Signal transmission method, signal reception method, computer program, and electronic device

Abstract

Embodiments of the present disclosure provide a signal transmission method and apparatus, a signal reception method and apparatus, a storage medium, and an electronic device, including: determining a plurality of target beams; and transmitting a random access signal to a first node based on resources respectively corresponding to the plurality of target beams. According to the present disclosure, the technical problem in the related art that a random access signal can only be transmitted by a resource corresponding to a single beam in a random access process is solved, and further, the technical effect that a random access signal can be transmitted by resources respectively corresponding to a plurality of beams is achieved, meeting communication requirements such as extremely low latency, extremely high reliability, ultra-wide bandwidth, and massive access.

Description

Technical Field

[0001] (Cross - reference to related applications) This disclosure claims priority based on Chinese Patent Application No. CN202210591041.7, titled "Signal Transmission Method and Apparatus, Signal Reception Method and Apparatus", filed on May 27, 2022, and all of its disclosure content is incorporated herein by reference.

[0002] Embodiments of the present disclosure relate to the field of communications, and specifically, to a signal transmission method and apparatus, a signal reception method and apparatus, a storage medium, and an electronic device.

Background Art

[0003] The large-scale commercialization of the 5th Generation Mobile Communication System (abbreviated as 5G), namely New Radio (abbreviated as NR), is promoting the transformation of the economic society towards digitalization, networking, and intelligentization, and driving the network into a new era where everything is interconnected. Due to the rapidly emerging application demands in areas such as smart cities, intelligent transportation, and intelligent industrial production, the development trends of differentiation in the capabilities of network devices, diversification of network functions, and intelligentization of network management and control continue, further accelerating the arrival of the 6th Generation Mobile Communication System (abbreviated as 6G) that intelligently interconnects everything. In typical application scenarios of 6G represented by smart cities, intelligent transportation, and smart homes, there are a large number of smart automation devices with highly differentiated capabilities, so the communication demands in aspects such as extremely low latency, extremely high reliability, extremely large bandwidth, and a large number of accesses are becoming increasingly stringent, and intelligent automation types of applications also put forward requirements for high precision and high resolution in terms of sensing capabilities. On the one hand, the rapid increase in the quantity of wireless communication and sensing devices has made the contradiction between the unlimited increase in service demands and limited wireless resources and computing power become increasingly prominent. On the other hand, the realization of the 6G vision requires hierarchical distributed closed-loop information stream processing by obtaining environmental sensing information, information exchange and sharing, intelligent information processing, and control information (including control information for communication networks and control commands for application execution devices).

[0004] In the related art, in the fifth-generation mobile communication system New Radio, in the random access process, a terminal selects only a random access channel (abbreviated as Physical Random Access Channel, PRACH) resource corresponding to one beam direction to transmit a random access signal (preamble) and starts the random access process. In this way, if the performance of the UE is limited, the PRACH resources are limited, or the number of UEs selecting the same beam direction is too large, the preamble sequences in the same beam direction will collide, and furthermore, the UE may not be able to access the system normally, or the access delay of the UE will increase. Therefore, the random access method cannot meet the communication requirements in aspects such as extremely low latency, extremely high reliability, extremely large bandwidth, and a large number of accesses, which constantly emerge in the post-5G / 6G era.

[0005] As can be seen from this, in the related art, a terminal can only select a random access channel resource corresponding to one beam direction to transmit a random access signal. In this way, the performance of the UE is limited, and the UE may not be able to access the system normally, or the access delay of the UE increases, thereby being unable to meet the communication requirements in aspects such as extremely low latency, extremely high reliability, extremely large bandwidth, and a large number of accesses. Currently, no effective solution has been proposed for the above problems existing in the related art.

Summary of the Invention

Problems to be Solved by the Invention

[0006] Embodiments of the present disclosure provide a signal transmission method and apparatus, a signal reception method and apparatus, a storage medium, and an electronic device to solve at least the technical problem in the related art that in the random access process, a random access signal can only be transmitted by a resource corresponding to a single beam.

Means for Solving the Problems

[0007] According to an embodiment of the present disclosure, there is provided a method for transmitting a signal, including: determining a plurality of target beams; and transmitting a random access signal to a first node based on resources respectively corresponding to the plurality of target beams.

[0008] According to an embodiment of the present disclosure, there is provided a method for receiving a signal, including: receiving a random access signal transmitted by a second node on a resource respectively corresponding to a plurality of target beams, where the plurality of target beams are beams determined by the second node.

[0009] According to another embodiment of the present disclosure, there is provided a signal transmitting apparatus, including: a first determination module configured to determine a plurality of target beams; and a first transmission module configured to transmit a random access signal to a first node based on resources respectively corresponding to the plurality of target beams.

[0010] According to another embodiment of the present disclosure, there is provided a signal receiving apparatus, including: a third receiving module configured to receive a random access signal transmitted by a second node on a resource respectively corresponding to a plurality of target beams, where the plurality of target beams are beams determined by the second node.

[0011] According to still another embodiment of the present disclosure, there is further provided a computer-readable storage medium storing a computer program, where the computer program is configured to execute the steps in the embodiments of any of the above methods when executed.

[0012] According to still another embodiment of the present disclosure, there is further provided an electronic device, including: a memory storing a computer program; and a processor configured to execute the computer program to execute the steps in the embodiments of any of the above methods.

Brief Description of the Drawings

[0013]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Modes for Carrying Out the Invention

[0014] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings and by way of examples.

[0015] Note that terms such as "first" and "second" in the specification, claims, and the above drawings of the present disclosure are not used to describe a specific order or sequence, but are used to distinguish similar objects.

[0016] Embodiments of the method according to the embodiments of the present disclosure can be executed on a mobile terminal, a computer terminal, or a similar computing device. Taking the execution on a mobile terminal as an example, FIG. 1 is a hardware configuration block diagram of a mobile terminal for a signal transmission method according to an embodiment of the present disclosure. As shown in FIG. 1, the mobile terminal may include one or more (only one is shown in FIG. 1) processors 102 (the processor 102 includes, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104 for storing data. The mobile terminal may further include a transmission device 106 and an input / output device 108 for communication functions. As can be understood by those skilled in the art, the configuration shown in FIG. 1 is merely schematic and does not limit the configuration of the mobile terminal. For example, the mobile terminal may further include more or fewer components than those shown in FIG. 1, or may have an arrangement different from that shown in FIG. 1.

[0017] The memory 104 may store a computer program, for example, an application software program and modules such as a computer program corresponding to the signal transmission method in the embodiments of the present disclosure. The processor 102 may execute the computer program stored in the memory 104 to perform various functional applications and data processing, that is, to implement the above method. The memory 104 may include a high-speed random access memory, and may further include, for example, one or more magnetic storage devices, flash memories, or other non-volatile solid memories. In some examples, the memory 104 may further include a memory remotely installed with respect to the processor 102, and these remote memories may be connected to the mobile terminal via a network. Examples of the above network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0018] The transmission device 106 transmits and receives data via one network. As a specific example of the above network, it may include a wireless network provided by a mobile terminal communication carrier. In one example, the transmission device 106 includes a network adapter (abbreviated as Network Interface Controller, NIC) that is connected to other network devices via a base station and can communicate with the Internet. In one example, the transmission device 106 may be a radio frequency (RF) module that communicates with the Internet in a wireless manner.

[0019] In this embodiment, a signal transmission method is provided. FIG. 2 is a flowchart of the signal transmission method according to the embodiment of the present disclosure. As shown in FIG. 2, the flow includes the following steps S202 and S204.

[0020] In step S202, a plurality of target beams are determined. In step S204, a random access signal is transmitted to the first node based on the resources corresponding to the plurality of target beams respectively.

[0021] The execution entity of the above steps may be a device having signal transmission and reception capabilities, such as a terminal device, a processor or a processing module in the terminal device, or other processing devices or processing units having similar processing capabilities. The above first node may be a base station, or a specific module in the base station, or other network nodes that can communicate with the base station. The above random access signal may be called Message 1, that is, Msg1.

[0022] Hereinafter, an example will be given in which a terminal device (i.e., UE) executes the above operations (which is only an exemplary description, and other devices or modules may execute the above operations in actual operations). First, the related technology according to the embodiment of the present disclosure will be described.

[0023] In an embodiment of the present disclosure, the beam may be represented by a determined resource set, and the resource set may include at least one of transmit precoding, receive precoding, transmit antenna port setting, transmit antenna weight vector, transmit antenna weight matrix, receive antenna port setting, receive antenna weight vector, receive antenna weight matrix, determined time-domain resource and / or frequency-domain resource and / or code sub-resource. Therefore, the beam index may be replaced by a resource index. The beam may be a transmission (transmission / reception) mode, and the transmission mode may include spatial division multiplexing, frequency domain and / or time domain diversity, etc.

[0024] In a preferred embodiment, the beam includes at least one of a transmit beam, a receive beam, precoding, a precoding matrix, a precoding matrix index, a pair of a receive beam and a transmit beam, and a pair of a transmit beam and a receive beam.

[0025] In a preferred embodiment, when the transmission mode of the second channel / signal / resource refers to or uses the transmit beam used by the first channel / signal / resource, it can be said that the second channel and the first channel use the same transmit beam, and the transmit beam of the first channel / signal / resource is represented by the determined resource set.

[0026] In a preferred embodiment, when the reception mode of the second channel / signal / resource refers to or uses the receive beam used by the first channel / signal / resource, it can be said that the second channel and the first channel use the same receive beam, and the receive beam of the first channel / signal / resource is represented by the determined resource set.

[0027] In a preferred embodiment, one target beam corresponds to one beam direction, and multiple target beams can correspond to the same beam direction or different beam directions.

[0028] In the above embodiment, a plurality of target beams can be determined, and further, a random access signal can be transmitted to the first node based on resources respectively corresponding to the plurality of target beams. In this way, it is possible to realize transmitting a random access signal to the first node by using resources capable of transmitting a random access signal respectively corresponding to the plurality of target beams. When a failure occurs when only resources corresponding to a single beam are used, the situation where a random access signal cannot be transmitted to the first node can be avoided, and the technical problem existing in the related art that a random access signal can only be transmitted by resources corresponding to a single beam in the random access process is solved, and the technical effect that a random access signal can be transmitted by resources respectively corresponding to a plurality of beams is achieved, satisfying communication requirements such as extremely low latency, extremely high reliability, ultra-wide bandwidth, and massive access.

[0029] In an exemplary embodiment, the step of determining a plurality of target beams includes at least one of the following steps: detecting a downlink channel and selecting the plurality of target beams based on the detection result; measuring a downlink signal and selecting the plurality of target beams based on the measurement result; selecting the plurality of target beams from the stored beams; acquiring the plurality of target beams from the plurality of beams set by the first node; selecting a target resource group from the set plurality of resource groups and selecting the plurality of target beams from the plurality of beams corresponding to the target resource group. In this embodiment, the target resource group may include a PRACH time-frequency resource and / or a preamble resource on the PRACH. When selecting the plurality of target beams from the plurality of beams corresponding to the target resource group, the number of beams corresponding to the target resource group is larger, and further, a plurality of the target beams can be selected therefrom. The beams corresponding to the target resource group may be preset. When determining the plurality of target beams, the downlink channel is detected or measured, and further, based on the detection result or the measurement result, the target beams corresponding to one or more downlink beams can be selected. For example, when four downlink beams are selected based on the detection result or the measurement result, the UE can select, as the target beams, the uplink beams corresponding to two of the four downlink beams based on the correspondence between the uplink beam and the downlink beam (the correspondence may be predefined, or may be notified by signaling, or may be by negotiation between the UE and the base station side, etc.). Also, when determining the target beams by acquiring the plurality of target beams from the plurality of beams set by the first node, the first node may preset more beams, and then the UE may select the plurality of target beams from the more beams.

[0030] In an exemplary embodiment, based on resources corresponding to each of the plurality of target beams, the step of transmitting a random access signal from a first node includes: determining a transmission power for transmitting the random access signal in the target beam; based on the transmission power, determining a first beam from the plurality of target beams, where the number of the first beams is one or more and is less than or equal to the number of the target beams; and transmitting the random access signal on a resource corresponding to the first beam. In this embodiment, it is necessary to determine the first beam based on the transmission power. Additionally, the first beam may be one or more beams selected from the target beams according to a specific selection method (for example, the priority preset for the beam, the usage frequency of the beam, etc.). Of course, the first beam may also be one or more beams randomly selected from the target beams, and the number of the first beams may also be adjusted based on the actual situation. It should be noted that the above selection method of the first beam is merely exemplary, and the first beam is not limited to the above selection method.

[0031] In an exemplary embodiment, based on the transmission power, the step of determining a first beam from the plurality of target beams includes determining, as the first beam, a corresponding target beam for which the transmission power is less than or equal to a first threshold. In this embodiment, the first threshold may be a preset value, or may be set as the maximum transmission power supported by the first node or the maximum transmission power set for the first node. All corresponding target beams for which the transmission power is less than or equal to the first threshold may be determined as the first beam, or a part of the target beams for which the transmission power is less than or equal to the first threshold may be determined as the first beam. It should be noted that the setting of the first threshold can be flexibly adjusted according to the actual application situation.

[0032] In an exemplary embodiment, after the step of sending a random access signal to a first node based on resources respectively corresponding to the plurality of target beams, the method includes: obtaining a first response message sent by the first node; and sending an uplink message to the first node based on an uplink channel resource set by the uplink channel configuration information in the first response message, where the uplink message includes at least one of first indication information indicating whether to use a first valid beam and identification information of a second node that sends the uplink message, the first valid beam is a target beam for the random access signal corresponding to the first response message, and the beam corresponding to the first response message is a second valid beam. In this embodiment, the first response message (or the second message, i.e., the message called Msg2) is replied by the first node based on the reception of the random access signal sent by the second node, that is, the first response message is a response message of the random access signal, and there is a corresponding relationship between the first valid beam and the second valid beam. For example, one first valid beam can correspond to one second valid beam, and the uplink message is also called the third message, i.e., Msg3.

[0033] In an exemplary embodiment, after the step of sending an uplink message to the first node, the method further includes, when the first node determines, based on first indication information in the received uplink message, that the second node will no longer use the first effective beam, ending the step of sending a second response message, which is a response message to the uplink message, to the second node on a resource corresponding to the second effective beam; and when the first node determines, based on the first indication information in the received uplink message, that the second node will use the first effective beam, sending the second response message to the second node on a resource corresponding to the second effective beam. In this embodiment, when the first node determines that the received uplink message does not include the first indication information, the first node sends the second response message to the second node on a resource corresponding to the second effective beam.

[0034] In an exemplary embodiment, after the step of sending an uplink message to the first node, the method includes the step of the first node receiving the uplink message, and when the first indication information included in at least one of the uplink messages received within one time window by the first node indicates that the first effective beam is no longer used, the first node selects at least one first effective beam from the first effective beams that are no longer used indicated by the second node, and continues to send a second response message, which is a response message to the uplink message, to the second node on a resource corresponding to a second effective beam corresponding to the selected at least one first effective beam.In this embodiment, in the random access process, the uplink message is scheduled by the information packet of the first response message. However, the information packet of the first response message only contains the index information of the random access signal. At the same time, since the random access signal can be common to the terminals using the same beam, it cannot be guaranteed that only one terminal uses one beam to transmit the uplink message. That is, there may be a case where multiple terminals use the same beam to transmit the uplink message. Since the uplink messages collide when multiple terminals use the same beam, the base station may not detect the uplink message of the beam, and conversely, to avoid detecting the uplink message of the beam abandoned by the terminal and to guarantee the random access flow, the base station can modify the decision of the terminal, that is, still select at least one first effective beam from the first effective beams that become unused indicated by the second node at the first node to complete the random access flow. Also, when multiple terminals use the same beam to transmit the uplink message, the delay of transmitting the uplink message may increase. Since the delay of transmitting the uplink message increases when multiple terminals use the same beam, the base station may not detect the uplink message of the beam, and conversely, to avoid detecting the uplink message of the beam abandoned by the terminal and to guarantee the random access flow, the base station can modify the decision of the terminal, that is, still select at least one first effective beam from the first effective beams that become unused indicated by the second node to complete the random access flow.

[0035] In an exemplary embodiment, after the step of transmitting an uplink message to the first node, the method includes, on a resource corresponding to a second effective beam corresponding to the first effective beam that is shown as unused: if a target downlink channel transmitted from the first node to the second node is not received, confirming to abandon the use of the first effective beam; if a target downlink channel transmitted from the first node to the second node is received on a resource corresponding to a second effective beam corresponding to the first effective beam that is shown as unused, and the control information in the target downlink channel includes confirmation information that the first effective beam is not used, confirming not to continue detecting the target downlink channel on the resource corresponding to the second effective beam corresponding to the first effective beam; if a target downlink channel transmitted by the first node is received on a resource corresponding to a second effective beam corresponding to the first effective beam that is shown as unused, and the control information in the target downlink channel includes information that the first effective beam is used, continuing to detect the second response message based on the scheduling information of the second response message in the target downlink channel; if a target downlink channel transmitted by the first node is received on a resource corresponding to a second effective beam corresponding to the first effective beam that is shown as unused, and the control information in the target downlink channel includes the scheduling information of the second response message in an active state, continuing to detect the second response message based on the scheduling information. The method further includes at least one of the above steps.In this embodiment, when it is shown that the target downlink channel transmitted from the base station is not received on the resource corresponding to the second effective beam corresponding to the first effective beam that is not used, based on this situation, the terminal abandons the use of the first effective beam. When the target downlink channel transmitted from the base station is received on the resource corresponding to the second effective beam corresponding to the first effective beam that is shown to be unused, and the control information in the target downlink channel includes confirmation information that the first effective beam is not used, based on this situation, the terminal confirms not to continue detecting the target downlink channel on the resource corresponding to the second effective beam corresponding to the first effective beam. When the target downlink channel transmitted from the base station is received on the resource corresponding to the second effective beam corresponding to the first effective beam that is shown to be unused, and the control information in the target downlink channel includes information that the first effective beam is used, based on this situation, the terminal continues to detect the second response message based on the scheduling information of the second response message in the target downlink channel. When the target downlink channel transmitted from the base station is received on the resource corresponding to the second effective beam corresponding to the first effective beam that is shown to be unused, and the control information in the target downlink channel includes the scheduling information of the second response message in an effective state, based on this situation, the terminal continues to detect the second response message based on the scheduling information.

[0036] In an exemplary embodiment, based on the uplink channel resource set by the uplink channel setting information in the first response message, the step of sending an uplink message to the first node includes: selecting one or more first response messages from the obtained first response message; and sending the uplink message to the first node by the uplink channel resource set by the uplink channel setting information in the selected first response message. In this embodiment, the information packet of the first response message does not necessarily have to be carried in one first response message and may be distributed among multiple first response messages. Therefore, an uplink channel resource set by the uplink channel setting information of one or more first response messages may be selected from the obtained first response messages, and an uplink message may be sent to the base station. Optionally, when sending an uplink message, it may be implemented as follows. Select a predetermined number of first beams from the beams that received the random access signal, and send the uplink message to the first node using the resources corresponding to the first beams. That is, the UE may selectively send Msg3 (i.e., the uplink message) corresponding to some beams.

[0037] In an exemplary embodiment, the step of transmitting an uplink message to the first node includes determining an uplink message that does not need to be transmitted on the resource corresponding to the first effective beam when at least one of the following rules is satisfied: transmitting an uplink message whose transmission power on the resource corresponding to the first effective beam exceeds a second threshold; the set resource size of the uplink message not meeting a first requirement; the channel quality performance of the received first response message not meeting a second requirement; and transmitting other uplink messages other than the uplink message that does not need to be transmitted to the first node. In this embodiment, the second threshold may be a preset value, or may be set as the maximum transmission power supported by the first node or the maximum transmission power set for the first node. When transmitting an uplink message whose transmission power on the resource corresponding to the first effective beam exceeds the second threshold, the uplink message that does not need to be transmitted on the resource corresponding to the first effective beam can be determined. Also, the first requirement may be bandwidth, data access volume, etc., and the second requirement may be delay, reliability, efficiency, etc. It should be noted that the examples of the second threshold, the first requirement, and the second requirement are merely exemplary, and the second threshold, the first requirement, and the second requirement are not limited to the above examples.

[0038] In an exemplary embodiment, after the step of sending an uplink message to the first node, the method further includes receiving a target downlink channel transmitted from the first node, and determining whether to continue using the first effective beam based on the target downlink channel. If the target downlink channel indicates that the first effective beam should not be continued to be used, the method does not continue to detect a second response message that is a response message to the uplink message. If the target downlink channel indicates that the first effective beam needs to be continued to be used, the method continues to detect the second response message. In this embodiment, instead of directly instructing the second node through the target downlink channel not to continue using the first effective beam, by obtaining the indication information included in the resource allocation information of the second response message, when it is determined that the resource allocation information of the second response message is in a valid state by instructing the second node to decode the control information included in the target downlink channel, the first node determines to instruct the second node to continue using the first effective beam.

[0039] In an exemplary embodiment, the step of obtaining the first response message returned by the first node based on the received random access signal includes, after the random access signal is transmitted, detecting a target downlink channel transmitted by the first node within a target time window, where the target control information of the target downlink channel carries scheduling information of the first response message; and detecting and receiving the first response message based on the scheduling information of the first response message. After the step of obtaining the first response message returned by the first node based on the received random access signal, the method further includes ending the continuous detection of the target downlink channel within the target time window. In this embodiment, since the information packet of the first response message may be carried in a plurality of first response messages within the time window, the information packet of one first response message includes at least index information of one random access signal, and the index information indicates that the information packet corresponds to the random access signal corresponding to the index information.

[0040] In this embodiment, a signal receiving method is further provided. FIG. 3 is a flowchart of the signal receiving method according to an embodiment of the present disclosure. As shown in FIG. 3, the flow includes the following step S302.

[0041] In step S302, a random access signal transmitted by a second node is received on a resource corresponding to each of a plurality of target beams, and the plurality of target beams are beams determined by the second node.

[0042] The entity executing the above steps may be the aforementioned first node, which may be a device with signal transmission and reception capabilities, such as a base station, or a module in the base station, or a network node capable of data transmission with the base station, or other processing devices or processing units with similar processing capabilities. Hereinafter, taking the base station executing the above operations as an example (which is only an illustrative explanation, and in actual operations, other devices or modules may execute the above operations), the second node is the aforementioned UE.

[0043] In the above embodiment, the second node can determine a plurality of target beams, and further transmit a random access signal to the first node based on the resources corresponding to each of the plurality of target beams. In this way, it is possible to realize transmitting a random access signal to the first node using the resources capable of transmitting a random access signal corresponding to each of the plurality of target beams. When a failure occurs when only using the resources corresponding to a single beam, the situation where the first node cannot transmit a random access signal can be avoided, solving the technical problem in the related art that a random access signal can only be transmitted by the resources corresponding to a single beam in the random access process, achieving the technical effect that a random access signal can be transmitted by the resources corresponding to a plurality of beams respectively, and meeting communication requirements such as extremely low latency, extremely high reliability, ultra-wide bandwidth, and massive access.

[0044] In the above embodiment, the plurality of target beams may be the optimal beams determined by the second node from a plurality of beams, or may be the beams arbitrarily determined by the second node from a plurality of beams.

[0045] In an exemplary embodiment, the plurality of target beams are determined by the second node in at least one of the following ways: measuring a downlink signal and selecting the plurality of target beams based on the measurement results; selecting the plurality of target beams from the stored beams; obtaining the plurality of target beams from a plurality of beams set by the first node; and selecting a target resource group from the set plurality of resource groups and selecting the plurality of target beams from the plurality of beams corresponding to the target resource group.

[0046] In an exemplary embodiment, the step of receiving, by the second node, a random access signal transmitted on a resource corresponding to each of the plurality of target beams includes the step of receiving, on a resource corresponding to the first beam, the random access signal transmitted by the second node, where the first beam is determined by the second node in such a way that the transmission power of transmitting the random access signal on the target beam is determined, and the first beam is determined from the plurality of target beams based on the transmission power, the number of the first beams being one or more and less than or equal to the number of the target beams.

[0047] In an exemplary embodiment, the second node realizes determining the first beam from the plurality of target beams based on the transmission power in such a way that the corresponding target beam with the transmission power less than or equal to the first threshold is determined as the first beam.

[0048] In an exemplary embodiment, after the step of receiving, by a second node, a random access signal transmitted on a resource corresponding to a plurality of target beams respectively, the method further includes the step of replying, based on the received random access signal, a first response message to the second node, where the first response message is for instructing the second node to reply an uplink message based on an uplink channel resource set by uplink channel setting information in the first response message. The uplink message includes at least one of first indication information indicating whether to use a first effective beam and identification information of the second node transmitting the uplink message. The first effective beam is a target beam for the random access signal corresponding to the first response message, and the beam corresponding to the first response message is a second effective beam.

[0049] In an exemplary embodiment, if the second node determines not to use the first effective beam based on the first indication information in the received uplink message, it ends the process of transmitting a second response message to the second node on the resource corresponding to the second effective beam. If the second node determines to use the first effective beam based on the first indication information in the received uplink message, it transmits a second response message to the second node on the resource corresponding to the second effective beam, and the second response message is a response message to the uplink message.

[0050] In an exemplary embodiment, when receiving the uplink message and the first indication information included in at least one of the uplink messages received within one time window indicates that the first effective beam is no longer used, at least one first effective beam is selected from the first effective beams that are indicated by the second node to be no longer used, and the second node continues to transmit a second response message on a resource corresponding to a second effective beam corresponding to the selected at least one first effective beam, where the second response message is a response message to the uplink message.

[0051] In an exemplary embodiment, the uplink message transmitted by the second node is received on an uplink channel resource set by the uplink channel configuration information in one or more selected first response messages, where the one or more selected first response messages are those selected by the second node from the obtained first response messages. In this embodiment, the information packet of the first response message may be carried by a plurality of first response messages. Further, the base station may receive the uplink message transmitted by selecting the uplink resource set by the uplink channel configuration information in one or more first response messages from the first response messages obtained by the terminal.

[0052] In an exemplary embodiment, a target downlink channel indicating whether the second node continues to use the first effective beam is transmitted to the second node. When it is indicated that the second node does not continue to use the first effective beam, the second node does not continue to detect a second response message that is a response message to the uplink message. When it is indicated that the second node needs to continue to use the first effective beam, the second node continues to detect the second response message.

[0053] Obviously, the above embodiments are only some embodiments of the present disclosure, not all of them. Hereinafter, the present disclosure will be specifically described with reference to specific embodiments.

[0054] In a 5G NR system, a terminal receives a Synchronization Signal / Physical Broadcast Channel Block (abbreviated as SSB) of a TRP (Transmit-Receive Point, a new name for a base station in 5G). The SSB can be transmitted in a multi-beam manner, that is, the SSB information can be transmitted in different beam directions. FIG. 4 is a schematic diagram of different beam directions between a base station and a terminal according to an embodiment of the present disclosure. Then, based on the received SSB, the terminal selects the beam direction corresponding to the SSB, further selects the random access channel resource corresponding to the beam direction, and transmits a random access signal (preamble) on the above PRACH resource to start a random access process. The SSB includes a Primary Synchronization Signal (abbreviated as PSS), a Secondary Synchronization Signal (abbreviated as SSS), and a Physical Broadcast Channel (abbreviated as PBCH).

[0055] Mapping between SSB and PRACH Occasion in a 5G NR system: The SSB is an SS / PBCH block, on which a downlink synchronization signal (including a Primary Synchronization Signal PSS and a Secondary Synchronization Signal SSS) and a PBCH (a Physical Broadcast Channel on which MIB (Management Information Base) information is carried) are carried. In NR, since multiple beam transmissions are supported, the SSB also supports transmissions in multiple beam directions.

[0056] A PRACH Occasion (corresponding time-frequency resource for the transmission period of a PRACH Preamble, abbreviated as RO) is the corresponding time-frequency resource for the transmission period of a PRACH Preamble. At the same time, multiple PRACH Occasions may be included in the frequency domain.

[0057] In the random access process in NR, a correspondence needs to be formed between a PRACH occasion and an SSB, that is, one PRACH Occasion may correspond to one SSB or multiple SSBs, and these are all set by the base station.

[0058] Technical means 1: In step 1, the UE transmits a random access signal (preamble) on the PRACH time-frequency resource (i.e., the aforementioned PRACH occasion) corresponding to multiple beams, which is called the transmission of a Msg1 message (corresponding to the above random access signal).

[0059] The beam direction selected by the UE can be obtained in at least one of the following ways. In Method 1, the UE measures / detects Downlink signals / channels (the Downlink signals / channels may be transmitted in different beams directions), and further determines a plurality of beams directions selected by the UE. The UE compares with a threshold based on the result of measuring / detecting the Downlink signals / channels, and determines the number of beams directions selected by the UE according to the following method. When the number of beams satisfying the threshold requirement is N or more, N of them (the N beams directions may be the optimal N among RSRP (Reference Signal Receiving Power), RSRQ (Reference Signal Receiving Quality), RSSI (Reference Signal Strength Indicator), SNR (Signal-to-Noise-Ratio), or any N) are selected. Otherwise, all beams satisfying the threshold requirement are taken as the selected beams directions. Satisfying the threshold requirement includes that information such as RSRP / RSRQ / RSSI / SNR for measuring / detecting the Downlink signals / channels is not less than the threshold.

[0060] In Method 2, the UE selects N beams directions by itself. The N beams directions may be N beams directions stored in the UE, or N beams directions used when the UE previously accessed the system.

[0061] In Method 3, the TPR sets N beams directions for the UE according to DL information. In method 4, when configuring PRACH resources, the PRACH resources (including PRACH time-frequency resources and / or preamble resources on PRACH) are grouped, and the PRACH resources of each group can support Msg1 transmission in multiple beam directions. When the UE selects one group of PRACH resources, it transmits Msg1 on M beams corresponding to the PRACH resources of this group.

[0062] In step 1-1, after the UE determines the beams according to step 1 above, if the transmission power required for the UE to transmit Msg1 in the beam direction exceeds the threshold, the beam is not used for Msg1 transmission.

[0063] In step 2, the TRP transmits response information of Msg1 to the UE, and this response information is called Msg2 (corresponding to the first response information above). The scheduling information of Msg2 is carried in the downlink control information (abbreviated as DCI) in the physical downlink control channel (abbreviated as PDCCH). Msg2 is transmitted by being carried on the PDSCH (physical downlink shared channel). Msg2 includes one or more information packets, and the information packets include at least one preamble index information. The preamble index information is for indicating that the information packet is a response to the preamble of the index information.

[0064] In step 3, after the UE sends Msg1, within one time window, the UE detects the PDCCH where the scheduling information of Msg2 sent from the TRP is located, and further detects Msg2 based on the scheduling information carried in the DCI in the detected PDCCH. Assume that the UE has detected K (where K is less than or equal to M) Msg2s out of the M beams sent from the TRP to itself (since the TRP may not be able to detect all the preambles of the M beams, here K is used to represent Msg2). For example, the index information of the K preambles in the information packets of the K Msg2s (the information packets of the K Msg2s are not necessarily carried in one Msg2 and may be distributed among multiple Msg2s in the above time window) are all sent by the UE. Further, the information packets of the K Msg2s further include resource allocation information for the PUSCH (Physical Uplink Shared Channel) channel for the UE to transmit uplink messages, and the uplink message is called Msg3.

[0065] In step 4, the UE transmits K1 Msg3 messages through the PUSCH channel indicated by the information packets of the K Msg2s. The Msg3 message (1) includes at least one of the first indication information indicating that the UE continues to use the beams direction, and (2) the identification information of the UE. The number of K1 is less than or equal to K. When the UE transmits Msg3, if the transmission power exceeds the threshold, the Msg3 is not transmitted, and the corresponding beam direction is also abandoned by the UE.

[0066] In step 5, after receiving the Msg3 message sent by the UE, the TRP performs the following operations.

[0067] If Msg3 indicates that the UE does not use the beams direction, the TRP does not continue to send Msg4 (corresponding to the second response message above), which is the response message of Msg3 in the beams direction, to the UE. Msg4 is carried on the PDSCH scheduled by the PDCCH, If Msg3 indicates that the UE continues to use the beams direction or if the first indication information is not present in Msg3, the TRP continues to send Msg4, which is the response information of Msg3, to the UE.

[0068] Technical means 2: This technical means extends step 5 in technical means 1.

[0069] The extension of step 5 is as follows. In step 5, after receiving the Msg3 message sent by the UE, the TRP performs the following operations.

[0070] The TRP sends a PDCCH to the UE and indicates in the DCI whether to abandon the beams direction. If the DCI instructs the UE to abandon the beams direction, the UE does not continue to detect subsequent Msg4 information. If the DCI instructs the UE to continue using the beams direction, the UE continues to detect subsequent Msg4 information. If the DCI does not instruct the UE to continue using the beams direction, the TRP obtains the indication information included in the resource allocation information of Msg4, that is, when it is determined that the resource allocation information of Msg4 is a valid value by instructing the UE to decode the DCI, the TRP determines to instruct the UE to continue using the beams direction.

[0071] Technical means 3: This technical means extends step 5 in technical means 1.

[0072] The extension of step 5 is as follows. In step 5, after receiving the Msg3 message transmitted by the UE, the TRP performs the following operations.

[0073] If the TRP detects the Msg3 message transmitted by the UE only in the unused beams direction indicated by the UE, the TRP continues to transmit the Msg4 message to the UE in the beams direction. That is, in the random access process, although Msg3 is scheduled by the information packet of Msg2, the information packet of Msg2 only contains the preamble index information, and since the preamble can be common to UEs using the same beams, multiple UEs may transmit Msg3 using the same beams, resulting in a collision of Msg3 of multiple UEs, and the TRP may not detect Msg3 in the beams, and conversely, may detect Msg3 in the beams abandoned by the UE. To ensure the random access flow, the TRP can modify the UE's decision, that is, continue to use the beams direction to complete the random access flow.

[0074] In step 6, the UE continues to detect the PDCCH of the response message Msg4 of the K Msg3 messages. If the UE does not receive the PDCCH in the unused beams direction indicated by the UE, the UE performs an operation to confirm to abandon the beams direction. If the UE receives the PDCCH in the unused beams direction indicated by the UE and the DCI in the PDCCH contains confirmation information to confirm that the beams are not used, the UE performs an operation to stop detecting the PDCCH in the beams direction. If the UE receives the PDCCH in the unused beams direction indicated by the UE and the DCI in the PDCCH contains information indicating that the beams continue to be used, the UE performs an operation to continue detecting the Msg4 message based on the PDSCH scheduling information in the PDCCH. If the UE receives a PDCCH in the unused beam directions indicated by the UE, and the DCI in the PDCCH contains PDSCH scheduling information and the PDSCH scheduling information is a valid value, the UE performs one of the following operations: continue to detect the Msg4 message based on the PDSCH scheduling information in the PDCCH.

[0075] Technical means 4: This technical means extends steps 4-5 in technical means 1.

[0076] In step 3 (which is the same as in technical means 1), after the UE sends Msg1, within one time window, the UE detects the PDCCH where the scheduling information of Msg2 sent from the TRP is located, and further detects Msg2 based on the scheduling information carried in the DCI in the detected PDCCH. Assume that the UE has detected K (where K is less than or equal to M) Msg2s for the M beams sent from itself by the TRP (since the TRP may not be able to detect all the preambles of the M beams, here K is used to represent Msg2). For example, the index information of the K preambles in the information packets of the K Msg2s (the information packets of the K Msg2s are not necessarily carried in one Msg2 and may be distributed among multiple Msg2s in the above time window) are all sent from the UE. Further, the information packets of the K Msg2s further contain resource allocation information for the PUSCH channel for the UE to transmit uplink messages, and this uplink message is called Msg3.

[0077] The extension of the above step 4 is as follows. In step 4, the UE receives the information packets of Msg2 in K beam directions, selects K1 beam directions from them, and transmits a Msg3 message. The scheduling information of the Msg3 message is indicated in the information packet of Msg2. When at least one of the following conditions is satisfied, Msg3 in the said beam direction is not transmitted.

[0078] (1) In one beam direction, when the UE transmits Msg3, if the transmission power exceeds the threshold, the said Msg3 is not transmitted. (2) When the size of the Msg3 resource set in the information packet of Msg3 does not meet the UE's requirements, the said Msg3 is not transmitted. (3) For Msg1 of a certain beam, when the channel quality performance of the Msg2 message received by the UE does not meet the requirements, Msg3 corresponding to the said Msg2 is not transmitted.

[0079] The extension of step 5 above is specifically as follows. In step 5, after receiving the Msg3 message transmitted by the UE, the TRP performs the following operations.

[0080] The TRP transmits PDCCH to the UE, and indicates in the DCI whether to abandon the said beam direction. When the DCI instructs the UE to abandon the said beam direction, the UE stops detecting subsequent Msg4 information. When the DCI instructs the UE to continue using the said beam direction, the UE continues to detect subsequent Msg4 information. When the DCI does not instruct the UE to continue using the beam direction, the UE obtains the indication information included in the resource allocation information of Msg4, that is, when it is determined that the DCI is decoded for the UE and the resource allocation information of Msg4 is a valid value, the TRP determines to instruct the UE to continue using the said beam direction.

[0081] Technical means 5: This technical means extends step 3 in technical means 1.

[0082] In step 2 (the same as step 1-2 in technical means 1), the TRP sends response information of Msg1 to the UE, and this response information is called Msg2. The scheduling information of Msg2 is carried in the downlink control information (DCI) in the downlink control channel (PDCCH). Msg2 is transmitted carried on the PDSCH. Msg2 includes one or more information packets each containing at least one preamble index information. The preamble index information is used to indicate that the information packet is a response to the preamble of the index information. Further, when setting the PRACH resource, the PRACH resource (including the PRACH time-frequency resource and / or the preamble resource on the PRACH) is grouped, and the PRACH resource of each group can support Msg1 transmission in multiple beams directions. When the UE selects one group of PRACH resources, it transmits Msg1 on M beams corresponding to the PRACH resources of this group.

[0083] The extension of the above step 3 is as follows. In step 3, after the UE transmits Msg1, within one time window, it detects the PDCCH transmitted from the TRP, and the DCI of the PDCCH carries the scheduling information of the response information Msg2 of Msg1. Within the time window, the UE detects the PDCCH, and after detecting its own transmitted preamble index from the Msg2 message carried on the corresponding PDSCH, it continues to transmit Msg3 according to the Msg3 resource indicated by Msg2. Further, the UE does not continue to detect the PDCCH transmitted from the TRP within the time window.

[0084] From the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiments may be realized by combining software with the necessary general-purpose hardware platform, and of course, it may also be realized by hardware. However, in many cases, the former is a preferred embodiment. Based on such an understanding, the essence of the technical means of the present disclosure or the part that contributes to the prior art is embodied in the form of a software product. The computer software product is stored in a storage medium (for example, ROM / RAM, magnetic disk, optical disk), and includes several instructions for causing a terminal device (which may be a mobile phone, a computer, a server, a network device, etc.) to execute the methods described in the embodiments of the present disclosure.

[0085] In this embodiment, an information transmission device is further provided. The device is used to realize the above embodiments, which have already been described, and therefore repeated descriptions are omitted. The term "module" used below can realize a combination of software and / or hardware with a predetermined function. The devices described in the following embodiments are optionally realized by software, but may also be realized by hardware, or a combination of software and hardware.

[0086] FIG. 5 is a block diagram of the configuration of an information transmission device according to an embodiment of the present disclosure. As shown in FIG. 5, the device includes a first determination module 52 for determining a plurality of target beams, and a first transmission module 54 for transmitting a random access signal to a first node based on resources corresponding to the plurality of target beams respectively.

[0087] In a preferred embodiment, the first determination module 52 Detecting a downlink channel and selecting a plurality of the target beams based on the detection result; measuring a downlink signal and selecting a plurality of the target beams based on the measurement result; selecting a plurality of the target beams from the stored beams; obtaining a plurality of the target beams from a plurality of beams set by the first node; and selecting a target resource group from a plurality of set resource groups and selecting a plurality of the target beams from a plurality of beams corresponding to the target resource group, determining a plurality of target beams in at least one of the above manners.

[0088] In a preferred embodiment, the first transmission module 54 is as follows a first determination unit for determining a transmission power for transmitting the random access signal with the target beam; a second determination unit for determining a first beam from a plurality of the target beams based on the transmission power, wherein the number of the first beams is one or more and is less than or equal to the number of the target beams; and a first transmission unit for transmitting the random access signal on a resource corresponding to the first beam.

[0089] In a preferred embodiment, the second determination unit includes a determination subunit for determining, as the first beam, a corresponding target beam when the transmission power is less than or equal to a first threshold.

[0090] In a preferred embodiment, the apparatus an acquisition module for acquiring a first response message transmitted from the first node after transmitting a random access signal to the first node based on resources respectively corresponding to a plurality of the target beams; A second transmission module that transmits an uplink message to the first node based on the uplink channel resource set by the uplink channel setting information in the first response message, where the uplink message includes at least one of first indication information indicating whether to use a first effective beam and identification information of a second node that transmits the uplink message, the first effective beam is a target beam for a random access signal corresponding to the first response message, and the beam corresponding to the first response message is a second effective beam, and further includes the second transmission module.

[0091] In a preferred embodiment, the above device After transmitting an uplink message to the first node, if the first node determines, based on the first indication information in the received uplink message, that the second node will no longer use the first effective beam, a first termination module that terminates transmitting a second response message to the second node on the resource corresponding to the second effective beam. A third transmission module that transmits a second response message to the second node on the resource corresponding to the second effective beam when the first node determines, based on the first indication information in the received uplink message, that the second node will use the first effective beam, where the second response message is a response message to the uplink message, and further includes the third transmission module.

[0092] In a preferred embodiment, the above first node A first reception module that receives the uplink message. If the first indication information included in at least one of the uplink messages received within one time window indicates that the first effective beam will no longer be used, the first node selects at least one first effective beam from the first effective beams that will no longer be used indicated by the second node, and continues to transmit a second response message to the second node on a resource corresponding to a second effective beam corresponding to the selected at least one first effective beam, where the second response message is a response message to the uplink message, and includes a fourth transmission module.

[0093] In a preferred embodiment, the above device After transmitting an uplink message to the first node, if the target downlink channel transmitted from the first node to the second node is not received on a resource corresponding to a second effective beam corresponding to the indicated unused first effective beam, a first confirmation module for confirming to abandon the use of the first effective beam; On a resource corresponding to a second effective beam corresponding to the indicated unused first effective beam, if the target downlink channel transmitted from the first node to the second node is received, and the control information in the target downlink channel includes confirmation information that the first effective beam will not be used, a second confirmation module for confirming not to continue detecting the target downlink channel on a resource corresponding to a second effective beam corresponding to the first effective beam; On a resource corresponding to a second effective beam corresponding to the indicated unused first effective beam, if the target downlink channel transmitted by the first node is received, and the control information in the target downlink channel includes information that the first effective beam will be used, a first detection module for continuing to detect the second response message based on the scheduling information of the second response message in the target downlink channel; On a resource corresponding to a second effective beam corresponding to the unused first effective beam shown, receive the target downlink channel transmitted by the first node, and if the control information in the target downlink channel includes scheduling information of the second response message in an effective state, further include at least one of: a second detection module that continues to detect the second response message based on the scheduling information.

[0094] In a preferred embodiment, the second transmission module a selection unit that selects one or more first response messages from the obtained first response messages; a second transmission unit that transmits the uplink message to the first node through an uplink channel resource set by the uplink channel setting information in the selected first response message.

[0095] In a preferred embodiment, the second transmission module transmitting an uplink message whose transmission power on the resource corresponding to the first effective beam exceeds a second threshold, the resource size of the set uplink message not satisfying a first demand, and the channel quality performance of the received first response message not satisfying a second demand, and if at least one of the rules is satisfied, a third determination unit that determines an uplink message that does not need to be transmitted on the resource corresponding to the first effective beam; a third transmission unit that transmits other uplink messages other than the uplink message that does not need to be transmitted to the first node.

[0096] In a preferred embodiment, the apparatus After transmitting an uplink message to the first node, a second receiving module that receives a target downlink channel transmitted from the first node and determines whether to continue using the first effective beam based on the target downlink channel. If the target downlink channel indicates that the first effective beam should not be continued to be used, the second receiving module does not continue to detect a second response message that is a response message to the uplink message. If the target downlink channel indicates that the first effective beam needs to be continued to be used, the second receiving module continues to detect the second response message. The apparatus further includes a second receiving module.

[0097] In a preferred embodiment, the obtaining module A first detection unit that detects a target downlink channel transmitted by the first node within a target time window after the random access signal is transmitted. The target control information of the target downlink channel includes scheduling information of the first response message. The first detection unit A second detection unit that detects and receives the first response message based on the scheduling information of the first response message. After obtaining the first response message returned by the first node based on the received random access signal, the apparatus further includes a second termination module that terminates continuously detecting the target downlink channel within the target time window.

[0098] FIG. 6 is a block diagram of the configuration of an information receiving apparatus according to an embodiment of the present disclosure. As shown in FIG. 6, the apparatus A third receiving module that receives a random access signal transmitted by a second node on resources corresponding to a plurality of target beams respectively. The plurality of target beams are beams determined by the second node. The apparatus includes a third receiving module 62.

[0099] In a preferred embodiment, the plurality of the target beams determine a downlink signal, select the plurality of the target beams based on a measurement result, select the plurality of the target beams from stored beams, obtain the plurality of the target beams from a plurality of beams set by a first node, and select a target resource group from a plurality of set resource groups, and select the plurality of the target beams from a plurality of beams corresponding to the target resource group, and are determined by the second node in at least one of the above manners.

[0100] In a preferred embodiment, the above third receiving module 62 is a second receiving unit that receives the random access signal transmitted by the second node on a resource corresponding to a first beam, where the first beam is determined by the second node in such a manner that it determines a transmission power for transmitting the random access signal with the target beam, and determines the first beam from the plurality of the target beams based on the transmission power, the number of the first beams is one or more and is not more than the number of the target beams, and includes the second receiving unit.

[0101] In a preferred embodiment, the second node realizes determining the first beam from the plurality of the target beams based on the transmission power in such a manner that it determines a corresponding target beam whose transmission power is not more than a first threshold value as the first beam.

[0102] In a preferred embodiment, the above device A reply module that, after receiving a random access signal transmitted by a second node on a resource corresponding to a plurality of target beams respectively, returns a first response message to the second node based on the received random access signal. The first response message instructs the second node to return an uplink message based on an uplink channel resource set by uplink channel setting information in the first response message. The uplink message includes at least one of first indication information indicating whether to use a first effective beam and identification information of the second node that transmits the uplink message. The first effective beam is a target beam for the random access signal corresponding to the first response message, and the beam corresponding to the first response message is a second effective beam. The reply module further includes:

[0103] In a preferred embodiment, the above device A third termination module that, when it is determined based on the first indication information in the received uplink message that the second node will stop using the first effective beam, terminates transmitting a second response message to the second node on a resource corresponding to the second effective beam; A processing module that, when it is determined based on the first indication information in the received uplink message that the second node will use the first effective beam, transmits a second response message to the second node on a resource corresponding to the second effective beam. The second response message is a response message to the uplink message. The device further includes the processing module.

[0104] In a preferred embodiment, the above device A fourth receiving module that receives the uplink message; If the first indication information included in at least one of the uplink messages received within one time window indicates that the first effective beam is no longer used, select at least one first effective beam from the first effective beams indicated by the second node as no longer used, and continue to transmit a second response message to the second node on a resource corresponding to a second effective beam corresponding to the selected at least one first effective beam, where the second response message is a response message to the uplink message, and a fifth transmission module.

[0105] In a preferred embodiment, the apparatus A fifth receiving module that receives the uplink message transmitted by the second node on an uplink channel resource set by uplink channel setting information in one or more selected first response messages, where the one or more selected first response messages are those selected by the second node from the obtained first response messages, and further includes a fifth receiving module.

[0106] In a preferred embodiment, the above apparatus A sixth transmission module that transmits a target downlink channel indicating whether the second node continues to use the first effective beam to the second node, where if it is indicated that the second node no longer continues to use the first effective beam, the second node does not continue to detect a second response message that is a response message to the uplink message, and if it is indicated that the second node needs to continue to use the first effective beam, the second node continues to detect a second response message, and further includes a sixth transmission module.

[0107] Note that each of the above modules can be implemented by software or hardware. In the case of the latter, the modules can be implemented in such a way that all of them are located in the same processor, or in such a way that each of the modules is located in a different processor in any combination, but is not limited thereto.

[0108] In an embodiment of the present disclosure, furthermore, a computer-readable storage medium storing a computer program is provided, and the computer program is configured to execute the steps in the embodiment of any of the above methods when executed.

[0109] In an exemplary embodiment, the computer-readable storage medium can include various media capable of storing a computer program, such as a USB disk, a read-only memory (abbreviated as ROM), a random access memory (abbreviated as RAM), a mobile hard disk, a magnetic disk, or an optical disk, but is not limited thereto.

[0110] In an embodiment of the present disclosure, furthermore, an electronic device including a memory storing a computer program and a processor configured to execute the computer program to execute the steps in the embodiment of any of the above methods is provided.

[0111] In an exemplary embodiment, the electronic device may further include a transmission device connected to the processor and an input / output device connected to the processor.

[0112] Specific examples in this embodiment can refer to the examples described in the above embodiment and the exemplary embodiment, so the description of this embodiment is omitted here for the sake of brevity.

[0113] Obviously, those skilled in the art will understand that each module or each step in the above-described disclosure may be implemented on a general-purpose computing device, may be concentrated on a single computing device, or may be distributed across a network composed of multiple computing devices. Since they may be implemented by program codes executable on a computing device, they can be stored in a storage device and executed on a computing device. And in some cases, the steps illustrated or described may be executed in an order different from that in this specification, or they may be made into each integrated circuit module respectively, or a plurality of them or steps may be made into a single integrated circuit for implementation. Thus, the present disclosure is not limited to any specific combination of hardware and software.

[0114] The above are only embodiments of the present disclosure and do not limit the present disclosure. Those skilled in the art can make various changes and modifications to the present disclosure. Any modifications, equivalent replacements, improvements, etc. made within the principles of the present disclosure should all be included within the protection scope of the present disclosure.

Claims

1. Determining a plurality of target beams; and Transmitting a random access signal to a first node based on resources respectively corresponding to the plurality of target beams. A method for transmitting a signal, comprising the steps above.

2. The step of determining a plurality of target beams includes:[[]] Detecting a downlink channel and selecting the plurality of target beams based on the detection result; Measuring a downlink signal and selecting the plurality of target beams based on the measurement result; Selecting the plurality of target beams from stored beams; Obtaining the plurality of target beams from a plurality of beams set by the first node; Selecting a target resource group from a plurality of set resource groups and selecting the plurality of target beams from a plurality of beams corresponding to the target resource group. The method according to claim 1 includes at least one of the steps above.

3. The step of transmitting a random access signal to a first node based on resources respectively corresponding to the plurality of target beams includes:[[]] Determining a transmission power for transmitting the random access signal on the target beam; Determining a first beam from the plurality of target beams based on the transmission power, where the number of the first beams is one or more and is less than or equal to the number of the target beams; Transmitting the random access signal on a resource corresponding to the first beam. The method according to claim 1 includes the steps above.

4. The step of determining a first beam from the plurality of target beams based on the transmission power includes:[[]] Determining a corresponding target beam whose transmission power is less than or equal to a first threshold as the first beam. The method according to claim 3 includes the step above.

5. After the step of transmitting a random access signal to a first node based on resources respectively corresponding to the plurality of target beams, the method further includes:[[]] Obtaining a first response message transmitted by the first node; Based on the uplink channel resource set by the uplink channel configuration information in the first response message, a step of transmitting an uplink message to the first node, wherein the uplink message includes at least one of first indication information indicating whether to use a first effective beam and identification information of a second node for transmitting the uplink message, the first effective beam is a target beam for a random access signal corresponding to the first response message, and the beam corresponding to the first response message is a second effective beam. The method according to claim 1 further includes the step of

6. After the step of transmitting an uplink message to the first node, the method If the first node determines that the second node will stop using the first effective beam based on the first indication information in the received uplink message, ending the step of transmitting a second response message, which is a response message to the uplink message, to the second node on the resource corresponding to the second effective beam If the first node determines that the second node will use the first effective beam based on the first indication information in the received uplink message, the method according to claim 5 further includes the step of transmitting a second response message to the second node on the resource corresponding to the second effective beam

7. After the step of transmitting an uplink message to the first node, the method The step of the first node receiving the uplink message If the first indication information included in at least one of the uplink messages received by the first node within one time window indicates that the first effective beam will no longer be used, the first node selects at least one first effective beam from the first effective beams that will no longer be used indicated by the second node, and continues to transmit a second response message, which is a response message to the uplink message, to the second node on the resource corresponding to the second effective beam corresponding to the selected at least one first effective beam. The method according to claim 5 further includes the step of

8. After the step of transmitting an uplink message to the first node, the method further comprises: If the target downlink channel transmitted from the first node to the second node is not received on the resource corresponding to the second effective beam corresponding to the first effective beam shown as unused, confirming to abandon the use of the first effective beam; If the target downlink channel transmitted from the first node to the second node is received on the resource corresponding to the second effective beam corresponding to the first effective beam shown as unused, and the control information in the target downlink channel includes confirmation information that the first effective beam is not used, confirming not to continue detecting the target downlink channel on the resource corresponding to the second effective beam corresponding to the first effective beam; If the target downlink channel transmitted by the first node is received on the resource corresponding to the second effective beam corresponding to the first effective beam shown as unused, and the control information in the target downlink channel includes information that the first effective beam is used, continuing to detect the second response message based on the scheduling information of the second response message in the target downlink channel; The method according to claim 7, further comprising at least one of the following steps: If the target downlink channel transmitted by the first node is received on the resource corresponding to the second effective beam corresponding to the first effective beam shown as unused, and the control information in the target downlink channel includes the scheduling information of the second response message in an active state, continuing to detect the second response message based on the scheduling information. Claim 9 Based on the uplink channel resource set by the uplink channel setting information in the first response message, the step of transmitting an uplink message to the first node comprises: Selecting one or more first response messages from the obtained first response messages; The method according to claim 5, comprising: transmitting the uplink message to the first node by using an uplink channel resource set according to uplink channel configuration information in a selected first response message.

10. The step of transmitting an uplink message to the first node comprises: transmitting, on a resource corresponding to the first active beam, an uplink message whose transmission power exceeds a second threshold; the set resource size of the uplink message not satisfying a first demand; the channel quality performance of the received first response message not satisfying a second demand; and determining an uplink message that does not need to be transmitted on a resource corresponding to the first active beam if at least one of the following rules is satisfied: not transmitting other uplink messages other than the uplink message that does not need to be transmitted to the first node. The method according to claim 5.

11. After the step of transmitting an uplink message to the first node, the method further comprises: receiving a target downlink channel transmitted from the first node, and determining whether to continue using the first active beam based on the target downlink channel. If it is shown that the target downlink channel does not continue to use the first active beam, not continuously detecting a second response message that is a response message of the uplink message; if it is shown that the target downlink channel needs to continue using the first active beam, continuously detecting a second response message. The method according to claim 5 or 10.

12. The step of obtaining a first response message returned by the first node based on the received random access signal comprises: after the random access signal is transmitted, detecting a target downlink channel transmitted by the first node within a target time window, wherein scheduling information of the first response message is carried in target control information of the target downlink channel. detecting and receiving the first response message based on the scheduling information of the first response message; after obtaining the first response message returned by the first node based on the received random access signal, the method further includes: ending the step of continuously detecting the target downlink channel within the target time window, according to the method of claim 5.

13. Receiving a random access signal transmitted by a second node on resources corresponding to a plurality of target beams, wherein the plurality of target beams are beams determined by the second node.

14. The plurality of target beams are: measuring a downlink signal and selecting the plurality of target beams based on the measurement results; selecting the plurality of target beams from stored beams; obtaining the plurality of target beams from a plurality of beams set by a first node; and selecting a target resource group from a plurality of set resource groups and selecting the plurality of target beams from a plurality of beams corresponding to the target resource group, and being determined by the second node in at least one of the above manners, according to the method of claim 13.

15. The step of receiving the random access signal transmitted by the second node on resources corresponding to a plurality of target beams includes: receiving the random access signal transmitted by the second node on the resource corresponding to the first beam, wherein the first beam is determined by the second node in such a manner that the transmission power of transmitting the random access signal on the target beam is determined, and the first beam is determined from the plurality of target beams based on the transmission power, the number of the first beams is one or more, and is less than or equal to the number of the target beams, according to the method of claim 13.

16. The second node is: The method according to claim 15, which realizes determining the first beam from a plurality of the target beams based on the transmission power in such a manner that a corresponding target beam whose transmission power is equal to or less than a first threshold value is determined as the first beam.

17. After the step of receiving a random access signal transmitted by a second node on a resource corresponding to each of a plurality of target beams, the method includes: a step of replying a first response message to the second node based on the received random access signal, wherein the first response message instructs the second node to reply an uplink message based on an uplink channel resource set by uplink channel setting information in the first response message, and the uplink message includes at least one of first indication information indicating whether to use a first effective beam and identification information of the second node that transmits the uplink message, the first effective beam being a target beam for the random access signal corresponding to the first response message, and the beam corresponding to the first response message being a second effective beam.

18. The method includes: ending the step of transmitting a second response message, which is a response message to the uplink message, to the second node on a resource corresponding to the second effective beam when it is determined that the second node stops using the first effective beam based on the first indication information in the received uplink message; and transmitting a second response message to the second node on a resource corresponding to the second effective beam when it is determined that the second node uses the first effective beam based on the first indication information in the received uplink message. The method according to claim 17 further includes these steps.

19. The method includes: the step of receiving the uplink message; If the first indication information included in at least one of the uplink messages received within one time window indicates that the first effective beam is no longer used, select at least one first effective beam from the first effective beams indicated by the second node as no longer used, and continue to transmit, on a resource corresponding to a second effective beam corresponding to the selected at least one first effective beam, a second response message that is a response message to the uplink message to the second node, the method according to claim 17, further comprising the step of

20. The method receiving, on an uplink channel resource set by uplink channel configuration information in one or more selected first response messages, the uplink message transmitted by the second node, wherein the one or more selected first response messages are those selected by the second node from the obtained first response messages, the method according to claim 17, further comprising the step of

21. The method transmitting, to the second node, a target downlink channel indicating whether the second node continues to use the first effective beam, wherein, if it is indicated that the second node does not continue to use the first effective beam, the second node does not continue to detect a second response message that is a response message to the uplink message, and if it is indicated that the second node needs to continue to use the first effective beam, the second node continues to detect the second response message, the method according to claim 17, further comprising the step of

22. a first determination module for determining a plurality of target beams; a first transmission module for transmitting a random access signal to a first node based on resources respectively corresponding to the plurality of target beams, a signal transmission device.

23. a third receiving module for receiving a random access signal transmitted by a second node on resources respectively corresponding to a plurality of target beams, wherein the plurality of target beams are beams determined by the second node, a signal receiving device.

24. A computer-readable storage medium storing a computer program, wherein when the computer program is executed by a processor, the computer-readable storage medium realizes the steps of the method according to any one of claims 1 to 12 or claims 13 to 21. **Claim 25** A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the electronic device realizes the steps of the method according to any one of claims 1 to 12 or claims 13 to 21.

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