Timing advance method, apparatus, communication device, and storage medium

Abstract

The present disclosure includes a timing advance method, device, communication device and storage medium. The method is executed by a terminal device, and the method comprises: configuring a first timing advance value other than zero for SL data (402). The method provided by the embodiments of the present disclosure configures a first timing advance value other than zero for SL data by the terminal device, when the NR licensed spectrum service and the NR Sidelink service share the same frequency band, the UL data corresponding to the NR licensed spectrum service and the SL data corresponding to the NR Sidelink service are both subjected to timing advance during transmission, which avoids the possibility of conflict between the two types of data, avoids the conflict between the currently transmitted UL data subjected to timing advance and the previously transmitted SL data not subjected to timing advance, and ensures the successful transmission of data.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of communication, and in particular, relates to a timing advance method and device, a communication device, and a storage medium. BACKGROUND

[0002] In a vehicle to everything (V2X) system, two communication interfaces can be provided, which are respectively referred to as a Uu interface (cellular communication interface) and a PC5 interface (direct communication interface).

[0003] A terminal device transmits uplink (UL) data to a network device by using the Uu interface, or transmits sidelink (SL) data to another terminal device by using the PC5 interface.

[0004] In the related art, there is a possibility of conflict between SL data and other types of data during transmission. For example, in a scenario of simultaneously transmitting SL data and UL data on the same frequency band, there is a possibility of conflict between SL data and UL data due to the timing advance amount corresponding to the UL data. SUMMARY

[0005] Embodiments of the present disclosure provide a timing advance method, device, communication device, and storage medium, and the technical solutions are as follows:

[0006] According to an aspect of the present disclosure, a timing advance method is provided, which is performed by a terminal device, and the method comprises:

[0007] A non-zero first timing advance amount is configured for SL data.

[0008] According to an aspect of the present disclosure, a timing advance method is provided, which is performed by a network device, and the method comprises:

[0009] A target information element is sent to a terminal device, which is used to indicate to the terminal device that a non-zero first timing advance amount is configured for SL data.

[0010] According to an aspect of the present disclosure, a timing advance device is provided, which comprises a configuration module.

[0011] The configuration module is configured to configure a non-zero first timing advance amount for SL data.

[0012] According to an aspect of the present disclosure, a timing advance device is provided, which comprises an indication module.

[0013] The indication module is configured to send a target cell to the terminal device, and the target cell is used to indicate the terminal device to configure a non-zero first timing advance for SL data.

[0014] According to an aspect of the present disclosure, a terminal device is provided, which comprises a processor, a transceiver connected to the processor, and a memory for storing executable instructions of the processor, wherein the processor is configured to load and execute the executable instructions to implement the timing advance method according to the above aspect.

[0015] According to an aspect of the present disclosure, a network device is provided, which comprises a processor, a transceiver connected to the processor, and a memory for storing executable instructions of the processor, wherein the processor is configured to load and execute the executable instructions to implement the timing advance method according to the above aspect.

[0016] According to an aspect of the present disclosure, a chip is provided, which comprises programmable logic circuit and / or program instructions, and when the chip is running, is used to implement the timing advance method according to the above aspect.

[0017] According to an aspect of the present disclosure, a computer readable storage medium is provided, which stores executable instructions, and the executable instructions are loaded and executed by the processor to implement the timing advance method according to the above aspect.

[0018] According to an aspect of the present disclosure, a computer program product or computer program is provided, which comprises computer instructions stored in a computer readable storage medium. A processor of a computer device reads the computer instructions from the computer readable storage medium, and the processor executes the computer instructions to make the computer device execute the timing advance method according to the above aspect.

[0019] The technical solutions provided by the embodiments of the present disclosure have at least the following beneficial effects:

[0020] By configuring the terminal device with a non-zero first timing advance for SL data, when NR licensed spectrum service and NRSidelink service share the same frequency band, the UL data corresponding to the NR licensed spectrum service and the SL data corresponding to the NRSidelink service are both subjected to timing advance during transmission, thereby avoiding the possibility of collision between the two types of data, such as avoiding the collision between the currently transmitted timing-advanced UL data and the previously transmitted non-timing-advanced SL data, and ensuring the successful transmission of data. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the embodiments description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 is a block diagram of a communication system provided by an example embodiment of the present disclosure;

[0023] Figure 2 is a schematic diagram of timing advance provided by an example embodiment of the present disclosure;

[0024] Figure 3 is a schematic diagram of UL data and SL data transmission conflict provided by an example embodiment of the present disclosure;

[0025] Figure 4 is a flowchart of a timing advance method provided by an example embodiment of the present disclosure;

[0026] Figure 5 is a flowchart of a timing advance method provided by an example embodiment of the present disclosure;

[0027] Figure 6 is a flowchart of a timing advance method provided by an example embodiment of the present disclosure;

[0028] Figure 7 is a block diagram of a timing advance device provided by an example embodiment of the present disclosure;

[0029] Figure 8 is a block diagram of a timing advance device provided by an example embodiment of the present disclosure;

[0030] Figure 9 is a block diagram of a communication device provided by an example embodiment of the present disclosure. DETAILED DESCRIPTION

[0031] In order to make the objects, technical solutions and advantages of the present disclosure clearer, the embodiments of the present disclosure will be further described in detail below with reference to the drawings.

[0032] In order to make the objects, technical solutions and advantages of the present disclosure clearer, the embodiments of the present disclosure will be further described in detail below with reference to the drawings.

[0033] Figure 1A block diagram of a communication system supporting direct communication is shown, which is provided by one illustrative embodiment of the present disclosure. The communication system can be a schematic diagram of a non-roaming 5G system architecture, which can be applied to vehicle to everything (V2X) services using D2D technology.

[0034] The system architecture includes a data network (DN) in which a V2X application server required by V2X services is arranged. The system architecture also includes a 5G core network, and network functions of the 5G core network include: unified data management (UDM), policy control function (PCF), network exposure function (NEF), application function (AF), unified data repository (UDR), access and mobility management function (AMF), session management function (SMF), and user plane function (UPF).

[0035] The system architecture also includes a new generation-radio access network (NG-RAN) and four terminal devices (i.e., terminal device 1 to terminal device 4) which are schematically shown, wherein each terminal device is arranged with a V2X application (Application). One or more access network devices, such as a base station (gNB), are arranged in the radio access network.

[0036] In the system architecture, the data network and the user plane function in the 5G core network are connected through an N6 reference point, and the V2X application server and the V2X application in the terminal device are connected through a V1 reference point; the radio access network and the AMF function and the UPF function in the 5G core network are connected, and the radio access network is connected with the terminal device 1 and the terminal device 5 through a Uu reference point, respectively; the plurality of terminal devices are connected through a PC5 reference point for direct communication, and the plurality of V2X applications are connected through a V5 reference point. The above reference points can also be referred to as "interfaces".

[0037] In the embodiments of the present disclosure, the terminal device transmits UL data to the radio access network through a Uu interface, or transmits SL data to other terminal devices using a PC5 interface.

[0038] In the embodiments of the present disclosure, the terminal device can refer to a user equipment (UE), an access terminal, a user unit, a user station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a wireless communication device, a user agent or a user apparatus. Alternatively, the terminal device can also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a 5th Generation System (5GS) or a terminal device in a future evolved Public Land Mobile Network (PLMN), etc. The embodiments of the present disclosure are not limited thereto. For the convenience of description, the above-mentioned devices are collectively referred to as terminal devices. In the embodiments of the present disclosure, the network device refers to an access network device such as a base station unless otherwise specified.

[0039] Before introducing the technical solutions of the present disclosure, some technical knowledge related to the present disclosure is introduced and described.

[0040] 1. Timing Advance (TA) of NR licensed spectrum service

[0041] Timing advance is used for uplink transmission of the terminal device, which means that the system frame of the terminal device sending UL data is advanced by a certain time compared with the corresponding downlink frame, so that the signals from different terminal devices in the same subframe but different frequency domain resources are basically aligned in time at the network device. The network device sends the timing advance of the uplink to each terminal device, and the terminal device determines the timing of sending UL data according to the received timing advance. The specific timing advance is (N TA +N TA offset )Tc.

[0042] ·N TA is a measurement value sent to the terminal device as part of the timing advance command.

[0043] ·N TA Offset is a fixed value that varies according to different frequency bands and subcarrier spacings.

[0044] • Tc is the basic time unit of the 5G NR system.

[0045] Wherein:

[0046] N TA offset Configured by the network to the terminal device through the information unit (Information Element, IE) n-TimingAdvanceOffset (see TS 38.331):

[0047]

[0048] In combination with reference Figure 2 , the starting time of the terminal device's uplink radio frame 22 transmission is advanced by (N TA +N TA offset )Tc seconds relative to the starting time of the corresponding downlink radio frame 21.

[0049] • N TA Indicated by the Medium Access Control (MAC) control element (Control Element, CE) or the random access response (Random Access Response, RAR) sent by the network device (see TS 38.213-4.2).

[0050] In the case of using RAR for indication, the value indicated in the RAR is T A , T A = 0, 1, 2,..., 3846, and the corresponding calculation formula of N TA is: N TA = T A ·16·64 / 2 μ , where μ is the value corresponding to the subcarrier spacing (Sub-Carrier Spacing, SCS).

[0051] In the case of using MAC CE for indication, the value indicated in the MAC CE is T A , T A = 0, 1, 2,..., 63, and the corresponding calculation formula of N TA is: N TA_new = N TA_old +(T A -31)·16·64 / 2 μ , where μ is the value corresponding to the subcarrier spacing, N TA_old is the value of N TA before indication, and N TA_new is the value of N TA after indication.

[0052] ·N TAoffset The values ​​can be found in the table below (see TS 38.133):

[0053] Table 7.1.2-2: N TAoffset value

[0054]

[0055] ·T C = 0.509ns.

[0056] 2. Direct Communication (Sidelink)

[0057] Vehicle-to-everything (V2X) technology offers two communication interfaces: the Uu interface (cellular communication interface) and the PC5 interface (direct link communication interface). The current R17 sidelink enhancement project has approved "intra-band con-current V2X operating bands in licensed band," enabling the simultaneous operation of NR licensed spectrum services and NR Sidelink services on the same frequency band, a new scenario.

[0058] In existing standards, for terminal devices performing NR Sidelink services, N TA =0 and N TAoffset =0; however, for terminal devices performing NR licensed spectrum services, the calculation is performed in advance using the above method. Therefore, in the current R17 scenario where NR licensed spectrum services and NR Sidelink services are simultaneously running on the same frequency band, there is a possibility of conflict between SL data and UL data, such as... Figure 3 As shown:

[0059] Figure 3 The image shows SL data with different time domain lengths for three scenarios: SCS = 15kHz, SCS = 30kHz, and SCS = 60kHz. The transmission time of the SL data is aligned with the downlink timing of the terminal device; that is, there is no timing advance in the SL data. Furthermore, Figure 3 The figures show a timing advance of 15 microseconds (N). TA = 2 microseconds, N TAoffset =13 microseconds), timing advance =22 microseconds (N) TA = 2 microseconds, N TAoffset =20 microseconds) In these two cases, the UL data with different time domain lengths are not aligned with the downlink timing of the terminal device, that is, the UL data is timing ahead.

[0060] likeFigure 3 As shown, in the case that the UL data is sent based on the timing advance of 22 microseconds, it will conflict with the SL data corresponding to SCS = 60 kHz previously transmitted by the terminal device.

[0061] As can be known from the above description, currently, the 3GPP defines the transmission timing advance of SL data as zero, while the UL data of the Uu interface has a transmission timing advance. When the NR licensed spectrum service and the NR Sidelink service share the same frequency band, the UL data corresponding to the NR licensed spectrum service and the SL data corresponding to the NR Sidelink service may conflict, resulting in incorrect reception or missing of data.

[0062] Therefore, the embodiments of the present disclosure mainly solve the possible conflict problem under the condition that the NR licensed spectrum service and the NR Sidelink service are simultaneously performed on the same frequency band. In the embodiments of the present disclosure, the terminal device configures a non-zero first timing advance for the SL data. When the NR licensed spectrum service and the NR Sidelink service share the same frequency band, the UL data corresponding to the NR licensed spectrum service and the SL data corresponding to the NR Sidelink service are both subjected to timing advance during transmission, thereby avoiding the possibility of conflict between the two types of data, such as avoiding conflict between the currently transmitted timing-advanced UL data and the previously transmitted non-timing-advanced SL data, and ensuring successful transmission of data.

[0063] Next, the embodiments are exemplarily described as follows.

[0064] Figure 4 A flowchart of a timing advance method provided by an exemplary embodiment of the present disclosure is shown, which can be applied to a terminal device in a communication system as shown. Figure 1 The method can include (step 402):

[0065] Step 402, the terminal device configures a non-zero first timing advance for the SL data.

[0066] In the embodiments of the present disclosure, the transmission of the SL data has a timing advance mechanism. Specifically, the SL data corresponds to a non-zero first timing advance. Exemplarily, the system frame in which the terminal device transmits the SL data is advanced by the first timing advance in the time domain compared with the corresponding downlink frame.

[0067] Optionally, the first timing advance corresponding to the SL data is calculated based on the following formula: (N TA +N TA offset )Tc. Wherein, Tc is the basic time unit of the 5G NR system, T C = 0.509 ns; N TA is the first timing advance measurement value; N TAoffsetis a first timing advance offset value. In order to achieve a non-zero first timing advance, exemplary, N TA offset is a non-zero value. Exemplary, N TA is a non-zero value. Exemplary, N TA offset and N TA are non-zero values.

[0068] In summary, the method provided by the embodiment configures a non-zero first timing advance for SL data by a terminal device, when NR licensed spectrum service and NR Sidelink service share the same frequency band, UL data corresponding to the NR licensed spectrum service and SL data corresponding to the NR Sidelink service are both subjected to timing advance during transmission, which avoids the possibility of conflict between the two types of data, such as avoiding conflict between the currently transmitted timing-advanced UL data and the previously transmitted non-timing-advanced SL data, and ensures successful transmission of data.

[0069] In an illustrative embodiment, the terminal device configures a non-zero first timing advance for SL data on a target frequency band; wherein the target frequency band is a frequency band allowing coexistence of SL data and UL data.

[0070] That is, the terminal device determines whether to configure a non-zero first timing advance for SL data according to the frequency band used by the NR Sidelink service, and configures a non-zero first timing advance for SL data corresponding to the NR Sidelink service operating on the target frequency band, in a frequency band allowing coexistence of NR licensed spectrum service and NR Sidelink service, i.e., a target frequency band allowing coexistence of SL data and UL data. Since the terminal device configures a first timing advance for SL data on part of the frequency band, the energy consumption of the terminal device is saved.

[0071] Optionally, the target frequency band is specified by a communication standard. Exemplary, the target frequency band is an n47 frequency band.

[0072] Next, the manner in which the terminal device determines the value of the first timing advance is described, in the case where the terminal device configures a non-zero first timing advance for SL data on the target frequency band.

[0073] In an illustrative embodiment, the terminal device configures a corresponding first timing advance for SL data according to a second timing advance corresponding to UL data coexisting on the same frequency band.

[0074] Optionally, the second timing advance is calculated based on the following formula: (N TA +N TA offset )Tc. Wherein Tc is a basic time unit of the 5G NR system, T C = 0.509 ns; N TAis a timing advance measurement value corresponding to the UL data. TA offset is a timing advance offset value corresponding to the UL data.

[0075] Optionally, the terminal device configures a non-zero first timing advance value for the SL data on the target frequency band according to a second timing advance value of target UL data on the target frequency band.

[0076] The target UL data on the target frequency band includes UL data whose data transmission position is after the SL data on the time domain corresponding to the target frequency band, or UL data that is originally scheduled to be transmitted at the data transmission position of the SL data on the time domain corresponding to the target frequency band (in fact, the data transmission position is used for SL data transmission and not for UL data transmission). Figure 5 The scheme is described.

[0077] Figure 5 A flowchart of a timing advance method provided by one exemplary embodiment of the present disclosure is shown, which can be applied to a terminal device in a communication system as shown. Figure 1 The method can include (steps 502 to 506):

[0078] Step 502, the network device sends a timing advance command to the terminal device, the timing advance command being used to indicate a second N TA .

[0079] The second N TA is a timing advance measurement value corresponding to the target UL data on the target frequency band.

[0080] Optionally, the network device performs synchronization detection on the UL data sent by the terminal device and determines the second N TA , and the specific process is as follows:

[0081] 1) Initial uplink synchronization

[0082] The terminal device achieves initial uplink synchronization through a random access process. In the initial access process, the network device measures a random access (RACH) signal and calculates a specific timing advance value according to a random access preamble sent by the terminal device.

[0083] 2) Uplink synchronization update

[0084] After the initial connection is completed, the terminal device needs to constantly update its uplink timing advance to maintain uplink synchronization, and the network device determines the timing advance of each terminal device based on uplink measurement. If the terminal device in the embodiment of the present disclosure needs to perform timing advance correction, the network device will send a timing advance command (TAG) to the terminal device, requiring it to adjust the transmission timing of the uplink, and then the terminal device will adjust the timing advance measurement value corresponding to the target UL data on the target frequency band to a second N TA .

[0085] Step 504, the terminal device receives the timing advance command sent by the network device.

[0086] The timing advance command is used to indicate the second N TA , the second N TA is the timing advance measurement value corresponding to the target UL data on the target frequency band.

[0087] Step 506, the terminal device determines the first timing advance corresponding to the SL data based on the sum of the second N TA and the second N TA offset on the target frequency band.

[0088] The second N TA offset is the timing advance offset value corresponding to the target UL data on the target frequency band. Optionally, the value of the second N TA offset is determined based on Table 7.1.2-2 in TS 38.133 as described above.

[0089] Optionally, the first timing advance = (second N TA + second N TA offset )Tc. Wherein Tc is the basic time unit of the 5G NR system, T C = 0.509ns.

[0090] In summary, the method provided by the embodiment configures the terminal device with a non-zero first timing advance for SL data. When the NR licensed spectrum service and the NR Sidelink service share the same frequency band, the UL data corresponding to the NR licensed spectrum service and the SL data corresponding to the NR Sidelink service are both subjected to timing advance during transmission, avoiding the possibility of conflict between the two types of data, such as avoiding conflict between the currently transmitted timing-advanced UL data and the previously transmitted non-timing-advanced SL data, and ensuring successful transmission of data.

[0091] Meanwhile, the method provided by the embodiment is configured to configure the terminal device with a corresponding first timing advance based on a second timing advance corresponding to UL data coexisting on the same frequency band, so as to determine a proper first timing advance and avoid conflict between UL data corresponding to NR licensed spectrum service and SL data corresponding to NR Sidelink service.

[0092] In a possible implementation, the terminal device autonomously configures the SL data with a non-zero first timing advance.

[0093] In another possible implementation, the terminal device configures the SL data with a non-zero first timing advance based on an indication of the network device. For details, refer to Figure 6 The implementation is exemplarily described.

[0094] Figure 6 A flowchart of a timing advance method provided by an exemplary embodiment of the present disclosure is shown, which can be applied to a communication system as shown in Figure 1 The method can include (steps 602 to 606):

[0095] Step 602, the network device sends a target information element to the terminal device.

[0096] The target information element is used to indicate the terminal device to configure the SL data with a non-zero first timing advance.

[0097] Optionally, the target information element is a newly introduced information element compared with an information element recorded in an existing version of a standard. Exemplarily, the target information element is recorded as SL-TimingAdvanceOffset-flag.

[0098] Optionally, the target information element is carried in the following signaling: Radio Resource Control (RRC) signaling; or, MAC CE; or, RAR.

[0099] Optionally, the network device sends the target information element to the terminal device for a target frequency band, i.e., a frequency band allowing coexistence of SL data and UL data.

[0100] Step 604, the terminal device receives the target information element sent by the network device.

[0101] Correspondingly, the terminal device receives the target information element sent by the network device. The target information element is used to indicate the terminal device with a target frequency band, and the target frequency band is a frequency band allowing coexistence of SL data and UL data.

[0102] Optionally, the target information element is carried in the following signaling: RRC signaling; or, MAC CE; or, RAR.

[0103] At step 606, the terminal device configures a non-zero first timing advance for the SL data based on the indication of the target information element.

[0104] That is, by configuring the terminal device with the target information element, the terminal device is helped to determine whether to configure a non-zero first timing advance for the SL data.

[0105] For example, the target information element includes an indication bit, and when the indication bit is a target value, such as 0 or 1, the terminal device configures a non-zero first timing advance for the SL data.

[0106] To sum up, the method provided in the embodiment configures a non-zero first timing advance for the SL data by the terminal device, when the NR licensed spectrum service and the NR Sidelink service share the same frequency band, the UL data corresponding to the NR licensed spectrum service and the SL data corresponding to the NR Sidelink service are both subjected to timing advance during transmission, which avoids the possibility of conflict between the two types of data, such as avoiding the conflict between the currently transmitted timing-advanced UL data and the previously transmitted non-timing-advanced SL data, and guarantees the successful transmission of data.

[0107] Meanwhile, the method provided in the embodiment sends the target information element to the terminal device by the network device, so that the terminal device can configure a non-zero first timing advance for the SL data based on the indication of the target information element, thereby guaranteeing that the network device side and the terminal device side can perform timing advance for the SL data.

[0108] In an illustrative embodiment, the non-zero first timing advance corresponding to the SL data is a non-zero first N TA offset related.

[0109] That is, the first timing advance corresponding to the SL data is calculated based on the following formula: (N TA +N TA offset )Tc. Wherein, Tc is the basic time unit of the 5G NR system, T C = 0.509 ns; N TA is the first timing advance measurement value; N TAoffset is the first timing advance offset value. In order to realize the non-zero first timing advance, N TA offset is a non-zero value.

[0110] For example, the network device performs synchronization detection on the UL data transmitted by the terminal device and determines the N TA, the terminal device is informed by a timing advance command. When the terminal device performs service switching from NR licensed spectrum service to NR Sidelink service, the terminal device will configure the second N TA and the first N TA offset of the SL data as the switching transmission. TA offset , so as to determine the non-zero first timing advance of the SL data.

[0111] Since the existing timing advance related standards are made for UL data, N TA offset Compared with N TA , the determination method is relatively simple. The method provided in the embodiment sets the N TA offset of the SL data to a non-zero value, and N TA still remains zero, so that the SL data corresponds to a non-zero first timing advance, thereby saving the standardization workload and reducing the implementation difficulty.

[0112] It should be noted that the above method embodiments can be implemented separately or in combination, and the present disclosure does not limit this.

[0113] In the above various embodiments, the steps performed by the terminal device can be implemented separately as a timing advance method on the terminal device side, and the steps performed by the network device can be implemented separately as a timing advance method on the network device side.

[0114] The following is a device embodiment of the present disclosure, which can be used to execute the method embodiments of the present disclosure. For details not disclosed in the device embodiments of the present disclosure, please refer to the method embodiments of the present disclosure.

[0115] Figure 7 A structural block diagram of a timing advance device provided by one exemplary embodiment of the present disclosure is shown, which can be implemented as a terminal device, or as a part of a terminal device. The device comprises: a configuration module 702;

[0116] The configuration module 702 is configured to configure a non-zero first timing advance for SL data.

[0117] In one optional embodiment, the configuration module 702 is configured to configure the non-zero first timing advance for the SL data on a target frequency band.

[0118] The target frequency band is a frequency band that allows the coexistence of the SL data and the UL data.

[0119] In an optional embodiment, the configuration module 702 is configured to configure the first timing advance for the SL data on the target frequency band as a non-zero value according to a second timing advance of the UL data on the target frequency band.

[0120] In an optional embodiment, the configuration module 702 is configured to determine the first timing advance for the SL data based on a sum of a second N TA and a second N TA offset of target UL data on the target frequency band.

[0121] In an optional embodiment, the target UL data includes UL data whose data transmission position is located after the SL data on a time domain corresponding to the target frequency band, or UL data originally scheduled to be transmitted at a data transmission position of the SL data on a time domain corresponding to the target frequency band.

[0122] In an optional embodiment, the apparatus further includes a command receiving module.

[0123] The command receiving module is configured to receive a timing advance command sent by a network device.

[0124] The timing advance command is configured to indicate the second N TA .

[0125] In an optional embodiment, the non-zero first timing advance is related to a non-zero first N TA offset of the SL data.

[0126] In an optional embodiment, the configuration module 702 is configured to receive a target cell element sent by a network device, and configure the non-zero first timing advance for the SL data based on an indication of the target cell element.

[0127] In an optional embodiment, the target cell element is carried in:

[0128] RRC signaling, or MAC CE, or RAR.

[0129] Figure 8 A structural block diagram of a timing advance apparatus provided by one example embodiment of the present disclosure is shown, which can be implemented as a network device or a part of a network device, and the apparatus includes an indication module 802.

[0130] The indication module 802 is configured to send a target cell element to a terminal device, and the target cell element is configured to indicate to the terminal device to configure a non-zero first timing advance for SL data.

[0131] In an optional embodiment, the target information element is carried in the following signaling:

[0132] RRC signaling; or, MAC CE; or, RAR.

[0133] In an optional embodiment, the terminal device configures the first timing advance for the SL data on the target frequency band as a non-zero value, wherein the target frequency band is a frequency band allowing coexistence of the SL data and the UL data.

[0134] In an optional embodiment, the terminal device configures the first timing advance for the SL data on the target frequency band as a non-zero value according to a second timing advance of the UL data on the target frequency band.

[0135] In an optional embodiment, the terminal device determines the first timing advance of the SL data based on a sum of the second N TA and the second N TA offset .

[0136] In an optional embodiment, the target UL data includes: UL data whose data transmission position is after the SL data on a time domain corresponding to the target frequency band; or UL data originally planned to be transmitted at a data transmission position of the SL data on a time domain corresponding to the target frequency band.

[0137] In an optional embodiment, the apparatus further includes a command sending module.

[0138] The command sending module is configured to send a timing advance command to the terminal device.

[0139] The timing advance command is configured to indicate the second N TA .

[0140] In an optional embodiment, the first timing advance is a non-zero value, and the first N TA offset of the SL data is a non-zero value.

[0141] Figure 9 A structural schematic diagram of a communication device (terminal device or network device) provided by one exemplary embodiment of the present disclosure is shown, which includes a processor 101, a receiver 102, a transmitter 103, a memory 104 and a bus 105.

[0142] The processor 101 includes one or more processing cores, and the processor 101 performs various functional applications and information processing by running software programs and modules.

[0143] The receiver 102 and the transmitter 103 can be implemented as a communication component, which can be a communication chip.

[0144] The memory 104 is connected to the processor 101 through the bus 105.

[0145] The memory 104 can be used to store at least one instruction, and the processor 101 is configured to execute the at least one instruction to implement the steps in the above method embodiments.

[0146] In addition, the memory 104 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, including but not limited to: a magnetic or optical disk, an electrically erasable programmable read-only memory (EEPROM), an erasable programmable read-only memory (EPROM), a static random access memory (SRAM), a read-only memory (ROM), a magnetic storage, a flash memory, a programmable read-only memory (PROM).

[0147] In an example embodiment, a chip is also provided, which includes a programmable logic circuit and / or program instructions, and when the chip is running, is configured to implement the timing advance method in the above aspects.

[0148] In an example embodiment, a computer readable storage medium is also provided, which stores at least one instruction, at least one program, a code set or an instruction set, and the at least one instruction, the at least one program, the code set or the instruction set are loaded and executed by the processor to implement the timing advance method provided in the above method embodiments.

[0149] In an example embodiment, a computer program product or a computer program is also provided, which includes computer instructions stored in a computer readable storage medium. The processor of the computer device reads the computer instructions from the computer readable storage medium, and the processor executes the computer instructions to make the computer device execute the timing advance method provided in the above aspects.

[0150] Those skilled in the art can understand that all or part of the steps of the above-mentioned embodiments can be completed by hardware, or can be instructed by a program to complete the related hardware, and the program can be stored in a computer readable storage medium. The storage medium mentioned above can be a read-only memory, a magnetic disk or an optical disk, etc.

[0151] The above only describes optional embodiments of the present disclosure and is not intended to limit the present disclosure. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A method for advancing a timed interval, characterized in that, The method is executed by a terminal device, and the method includes: The terminal device receives a target information element sent by the network device, the target information element being used to determine whether to configure a non-zero first timing advance for side-link SL data; Based on the indication of the target information cell, a non-zero first timing advance is configured for the SL data.

2. The method according to claim 1, characterized in that, Configuring a non-zero first timing advance for the SL data includes: Configure a non-zero first timing advance for the SL data on the target frequency band; The target frequency band is a frequency band that allows the SL data and uplink UL data to coexist.

3. The method according to claim 2, characterized in that, Configuring a non-zero first timing advance for the SL data on the target frequency band includes: Based on the second timing advance of the UL data on the target frequency band, configure a non-zero first timing advance for the SL data on the target frequency band.

4. The method according to claim 3, characterized in that, The step of configuring a non-zero first timing advance for the SL data in the target frequency band based on the second timing advance of the UL data in the target frequency band includes: The second timing advance measurement value N is based on the target UL data corresponding to the target frequency band. TA With the second timing advance offset value N TAoffset The sum between the two values ​​determines the first timing advance corresponding to the SL data.

5. The method according to claim 4, characterized in that, The target UL data includes: In the time domain corresponding to the target frequency band, the data transmission location is the UL data following the SL data; or, In the time domain corresponding to the target frequency band, the UL data originally planned to be transmitted is located at the data transmission position of the SL data.

6. The method according to claim 4, characterized in that, The method further includes: Receive advance timing commands sent by network devices; Wherein, the timing advance command is used to instruct the second N TA .

7. The method according to any one of claims 1 to 6, characterized in that, The non-zero first timing advance and the non-zero first N corresponding to the SL data TAoffset Related.

8. The method according to claim 1, characterized in that, The target information cell is carried in the following signaling: Radio Resource Control (RRC) signaling; or, Media Access Control (MAC) Cell CE; or, Random Access Response (RAR).

9. A method for advancing a timed interval, characterized in that, The method is performed by a network device, and the method includes: A target information element is sent to the terminal device, which is used by the terminal device to determine whether to configure a non-zero first timing advance for side-link SL data.

10. The method according to claim 9, characterized in that, The target information cell is carried in the following signaling: Radio Resource Control (RRC) signaling; or, Media Access Control (MAC) Cell CE; or, Random Access Response (RAR).

11. The method according to claim 9, characterized in that, The terminal device configures a non-zero first timing advance for the SL data on the target frequency band, wherein the target frequency band is a frequency band that allows the SL data and uplink UL data to coexist.

12. The method according to claim 11, characterized in that, The terminal device configures a non-zero first timing advance for the SL data in the target frequency band based on the second timing advance of the UL data in the target frequency band.

13. The method according to claim 12, characterized in that, The terminal device is based on a second timing advance measurement value N corresponding to the target UL data on the target frequency band. TA With the second timing advance offset value N TAoffset The sum between the two values ​​determines the first timing advance corresponding to the SL data.

14. The method according to claim 13, characterized in that, The target UL data includes: In the time domain corresponding to the target frequency band, the data transmission location is the UL data following the SL data; or, In the time domain corresponding to the target frequency band, the UL data originally planned to be transmitted is located at the data transmission position of the SL data.

15. The method according to claim 13, characterized in that, The method further includes: Send a timing advance command to the terminal device; Wherein, the timing advance command is used to instruct the second N TA .

16. The method according to any one of claims 9 to 15, characterized in that, The non-zero first timing advance and the non-zero first N corresponding to the SL data TAoffset Related.

17. A timing advance device, characterized in that, The device includes: a configuration module; The configuration module is used to receive target information cells sent by the network device. The target information cells are used by the terminal device to determine whether to configure a non-zero first timing advance for the side-link SL data. Based on the indication of the target information cell, a non-zero first timing advance is configured for the SL data.

18. The apparatus according to claim 17, characterized in that, The configuration module is used to configure a non-zero first timing advance for the SL data on the target frequency band; The target frequency band is a frequency band that allows the SL data and uplink UL data to coexist.

19. The apparatus according to claim 18, characterized in that, The configuration module is configured to configure a non-zero first timing advance for the SL data in the target frequency band based on a second timing advance for the UL data in the target frequency band.

20. The apparatus according to claim 19, characterized in that, The configuration module is used to determine the second timing advance measurement value N based on the target UL data corresponding to the target frequency band. TA With the second timing advance offset value N TAoffset The sum between the two values ​​determines the first timing advance corresponding to the SL data.

21. The apparatus according to claim 20, characterized in that, The target UL data includes: In the time domain corresponding to the target frequency band, the data transmission location is the UL data following the SL data; or, In the time domain corresponding to the target frequency band, the UL data originally planned to be transmitted is located at the data transmission position of the SL data.

22. The apparatus according to claim 20, characterized in that, The device further includes: a command receiving module; The command receiving module is used to receive the timing advance command sent by the network device; Wherein, the timing advance command is used to instruct the second N TA .

23. The apparatus according to any one of claims 17 to 22, characterized in that, The non-zero first timing advance and the non-zero first N corresponding to the SL data TAoffset Related.

24. The apparatus according to claim 17, characterized in that, The target information cell is carried in the following signaling: Radio Resource Control (RRC) signaling; or, Media Access Control (MAC) Cell CE; or, Random Access Response (RAR).

25. A timing advance device, characterized in that, The device includes: an indicator module; The indication module is used to send a target information element to the terminal device. The target information element is used by the terminal device to determine whether to configure a non-zero first timing advance for the side-link SL data.

26. The apparatus according to claim 25, characterized in that, The target information cell is carried in the following signaling: Radio Resource Control (RRC) signaling; or, Media Access Control (MAC) Cell CE; or, Random Access Response (RAR).

27. The apparatus according to claim 25, characterized in that, The terminal device configures a non-zero first timing advance for the SL data on the target frequency band, wherein the target frequency band is a frequency band that allows the SL data and uplink UL data to coexist.

28. The apparatus according to claim 27, characterized in that, The terminal device configures a non-zero first timing advance for the SL data in the target frequency band based on the second timing advance of the UL data in the target frequency band.

29. The apparatus according to claim 28, characterized in that, The terminal device is based on a second timing advance measurement value N corresponding to the target UL data on the target frequency band. TA With the second timing advance offset value N TAoffset The sum between the two values ​​determines the first timing advance corresponding to the SL data.

30. The apparatus according to claim 29, characterized in that, The target UL data includes: In the time domain corresponding to the target frequency band, the data transmission location is the UL data following the SL data; or, In the time domain corresponding to the target frequency band, the UL data originally planned to be transmitted is located at the data transmission position of the SL data.

31. The apparatus according to claim 30, characterized in that, The device further includes: a command sending module; The command sending module is used to send a timing advance command to the terminal device; Wherein, the timing advance command is used to instruct the second N TA .

32. The apparatus according to any one of claims 25 to 31, characterized in that, The non-zero first timing advance and the non-zero first N corresponding to the SL data TAoffset Related.

33. A terminal device, characterized in that, The terminal device includes: processor; A transceiver connected to the processor; Memory for storing the executable instructions of the processor; The processor is configured to load and execute the executable instructions to implement the timing advance method as described in any one of claims 1 to 8.

34. A network device, characterized in that, The network device includes: processor; A transceiver connected to the processor; Memory for storing the executable instructions of the processor; The processor is configured to load and execute the executable instructions to implement the timing advance method as described in any one of claims 9 to 16.

35. A chip, characterized in that, The chip includes programmable logic circuits and / or program instructions, which, when the chip is running, are used to implement the timing advance method as described in any one of claims 1 to 16.

36. A computer-readable storage medium, characterized in that, The readable storage medium stores executable instructions, which are loaded and executed by a processor to implement the timing advance method as described in any one of claims 1 to 16.

37. A computer program product, characterized in that, The computer program product includes computer instructions stored in a computer-readable storage medium, which a processor reads from and executes to implement the timing advance method as described in any one of claims 1 to 16.

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