A method and device for wireless communication

Abstract

The present application discloses a method and apparatus used in wireless communication. A first node receives a first RRC message, the first RRC message is used to indicate a first random access resource set, the first random access resource set includes at least one random access resource; a protocol layer below the RRC layer receives first information, the first information is used to indicate a second random access resource set, the second random access resource set includes at least one random access resource; a target random access resource set is determined at least according to a triggering event of the first message, the first message is sent, the first message occupies a first random access resource, the first random access resource is a random access resource in the target random access resource set; the first message includes a random access pilot. The present application uses a random access process to send small data, which can achieve the beneficial effects of reducing signaling overhead, saving power and improving wireless resource utilization.

Description

Technical Field

[0001] The present application relates to methods and devices in wireless communication systems, and more particularly to methods and devices supporting small data transmission through a random access process in wireless communication. Background Art

[0002] Random Access (RA) is a common method in cellular communications. Uplink synchronization and uplink transmission resources can be obtained through a four-step random access process. In order to adapt to various application scenarios and meet different needs, the 3GPP RAN#76 plenary meeting also passed the study item (SI) of non-orthogonal multiple access (NoMA) under NR. This study project started in Release 16, and after the SI was completed, a work item (WI) was launched to standardize related technologies. As a follow-up to the NoMA study project, the WI of 2-step random access (2-step RACH) under NR was also passed at the 3GPP RAN#82 plenary meeting.

[0003] NR supports the RRC (Radio Resource Control) inactive (RRC_Inactive) state. The terminal equipment (User Equipment, UE) with infrequent (including periodic and non-periodic) data transmission requirements is usually configured by the network to reside in the RRC inactive state when there is no data transmission. When the UE has data transmission requirements, the UE enters the RRC connected (RRC_Connected) state from the RRC inactive state to perform data transmission, and re-enters the RRC inactive state after the data transmission is completed. Until Rel-16, 3GPP did not support data transmission in the RRC inactive state. For small data transmission, the signaling overhead of the RRC state transition is greater than the transmission overhead of small data, and it also increases the power consumption overhead of the UE. Therefore, at the 3GPP RAN#88e plenary meeting, it was decided to start WI standardization work for small data transmission in the RRC inactive state. Summary of the invention

[0004] The inventors have found through research that UE can send small data through a competitive random access process in the RRC inactive state. If the random access resources used for sending small data are pre-configured by the system, for scenarios with sudden large-scale small data transmission, the random access resources configured by the system will be seriously insufficient, causing a large number of random access collisions and making the small data transmission unsuccessful. At this time, if the RRC connection state is switched to send small data, the signaling overhead cannot be reduced and the power saving effect cannot be achieved; on the other hand, if the random access resource configuration for sending small data is large enough, the unpredictability of the service will reduce the utilization rate of wireless resources. How to support the sudden large-scale small data transmission while effectively utilizing wireless resources needs to be studied.

[0005] In view of the above problems, the present application discloses a solution for supporting the sending of small data through a competitive random access process in an RRC inactive state. When a large amount of burst small data needs to be transmitted, the network device indicates additional random access resources through a non-unicast transmission method to support the burst transmission of a large amount of small data in a short period of time. This solution can also achieve the beneficial effects of low signaling overhead and low power consumption for sending small data in an RRC inactive state, and can effectively improve the utilization rate of wireless resources.

[0006] Furthermore, although the original intention of this application is for the Uu air interface, this application can also be used for the PC5 port. Furthermore, although the original intention of this application is for single-carrier communication, this application can also be used for multi-carrier communication. Furthermore, although the original intention of this application is for single-antenna communication, this application can also be used for multi-antenna communication. In the absence of conflict, the embodiments of this application and the features in the embodiments can be combined with each other arbitrarily. Furthermore, although the original intention of this application is for the terminal and base station scenario, this application is also applicable to the V2X scenario, the communication scenario between the terminal and the relay, and the relay and the base station, to achieve similar technical effects in the terminal and base station scenario. In addition, the use of a unified solution for different scenarios (including but not limited to V2X scenarios and communication scenarios between terminals and base stations) also helps to reduce hardware complexity and cost.

[0007] In particular, the interpretation of the terminology, nouns, functions, and variables in this application (unless otherwise specified) can refer to the definitions in the 3GPP specification protocols TS36 series, TS38 series, and TS37 series.

[0008] The present application discloses a method in a first node used for wireless communication, characterized by comprising:

[0009] receiving a first RRC message, where the first RRC message is used to indicate a first random access resource set, where the first random access resource set includes at least one random access resource;

[0010] Receiving first information at a protocol layer below the RRC layer, where the first information is used to indicate a second random access resource set, where the second random access resource set includes at least one random access resource;

[0011] Determine a target random access resource set at least according to a triggering event of a first message, send the first message, the first message occupies a first random access resource, and the first random access resource is a random access resource in the target random access resource set;

[0012] Any random access resource in the first random access resource set and the second random access resource set includes a time-frequency resource that accommodates at least one random access pilot; the target random access resource set is one of the first random access resource set and the second random access resource set, and the first message includes a random access pilot.

[0013] As an embodiment, the present application is applicable to small data transmission based on a random access process.

[0014] As an embodiment, the present application will not affect the performance of the random access process triggered by events other than small data transmission.

[0015] As an embodiment, the problem to be solved by the present application is: for a scenario where a large amount of small data is sent suddenly, the random access resources pre-configured by the system will be seriously insufficient, causing a large number of random access collisions and resulting in unsuccessful small data transmission, and failing to achieve the beneficial effects of saving signaling overhead and power saving by sending small data using the random access process.

[0016] As an embodiment, the solution of the present application includes: when a large amount of burst small data needs to be transmitted, the network device indicates additional random access resources to support the burst transmission of a large amount of small data in a short period of time.

[0017] As an embodiment, the beneficial effects of the present application include: being able to simultaneously obtain the beneficial effects of low signaling overhead and low power consumption for sending small data through a random access process in an RRC inactive state, and being able to effectively improve wireless resource utilization.

[0018] According to one aspect of the present application, it includes:

[0019] The first information is associated with a first identifier, and the first identifier is used to indicate a first node set; the first node set includes the first node.

[0020] According to one aspect of the present application, it includes:

[0021] monitoring a first signal in a first time window;

[0022] The first signal includes a response to the first message.

[0023] According to one aspect of the present application, it includes:

[0024] The triggering event of the first message includes that uplink data arrives and the first node is in a non-RRC connected state;

[0025] The uplink data includes a second bit set, and the data amount of the second bit set is not greater than a second threshold.

[0026] According to one aspect of the present application, it includes:

[0027] The triggering event of the first message includes that the first information includes a first bit set;

[0028] The data volume of the first bit set is not greater than a first threshold.

[0029] According to one aspect of the present application, it includes:

[0030] The time interval between the first time domain resource in the second random access resource set and the reception time of the first information is not less than a third threshold.

[0031] According to one aspect of the present application, it includes:

[0032] The first message includes a second signal;

[0033] The second bit group is used to generate the second signal; the second bit set includes the second bit group; and the random access pilot included in the first message is sent before the second signal.

[0034] The present application discloses a first node used for wireless communication, characterized in that it includes:

[0035] A first receiver receives a first RRC message, where the first RRC message is used to indicate a first random access resource set, where the first random access resource set includes at least one random access resource; receives first information at a protocol layer below the RRC layer, where the first information is used to indicate a second random access resource set, where the second random access resource set includes at least one random access resource;

[0036] A first transmitter determines a target random access resource set at least according to a triggering event of a first message, and sends the first message, where the first message occupies a first random access resource, and the first random access resource is a random access resource in the target random access resource set;

[0037] Any random access resource in the first random access resource set and the second random access resource set includes a time-frequency resource that accommodates at least one random access pilot; the target random access resource set is one of the first random access resource set and the second random access resource set, and the first message includes a random access pilot.

[0038] The present application discloses a method used in a second node of wireless communication, characterized by comprising:

[0039] Sending a first RRC message, where the first RRC message is used to indicate a first random access resource set, where the first random access resource set includes at least one random access resource;

[0040] Sending first information at a protocol layer below the RRC layer, where the first information is used to indicate a second random access resource set, where the second random access resource set includes at least one random access resource;

[0041] receiving a first message, where the first message occupies a first random access resource, where the first random access resource is a random access resource in a target random access resource set;

[0042] The target random access resource set is determined at least according to a triggering event of a first message; any random access resource in the first random access resource set and the second random access resource set includes a time-frequency resource accommodating at least one random access pilot; the target random access resource set is one of the first random access resource set and the second random access resource set, and the first message includes a random access pilot.

[0043] According to one aspect of the present application, it includes:

[0044] The first identifier is used to indicate a first node set; the first node set includes the first node.

[0045] According to one aspect of the present application, it includes:

[0046] sending a first signal in a first time window;

[0047] The first signal includes a response to the first message.

[0048] According to one aspect of the present application, it includes:

[0049] The triggering event of the first message includes that uplink data arrives and the first node is in a non-RRC connected state;

[0050] The uplink data includes a second bit set, and the data amount of the second bit set is not greater than a second threshold.

[0051] According to one aspect of the present application, it includes:

[0052] The triggering event of the first message includes that the first information includes a first bit set;

[0053] The data volume of the first bit set is not greater than a first threshold.

[0054] According to one aspect of the present application, it includes:

[0055] The time interval between the first time domain resource in the second random access resource set and the reception time of the first information is not less than a third threshold.

[0056] According to one aspect of the present application, it includes:

[0057] The first message includes a second signal;

[0058] The second bit group is used to generate the second signal; the second bit set includes the second bit group; and the random access pilot included in the first message is sent before the second signal.

[0059] The present application discloses a second node used for wireless communication, characterized in that it includes:

[0060] A second transmitter sends a first RRC message, where the first RRC message is used to indicate a first random access resource set, where the first random access resource set includes at least one random access resource; sends first information at a protocol layer below the RRC layer, where the first information is used to indicate a second random access resource set, where the second random access resource set includes at least one random access resource;

[0061] A second receiver receives a first message, where the first message occupies a first random access resource, and the first random access resource is a random access resource in a target random access resource set;

[0062] The target random access resource set is determined at least according to a triggering event of a first message; any random access resource in the first random access resource set and the second random access resource set includes a time-frequency resource accommodating at least one random access pilot; the target random access resource set is one of the first random access resource set and the second random access resource set, and the first message includes a random access pilot. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0064] Figure 1 An example of a transmission flow chart of a first node according to an embodiment of the present application is provided;

[0065] Figure 2 A schematic diagram illustrating a network architecture according to an embodiment of the present application is illustrated;

[0066] Figure 3 A schematic diagram illustrating a wireless protocol architecture of a user plane and a control plane according to an embodiment of the present application;

[0067] Figure 4 A hardware module schematic diagram of a communication device according to an embodiment of the present application is illustrated;

[0068] Figure 5 An example of a wireless signal transmission flow chart according to an embodiment of the present application is provided;

[0069] Figure 6 A first information structure schematic diagram according to an embodiment of the present application is illustrated;

[0070] Figure 7 A schematic diagram illustrating the time relationship between the first information and the second random access resource set according to an embodiment of the present application is illustrated;

[0071] Figure 8 A schematic diagram illustrating the relationship between a first message and a first signal according to an embodiment of the present application is illustrated;

[0072] Fig. 9 A schematic diagram of a second random access resource set according to an embodiment of the present application is illustrated;

[0073] Fig.10 An example structural block diagram of a processing device in a first node according to an embodiment of the present application is shown;

[0074] Fig.11 The structural block diagram of the processing device in the second node according to an embodiment of the present application is illustrated. DETAILED DESCRIPTION

[0075] The technical solution of the present application will be further described in detail below in conjunction with the accompanying drawings. It should be noted that, in the absence of conflict, the embodiments of the present application and the features in the embodiments can be arbitrarily combined with each other.

[0076] Example 1

[0077] Embodiment 1 illustrates a transmission flow chart of a first node according to an embodiment of the present application, as shown in the attached Figure 1 shown.

[0078] In embodiment 1, the first node 100 receives a first RRC message in step 101, where the first RRC message is used to indicate a first random access resource set, and the first random access resource set includes at least one random access resource; receives first information at a protocol layer below the RRC layer in step 102, where the first information is used to indicate a second random access resource set, and the second random access resource set includes at least one random access resource; determines a target random access resource set at least based on a triggering event of the first message in step 103, and sends a first message, where the first message occupies a first random access resource, and the first random access resource is a random access resource in the target random access resource set; wherein any random access resource in the first random access resource set and the second random access resource set includes a time-frequency resource that accommodates at least one random access pilot; the target random access resource set is one of the first random access resource set and the second random access resource set, and the first message includes a random access pilot.

[0079] As an embodiment, the first RRC message is received at the RRC sublayer.

[0080] As an embodiment, the first RRC message includes RRCReconfiguration.

[0081] As an embodiment, the first RRC message includes RRCSetup.

[0082] As an embodiment, the first RRC message is used to indicate a first random access resource set, and the first random access resource set includes at least one random access resource.

[0083] As an embodiment, the first RRC message includes a first random access resource set, and the first random access resource set includes at least one random access resource.

[0084] As an embodiment, the phrase "the first RRC message is used to indicate a first random access resource set" includes: the first RRC message is used to indicate at least one of a time domain resource set, a frequency domain resource set and a code domain resource set included in the first random access resource set.

[0085] As an embodiment, the first RRC message includes a first random access configuration index, and the first random access configuration index is used to indicate a time domain resource set in the first random access resource set.

[0086] As an embodiment, the first RRC message includes a first random access configuration index, where the first random access configuration index is used to indicate a pilot format in the first random access resource set.

[0087] As an embodiment, the first random access configuration index is used to indicate the method described in section 6.3.3.2 of protocol 38.211 of the 3GPP standard for a time domain resource set in the first random access resource set.

[0088] As an embodiment, the first information is received at a protocol layer below the RRC layer.

[0089] As an embodiment, the RRC is inactive state when receiving the first information.

[0090] As an embodiment, the device is in RRC idle state when receiving the first information.

[0091] As an embodiment, the protocol layer includes a physical layer or L1 (layer 1), and the first information includes DCI (Downlink Control Information).

[0092] As an embodiment, the protocol layer includes a MAC (Medium Access Control) layer, and the first information includes a MAC CE (Control Element).

[0093] As an embodiment, the protocol layer includes a MAC layer, and the first information includes a MAC SDU (Service Data Unit).

[0094] As an embodiment, the first information is dynamically configured.

[0095] As an embodiment, the first information is configured periodically.

[0096] As an embodiment, the first information is event-triggered configuration.

[0097] As an embodiment, the first information is infrequent.

[0098] As an embodiment, the first information is used to indicate a second random access resource set, and the second random access resource set includes at least one random access resource.

[0099] As an embodiment, the first information includes the second random access resource set, and the second random access resource set includes at least one random access resource.

[0100] As an embodiment, the phrase "the first information is used to indicate a second random access resource set" includes: the first information is used to indicate at least one of a time domain resource set, a frequency domain resource set and a code domain resource set included in the second random access resource set.

[0101] As an embodiment, the frequency domain resource set included in the first random access resource set and the frequency domain resource set included in the second random access resource set do not overlap.

[0102] As an embodiment, the code domain resource set included in the second random access resource set is the same as the code domain resource set included in the first random access resource set.

[0103] As an embodiment, the number of random access pilots included in the second random access resource set is not less than the number of random access pilots included in the first random access resource set.

[0104] As an embodiment, any random access resource in the first random access resource set and the second random access resource set includes a time-frequency resource that accommodates at least one random access pilot.

[0105] As an embodiment, any random access resource in the first random access resource set includes a time-frequency resource that accommodates at least one random access pilot and includes a time-frequency resource that accommodates at least one PUSCH (Physical Uplink Shared Channel).

[0106] As an embodiment, any random access resource in the second random access resource set includes a time-frequency resource accommodating at least one random access pilot and includes a time-frequency resource accommodating at least one PUSCH.

[0107] As an embodiment, the first random access resource set includes at least one uplink data resource; the uplink data resource is reserved for at least one PUSCH.

[0108] As an embodiment, any random access pilot transmitted in the first random access resource set is associated with a PUSCH in the first random access resource set.

[0109] As an embodiment, any random access pilot transmitted in the first random access resource set is associated with a DMRS (DeModulation Reference Signal) of a PUSCH in the first random access resource set.

[0110] As an embodiment, any random access pilot transmitted in the first random access resource set is inseparable from the transmission of the associated PUSCH (ie, atomic).

[0111] As an embodiment, any random access pilot transmitted in the first random access resource set and the associated PUSCH are sent simultaneously.

[0112] As an embodiment, the phrase that any random access pilot included in the first random access resource set is associated with a PUSCH in the first random access resource set includes: the random access pilot is used to determine the time-frequency resources of the PUSCH and the DMRS of the PUSCH.

[0113] As an embodiment, the target random access resource set is determined at least according to a triggering event of the first message.

[0114] As an embodiment, the target random access resource set is determined according to the triggering event of the first message and the first channel state.

[0115] As an embodiment, the RRC is inactive state when sending the first message.

[0116] As an embodiment, the RRC idle state is in when the first message is sent.

[0117] As an embodiment, the triggering event of the first message includes initial access from an RRC idle state (RRC_IDLE).

[0118] As an embodiment, the triggering event of the first message includes RRC connection re-establishment.

[0119] As an embodiment, the triggering event of the first message includes the arrival of downlink (DL) or uplink (UL) data in the RRC connection state and the uplink synchronization state is in "non-synchronized".

[0120] As an embodiment, the triggering event of the first message includes the arrival of uplink data in the RRC connected state and the absence of PUCCH (Physical Uplink Control Channel) resources available for sending an SR (Scheduling Request).

[0121] As an embodiment, the triggering event of the first message includes SR failure.

[0122] As an embodiment, the triggering event of the first message includes an RRC message requesting synchronous reconfiguration, such as for cell switching.

[0123] As an embodiment, the triggering event of the first message includes a transition from an RRC inactive (RRC_Inactive) state.

[0124] As an embodiment, the triggering event of the first message includes establishing time alignment for a secondary TAG (time alignment group).

[0125] As an embodiment, the triggering event of the first message includes requesting other system information (System Information, SI).

[0126] As an embodiment, the triggering event of the first message includes beam failure recovery.

[0127] As an embodiment, the triggering event of the first message includes a continuous uplink LBT (Listen Before Talk) failure on a special cell (Special cell, SpCell).

[0128] As an embodiment, the triggering event of the first message is a triggering event of a random access process to which the first message belongs.

[0129] As an embodiment, the triggering event of the first message triggers a random access process; and the first message is sent during the random access process.

[0130] As an embodiment, the target random access resource set is one of the first random access resource set and the second random access resource set.

[0131] As an embodiment, when the triggering event of the first message includes initial access from an RRC idle state, the target random access resource set is determined to be the first random access resource set.

[0132] As an embodiment, when the triggering event of the first message includes RRC connection reestablishment, the target random access resource set is determined to be the first random access resource set.

[0133] As an embodiment, when the triggering event of the first message includes RRC connection reestablishment, the target random access resource set is determined to be the second random access resource set.

[0134] As an embodiment, when the triggering event of the first message includes RRC connection reconstruction, the target random access resource set is determined according to the triggering event of the first message and the start times of the time domain resources respectively included in the first random access resource set and the second random access resource set.

[0135] As an embodiment, when the triggering event of the first message includes RRC connection reconstruction, and when the starting time of a time domain resource included in the first random access resource set is earlier than the starting time of any time domain resource included in the second random access resource set, the target random access resource set is determined to be the first random access resource set.

[0136] As an embodiment, when the triggering event of the first message includes RRC connection reconstruction, and when the starting time of a time domain resource included in the second random access resource set is earlier than the starting time of any time domain resource included in the first random access resource set, the target random access resource set is determined to be the second random access resource set.

[0137] As an embodiment, when the triggering event of the first message includes RRC connection reconstruction, and when the starting time of the first time domain resource included in the first random access resource set is the same as the starting time of the first time domain resource included in the second random access resource set, the target random access resource set is determined to be the first random access resource set.

[0138] As an embodiment, when the triggering event of the first message includes the arrival of downlink or uplink data in the RRC connection state and the uplink synchronization state is in "out of synchronization", the target random access resource set is determined to be the first random access resource set.

[0139] As an embodiment, when the triggering event of the first message includes the arrival of uplink data in the RRC connection state and the uplink synchronization state is in "asynchronous", the target random access resource set is determined according to the triggering event of the first message, the priority information in the configuration information of the PUSCH of the uplink data, and the start times of the time domain resources respectively included in the first random access resource set and the second random access resource set.

[0140] As an embodiment, when the triggering event of the first message includes the arrival of uplink data in the RRC connected state and the uplink synchronization state is in "asynchronous", and the configuration information of the PUSCH for sending the uplink data includes priorityIndicatorForDCI-Format0-1 (DCI format 0-1 priority indication) enabled (enabled) or priorityIndicatorForDCI-Format0-2 (DCI format 0-2 priority indication) enabled (enabled), and when the start time of a time domain resource included in the first random access resource set is earlier than the start time of any time domain resource included in the second random access resource set, the target random access resource set is determined to be the first random access resource set.

[0141] As an embodiment, when the triggering event of the first message includes the arrival of uplink data in the RRC connected state and the uplink synchronization state is in "asynchronous", and the configuration information of the PUSCH for sending the uplink data includes priorityIndicatorForDCI-Format0-1 enabled or priorityIndicatorForDCI-Format0-2 enabled, and when the start time of a time domain resource included in the second random access resource set is earlier than the start time of any time domain resource included in the first random access resource set, the target random access resource set is determined to be the second random access resource set.

[0142] As an embodiment, when the triggering event of the first message includes the arrival of uplink data in the RRC connected state and the uplink synchronization state is in "asynchronous", and the configuration information of the PUSCH for sending the uplink data includes priorityIndicatorForDCI-Format0-1 enabled or priorityIndicatorForDCI-Format0-2 enabled, and when the starting time of the first time domain resource included in the first random access resource set is the same as the starting time of the first time domain resource included in the second random access resource set, the target random access resource set is determined to be the first random access resource set.

[0143] As an embodiment, when the triggering event of the first message includes the arrival of uplink data in the RRC connected state and no PUCCH resources available for sending SR, the target random access resource set is determined to be the first random access resource set.

[0144] As an embodiment, when the triggering event of the first message includes the arrival of uplink data and the absence of PUCCH resources available for sending SR in the RRC connected state, the target random access resource set is determined according to the triggering event of the first message, the priority information in the configuration information of the PUSCH of the uplink data, and the start times of the time domain resources respectively included in the first random access resource set and the second random access resource set.

[0145] As an embodiment, when the triggering event of the first message includes the arrival of uplink data in the RRC connected state and there are no PUCCH resources available for sending SR, and the configuration information of the PUSCH for sending the uplink data includes priorityIndicatorForDCI-Format0-1 enabled or priorityIndicatorForDCI-Format0-2 enabled, and when the start time of a time domain resource included in the first random access resource set is earlier than the start time of any time domain resource included in the second random access resource set, the target random access resource set is determined to be the first random access resource set.

[0146] As an embodiment, when the triggering event of the first message includes the arrival of uplink data in the RRC connected state and there are no PUCCH resources available for sending SR, and the configuration information of the PUSCH for sending the uplink data includes priorityIndicatorForDCI-Format0-1 enabled or priorityIndicatorForDCI-Format0-2 enabled, and when the start time of a time domain resource included in the second random access resource set is earlier than the start time of any time domain resource included in the first random access resource set, the target random access resource set is determined to be the second random access resource set.

[0147] As an embodiment, when the triggering event of the first message includes the arrival of uplink data in the RRC connected state and there are no PUCCH resources available for sending SR, and the configuration information of the PUSCH for sending the uplink data includes priorityIndicatorForDCI-Format0-1 enabled or priorityIndicatorForDCI-Format0-2 enabled, and when the starting time of the first time domain resource included in the first random access resource set is the same as the starting time of the first time domain resource included in the second random access resource set, the target random access resource set is determined to be the first random access resource set.

[0148] As an embodiment, the triggering event of the first message includes SR failure, and the target random access resource set is determined to be the first random access resource set.

[0149] As an embodiment, when the triggering event of the first message includes an RRC message requesting synchronous reconfiguration, such as for cell switching, the target random access resource set is determined to be the first random access resource set.

[0150] As an embodiment, when the triggering event of the first message includes a transition from an RRC inactive state, the target random access resource set is determined to be the first random access resource set.

[0151] As an embodiment, when the triggering event of the first message includes establishing time calibration for the auxiliary TAG, the target random access resource set is determined to be the first random access resource set.

[0152] As an embodiment, when the triggering event of the first message includes requesting other system messages, the target random access resource set is determined to be the first random access resource set.

[0153] As an embodiment, when the triggering event of the first message includes beam failure recovery, the target random access resource set is determined to be the first random access resource set according to the triggering event of the first message.

[0154] As an embodiment, when the triggering event of the first message includes beam failure recovery, the target random access resource set is determined according to the triggering event of the first message and the start times of the time domain resources respectively included in the first random access resource set and the second random access resource set.

[0155] As an embodiment, when the triggering event of the first message includes beam failure recovery, and when the starting time of a time domain resource included in the first random access resource set is earlier than the starting time of any time domain resource included in the second random access resource set, the target random access resource set is determined to be the first random access resource set.

[0156] As an embodiment, when the triggering event of the first message includes beam failure recovery, and when the starting time of a time domain resource included in the second random access resource set is earlier than the starting time of any time domain resource included in the first random access resource set, the target random access resource set is determined to be the second random access resource set.

[0157] As an embodiment, when the triggering event of the first message includes beam failure recovery, and when the starting time of the first time domain resource included in the first random access resource set is the same as the starting time of the first time domain resource included in the second random access resource set, the target random access resource set is determined to be the first random access resource set.

[0158] As an embodiment, when the triggering event of the first message includes continuous uplink LBT failure on a special cell, the target random access resource set is determined to be the first random access resource set.

[0159] As an embodiment, when the triggering event of the first message includes continuous uplink LBT failure on a special cell, the target random access resource set is determined according to the triggering event of the first message and the start times of the time domain resources respectively included in the first random access resource set and the second random access resource set.

[0160] As an embodiment, when the triggering event of the first message includes continuous uplink LBT failure on a special cell, and when the start time of a time domain resource included in the first random access resource set is earlier than the start time of any time domain resource included in the second random access resource set, the target random access resource set is determined to be the first random access resource set.

[0161] As an embodiment, when the triggering event of the first message includes continuous uplink LBT failure on a special cell, and when the start time of a time domain resource included in the second random access resource set is earlier than the start time of any time domain resource included in the first random access resource set, the target random access resource set is determined to be the second random access resource set.

[0162] As an embodiment, when the triggering event of the first message includes continuous uplink LBT failure on a special cell, and when the starting time of the first time domain resource included in the first random access resource set is the same as the starting time of the first time domain resource included in the second random access resource set, the target random access resource set is determined to be the first random access resource set.

[0163] As an embodiment, when the triggering event of the first message includes that the first information includes a first bit set, the target random access resource set is determined to be the second random access resource set.

[0164] As an embodiment, when the triggering event of the first message includes the arrival of uplink data and the first node is in a non-RRC connection state, the target random access resource set is determined to be the second random access resource set.

[0165] As an embodiment, the non-RRC connection state includes an RRC inactive state.

[0166] As an embodiment, the non-RRC connection state includes an RRC idle state.

[0167] As an embodiment, when the triggering event of the first message includes the arrival of uplink data and the first node is in an RRC inactive state, the target random access resource set is determined to be the second random access resource set.

[0168] As an embodiment, when the triggering event of the first message includes the arrival of uplink data and the first node is in an RRC idle state, the target random access resource set is determined to be the second random access resource set.

[0169] As an embodiment, when the triggering event of the first message includes the arrival of uplink data and the first node is in an RRC inactive state and the uplink synchronization state is "out of synchronization", the target random access resource set is determined to be the second random access resource set.

[0170] As an embodiment, the first node sends the first message.

[0171] As an embodiment, the first message includes a random access pilot.

[0172] As an embodiment, the first message includes a random access pilot and a PUSCH; the random access pilot is associated with the PUSCH.

[0173] As an embodiment, the first message includes Msg1 (Message 1) in the random access process.

[0174] As an embodiment, the first message includes MsgA (Message A) in the random access process.

[0175] As an embodiment, the first message occupies a first random access resource, and the first random access resource is a random access resource in the target random access resource set.

[0176] As an embodiment, the random access pilot included in the first message belongs to the code domain resources included in the target random access resource set; the time-frequency resources occupied by the random access pilot belong to the time-frequency resources included in the target random access resource set.

[0177] As an embodiment, the time-frequency resources occupied by the PUSCH included in the first message belong to the time-frequency resources included in the target random access resource set.

[0178] Example 2

[0179] Embodiment 2 illustrates a schematic diagram of a network architecture according to an embodiment of the present application, as shown in the attached Figure 2 shown. Figure 2A diagram illustrating a network architecture 200 for NR 5G, LTE (Long-Term Evolution) and LTE-A (Long-Term Evolution Advanced) systems. The NR 5G, LTE or LTE-A network architecture 200 may be referred to as 5GS (5G System) / EPS (Evolved Packet System) 200 or some other suitable terminology. The 5GS / EPS 200 may include one or more UEs (User Equipment) 201, NG-RAN (Next Generation Radio Access Network) 202, 5GC (5G Core Network) / EPC (Evolved Packet Core) 210, HSS (Home Subscriber Server) / UDM (Unified Data Management) 220, and Internet services 230. The 5GS / EPS may be interconnected with other access networks, but these entities / interfaces are not shown for simplicity. As shown, 5GS / EPS provides packet switching services, but it will be readily understood by those skilled in the art that the various concepts presented throughout this application can be extended to networks providing circuit switching services or other cellular networks. NG-RAN includes NR Node B (gNB) 203 and other gNBs 204. gNB 203 provides user and control plane protocol terminations toward UE 201. gNB 203 can be connected to other gNBs 204 via an Xn interface (e.g., a backhaul link). The XnAP protocol of the Xn interface is used to transmit control plane messages of the wireless network, and the user plane protocol of the Xn interface is used to transmit user plane data. gNB 203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a basic service set (BSS), an extended service set (ESS), a TRP (Transmission Reception Point, a sending and receiving node) or some other suitable term. In a NTN (Non Terrestrial Network, a non-terrestrial / satellite network) network, gNB 203 may be a satellite, an aircraft, or a ground base station relayed by a satellite. gNB203 provides an access point to 5GC / EPC210 for UE201.Examples of UE 201 include cellular phones, smart phones, Session Initiation Protocol (SIP) phones, laptop computers, personal digital assistants (PDAs), satellite radios, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, drones, aircraft, narrowband Internet of Things devices, machine type communication devices, land vehicles, cars, vehicle-mounted devices, vehicle-mounted communication units, wearable devices, or any other similar functional devices. Those skilled in the art may also refer to UE 201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable term. gNB203 is connected to 5GC / EPC210 via S1 / NG interface. 5GC / EPC210 includes MME (Mobility Management Entity) / AMF (Authentication Management Field) / SMF (Session Management Function) 211, other MME / AMF / SMF214, S-GW (Service Gateway) / UPF (User Plane Function) 212 and P-GW (Packet Data Network Gateway) / UPF213. MME / AMF / SMF211 is the control node that handles signaling between UE201 and 5GC / EPC210. ​​In general, MME / AMF / SMF211 provides bearer and connection management. All user IP (Internet Protocol) packets are transmitted through S-GW / UPF212, which itself is connected to P-GW / UPF213. P-GW provides UE IP address allocation and other functions. P-GW / UPF213 is connected to Internet service 230. Internet service 230 includes operator-corresponding Internet protocol services, which may specifically include Internet, Intranet, IMS (IP Multimedia Subsystem) and PS (Packet Switching) streaming services.

[0180] As an embodiment, the UE201 corresponds to the first node in this application.

[0181] As an embodiment, the gNB203 corresponds to the second node in this application.

[0182] As an embodiment, the gNB203 is a macro cell base station.

[0183] As an embodiment, the gNB203 is a micro cell base station.

[0184] As an embodiment, the gNB203 is a pico cell base station.

[0185] As an embodiment, the gNB203 is a home base station (Femtocell).

[0186] As an embodiment, the gNB203 is a base station device that supports large delay difference.

[0187] As an embodiment, the gNB203 is a flying platform device.

[0188] As an embodiment, the gNB203 is a satellite device.

[0189] As an embodiment, the gNB203 is a base station device that supports large delay difference.

[0190] As an embodiment, the gNB203 is a testing device (e.g., a transceiver that simulates some functions of a base station, a signaling tester).

[0191] As an embodiment, the wireless link from the UE201 to the gNB203 is an uplink, and the uplink is used to perform uplink transmission.

[0192] As an embodiment, the wireless link from the gNB203 to the UE201 is a downlink, and the downlink is used to perform downlink transmission.

[0193] As an embodiment, the wireless link between the UE 201 and the UE 241 is a secondary link, and the secondary link is used to perform secondary link transmission.

[0194] As an embodiment, the UE201 and the gNB203 are connected via a Uu air interface.

[0195] As an embodiment, the UE201 and the UE241 are connected via a PC5 air interface.

[0196] Example 3

[0197] Embodiment 3 illustrates a schematic diagram of a wireless protocol architecture of a user plane and a control plane according to an embodiment of the present application, as shown in the attached figure. Figure 3 shown. Figure 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300, Figure 3The radio protocol architecture of the control plane 300 of the UE and gNB is shown in three layers: Layer 1, Layer 2, and Layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to as PHY 301 in this article. Layer 2 (L2 layer) 305 is above PHY 301 and is responsible for the link between the UE and the gNB through PHY 301. The L2 layer 305 includes the MAC (Medium Access Control) sublayer 302, the RLC (Radio Link Control) sublayer 303, and the PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the gNB on the network side. The PDCP sublayer 304 provides data encryption and integrity protection. The PDCP sublayer 304 also provides support for inter-zone mobility of UEs between gNBs. The RLC sublayer 303 provides segmentation and reassembly of data packets, and retransmission of lost data packets through ARQ. The RLC sublayer 303 also provides duplicate data packet detection and protocol error detection. The MAC sublayer 302 provides mapping between logical and transport channels and multiplexing of logical channel identities. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in a cell between UEs. The MAC sublayer 302 is also responsible for HARQ (Hybrid Automatic Repeat Request) operations. The RRC (Radio Resource Control) sublayer 306 in Layer 3 (L3 layer) in the control plane 300 is responsible for obtaining radio resources (i.e., radio bearers) and configuring the lower layers using RRC signaling between the gNB and the UE. The wireless protocol architecture of the user plane 350 includes layer 1 (L1 layer) and layer 2 (L2 layer). The wireless protocol architecture in the user plane 350 is substantially the same as the corresponding layers and sublayers in the control plane 300 for the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355, and the MAC sublayer 352 in the L2 layer 355, but the PDCP sublayer 354 also provides header compression for upper layer data packets to reduce wireless transmission overhead. The L2 layer 355 in the user plane 350 also includes a SDAP (Service Data Adaptation Protocol) sublayer 356, which is responsible for mapping between QoS flows and data radio bearers (DRBs) to support the diversity of services. The wireless protocol architecture of the UE in the user plane 350 may include, at the L2 layer, a SDAP sublayer 356 , a PDCP sublayer 354 , some or all protocol sublayers of the RLC sublayer 353 and the MAC sublayer 352 .Although not shown, the UE may also have several upper layers above the L2 layer 355, including a network layer (e.g., an IP layer) terminated at the P-GW on the network side and an application layer terminated at the other end of the connection (e.g., a remote UE, a server, etc.).

[0198] As an example, Figure 3 The wireless protocol architecture in is applicable to the first node in this application.

[0199] As an example, Figure 3 The wireless protocol architecture in is applicable to the second node in this application.

[0200] As an embodiment, the first RRC message in the present application is generated in the RRC306.

[0201] As an embodiment, the first information in the present application is generated by the MAC302.

[0202] As an embodiment, the first information in the present application is generated by the MAC352.

[0203] As an embodiment, the first information in the present application is generated by the PHY301.

[0204] As an embodiment, the first information in the present application is generated by the PHY351.

[0205] As an embodiment, the first message in the present application is generated by the PHY301.

[0206] As an embodiment, the first message in the present application is generated by the PHY351.

[0207] As an embodiment, the second signal in the present application is generated by the PHY 301 .

[0208] As an embodiment, the second signal in the present application is generated by the PHY 351 .

[0209] As an embodiment, the first signal in the present application is generated by the PHY 301 .

[0210] As an embodiment, the first signal in the present application is generated by the PHY 351 .

[0211] As an embodiment, the first bit set in the present application is generated by the MAC 302 .

[0212] As an embodiment, the first bit set in the present application is generated by the MAC352.

[0213] As an embodiment, the second bit set in the present application is generated by the MAC 302 .

[0214] As an embodiment, the second bit set in the present application is generated by the MAC352.

[0215] As an embodiment, the second bit set in the present application is generated by the RLC303.

[0216] As an embodiment, the second bit set in the present application is generated by the RLC353.

[0217] As an embodiment, the second bit set in the present application is generated by the PDCP 304 .

[0218] As an embodiment, the second bit set in the present application is generated by the PDCP354.

[0219] As an embodiment, the RRC sublayer 306 in the L3 layer belongs to a higher layer.

[0220] Example 4

[0221] Embodiment 4 illustrates a hardware module schematic diagram of a communication device according to an embodiment of the present application, as shown in the attached Figure 4 shown. Figure 4 is a block diagram of a first communication device 450 and a second communication device 410 communicating with each other in an access network.

[0222] The first communication device 450 includes a controller / processor 459, a memory 460, a data source 467, a transmit processor 468, a receive processor 456, a multi-antenna transmit processor 457, a multi-antenna receive processor 458, a transmitter / receiver 454 and an antenna 452.

[0223] The second communication device 410 includes a controller / processor 475, a memory 476, a data source 477, a receive processor 470, a transmit processor 416, a multi-antenna receive processor 472, a multi-antenna transmit processor 471, a transmitter / receiver 418 and an antenna 420.

[0224] In the transmission from the second communication device 410 to the first communication device 450, at the second communication device 410, the upper layer data packets from the core network or the upper layer data packets from the data source 477 are provided to the controller / processor 475. The core network and the data source 477 represent all the protocol layers above the L2 layer. The controller / processor 475 implements the functionality of the L2 layer. In the transmission from the second communication device 410 to the first communication device 450, the controller / processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the first communication device 450 based on various priority metrics. The controller / processor 475 is also responsible for the retransmission of lost packets and signaling to the first communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the L1 layer (i.e., the physical layer). The transmit processor 416 implements coding and interleaving to facilitate forward error correction (FEC) at the second communication device 410, as well as mapping of signal constellations based on various modulation schemes (e.g., binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), M-phase shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM)). The multi-antenna transmit processor 471 performs digital spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing on the coded and modulated symbols to generate one or more spatial streams. The transmit processor 416 then maps each spatial stream to a subcarrier, multiplexes it with a reference signal (e.g., a pilot) in the time domain and / or frequency domain, and then uses an inverse fast Fourier transform (IFFT) to generate a physical channel carrying a time-domain multi-carrier symbol stream. The multi-antenna transmit processor 471 then performs a transmit analog precoding / beamforming operation on the time-domain multi-carrier symbol stream. Each transmitter 418 converts the baseband multi-carrier symbol stream provided by the multi-antenna transmit processor 471 into a radio frequency stream, and then provides it to a different antenna 420.

[0225] In the transmission from the second communication device 410 to the first communication device 450, at the first communication device 450, each receiver 454 receives a signal through its corresponding antenna 452. Each receiver 454 recovers the information modulated onto the RF carrier and converts the RF stream into a baseband multi-carrier symbol stream and provides it to the receiving processor 456. The receiving processor 456 and the multi-antenna receiving processor 458 implement various signal processing functions of the L1 layer. The multi-antenna receiving processor 458 performs a receiving analog precoding / beamforming operation on the baseband multi-carrier symbol stream from the receiver 454. The receiving processor 456 uses a fast Fourier transform (FFT) to convert the baseband multi-carrier symbol stream after the receiving analog precoding / beamforming operation from the time domain to the frequency domain. In the frequency domain, the physical layer data signal and the reference signal are demultiplexed by the receiving processor 456, wherein the reference signal will be used for channel estimation, and the data signal is recovered after multi-antenna detection in the multi-antenna receiving processor 458 to any spatial stream destined for the first communication device 450. The symbols on each spatial stream are demodulated and recovered in the receiving processor 456, and soft decisions are generated. The receiving processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals transmitted by the second communication device 410 on the physical channel. The upper layer data and control signals are then provided to the controller / processor 459. The controller / processor 459 implements the functions of the L2 layer. The controller / processor 459 may be associated with a memory 460 that stores program codes and data. The memory 460 may be referred to as a computer-readable medium. In the transmission from the second communication device 410 to the first communication device 450, the controller / processor 459 provides multiplexing between transport and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover higher layer data packets from the second communication device 410. The upper layer data packets are then provided to all protocol layers above the L2 layer. Various control signals may also be provided to the L3 for L3 processing.

[0226] In the transmission from the first communication device 450 to the second communication device 410, at the first communication device 450, the upper layer data packets are provided to the controller / processor 459 using the data source 467. The data source 467 represents all the protocol layers above the L2 layer. Similar to the transmission function at the second communication device 410 described in the transmission from the second communication device 410 to the first communication device 450, the controller / processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels, and implements L2 layer functions for user plane and control plane. The controller / processor 459 is also responsible for the retransmission of lost packets and signaling to the second communication device 410. The transmit processor 468 performs modulation mapping and channel coding processing, and the multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing. Then, the transmit processor 468 modulates the generated spatial stream into a multi-carrier / single-carrier symbol stream, which is then provided to different antennas 452 via the transmitter 454 after analog precoding / beamforming operations in the multi-antenna transmit processor 457. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a radio frequency symbol stream, and then provides it to the antenna 452.

[0227] In the transmission from the first communication device 450 to the second communication device 410, the functions at the second communication device 410 are similar to the reception functions at the first communication device 450 described in the transmission from the second communication device 410 to the first communication device 450. Each receiver 418 receives a radio frequency signal through its corresponding antenna 420, converts the received radio frequency signal into a baseband signal, and provides the baseband signal to the multi-antenna reception processor 472 and the reception processor 470. The reception processor 470 and the multi-antenna reception processor 472 jointly implement the functions of the L1 layer. The controller / processor 475 implements the L2 layer functions. The controller / processor 475 can be associated with a memory 476 that stores program codes and data. The memory 476 can be referred to as a computer-readable medium. In the transmission from the first communication device 450 to the second communication device 410, the controller / processor 475 provides multiplexing between transport and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover the upper layer data packets from the first communication device 450. The upper layer data packets from the controller / processor 475 may be provided to the core network or all protocol layers above the L2 layer, and various control signals may also be provided to the core network or L3 for L3 processing.

[0228] As an embodiment, the first communication device 450 apparatus includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor, and the first communication device 450 apparatus at least: receives a first RRC message, the first RRC message is used to indicate a first random access resource set, the first random access resource set includes at least one random access resource; receives first information at a protocol layer below the RRC layer, the first information is used to indicate a second random access resource set, the second random access resource set includes at least one random access resource; determines a target random access resource set at least according to a triggering event of the first message, sends the first message, the first message occupies a first random access resource, the first random access resource is a random access resource in the target random access resource set; wherein any random access resource in the first random access resource set and the second random access resource set includes a time-frequency resource that accommodates at least one random access pilot; the target random access resource set is one of the first random access resource set and the second random access resource set, and the first message includes a random access pilot.

[0229] As an embodiment, the first communication device 450 apparatus includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generates an action when executed by at least one processor, the action including: receiving a first RRC message, the first RRC message is used to indicate a first random access resource set, the first random access resource set includes at least one random access resource; receiving first information at a protocol layer below the RRC layer, the first information is used to indicate a second random access resource set, the second random access resource set includes at least one random access resource; determining a target random access resource set based at least on a triggering event of the first message, sending the first message, the first message occupying a first random access resource, the first random access resource being a random access resource in the target random access resource set; wherein any random access resource in the first random access resource set and the second random access resource set includes a time-frequency resource that accommodates at least one random access pilot; the target random access resource set is one of the first random access resource set and the second random access resource set, and the first message includes a random access pilot.

[0230] As an embodiment, the second communication device 410 device includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor. The second communication device 410 device at least: sends a first RRC message, the first RRC message is used to indicate a first random access resource set, the first random access resource set includes at least one random access resource; sends first information at a protocol layer below the RRC layer, the first information is used to indicate a second random access resource set, the second random access resource set includes at least one random access resource; receives a first message, the first message occupies a first random access resource, the first random access resource is a random access resource in a target random access resource set; wherein the target random access resource set is determined at least according to a triggering event of the first message; any random access resource in the first random access resource set and the second random access resource set includes a time-frequency resource that accommodates at least one random access pilot; the target random access resource set is one of the first random access resource set and the second random access resource set, and the first message includes a random access pilot.

[0231] As an embodiment, the second communication device 410 apparatus includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generates an action when executed by at least one processor, the action including: sending a first RRC message, the first RRC message is used to indicate a first random access resource set, the first random access resource set includes at least one random access resource; sending a first information at a protocol layer below the RRC layer, the first information is used to indicate a second random access resource set, the second random access resource set includes at least one random access resource; receiving a first message, the first message occupies a first random access resource, the first random access resource is a random access resource in a target random access resource set; wherein the target random access resource set is determined at least according to a triggering event of the first message; any random access resource in the first random access resource set and the second random access resource set includes a time-frequency resource that accommodates at least one random access pilot; the target random access resource set is one of the first random access resource set and the second random access resource set, and the first message includes a random access pilot.

[0232] As an embodiment, the first communication device 450 corresponds to the first node in the present application, and the second communication device 410 corresponds to the second node in the present application.

[0233] As an embodiment, the first communication device 450 is a UE.

[0234] As an embodiment, the first communication device 450 is a RSU (Road Side Unit).

[0235] As an embodiment, the first communication device 410 is a relay node.

[0236] As an embodiment, the second communication device 410 is a base station.

[0237] As an embodiment, at least one of the antenna 452, the receiver 454, the multi-antenna reception processor 458, the reception processor 456 or the controller / processor 459 is used to receive the first RRC message in the present application.

[0238] As an embodiment, at least one of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416 or the controller / processor 475 is used to send the first RRC message in the present application.

[0239] As an embodiment, at least one of the antenna 452, the receiver 454, the multi-antenna reception processor 458, the reception processor 456 or the controller / processor 459 is used to receive the first information in the present application.

[0240] As an embodiment, at least one of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416 or the controller / processor 475 is used to send the first information in the present application.

[0241] As an embodiment, at least one of the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468 or the controller / processor 459 is used to send the first message in the present application.

[0242] As an embodiment, at least one of the antenna 420, the receiver 418, the multi-antenna reception processor 472, the reception processor 470 or the controller / processor 475 is used to receive the first message in the present application.

[0243] As an embodiment, at least one of the antenna 452, the receiver 454, the multi-antenna reception processor 458, the reception processor 456 or the controller / processor 459 is used to receive the first signal in the present application.

[0244] As an embodiment, at least one of the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, the transmit processor 416 or the controller / processor 475 is used to send the first signal in the present application.

[0245] Example 5

[0246] Embodiment 5 illustrates a wireless signal transmission flow chart according to an embodiment of the present application, as shown in the attached Figure 5 As shown in the attached Figure 5 In the embodiment, the first node U51 and the second node N52 communicate via the Uu air interface.

[0247] for First node U51 , receiving a first RRC message in step S511; receiving a first information in step S512; determining a target random access resource set according to a triggering event of the first message in step S513; sending a first message in step S514; and monitoring a first signal in a first time window in step S515.

[0248] for Second node N52 , sending a first RRC message in step S521; sending a first message in step S522; receiving a first message in step S523; and generating a first signal in a first time window in step S524.

[0249] In embodiment 5, a first RRC message is received, the first RRC message is used to indicate a first random access resource set, the first random access resource set includes at least one random access resource; a first information is received at a protocol layer below the RRC layer, the first information is used to indicate a second random access resource set, the second random access resource set includes at least one random access resource; a target random access resource set is determined at least according to a triggering event of the first message, and the first message is sent, the first message occupies a first random access resource, and the first random access resource is a random access resource in the target random access resource set; wherein any random access resource in the first random access resource set and the second random access resource set includes a time-frequency resource that accommodates at least one random access pilot; the target random access resource set is one of the first random access resource set and the second random access resource set, and the first message includes a random access pilot; the first information The information is associated with a first identifier, and the first identifier is used to indicate a first node set; the first node set includes the first node; a first signal is monitored in a first time window; wherein the first signal includes a response to the first message; the triggering event of the first message includes the arrival of uplink data and the first node is in a non-RRC connection state; wherein the uplink data includes a second bit set, and the amount of data in the second bit set is not greater than a second threshold; the triggering event of the first message includes that the first information includes a first bit set; wherein the amount of data in the first bit set is not greater than the first threshold; the time interval between the first time domain resource in the second random access resource set and the reception time of the first information is not less than a third threshold; the first message includes a second signal; wherein a second bit group is used to generate the second signal; the second bit set includes the second bit group; the random access pilot included in the first message is sent before the second signal.

[0250] As an embodiment, the second node is a serving base station of the first node.

[0251] As an embodiment, the first node is in a serving cell of the second node.

[0252] As an embodiment, the first identifier is a non-unicast identifier.

[0253] As an embodiment, the first identifier is a broadcast identifier.

[0254] As an embodiment, the first identifier is a multicast identifier.

[0255] As an embodiment, the first identifier is a multicast identifier.

[0256] As an embodiment, the phrase that the first information is associated with the first identifier includes: the first information is associated with the non-unicast identifier.

[0257] As an embodiment, the phrase, the first information being associated with a first identifier includes: the first identifier is used to generate the first information.

[0258] As an embodiment, the phrase the first information being associated with a first identifier includes: the first information includes the first identifier.

[0259] As an embodiment, the phrase "the first information" is associated with a first identifier, including: the first identifier is used to scramble the first information.

[0260] As an embodiment, the phrase "the first information" being associated with a first identifier includes: the first identifier is used to scramble a CRC (Cyclic Redundancy Check) of the first information.

[0261] As an embodiment, the phrase that the first information is associated with a first identifier includes: the first information occupies a first physical layer channel, and the first identifier is used to generate a DMRS of the first physical layer channel.

[0262] As an embodiment, the first identifier is an application ID.

[0263] As an embodiment, the first identifier is a service identifier (service ID).

[0264] As an embodiment, the first identifier is a session identifier (session ID).

[0265] As an embodiment, the first identifier is a bearer ID.

[0266] As an embodiment, the first identifier is a logical channel identifier (LCID, Logical Channel IDentifier) ​​of a non-unicast channel.

[0267] As an embodiment, the first identifier is a temporary mobile group identifier (Temporary Mobile Group Identifier, TMGI).

[0268] As an embodiment, the first identifier is a RNTI (Radio Network Temporary Identifier).

[0269] As an embodiment, the first identifier is a G-RNTI (Group-RNTI, Group-Radio Network Temporary Identifier).

[0270] As an embodiment, the first identifier is a P-RNTI (Paging-RNTI, Paging-Radio Network Temporary Identifier).

[0271] As an embodiment, the first identifier is an MBMS interest indication (MBMSInterestIndication).

[0272] As an embodiment, the first identifier is a positive integer.

[0273] As an embodiment, the first identifier includes multiple bits.

[0274] As an embodiment, the first identifier includes 6 bits.

[0275] As an embodiment, the first identifier includes 8 bits.

[0276] As an embodiment, the first identifier includes 16 bits.

[0277] As an embodiment, the first identifier includes 24 bits.

[0278] As an embodiment, the first identifier includes 48 bits.

[0279] As an embodiment, the P-RNTI is used to scramble the CRC of the first information, where the first information includes the first identifier.

[0280] As an embodiment, the first identifier is used to indicate a first node set; the first node set includes the first node.

[0281] As an embodiment, any node in the first node set is within the service cell of the second node.

[0282] As an embodiment, the first node set includes at least one node.

[0283] As an embodiment, the first identifier is used to indicate the second random access resource set.

[0284] As an embodiment, a first signal is monitored in a first time window; wherein the first signal includes a response to the first message.

[0285] As an embodiment, the phrase monitoring the first signal in the first time window includes: reception based on blind detection in the first time window, that is, the first node receives the signal in the first time window and performs a decoding operation. If the decoding is determined to be correct based on the CRC bit check, it is determined that the first signal is detected in the first time window; otherwise, it is determined that the first signal is not detected in the first time window.

[0286] As an embodiment, the phrase monitoring the first signal in the first time window includes: reception based on coherent detection in the first time window, that is, the first node coherently receives the wireless signal using the DMRS sequence of the first signal in the first time window, and measures the energy of the signal obtained after the coherent reception; if the energy of the signal obtained after the coherent reception is greater than a first given threshold, it is determined that the first signal is detected in the first time window; otherwise, it is determined that the first signal is not detected in the first time window.

[0287] As an embodiment, the phrase monitoring a first signal in a first time window includes: reception based on energy detection in the first time window, that is, the first node senses (Sense) the energy of the wireless signal in the first time window and averages it over time to obtain the received energy; if the received energy is greater than a second given threshold, it is determined that the first signal is detected in the first time window; otherwise, it is determined that the first signal is not detected in the first time window.

[0288] As an embodiment, when the first signal is not detected in the first time window, the first message is not correctly received by the second node in the present application.

[0289] As an embodiment, the first signal includes Msg2 (Message 2) in the random access process.

[0290] As an embodiment, the first signal includes MsgB (Message B) in the random access process.

[0291] As an embodiment, the first signal is transmitted at the Uu port.

[0292] As an embodiment, the first signal is a wireless signal.

[0293] As an embodiment, the first signal includes a first type of sub-signaling set, and the first type of sub-signaling set includes a positive integer number of first type sub-signals.

[0294] As an embodiment, the first signal includes a first-category sub-signaling set and a first-category sub-signal set, the first-category sub-signaling set includes a positive integer number of first-category sub-signals, and the first-category sub-signal set includes a positive integer number of first-category sub-signals.

[0295] As an embodiment, the first message does not include the second signal.

[0296] As an embodiment, the second signal is sent after the first signal; the first signal includes a configuration message of the second signal; and the configuration message includes at least one of a time-frequency resource or a modulation and demodulation mode used to send the second signal.

[0297] As an embodiment, the positive integer is no greater than 64.

[0298] As an embodiment, the positive integer is no greater than 256.

[0299] As an embodiment, the channel occupied by the first type of sub-signaling is PDCCH (Physical Downlink Control Channel).

[0300] As an embodiment, the channel occupied by the first type of sub-signals is PDSCH (Physical Downlink Shared Channel).

[0301] As an embodiment, the first type of sub-signaling includes DCI.

[0302] As an embodiment, the first type of sub-signal includes a backoff indicator (BI).

[0303] As an embodiment, the first type of sub-signal includes RAPID (Random Access Preamble IDentifier).

[0304] As an embodiment, the first type of sub-signal includes a RAR (Random Access Response) message.

[0305] As an embodiment, the RAR message includes successRAR (successful random access response).

[0306] As an embodiment, the RAR message includes fallbackRAR (fallback random access response).

[0307] As an embodiment, the definition of successRAR refers to 3GPP TS38.321.

[0308] As an embodiment, the definition of fallbackRAR refers to 3GPP TS38.321.

[0309] As an embodiment, the first type of sub-signal includes a timing adjustment command (Timing Advance Command).

[0310] As an embodiment, the first type of sub-signal includes an uplink grant (Uplink Grant).

[0311] As an embodiment, the phrase "the first signal" includes a response to the first message, including: the first signal and the first message belong to the same random access process.

[0312] As an embodiment, the phrase "the first signal" includes a response to the first message, including: the first type of sub-signaling included in the first signal includes RA-RNTI (Random Access-Radio Network Temporary Identifier), and the RA-RNTI is calculated based on the first random access resource; the first message occupies the first random access resource.

[0313] As an embodiment, the phrase "the first signal" includes a response to the first message, including: the first type of sub-signaling included in the first signal includes MsgB-RNTI (Message B-Radio Network Temporary Identifier), and the MsgB-RNTI is calculated based on the first random access resource; the first message occupies the first random access resource.

[0314] As an embodiment, the RA-RNTI=1+s_id+14×t_id+14×80×f_id+14×80×8×ul_carrier_id.

[0315] As an embodiment, the MsgB-RNTI=1+s_id+14×t_id+14×80×f_id+14×80×8×ul_carrier_id+14×80×8×2.

[0316] As an embodiment, in the above two formulas, the time domain resources and frequency domain resources included in the first random access resource are a PRO (PRACH occasion), and the PRO is used to send the random access pilot included in the first message; wherein s_id is the index of the first OFDM (Orthogonal Frequency Division Multiplexing) symbol in the PRO, and the value of s_id satisfies 0≤s_id<14, t_id is the index of the first time slot in the PRO, and the value of t_id satisfies 0≤t_id<80, f_id is the index of the PRO in the frequency domain, and the value of f_id satisfies 0≤f_id<8, ul_carrier_id is the uplink carrier used to send the random access preamble, and the value 0 represents the NUL (Normal Uplink) carrier, and 1 represents the SUL (Supplementary Uplink) carrier.

[0317] As an embodiment, the phrase "the first signal" includes a response to the first message, including: the first message includes a random number, the first type of sub-signal included in the first signal includes a user equipment conflict resolution identifier (UE Contention Resolution Identity), and the value of the user equipment conflict resolution identifier is the same as the value of the random number included in the first message.

[0318] As an embodiment, the phrase "the first signal" includes a response to the first message including: the first message includes an I-RNTI (Inactive-Radio Network Temporary Identifier), and the first signal includes a first type of sub-signaling encrypted by the I-RNTI.

[0319] As an embodiment, the phrase "the first signal" includes a response to the first message including: the first message includes a ShortI-RNTI (Short Inactive-Radio Network Temporary Identifier), and the first signal includes a first type of sub-signaling encrypted by the ShortI-RNTI.

[0320] As an embodiment, the phrase "the first signal" includes a response to the first message including: the first message includes a C-RNTI (Cell-Radio Network Temporary Identifier), and the first signal includes a first type of sub-signaling encrypted by the C-RNTI.

[0321] As an embodiment, the phrase "the first signal" includes a response to the first message including: the first message includes a preamble, and the first signal includes a first type of sub-signal whose payload includes an identifier RAPID of the preamble.

[0322] As an embodiment, the phrase "the first signal" includes a response to the first message including: the first message includes an I-RNTI, and a payload of a first type of sub-signal included in the first signal includes the I-RNTI.

[0323] As an embodiment, the phrase "the first signal" includes a response to the first message including: the first message includes a ShortI-RNTI, and a payload of a first type of sub-signal included in the first signal includes the ShortI-RNTI.

[0324] As an embodiment, the triggering event of the first message includes the arrival of uplink data and the first node being in a non-RRC connected state.

[0325] As an embodiment, the triggering event of the first message includes the arrival of uplink data and the first node being in an RRC idle state.

[0326] As an embodiment, the triggering event of the first message includes the arrival of uplink data and the first node is in an RRC inactive state and the uplink synchronization state is "out of synchronization".

[0327] As an embodiment, the uplink data includes the second bit set.

[0328] As an embodiment, all bits included in the uplink data are all bits included in the second bit set.

[0329] As an embodiment, the data amount of the uplink data is the data amount of the second bit set.

[0330] As an embodiment, the data amount of the second bit set is not greater than a second threshold.

[0331] As an embodiment, the data amount of the second bit set is less than the second threshold.

[0332] As an embodiment, the second bit set includes at least one bit.

[0333] As an embodiment, the second bit set includes at least one byte.

[0334] As an embodiment, the second bit set includes all currently cached bits.

[0335] As an embodiment, the second bit set includes all bits currently cached in the MAC sublayer.

[0336] As an embodiment, the second bit set includes all bits currently cached in the MAC sublayer and the RLC sublayer.

[0337] As an embodiment, the second bit set includes all bits currently cached in the MAC sublayer, RLC sublayer and PDCP sublayer.

[0338] As an embodiment, the data amount of the second bit set includes the number of bits of all bits included in the second bit set.

[0339] As an embodiment, the data amount of the second bit set includes a value obtained by dividing the number of all bits included in the second bit set by 8.

[0340] As an embodiment, the data amount of the second bit set is expressed in bits.

[0341] As an embodiment, the data amount of the second bit set is expressed in bytes.

[0342] As an embodiment, the triggering event of the first message includes the arrival of uplink data and the first node being in a non-RRC connection state; the target random access resource set is determined based on the triggering event of the first message and the data volume of the uplink data.

[0343] As an embodiment, when the triggering event of the first message includes the arrival of uplink data and the first node is in a non-RRC connection state, and the data volume of the uplink data is not greater than the second threshold, the target random access resource set is determined to be the second random access resource set.

[0344] As an embodiment, when the triggering event of the first message includes the arrival of uplink data and the first node is in a non-RRC connection state, and the data volume of the uplink data is less than the second threshold, the target random access resource set is determined to be the second random access resource set.

[0345] As an embodiment, when the triggering event of the first message includes the arrival of uplink data and the first node is in a non-RRC connection state, and the data volume of the uplink data is greater than the second threshold, the target random access resource set is determined to be the first random access resource set.

[0346] As an embodiment, the triggering event of the first message includes the arrival of uplink data and the first node being in a non-RRC connection state; the target random access resource set is determined based on the triggering event of the first message, the first channel state and the data amount of the uplink data.

[0347] As an embodiment, when the triggering event of the first message includes the arrival of uplink data and the first node is in a non-RRC connected state, and the RSRP (Reference Signal Received Power) value included in the first channel state is not less than a first threshold, and the data volume of the uplink data is not greater than the second threshold, the target random access resource set is determined to be the second random access resource set.

[0348] As an embodiment, when the triggering event of the first message includes the arrival of uplink data and the first node is in a non-RRC connected state, and the RSRP value included in the first channel is not less than a first threshold, and the data volume of the uplink data is less than the second threshold, the target random access resource set is determined to be the second random access resource set.

[0349] As an embodiment, the first channel state includes RSRP.

[0350] As an embodiment, the first channel status includes RSSI (Received Signal Strength Indicator).

[0351] As an embodiment, the first channel state includes RSRQ (Reference Signal Received Quality).

[0352] As an embodiment, the RSRQ is obtained according to RSRP, RSSI and the method described in Section 5.1 of the 3GPP standard 38.215 protocol.

[0353] As an embodiment, the first node obtains the RSRP by measuring the SS (Synchronization Signal) sent by the serving base station of the first node.

[0354] As an embodiment, the first node obtains the RSRP by measuring the DMRS of the PBCH (Physical Broadcast Channel) sent by the serving base station of the first node.

[0355] As an embodiment, the first channel state is a channel state between the first node and a serving base station of the first node.

[0356] As an embodiment, the first node obtains the first channel state through measurement.

[0357] As an embodiment, the first node receives the first channel state sent by the serving base station of the first node.

[0358] As an embodiment, the first threshold is configured by the network.

[0359] As an embodiment, the first threshold is preconfigured.

[0360] As an embodiment, the second bit set includes the second bit group.

[0361] As an embodiment, all bits included in the second bit set belong to the second bit group.

[0362] As an embodiment, at least one bit included in the second bit set does not belong to the second bit group.

[0363] As an embodiment, the second bit group is used to generate the second signal.

[0364] As an embodiment, any bit included in the second bit group belongs to the same MAC SDU.

[0365] As an embodiment, all or part of the bits included in the second bit group are sequentially subjected to CRC calculation (CRC Calculation), channel coding (Channel Coding), rate matching (Rate matching), scrambling (Scrambling), modulation (Modulation), layer mapping (Layer Mapping), antenna port mapping (Antenna Port Mapping), mapping to virtual resource blocks (Mapping to Virtual Resource Blocks), mapping from virtual resource blocks to physical resource blocks (Mapping from Virtual to Physical Resource Blocks), OFDM baseband signal generation (OFDM Baseband Signal Generation), and modulation upconversion (Modulation and Upconversion) to obtain the second signal.

[0366] As an embodiment, the second threshold is configured by the network.

[0367] As an embodiment, the second threshold is pre-configured.

[0368] As an embodiment, the second threshold is a fixed value.

[0369] As an embodiment, the second threshold is specified by a standard.

[0370] As an embodiment, the second threshold is expressed in bytes.

[0371] As an embodiment, the triggering event of the first message includes receiving the first information.

[0372] As an embodiment, the triggering event of the first message includes that the first information includes a first bit set.

[0373] As an embodiment, the data amount of the first bit set is not greater than a first threshold.

[0374] As an embodiment, the data amount of the first bit set is smaller than the first threshold.

[0375] As an embodiment, the first threshold is configured by the network.

[0376] As an embodiment, the first threshold is preconfigured.

[0377] As an embodiment, the first threshold is a fixed value.

[0378] As an embodiment, the first threshold is defined by a standard.

[0379] As an embodiment, the first threshold is expressed in bytes.

[0380] As an embodiment, the first threshold is greater than the second threshold.

[0381] As an embodiment, the first threshold is smaller than the second threshold.

[0382] As an embodiment, the first threshold is equal to the second threshold.

[0383] As an embodiment, when the triggering event of the first message includes receiving the first information, the target random access resource set is determined to be the second random access resource set.

[0384] As an embodiment, the triggering event of the first message includes that the first information includes a first bit set; and the target random access resource set is determined according to the triggering event of the first message and the first channel state.

[0385] As an embodiment, when the triggering event of the first message includes that the first information includes a first bit set, and the RSRP value included in the first channel state is not less than the first threshold, the target random access resource set is determined to be the second random access resource set.

[0386] As an embodiment, when the triggering event of the first message includes that the first information includes a first bit set, and the RSRP value included in the first channel state is less than the first threshold, the target random access resource set is determined to be the first random access resource set.

[0387] As an embodiment, the time interval between the first time domain resource in the second random access resource set and the reception time of the first information is not less than a third threshold.

[0388] As an embodiment, the third threshold is configured by the network.

[0389] As an embodiment, the third threshold is preconfigured.

[0390] As an embodiment, the third threshold is a fixed value.

[0391] As an embodiment, the third threshold is defined by the standard.

[0392] As an embodiment, the third threshold is represented by a multi-carrier symbol.

[0393] As an embodiment, the third threshold is expressed in time slots.

[0394] As an embodiment, the third threshold is expressed in subframes.

[0395] As an embodiment, the third threshold is expressed in milliseconds (ms).

[0396] As an embodiment, the third threshold is determined by a longest time interval of uplink feedback of the first bit set included in the first information.

[0397] As an embodiment, the third threshold is determined by a longest time interval for uplink feedback of the first information.

[0398] As an embodiment, the first signal includes an acknowledgment message ACK (Acknowledgement) indicating that the second bit set is correctly received.

[0399] As an embodiment, when the second bit group includes I-RNTI, the first signal is scrambled by the I-RNTI, the first signal includes ACK, and the second bit group is correctly received.

[0400] As an embodiment, when the second bit group includes ShortI-RNTI, the first signal is scrambled by the ShortI-RNTI, the first signal includes ACK, and the second bit group is correctly received.

[0401] As an embodiment, when the second bit group includes TC-RNTI, the first signal is scrambled by the TC-RNTI, the first signal includes ACK, and the second bit group is correctly received.

[0402] As an embodiment, when the second bit group includes C-RNTI, the first signal is scrambled by the C-RNTI, the first signal includes ACK, and the second bit group is correctly received.

[0403] As an embodiment, when the first message includes a random access pilot, the first signal includes a RAPID corresponding to the random access pilot, the first signal includes ACK, and the second bit group is correctly received.

[0404] Example 6

[0405] Embodiment 6 illustrates a schematic diagram of a first information structure according to an embodiment of the present application, as shown in the attached Figure 6 shown.

[0406] As an embodiment, the first information includes a control information part and a data information part.

[0407] As an embodiment, the control information part of the first information includes a first DCI.

[0408] As an embodiment, the control information part of the first information is the first DCI.

[0409] As an embodiment, the first DCI includes a configuration message of the data information part of the first information; the configuration message includes at least one of time-frequency resources or modulation and demodulation modes.

[0410] As an embodiment, the phrase "the first information" being associated with a first identifier includes: the first identifier is used to scramble the CRC of the control information part of the first information.

[0411] As an embodiment, the phrase "the first information" is associated with a first identifier, including: the first identifier is used to scramble the control information part of the first information.

[0412] As an embodiment, the phrase "the first information" is associated with a first identifier, including: the first identifier is used to scramble the data information part of the first information.

[0413] As an embodiment, the phrase "the first information" is associated with a first identifier, including: the first identifier is a payload of the first information; and the first identifier is not used to scramble the first information.

[0414] As an embodiment, the phrase "the first information" being associated with the first identifier includes: the data information part of the first information includes a MAC CE, and the MAC CE includes the first identifier.

[0415] As an embodiment, the data information part of the first information belongs to a MAC PDU.

[0416] As an embodiment, the control information part of the first information includes 1 bit for activating the second random access resource set; the second random access resource set is preconfigured by the network.

[0417] As an embodiment, the control information part of the first information includes a second random access resource set index for activating the second random access resource set; the second random access resource set is preconfigured by the network; and the second random access resource set index is used to indicate the second random access resource set.

[0418] As an embodiment, the data information part of the first information includes the second random access resource set.

[0419] As an embodiment, the data information part of the first information includes a bitmap, and 1 bit in the bitmap is used to activate the second random access resource set; the second random access resource set is preconfigured by the network.

[0420] As an embodiment, the bit map includes Q bits, corresponding to Q random access resource subsets respectively; a bit in the bit map is set to 1 to indicate that the random access resource subset corresponding to the bit map is activated, and a bit in the bit map is set to 0 to indicate that the random access resource subset corresponding to the bit map is not activated; the Q random access resource subsets belong to the second random access resource set; specifically, the highest bit in the bit map, i.e., the Q-1th bit, is set to 1 to indicate that the Qth random access resource subset is activated, the second highest bit in the bit map, i.e., the Q-2th bit, is set to 1 to indicate that the Q-1th random access resource subset is activated, and so on, the lowest bit in the bit map, i.e., the 0th bit, is set to 1 to indicate that the first random access resource subset is activated; the random access resource subset belongs to the second random access resource set.

[0421] As an embodiment, Q is 4.

[0422] As an embodiment, Q is 6.

[0423] As an embodiment, Q is 8.

[0424] As an embodiment, the data information part of the first information includes a first MAC CE, the first MAC CE includes a first index, and the first index is used to indicate the second random access resource set.

[0425] As an embodiment, the data information part of the first information includes a first MAC SDU, and the first bit set is used to generate the first MAC SDU; the first MAC SDU is identified by a first logical channel identifier; and the first logical channel identifier is used to implicitly indicate the second random access resource set.

[0426] As an embodiment, the phrase "the first logical channel identifier" is used to implicitly indicate that the second random access resource set includes: the second random access resource set is used to send uplink data, and the uplink data belongs to the logical channel identified by the first logical channel identifier.

[0427] As an embodiment, the phrase "the first logical channel identifier" is used to implicitly indicate that the second random access resource set includes: the second random access resource set is used to send uplink data, and the uplink data belongs to the RLC bearer identified by the first logical channel identifier.

[0428] As an embodiment, the data information part of the first information includes the first MAC CE and the first MAC SDU, the first MAC CE includes the first index, the first index is used to indicate the second random access resource set; the first bit set is used to generate the first MAC SDU; the first MAC SDU is identified by a first logical channel identifier.

[0429] As an embodiment, the second bit group is sent through the logical channel identified by the first logical channel identifier.

[0430] In case A of embodiment 6, the first information includes the second random access resource set.

[0431] In case B of Example 6, the first information includes the first identifier.

[0432] In case C of embodiment 6, the first information includes the first bit set; the first bit set belongs to a MAC SDU, and the MAC SDU is identified by the first logical channel identifier.

[0433] In situation D of Example 6, the first information includes the first identifier and the first bit set; the first bit set belongs to a MAC SDU; and the MAC SDU is identified by the first logical channel identifier.

[0434] As an embodiment, the first information includes the second random access resource set, a first identifier and the first bit set; the first identifier is used to indicate the first node set; the first bit set belongs to a MAC SDU; and the MAC SDU is identified by the first logical channel identifier.

[0435] As an embodiment, the first information includes a paging message.

[0436] As an embodiment, the first information and a paging message belong to the same MAC PDU.

[0437] As an embodiment, the first information is sent via broadcasting.

[0438] As an embodiment, the first information is sent via multicast.

[0439] As an embodiment, the first information is sent via multicast.

[0440] Example 7

[0441] Embodiment 7 illustrates a schematic diagram of the time relationship between the first information and the second random access resource set according to an embodiment of the present application, as shown in the attached figure. Figure 7 Attached Figure 7 In the figure, the dotted frame represents the second random access resource set; the rectangle with a forward slash in the dotted frame represents at least one random access resource.

[0442] As an embodiment, the target random access resource set is the second random access resource set.

[0443] As an embodiment, the first time domain resource included in the second random access resource set is the earliest time domain resource included in the second random access resource set.

[0444] As an embodiment, the starting time of the first time domain resource in the second random access resource set is the starting time of the second random access resource set.

[0445] As an embodiment, the receiving time of the first information is the receiving end time of the first information.

[0446] As an embodiment, the end time of receiving the first information is the end time of the time slot for receiving the first information.

[0447] As an embodiment, the reception end time of the first information is the end time of receiving the multi-carrier symbol of the first information.

[0448] As an embodiment, the receiving time of the first information is the starting time of receiving the first information.

[0449] As an embodiment, the receiving start time of the first information is the starting time of the time slot for receiving the first information.

[0450] As an embodiment, the receiving start time of the first information is the starting time of receiving the multi-carrier symbol of the first information.

[0451] As an embodiment, the phrase "the time interval between the first time domain resource in the second random access resource set and the receiving time of the first information is not less than a third threshold" includes: the time interval between the starting time of the first time domain resource in the second random access resource set and the receiving time of the first information is not less than the third threshold.

[0452] As an embodiment, the phrase "the time interval between the first time domain resource in the second random access resource set and the receiving time of the first information is not less than a third threshold" includes: the time interval between the starting time of the first time domain resource in the second random access resource set and the receiving end time of the first information is not less than the third threshold.

[0453] As an embodiment, the phrase "the time interval between the first time domain resource in the second random access resource set and the receiving time of the first information is not less than a third threshold" includes: the time interval between the starting time of the first time domain resource in the second random access resource set and the receiving starting time of the first information is not less than the third threshold.

[0454] In situation A of embodiment 7, the time interval between the start time of the first time domain resource in the second random access resource set and the reception end time of the first information is not less than the third threshold.

[0455] In situation B of embodiment 7, the time interval between the starting time of the first time domain resource in the second random access resource set and the receiving starting time of the first information is not less than the third threshold.

[0456] As an embodiment, the second random access resource set includes a periodic random access resource subset.

[0457] Example 8

[0458] Embodiment 8 illustrates a schematic diagram of the relationship between the first message and the first signal according to an embodiment of the present application, as shown in the attached figure. Figure 8 Attached Figure 8 In the figure, the dotted box represents the first random access resource.

[0459] As an embodiment, the first signal is monitored in the first time window.

[0460] As an embodiment, monitoring of the first signal is abandoned outside the first time window.

[0461] As an embodiment, the first message includes only one random access pilot.

[0462] As an embodiment, the first message includes the second signal; and the second signal is sent via PUSCH.

[0463] As an embodiment, the starting time of the first time window is after the sending of the random access pilot included in the first message is completed.

[0464] As an embodiment, the starting time of the first time window is after the sending of the second signal included in the first message is completed.

[0465] As an embodiment, the starting time of the first time window is after the transmission of the later one of the random access pilot included in the first message and the second signal included in the first message is completed.

[0466] As an embodiment, the starting time of the first time window is the starting time of the first multi-carrier symbol included in the target control channel resource; the target control channel resource belongs to the control channel resource; the control channel resource is used to receive the control channel; and the earliest control channel resource after the last multi-carrier symbol included in the first random access resource is used to send the target control channel.

[0467] As an embodiment, the starting time of the first time window is after the time domain resources included in the first random access resources.

[0468] As an embodiment, the starting time of the first time window is after the time domain resource of the latest PO (PUSCH Occasion) included in the first random access resource.

[0469] As an embodiment, the starting time of the first time window is after the latest PUSCH time domain resource included in the first random access resource.

[0470] As an embodiment, the starting time of the first time window is after the last multi-carrier symbol included in the first random access resource.

[0471] As an embodiment, the start time of the first time window and the end time of the last multi-carrier symbol included in the first random access resource are separated by a first time offset value.

[0472] As an embodiment, the first time offset value is fixed.

[0473] As an embodiment, the first time offset value is configurable.

[0474] As an embodiment, the first time offset value is configured by the second node in the present application.

[0475] As an embodiment, the first time offset value includes a positive integer number of time slots, and the time interval of the positive integer number of time slots is determined by the subcarrier spacing of the Type 1 (Type 1)-PDCCH CSS (Common Search Space) set.

[0476] As an embodiment, the first time offset value includes a positive integer number of symbols, and the time interval of the positive integer number of symbols is determined by the subcarrier spacing of the Type1-PDCCH CSS set.

[0477] In situation A of embodiment 8, the first node sends the first message, the first message includes only one random access pilot, and the first message occupies the first random access resource; after sending the first message, the first node monitors the first signal in the first time window.

[0478] In situation B of embodiment 8, the first node sends the first message, the first message includes a random access pilot and the second signal, and the first message occupies the first random access resource; after sending the first message, the first node monitors the first signal in the first time window.

[0479] As an embodiment, the first message and the first signal belong to the same random access process.

[0480] As an embodiment, the first RRC message includes the length of the first time window.

[0481] As an embodiment, the first information includes the length of the first time window.

[0482] As an embodiment, the length of the first time window is fixed.

[0483] As an embodiment, the length of the first time window is configurable.

[0484] As an embodiment, the length of the first time window is a positive integer number of time slots.

[0485] As an embodiment, the length of the first time window is a positive integer number of multi-carrier symbols.

[0486] As an embodiment, the length of the first time window is a positive integer of milliseconds (ms).

[0487] As an embodiment, the random access pilot included in the first message is sent before the second signal.

[0488] As an embodiment, the end time of the random access pilot included in the first message is no later than the start time of the second signal.

[0489] As an embodiment, the starting time of the random access pilot included in the first message is no later than the starting time of the second signal.

[0490] As an embodiment, the end time of the random access pilot included in the first message is no later than the end time of the second signal.

[0491] As an embodiment, the end time of the random access pilot included in the first message is earlier than the start time of the second signal.

[0492] As an embodiment, the starting time of the random access pilot included in the first message is earlier than the starting time of the second signal.

[0493] As an embodiment, the end time of the random access pilot included in the first message is earlier than the end time of the second signal.

[0494] Example 9

[0495] Embodiment 9 illustrates a schematic diagram of a second random access resource set according to an embodiment of the present application, as shown in the attached figure. Fig. 9 Attached Fig. 9 The middle dotted box represents the second random access resource set; the rectangle with forward slashes in the dotted box represents PRO; the dotted box represents a detailed description of the rectangle with forward slashes in the dotted box; the rectangle with oblique grid lines in the dotted box represents the time-frequency resources for sending random access pilots included in the first random access resources; the rectangle with reverse slashes in the dotted box represents the time-frequency resources for sending PUSCH included in the first random access resources.

[0496] In Embodiment 9, the target random access resource set is the second random access resource set; and the first random access resource is a random access resource in the second random access resource set.

[0497] As an embodiment, the first random access resource set and the second random access resource set respectively include at least one PRO (PRACH Occasion).

[0498] As an embodiment, the first random access resource set includes at least one PRO and at least one PO.

[0499] As an embodiment, the second random access resource set includes at least one PRO and at least one PO.

[0500] As an embodiment, the one PRO includes one time-frequency resource block.

[0501] As an embodiment, the one PRO is used to transmit a group of random access pilots.

[0502] As an embodiment, the one PO includes a time-frequency resource block.

[0503] As an embodiment, the one PO is used to transmit PUSCH.

[0504] As an embodiment, the one PO includes at least one DMRS.

[0505] As an embodiment, the PO and a DMRS included in the PO uniquely determine a PUSCH included in the PO.

[0506] As an embodiment, the one time-frequency resource block includes one time domain resource and one frequency domain resource.

[0507] As an embodiment, the one time domain resource includes at least one multi-carrier symbol.

[0508] As an embodiment, the one time domain resource includes at least one time slot.

[0509] As an embodiment, the one time domain resource includes at least one subframe.

[0510] As an embodiment, the one time domain resource includes multiple time slots in one subframe.

[0511] As an embodiment, the duration of one subframe is 1 millisecond (ms).

[0512] As an embodiment, the duration of one time slot is determined by the subcarrier spacing (Subcarrier Spacing) of the frequency domain resources.

[0513] As an embodiment, the number of time slots M included in one subframe is determined by the subcarrier spacing of the frequency domain resources, that is, M=2μ, wherein the subcarrier spacing of the frequency domain resources is 2μ×15KHz; the value of μ is 0, 1, 2, 3, 4, 5; when the subcarrier spacing of the frequency domain resources is 15KHz, one subframe includes 1 time slot, and the duration of each time slot is 1ms; when the subcarrier spacing of the frequency domain resources is 30KHz, one subframe includes 2 time slots, and the duration of each time slot is 0.5ms; and so on.

[0514] As an embodiment, the frequency domain resource includes at least one subcarrier.

[0515] As an embodiment, the one frequency domain resource includes at least one PRB (Physical Resource Block), and the one PRB includes 12 subcarriers.

[0516] As an embodiment, the subcarrier spacing of the frequency domain resource is 1.25 KHz.

[0517] As an embodiment, the subcarrier spacing of the frequency domain resource is 5KHz.

[0518] As an embodiment, the subcarrier spacing of the frequency domain resource is 15KHz.

[0519] As an embodiment, the subcarrier spacing of the frequency domain resource is 30KHz.

[0520] As an embodiment, the subcarrier spacing of the frequency domain resource is 60KHz.

[0521] As an embodiment, the subcarrier spacing of the frequency domain resource is 120KHz.

[0522] As an embodiment, the set of code domain resources includes at least one random access pilot.

[0523] As an embodiment, the random access pilot includes a pseudo-random sequence.

[0524] As an embodiment, the random access pilot includes a Gold sequence.

[0525] As an embodiment, the random access pilot includes an M sequence.

[0526] As an embodiment, the random access pilot includes a ZC (Zadoff-chu) sequence.

[0527] In case A of embodiment 9, the second random access resource set includes only time-frequency resources for transmitting random access pilots.

[0528] In case B of embodiment 9, the second random access resource set includes time-frequency resources for transmitting a random access pilot and time-frequency resources for transmitting a PUSCH associated with the random access pilot.

[0529] As an embodiment, the second random access resource set includes at least one uplink data resource; the uplink data resource is reserved for at least one PUSCH.

[0530] As an embodiment, any random access pilot transmitted in the second random access resource set is associated with a PUSCH in the second random access resource set.

[0531] As an embodiment, any random access pilot transmitted in the second random access resource set is associated with a DMRS of a PUSCH in the second random access resource set.

[0532] As an embodiment, any random access pilot transmitted in the second random access resource set is inseparable from the transmission of the associated PUSCH (ie, atomic).

[0533] As an embodiment, any random access pilot transmitted in the second random access resource set and the associated PUSCH are sent simultaneously.

[0534] As an embodiment, the phrase that any random access pilot included in the second random access resource set is associated to a PUSCH in the second random access resource set includes: the random access pilot is used to determine the time-frequency resources of the PUSCH and the DMRS of the PUSCH.

[0535] As an embodiment, the phrase any random access pilot included in the second random access resource set is associated with a PUSCH in the second random access resource set includes: consecutive N of a valid PRO included in the second random access resource set preamble The pilot indexes are sequentially mapped to a PUSCH in a SSB (SS / PBCH Block synchronization signal / physical broadcast channel block)-RO (RACH Occasion, random access opportunity) mapping cycle.

[0536] As an embodiment, the phrase any random access pilot included in the second random access resource set is associated with a PUSCH in the second random access resource set includes: consecutive N of a valid PRO included in the second random access resource set preamble The pilot indices are sequentially mapped to one PUSCH.

[0537] As an embodiment, the phrase any random access pilot included in the second random access resource set is associated with a PUSCH in the second random access resource set includes: consecutive N of a valid PRO included in the second random access resource set preamble The pilot indexes are sequentially mapped to a PO and the DMRS of the PO.

[0538] As an embodiment, the continuous N preamble The method for selecting a pilot index includes: first, selecting according to an increasing random access pilot index in a PRO, then selecting according to an increasing frequency resource index in multiple PROs of frequency multiplexing, and third, selecting according to an increasing time resource index in multiple PROs of time multiplexing.

[0539] As an embodiment, the phrase mapping to a PUSCH includes: first, mapping according to an increasing frequency resource index on multiple frequency-multiplexed POs, then mapping according to an increasing DMRS resource index within a PO, third, mapping according to an increasing time resource index on multiple time-multiplexed POs, and fourth, mapping according to an increasing time slot index on a PO with multiple PO time slots; wherein the DMRS resource index is first determined by an increasing DMRS port index, and then the DMRS resource index is determined by an increasing DMRS sequence index.

[0540] As an embodiment, the phrase any random access pilot included in the second random access resource set is associated with a PUSCH in the second random access resource set includes: mapping any random access pilot included in the second random access resource set to a PUSCH in the second random access resource set according to the method described in Chapter 8 of protocol 38.213 of the 3GPP standard.

[0541] As an example, the N preamble =ceil(T preamble / T PUSCH ), wherein the T preamble The product of the number of PROs included in the second random access resource set and the number of valid random access pilots included in each PRO; T PUSCH It is the product of the number of POs included in the second random access resource set and the number of DMRS resource indexes included in each PO.

[0542] Example 10

[0543] In the attached Fig.10 In the embodiment, the first node processing device 1000 includes a first receiver 1001 and a first transmitter 1002. The first receiver 1001 includes the first Figure 4 The transmitter / receiver 454 (including the antenna 452), the receiving processor 456, the multi-antenna receiving processor 458 or the controller / processor 459; the first transmitter 1002 includes the attached application Figure 4 At least one of the transmitter / receiver 454 (including antenna 452), transmit processor 468, multi-antenna transmit processor 457 or controller / processor 459.

[0544] In embodiment 10, a first receiver 1001 receives a first RRC message, where the first RRC message is used to indicate a first random access resource set, and the first random access resource set includes at least one random access resource; a protocol layer below the RRC layer receives first information, where the first information is used to indicate a second random access resource set, and the second random access resource set includes at least one random access resource; a first transmitter 1002 determines a target random access resource set based at least on a triggering event of the first message, and sends the first message, where the first message occupies a first random access resource, and the first random access resource is a random access resource in the target random access resource set; wherein any random access resource in the first random access resource set and the second random access resource set includes a time-frequency resource that accommodates at least one random access pilot; the target random access resource set is one of the first random access resource set and the second random access resource set, and the first message includes a random access pilot.

[0545] As an embodiment, the first information is associated with a first identifier, and the first identifier is used to indicate a first node set; the first node set includes the first node.

[0546] As an embodiment, the first receiver 1001 monitors a first signal in a first time window; wherein the first signal includes a response to the first message.

[0547] As an embodiment, the triggering event of the first message includes the arrival of uplink data and the first node being in a non-RRC connected state; wherein the uplink data includes a second bit set, and the amount of data in the second bit set is not greater than a second threshold.

[0548] As an embodiment, the triggering event of the first message includes that the first information includes a first bit set; wherein the data volume of the first bit set is not greater than a first threshold.

[0549] As an embodiment, the time interval between the first time domain resource in the second random access resource set and the reception time of the first information is not less than a third threshold.

[0550] As an embodiment, the first message includes a second signal; wherein a second bit group is used to generate the second signal; the second bit set includes the second bit group; and the random access pilot included in the first message is sent before the second signal.

[0551] Embodiment 11

[0552] Embodiment 11 illustrates a structural block diagram of a processing device in a second node according to an embodiment of the present application, as shown in the attached figure. Fig.11 shown.

[0553] In the attached Fig.11 In the embodiment, the second node processing device 1100 includes a second receiver 1101 and a second transmitter 1102. The second receiver 1101 includes the Figure 4 The transmitter / receiver 418 (including the antenna 420), the receiving processor 470, the multi-antenna receiving processor 472 or the controller / processor 475; the second transmitter 1102 includes the attached application Figure 4 At least one of the transmitter / receiver 418 (including antenna 420), the transmit processor 416, the multi-antenna transmit processor 471 or the controller / processor 475.

[0554] In an embodiment, a second transmitter 1102 sends a first RRC message, wherein the first RRC message is used to indicate a first random access resource set, wherein the first random access resource set includes at least one random access resource; a first information is sent at a protocol layer below the RRC layer, wherein the first information is used to indicate a second random access resource set, wherein the second random access resource set includes at least one random access resource; a second receiver 1202 receives a first message, wherein the first message occupies a first random access resource, wherein the first random access resource is a random access resource in a target random access resource set; wherein the target random access resource set is determined at least based on a triggering event of the first message; any random access resource in the first random access resource set and the second random access resource set includes a time-frequency resource that accommodates at least one random access pilot; the target random access resource set is one of the first random access resource set and the second random access resource set, and the first message includes a random access pilot.

[0555] As an embodiment, the first information is associated with a first identifier, and the first identifier is used to indicate a first node set; the first node set includes the first node.

[0556] As an embodiment, the second transmitter 1102 sends a first signal in a first time window; wherein the first signal includes a response to the first message.

[0557] As an embodiment, the triggering event of the first message includes the arrival of uplink data and the first node being in a non-RRC connected state; wherein the uplink data includes a second bit set, and the amount of data in the second bit set is not greater than a second threshold.

[0558] As an embodiment, the triggering event of the first message includes that the first information includes a first bit set; wherein the data volume of the first bit set is not greater than a first threshold.

[0559] As an embodiment, the time interval between the first time domain resource in the second random access resource set and the reception time of the first information is not less than a third threshold.

[0560] As an embodiment, the first message includes a second signal; wherein a second bit group is used to generate the second signal; the second bit set includes the second bit group; and the random access pilot included in the first message is sent before the second signal.

[0561] A person of ordinary skill in the art can understand that all or part of the steps in the above method can be completed by instructing the relevant hardware through a program, and the program can be stored in a computer-readable storage medium, such as a read-only memory, a hard disk or an optical disk. Optionally, all or part of the steps in the above embodiment can also be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiment can be implemented in the form of hardware or in the form of a software function module, and the present application is not limited to any specific form of software and hardware combination. The first type of communication node or UE or terminal in the present application includes but is not limited to mobile phones, tablet computers, notebooks, Internet cards, low-power devices, eMTC (enhanced Machine Type Communication, enhanced machine type communication) equipment, NB-IoT equipment, vehicle-mounted communication equipment, aircraft, airplanes, drones, remote-controlled aircraft and other wireless communication equipment. The second type of communication node or base station or network side equipment in the present application includes but is not limited to macrocellular base stations, microcellular base stations, home base stations, relay base stations, eNB, gNB, transmission and reception nodes TRP (Transmission and Reception Point, transmission and reception point), relay satellites, satellite base stations, aerial base stations and other wireless communication equipment.

[0562] The above is only a preferred embodiment of the present application and is not intended to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A first node used for wireless communication, characterized in that: include: A first receiver receives a first RRC message, where the first RRC message is used to indicate a first random access resource set, where the first random access resource set includes at least one random access resource; receives first information at a protocol layer below the RRC layer, where the first information is used to indicate a second random access resource set, where the second random access resource set includes at least one random access resource; A first transmitter determines a target random access resource set at least according to a triggering event of a first message, and sends the first message, where the first message occupies a first random access resource, and the first random access resource is a random access resource in the target random access resource set; Among them, any random access resource in the first random access resource set and the second random access resource set includes a time-frequency resource that accommodates at least one random access pilot; the target random access resource set is one of the first random access resource set and the second random access resource set, and the first message includes a random access pilot; the first information is used to indicate that the second random access resource set includes: the first information is used to indicate the time domain resource set included in the second random access resource set; the time interval between the first time domain resource in the second random access resource set and the receiving time of the first information is not less than a third threshold.

2. The first node according to claim 1, characterized in that: The first information is associated with a first identifier, and the first identifier is used to indicate a first node set; the first node set includes the first node.

3. The first node according to claim 1 or 2, characterized in that: include: The first receiver monitors a first signal in a first time window; The first signal includes a response to the first message.

4. The first node according to any one of claims 1 to 3, characterized in that: The triggering event of the first message includes that uplink data arrives and the first node is in a non-RRC connected state; The uplink data includes a second bit set, and the data amount of the second bit set is not greater than a second threshold.

5. The first node according to any one of claims 1 to 4, characterized in that: The triggering event of the first message includes that the first information includes a first bit set; The data volume of the first bit set is not greater than a first threshold.

6. The first node according to claim 4, characterized in that: The first message includes a second signal; The second bit group is used to generate the second signal; the second bit set includes the second bit group; and the random access pilot included in the first message is sent before the second signal.

7. A second node used for wireless communication, characterized in that: include: A second transmitter sends a first RRC message, where the first RRC message is used to indicate a first random access resource set, where the first random access resource set includes at least one random access resource; sends first information at a protocol layer below the RRC layer, where the first information is used to indicate a second random access resource set, where the second random access resource set includes at least one random access resource; A second receiver receives a first message, where the first message occupies a first random access resource, and the first random access resource is a random access resource in a target random access resource set; Among them, the target random access resource set is determined at least according to the triggering event of the first message; any random access resource in the first random access resource set and the second random access resource set includes a time-frequency resource that accommodates at least one random access pilot; the target random access resource set is one of the first random access resource set and the second random access resource set, and the first message includes a random access pilot; the first information is used to indicate that the second random access resource set includes: the first information is used to indicate the time domain resource set included in the second random access resource set; the time interval between the first time domain resource in the second random access resource set and the sending time of the first information is not less than a third threshold.

8. The second node according to claim 7, characterized in that: The first information is associated with a first identifier, and the first identifier is used to indicate a first set of nodes; the first set of nodes includes a sender of the first message.

9. The second node according to claim 7 or 8, characterized in that: The second transmitter sends a first signal in a first time window; The first signal includes a response to the first message.

10. The second node according to any one of claims 7 to 9, characterized in that: The triggering event of the first message includes the arrival of uplink data and the sender of the first message is in a non-RRC connection state; wherein the uplink data includes a second bit set, and the amount of data in the second bit set is not greater than a second threshold.

11. The second node according to any one of claims 7 to 10, characterized in that: The triggering event of the first message includes that the first information includes a first bit set; The data volume of the first bit set is not greater than a first threshold.

12. The second node according to claim 10, characterized in that: The first message includes a second signal; wherein a second bit group is used to generate the second signal; the second bit set includes the second bit group; and the random access pilot included in the first message is sent before the second signal.

13. A method in a first node for wireless communication, characterized in that: include: receiving a first RRC message, where the first RRC message is used to indicate a first random access resource set, where the first random access resource set includes at least one random access resource; Receiving first information at a protocol layer below the RRC layer, where the first information is used to indicate a second random access resource set, where the second random access resource set includes at least one random access resource; Determine a target random access resource set at least according to a triggering event of a first message, send the first message, the first message occupies a first random access resource, and the first random access resource is a random access resource in the target random access resource set; Among them, any random access resource in the first random access resource set and the second random access resource set includes a time-frequency resource that accommodates at least one random access pilot; the target random access resource set is one of the first random access resource set and the second random access resource set, and the first message includes a random access pilot; the first information is used to indicate that the second random access resource set includes: the first information is used to indicate the time domain resource set included in the second random access resource set; the time interval between the first time domain resource in the second random access resource set and the receiving time of the first information is not less than a third threshold.

14. The method in the first node according to claim 13, characterized in that: include: The first information is associated with a first identifier, and the first identifier is used to indicate a first node set; The first node set includes the first node.

15. The method in the first node according to claim 13 or 14, characterized in that: include: monitoring a first signal in a first time window; The first signal includes a response to the first message.

16. The method in the first node according to any one of claims 13 to 15, characterized in that: include: The triggering event of the first message includes that uplink data arrives and the first node is in a non-RRC connected state; The uplink data includes a second bit set, and the data amount of the second bit set is not greater than a second threshold.

17. The method in the first node according to any one of claims 13 to 16, characterized in that: include: The triggering event of the first message includes that the first information includes a first bit set; The data volume of the first bit set is not greater than a first threshold.

18. The method in the first node according to any one of claim 16, characterized in that: include: The first message includes a second signal; The second bit group is used to generate the second signal; the second bit set includes the second bit group; and the random access pilot included in the first message is sent before the second signal.

19. A method in a second node for wireless communication, characterized in that: include: Sending a first RRC message, where the first RRC message is used to indicate a first random access resource set, where the first random access resource set includes at least one random access resource; Sending first information at a protocol layer below the RRC layer, where the first information is used to indicate a second random access resource set, where the second random access resource set includes at least one random access resource; receiving a first message, where the first message occupies a first random access resource, where the first random access resource is a random access resource in a target random access resource set; Among them, the target random access resource set is determined at least according to the triggering event of the first message; any random access resource in the first random access resource set and the second random access resource set includes a time-frequency resource that accommodates at least one random access pilot; the target random access resource set is one of the first random access resource set and the second random access resource set, and the first message includes a random access pilot; the first information is used to indicate that the second random access resource set includes: the first information is used to indicate the time domain resource set included in the second random access resource set; the time interval between the first time domain resource in the second random access resource set and the sending time of the first information is not less than a third threshold.

20. The method in the second node according to claim 19, characterized in that: include: The first information is associated with a first identifier, and the first identifier is used to indicate a first node set; The first set of nodes includes a sender of the first message.

21. The method in the second node according to claim 19 or 20, characterized in that: include: sending a first signal in a first time window; The first signal includes a response to the first message.

22. The method in the second node according to any one of claims 19 to 21, characterized in that: include: The triggering event of the first message includes that uplink data arrives and the sender of the first message is in a non-RRC connected state; The uplink data includes a second bit set, and the data amount of the second bit set is not greater than a second threshold.

23. The method in the second node according to any one of claims 19 to 22, characterized in that: include: The triggering event of the first message includes that the first information includes a first bit set; The data volume of the first bit set is not greater than a first threshold.

24. The method in the second node according to claim 22, characterized in that: include: The first message includes a second signal; The second bit group is used to generate the second signal; the second bit set includes the second bit group; and the random access pilot included in the first message is sent before the second signal.

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