Repeated transmission method, device, system, equipment and medium

Abstract

The invention provides a repeated transmission method, device and system, equipment and a medium, and relates to the technical field of wireless communication. The method comprises: a network device sending a plurality of synchronization signal blocks (SSBs); according to the method and the device, the SSB-RSRP threshold is configured for each SSB, the terminal equipment selects the SSB, and whether the first channel repeated transmission is carried out or not is determined according to the selected SSB and the SSB-RSRP threshold corresponding to the SSB, the uplink coverage performance can be improved, and resource waste is avoided.

Description

Background Art

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

[0003] In the related technology, the terminal determines whether it is necessary to use repeated transmission and the number of repeated transmissions to send the Physical Random Access Channel (PRACH) through the single synchronization signal block reference signal received power (Synchronization Signal / PBCH Block Reference Signal Received Power, SSB-RSRP) threshold configured by the base station. For the FR2 frequency band, such as millimeter wave, the base station improves coverage by sending multiple SSBs. However, the use of a single SSB-RSRP threshold can easily cause the terminal to be unable to use coverage enhancement technology normally, resulting in a waste of resources.

[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0005] The present disclosure provides a repeated transmission method, apparatus, system, device and medium, which at least to a certain extent overcomes the problem in the related art that the use of a single SSB-RSRP threshold easily causes the terminal to be unable to use the coverage enhancement technology normally, resulting in a waste of resources.

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

[0007] According to one aspect of the present disclosure, a repeated transmission method is provided, which is applied to a network device, including: sending multiple synchronization signal blocks SSB; configuring a synchronization signal block reference signal receiving power SSB-RSRP threshold for each SSB, so that a terminal device determines whether to perform first channel repeated transmission based on the selected SSB and the SSB-RSRP threshold corresponding to the SSB.

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

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

[0010] In one embodiment of the present disclosure, the first channel includes a physical random access channel PRACH or a message 3Msg3 physical uplink shared channel PUSCH.

[0011] According to another aspect of the present disclosure, a repeated transmission method is also provided, which is applied to a terminal device, including: selecting an SSB, wherein the SSB is one of multiple SSBs sent by a 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.

[0012] In one embodiment of the present disclosure, determining whether to perform first channel repeated transmission based on the selected SSB and the SSB-RSRP threshold corresponding to the SSB includes: performing 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 is located, then determining that the terminal device performs first channel repeated transmission.

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

[0014] In one embodiment of the present disclosure, the method also 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 where the SSB is located, the terminal device performs a single transmission on the first channel.

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

[0016] According to another aspect of the present disclosure, a repeated transmission device is provided, which is applied to a network device, including: a beam sending module, used to send multiple SSBs; a threshold configuration module, used to configure an SSB-RSRP threshold for each SSB, so that a terminal device determines whether to perform repeated transmission of the first channel according to a selected SSB and the SSB-RSRP threshold corresponding to the SSB.

[0017] According to another aspect of the present disclosure, a repeated transmission apparatus is provided, which is applied to a terminal device, including: an SSB selection module, used to select 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; a repeated transmission determination module, used to determine whether to perform repeated transmission of the first channel according to the selected SSB and the SSB-RSRP threshold corresponding to the SSB.

[0018] According to another aspect of the present disclosure, a communication system is provided, including a network device and a terminal device, wherein the network device is used to send multiple SSBs; configure an SSB-RSRP threshold for each SSB; the terminal device is used to select an SSB, wherein the SSB is one of the multiple SSBs sent by the network device, and the SSB-RSRP corresponding to each SSB is configured by the network device; and determine whether to perform first channel repeated transmission based on the selected SSB and the SSB-RSRP threshold corresponding to the SSB.

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

[0020] According to another aspect of the present disclosure, a computer-readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the above-mentioned repeated transmission method is implemented.

[0021] In the embodiment of the present disclosure, the network device sends multiple SSBs; configures an SSB-RSRP threshold for each SSB, and the terminal device determines whether to perform repeated transmission of the first channel according to the selected SSB and the SSB-RSRP threshold corresponding to the SSB. The network device of the present disclosure can flexibly configure the SSB-RSRP threshold according to the number of SSBs, so that the terminal device determines whether to perform repeated transmission of the first channel according to the SSB selected by random access and the corresponding SSB-RSRP threshold, thereby improving uplink coverage performance and avoiding resource waste.

[0022] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the specification are used to explain the principles of the present disclosure. Obviously, the accompanying drawings described below are only some embodiments of the present disclosure, and for ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0024] Figure 1 A schematic diagram of a communication system architecture provided by an embodiment of the present disclosure is shown.

[0025] Figure 2 A flow chart of a repeated transmission method applied to a network device provided by an embodiment of the present disclosure is shown.

[0026] Figure 3 A flow chart of another repeated transmission method applied to a network device provided by an embodiment of the present disclosure is shown.

[0027] Figure 4 A flow chart of another repeated transmission method applied to a network device provided by an embodiment of the present disclosure is shown.

[0028] Figure 5 A flow chart of a repeated transmission method applied to a terminal device provided by an embodiment of the present disclosure is shown.

[0029] Figure 6 A flow chart of another repeated transmission method applied to a terminal device provided by an embodiment of the present disclosure is shown.

[0030] Figure 7 A flow chart of another repeated transmission method applied to a terminal device provided by an embodiment of the present disclosure is shown.

[0031] Figure 8 A flow chart of another repeated transmission method applied to a terminal device provided by an embodiment of the present disclosure is shown.

[0032] Fig. 9 A schematic diagram of a repeated transmission device applied to a network device provided by an embodiment of the present disclosure is shown.

[0033] Fig.10 A schematic diagram of a repeated transmission device applied to a terminal device provided in an embodiment of the present disclosure is shown.

[0034] Fig.11 A structural block diagram of an electronic device in an embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0035] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that the disclosure will be more comprehensive and complete and to fully convey the concepts of the example 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] In addition, the accompanying drawings are only schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the figures represent the same or similar parts, and their repeated description will be omitted. Some of the block diagrams shown in the accompanying drawings are functional entities and do not necessarily correspond to physically or logically independent entities. These functional entities can be implemented in software form, or implemented in one or more hardware modules or integrated circuits, or implemented in different networks and / or processor devices and / or microcontroller devices.

[0037] Figure 1 A schematic diagram showing an exemplary system architecture that can be applied to the repeated transmission method or repeated transmission device according to an embodiment of the present disclosure.

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

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

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

[0041] The terminal device 101, also known as a terminal (User Equipment, UE), a user terminal, a user device, etc., can be various electronic devices, including but not limited to smart phones, tablet computers, laptop portable computers, desktop computers, wearable devices, augmented reality devices, virtual reality devices, vehicle-mounted devices, pedestrian terminals, smart homes (home appliances with wireless communication functions, such as refrigerators, televisions, washing machines or furniture, etc.), etc. The terminal device 101. Wearable devices include smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry, smart watches, smart clothing, game consoles, etc. It should be noted that the embodiments of the present disclosure do not limit the type of the terminal device 101.

[0042] Optionally, the applications installed in different terminal devices 101 are the same, or the terminal devices 101 are the same type of applications based on different operating systems. Based on the different terminal platforms, the specific form of the terminal device 101 of the application can also be different, for example, the application client can be a mobile terminal, a PC terminal, etc.

[0043] The network device 102 may be a base station or a core network. Among them, the base station may be referred to as a node B, an evolved node B (evolved Node B, eNB), a 5G base station (gNB), or a later version of a base station, a radio network controller (Radio Network Controller, RNC), a node B (Node B, NB), a base station controller (Base Station Controller, BSC), a base transceiver station (Base Transceiver Station, BTS), a home base station (for example, Home evolved Node B, or Home Node B, HNB), a baseband unit (Base Band Unit, BBU), a wireless fidelity (Wireless Fidelity, WIFI) access point (Access Point, AP), a transmission point (transmission and receiver point, TRP or transmission point, TP), or other words in the field, as long as the same technical effect is achieved, the base station is not limited to a specific technical vocabulary. It should be noted that in the embodiment of the present disclosure, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.

[0044] The network device 102 may be a 4G base station, or a 5G base station, or a higher version of a base station, or a base station in other communication systems, or may be referred to as a Node B, an evolved Node B, or a Transmission Reception Point (TRP), or an Access Point (AP), or a WiFi device, or other terms in the field, as long as the same technical effect is achieved, the 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 in the figure is only for illustration, and any number of terminal devices, networks, and network devices may be provided according to actual needs, and the embodiments of the present disclosure do not limit this.

[0046] In the 3rd Generation Partnership Project (3GPP) Rel-17NR coverage enhancement, repeated transmission is one of the solutions to improve the coverage of Message 3 (Msg3) physical uplink shared channel (PUSCH). The terminal device determines whether it is necessary to send Msg3 PUSCH by repeated transmission through a single SSB-RSRP threshold configured by the network device (such as the base station).

[0047] In 3GPP Rel-18 NR coverage enhancement, repeated transmission is one of the solutions to improve PRACH coverage. The terminal device determines whether to use repeated transmission and the number of repeated transmissions to send PRACH through a single SSB-RSRP threshold configured by a network device (such as a base station).

[0048] For Frequency range 2 (FR2 band), which includes the millimeter wave bands between 24.25 GHz and 52 and 6 GHz, the base station improves coverage by sending multiple SSBs. Each SSB can cover different areas, such as horizontal coverage or vertical coverage, indoor coverage or outdoor coverage. If all SSBs use a single SSB-RSRP threshold, the following two problems may occur:

[0049] 1) The 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 not meet the requirements and cannot use coverage enhancement technology;

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

[0051] In order to solve the above problems, the present disclosure provides a repeated transmission method, in which the network device sends multiple SSBs; configures an SSB-RSRP threshold for each SSB, and the terminal device determines whether to perform repeated transmission of the first channel according to the selected SSB and the SSB-RSRP threshold corresponding to the SSB. The network device of the present disclosure can flexibly configure the SSB-RSRP threshold according to the number of SSBs, so that the terminal device determines whether to perform repeated transmission of the first channel according to the SSB selected by random access and the corresponding SSB-RSRP threshold, thereby improving uplink coverage performance and avoiding resource waste.

[0052] The present exemplary implementation is described in detail below with reference to the accompanying drawings and embodiments.

[0053] First, a repeated transmission method is provided in an embodiment of the present disclosure, and the method can be executed by any electronic device with computing and processing capabilities. In a feasible implementation, the process corresponding to the method can be executed by a network device; in another feasible implementation, the process corresponding to the method can be executed by a terminal device; in other feasible implementations, the process corresponding to the method can be executed by the interaction of a network device and a terminal device.

[0054] Figure 2 FIG. 1 is a flow chart of a repeated transmission method applied to a network device provided by an embodiment of the present disclosure. Figure 2 As shown, the repeated transmission method provided in the embodiment of the present disclosure is applied to a network device, and includes the following steps:

[0055] S202. Send multiple synchronization signal blocks SSB.

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

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

[0058] Different SSBs can be sent using different beams, and the coverage of the SSB can be determined by adjusting the shape of the beam, the pointing angle of the beam, etc.

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

[0062] For example, the terminal device performs measurement on the selected SSB to obtain the current RSRP value, and determines whether to repeat the transmission of 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 the terminal device starts to initiate a call. After the terminal device receives the Fast Physical Access Channel (FPACH) response message, it sends a Radio Resource Control (RRC) Connection Response (Connection Request) message on PRACH according to the information indicated by the base station to establish an RRC connection.

[0065] In the contention random access process, also known as the 4-step Random Access Channel (RACH), the terminal device first sends Msg1 to the network device, including the preamble; after the network device detects the preamble, it will send Msg2, including the Random Access Response (RAR) message corresponding to the preamble; after the terminal device receives Msg2, it sends Msg3 according to the instruction of RAR; after receiving Msg3, the network device will send Msg4, including the contention resolution ID; when the terminal device receives Msg4, the 4-step random access is completed.

[0066] If the contention resolution is unsuccessful, RACH is reselected, resources are sent, PRACH is sent, and the next random access attempt is made.

[0067] In the embodiment of the present disclosure, the network device sends multiple SSBs; configures an SSB-RSRP threshold for each SSB, and the terminal device determines whether to perform repeated transmission of the first channel according to the selected SSB and the SSB-RSRP threshold corresponding to the SSB. The network device of the present disclosure can flexibly configure the SSB-RSRP threshold according to the number of SSBs, so that the terminal device determines whether to perform repeated transmission of the first channel according to the SSB selected by random access and the corresponding SSB-RSRP threshold, thereby improving uplink coverage performance and avoiding resource waste.

[0068] Figure 3 Another flow chart of a repeated transmission method applied to a network device provided by an embodiment of the present disclosure is shown. Figure 2 Based on the embodiment, S204 is further defined as S2042 to define a method of SSB-RSRP threshold. Figure 3 As shown, the repeated transmission method provided in the embodiment of the present disclosure 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 method of S202 in this embodiment is the same as the specific implementation method of S202 in the aforementioned 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 a basis for the terminal device to determine whether to perform repeated transmission on the first channel.

[0072] Exemplarily, when the network device configures an SSB-RSRP threshold for SSB, the SSB-RSRP threshold divides the value range of the reference signal received power of the terminal device into two intervals, so that the terminal device determines whether to perform repeated transmission of the first channel according to the interval in which the current RSRP value obtained by measurement is located. For example, the terminal device performs measurement according to the selected SSB to obtain the corresponding current RSRP value. If the current RSRP value is less than the above SSB-RSRP threshold, there is no need to perform repeated transmission of the first channel, or a single transmission of the first channel is performed; if the current RSRP value is greater than or equal to the above SSB-RSRP threshold, it is determined that repeated transmission of the first channel is required.

[0073] Exemplarily, when the network device configures multiple SSB-RSRP thresholds for each SSB, the multiple SSB-RSRP thresholds are different, and the multiple SSB-RSRP thresholds divide the RSRP value range of the terminal device into at least three intervals, so that the terminal device determines whether to repeat the first channel transmission based on the interval in which the current RSRP value obtained by measurement is located.

[0074] For example, the network device configures three SSB-RSRP thresholds for one SSB, namely, the first SSB-RSRP threshold A1, the second SSB-RSRP threshold A2, and the third SSB-RSRP threshold A3, and A1 is less than A2, and A2 is less than A3, so that the RSRP value range of the terminal device is divided into four intervals by the three SSB-RSRP thresholds, namely (0, A1), [A1, A2), [A2, A3), [A3, A max ), where A max is the maximum value of the reference signal received power.

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

[0076] It should be noted that when the network device configures multiple SSB-RSRP thresholds for each SSB, the number of SSB-RSRP thresholds configured for different SSBs may be the same or different; accordingly, the specific numerical values ​​of multiple SSB-RSRP thresholds configured for different SSBs may be the same or different, and the present disclosure does not make specific limitations.

[0077] In the embodiments of the present disclosure, one or more SSB-RSRP thresholds are configured for each SSB to ensure that terminal devices that require coverage enhancement technology can be used normally, thereby avoiding waste of resources when using coverage enhancement technology when the terminal device does not enter a coverage-restricted scenario, thereby improving uplink coverage performance.

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

[0079] S2044. Divide the SSBs into multiple groups, and configure one or more SSB-RSRP thresholds for each SSB group, wherein the SSBs within an SSB group correspond to one or more SSB-RSRP thresholds.

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

[0081] In one embodiment, multiple SSBs may be grouped according to the type of SSBs. The type of SSBs may be classified into one of a vertical coverage type and a horizontal coverage type, or may be classified into one of an indoor coverage type and an outdoor coverage type.

[0082] The SSB group can be represented by a group identifier. Different SSB groups have different group identifiers. The group identifier can be used as a unique identifier of the SSB group. The group identifier can be represented by text, numbers, symbols, etc., and the present disclosure does not make specific limitations.

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

[0084] All SSBs in each SSB group are configured with one or more SSB-RSRP thresholds, that is, all SSBs in the same SSB group share one or more SSB-RSRP thresholds configured for the SSB group by network devices.

[0085] Exemplarily, when multiple SSBs are divided into SSB groups, and the network device configures an SSB-RSRP threshold for the SSB group, the SSB-RSRP threshold divides the RSRP value range into two intervals, so that after the terminal device selects an SSB in the SSB group, it determines whether to perform repeated transmission of the first channel according to the interval in which the current RSRP value obtained by measurement is located. For example, the terminal device performs measurement according to the selected SSB to obtain the corresponding current RSRP value, determines the SSB group to which it belongs and the SSB-RSRP threshold corresponding to the SSB group according to the selected SSB, and if the current RSRP value is less than the SSB-RSRP threshold corresponding to the above SSB group, it is determined that repeated transmission of the first channel is not required, or a single transmission of the first channel is performed; if the current RSRP value is greater than or equal to the SSB-RSRP threshold corresponding to the above SSB group, it is determined that repeated transmission of the first channel is required.

[0086] Exemplarily, when the 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 RSRP value range into at least three intervals, so that the terminal device performs measurement on the selected SSB to obtain the current RSRP value, and determines whether to repeat the first channel transmission based on the interval in which the current RSRP value obtained by the measurement is located.

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

[0088] When the terminal device selects SSB and performs measurement to obtain the current RSRP value, when the current RSRP value is (0, A4), it is determined that there is no need to perform repeated transmission of the first channel; when the current RSRP value is [A4, A5), [A5, A max ), it is determined that repeated transmission of the first channel 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 for each SSB group, and the specific values ​​can be determined according to actual conditions, and this disclosure does not make specific limitations.

[0090] In the embodiments of the present disclosure, multiple SSBs are grouped and one or more SSB-RSRP thresholds are configured for each SSB group to ensure that terminal devices that require coverage enhancement technology can be used normally, thereby avoiding waste of resources when using coverage enhancement technology when the terminal device does not enter a coverage-restricted scenario, thereby improving uplink coverage performance.

[0091] Figure 5 FIG. 2 shows a flow chart of a repeated transmission method applied to a terminal device provided by an embodiment of the present disclosure. Figure 5 As shown, the repeated transmission method provided by the present disclosure is applied to a terminal device, comprising:

[0092] S502. Select an SSB, where the 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 according to the receiving power of each SSB. During the random access process of the terminal device, the SSB with the largest receiving power can be selected, or the SSB with a receiving power greater than a preset receiving power threshold can be selected. When there are multiple SSBs with receiving power greater than the preset receiving power threshold, one of the above multiple SSBs can be selected. It should be noted that the selection of SSB can be determined according to actual conditions, and this disclosure does not make specific limitations.

[0094] The terminal device can search for the broadcast message of the network device to obtain the SSB-RSRP threshold configured by the network device for each SSB.

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

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

[0097] In the embodiment of the present disclosure, the terminal device selects an SSB, where the 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, and whether to perform repeated transmission of the first channel is determined according to the selected SSB and the SSB-RSRP threshold corresponding to the SSB. The network device of the present disclosure can flexibly configure the SSB-RSRP threshold according to the number of SSBs, so that the terminal device determines whether to perform repeated transmission of the first channel according to the SSB selected by random access and the corresponding SSB-RSRP threshold, thereby improving uplink coverage performance and avoiding resource waste.

[0098] Figure 6Another flow chart of a repeated transmission method applied to a terminal device provided by an embodiment of the present disclosure is shown. Figure 5 Based on the embodiment, S504 is further refined into S5042 to S5044 to limit the situation where the terminal device repeatedly transmits the first channel. Figure 6 As shown, the repeated transmission method provided in the embodiment of the present disclosure includes S502, S5042-S5044. The method includes:

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

[0100] RSRP is an indicator to measure the coverage of LTE network and is the basis for terminal equipment to select and reselect cells. The RSRP measured by the terminal equipment is the difference between the transmission 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, it is determined that the terminal device performs repeated transmission on the first channel.

[0102] When the 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 broadcast message of the network device.

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

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

[0105] When the 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 the one or more SSB-RSRP thresholds corresponding to the SSB group by searching the broadcast message of the network device.

[0106] When the 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 to which the selected SSB belongs, it is determined that the terminal device performs repeated transmission on the first channel.

[0107] When the 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 where the selected SSB is located, it is determined that the terminal device performs repeated transmission on the first channel.

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

[0109] Figure 7 A flowchart of another repeated transmission method applied to a terminal device provided by an embodiment of the present disclosure is shown. Figure 6 Based on the embodiment, S5046 is added after S5044 to limit the situation of determining the number of repeated transmissions. Figure 7 As shown, the method also includes:

[0110] S5046 determines the number of times the first channel is repeatedly transmitted according to the SSB-RSRP threshold corresponding to the SSB.

[0111] It should be noted that the specific implementation of the above S502 and S5042 to S5044 is the same as the specific implementation of the above embodiment, 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 above-mentioned SSB-RSRP threshold, the number of repeated transmissions of the first channel is determined to be 2.

[0113] When the 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 times the first channel is repeatedly transmitted is determined based on the RSRP interval.

[0114] For example, the network device configures three SSB-RSRP thresholds for one SSB, namely, the first SSB-RSRP threshold A1, the second SSB-RSRP threshold A2, and the third SSB-RSRP threshold A3, and A1 is less than A2, and A2 is less than A3, so that the RSRP value range of the terminal device is divided into four intervals by the three SSB-RSRP thresholds, namely (0, A1), [A1, A2), [A2, A3), [A3, A max ), where A max is the maximum value of the reference signal received power; the number of repeated transmissions of the first channel corresponding to the four intervals are 1, 2, 4, and 8 respectively. If the interval where the current RSRP value is located is [A2, A3), it can be determined that the number of repeated transmissions of the first channel is 4.

[0115] The network device configures one or more SSB-RSRP thresholds for each SSB group. The situation in which the terminal device determines the number of repeated transmissions of the first channel is similar to the situation in which one or more SSB-RSRP thresholds are configured for each SSB, and will not be repeated here.

[0116] In the disclosed embodiment, the terminal device determines the number of repeated transmissions of the first channel based on the correspondence between the current RSRP value and the SSB-RSRP threshold corresponding to the selected SSB, which facilitates rapid determination and improves coverage enhancement performance.

[0117] Figure 8 A flowchart of another repeated transmission method applied to a terminal device provided by an embodiment of the present disclosure is shown. Figure 6 Based on the embodiment, S5048 is added after S5042 to limit the situation of determining a single transmission. Figure 8 As shown, the repeated transmission method provided in the embodiment of the present disclosure 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 where the SSB is located, the terminal device performs a single transmission on the first channel.

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

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

[0121] When the network device configures an SSB-RSRP threshold for an SSB group, the above-mentioned SSB-RSRP threshold is the minimum value of the SSB-RSRP threshold of the SSB group where the SSB is located; when the network device configures multiple SSB-RSRP thresholds for SSB, the minimum value of the SSB-RSRP threshold of the SSB group where the SSB is located is the minimum value of the multiple SSB-RSRP thresholds.

[0122] Exemplarily, when the current RSRP value is in the interval (0, A1), it is determined that the terminal device performs a single transmission on the first channel.

[0123] In an embodiment of the present 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, it is determined that the terminal device performs a single transmission on the first channel, thereby improving the uplink coverage performance.

[0124] It should be noted that the repeated transmission method on the terminal device side is similar to the repeated transmission method on the network device side, and this disclosure will not go into details.

[0125] Based on the same inventive concept, the embodiments of the present disclosure also provide a repeated transmission device and a communication system, as described in the following embodiments. Since the principles of solving the problem in the device and system embodiments are similar to those in the above method embodiments, the implementation of the device embodiment can refer to the implementation of the above method embodiments, and the repeated parts will not be repeated.

[0126] Fig. 9 FIG. 2 is a schematic diagram of a repeated transmission device applied to a network device provided by an embodiment of the present disclosure. Fig. 9 As shown, the device includes: a beam sending module 910 and a threshold configuration module 920.

[0127] Wherein, 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 determines whether to perform first channel repeated transmission 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 the SSBs into multiple groups and configure one or more SSB-RSRP thresholds for each SSB group, wherein the SSBs within an SSB group correspond to one or more SSB-RSRP thresholds.

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

[0132] Fig.10 FIG. 2 is a schematic diagram of a repeated transmission device applied to a terminal device provided by an embodiment of the present disclosure. Fig.10 As shown, the device includes an SSB selection module 1010 and a repeated 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 repeated transmission determination module 1020 is used to determine whether to perform repeated transmission on the first channel according to the selected SSB and the SSB-RSRP threshold corresponding to the SSB.

[0135] In one embodiment, the repeated transmission determination module 1020 is used to perform measurements 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 is located, it is determined that the terminal device performs repeated transmission on the first channel.

[0136] In one embodiment, the repeated transmission determination module 1020 is used to determine the number of repeated transmissions of the first channel according to the SSB-RSRP threshold corresponding to the SSB.

[0137] In one embodiment, the repeated transmission determination module 1020 is used to, 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, the terminal device performs a single transmission on the first channel.

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

[0139] The present disclosure also provides a communication system, including a network device 102 and a terminal device 101, the network device 102 is used to send multiple SSBs; 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 sent by the network device 102, and the SSB-RSRP corresponding to each SSB is configured by the network device 102; determine whether to perform first channel repeated transmission based on the selected SSB and the SSB-RSRP threshold corresponding to the SSB.

[0140] Those skilled in the art will appreciate that various aspects of the present disclosure may be implemented as systems, methods or program products. Therefore, various aspects of the present disclosure may be specifically implemented in the following forms, namely: complete hardware implementation, complete software implementation (including firmware, microcode, etc.), or a combination of hardware and software, which may be collectively referred to herein as "circuits", "modules" or "systems".

[0141] Refer to the following Fig.11 1100 according to this embodiment of the present disclosure is described. Fig.11 The electronic device 1100 shown is merely an example and should not bring any limitation to the functions and scope of use of the embodiments of the present disclosure.

[0142] like Fig.11 As shown, the electronic device 1100 is in the form of a general 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 the storage unit 1120 and the processing unit 1110).

[0143] The storage unit stores program codes, which can be executed by the processing unit 1110, so that the processing unit 1110 executes the steps described in the above “exemplary method” section of this specification according to various exemplary embodiments of the present disclosure.

[0144] For example, the processing unit 1110 can execute the following steps of the above method embodiment: sending multiple SSBs; configuring the SSB-RSRP threshold for each SSB so that the terminal device determines whether to repeat the first channel transmission based on the selected SSB and the SSB-RSRP threshold corresponding to the SSB.

[0145] In one embodiment, the processing unit 1110 can perform the following steps of the above method embodiment: select an SSB, where the 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; determine whether to repeat the transmission of the first channel based on the selected SSB and the SSB-RSRP threshold corresponding to the SSB.

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

[0147] The 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: an operating system, one or more application programs, other program modules, and program data, each of which or some combination may include an implementation of a network environment.

[0148] Bus 1130 may represent one or more of several types of bus structures, including a memory unit bus or memory unit controller, a peripheral bus, an accelerated graphics port, a processing unit, or a local bus using any of a variety of bus architectures.

[0149] The electronic device 1100 may also communicate with one or more external devices 1140 (e.g., keyboards, pointing devices, Bluetooth devices, etc.), may also communicate with one or more devices that enable a user to interact with the electronic device 1100, and / or communicate with any device that enables the electronic device 1100 to communicate with one or more other computing devices (e.g., routers, modems, etc.). Such communication may be performed via an input / output (I / O) interface 1150. Furthermore, the electronic device 1100 may also communicate with one or more networks (e.g., local area networks (LANs), wide area networks (WANs), and / or public networks, such as the Internet) via a network adapter 1160. As shown, the network adapter 1160 communicates with other modules of the electronic device 1100 via a bus 1130. It should be understood that, although not shown in the figure, other hardware and / or software modules may be used in conjunction with the 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] Through the description of the above implementation, it is easy for those skilled in the art to understand that the example implementation described here can be implemented by software, or by software combined with necessary hardware. Therefore, the technical solution according to the implementation of the present disclosure can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash drive, a mobile hard disk, etc.) or on a network, including several instructions to enable a computing device (which can be a personal computer, a server, a terminal device, or a network device, etc.) to execute the method according to the implementation of the present disclosure.

[0151] In an exemplary embodiment of the present disclosure, a computer-readable storage medium is also provided, which may be a readable signal medium or a readable storage medium. A program product capable of implementing the above method of the present disclosure is stored on the computer-readable storage medium. In some possible implementations, various aspects of the present disclosure may also be implemented in the form of a program product, which includes a program code, and when the program product is run on a user terminal, the program code is used to enable the user terminal to execute the steps according to various exemplary implementations of the present disclosure described in the above “Exemplary Method” section of this specification.

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

[0153] In the present disclosure, a computer readable storage medium may include a data signal propagated in baseband or as part of a carrier wave, wherein a readable program code is carried. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. A readable signal medium may also be any readable medium other than a readable storage medium, which may send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device.

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

[0155] In a specific implementation, the program code for performing the operations of the present disclosure may be written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Java, C++, etc., and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user computing device, partially on the user device, as a separate software package, partially on the user computing device and partially on a remote computing device, or entirely on a remote computing device or server. In the case of a remote computing device, the remote computing device may be connected to the user computing device through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computing device (e.g., using an Internet service provider to connect through the Internet).

[0156] It should be noted that, although several modules or units of the device for action execution are mentioned in the above detailed description, this division is not mandatory. In fact, according to the embodiments of the present disclosure, the features and functions of two or more modules or units described above can be embodied in one module or unit. On the contrary, the features and functions of one module or unit described above can be further divided into multiple modules or units to be embodied.

[0157] In addition, although the steps of the method in the present disclosure are described in a specific order in the drawings, this does not require or imply that the steps must be performed in this specific order, or that all the steps shown must be performed to achieve the desired results. Additionally or alternatively, some steps may be omitted, multiple steps may be combined into one step, and / or one step may be decomposed into multiple steps, etc.

[0158] Through the description of the above implementation, it is easy for those skilled in the art to understand that the example implementation described here can be implemented by software, or by software combined with necessary hardware. Therefore, the technical solution according to the implementation of the present disclosure can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash drive, a mobile hard disk, etc.) or on a network, including several instructions to enable a computing device (which can be a personal computer, a server, a mobile terminal, or a network device, etc.) to execute the method according to the implementation of the present disclosure.

[0159] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. The present disclosure is intended to cover any variations, uses or adaptations of the present disclosure, which follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The description and examples are intended to be exemplary only, and the true scope and spirit of the present disclosure are indicated by the appended claims.

Claims

1. A repeated transmission method, applied to a network device, characterized in that: include: Sending multiple synchronization signal blocks SSB; A synchronization signal block reference signal received power SSB-RSRP threshold is configured for each SSB so that the terminal device determines whether to perform first channel repeated transmission based on the selected SSB and the SSB-RSRP threshold corresponding to the SSB.

2. The repeated transmission method according to claim 1, characterized in that: The configuring of the SSB-RSRP threshold for each SSB includes: One or more SSB-RSRP thresholds are configured for each SSB.

3. The repeated transmission method according to claim 1, characterized in that: The configuring of the SSB-RSRP threshold for each SSB includes: The SSBs are divided into multiple groups, and one or more SSB-RSRP thresholds are configured for each SSB group, wherein the SSBs within an SSB group correspond to one or more SSB-RSRP thresholds.

4. The repeated transmission method according to any one of claims 1 to 3, characterized in that: The first channel includes a physical random access channel PRACH or a message 3Msg3 physical uplink shared channel PUSCH.

5. A repeated transmission method, applied to a terminal device, characterized in that: include: Selecting an SSB, wherein the SSB is one of a plurality of SSBs sent by a network device, and an SSB-RSRP threshold corresponding to each SSB is configured by the network device; Determine whether to perform first channel repeated transmission according to the selected SSB and the SSB-RSRP threshold corresponding to the SSB.

6. The repeated transmission method according to claim 5, characterized in that: The determining whether to perform repeated transmission of the first channel according to the selected SSB and the SSB-RSRP threshold corresponding to the SSB includes: Perform 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 belongs, it is determined that the terminal device performs first channel repeated transmission.

7. The repeated transmission method according to claim 6, characterized in that: The method further comprises: The number of times the first channel is repeatedly transmitted is determined according to the SSB-RSRP threshold corresponding to the SSB.

8. The repeated transmission method according to claim 6, characterized in that: The method further comprises: 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 is located, the terminal device performs a single transmission on the first channel.

9. The repeated transmission method according to any one of claims 5 to 8, characterized in that: The first channel includes PRACH or Msg3 PUSCH.

10. A repeated transmission device, characterized in that: Applied to network equipment, including: Beam transmission module, used for transmitting multiple SSBs; The threshold configuration module is used to configure the SSB-RSRP threshold for each SSB so that the terminal device determines whether to perform first channel repeated transmission based on the selected SSB and the SSB-RSRP threshold corresponding to the SSB.

11. A repeated transmission device, applied to a terminal device, characterized in that: include: An SSB selection module, configured to select an SSB, wherein the SSB is one of a plurality of SSBs sent by a network device, and an SSB-RSRP corresponding to each SSB is configured by the network device; The repeated transmission determination module is used to determine whether to perform repeated transmission of the first channel according to the selected SSB and the SSB-RSRP threshold corresponding to the SSB.

12. A communication system, comprising a network device and a terminal device, characterized in that: The network device is used to send multiple SSBs; configure an SSB-RSRP threshold for each SSB; The terminal device 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; Determine whether to perform first channel repeated transmission according to the selected SSB and the SSB-RSRP threshold corresponding to the SSB.

13. An electronic device, characterized in that: include: processor; as well as A memory, configured to store executable instructions of the processor; The processor is configured to execute the repeated transmission method described in any one of claims 1 to 4, or execute the repeated transmission method described in any one of claims 5 to 9 by executing the executable instructions.

14. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, it implements the repeated transmission method described in any one of claims 1 to 4, or implements the repeated transmission method described in any one of claims 5 to 9.

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