, the first receiving module 430 includes:

[0299] The receiving submodule 431 is configured to receive the new TA sent by the base station through the second random access signaling.

[0300] Reference Figure 8 , Figure 8 is based on Figure 7 In another block diagram of a device for setting a transmission timing advance based on the embodiment shown, the receiving submodule 431 includes:

[0301] The first receiving unit 4311 is configured to receive a first physical downlink shared channel PDSCH sent by the base station through second random access signaling;

[0302] The first PDSCH includes first target random access response information corresponding to the user terminal, and the first target random access response message carries the random access preamble, the new TA and the reserved value.

[0303] Optionally, the first PDSCH is a PDSCH scheduled by a first target downlink control information DCI; wherein, the first target DCI is a DCI scrambled by a first wireless network temporary identifier RNTI, and the first RNTI is an RNTI used to identify the resource block used by the user terminal to send a corresponding random access preamble code.

[0304] Reference Figure 9 , Figure 9 is based on Figure 7 In another block diagram of a device for setting a transmission timing advance based on the embodiment shown, the receiving submodule 431 includes:

[0305] The second receiving unit 4312 is configured to receive a second physical downlink shared channel PDSCH sent by the base station through a second random access signaling;

[0306] The second PDSCH includes second target random access response information corresponding to the user terminal, and the second target random access response message only carries the random access preamble and the new TA.

[0307] Optionally, the second PDSCH is a PDSCH scheduled by a second target downlink control information DCI; wherein, the second target DCI is a DCI scrambled by a second wireless network temporary identifier RNTI, and the second RNTI is an RNTI used to identify the resource block used by the user terminal to send the corresponding random access preamble code.

[0308] Optionally, the value of the second RNTI is different from the value of the first RNTI.

[0309] Reference Figure 10 , Figure 10 is based on Figure 7 In another block diagram of a device for setting a transmission timing advance based on the embodiment shown, the receiving submodule 431 includes:

[0310] The third receiving unit 4313 is configured to receive third target downlink control information DCI sent by the base station through the second random access signaling;

[0311] The third target DCI includes third target random access response information corresponding to the user terminal, and the third target random access response message carries at least the new TA.

[0312] Optionally, the third target DCI is DCI that is scrambled by a third radio network temporary identifier RNTI.

[0313] Reference Figure 11 , Figure 11 is based on Figure 6 A block diagram of another device for setting a transmission timing advance based on the illustrated embodiment is shown, wherein the device further includes:

[0314] The first determining module 450 is configured to use the RNTI allocated by the base station to the user terminal when the base station is in a connected state with the user terminal and used to identify the user service as the third RNTI; or

[0315] The second determining module 460 is configured to use the time unit number of the time unit corresponding to the random access preamble corresponding to the user terminal as the value of the third RNTI.

[0316] Reference Figure 12 , Figure 12 This is a block diagram of a device for setting a transmission timing advance according to an exemplary embodiment. The device is used in a base station, and the device includes:

[0317] The second detection module 510 is configured to detect whether a random access signal sent by the user terminal is received on the first target resource;

[0318] The first target resource is a random access resource that satisfies a specified condition and is associated with the second target resource, and the second target resource is any resource unit in a resource set pre-allocated by the base station to the user terminal for unauthorized data reporting;

[0319] The execution module 520 is configured to reconfigure a new transmission timing advance TA for the user terminal according to the random access signal if the random access signal is detected on the first target resource;

[0320] A third sending module 530 is configured to return the new TA to the user terminal;

[0321] The second receiving module 540 is configured to receive target data sent by the user terminal through the second target resource based on the new TA; the target data is data that the user terminal currently needs to report to the base station.

[0322] Optionally, the specified conditions include:

[0323] The time unit where the first target resource is located is before the time unit where the second target resource is located;

[0324] The specified conditions also include:

[0325] The target difference is minimal; or

[0326] The target difference is greater than or equal to a preset value and the target difference is minimum;

[0327] The target difference is a difference between a time unit number of a time unit where the first target resource is located and a time unit number of a time unit where the second target resource is located.

[0328] Optionally, the random access signal is a designated random access preamble code pre-acquired by the user terminal; wherein the designated random access preamble code is a preamble code pre-assigned by the base station to the user terminal and used to indicate that the current TA of the user terminal has expired.

[0329] Reference Figure 13 , Figure 13 is based on Figure 12 In another block diagram of a device for setting a transmission timing advance based on the illustrated embodiment, the third sending module 530 includes:

[0330] The sending submodule 531 is configured to return the new TA to the user terminal through a second random access signaling.

[0331] Reference Figure 14 , Figure 14 is based on Figure 13 In another block diagram of a device for setting a transmission timing advance based on the embodiment shown, the sending submodule 531 includes:

[0332] The first sending unit 5311 is configured to send a first physical downlink shared channel PDSCH to the user terminal through a second random access signaling;

[0333] The first PDSCH includes first target random access response information corresponding to the user terminal, and the first target random access response message carries the random access preamble, the new TA and the reserved value.

[0334] Optionally, the first PDSCH is a PDSCH scheduled by a first target downlink control information DCI; wherein, the first target DCI is a DCI scrambled by a first wireless network temporary identifier RNTI, and the first RNTI is an RNTI used to identify the resource block used by the user terminal to send a corresponding random access preamble code.

[0335] Reference Figure 15 , Figure 15 is based on Figure 13 In another block diagram of a device for setting a transmission timing advance based on the embodiment shown, the sending submodule 531 includes:

[0336] The second sending unit 5312 is configured to send a second physical downlink shared channel PDSCH to the user terminal through a second random access signaling;

[0337] The second PDSCH includes second target random access response information corresponding to the user terminal, and the second target random access response message only carries the random access preamble and the new TA.

[0338] Optionally, the second PDSCH is a PDSCH scheduled by a second target downlink control information DCI; wherein, the second target DCI is a DCI scrambled by a second wireless network temporary identifier RNTI, and the second RNTI is an RNTI used to identify the resource block used by the user terminal to send the corresponding random access preamble code.

[0339] Optionally, the value of the second RNTI is different from the value of the first RNTI.

[0340] Reference Figure 16 , Figure 16 is based on Figure 13 In another block diagram of a device for setting a transmission timing advance based on the embodiment shown, the sending submodule 531 includes:

[0341] The third sending unit 5313 is configured to send third target downlink control information DCI to the user terminal through the second random access signaling;

[0342] The third target DCI includes third target random access response information corresponding to the user terminal, and the third target random access response message carries at least the new TA.

[0343] Optionally, the third target DCI is DCI that is scrambled by a third radio network temporary identifier RNTI.

[0344] Reference Figure 17 , Figure 17 is based on Figure 12 A block diagram of another device for setting a transmission timing advance based on the illustrated embodiment is shown, wherein the device further includes:

[0345] The third determining module 550 is configured to use the RNTI allocated by the base station to the user terminal when the base station is in a connected state with the user terminal and used to identify the user service as the third RNTI; or

[0346] The fourth determining module 560 is configured to use the time unit number of the time unit corresponding to the random access preamble corresponding to the user terminal as the value of the third RNTI.

[0347] For the device embodiments, since they basically correspond to the method embodiments, the relevant parts can be referred to the partial description of the method embodiments. The device embodiments described above are merely illustrative, wherein the units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the disclosed solution. A person of ordinary skill in the art can understand and implement it without paying any creative work.

[0348] Correspondingly, the present disclosure further provides a computer-readable storage medium, wherein the storage medium stores a computer program, and the computer program is used to execute any one of the above-mentioned methods for setting the transmission timing advance for the user side.

[0349] Correspondingly, the present disclosure also provides a computer-readable storage medium, which stores a computer program, and the computer program is used to execute any one of the above-mentioned methods for setting the transmission timing advance for the base station side.

[0350] Accordingly, the present disclosure further provides a device for setting a transmission timing advance, the device being used at a user terminal and comprising:

[0351] processor;

[0352] a memory for storing processor-executable instructions;

[0353] Wherein, the processor is configured to:

[0354] Detecting the current transmission timing advance TA in the target time unit to obtain a detection result;

[0355] The target time unit is any time unit before the first time unit corresponding to the first target resource, the first target resource is a random access resource unit associated with the second target resource and meeting the specified conditions, and the second target resource is any resource unit in a resource set pre-allocated by the base station to the user terminal for unauthorized data reporting;

[0356] If the detection result indicates that the current TA has expired, sending a random access signal to the base station through the first target resource; the random access signal is used to indicate that the base station needs to reconfigure a new TA for the user terminal;

[0357] receiving the new TA returned by the base station;

[0358] Based on the new TA, target data is sent to the base station through the second target resource; the target data is data that the user terminal currently needs to report to the base station.

[0359] like Figure 18 As shown, Figure 18 FIG1 is a structural diagram of a data transmission device 1800 according to an exemplary embodiment. The device 1800 may be provided as a user terminal. Figure 18 The device 1800 includes a processing component 1822, a wireless transmission / reception component 1824, an antenna component 1826, and a signal processing part specific to the wireless interface. The processing component 1822 may further include one or more processors.

[0360] One of the processors in the processing component 1822 may be configured to execute any of the above methods for setting the transmission timing advance TA on the user side.

[0361] Accordingly, the present disclosure further provides a device for setting a transmission timing advance, the device being used in a base station, comprising:

[0362] processor;

[0363] a memory for storing processor-executable instructions;

[0364] Wherein, the processor is configured to:

[0365] detecting, on the first target resource, whether a random access signal sent by the user terminal is received;

[0366] The first target resource is a random access resource that satisfies a specified condition and is associated with the second target resource, and the second target resource is any resource unit in a resource set pre-allocated by the base station to the user terminal for unauthorized data reporting;

[0367] If the random access signal is detected on the first target resource, reconfigure a new transmission timing advance TA for the user terminal according to the random access signal;

[0368] Returning the new TA to the user terminal;

[0369] Receive target data sent by the user terminal through the second target resource based on the new TA; the target data is data that the user terminal currently needs to report to the base station.

[0370] like Figure 19 As shown, Figure 19 FIG1 is a schematic diagram showing a structure of a data transmission device 1900 according to an exemplary embodiment. The device 1900 may be provided as a base station. Figure 19 The device 1900 includes a processing component 1922, a wireless transmission / reception component 1924, an antenna component 1926, and a signal processing part specific to the wireless interface. The processing component 1922 may further include one or more processors.

[0371] One of the processors in the processing component 1922 may be configured to execute any of the above-mentioned methods for setting the transmission timing advance TA on the base station side.

[0372] Other embodiments of the present disclosure will readily occur to those skilled in the art after considering the specification and practicing the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the present disclosure being indicated by the following claims.

[0373] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A method for setting a transmission timing advance (TA), characterized in that: The method is used on a user terminal, and includes: Detecting the current transmission timing advance TA in the target time unit to obtain a detection result; If the detection result indicates that the current TA has failed, sending a random access signal to the base station through the first target resource; and receiving a new TA returned by the base station; Based on the new TA, sending target data to the base station through a second target resource; The time unit where the first target resource is located is before the time unit where the second target resource is located, and the second target resource is any resource unit in a resource set for unauthorized data reporting; The receiving the new TA returned by the base station includes: receiving the new TA sent by the base station through second random access signaling; The receiving the new TA sent by the base station through the second random access signaling includes: Receiving a first physical downlink shared channel PDSCH sent by the base station through second random access signaling; The first PDSCH includes first target random access response information corresponding to the user terminal, and the first target random access response message carries a random access preamble, the new TA and a reserved value.

2. The method according to claim 1, characterized in that The target difference is minimal; or The target difference is greater than or equal to a preset value and the target difference is minimum; The target difference is a difference between a time unit number of a time unit where the first target resource is located and a time unit number of a time unit where the second target resource is located.

3. The method according to claim 1, characterized in that The random access signal is a preamble code pre-allocated by the base station to the user terminal and used to indicate that the current TA of the user terminal has failed.

4. The method according to claim 1, wherein The first PDSCH is scheduled by a first target DCI, and the first target DCI is scrambled by a first RNTI; The second PDSCH is scheduled by a second target DCI, and the second target DCI is scrambled by a second RNTI; The first RNTI is different from the second RNTI.

5. A method for setting a transmission timing advance, characterized in that: The method is used for a base station, and the method includes: detecting, on the first target resource, whether a random access signal sent by the user terminal is received; If the random access signal is detected on the first target resource, reconfigure a new transmission timing advance TA for the user terminal according to the random access signal; Returning the new TA to the user terminal; receiving target data sent by the user terminal through a second target resource based on the new TA; The time unit where the first target resource is located is before the time unit where the second target resource is located, and the second target resource is any resource unit in a resource set for unauthorized data reporting; The returning the new TA to the user terminal includes: Returning the new TA to the user terminal through second random access signaling; The returning the new TA to the user terminal through the second random access signaling includes: Sending a first physical downlink shared channel PDSCH to the user terminal through a second random access signaling; The first PDSCH includes first target random access response information corresponding to the user terminal, and the first target random access response message carries a random access preamble, the new TA and a reserved value.

6. The method according to claim 5, characterized in that The target difference is minimal; or The target difference is greater than or equal to a preset value and the target difference is minimum; The target difference is a difference between a time unit number of a time unit where the first target resource is located and a time unit number of a time unit where the second target resource is located.

7. The method according to claim 5, characterized in that The random access signal is a preamble code pre-allocated by the base station to the user terminal and used to indicate that the current TA of the user terminal has failed.

8. The method according to claim 5, characterized in that The first PDSCH is scheduled by a first target DCI, and the first target DCI is scrambled by a first RNTI; The second PDSCH is scheduled by a second target DCI, and the second target DCI is scrambled by a second RNTI; The first RNTI is different from the second RNTI.

9. A device for setting a transmission timing advance, characterized in that: The device is used at a user end, and includes: A first detection module is configured to detect the current transmission timing advance TA in a target time unit to obtain a detection result; A first sending module is configured to send a random access signal to the base station through a first target resource if the detection result indicates that the current TA has failed; A first receiving module is configured to receive a new TA returned by the base station; a second sending module, configured to send target data to the base station through a second target resource based on the new TA; The time unit where the first target resource is located is before the time unit where the second target resource is located, and the second target resource is any resource unit in a resource set for unauthorized data reporting; The first receiving module includes: a receiving submodule, configured to receive the new TA sent by the base station through second random access signaling; Wherein, the receiving submodule includes: A first receiving unit is configured to receive a first physical downlink shared channel PDSCH sent by the base station through second random access signaling; The first PDSCH includes first target random access response information corresponding to the user terminal, and the first target random access response message carries a random access preamble, the new TA and a reserved value.

10. The device according to claim 9, characterized in that The target difference is minimal; or The target difference is greater than or equal to a preset value and the target difference is minimum; The target difference is a difference between a time unit number of a time unit where the first target resource is located and a time unit number of a time unit where the second target resource is located.

11. The device according to claim 9, characterized in that The random access signal is a preamble code pre-allocated by the base station to the user terminal and used to indicate that the current TA of the user terminal has failed.

12. The device according to claim 9, characterized in that The first PDSCH is scheduled by a first target DCI, and the first target DCI is scrambled by a first RNTI; The second PDSCH is scheduled by a second target DCI, and the second target DCI is scrambled by a second RNTI; The first RNTI is different from the second RNTI.

13. A device for setting a transmission timing advance, characterized in that: The device is used in a base station, and includes: A second detection module is configured to detect whether a random access signal sent by the user terminal is received on the first target resource; an execution module, configured to, if the random access signal is detected on the first target resource, reconfigure a new transmission timing advance TA for the user terminal according to the random access signal; A third sending module is configured to return the new TA to the user terminal; A second receiving module is configured to receive target data sent by the user terminal through a second target resource based on the new TA; The time unit where the first target resource is located is before the time unit where the second target resource is located, and the second target resource is any resource unit in a resource set for unauthorized data reporting; The third sending module includes: a sending submodule, configured to return the new TA to the user terminal through a second random access signaling; Wherein, the sending submodule includes: A first sending unit is configured to send a first physical downlink shared channel PDSCH to the user terminal through a second random access signaling; The first PDSCH includes first target random access response information corresponding to the user terminal, and the first target random access response message carries a random access preamble, the new TA and a reserved value.

14. The device according to claim 13, characterized in that The target difference is minimal; or The target difference is greater than or equal to a preset value and the target difference is minimum; The target difference is a difference between a time unit number of a time unit where the first target resource is located and a time unit number of a time unit where the second target resource is located.

15. The device according to claim 13, characterized in that The random access signal is a preamble code pre-allocated by the base station to the user terminal and used to indicate that the current TA of the user terminal has failed.

16. The device according to claim 13, characterized in that The sending submodule includes: A second sending unit is configured to send a second physical downlink shared channel PDSCH to the user terminal through a second random access signaling; The second PDSCH includes second target random access response information corresponding to the user terminal, and the second target random access response message only carries a random access preamble and the new TA.

17. A computer-readable storage medium, characterized in that The storage medium stores a computer program, and the computer program is used to execute the method for setting the transmission timing advance according to any one of claims 1 to 4.

18. A computer-readable storage medium, characterized in that The storage medium stores a computer program, and the computer program is used to execute the method for setting the transmission timing advance according to any one of claims 5 to 8.

19. A device for setting a transmission timing advance, characterized in that: The device is used at a user end and includes: processor; a memory for storing processor-executable instructions; The processor is configured to execute the executable instructions to implement the method of claim 1.

20. A device for setting a transmission timing advance, characterized in that: The device is used in a base station and includes: processor; a memory for storing processor-executable instructions; The processor is configured to execute the executable instructions to implement the method of claim 5.

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