Repeat transmission method, apparatus, system, device and medium

Abstract

The present disclosure provides a repeated transmission method, device, system, equipment and medium, relating to the technical field of wireless communication. The method comprises: a network device sends a plurality of synchronization signal blocks (SSBs); an SSB- RSRP threshold is configured for each SSB; a terminal device selects an SSB, and determines whether to perform first channel repeated transmission according to the selected SSB and the SSB- RSRP threshold corresponding to the SSB. The present disclosure can improve the uplink coverage performance and avoid resource waste.

Description

Technical Field

[0001] This disclosure relates to the field of wireless communication technology, and in particular to a method for repeated transmission, a device for repeated transmission, a communication system, an electronic device, and a computer-readable storage medium. Background Technology

[0002] As the number of mobile devices connected to wireless networks continues to increase and the demand for mobile data traffic continues to grow, system requirements and architectures are being modified to meet these rapidly growing needs. For example, wireless communication networks such as 5G New Radio (NR) systems and 4G Long Term Evolution (LTE) systems, and even later versions, may need to expand their communication range or coverage.

[0003] In related technologies, the terminal determines whether to use repeated transmission and the number of repetitions when sending signals to the Physical Random Access Channel (PRACH) based on the Synchronization Signal / PBCH Block Reference Signal Received Power (SSB-RSRP) threshold configured by the base station. For the FR2 band, such as millimeter wave, the base station improves coverage by sending multiple SSBs. However, using a single SSB-RSRP threshold can easily cause the terminal to be unable to use coverage enhancement technologies properly, resulting in wasted resources.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0005] This disclosure provides a method, apparatus, system, device, and medium for repeated transmission, which at least to some extent overcomes the problem in related technologies that using a single SSB-RSRP threshold can easily cause terminals to be unable to use coverage enhancement technology normally, resulting in wasted resources.

[0006] Other features and advantages of this disclosure will become apparent from the following detailed description, or may be learned in part from practice of this disclosure.

[0007] According to one aspect of this disclosure, a retransmission method is provided, applied to a network device, comprising: transmitting a plurality of synchronization signal blocks (SSBs); configuring a synchronization signal block reference signal received power (SSB-RSRP) threshold for each SSB, so that a terminal device determines whether to perform a first channel retransmission based on the selected SSB and the SSB-RSRP threshold corresponding to the SSB.

[0008] In one embodiment of this disclosure, configuring SSB-RSRP thresholds for each SSB includes configuring one or more SSB-RSRP thresholds for each SSB.

[0009] In one embodiment of this disclosure, configuring SSB-RSRP thresholds for each SSB includes: dividing the SSBs into multiple groups and configuring one or more SSB-RSRP thresholds for each SSB group, wherein an SSB in an SSB group corresponds to one or more SSB-RSRP thresholds.

[0010] In one embodiment of this disclosure, the first channel includes a Physical Random Access Channel (PRACH) or a Physical Uplink Shared Channel (PUSCH) for message 3 Msg3.

[0011] According to another aspect of this disclosure, a retransmission method is also provided, applied to a terminal device, comprising: selecting an SSB, wherein the SSB is one of a plurality of SSBs sent by a network device, and the SSB-RSRP threshold corresponding to each SSB is configured by the network device; and determining whether to perform a first channel retransmission based on the selected SSB and the SSB-RSRP threshold corresponding to the SSB.

[0012] In one embodiment of this disclosure, determining whether to perform a first channel retransmission based on the selected SSB and the SSB-RSRP threshold corresponding to the SSB includes: performing a measurement on the selected SSB to obtain a current RSRP value; if the current RSRP value is greater than or equal to an SSB-RSRP threshold corresponding to the SSB, or if the current RSRP value is greater than or equal to an SSB-RSRP threshold of the SSB group to which the SSB belongs, then determining that the terminal device performs a first channel retransmission.

[0013] In one embodiment of this disclosure, the method further includes: determining the number of times the first channel is repeatedly transmitted based on the SSB-RSRP threshold corresponding to the SSB.

[0014] In one embodiment of this disclosure, the method further includes: if the current RSRP value is less than the minimum value of the SSB-RSRP threshold corresponding to the SSB, or if the current RSRP value is less than the minimum value of the SSB-RSRP threshold of the SSB group to which the SSB belongs, then the terminal device performs a single transmission on the first channel.

[0015] In one embodiment of this disclosure, the first channel includes PRACH or Msg3PUSCH.

[0016] According to another aspect of this disclosure, a retransmission apparatus is provided for use in a network device, comprising: a beam transmission module for transmitting multiple SSBs; and a threshold configuration module for configuring an SSB-RSRP threshold for each SSB, so that a terminal device determines whether to perform a first channel retransmission based on the selected SSB and the SSB-RSRP threshold corresponding to the SSB.

[0017] According to another aspect of this disclosure, a retransmission apparatus is provided, applied to a terminal device, comprising: an SSB selection module for selecting an SSB, wherein the SSB is one of a plurality of SSBs sent by a network device, and the SSB-RSRP corresponding to each SSB is configured by the network device; and a retransmission determination module for determining whether to perform a first channel retransmission based on the selected SSB and the SSB-RSRP threshold corresponding to the SSB.

[0018] According to another aspect of this disclosure, a communication system is provided, including a network device and a terminal device. The network device is configured to transmit a plurality of SSBs and configure an SSB-RSRP threshold for each SSB. The terminal device is configured to select an SSB, wherein the SSB is one of the plurality of SSBs transmitted by the network device, and the SSB-RSRP corresponding to each SSB is configured by the network device. The terminal device is configured to determine whether to perform a first channel retransmission based on the selected SSB and the SSB-RSRP threshold corresponding to the SSB.

[0019] According to another aspect of this disclosure, an electronic device is provided, comprising: a processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to perform the above-described repetitive transmission method by executing the executable instructions.

[0020] According to another aspect of this disclosure, a computer-readable storage medium is provided having a computer program stored thereon, which, when executed by a processor, implements the above-described repetitive transmission method.

[0021] In this embodiment, the network device transmits multiple SSBs; an SSB-RSRP threshold is configured for each SSB; and the terminal device determines whether to perform repeated transmission on the first channel based on the selected SSB and its corresponding SSB-RSRP threshold. This network device can flexibly configure the SSB-RSRP threshold according to the number of SSBs, thereby enabling the terminal device to determine whether to perform repeated transmission on the first channel based on the randomly selected SSB and its corresponding SSB-RSRP threshold, improving uplink coverage performance and avoiding resource waste.

[0022] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0023] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0024] Figure 1 This diagram illustrates a communication system architecture provided by an embodiment of the present disclosure.

[0025] Figure 2 This illustration shows a flowchart of a repetitive transmission method for network devices provided by an embodiment of the present disclosure.

[0026] Figure 3 This illustration shows a flowchart of another repetitive transmission method for network devices provided by an embodiment of the present disclosure.

[0027] Figure 4 This illustration shows a flowchart of another repetitive transmission method for network devices provided by an embodiment of the present disclosure.

[0028] Figure 5 This illustration shows a flowchart of a repetitive transmission method for a terminal device provided by an embodiment of the present disclosure.

[0029] Figure 6 This illustration shows a flowchart of another repetitive transmission method for terminal devices provided by an embodiment of the present disclosure.

[0030] Figure 7 This illustration shows a flowchart of another repetitive transmission method for terminal devices provided by an embodiment of the present disclosure.

[0031] Figure 8 This illustration shows a flowchart of another repetitive transmission method applied to a terminal device provided by an embodiment of the present disclosure.

[0032] Figure 9 This illustration shows a schematic diagram of a retransmission device applied to a network device according to an embodiment of the present disclosure.

[0033] Figure 10 This illustration shows a schematic diagram of a repetitive transmission device applied to a terminal device according to an embodiment of the present disclosure.

[0034] Figure 11 A structural block diagram of an electronic device according to an embodiment of the present disclosure is shown. Detailed Implementation

[0035] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, they are provided so that this disclosure will be more comprehensive and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0036] Furthermore, the accompanying drawings are merely illustrative of this disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted. Some block diagrams shown in the drawings are functional entities and do not necessarily correspond to physically or logically independent entities. These functional entities may be implemented in software, in one or more hardware modules or integrated circuits, or in different network and / or processor devices and / or microcontroller devices.

[0037] Figure 1 A schematic diagram of an exemplary system architecture that can be applied to the retransmission method or retransmission apparatus of the present disclosure is shown.

[0038] like Figure 1 As shown, the system architecture 100 may include terminal device 101, network device 102, and network 103.

[0039] Network 103 is a medium used to provide a communication link between terminal device 101 and network device 102, and may be a wireless network.

[0040] Optionally, the aforementioned wireless network uses standard communication technologies and / or protocols. The network is typically the Internet, but can also be any network, including but not limited to any combination of Local Area Network (LAN), Metropolitan Area Network (MAN), Wide Area Network (WAN), mobile, wireless network, private network, or Virtual Private Network. In some embodiments, technologies and / or formats including Hyper Text Markup Language (HTML), Extensible Markup Language (XML), etc., are used to represent data exchanged over the network. Furthermore, conventional encryption technologies such as Secure Socket Layer (SSL), Transport Layer Security (TLS), Virtual Private Network (VPN), and Internet Protocol Security (IPsec) can be used to encrypt all or some links. In other embodiments, customized and / or dedicated data communication technologies can be used to replace or supplement the aforementioned data communication technologies.

[0041] Terminal device 101, also known as a terminal (User Equipment, UE), user terminal, user equipment, etc., can be various electronic devices, including but not limited to smartphones, tablets, laptops, desktop computers, wearable devices, augmented reality devices, virtual reality devices, in-vehicle devices, pedestrian terminals, smart home devices (home appliances with wireless communication functions, such as refrigerators, televisions, washing machines, or furniture, etc.). Wearable devices include smartwatches, smart bracelets, smart headphones, smart glasses, smart jewelry, smart wristwatches, smart clothing, game consoles, etc. It should be noted that the embodiments disclosed in this disclosure do not limit the type of terminal device 101.

[0042] Optionally, the applications installed on different terminal devices 101 may be the same, or the same type of application may be installed on different operating systems on different terminal devices 101. Depending on the terminal platform, the specific form of the terminal device 101 for the application may also be different; for example, the application client may be a mobile terminal, a PC terminal, etc.

[0043] Network device 102 can be a base station or a core network. The base station can be referred to as a Node B, evolved Node B (eNB), 5G base station (gNB), or a later version of a base station, Radio Network Controller (RNC), Node B (NB), Base Station Controller (BSC), Base Transceiver Station (BTS), Home base station (e.g., Home evolved Node B, or Home Node B, HNB), Base Band Unit (BBU), Wireless Fidelity (WIFI) Access Point (AP), Transmission and Receiver Point (TRP or Transmission Point, TP), or other terms in the field, as long as the same technical effect is achieved. The base station is not limited to specific technical terms. It should be noted that this disclosure embodiment only uses a base station in an NR system as an example, but does not limit the specific type of base station.

[0044] Network device 102 can be a 4G base station, a 5G base station, a higher version of a base station, or a base station in other communication systems, or referred to as a Node B, an evolved Node B, a Transmission Reception Point (TRP), an Access Point (AP), a WiFi device, or other terms in the field, as long as the same technical effect is achieved, network device is not limited to specific technical terms.

[0045] Those skilled in the art will know that Figure 1 The number of terminal devices, networks, and network devices shown in this disclosure is merely illustrative; any number of terminal devices, networks, and network devices can be included depending on actual needs. This disclosure does not limit the scope of the embodiments.

[0046] In the 3rd Generation Partnership Project (3GPP) Rel-17NR coverage enhancement, retransmission is one of the solutions to improve the coverage of Message 3 (Msg3) Physical Uplink Shared Channel (PUSCH). Terminal devices determine whether to use retransmission to send Msg3 PUSCH by using a single SSB-RSRP threshold configured by network equipment (such as base stations).

[0047] In 3GPP Rel-18 NR coverage enhancement, retransmission is one of the solutions to improve PRACH coverage. Terminal devices determine whether to use retransmission and the number of retransmissions to send PRACH based on a single SSB-RSRP threshold configured by network equipment (e.g., base stations).

[0048] For Frequency Range 2 (FR2 band), which includes millimeter-wave frequencies between 24.25 GHz and 52.6 GHz, base stations enhance coverage by transmitting multiple Service Blocks (SSBs). Each SSB can cover different areas, such as horizontal or vertical coverage, indoor or outdoor coverage. If all SSBs use a single SSB-RSRP threshold, the following two problems may occur:

[0049] 1) Terminal device 101 needs to improve coverage performance through coverage enhancement technology, such as repeated transmission, but the single SSB-RSRP threshold causes the terminal device to fail to meet the requirements and cannot use coverage enhancement technology;

[0050] 2) Terminal device 101 has not yet entered a coverage-limited scenario, but the single SSB-RSRP threshold causes terminal device 101 to use coverage enhancement technology, resulting in a waste of resources.

[0051] To address the aforementioned issues, the retransmission method disclosed herein involves a network device transmitting multiple Service Blocks (SSBs); configuring an SSB-RSRP threshold for each SSB; and a terminal device determining whether to perform retransmission on the first channel based on the selected SSB and its corresponding SSB-RSRP threshold. This network device allows for flexible configuration of the SSB-RSRP threshold according to the number of SSBs, enabling the terminal device to determine whether to perform retransmission on the first channel based on the randomly selected SSB and its corresponding SSB-RSRP threshold, thereby improving uplink coverage performance and avoiding resource waste.

[0052] The following detailed description of this exemplary implementation method is provided in conjunction with the accompanying drawings and embodiments.

[0053] First, this disclosure provides a method for repeated transmission, which can be executed by any electronic device with computing capabilities. In one feasible implementation, the process corresponding to this method can be executed by a network device; in another feasible implementation, the process corresponding to this method can be executed by a terminal device; in other feasible implementations, the process corresponding to this method can be executed interactively by a network device and a terminal device.

[0054] Figure 2 This diagram illustrates a flowchart of a repetitive transmission method applied to a network device, according to an embodiment of this disclosure. Figure 2 As shown in the embodiments of this disclosure, the repeated transmission method is applied to a network device and includes the following steps:

[0055] S202, Send multiple synchronization signal blocks (SSBs).

[0056] In NR, SSB is the foundation for cell search.

[0057] In S202, each SSB can cover different areas, such as horizontal or vertical coverage, indoor or outdoor coverage. Multiple SSBs can improve coverage capabilities.

[0058] Different SSBs can use different beams for transmission, and the coverage area of ​​an SSB can be determined by adjusting the shape of the beam, the pointing angle of the beam, etc.

[0059] S204. Configure a synchronization signal block reference signal received power (SSB-RSRP) threshold for each SSB, so that the terminal device can determine whether to perform repeated transmission of the first channel based on the selected SSB and the SSB-RSRP threshold corresponding to the SSB.

[0060] In one embodiment, the network device may broadcast configuration information for the coverage enhancement mode to the terminal device to indicate that the network device supports the coverage enhancement mode. For example, the SSB-RSRP threshold configured for each SSB may be notified to the terminal device via system broadcast information.

[0061] After receiving multiple SSBs sent by the network device, the terminal device selects an SSB and determines whether to perform repeated transmission on the first channel based on the selected SSB and the corresponding SSB-RSRP threshold.

[0062] For example, the terminal device performs a measurement on the selected SSB to obtain the current RSRP value, and determines whether to perform repeated transmission on the first channel based on the current RSRP value and the SSB-RSRP threshold corresponding to the SSB.

[0063] In one embodiment, the first channel may include a Physical Random Access Channel (PRACH) or a Mg3 PUSCH.

[0064] PRACH is the access channel when a terminal device initiates a call. After receiving the Fast Physical Access Channel (FPACH) response message, the terminal device sends a Radio Resource Control (RRC) Connection Request message on PRACH according to the information indicated by the base station to establish an RRC connection.

[0065] In the contention-based random access process, also known as the 4-step Random Access Channel (RACH), the terminal device first sends Msg1, containing the preamble, to the network device. After detecting the preamble, the network device sends Msg2, containing the Random Access Response (RAR) message corresponding to the preamble. Upon receiving Msg2, the terminal device sends Msg3 according to the instructions of the RAR. After receiving Msg3, the network device sends Msg4, containing the contention resolution ID. Upon receiving Msg4, the terminal device completes the 4-step random access process.

[0066] If contention resolution fails, a new RACH is selected, resources are sent, a PRACH is sent, and another random access attempt is made.

[0067] In this embodiment, the network device transmits multiple SSBs; an SSB-RSRP threshold is configured for each SSB; and the terminal device determines whether to perform repeated transmission on the first channel based on the selected SSB and its corresponding SSB-RSRP threshold. This network device can flexibly configure the SSB-RSRP threshold according to the number of SSBs, thereby enabling the terminal device to determine whether to perform repeated transmission on the first channel based on the randomly selected SSB and its corresponding SSB-RSRP threshold, improving uplink coverage performance and avoiding resource waste.

[0068] Figure 3 This illustration shows a flowchart of another repetitive transmission method applied to a network device, provided by an embodiment of this disclosure. Figure 2 Based on the embodiment, S204 is further defined as S2042, as a way to define the SSB-RSRP threshold. For example... Figure 3 As shown, the repeated transmission method provided in this embodiment includes S202 and S2042. Specifically, the method includes:

[0069] S2042. Configure one or more SSB-RSRP thresholds for each SSB.

[0070] It should be noted that the specific implementation of S202 in this embodiment is the same as that in the previous embodiment, and will not be repeated here.

[0071] In one embodiment, the network device configures one or more SSB-RSRP thresholds for each SSB, and the SSB-RSRP thresholds serve as the basis for the terminal device to determine whether to perform repeated transmission on the first channel.

[0072] For example, when a network device configures an SSB-RSRP threshold for an SSB, the SSB-RSRP threshold divides the range of the terminal device's reference signal received power into two intervals. This allows the terminal device to determine whether to perform a first-channel retransmission based on the interval in which the measured current RSRP value falls. For instance, the terminal device performs a measurement based on the selected SSB and obtains the corresponding current RSRP value. If the current RSRP value is less than the aforementioned SSB-RSRP threshold, then no first-channel retransmission is required, or a single first-channel transmission is performed. If the current RSRP value is greater than or equal to the aforementioned SSB-RSRP threshold, then it is determined that a first-channel retransmission is necessary.

[0073] For example, when a network device configures multiple SSB-RSRP thresholds for each SSB, the multiple SSB-RSRP thresholds are different. The multiple SSB-RSRP thresholds divide the RSRP value range of the terminal device into at least three intervals, so that the terminal device can determine whether to perform repeated transmission on the first channel based on the interval in which the measured current RSRP value is located.

[0074] For example, a network device configures three SSB-RSRP thresholds for an SSB: a first SSB-RSRP threshold A1, a second SSB-RSRP threshold A2, and a third SSB-RSRP threshold A3, where A1 is less than A2, and A2 is less than A3. This divides the RSRP value range of the terminal device into four intervals: (0, A1), [A1, A2), [A2, A3), [A3, A4], [A5, A6], [A1, A2], [A2, A3], ... max ), where A max This is the maximum received power of the reference signal.

[0075] When the terminal device selects the above SSB and performs the measurement, if the current RSRP value is in (0, A1), it is determined that there is no need to perform repeated transmission on the first channel; if the current RSRP value is in one of the other three intervals, it is determined that repeated transmission on the first channel is required.

[0076] It should be noted that when a network device configures multiple SSB-RSRP thresholds for each SSB, the number of SSB-RSRP thresholds configured for different SSBs can be the same or different; correspondingly, the specific values ​​of the multiple SSB-RSRP thresholds configured for different SSBs can be the same or different, and this disclosure does not impose specific limitations.

[0077] In this embodiment of the disclosure, by configuring one or more SSB-RSRP thresholds for each SSB, it is ensured that terminal devices with coverage enhancement technology requirements can be used normally, avoiding resource waste caused by using coverage enhancement technology when the terminal device has not entered a coverage-limited scenario, thereby improving uplink coverage performance.

[0078] Figure 4 This illustration shows a flowchart of another repetitive transmission method applied to a network device, provided by an embodiment of this disclosure. Figure 2 Based on the embodiment, S204 is further defined as S2044 to define another way of the SSB-RSRP threshold. For example... Figure 4 As shown, the repeated transmission method provided in this embodiment includes S202 and S2044. Specifically, the method includes:

[0079] S2044. Divide the SSB into multiple groups and configure one or more SSB-RSRP thresholds for each SSB group. Among them, the SSB in an SSB group corresponds to one or more SSB-RSRP thresholds.

[0080] It should be noted that the specific implementation of S202 in this embodiment is the same as that in the previous embodiment, and will not be repeated here.

[0081] In one embodiment, multiple SSBs can be grouped according to their type. SSB types can be categorized as either vertical or horizontal coverage, or as either indoor or outdoor coverage.

[0082] SSB groups can be identified by group identifiers. Different SSB groups have different group identifiers. The group identifier can serve as the unique identifier of an SSB group. The group identifier can be represented by text, numbers, symbols, etc., and this disclosure does not impose any specific limitations.

[0083] In one embodiment, the number of SSBs in different SSB groups can be the same or different.

[0084] All SSBs within each SSB group are configured with one or more SSB-RSRP thresholds, meaning that all SSBs belonging to the same SSB group share one or more SSB-RSRP thresholds configured for that SSB group by the network device.

[0085] For example, when multiple SSBs are divided into SSB groups, and a network device configures an SSB-RSRP threshold for each SSB group, the SSB-RSRP threshold divides the RSRP value range into two intervals. This allows the terminal device to select an SSB from that SSB group and determine whether to perform a first-channel retransmission based on the interval of the measured current RSRP value. For instance, the terminal device performs a measurement based on the selected SSB, obtains the corresponding current RSRP value, determines the SSB group to which the selected SSB belongs, and the corresponding SSB-RSRP threshold. If the current RSRP value is less than the SSB-RSRP threshold for that SSB group, it is determined that no first-channel retransmission is needed, or a single first-channel transmission is performed. If the current RSRP value is greater than or equal to the SSB-RSRP threshold for that SSB group, it is determined that a first-channel retransmission is required.

[0086] For example, when a network device configures multiple SSB-RSRP thresholds for each SSB group, the multiple SSB-RSRP thresholds are different, and the multiple SSB-RSRP thresholds divide the range of RSRP values ​​into at least three intervals, so that the terminal device performs a measurement on the selected SSB to obtain the current RSRP value, and determines whether to perform repeated transmission on the first channel based on the interval in which the measured current RSRP value is located.

[0087] For example, a network device configures two SSB-RSRP thresholds for an SSB group: a fourth SSB-RSRP threshold A4 and a fifth SSB-RSRP threshold A5, where A4 is less than A5. This divides the RSRP value range into three intervals: (0, A4), [A4, A5), and [A5, A6]. max ), where A max This is the maximum received power of the reference signal.

[0088] When the terminal device selects SSB and performs measurement, the current RSRP value is obtained. If the current RSRP value is in (0, A4), it is determined that no retransmission of the first channel is required; if the current RSRP value is in [A4, A5) or [A5, A4], it is determined that no retransmission of the first channel is required. max When it is determined that the first channel repeat transmission is required, it is then determined that the first channel repeat transmission is required.

[0089] It should be noted that the number of SSB groups, the number of SSBs in each SSB group, the number of SSB-RSRP thresholds configured in each SSB group, and their specific values ​​can be determined according to the actual situation, and this disclosure does not impose specific limitations.

[0090] In this embodiment of the disclosure, by grouping multiple SSBs and configuring one or more SSB-RSRP thresholds for each SSB group, it is ensured that terminal devices with coverage enhancement technology requirements can be used normally, avoiding resource waste caused by using coverage enhancement technology when the terminal device has not entered a coverage-limited scenario, thereby improving uplink coverage performance.

[0091] Figure 5 This diagram illustrates a flowchart of a repetitive transmission method applied to a terminal device, according to an embodiment of this disclosure. Figure 5 As shown, the retransmission method provided in this disclosure is applied to a terminal device and includes:

[0092] S502. Select SSB, where SSB is one of multiple SSBs sent by the network device, and the SSB-RSRP threshold corresponding to each SSB is configured by the network device.

[0093] In one embodiment, when a terminal device receives multiple SSBs sent by a network device, the terminal device selects an SSB based on the received power of each SSB. During the random access process, the terminal device can select the SSB with the highest received power, or it can select an SSB with a received power greater than a preset received power threshold. When there are multiple SSBs with received power greater than the preset received power threshold, one of the multiple SSBs can be selected at will. It should be noted that the selection of SSBs can be determined according to the actual situation, and this disclosure does not impose specific limitations.

[0094] Terminal devices can search for broadcast messages from network devices to obtain the SSB-RSRP thresholds configured by the network devices for each SSB.

[0095] S504. Determine whether to perform repeated transmission on the first channel based on the selected SSB and the corresponding SSB-RSRP threshold.

[0096] In one embodiment, the first channel includes PRACH or Msg3 PUSCH.

[0097] In this embodiment, the terminal device selects an SSB, which is one of multiple SSBs sent by the network device. The SSB-RSRP threshold corresponding to each SSB is configured by the network device. Whether to perform repeated transmission on the first channel is determined based on the selected SSB and its corresponding SSB-RSRP threshold. This network device can flexibly configure the SSB-RSRP threshold according to the number of SSBs, thereby enabling the terminal device to determine whether to perform repeated transmission on the first channel based on the randomly selected SSB and its corresponding SSB-RSRP threshold, improving uplink coverage performance and avoiding resource waste.

[0098] Figure 6This illustration shows a flowchart of another repetitive transmission method applied to a terminal device, provided by an embodiment of this disclosure. Figure 5 Based on the embodiment, S504 is further refined into S5042 to S5044 to limit the situation where the terminal device performs repeated transmission on the first channel. For example... Figure 6 As shown, the repeated transmission method provided in this embodiment includes S502, S5042 to S5044. The method includes:

[0099] S5042. Perform a measurement on the selected SSB to obtain the current RSRP value.

[0100] RSRP is an indicator for measuring the coverage effect of LTE network and is the basis for terminal equipment to make judgments on cell selection and cell reselection. The RSRP measured by the terminal equipment is the difference between the transmit power and loss of the Cell Reference Signal (CRS).

[0101] S5044. If the current RSRP value is greater than or equal to an SSB-RSRP threshold corresponding to the SSB, or if the current RSRP value is greater than or equal to an SSB-RSRP threshold of the SSB group to which the SSB belongs, then the terminal device is determined to perform repeated transmission on the first channel.

[0102] When a network device configures one or more SSB-RSRP thresholds for each SSB, the terminal device can determine one or more SSB-RSRP thresholds corresponding to the selected SSB by searching the network device's broadcast messages.

[0103] When a network device configures an SSB-RSRP threshold for each SSB, if the current RSRP value is greater than the aforementioned SSB-RSRP threshold, it is determined that the terminal device will perform repeated transmission on the first channel.

[0104] When a network device configures multiple SSB-RSRP thresholds for each SSB, if the current RSRP value is greater than any SSB-RSRP threshold, the terminal device is determined to perform repeated transmission on the first channel.

[0105] When a network device configures one or more SSB-RSRP thresholds for each SSB group, the terminal device determines the corresponding SSB group based on the selected SSB and determines one or more SSB-RSRP thresholds corresponding to that SSB group by searching the broadcast messages of the network device.

[0106] When a network device configures an SSB-RSRP threshold for each SSB group, if the current RSRP value is greater than an SSB-RARP threshold corresponding to the SSB group where the selected SSB is located, the terminal device is determined to perform repeated transmission on the first channel.

[0107] When a network device configures multiple SSB-RSRP thresholds for each SSB group, if the current RSRP value is greater than any SSB-RSRP threshold corresponding to the SSB group to which the selected SSB belongs, the terminal device is determined to perform repeated transmission on the first channel.

[0108] In this embodiment of the disclosure, the terminal device performs a measurement on the selected SSB to obtain the current RSRP value. Based on the relationship between the current RSRP value and one or more SSB-RSRP thresholds corresponding to the selected SSB, it determines whether the terminal device should perform a first channel retransmission. Specifically, when the current RSRP value is greater than any SSB-RSRP threshold corresponding to the selected SSB or the SSB group to which the SSB belongs, it is determined that the terminal device should perform a first channel retransmission, thereby improving uplink coverage performance.

[0109] Figure 7 This illustration shows a flowchart of another repetitive transmission method applied to a terminal device, provided by an embodiment of this disclosure. Figure 6 Based on the embodiment, S5046 is added after S5044 to limit the situation in determining the number of repeated transmissions. For example... Figure 7 As shown, the method further includes:

[0110] S5046 determines the number of times the first channel will be repeatedly transmitted based on the SSB-RSRP threshold corresponding to the SSB.

[0111] It should be noted that the specific implementation methods of S502, S5042 to S5044 are the same as those in the aforementioned embodiments, and will not be repeated here.

[0112] In one embodiment, when the network device configures an SSB-RSRP threshold for each SSB, if the current RSRP value is greater than the aforementioned SSB-RSRP threshold, then the number of repeated transmissions on the first channel is determined to be 2.

[0113] When a network device configures multiple SSB-RSRP thresholds for each SSB, if the current RSRP value is greater than any SSB-RSRP threshold, the RSRP interval in which the current RSRP value is located is determined, and the number of repeated transmissions on the first channel is determined based on the RSRP interval.

[0114] For example, a network device configures three SSB-RSRP thresholds for an SSB: a first SSB-RSRP threshold A1, a second SSB-RSRP threshold A2, and a third SSB-RSRP threshold A3, where A1 is less than A2, and A2 is less than A3. This divides the RSRP value range of the terminal device into four intervals: (0, A1), [A1, A2), [A2, A3), [A3, A4], [A5, A6], [A1, A2], [A2, A3], ... max ), where A max The reference signal received power is the maximum value; the number of repetitions of the first channel in the four intervals are 1, 2, 4, and 8, respectively. If the current RSRP value is in the interval [A2, A3), then the number of repetitions of the first channel can be determined to be 4.

[0115] The network device configures one or more SSB-RSRP thresholds for each SSB group. The terminal device determines the number of repeated transmissions on the first channel in a similar manner to the case where one or more SSB-RSRP thresholds are configured for each SSB, and will not be described in detail here.

[0116] In this embodiment of the disclosure, the terminal device determines the number of times the first channel is repeatedly transmitted based on the correspondence between the current RSRP value and the SSB-RSRP threshold corresponding to the selected SSB, which facilitates quick determination and improves coverage enhancement performance.

[0117] Figure 8 This illustration shows a flowchart of another repetitive transmission method applied to a terminal device, provided by an embodiment of this disclosure. Figure 6 Based on the embodiment, S5048 is added after S5042 to limit the case of determining a single transmission. For example... Figure 8 As shown, the repeated transmission method provided in this embodiment includes S502, S5042, and S5048. The method includes:

[0118] S5048. If the current RSRP value is less than the minimum value of the SSB-RSRP threshold corresponding to the SSB, or if the current RSRP value is less than the minimum value of the SSB-RSRP threshold of the SSB group to which the SSB belongs, the terminal device shall perform a single transmission on the first channel.

[0119] It should be noted that the specific implementation of S502 and S5042 in this embodiment is the same as that of S502 and S5042 in the previous embodiment, and will not be repeated here.

[0120] When a network device configures an SSB-RSRP threshold for an SSB, the aforementioned SSB-RSRP threshold is the minimum value of the SSB-RSRP threshold corresponding to the SSB; when a network device configures multiple SSB-RSRP thresholds for an SSB, the minimum value of the SSB-RSRP threshold corresponding to the SSB is the minimum value among the multiple SSB-RSRP thresholds.

[0121] When a network device configures one SSB-RSRP threshold for an SSB group, the aforementioned SSB-RSRP threshold is the minimum value of the SSB-RSRP threshold of the SSB group to which the SSB belongs; when a network device configures multiple SSB-RSRP thresholds for an SSB, the minimum value of the SSB-RSRP threshold of the SSB group to which the SSB belongs is the minimum value among the multiple SSB-RSRP thresholds.

[0122] For example, when the current RSRP value is in the range of (0, A1), it is determined that the terminal device will perform a single transmission on the first channel.

[0123] In this embodiment of the disclosure, when the current RSRP value is less than the minimum value of the SSB-RSRP threshold corresponding to the selected SSB or the SSB group to which the SSB belongs, the terminal device is determined to perform a single transmission on the first channel, thereby improving uplink coverage performance.

[0124] It should be noted that the retransmission method on the terminal device side is similar to the retransmission method on the network device side, and will not be elaborated further in this disclosure.

[0125] Based on the same inventive concept, this disclosure also provides a repeating transmission device and a communication system, as described in the following embodiments. Since the principle by which this device and system embodiments solve the problem is similar to that of the above-described method embodiments, the implementation of this device embodiment can refer to the implementation of the above-described method embodiments, and repeated details will not be repeated.

[0126] Figure 9 This diagram illustrates a retransmission device applied to a network device according to an embodiment of the present disclosure. Figure 9 As shown, the device includes a beam transmission module 910 and a threshold configuration module 920.

[0127] Among them, the beam transmission module 910 is used to transmit multiple SSBs;

[0128] The threshold configuration module 920 is used to configure the SSB-RSRP threshold for each SSB, so that the terminal device can determine whether to perform repeated transmission on the first channel based on the selected SSB and the SSB-RSRP threshold corresponding to the SSB.

[0129] In one embodiment, the threshold configuration module 920 is used to configure one or more SSB-RSRP thresholds for each SSB.

[0130] In one embodiment, the threshold configuration module 920 is used to divide SSBs into multiple groups and configure one or more SSB-RSRP thresholds for each SSB group, wherein an SSB in an SSB group corresponds to one or more SSB-RSRP thresholds.

[0131] It should be noted that the first channel includes PRACH or Msg3 PUSCH.

[0132] Figure 10 This diagram illustrates a repetitive transmission device applied to a terminal device according to an embodiment of the present disclosure. Figure 10 As shown, the device includes an SSB selection module 1010 and a duplicate transmission determination module 1020:

[0133] The SSB selection module 1010 is used to select an SSB, wherein the SSB is one of multiple SSBs sent by the network device, and the SSB-RSRP corresponding to each SSB is configured by the network device.

[0134] The repetitive transmission determination module 1020 is used to determine whether to perform repetitive transmission of the first channel based on the selected SSB and the SSB-RSRP threshold corresponding to the SSB.

[0135] In one embodiment, the repetitive transmission determination module 1020 is used to perform a measurement on the selected SSB to obtain the current RSRP value; if the current RSRP value is greater than or equal to an SSB-RSRP threshold corresponding to the SSB, or if the current RSRP value is greater than or equal to an SSB-RSRP threshold of the SSB group to which the SSB is located, then it is determined that the terminal device performs repetitive transmission on the first channel.

[0136] In one embodiment, the retransmission determination module 1020 is used to determine the number of retransmissions of the first channel based on the SSB-RSRP threshold corresponding to the SSB.

[0137] In one embodiment, the repeated transmission determination module 1020 is configured to perform a single transmission on the first channel if the current RSRP value is less than an SSB-RSRP threshold corresponding to the SSB, or if the current RSRP value is less than an SSB-RSRP threshold of the SSB group to which the SSB belongs.

[0138] It should be noted that the first channel includes PRACH or Msg3 PUSCH.

[0139] This disclosure also provides a communication system, including a network device 102 and a terminal device 101. The network device 102 is used to transmit multiple SSBs and configure an SSB-RSRP threshold for each SSB. The terminal device 101 is used to select an SSB, wherein the SSB is one of the multiple SSBs transmitted by the network device 102, and the SSB-RSRP corresponding to each SSB is configured by the network device 102. The terminal device 101 determines whether to perform a first channel retransmission based on the selected SSB and the SSB-RSRP threshold corresponding to the SSB.

[0140] Those skilled in the art will understand that various aspects of this disclosure can be implemented as a system, method, or program product. Therefore, various aspects of this disclosure can be specifically implemented in the following forms: a completely hardware implementation, a completely software implementation (including firmware, microcode, etc.), or a combination of hardware and software aspects, collectively referred to herein as a "circuit," "module," or "system."

[0141] The following reference Figure 11 To describe an electronic device 1100 according to such an embodiment of the present disclosure. Figure 11 The electronic device 1100 shown is merely an example and should not impose any limitation on the functionality and scope of use of the embodiments disclosed herein.

[0142] like Figure 11 As shown, the electronic device 1100 is manifested in the form of a general-purpose computing device. The components of the electronic device 1100 may include, but are not limited to: at least one processing unit 1110, at least one storage unit 1120, and a bus 1130 connecting different system components (including storage unit 1120 and processing unit 1110).

[0143] The storage unit stores program code, which can be executed by the processing unit 1110, causing the processing unit 1110 to perform the steps described in the "Exemplary Methods" section above according to various exemplary embodiments of this disclosure.

[0144] For example, the processing unit 1110 may perform the following steps in the above method embodiment: send multiple SSBs; configure an SSB-RSRP threshold for each SSB, so that the terminal device determines whether to perform repeated transmission of the first channel based on the selected SSB and the SSB-RSRP threshold corresponding to the SSB.

[0145] In one embodiment, the processing unit 1110 may perform the following steps of the above method embodiment: selecting an SSB, wherein the SSB is one of a plurality of SSBs sent by the network device, and the SSB-RSRP threshold corresponding to each SSB is configured by the network device; determining whether to perform repeated transmission of the first channel based on the selected SSB and the SSB-RSRP threshold corresponding to the SSB.

[0146] Storage unit 1120 may include a readable medium in the form of a volatile storage unit, such as random access memory (RAM) 11201 and / or cache memory 11202, and may further include a read-only memory (ROM) 11203.

[0147] Storage unit 1120 may also include a program / utility 11204 having a set (at least one) of program modules 11205, such program modules 11205 including but not limited to: operating system, one or more application programs, other program modules and program data, each or some combination of these examples may include an implementation of a network environment.

[0148] Bus 1130 can represent one or more of several types of bus structures, including a memory cell bus or memory cell controller, a peripheral bus, a graphics acceleration port, a processing unit, or a local bus using any of the various bus structures.

[0149] Electronic device 1100 can also communicate with one or more external devices 1140 (e.g., keyboard, pointing device, Bluetooth device, etc.), and with one or more devices that enable a user to interact with electronic device 1100, and / or with any device that enables electronic device 1100 to communicate with one or more other computing devices (e.g., router, modem, etc.). This communication can be performed via input / output (I / O) interface 1150. Furthermore, electronic device 1100 can also communicate with one or more networks (e.g., local area network (LAN), wide area network (WAN), and / or public networks, such as the Internet) via network adapter 1160. As shown, network adapter 1160 communicates with other modules of electronic device 1100 via bus 1130. It should be understood that, although not shown in the figures, other hardware and / or software modules can be used in conjunction with electronic device 1100, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems.

[0150] From the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein can be implemented by software or by combining software with necessary hardware. Therefore, the technical solutions according to the embodiments of this disclosure can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (such as a CD-ROM, USB flash drive, external hard drive, etc.) or on a network, including several instructions to cause a computing device (such as a personal computer, server, terminal device, or network device, etc.) to execute the methods according to the embodiments of this disclosure.

[0151] In exemplary embodiments of this disclosure, a computer-readable storage medium is also provided, which may be a readable signal medium or a readable storage medium. The computer-readable storage medium stores a program product capable of implementing the methods described above. In some possible implementations, various aspects of this disclosure may also be implemented as a program product including program code, which, when run on a user terminal, causes the user terminal to perform the steps described in the "Exemplary Methods" section of this specification according to various exemplary embodiments of this disclosure.

[0152] More specific examples of computer-readable storage media in this disclosure may include, but are not limited to: electrical connections having one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.

[0153] In this disclosure, a computer-readable storage medium may include a data signal propagated in baseband or as part of a carrier wave, carrying readable program code. Such propagated data signals may take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. A readable signal medium may also be any readable medium other than a readable storage medium, capable of transmitting, propagating, or transmitting a program for use by or in connection with an instruction execution system, apparatus, or device.

[0154] Optionally, the program code contained on the computer-readable storage medium may be transmitted using any suitable medium, including but not limited to wireless, wired, optical fiber, RF, etc., or any suitable combination thereof.

[0155] In practical implementation, program code for performing the operations of this disclosure can be written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Java and C++, and conventional procedural programming languages ​​such as C or similar languages. The program code can execute entirely on the user's computing device, partially on the user's computing device, as a standalone software package, partially on the user's computing device and partially on a remote computing device, or entirely on a remote computing device or server. In cases involving remote computing devices, the remote computing device can be connected to the user's computing device via any type of network, including a local area network (LAN) or a wide area network (WAN), or it can be connected to an external computing device (e.g., via the Internet using an Internet service provider).

[0156] It should be noted that although several modules or units for the device used to perform actions have been mentioned in the detailed description above, this division is not mandatory. In fact, according to embodiments of this disclosure, the features and functions of two or more modules or units described above can be embodied in one module or unit. Conversely, the features and functions of one module or unit described above can be further divided and embodied by multiple modules or units.

[0157] Furthermore, although the steps of the method in this disclosure are described in a specific order in the accompanying drawings, this does not require or imply that the steps must be performed in that specific order, or that all the steps shown must be performed to achieve the desired result. Additional or alternative steps may be omitted, multiple steps may be combined into one step, and / or a step may be broken down into multiple steps.

[0158] From the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein can be implemented by software or by combining software with necessary hardware. Therefore, the technical solutions according to the embodiments of this disclosure can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (such as a CD-ROM, USB flash drive, external hard drive, etc.) or on a network, including several instructions to cause a computing device (such as a personal computer, server, mobile terminal, or network device, etc.) to execute the methods according to the embodiments of this disclosure.

[0159] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.

Claims

1. A method for repeated transmission, applied to network devices, characterized in that, include: Send multiple synchronization signal blocks (SSBs); Multiple synchronization signal block reference signal received power (SSB-RSRP) thresholds are configured for each SSB, so that the terminal device can determine whether to perform repeated transmission of the first channel based on the selected SSB and the multiple SSB-RSRP thresholds corresponding to the SSB.

2. The repeated transmission method according to claim 1, characterized in that, The configuration of multiple SSB-RSRP thresholds for each SSB includes: The SSBs are divided into multiple groups, and multiple SSB-RSRP thresholds are configured for each SSB group. In this case, an SSB in an SSB group corresponds to multiple SSB-RSRP thresholds.

3. The repeated transmission method according to any one of claims 1-2, characterized in that, The first channel includes the Physical Random Access Channel (PRACH) or the Physical Uplink Shared Channel (PUSCH) (message 3, Msg3).

4. A method for repeated transmission, applied to a terminal device, characterized in that, include: Select an SSB, wherein the SSB is one of a plurality of SSBs sent by the network device, and the plurality of SSB-RSRP thresholds corresponding to each SSB are configured by the network device; Whether to perform repeated transmission on the first channel is determined based on the selected SSB and the multiple SSB-RSRP thresholds corresponding to the SSB.

5. The repeated transmission method according to claim 4, characterized in that, The selection of SSB includes: The SSB is selected from multiple SSB groups, wherein the multiple SSB groups are multiple SSB packets sent by the network device, each SSB group corresponds to multiple SSB-RSRP thresholds, and an SSB in an SSB group corresponds to multiple SSB-RSRP thresholds.

6. The repeated transmission method according to claim 4 or 5, characterized in that, The method further includes: The number of times the first channel is repeatedly transmitted is determined based on the SSB-RSRP threshold corresponding to the SSB.

7. The repeated transmission method according to claim 4 or 5, characterized in that, The first channel includes PRACH or Msg3 PUSCH.

8. A repetitive transmission device, characterized in that, Applied to network devices, including: Beam transmission module, used to transmit multiple SSBs; The threshold configuration module is used to configure multiple SSB-RSRP thresholds for each SSB, so that the terminal device can determine whether to perform repeated transmission on the first channel based on the selected SSB and the multiple SSB-RSRP thresholds corresponding to the SSB.

9. A repeating transmission device, applied to a terminal device, characterized in that, include: The SSB selection module is used to select an SSB, wherein the SSB is one of a plurality of SSBs sent by the network device, and the plurality of SSB-RSRP thresholds corresponding to each SSB are configured by the network device. The repetitive transmission determination module is used to determine whether to perform repetitive transmission of the first channel based on the selected SSB and the multiple SSB-RSRP thresholds corresponding to the SSB.

10. A communication system, comprising network equipment and terminal equipment, characterized in that, The network device is used to send multiple SSBs; and to configure multiple SSB-RSRP thresholds for each SSB; The terminal device is used to select an SSB, wherein the SSB is one of a plurality of SSBs sent by the network device, and the plurality of SSB-RSRP thresholds corresponding to each SSB are configured by the network device. Whether to perform repeated transmission on the first channel is determined based on the selected SSB and the multiple SSB-RSRP thresholds corresponding to the SSB.

11. An electronic device, characterized in that, include: processor; as well as Memory for storing the executable instructions of the processor; The processor is configured to execute the repeating transmission method according to any one of claims 1 to 3, or the repeating transmission method according to any one of claims 4 to 7, by executing the executable instructions.

12. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the repeated transmission method according to any one of claims 1 to 3, or the repeated transmission method according to any one of claims 4 to 7.

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