Transmission method, apparatus, device, and readable storage medium

Abstract

The application discloses a transmission method, device, equipment and readable storage medium, and the method comprises the following steps: a terminal sends a plurality of first transmission signals to a control node through different first sending timings; or the terminal receives a plurality of second transmission signals from the control node through different receiving timings.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of communication, and particularly relates to a transmission method and device, equipment and a readable storage medium. BACKGROUND

[0002] After a signal amplifier is deployed in a network (or multiple distributed receiving antennas are configured in the network), there are more paths from a terminal (such as a user equipment (UE)) to a base station, and there is a large difference in time delay of signals transmitted from different paths (for example, if a signal passes through a signal amplifier, the signal time delay will be greatly increased), and this effect will cause inter-symbol interference. SUMMARY

[0003] Embodiments of the present application provide a transmission method, device, equipment and readable storage medium, which can solve the problem of inter-symbol interference caused by multipath effect.

[0004] In a first aspect, a transmission method is provided, comprising:

[0005] The terminal transmits multiple first transmission signals to the control node through different first sending timings, or the terminal receives multiple second transmission signals from the control node through different receiving timings.

[0006] In a second aspect, a transmission method is provided, comprising: the control node receives multiple first transmission signals transmitted by the terminal through different first sending timings, or the control node transmits second transmission signals to the terminal through different receiving timings.

[0007] In a third aspect, a transmission device applied to a terminal is provided, comprising:

[0008] The transmission module is configured to transmit multiple first transmission signals to the control node through different first sending timings, or receive multiple second transmission signals from the control node through different receiving timings.

[0009] In a fourth aspect, a transmission device applied to a control node is provided, comprising:

[0010] The transmission module is configured to receive multiple first transmission signals transmitted by the terminal through different first sending timings, or transmit second transmission signals to the terminal through different receiving timings.

[0011] In a fifth aspect, a communication device is provided, comprising a processor, a memory, and a program stored in the memory and executable on the processor, and when the program is executed by the processor, the steps of the method according to the first aspect or the second aspect are implemented.

[0012] In a sixth aspect, a communication device is provided, comprising a processor and a communication interface, wherein the processor is configured to perform the steps of the method according to the first aspect or the second aspect.

[0013] In a seventh aspect, a readable storage medium is provided, wherein the readable storage medium stores a program or instructions, and the program or instructions are configured to be executed by a processor to perform the steps of the method according to the first aspect or the second aspect.

[0014] In an eighth aspect, a computer program / program product is provided, wherein the computer program / program product is stored in a non-volatile storage medium, and the computer program / program product is configured to be executed by at least one processor to perform the steps of the method according to the first aspect or the second aspect.

[0015] In a ninth aspect, a chip is provided, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to run a program or instructions to perform the steps of the method according to the first aspect or the second aspect.

[0016] In the embodiments of the present application, the transmission on different transmission paths can adopt different sending timing or receiving timing, so as to overcome the situation that the multipath delay cannot be offset by the cyclic prefix, and thus the control node and the terminal can maintain multiple transmission paths at the same time, so as to improve the robustness of the transmission. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a network structure diagram comprising a signal amplifier;

[0018] Figure 2 is a schematic diagram of timing advance;

[0019] Figure 3 is a schematic diagram of an impulse response delay of a UE;

[0020] Figure 4 is a schematic diagram of a wireless communication system to which the embodiments of the present application can be applied;

[0021] Figure 5 is one of flowcharts of the transmission method provided by the embodiments of the present application;

[0022] Figure 6 is another one of flowcharts of the transmission method provided by the embodiments of the present application;

[0023] Figure 7 is one of schematic diagrams of downlink transmission provided by the embodiments of the present application;

[0024] Figure 8 is another one of schematic diagrams of downlink transmission provided by the embodiments of the present application;

[0025] Figure 9 is a schematic diagram of receiving conflict provided by an embodiment of the present application;

[0026] Figure 10 is a schematic diagram of UE sending SRS on different SRS resource sets using different TAs provided by an embodiment of the present application;

[0027] Figure 11 is a schematic diagram of setting Timer independently for each TA and invalidating the third segment of Timer after counting down provided by an embodiment of the present application;

[0028] Figure 12 is a schematic diagram of sharing one Timer for all TAs and invalidating the third segment of Timer after counting down provided by an embodiment of the present application;

[0029] Figure 13a and Figure 13b is a schematic diagram of determining TA provided by an embodiment of the present application;

[0030] Figure 14 is one of schematic diagrams of transmission apparatus provided by an embodiment of the present application;

[0031] Figure 15 is another schematic diagram of transmission apparatus provided by an embodiment of the present application;

[0032] Figure 16 is a schematic diagram of terminal in an embodiment of the present application;

[0033] Figure 17 is a schematic diagram of control node in an embodiment of the present application. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0035] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specified order or sequence. It should be understood that the terms used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second" are usually a category, not limited to the number of objects, for example, the first object can be one or more. In addition, "and" in the specification and claims means at least one of the connected objects, and the character " / " generally represents a "or" relationship between the objects before and after it.

[0036] It is worth noting that the technology described in the embodiments of the present application is not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used in the above-mentioned systems and radio technologies, as well as other systems and radio technologies. The following description describes a New Radio (NR) system for example purposes, and NR terminology is used in most of the following description, but these technologies can also be applied to applications other than NR system applications, such as 6th Generation (6G) communication systems. th

[0037] In order to facilitate understanding of the embodiments of the present application, the following technical points are first introduced:

[0038] I. Signal amplifier

[0039] The signal amplifier (or called intelligent signal amplifier) is used to expand the coverage of the cell, including receiving and amplifying the downlink signal from the upstream base station, so as to increase the signal strength reaching the terminal (such as User Equipment (UE)); amplifying the uplink signal from the UE, so as to increase the strength of the uplink signal from the UE to the upstream base station.

[0040] The signal amplifier can receive control from the upstream base station, that is, the base station can control the transmission parameters of the signal amplifier, such as the switch and transmission beam of the signal amplifier, so as to improve the working efficiency of the signal amplifier and reduce interference. For example, the base station can control the signal amplifier to transmit a signal beam to a certain direction, so as to increase the signal strength of the terminal in the direction. Figure 1 ​The network structure shown contains three network nodes, and the intermediate network node is a signal amplifier containing a terminal module (or referred to as a mobile termination (MT)) and a repeater unit (RU). The signal amplifier can only contain one of the MT or RU. The MT can establish a connection with an upstream base station. The base station interacts with the signal amplifier through the MT to control the signaling, and can instruct the MT / RU of the signal amplifier to transmit / receive related parameters.

[0041] II. Timing Advance (TA)

[0042] Referring to Figure 2 When the UE sends a signal to the base station, the transmission timing of the signal needs to be advanced by a certain time (TA time) relative to its reception timing, so that the transmitted signal arrives at the base station side after passing through the air interface delay, and is aligned with the uplink / downlink timing of the base station.

[0043] The UE timing advance is obtained by the steps specified in the protocol. After the UE performs downlink synchronization, it sends a physical random access channel (PRACH) according to the downlink timing. The base station preliminarily determines the timing advance of the UE according to the reception / measurement of the PRACH, and notifies the UE of the timing advance through the TA field in the random access response (RAR). In addition, the base station can also adjust the TA value through the media access control layer (MAC) control element (CE).

[0044] In addition, the UE can be equipped with multiple TA groups (TAGs), and one or more component carriers (CCs) can belong to a TAG. Each TAG contains a TA value. For a UE equipped with multiple CCs, multiple TA values can be supported, which belong to different CCs and can realize the transmission of the UE to the receiving antennas of the base station at different locations.

[0045] In addition, the TA of the UE can be out of synchronization. The base station configures a synchronization timer (timer) for the UE. After the timer is counted down, the UE determines that the uplink is out of synchronization. After the uplink is out of synchronization, the UE can send a PRACH to re-synchronize.

[0046] III. Cyclic prefix (CP)

[0047] Due to multipath effect, the time delay of signal transmission to the receiving end is different, which will cause inter-symbol interference. The CP technology can eliminate the inter-symbol interference by adding CP extension before the useful OFDM symbol according to the characteristic of OFDM symbol, so that the difference of multipath time delay is less than the CP length.

[0048] After the signal amplifier is deployed in the network (or multiple distributed receiving antennas are configured in the network), the time delay difference between the multiple paths will be large, and the CP length cannot offset the multipath time delay effect. The time delay diagram of the impulse response of the UE is shown in Figure 3 The signal amplifier path (repeater path in the figure) is the path after the signal passes through the signal amplifier, and the other paths are the paths without passing through the signal amplifier. The repeater path cannot be covered by the CP length, so the inter-symbol interference will be caused between the repeater path and the other paths.

[0049] Referring to Figure 4 , a schematic diagram of a wireless communication system to which the embodiments of the present application can be applied is shown. The wireless communication system includes a terminal 41, a signal amplifier 42 and a network side device 43. The terminal 41 can also be referred to as a terminal device or a user terminal (User Equipment, UE), and the terminal 41 can be a terminal side device such as a mobile phone, a Tablet Personal Computer, a Laptop Computer, a Personal Digital Assistant (PDA), a palm computer, a netbook, an ultra-mobile personal computer (UMPC), a Mobile Internet Device (MID), a wearable device or a vehicle-mounted device (VUE), a pedestrian terminal (PUE), etc. The wearable device includes a smart watch, a bracelet, a headset, glasses, etc. It should be noted that the specific type of the terminal 41 is not limited in the embodiments of the present application.

[0050] The network-side device 43 can be a base station or a core network, wherein the base station can be referred to as a Node B, an evolved Node B, an access point, a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a Node B, an evolved Node B (gNB), a home Node B, a home evolved Node B, a WLAN access point, a WiFi node, a transmitting receiving point (TRP), a wireless access network node, or some other appropriate terminology in the art as long as the same technical effects are achieved, and the base station is not limited to the specified technical terms. It should be noted that in the embodiments of the present application, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.

[0051] Referring to Figure 5 The embodiments of the present application provide a transmission method, and the specific steps include step 501.

[0052] Step 501: The terminal sends multiple first transmission signals to the control node through different first sending timings; or the terminal receives multiple second transmission signals from the control node through different receiving timings.

[0053] For example, the uplink transmission path between the terminal and the control node includes path 1 and path 2, wherein the transmission on path 1 corresponds to sending timing #1, and the transmission on path 2 corresponds to sending timing #2. The terminal sends the first transmission signal to the control node through sending timing #1 and sending timing #2 respectively. Since the transmissions on path 1 and path 2 use different sending timings, the situation that the multipath delay cannot be offset by the cyclic prefix can be overcome, so that multiple transmission paths between the control node and the terminal can be maintained at the same time, so as to improve the robustness of transmission.

[0054] Optionally, the different first sending timings correspond to transmissions on different paths between the terminal and the control node. For example, the uplink transmission path between the terminal and the control node includes a first path and a second path, and the different first sending timings correspond to transmissions on the first path and the second path respectively.

[0055] For example, the paths of the downlink transmission between the terminal and the control node include path 3 and path 4, the transmission on the path 3 corresponds to the receiving timing #3, the transmission on the path 4 corresponds to the receiving timing #4, the terminal receives the second transmission signal from the control node through the receiving timing #3 and the receiving timing #4 respectively, and since the transmissions on the path 3 and the path 4 adopt different receiving timings, the situation that the multipath delay cannot be offset by the cyclic prefix can be overcome, so that multiple transmission paths between the control node and the terminal can be maintained at the same time, thereby improving the robustness of the transmission.

[0056] Optionally, the different receiving timings correspond to the transmissions on different paths between the terminal and the control node, for example, the paths of the downlink transmission between the terminal and the control node include a third path and a fourth path, and the different receiving timings correspond to the transmissions on the third path and the fourth path respectively.

[0057] In an embodiment of the present application, the method further comprises: the terminal obtaining a plurality of receiving timings or a plurality of sending timings.

[0058] In an embodiment of the present application, the step of the terminal obtaining a plurality of receiving timings comprises:

[0059] The terminal obtains a plurality of receiving timings according to a downlink reference signal.

[0060] In an embodiment of the present application, the method further comprises: the terminal sending the related information of the receiving timing to the control node.

[0061] In an embodiment of the present application, the related information of the receiving timing is associated with a downlink beam.

[0062] In an embodiment of the present application, the related information of the receiving timing includes a timing difference of different receiving timings.

[0063] In an embodiment of the present application, the method further comprises:

[0064] The terminal determines the receiving timing corresponding to a specific downlink transmission through blind detection of a plurality of receiving timings, or the terminal receives a first signaling, and determines the receiving timing corresponding to the specific downlink transmission according to the first signaling, the first signaling indicating a downlink beam, and the receiving timing having a preset corresponding relationship with the downlink beam.

[0065] In an embodiment of the present application, the method further comprises:

[0066] The terminal determines a reference timing.

[0067] The terminal receives second signaling, and the second signaling carries a plurality of sending timings;

[0068] The terminal selects a second sending timing from the plurality of sending timings;

[0069] The terminal performs initial uplink transmission according to the second sending timing and / or the reference timing.

[0070] In an embodiment of the present application, the reference timing remains unchanged within a set time period.

[0071] In an embodiment of the present application, the second sending timing is any one of the plurality of sending timings carried in the second signaling, or the second sending timing is a specific sending timing of the plurality of sending timings carried in the second signaling, or the second sending timing is a first sending timing of the plurality of sending timings carried in the second signaling.

[0072] In an embodiment of the present application, the method further comprises:

[0073] The terminal receives third signaling;

[0074] The terminal adjusts one or more of the first sending timings according to the third signaling.

[0075] In an embodiment of the present application, the third signaling is used to uniformly adjust all the first sending timings, or the third signaling is used to respectively adjust the corresponding first sending timings.

[0076] In an embodiment of the present application, the method further comprises:

[0077] The terminal sends a Sounding Reference Signal (SRS) according to a preset sending timing, and the control node blindly detects the SRS in a specific uplink beam direction using different receiving timings to determine a sending timing associated with the specific uplink beam.

[0078] In an embodiment of the present application, the preset sending timing is configured by the control node.

[0079] In an embodiment of the present application, the method further comprises:

[0080] The terminal sends a SRS on an uplink beam according to different preset sending timings, and the control node detects the SRS using a specific receiving timing to determine an uplink beam associated with the specific sending timing.

[0081] In an embodiment of the present application, the terminal transmits SRS on an uplink beam according to different preset transmission timings, comprising:

[0082] The terminal transmits SRS on the SRS resources with the same number in different SRS resource sets according to different preset transmission timings.

[0083] In an embodiment of the present application, the preset transmission timing of the terminal transmitting SRS on each SRS resource set is configured by the control node. In an embodiment of the present application, the method further comprises:

[0084] The terminal receives fourth signaling;

[0085] The terminal determines the first transmission timing corresponding to a specific uplink transmission according to the fourth signaling, wherein the fourth signaling indicates the first transmission timing corresponding to the specific uplink transmission, or the fourth signaling indicates an uplink beam, and the first transmission timing has a preset corresponding relationship with the uplink beam.

[0086] Or,

[0087] The terminal determines the first transmission timing corresponding to SRS according to the fourth signaling, wherein the fourth signaling indicates the first transmission timing corresponding to the SRS, or the fourth signaling indicates an uplink beam of SRS, and the first transmission timing has a preset corresponding relationship with the uplink beam.

[0088] In an embodiment of the present application, a timer is independently set for each first transmission timing, and the timer is used to determine uplink out-of-sync.

[0089] In an embodiment of the present application, the method further comprises:

[0090] The terminal determines uplink out-of-sync when the timers corresponding to all the first transmission timings are counting down; or the terminal determines uplink out-of-sync when the timer corresponding to any first transmission timing is counting down; or the terminal determines uplink out-of-sync when the number of the first transmission timings whose timers are counting down reaches a preset number.

[0091] In an embodiment of the present application, the first transmission timing whose timer is counting down is invalid.

[0092] In an embodiment of the present application, all the first transmission timings share one timer, and the timer is used to determine uplink out-of-sync.

[0093] In an embodiment of the present application, the method further comprises:

[0094] If the terminal does not receive a fifth signaling indicating all the first transmission timings before the timer expires, the terminal determines that the uplink is out of synchronization;

[0095] or,

[0096] If the terminal does not receive a sixth signaling indicating part of the first transmission timings before the timer expires, the terminal determines that the uplink is out of synchronization;

[0097] or,

[0098] If the terminal does not receive a seventh signaling indicating a third transmission timing before the timer expires, and the number of the third transmission timings reaches a preset number, the terminal determines that the uplink is out of synchronization.

[0099] In an embodiment of the present application, the method further comprises:

[0100] The terminal receives an eighth signaling from the control node, the eighth signaling indicating a fourth transmission timing;

[0101] The terminal determines the first transmission timing of the multiple uplink transmissions according to the fourth transmission timing and the timing difference between different reception timings.

[0102] In an embodiment of the present application, the method further comprises:

[0103] The terminal determines the timing difference between other downlink reception timings and a reference timing by taking the reference timing as the reference timing.

[0104] In an embodiment of the present application, the transmission timing of the multiple uplink transmissions comprises one or more of:

[0105] The fourth transmission timing indicated by the control node;

[0106] The sum of the fourth transmission timing indicated by the control node and the timing difference.

[0107] In an embodiment of the present application, the method further comprises:

[0108] When the terminal determines the transmission timing of the second uplink path according to the reception timing of the first downlink path, the transmission timing of the second uplink path is the average of the fifth transmission timing and the sixth transmission timing;

[0109] or,

[0110] When the terminal determines the transmission timing of the first uplink path according to the reception timing of the second downlink path, the transmission timing of the first uplink path is the average of the fifth transmission timing and the sixth transmission timing.

[0111] The fifth sending timing is a sending timing of the first uplink path determined by taking the receiving timing of the first downlink path as a reference timing, and the sixth sending timing is a sending timing of the second uplink path determined by taking the receiving timing of the second downlink path as a reference timing.

[0112] In an embodiment of the present application, the method further comprises:

[0113] The terminal sends capability information of the terminal to the control node.

[0114] The capability information comprises one or more of the following:

[0115] Whether the terminal can maintain multiple sending timings;

[0116] Whether the terminal can maintain multiple receiving timings;

[0117] Whether the terminal can simultaneously use multiple sending timings for sending;

[0118] Whether the terminal can simultaneously use multiple receiving timings for receiving;

[0119] Whether the terminal can use multiple sending timings for sending in time division mode;

[0120] Whether the terminal can use multiple receiving timings for receiving in time division mode.

[0121] In an embodiment of the present application, the terminal uses different first sending timings to send multiple first transmission signals to the control node through a signal amplifier.

[0122] Or,

[0123] The terminal uses different receiving timings to receive multiple second transmission signals from the control node through a signal amplifier.

[0124] In the embodiments of the present application, the transmission on different transmission paths can use different sending timings or receiving timings, which overcomes the situation that the multipath delay cannot be offset by the cyclic prefix, so that multiple transmission paths can be simultaneously maintained between the control node and the terminal, so as to improve the robustness of the transmission.

[0125] Referring to Figure 6 , the embodiments of the present application provide a transmission method, and the specific steps comprise: step 601.

[0126] Step 601: The control node receives multiple first transmission signals sent by the terminal through different first sending timings; or the control node sends second transmission signals to the terminal through different receiving timings.

[0127] For example, the uplink transmission path between the terminal and the control node includes path 1 and path 2, wherein the transmission on path 1 corresponds to sending timing #1, the transmission on path 2 corresponds to sending timing #2, the control node receives the first transmission signal sent by the terminal through sending timing #1 and sending timing #2 respectively, and since the transmissions on path 1 and path 2 use different sending timings, the situation that the multipath delay cannot be offset by the cyclic prefix can be overcome, so that multiple transmission paths between the control node and the terminal can be maintained at the same time, so as to improve the robustness of the transmission.

[0128] For another example, the downlink transmission path between the terminal and the control node includes path 3 and path 4, wherein the transmission on path 3 corresponds to receiving timing #3, the transmission on path 4 corresponds to receiving timing #4, the control node sends the second transmission signal to the terminal through receiving timing #3 and receiving timing #4 respectively, and since the transmissions on path 3 and path 4 use different receiving timings, the situation that the multipath delay cannot be offset by the cyclic prefix can be overcome, so that multiple transmission paths between the control node and the terminal can be maintained at the same time, so as to improve the robustness of the transmission.

[0129] In an embodiment of the present application, the method further comprises: the control node receiving the related information of the receiving timing.

[0130] In an embodiment of the present application, the related information of the receiving timing is associated with a downlink beam.

[0131] In an embodiment of the present application, the related information of the receiving timing includes: the timing difference of different receiving timings.

[0132] In an embodiment of the present application, the method further comprises:

[0133] The control node sends first signaling, and the first signaling indicates a downlink beam, and the receiving timing has a preset corresponding relationship with the downlink beam.

[0134] In an embodiment of the present application, the method further comprises:

[0135] The control node sends third signaling, and the third signaling is used to uniformly adjust all first sending timings, or the third signaling is used to adjust the first sending timings respectively.

[0136] In an embodiment of the present application, the method further comprises:

[0137] The control node sends fourth signaling.

[0138] The fourth signaling indicates a first sending timing corresponding to a specific uplink transmission, or the fourth signaling indicates an uplink beam, and the first sending timing has a preset correspondence with the uplink beam.

[0139] Alternatively, the fourth signaling indicates a first sending timing corresponding to SRS, or the fourth signaling indicates an uplink beam of SRS, and the first sending timing has a preset correspondence with the uplink beam.

[0140] In an embodiment of the present application, the method further comprises:

[0141] The control node receives capability information from the terminal;

[0142] The capability information includes one or more of the following:

[0143] Whether the terminal can maintain multiple sending timings;

[0144] Whether the terminal can maintain multiple receiving timings;

[0145] Whether the terminal can simultaneously use multiple sending timings for sending;

[0146] Whether the terminal can simultaneously use multiple receiving timings for receiving;

[0147] Whether the terminal can use multiple sending timings for sending in time division mode;

[0148] Whether the terminal can use multiple receiving timings for receiving in time division mode.

[0149] In an embodiment of the present application, the method further comprises:

[0150] The control node determines a first sending timing associated with an uplink beam.

[0151] In an embodiment of the present application, the step of determining, by the control node, a first sending timing associated with an uplink beam, comprises:

[0152] The control node blindly detects a channel sounding reference signal in a specific uplink beam direction through different receiving timings;

[0153] The control node determines a first sending timing associated with the specific uplink beam according to the blind detection result;

[0154] Alternatively,

[0155] The control node detects a channel sounding reference signal according to a specific receiving timing, and the channel sounding reference signal is sent by the terminal on a first uplink beam through a specific first sending timing;

[0156] The control node determines a first sending timing associated with the first uplink beam according to the detection result.

[0157] In the embodiments of the present application, the transmission on different transmission paths can adopt different sending timings or receiving timings, overcoming the situation that the multipath delay cannot be offset by the cyclic prefix, so that multiple transmission paths between the control node and the terminal can be maintained at the same time, in order to improve the robustness of transmission.

[0158] The embodiments of the present application will be described below in combination with Embodiment One, Embodiment Two and Embodiment Three.

[0159] Embodiment One: Downlink synchronization

[0160] In the embodiments of the present application, multiple sets of timings can be set, and different paths of transmission adopt different timings, in order to overcome the situation that the multipath delay cannot be offset by the CP. Especially for signal transmission on the FR2 frequency, the transmission of different paths corresponds to the transmission of different beam directions, and multiple transmission paths between the base station and the terminal can be maintained at the same time, in order to improve the robustness of transmission.

[0161] Referring to Figure 7 and Figure 8 , two transmission paths between the control node and the terminal can be maintained at the same time, transmission path 1 is control node-signal amplifier-terminal, and the terminal receives the signal on transmission path 1 through receiving timing #1; transmission path 2 is control node-reflector-terminal, and the terminal receives the signal on transmission path 2 through receiving timing #2.

[0162] (1) Downlink receiving timing acquisition

[0163] The UE determines the downlink receiving timing by using the traditional synchronization process, but the UE can maintain / use multiple downlink receiving timings (for example, multiple TAs are included for each CC / each TAG) according to the strength of the downlink reference signal. For example, one or more time instants with higher demodulation correlation peaks of the downlink secondary synchronization signal (SSS) / primary synchronization signal (PSS) are used as the reference time instants of the downlink receiving timing.

[0164] (2) Downlink receiving timing reporting

[0165] In the embodiments of the present application, the UE can maintain / use multiple downlink receiving timings, and the UE reports the related information of the multiple downlink receiving timings.

[0166] Optionally, the information related to multiple downlink receive timings reported by the UE can reflect the timing differences between the multiple downlink receive timings, in order to assist the control node in scheduling. That is, the control node avoids resource collisions caused by the UE using different downlink receive timings when receiving different transmissions.

[0167] See Figure 9 When the terminal receives time slot 1 and time slot 2, the different offsets of the downlink reception timing relative to the downlink transmission timing of the control node cause reception conflicts between slot 1 and slot 2.

[0168] Optionally, when the UE reports the downlink beam of the control node, it also carries information related to multiple downlink reception timings in the direction of that downlink beam.

[0169] (3) Downlink transmission

[0170] When a UE maintains multiple downlink receive timings simultaneously, the determination method for the downlink receive timing corresponding to a certain downlink transmission (e.g., Physical Downlink Shared Channel (PDSCH) / Physical Downlink Control Channel (PDCCH)) includes one of the following:

[0171] a. UE blindly checks multiple downlink reception timings;

[0172] b. There is a correspondence between the downlink reception timing information and the downlink beam. The configuration / scheduling / activation signaling indicating the downlink beam also means indicating the timing corresponding to the downlink reception.

[0173] Example 2: Uplink Synchronization

[0174] In this embodiment of the application, the multipath problem is solved by setting multiple sets of transmission timing (or timing advance (TA)). Different TAs are used for transmission on different paths to overcome the situation where multipath delay cannot be canceled by CP.

[0175] (1) Initial TA

[0176] Step 1: The UE determines the reference timing based on downlink synchronization and sends PRACH according to the reference timing.

[0177] Optionally, the reference timing is one of the UE downlink receive timings.

[0178] Optionally, the reference timing cannot be changed within a set time period. For example, the reference timing cannot be changed before uplink synchronization is determined to have failed.

[0179] Step 2: The control node detects the PRACH, determines the TA value (the TA value can be multiple values, each CC / each TAG includes multiple TAs), and notifies the UE of the TA value.

[0180] Optionally, a RAR (i.e., an enhanced RAR) can carry multiple TA values.

[0181] Optionally, signaling other than RAR (e.g., via Downlink Control Information (DCI) / Medium Access Control (MAC) Control Element (CE) / Radio Resource Control (RRC) etc.) can notify multiple TA values ​​(traditional RAR only carries one TA value).

[0182] Step 3: When the UE initiates uplink transmission (e.g., message 3 (MSG3) or message B (MSGB)), it transmits according to the reference timing and / or the TA notified by RAR.

[0183] Optionally, if the RAR notifies multiple TAs, the UE selects one TA for the initial uplink transmission.

[0184] (a) Choose any TA;

[0185] (b) Specific TA, such as minimum TA / maximum TA, etc.;

[0186] (c) The first TA in the RAR signaling, etc.

[0187] (2) TA adjustment.

[0188] Closed-loop adjustment of one or more of the aforementioned TAs. For example, the adjustment value of the TA is indicated by MAC CE, and the adjustment value of the TA is adjusted in one of the following ways:

[0189] (a) Adjust all TAs uniformly (applicable to mobile repeaters)

[0190] (b) Adjust the TAs individually. For example, one adjustment value corresponds to one or more TA values.

[0191] Optionally, a relationship exists between the adjustment value and the TA, explicitly or implicitly associating the adjustment value with the corresponding TA. For example, an index is set for the TA, and the adjustment signaling indicates the index of the TA corresponding to the adjustment value.

[0192] (3) Beam transmission training

[0193] Transmit beam training determines the transmit beam and its associated transmit timing (TA).

[0194] Option 1: The UE transmits SRS according to a preset TA, and the control node uses different receive timings to blindly detect SRS in a certain transmit beam direction in order to determine the TA value associated with the uplink beam.

[0195] For example, 1) the control node configures the SRS resource set; 2) it is assumed that the UE uses different transmission beams to transmit SRS on different SRS resources; 3) it is stipulated that the UE uses the same preset TA to transmit SRS on the SRS resource set.

[0196] Optionally, the preset TA is controlled by the control node (e.g., the preset TA indicated when configuring the SRS resource set).

[0197] Option 2: The UE uses different preset TAs to transmit SRS in a certain transmission beam direction. The control node detects SRS according to a certain reception timing in order to determine the TA associated with the transmission beam.

[0198] For example, see Figure 10 1) The control node is configured with multiple SRS resource sets; 2) Assume that the UE uses different transmission beams to transmit SRS on different SRS resources in one SRS resource set, and the SRS beam direction is repeated on resources with the same SRS resource number in different SRS resource sets; 3) The UE uses different preset TA to transmit SRS on different SRS resource sets.

[0199] Optionally, the control node demodulates multiple SRS resource sets and determines the TA corresponding to each SRS transmission resource (or beam direction).

[0200] Optionally, the TA transmitted by the UE on each SRS resource set is controlled by the control node.

[0201] For example, the TA indicated when configuring the SRS resource set; setting an index for multiple TAs, and there is a mapping relationship between the index of the TA and the index of the SRS resource set.

[0202] Optionally, after the control node determines the transmit beam and its associated transmit timing (TA), it notifies the UE of the association.

[0203] (4) Uplink transmission

[0204] When a UE maintains multiple TAs simultaneously, the TA corresponding to a certain uplink transmission (e.g., Physical Uplink Shared Channel (PUSCH) / Physical Uplink Control Channel (PUCCH)) can be determined in one of the following ways:

[0205] a. Configuration signaling (e.g., configuration signaling for configured grant (CG) type 1 / 2) / scheduling signaling (e.g., scheduling signaling for dynamic grant (DG)) / activation signaling (e.g., activation signaling for CG type 2) directly instructs the transmission of the corresponding TA;

[0206] b. There is a corresponding relationship between TA and uplink beam. The configuration / scheduling / activation signaling indicating the uplink beam also means indicating the transmission timing corresponding to the uplink transmission.

[0207] Optionally, the above method is applicable to uplink receive beam training. That is, SRS transmissions on the SRS resource set for uplink receive beam training.

[0208] (5) Receiving beam training (the training method can be referred to the transmitting beam training)

[0209] When a UE maintains multiple TAs simultaneously, for receive beam training, the TAs transmitted by the SRS can be determined in one of the following ways:

[0210] a. Configuration / Scheduling / Activation directly instructs the SRS to send the corresponding TA.

[0211] b. There is a correspondence between the TA and the receiving beam. The configuration / scheduling / activation signaling indicating the receiving beam also means indicating the corresponding transmission timing of the SRS.

[0212] (6) Upward step loss judgment

[0213] Option 1: Each TA has an independent timer for determining the timer. After the TA is updated, the corresponding timer is reset.

[0214] Option 1-1: All Timers corresponding to TAs count down. If the uplink fails to synchronize, a PRACH transmission can be triggered.

[0215] Option 1-2: If the Timer corresponding to any TA counts down and the uplink fails to synchronize, a PRACH transmission can be triggered.

[0216] Option 1-3: When the TA value of the Timer countdown reaches the preset number, the uplink will lose synchronization, which can trigger the PRACH transmission.

[0217] Optionally, the TA value for the Timer countdown can be an invalid TA.

[0218] like Figure 11 As shown, if the TA is not updated after the third Timer expires, then the TA will become invalid after the third Timer countdown ends.

[0219] Option 2: All TA values ​​share a single timer, which is reset after the timer expires.

[0220] Option 2-1: Before the Timer countdown, if the UE does not have a corresponding Timing indication signaling for all TAs, the uplink will be out of sync, which can trigger the PRACH transmission.

[0221] Option 2-2: Before the Timer countdown, if there is one or more TAs and the UE does not have a corresponding Timing indication signaling, the uplink will lose synchronization, which can trigger the PRACH transmission.

[0222] Option 2-3: Before the Timer countdown, if there are one or more TAs, and the UE does not have a corresponding Timing indication signaling, and the number of the one or more TAs reaches a preset number, the uplink will lose synchronization, which can trigger PRACH transmission.

[0223] Optionally, TAs that are not updated after the Timer countdown are considered invalid. For example... Figure 12 As shown, if the TA is not updated before the third Timer countdown, then the TA will become invalid after the third Timer countdown.

[0224] Example 3: Uplink Synchronization

[0225] The UE determines multiple uplink transmission TA values ​​based on the TA indicated by the control node and the timing difference between multiple DL reception timings.

[0226] Optionally, the UE uses a certain DL reception timing as a reference to calculate the timing difference between other reception timings and the reference timing, wherein the number of timing differences depends on the number of other reception timings.

[0227] Optionally, the UE may ultimately determine multiple TAs, including one or more of the following:

[0228] (a)TA1: The TA indicated by the control node;

[0229] (b)TA2: The sum of the TA indicated by the control node and one of the timing differences;

[0230] (c)TA3: The sum of the TA indicated by the control node and another of the differences;

[0231] (d) And so on for all TA values, namely TA4, ...,TAn.

[0232] Optionally, the UE performs TA (e.g., reference timing) based on one of the reception timings.

[0233] Example 4: Uplink Synchronization

[0234] See Figure 13a and Figure 13b The UE uses the DL reception timing of DL path #m as a reference timing to determine the TA of UL path #a as TA_m-a; the UE uses the DL reception timing of DL path #n as a reference timing to determine the TA of UL path #b as TA_n-b.

[0235] When the UE determines the TA of UL path #b based on the DL receive timing of DL path #m, TA_m-b=(TA_m-a+TA_n-b) / 2.

[0236] In the same way, TA_n-a=(TA_m-a+TA_n-b) / 2.

[0237] In the above embodiments, the ability of the UE to maintain multiple transmit / receive timings simultaneously can be reported to the control node as a capability of the UE.

[0238] In the above embodiments, whether the UE can use multiple timings simultaneously for receiving / transmitting, or whether the UE can use multiple timings in a time-sharing manner for receiving / transmitting (using one timing at the same time), can be reported to the control node as the UE's capability.

[0239] The control node uses paths (or beams) corresponding to different timings for spatial multiplexing scheduling, or performs path (or beam) switching when paths (or beams) corresponding to certain timings are blocked.

[0240] See Figure 14 This application provides a transmission device for use in a terminal. The device 1400 includes:

[0241] The transmission module 1401 is used to send multiple first transmission signals to the control node at different first transmission timings; or to receive multiple second transmission signals from the control node at different reception timings.

[0242] In one embodiment of this application, the transmission module 1401 is further configured to: acquire multiple receive timings or multiple transmit timings.

[0243] In one embodiment of this application, the transmission module 1401 is further configured to: the terminal acquire multiple reception timings based on the downlink reference signal.

[0244] In one embodiment of this application, the transmission module 1401 is further configured to: send relevant information about the receiving timing to the control node.

[0245] In one embodiment of this application, the information related to the receiving timing is associated with the downlink beam.

[0246] In one embodiment of this application, the relevant information of the receiving timing includes: the timing difference between different receiving timings.

[0247] In one embodiment of this application, the device 1400 further includes:

[0248] The first determining module is used to determine the receiving timing corresponding to a specific downlink transmission by blindly detecting multiple receiving timings; or, the terminal receives a first signaling; the terminal determines the receiving timing corresponding to a specific downlink transmission according to the first signaling, wherein the first signaling indicates a downlink beam, and the receiving timing and the downlink beam have a preset correspondence.

[0249] In one embodiment of this application, the device 1400 further includes:

[0250] The second determining module is used to determine the reference timing;

[0251] The receiving module is used to receive a second signaling message, which carries multiple transmission timings.

[0252] The selection module is used to select a second transmission timing from the plurality of transmission timings;

[0253] The processing module is used to perform an initial uplink transmission according to the second transmission timing and / or the reference timing.

[0254] In one embodiment of this application, the reference timing remains constant within a set time period.

[0255] In one embodiment of this application, the second transmission timing is any one of the plurality of transmission timings carried in the second signaling, or the second transmission timing is a specific transmission timing among the plurality of transmission timings carried in the second signaling, or the second transmission timing is the first transmission timing among the plurality of transmission timings carried in the second signaling.

[0256] In one embodiment of this application, the device 1400 further includes:

[0257] The receiving module is used to receive third-party signaling.

[0258] The adjustment module is used to adjust one or more of the first transmission timings according to the third signaling.

[0259] In one embodiment of this application, the third signaling is used to uniformly adjust all the first transmission timings, or the third signaling is used to adjust the corresponding first transmission timings respectively.

[0260] In one embodiment of this application, the device 1400 further includes:

[0261] The transmitting module is used to transmit SRS according to a preset transmission timing. The control node uses different reception timings to blindly detect the SRS in a specific uplink beam direction in order to determine the transmission timing associated with the specific uplink beam.

[0262] In one embodiment of this application, the preset transmission timing is configured by the control node.

[0263] In one embodiment of this application, the device 1400 further includes:

[0264] The transmitting module is used to transmit SRS on an uplink beam according to different preset transmission timings. The control node uses a specific receive timing to detect the channel sounding reference signal in order to determine the uplink beam associated with the specific transmission timing.

[0265] In one embodiment of this application, the sending module is further configured to: send SRS on the same numbered SRS resource in different SRS resource sets using different preset sending times.

[0266] In one embodiment of this application, the preset transmission timing for the terminal to transmit SRS on each SRS resource set is configured by the control node. In another embodiment of this application, the device 1400 further includes:

[0267] The receiving module is used to receive the fourth signaling.

[0268] The determining module is configured to determine, according to the fourth signaling, a first transmission timing corresponding to a specific uplink transmission, wherein the fourth signaling indicates the first transmission timing corresponding to the specific uplink transmission, or the fourth signaling indicates an uplink beam, and the first transmission timing and the uplink beam have a preset correspondence; or, according to the fourth signaling, determine a first transmission timing corresponding to an SRS, wherein the fourth signaling indicates the first transmission timing corresponding to the SRS, or the fourth signaling indicates an uplink beam of the SRS, and the first transmission timing and the uplink beam have a preset correspondence.

[0269] In one embodiment of this application, each of the first transmission timings is independently configured with a timer, and the timer is used to determine uplink synchronization failure.

[0270] In one embodiment of this application, the device 1400 further includes:

[0271] The judgment module is used to determine uplink synchronization failure when all the timers corresponding to the first transmission timer countdown are in progress; or, when any of the timers corresponding to the first transmission timer countdown are in progress; or, when the number of first transmission timers counting down reaches a preset number.

[0272] In one embodiment of this application, the first transmission timing of the timer countdown is invalid.

[0273] In one embodiment of this application, all first transmission timings share a single timer, which is used to determine uplink synchronization failure.

[0274] In one embodiment of this application, the device 1400 further includes:

[0275] The judgment module is configured to determine uplink synchronization failure if the terminal does not receive a fifth signaling before the timer counts down, wherein the fifth signaling is used to indicate all first transmission timings; or, determine uplink synchronization failure if the terminal does not receive a sixth signaling before the timer counts down, wherein the sixth signaling is used to indicate a portion of the first transmission timings; or, determine uplink synchronization failure if the terminal does not receive a seventh signaling indicating a third transmission timing before the timer counts down, and the number of third transmission timings reaches a preset number.

[0276] In one embodiment of this application, the device 1400 further includes:

[0277] The receiving module is configured to receive an eighth signaling message from the control node, the eighth signaling message indicating the fourth transmission timing;

[0278] The terminal determines the first transmission timing for multiple uplink transmissions based on the timing difference between the fourth transmission timing and different reception timings.

[0279] In one embodiment of this application, the device 1400 further includes:

[0280] The determination module is used to determine the timing difference between other downlink reception timings and the reference timing, using a specific reception timing as a reference timing.

[0281] In one embodiment of this application, the transmission timing of the plurality of uplink transmissions includes one or more of the following:

[0282] The fourth transmission timing indicated by the control node;

[0283] The sum of the fourth transmission timing indicated by the control node and the timing difference.

[0284] In one embodiment of this application, the device 1400 further includes:

[0285] The determination module is used to determine the transmission timing of the second uplink path as the average of the fifth transmission timing and the sixth transmission timing when the terminal determines the transmission timing of the second uplink path based on the reception timing of the first downlink path.

[0286] or,

[0287] When the terminal determines the transmission timing of the first uplink path based on the reception timing of the second downlink path, the transmission timing of the first uplink path is determined to be the average of the fifth transmission timing and the sixth transmission timing.

[0288] The fifth transmission timing is determined by using the reception timing of the first downlink path as a reference timing for the transmission timing of the first uplink path, and the sixth transmission timing is determined by using the reception timing of the second downlink path as a reference timing for the transmission timing of the second uplink path.

[0289] In one embodiment of this application, the device 1400 further includes:

[0290] The sending module is used to send the terminal's capability information to the control node;

[0291] The capability information includes one or more of the following:

[0292] Whether the terminal can maintain multiple transmission timings;

[0293] Whether the terminal can maintain multiple receiving timers;

[0294] Whether the terminal can use multiple transmission timers to transmit simultaneously;

[0295] Whether the terminal can simultaneously use multiple receiving timers to receive;

[0296] Whether the terminal can use multiple sending timers to send data in a time-sharing manner;

[0297] Whether the terminal can use multiple receiving timers in a time-sharing manner.

[0298] In one embodiment of this application, the terminal sends multiple first transmission signals to the control node through a signal amplifier using different first transmission timings; or, the terminal receives multiple second transmission signals from the control node through a signal amplifier using different reception timings.

[0299] The apparatus provided in this application embodiment can achieve... Figure 5 The various processes implemented in the method embodiments shown achieve the same technical effects, and will not be described again here to avoid repetition.

[0300] See Figure 15 This application provides a transmission device applied to a control node. The device 1500 includes:

[0301] The transmission module 1501 is used to receive multiple first transmission signals sent by the terminal through different first transmission timings; or to send second transmission signals to the terminal through different reception timings.

[0302] In one embodiment of this application, the transmission module 1501 is further configured to: receive information related to the reception timing.

[0303] In one embodiment of this application, the information related to the receiving timing is associated with the downlink beam.

[0304] In one embodiment of this application, the relevant information of the receiving timing includes: the timing difference between different receiving timings.

[0305] In one embodiment of this application, the device 1500 further includes:

[0306] The transmitting module is used to transmit a first signaling, the first signaling indicating a downlink beam, and the receiving timing has a preset correspondence with the downlink beam.

[0307] In one embodiment of this application, the device 1500 further includes:

[0308] The transmitting module is used to transmit a third signaling, which is used to uniformly adjust all first transmitting timings, or the third signaling is used to adjust the first transmitting timings individually.

[0309] In one embodiment of this application, the device 1500 further includes:

[0310] The sending module is used to send the fourth signaling.

[0311] Wherein, the fourth signaling indicates a first transmission timing corresponding to a specific uplink transmission, or the fourth signaling indicates an uplink beam, wherein the first transmission timing and the uplink beam have a preset correspondence; or, the fourth signaling indicates a first transmission timing corresponding to an SRS, or the fourth signaling indicates an uplink beam of an SRS, wherein the first transmission timing and the uplink beam have a preset correspondence.

[0312] In one embodiment of this application, the device 1500 further includes:

[0313] A receiving module is configured to receive capability information from the terminal;

[0314] The capability information includes one or more of the following:

[0315] Whether the terminal can maintain multiple transmission timings;

[0316] Whether the terminal can maintain multiple receiving timers;

[0317] Whether the terminal can use multiple transmission timers to transmit simultaneously;

[0318] Whether the terminal can simultaneously use multiple receiving timers to receive;

[0319] Whether the terminal can use multiple sending timers to send data in a time-sharing manner;

[0320] Whether the terminal can use multiple receiving timers in a time-sharing manner.

[0321] In one embodiment of this application, the device 1500 further includes:

[0322] Determine the module for the first transmission timing of uplink beam association.

[0323] In one embodiment of this application, the determining module is further configured to: blindly detect a channel sounding reference signal for a specific uplink beam direction using different receive timings; determine a first transmission timing associated with the specific uplink beam based on the blind detection result; or, detect a channel sounding reference signal based on a specific receive timing, wherein the channel sounding reference signal is transmitted by the terminal on a first uplink beam using a specific first transmission timing; and determine a first transmission timing associated with the first uplink beam based on the detection result.

[0324] The apparatus provided in this application embodiment can achieve... Figure 6 The various processes implemented in the method embodiments shown achieve the same technical effects, and will not be described again here to avoid repetition.

[0325] This application also provides a terminal, including a processor and a communication interface. The communication interface is used to send multiple first transmission signals to a control node at different first transmission timings; or to receive multiple second transmission signals from the control node at different reception timings. This terminal embodiment corresponds to the above-described terminal-side method embodiment. All implementation processes and methods of the above method embodiments can be applied to this terminal embodiment and achieve the same technical effects.

[0326] Specifically, Figure 16To realize the hardware structure diagram of a terminal according to an embodiment of this application, the terminal 1600 includes, but is not limited to, at least some of the following components: radio frequency unit 1601, network module 1602, audio output unit 1603, input unit 1604, sensor 1605, display unit 1606, user input unit 1607, interface unit 1608, memory 1609, and processor 1610.

[0327] Those skilled in the art will understand that the terminal 1600 may also include a power supply (such as a battery) for supplying power to various components. The power supply may be logically connected to the processor 1610 through a power management system, thereby enabling functions such as managing charging, discharging, and power consumption through the power management system. Figure 16 The terminal structure shown does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0328] It should be understood that, in this embodiment, the input unit 1604 may include a graphics processing unit (GPU) 16041 and a microphone 16042. The GPU 16041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 1606 may include a display panel 16061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 1607 includes a touch panel 16071 and other input devices 16072. The touch panel 16071 is also called a touch screen. The touch panel 16071 may include a touch detection device and a touch controller. Other input devices 16072 may include, but are not limited to, a physical keyboard, function keys (such as volume control buttons, power buttons, etc.), a trackball, a mouse, and a joystick, which will not be described in detail here.

[0329] In this embodiment, the radio frequency unit 1601 receives downlink data from the network-side device and processes it for the processor 1610; additionally, it sends uplink data to the network-side device. Typically, the radio frequency unit 1601 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, etc.

[0330] The memory 1609 can be used to store software programs or instructions and various data. The memory 1609 may primarily include a program or instruction storage area and a data storage area. The program or instruction storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 1609 may include high-speed random access memory and non-volatile memory, which may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. For example, at least one disk storage device, flash memory device, or other non-volatile solid-state storage device.

[0331] Processor 1610 may include one or more processing units; optionally, processor 1610 may integrate an application processor and a modem processor, wherein the application processor mainly handles the operating system, user interface, and applications or instructions, and the modem processor mainly handles wireless communication, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 1610.

[0332] The terminal provided in this application embodiment can achieve... Figure 5 The various processes implemented in the method embodiments shown achieve the same technical effects, and will not be described again here to avoid repetition.

[0333] This application also provides a network-side device, including a processor and a communication interface. The communication interface is used to receive multiple first transmission signals sent by a terminal at different first transmission timings; or to send second transmission signals to the terminal at different reception timings. This network-side device embodiment corresponds to the above-described network-side device method embodiment. All implementation processes and methods of the above method embodiments can be applied to this network-side device embodiment and achieve the same technical effects.

[0334] Specifically, embodiments of this application also provide a control node. For example... Figure 17As shown, the network-side device 1700 includes: an antenna 1701, a radio frequency (RF) device 1702, and a baseband device 1703. The antenna 1701 is connected to the RF device 1702. In the uplink direction, the RF device 1702 receives information through the antenna 1701 and transmits the received information to the baseband device 1703 for processing. In the downlink direction, the baseband device 1703 processes the information to be transmitted and sends it to the RF device 1702. The RF device 1702 processes the received information and transmits it through the antenna 1701.

[0335] The aforementioned frequency band processing device can be located in the baseband device 1703. The method executed by the network-side device in the above embodiments can be implemented in the baseband device 1703, which includes a processor 1704 and a memory 1705.

[0336] The baseband device 1703 may, for example, include at least one baseband board on which multiple chips are disposed, such as... Figure 17 As shown, one of the chips, for example, is a processor 1704, which is connected to a memory 1705 to call the program in the memory 1705 and execute the network device operation shown in the above method embodiment.

[0337] The baseband device 1703 may also include a network interface 1706 for exchanging information with the radio frequency device 1702, such as a common public radio interface (CPRI).

[0338] Specifically, the network-side device in this application embodiment further includes: instructions or programs stored in memory 1705 and executable on processor 1704. It is understood that processor 1704 invokes the instructions or programs in memory 1705 to execute... Figure 15 The methods executed by each module shown achieve the same technical effect, and to avoid repetition, they will not be described in detail here.

[0339] This application also provides a computer program / program product, which is stored in a non-volatile storage medium and executed by at least one processor to implement the following: Figure 5 or Figure 6 The steps of the processing method described above.

[0340] This application embodiment also provides a readable storage medium storing a program or instructions that, when executed by a processor, implement the above-described functionality. Figure 5 or Figure 6 The various processes of the method embodiments shown can achieve the same technical effect, and will not be described again here to avoid repetition.

[0341] The processor mentioned above is the processor in the terminal described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.

[0342] This application embodiment also provides a chip, the chip including a processor and a communication interface, the communication interface being coupled to the processor, the processor being used to run programs or instructions to implement the above. Figure 5 or Figure 6 The various processes of the method embodiments shown can achieve the same technical effect, and will not be described again here to avoid repetition.

[0343] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0344] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0345] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a computer software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0346] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A transmission method, characterized in that, include: The terminal sends multiple first transmission signals to the control node at different first transmission timings, the different first transmission timings corresponding to transmissions on different paths between the terminal and the control node; The method further includes: The terminal transmits SRS to the control node on the same numbered SRS resource in different SRS resource sets using different preset transmission timings on the first uplink beam. The control node is used to detect the SRS using a specific reception timing to determine the first transmission timing associated with the first uplink beam.

2. The method according to claim 1, characterized in that, The method further includes: The terminal acquires multiple receive timings or multiple send timings.

3. The method according to claim 2, characterized in that, The steps for the terminal to acquire multiple reception timings include: The terminal acquires multiple reception timings based on the downlink reference signal.

4. The method according to claim 2, characterized in that, The method further includes: The terminal sends relevant information about the receiving timing to the control node.

5. The method according to claim 4, characterized in that, The information related to the receiving timing is associated with the downlink beam.

6. The method according to claim 4, characterized in that, The relevant information regarding the receiving timing includes: the timing difference between different receiving timings.

7. The method according to claim 1, characterized in that, The method further includes: The terminal determines the receiving timing corresponding to a specific downlink transmission by blindly detecting multiple receiving timings. or, The terminal receives the first signaling; The terminal determines the reception timing corresponding to a specific downlink transmission based on the first signaling, the first signaling indicating the downlink beam, and the reception timing having a preset correspondence with the downlink beam.

8. The method according to claim 1, characterized in that, The method further includes: The terminal determines a reference timing; The terminal receives a second signaling message, which carries multiple transmission timings; The terminal selects a second transmission timing from the plurality of transmission timings; The terminal performs an initial uplink transmission according to the second transmission timing and / or the reference timing.

9. The method according to claim 8, characterized in that, The reference timing remains unchanged within a set time period.

10. The method according to claim 8, characterized in that, The second transmission timing is any one of the multiple transmission timings carried in the second signaling, or the second transmission timing is a specific transmission timing among the multiple transmission timings carried in the second signaling, or the second transmission timing is the first transmission timing among the multiple transmission timings carried in the second signaling.

11. The method according to claim 1, characterized in that, The method further includes: The terminal receives a third signaling message; The terminal adjusts one or more of the first transmission timings according to the third signaling.

12. The method according to claim 11, characterized in that, The third signaling is used to uniformly adjust all the first transmission timings, or the third signaling is used to adjust the corresponding first transmission timings respectively.

13. The method according to claim 1, characterized in that, The preset transmission timing is configured by the control node.

14. The method according to claim 1, characterized in that, The preset transmission timing for the terminal to send SRS on each SRS resource set is configured by the control node.

15. The method according to claim 1, characterized in that, The method further includes: The terminal receives the fourth signaling; The terminal determines a first transmission timing corresponding to a specific uplink transmission according to the fourth signaling. The fourth signaling indicates the first transmission timing corresponding to the specific uplink transmission, or the fourth signaling indicates an uplink beam. The first transmission timing and the uplink beam have a preset correspondence. or, The terminal determines the first transmission timing corresponding to the SRS according to the fourth signaling. The fourth signaling indicates the first transmission timing corresponding to the SRS, or the fourth signaling indicates the uplink beam of the SRS. The first transmission timing and the uplink beam have a preset correspondence.

16. The method according to claim 1, characterized in that, Each of the first transmission timings has an independently set timer, which is used to determine uplink synchronization failure.

17. The method according to claim 16, characterized in that, The method further includes: If the timer corresponding to all the first transmission timings counts down, the terminal determines that the uplink has lost synchronization; or, If the timer corresponding to any of the first transmission timings counts down, the terminal determines that the uplink has lost synchronization; or, If the number of times the first transmission timer reaches a preset number during the timer countdown, the terminal determines that the uplink has lost synchronization.

18. The method according to claim 17, characterized in that, The first transmission timing of the timer countdown is invalid.

19. The method according to claim 1, characterized in that, All first transmissions share a single timer, which is used to determine uplink synchronization failure.

20. The method according to claim 19, characterized in that, The method further includes: If the terminal does not receive the fifth signaling before the timer counts down, the terminal determines that the uplink has lost synchronization. The fifth signaling is used to indicate all first transmission timings. or, If the terminal does not receive the sixth signaling before the timer counts down, the terminal determines that the uplink has lost synchronization. The sixth signaling is used to indicate part of the first transmission timing. or, If the terminal does not receive the seventh signaling indicating the third transmission timing before the timer counts down, and the number of the third transmission timings reaches a preset number, the terminal determines that the uplink has lost synchronization.

21. The method according to claim 1 or 2, characterized in that, The method further includes: The terminal receives an eighth signaling message from the control node, the eighth signaling message indicating the fourth transmission timing; The terminal determines the first transmission timing for multiple uplink transmissions based on the timing difference between the fourth transmission timing and different reception timings.

22. The method according to claim 21, characterized in that, The method further includes: The terminal uses a specific receiving timing as a reference timing to determine the timing difference between other downlink receiving timings and the reference timing.

23. The method according to claim 21, characterized in that, The transmission timing of the multiple uplink transmissions includes one or more of the following: The fourth transmission timing indicated by the control node; The sum of the fourth transmission timing indicated by the control node and the timing difference.

24. The method according to claim 1, characterized in that, The method further includes: When the terminal determines the transmission timing of the second uplink path based on the reception timing of the first downlink path, the transmission timing of the second uplink path is determined to be the average of the fifth transmission timing and the sixth transmission timing. or, When the terminal determines the transmission timing of the first uplink path based on the reception timing of the second downlink path, the transmission timing of the first uplink path is determined to be the average of the fifth transmission timing and the sixth transmission timing. The fifth transmission timing is determined by using the reception timing of the first downlink path as a reference timing for the transmission timing of the first uplink path, and the sixth transmission timing is determined by using the reception timing of the second downlink path as a reference timing for the transmission timing of the second uplink path.

25. The method according to claim 1, characterized in that, The method further includes: The terminal sends its capability information to the control node; The capability information includes one or more of the following: Whether the terminal can maintain multiple transmission timings; Whether the terminal can maintain multiple receiving timers; Whether the terminal can use multiple transmission timers to transmit simultaneously; Whether the terminal can simultaneously use multiple receiving timers to receive; Whether the terminal can use multiple sending timers to send data in a time-sharing manner; Whether the terminal can use multiple receiving timers in a time-sharing manner.

26. The method according to claim 1, characterized in that, The terminal sends multiple first transmission signals to the control node through a signal amplifier at different first transmission timings. or, The terminal uses different receiving timings to receive multiple second transmission signals from the control node through a signal amplifier.

27. A transmission method, characterized in that, include: The control node receives multiple first transmission signals sent by the terminal at different first transmission times, the different first transmission times corresponding to transmissions on different paths between the terminal and the control node; The method further includes: The control node detects the channel probe reference signal according to a specific reception timing. The channel probe reference signal is transmitted by the terminal on the first uplink beam at different preset transmission timings on the same numbered SRS resource in different SRS resource sets. The control node determines the first transmission timing associated with the first uplink beam based on the detection results.

28. The method according to claim 27, characterized in that, The method further includes: The control node receives timing-related information.

29. The method according to claim 28, characterized in that, The information related to the receiving timing is associated with the downlink beam.

30. The method according to claim 28, characterized in that, The relevant information regarding the receiving timing includes: the timing difference between different receiving timings.

31. The method according to claim 27, characterized in that, The method further includes: The control node sends a first signaling instruction, which indicates a downlink beam, and the reception timing has a preset correspondence with the downlink beam.

32. The method according to claim 27, characterized in that, The method further includes: The control node sends a third signaling message, which is used to uniformly adjust all first transmission timings, or the third signaling message is used to adjust the first transmission timings individually.

33. The method according to claim 27, characterized in that, The method further includes: The control node sends a fourth signaling message; Wherein, the fourth signaling indicates a first transmission timing corresponding to a specific uplink transmission, or the fourth signaling indicates an uplink beam, and the first transmission timing and the uplink beam have a preset correspondence; Alternatively, the fourth signaling indicates the first transmission timing corresponding to the SRS, or the fourth signaling indicates the uplink beam of the SRS, wherein the first transmission timing and the uplink beam have a preset correspondence.

34. The method according to claim 27, characterized in that, The method further includes: The control node receives capability information from the terminal; The capability information includes one or more of the following: Whether the terminal can maintain multiple transmission timings; Whether the terminal can maintain multiple receiving timers; Whether the terminal can use multiple transmission timers to transmit simultaneously; Whether the terminal can simultaneously use multiple receiving timers to receive; Whether the terminal can use multiple sending timers to send data in a time-sharing manner; Whether the terminal can use multiple receiving timers in a time-sharing manner.

35. A transmission device, characterized in that, include: The transmission module is used to send multiple first transmission signals to the control node at different first transmission timings, wherein the different first transmission timings correspond to transmissions on different paths between the terminal and the control node; The device further includes: The transmitting module is used to transmit SRS to the control node on the first uplink beam using different preset transmission timings on the same SRS resource with the same number in different SRS resource sets. The control node is used to detect the SRS using a specific reception timing to determine the first transmission timing associated with the first uplink beam.

36. A transmission device, characterized in that, include: The transmission module is used to receive multiple first transmission signals sent by the terminal at different first transmission times, wherein the different first transmission times correspond to transmissions on different paths between the terminal and the control node; The device further includes: The determination module is used to detect a channel sounding reference signal according to a specific reception timing. The channel sounding reference signal is transmitted by the terminal on a first uplink beam using different preset transmission timings on the same numbered SRS resource in different SRS resource sets. Based on the detection result, the first transmission timing associated with the first uplink beam is determined.

37. A communication device, characterized in that, include: A processor, a memory, and a program stored in the memory and executable on the processor, wherein the program, when executed by the processor, implements the steps of the method as claimed in any one of claims 1 to 34.

38. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a processor, implement the steps of the method as described in any one of claims 1 to 34.

Images