CN116133003A - Method and apparatus for use in wireless communication - Google Patents
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Abstract
A method and apparatus for use in wireless communications is disclosed. The first node triggers a first random access process as a response that any condition in the first condition set is met; the act of triggering a first random access procedure includes transmitting a first signal, the first signal being associated with a first SSB index; wherein when the received power of SSBs indicated by all SSB indexes in a first SSB index set is less than a first threshold, the first SSB index does not belong to the first SSB index set; when the received power of the SSB indicated by any SSB index in the first SSB index set is greater than the first threshold, the first SSB index belongs to the first SSB index set; the first set of conditions includes at least a condition that the received power of SSBs indicated by all SSB indices in the first set of SSB indices is less than the first threshold. The present application effectively supports configuration grant based small data transmission.
Description
Technical Field
The present application relates to a method and apparatus used in a wireless communication system, and more particularly, to a method and apparatus for supporting small data transmission through configuration grant in an RRC inactive state in wireless communication.
Background
Future wireless communication systems have more and more diversified application scenes, and different application scenes have different performance requirements on the system. To meet the different performance requirements of various application scenarios, a New air interface technology (NR) is decided to be researched in the 3GPP (3 rd Generation Partner Project, third Generation partnership project) RAN (Radio Access Network ) #72 times of the whole meeting, and standardized Work is started on NR by the 3GPP RAN #75 times of the whole meeting through the WI (Work Item) of NR.
One of the key technologies of NR is to support beam-based signal transmission, and its main application scenario is to enhance the coverage performance of NR devices operating in the millimeter wave band (e.g., a band greater than 6 GHz). In addition, beam-based transmission techniques are also required to support large-scale antennas in low frequency bands (e.g., frequency bands less than 6 GHz). By weighting the antenna array, the rf signal forms a stronger beam in a particular spatial direction, while the signal is weaker in other directions. After the operations of beam measurement, beam feedback and the like, the beams of the transmitter and the receiver can be accurately aligned with each other, so that signals are sent and received with stronger power, and the coverage performance is improved. Beam management and control of an NR system operating in the millimeter wave band may be achieved for multiple simultaneous broadcast signal blocks (SSBs) and channel state information reference signals (Channel State Information Reference Signal, CSI-RS) measurements and feedback. Different SSBs or CSI-RS may be transmitted by using different beams, where the transmission beams of SSBs with the same index are the same, and a User Equipment (UE) measures SSBs or CSI-RS sent by a gNB (next generation node B ) and feeds back an SSB index or CSI-RS resource index to complete beam alignment. In the random access procedure, the index of the SSB is associated with the physical resource of the PRACH (Physical RandomAccess CHannel ), the UE determines the PRACH resource according to the index of the selected SSB, and since the gNB and the UE have completed beam alignment on the SSB, the beams at the transmitting and receiving ends when transmitting the random access preamble are also aligned.
Dynamic scheduling (Dynamic Scheduling) is a common method in cellular communication, where a base station allocates transmission resources for each downlink or uplink transmission, and a UE receives a scheduling signaling first, and then receives downlink data or transmits uplink data on the transmission resources indicated by the scheduling signaling. For regular transmission of a traffic pattern (traffic pattern), a transmission resource allocation pattern based on Configuration Grant (CG) may be adopted, that is, by allocating transmission resources in advance, the base station makes the UE not need to receive the scheduling signaling first during each transmission, so that the scheduling signaling may be effectively reduced, and the radio resource utilization rate may be improved. For downlink transmission, configuration grants are also referred to as semi-static scheduling; for uplink transmission, the configuration grant includes a configuration grant Type 1 (Type 1) and a configuration grant Type 2 (Type 2).
The NR supports an RRC (Radio Resource Control ) Inactive (rrc_inactive) state, and UEs with sparse (including periodic and aperiodic) data transmission requirements are typically configured by the network to camp on the RRC Inactive state when there is no data transmission. When the UE has a data transmission requirement, the UE performs data transmission after entering an RRC connection (rrc_connected) state from an RRC inactive state, and reenters the RRC inactive state after the data transmission is completed. Until Rel-16,3GPP does not support data transmission in the RRC inactive state, signaling overhead of RRC state transition is greater than transmission overhead of small data for small data transmission, and power consumption overhead of UE is increased. Therefore, the decision to initiate WI standardization work for small data transmissions in RRC inactive state is made at 3gpp ran#88 e.
Disclosure of Invention
The inventor finds through research that in the RRC inactive state, the UE can be configured to perform uplink small data transmission through the configuration grant, and when data arrives, it needs to be checked whether uplink transmission can be performed by using the transmission resources pre-allocated in the configuration grant. When uplink is out of step, or uplink has no available transmission resource, or pre-allocated beam is unavailable, the UE cannot use the pre-allocated transmission resource to perform uplink transmission, and needs to indicate to the base station. If the UE does not indicate to the base station, the UE cannot complete subsequent uplink small data transmission; if the UE resumes transmission after entering the RRC connection state, the uplink small data transmission delay is increased, and the signaling overhead is increased.
The application discloses a solution for executing uplink small data transmission by configuration grant when a UE is in an RRC inactive state, when the UE cannot utilize pre-allocated transmission resources to execute uplink transmission, the UE indicates to a base station so as to be used for the base station to indicate how the UE executes subsequent data transmission. Although the present application is initially directed to the Uu air interface, the present application can also be used for the PC5 air interface. Furthermore, the adoption of a unified solution for different scenarios, including but not limited to upstream communication scenarios, also helps to reduce hardware complexity and cost. Embodiments in the first node and features in embodiments of the present application may be applied to any other node and vice versa without conflict. The embodiments of the present application and features in the embodiments may be combined with each other arbitrarily without conflict. In particular, the term (Terminology), noun, function, variable in this application may be interpreted (if not specifically stated) with reference to the definitions in the 3GPP specification protocols TS36 series, TS38 series, TS37 series.
The application discloses a method used in a first node of wireless communication, comprising the following steps:
triggering a first random access procedure as a response to any condition in the first set of conditions being met; the act of triggering a first random access procedure includes transmitting a first signal, the first signal being associated with a first SSB index, the first signal including a random access preamble;
wherein the first SSB index relates to received power of SSBs indicated by all SSB indexes in the first SSB index set; when the received power of SSBs indicated by all SSB indexes in the first SSB index set is less than a first threshold, the first SSB index does not belong to the first SSB index set; when the received power of the SSB indicated by any SSB index in the first SSB index set is greater than the first threshold, the first SSB index belongs to the first SSB index set; the first condition set includes at least a condition that the received power of SSBs indicated by all SSB indexes in the first SSB index set is less than the first threshold; the first set of SSB indices includes at least one SSB index.
As an embodiment, the present application is applicable to Uu air interfaces.
As an embodiment, the present application is applicable to the first node being in an RRC inactive state.
As an embodiment, the present application is applicable to a scenario in which uplink small data transmission is performed on transmission resources allocated by configuration grant.
As an embodiment, the application is applicable to the transmission of small data after the first node receives the feedback of the base station for the small data transmission request.
As an embodiment, the present application is applicable to subsequent small data transmissions during CG-SDT (Configured Grant-Small Data Transmission, configuration Grant-small data transmissions).
As an embodiment, the present application is applicable to a subsequent CG (Configured Grant) transfer phase (subsequentcgfransmisionnphase) in the CG-SDT process.
As an embodiment, the subsequent CG is not used for transmitting CCCH (Common Control CHannel ).
As one embodiment, the configuration grant is provided by RRC signaling.
As one embodiment, the configuration grant is a configuration grant type 1.
As one embodiment, the configuration grant type 1 is stored as a configuration uplink grant at the first node (configured uplink grant).
As an embodiment, the present application is applicable to transmissions within one serving cell (serving cell).
As one embodiment, the problem to be solved by the present application is: in an RRC inactive state, the first node performs uplink small data transmission on the transmission resources allocated by the configuration grant, and when the first node cannot perform uplink transmission by utilizing the pre-allocated transmission resources, if the first node does not indicate to the base station, the subsequent uplink small data transmission cannot be completed; if the first node continues to transmit after entering the RRC connection state, a large amount of signaling overhead will be increased, reducing transmission efficiency, and increasing transmission delay.
As one embodiment, the solution of the present application comprises: when any one of the first set of conditions is satisfied, triggering a first random procedure, the first node indicating, through a first SSB index associated with a first signal in the first random access procedure, whether or not the received power of SSBs indicated by all SSB indexes in the first set of SSB indexes is less than a first threshold is satisfied.
As an embodiment, the above method may implicitly indicate the reason for triggering the first random access procedure.
As an embodiment, the method can quickly recover the subsequent uplink small data transmission.
As an embodiment, the method can reduce signaling overhead and improve transmission efficiency.
As an embodiment, any one of the first set of conditions is satisfied indicating a reason for triggering the first random access procedure.
As an embodiment, when any condition in the first condition set is satisfied, the first node cannot perform uplink small data transmission on the transmission resource allocated by the configuration grant in the RRC inactive state.
According to one aspect of the present application, there is provided:
receiving a second signal, the second signal comprising a first message, the first message indicating a first transmission mode;
transmitting a third set of signals through the first transmission mode;
wherein the second signal belongs to the first random access procedure; the received power of SSBs indicated by all SSB indexes in the first SSB index set is less than the first threshold; the first transmission mode is one of a dynamically scheduled transmission mode or a configuration grant transmission mode; the third set of signals includes at least one signal.
As one embodiment, when the received power of SSBs indicated by all SSB indexes in the first SSB index set is less than the first threshold, a first transmission mode is received, and a third signal set is transmitted through the first transmission mode.
As a sub-embodiment of the above embodiment, SSBs indicated by all SSB indices in the first SSB index set cannot be used for transmission in CG-SDT procedures.
According to one aspect of the present application, there is provided:
receiving a second message, the second message indicating the first SSB index set; the second message indicates a second set of time-frequency resources; the second message is used to instruct the first node to enter an RRC inactive state;
wherein the second set of time-frequency resources is reserved for the configuration grant transmission.
As an embodiment, the first node enters the RRC inactive state after receiving the second message, where the second message configures parameters of the first node when the first node performs small data transmission in the RRC inactive state.
According to one aspect of the present application, there is provided:
the first message indicates a first set of time-frequency resources used to transmit the third set of signals, the first set of time-frequency resources including at least one time-frequency resource;
Wherein, the first sending mode is the sending mode of the configuration grant; any one of the first time-frequency resources belongs to the second time-frequency resource set.
As an embodiment, when the first transmission mode is the transmission mode granted by the configuration, the first message implicitly indicates a set of time-frequency resources for transmitting the third set of signals.
According to one aspect of the present application, there is provided:
monitoring a first signaling in a first time window, the first signaling being used to indicate a time-frequency resource for transmitting one signal of the third set of signals;
the first sending mode is the dynamically scheduled sending mode; the first message indicates the first time window, the first time window being located between any two adjacent time domain resources in the time domain resource set of the second set of time-frequency resources after the time of receipt of the second signal.
As an embodiment, when the first transmission mode is the dynamically scheduled transmission mode, the first message indicates a first time window for monitoring first signaling, and the first signaling indicates a time-frequency resource for transmitting one signal in the third signal set.
According to one aspect of the present application, there is provided:
and receiving second signaling, wherein the second signaling indicates a time-frequency resource, the time-frequency resource is used for transmitting a fourth signal, the fourth signal comprises at least part of data cached by the first node, and the transmission time of the fourth signal is earlier than the transmission time of the third signal set.
According to one aspect of the present application, there is provided:
the first node is in the RRC inactive state when transmitting the third set of signals.
The application discloses a first node used for wireless communication, which is characterized by comprising:
a first transmitter that triggers a first random access procedure in response to any one of a first set of conditions being satisfied; the act of triggering a first random access procedure includes transmitting a first signal, the first signal being associated with a first SSB index, the first signal including a random access preamble;
wherein the first SSB index relates to received power of SSBs indicated by all SSB indexes in the first SSB index set; when the received power of SSBs indicated by all SSB indexes in the first SSB index set is less than a first threshold, the first SSB index does not belong to the first SSB index set; when the received power of the SSB indicated by any SSB index in the first SSB index set is greater than the first threshold, the first SSB index belongs to the first SSB index set; the first condition set includes at least a condition that the received power of SSBs indicated by all SSB indexes in the first SSB index set is less than the first threshold; the first set of SSB indices includes at least one SSB index.
The application discloses a method used in a second node of wireless communication, comprising the following steps:
receiving a first signal, the first signal being associated with a first SSB index, the first signal comprising a random access preamble;
wherein the first random access procedure is triggered in response to any condition in the first set of conditions being met; the first random access procedure is triggered including a first signal being sent; the first SSB index relates to received power of SSBs indicated by all SSB indices in the first SSB index set; when the received power of SSBs indicated by all SSB indexes in the first SSB index set is less than a first threshold, the first SSB index does not belong to the first SSB index set; when the received power of the SSB indicated by any SSB index in the first SSB index set is greater than the first threshold, the first SSB index belongs to the first SSB index set; the first condition set includes at least a condition that the received power of SSBs indicated by all SSB indexes in the first SSB index set is less than the first threshold; the first set of SSB indices includes at least one SSB index.
According to one aspect of the present application, there is provided:
transmitting a second signal, the second signal comprising a first message, the first message indicating a first transmission mode;
receiving a third set of signals;
wherein the third set of signals is transmitted through the first transmission mode; the second signal belongs to the first random access procedure; the received power of SSBs indicated by all SSB indexes in the first SSB index set is less than the first threshold; the first transmission mode is one of a dynamically scheduled transmission mode or a configuration grant transmission mode; the third set of signals includes at least one signal.
According to one aspect of the present application, there is provided:
transmitting a second message, the second message indicating the first SSB index set; the second message indicates a second set of time-frequency resources; the second message is used to instruct the sender of the first signal to enter an RRC inactive state;
wherein the second set of time-frequency resources is reserved for the configuration grant transmission.
According to one aspect of the present application, there is provided:
the first message indicates a first set of time-frequency resources used to transmit the third set of signals, the first set of time-frequency resources including at least one time-frequency resource;
Wherein, the first sending mode is the sending mode of the configuration grant; any one of the first time-frequency resources belongs to the second time-frequency resource set.
According to one aspect of the present application, there is provided:
transmitting first signaling in a first time window, the first signaling being used to indicate a time-frequency resource for transmitting one signal of the third set of signals;
the first sending mode is the dynamically scheduled sending mode; the first message indicates the first time window, the first time window being located between any two adjacent time domain resources in the time domain resource set of the second set of time-frequency resources after the time of receipt of the second signal.
According to one aspect of the present application, there is provided:
and transmitting second signaling, wherein the second signaling indicates a time-frequency resource, the time-frequency resource is used for transmitting a fourth signal, the fourth signal comprises at least part of data buffered by the transmitter of the first signal, and the transmitting time of the fourth signal is earlier than the transmitting time of the third signal set.
According to one aspect of the present application, there is provided:
the sender of the first signal is in the RRC inactive state when receiving the third set of signals.
The application discloses a second node for wireless communication, comprising:
a second receiver for receiving a first signal, the first signal being associated with a first SSB index, the first signal comprising a random access preamble;
wherein the first random access procedure is triggered in response to any condition in the first set of conditions being met; the first random access procedure is triggered including a first signal being sent; the first SSB index relates to received power of SSBs indicated by all SSB indices in the first SSB index set; when the received power of SSBs indicated by all SSB indexes in the first SSB index set is less than a first threshold, the first SSB index does not belong to the first SSB index set; when the received power of the SSB indicated by any SSB index in the first SSB index set is greater than the first threshold, the first SSB index belongs to the first SSB index set; the first condition set includes at least a condition that the received power of SSBs indicated by all SSB indexes in the first SSB index set is less than the first threshold; the first set of SSB indices includes at least one SSB index.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the following drawings, in which:
fig. 1 illustrates a transmission flow diagram of a first node according to one embodiment of the present application;
FIG. 2 illustrates a schematic diagram of a network architecture according to one embodiment of the present application;
fig. 3 illustrates a schematic diagram of a wireless protocol architecture of a user plane and a control plane according to one embodiment of the present application;
FIG. 4 illustrates a hardware module schematic of a communication device according to one embodiment of the present application;
fig. 5 illustrates a wireless signal transmission flow diagram according to one embodiment of the present application;
FIG. 6 illustrates a signal processing flow diagram according to one embodiment of the present application;
FIG. 7 illustrates a schematic diagram of a first message according to one embodiment of the present application;
fig. 8 illustrates a schematic diagram of a time domain resource set of a second time-frequency resource set versus a time domain resource set of a first time-frequency resource set according to one embodiment of the present application;
FIG. 9 illustrates a schematic diagram of a relationship of a first time window to a set of time domain resources of a second set of time frequency resources according to one embodiment of the present application;
Fig. 10 illustrates a schematic diagram of a first SSB index and multiple antenna parameters according to one embodiment of the present application;
FIG. 11 illustrates a block diagram of a processing device in a first node according to one embodiment of the present application;
fig. 12 illustrates a block diagram of a processing arrangement in a second node according to an embodiment of the present application.
Detailed Description
The technical solution of the present application will be further described in detail with reference to the accompanying drawings, and it should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be arbitrarily combined with each other.
Example 1
Embodiment 1 illustrates a transmission flow diagram of a first node according to one embodiment of the present application, as shown in fig. 1.
In embodiment 1, the first node 100 triggers a first random access procedure in step 101 as a response to any of the first set of conditions being met; the act of triggering a first random access procedure includes transmitting a first signal, the first signal being associated with a first SSB index, the first signal including a random access preamble; wherein the first SSB index relates to received power of SSBs indicated by all SSB indexes in the first SSB index set; when the received power of SSBs indicated by all SSB indexes in the first SSB index set is less than a first threshold, the first SSB index does not belong to the first SSB index set; when the received power of the SSB indicated by any SSB index in the first SSB index set is greater than the first threshold, the first SSB index belongs to the first SSB index set; the first condition set includes at least a condition that the received power of SSBs indicated by all SSB indexes in the first SSB index set is less than the first threshold; the first set of SSB indices includes at least one SSB index.
As an embodiment, the first transmitter, in response to any of the first set of conditions being met, triggers a first random access procedure; the act of triggering a first random access procedure includes transmitting a first signal, the first signal being associated with a first SSB index, the first signal including a random access preamble; wherein the first SSB index relates to received power of SSBs indicated by all SSB indexes in the first SSB index set; when the received power of SSBs indicated by all SSB indexes in the first SSB index set is not greater than a first threshold, the first SSB index does not belong to the first SSB index set; when the received power of the SSB indicated by any SSB index in the first SSB index set is greater than the first threshold, the first SSB index belongs to the first SSB index set; the first condition set includes at least a condition that the received power of SSBs indicated by all SSB indexes in the first SSB index set is less than the first threshold; the first set of SSB indices includes at least one SSB index.
As an embodiment, the first transmitter, in response to any of the first set of conditions being met, triggers a first random access procedure; the act of triggering a first random access procedure includes transmitting a first signal, the first signal being associated with a first SSB index, the first signal including a random access preamble; wherein the first SSB index relates to received power of SSBs indicated by all SSB indexes in the first SSB index set; when the received power of SSBs indicated by all SSB indexes in the first SSB index set is less than a first threshold, the first SSB index does not belong to the first SSB index set; when the received power of the SSB indicated by any SSB index in the first SSB index set is not less than the first threshold, the first SSB index belongs to the first SSB index set; the first condition set includes at least a condition that the received power of SSBs indicated by all SSB indexes in the first SSB index set is less than the first threshold; the first set of SSB indices includes at least one SSB index.
As an embodiment, the first random access procedure is triggered in response to any of the first set of conditions being met.
As an embodiment, any condition of the first set of conditions is fulfilled to trigger the first random access procedure.
As an embodiment, the act of triggering the first random access procedure comprises transmitting a first signal.
As an embodiment, the first signal is transmitted over an air interface.
As an embodiment, the first signal is via PRACH.
As an embodiment, the first signal is an uplink signal.
As an embodiment, the first signal comprises Msg1 (message 1); wherein the first random access procedure is a 4-step (4-step) random access procedure.
As an embodiment, the first signal includes a random access preamble (preamble) in MsgA (message a); wherein the first random access procedure is a 2-step (2-step) random access procedure.
As an embodiment, the first signal comprises a random access preamble.
As an embodiment, a random access preamble is a signature sequence.
As an embodiment, one feature sequence is a pseudo-random sequence.
As an example, one feature sequence is a Gold sequence.
As one example, one feature sequence is an M sequence.
As an embodiment, one feature sequence is a ZC sequence.
As an embodiment, the first signal is associated with a first SSB index (index).
For one embodiment, the phrase the first signal and first SSB index association includes: the first SSB index is used to determine PRACH occasions (occalations) occupied by the first signal.
As an embodiment, one PRACH occasion includes time domain resources and frequency domain resources for transmitting one random access preamble.
As an embodiment, one time domain resource includes at least one OFDM (Orthogonal FrequencyDivision Multiplexing ) symbol (symbol).
As an embodiment, one time domain resource includes at least one slot (slot).
As an embodiment, one time domain resource includes at least one subframe (subframe).
As an embodiment, one frequency domain resource includes at least one Resource Element (RE).
As an embodiment, one frequency domain resource includes at least one Resource Block (RB).
As an embodiment, one frequency domain resource includes at least one subchannel (sub-channel).
As an embodiment, the first node is configured by the network to associate each PRACH occasion with N SSB indexes.
As an embodiment, the first node configures, by the network, each SSB index each valid PRACH occasion and R random access preamble associations.
As an example, when N<1, an SSB index is mapped to 1/N consecutive activeThe PRACH occasion and R contention-based random access preambles with consecutive indexes associated with the SSB index of each valid PRACH occasion and starting from the random access preamble index 0; when N is equal to or greater than 1, R contention-based random access preambles with consecutive indexes associated with SSB index N of each valid PRACH occasion are indexed from the random access preambles
Starting, wherein said N satisfies 0.ltoreq.n.ltoreq.N-1, said +.>
Is the total random access front derivative, and is configured by the network.
As an embodiment, the first node determines a PRACH occasion of transmitting the first signal according to the first SSB index; when R is greater than 1, the first signal includes a random access preamble randomly selected by the first node from the R random access preambles.
As one embodiment, the N is a number greater than 0.
As an embodiment, R is a positive integer not less than 1.
For one embodiment, the phrase the first signal and first SSB index association includes: the multi-antenna transmission parameters of the first signal are the same as the multi-antenna transmission parameters of the SSB indicated by the first SSB index.
For one embodiment, the phrase the first signal and first SSB index association includes: the multiple antenna transmission parameters of the SSB indicated by the first SSB index can be used to infer multiple antenna transmission parameters of the first signal.
For one embodiment, the phrase the first signal and first SSB index association includes: the reception of the SSB indicated by the first SSB index is used to determine a multi-antenna transmission parameter of the first signal.
For one embodiment, the phrase the first signal and first SSB index association includes: the multiple antenna reception parameters of the SSB indicated by the first SSB index are used to determine multiple antenna transmission parameters of the first signal.
As an embodiment, the multi-antenna reception parameters comprise a spatial domain filter (spatial domain filter).
As an embodiment, the multi-antenna transmission parameters comprise a spatial domain filter (spatial domain filter).
As an embodiment, the multi-antenna reception parameter includes a Spatial correlation (Spatial correlation) parameter.
As an embodiment, the multi-antenna transmission parameter includes a Spatial correlation (Spatial correlation) parameter.
As an embodiment, the multi-antenna reception parameter includes a QCL (Quasi-location) parameter.
As an embodiment, the multi-antenna transmission parameter includes a QCL parameter.
As one embodiment, the QCL parameters include QCL type.
As an embodiment, the multi-antenna reception parameter includes a spatial reception parameter, and the multi-antenna transmission parameter includes a spatial transmission parameter.
As an embodiment, the multi-antenna reception parameter comprises a spatial domain reception filter and the multi-antenna transmission parameter comprises a spatial domain transmission filter.
As one embodiment, the first SSB index is one of K SSB indexes, where the K SSB indexes indicate K SSBs, and the K SSBs indicated by the K SSB indexes are sent through K radio signals, where the K radio signals are sent in K time units, and the K time units are orthogonal (i.e. not overlapped).
As an embodiment, each SSB of the K SSBs corresponds to a multi-antenna transmission parameter.
As an embodiment, the first SSB index is selected by the first node itself.
As one embodiment, the SSB indicated by the first SSB index is one SSB whose reception power randomly selected by the first node from the K SSBs indicated by the K SSB indexes is greater than a second threshold.
As one embodiment, the SSB indicated by the first SSB index is one SSB with the highest received power selected by the first node from the K SSBs indicated by the K SSB indexes.
As an embodiment, the second threshold is configured by the second node.
As an embodiment, the second threshold is used for SSB selection in a random access procedure.
As one embodiment, any one SSB of the K SSBs is used to determine timing information including at least one of a symbol index, a slot index, a subframe index, and a frame index.
As one embodiment, any one of the K SSBs is used for channel quality measurement.
As one embodiment, any one of the K SSBs is used for neighbor cell channel quality measurement.
As one embodiment, any one of the K SSBs is used for current cell channel quality measurement.
As one embodiment, any one of the K SSBs is used for beam quality measurement.
As one embodiment, any one of the K SSBs is used for interference strength measurement.
As one embodiment, any one of the K SSBs is used to acquire frequency synchronization.
As an embodiment, any one SSB of the K SSBs is used to obtain a cell physical identity.
As one embodiment, any one SSB of the K SSBs is used to acquire cell broadcast information.
As one embodiment, any one of the K SSBs includes a physical shared channel.
As one embodiment, any one of the K SSBs includes a physical broadcast channel.
As an embodiment, any one SSB of the K SSBs includes a demodulation reference signal.
As an embodiment, any one of the K SSBs includes a PSS (Primary Synchronization Signal ).
As an embodiment, any one of the K SSBs includes SSS (Secondary Synchronization Signal ).
As an embodiment, any one of the K SSBs includes a PBCH (Physical BroadcastChannel ).
As one embodiment, any one of the K SSBs is used to send MIB (Master Information Block, master system message block).
As one embodiment, any one of the K SSBs is used to send a SIB (System Information Block, system message block).
As an embodiment, the time domain resources occupied by any two SSBs of the K SSBs are orthogonal; wherein K is a positive integer not less than 2.
As an embodiment, the multiple antenna transmission parameters of any two SSBs of the K SSBs are different; wherein K is a positive integer not less than 2.
As one embodiment, any two SSB QCLs of the K SSBs are unassociated; wherein K is a positive integer not less than 2.
As an embodiment, K is a positive integer not less than 1.
For a specific definition of QCL, see section 5.1.5 in 3gpp ts38.214, as an example.
As an embodiment, the one signal and the other signal QCL are not associated comprising: all or part of the large-scale (large-scale) characteristics of the wireless signal transmitted on the antenna port corresponding to one signal cannot be inferred from all or part of the large-scale (large-scale) characteristics of the wireless signal transmitted on the antenna port corresponding to the other signal.
As one embodiment, the large scale characteristic of a wireless signal includes at least one of { delay spread (delay spread), doppler spread (Doppler spread), doppler shift (Doppler shift), path loss (path loss), average gain (average gain), average delay (average delay), spatial reception parameter (Spatial Rxparameters) }.
As an embodiment, the spatial reception parameters (Spatial Rxparameters) include at least one of { reception beams, reception analog beamforming matrices, reception analog beamforming vectors, reception spatial filtering (spatial filter), spatial reception filtering (spatial domain reception filter) }.
As an embodiment, the fact that one signal is not associated with another signal QCL means that: the value of any QCL parameter of one signal is different from the value of the same QCL parameter of another signal.
As one embodiment, the QCL parameters include: at least one of { delay spread (delay spread), doppler spread (Doppler shift), doppler shift (Doppler shift), path loss (path loss), average gain (average gain), average delay (average delay), spatial reception parameter (Spatial Rxparameters) }.
As one embodiment, a signal and another signal not QCL associated means: the value of one QCL parameter of one signal cannot be inferred from the value of the same QCL parameter of another signal.
As one embodiment, the first SSB index set includes at least one SSB index.
As an embodiment, the first SSB index relates to the received power of SSBs indicated by all SSB indices in the first SSB index set.
As one embodiment, the received power of SSBs indicated by all SSB indices in the first SSB index set is used to determine whether the first SSB index belongs to the first SSB index set.
As one embodiment, any SSB index in the first set of SSB indices indicates one SSB.
As an embodiment, the received power of one SSB refers to: SS (synchronization signals, synchronization signal) reference signal received power of one SSB.
As an embodiment, the received power of one SSB refers to: SS-RSRP (Reference Signal ReceivedPower ) of one SSB.
As an embodiment, the received power of one SSB refers to: a linear average (linear average) of the power contributions of the resource elements (resource elements, REs) of the carrier (carry) auxiliary synchronization signal (secondary synchronization signals).
As an example, the received power of one SSB is the received power measured at layer 3.
As an example, the received power of one SSB is a linear average of the received powers measured at layer 1.
As an embodiment, SS-RSRP is measured only in SSB-corresponding reference signals with the same SSB index and the same physical layer cell identity.
As one example, the received power of one SSB is expressed in watts (W).
As one example, the received power of one SSB is expressed in milliwatt decibels (dBm).
As one embodiment, when the received power of SSBs indicated by all SSB indices in the first SSB index set is less than a first threshold, the first SSB index does not belong to the first SSB index set; when the received power of the SSB indicated by any SSB index in the first SSB index set is greater than the first threshold, the first SSB index belongs to the first SSB index set.
As one embodiment, the first SSB index does not belong to the first SSB index set when the received power of SSBs indicated by all SSB indices in the first SSB index set is not greater than a first threshold; when the received power of the SSB indicated by any SSB index in the first SSB index set is greater than the first threshold, the first SSB index belongs to the first SSB index set.
As one embodiment, when the received power of SSBs indicated by all SSB indices in the first SSB index set is less than a first threshold, the first SSB index does not belong to the first SSB index set; when the received power of the SSB indicated by any SSB index in the first SSB index set is not less than the first threshold, the first SSB index belongs to the first SSB index set.
As one embodiment, the phrase that the first SSB index does not belong to the first SSB index set includes: the first SSB index is different from any SSB index in the first set of SSB indices.
As one embodiment, the phrase that the first SSB index belongs to the first SSB index set includes: the first SSB index is the same as one SSB index in the first SSB index set.
As an embodiment, the first set of conditions includes at least one condition.
As an embodiment, the first condition set includes at least a condition that the received power of SSBs indicated by all SSB indexes in the first SSB index set is smaller than the first threshold.
As an embodiment, the first condition set includes at least a condition that the received power of SSBs indicated by all SSB indexes in the first SSB index set is not greater than the first threshold.
As an embodiment, the first set of conditions includes at least that the received power of SSBs indicated by all SSB indices in the first set of SSB indices is less than the first threshold.
As an embodiment, the first set of conditions includes at least that the received power of SSBs indicated by all SSB indices in the first set of SSB indices is not greater than the first threshold.
As one embodiment, when one uplink grant received by the MAC sublayer of the first node is a configuration grant, an evaluation (evaluation) is performed for SSBs indicated by all SSB indexes in the first SSB index set.
As one embodiment, evaluating for an SSB includes determining whether the SSB is acceptable based on the received power of the SSB.
As one embodiment, the evaluation for one SSB includes comparing the received power of the SSB to the first threshold; when the received power of the SSB is greater than the first threshold, the SSB is qualified; when the received power of the SSB is not greater than the first threshold, the SSB is failed.
As one embodiment, the evaluation for one SSB includes comparing the received power of the SSB to the first threshold; when the received power of the SSB is not less than the first threshold value, the SSB is qualified; when the received power of the SSB is smaller than the first threshold, the SSB is failed.
As an embodiment, the first condition set includes invalid (invalid) TA (timing advance).
As an embodiment, the first set of conditions includes triggering SR (Scheduling Request ) due to UL (Uplink) resource starvation.
This is an embodiment, the first set of conditions comprises an upstream out-of-sync.
As an embodiment, the first set of conditions includes requesting other SIs (System Information ).
As an embodiment, the first set of conditions includes a scheduling request (SchedulingRequest, SR) failure.
As one embodiment, the first set of conditions includes a transition from an RRC inactive state.
As an embodiment, the first threshold is configured by the network.
As an embodiment, the first threshold is configured by the second node.
As an embodiment, the first threshold is cell-specific.
As an embodiment, the second threshold is user specific (UE-specific).
As an embodiment, the first threshold is expressed in watts (W).
As one embodiment, the first threshold is expressed in milliwatt decibels (dBm).
As one embodiment, the phrase that the received power of SSBs indicated by all SSB indices in the first set of SSB indices is less than the first threshold comprises: no qualified (quantized) SSB is found when performing an evaluation for SSBs indicated by all SSB indices in the first set of SSB indices.
As one embodiment, the phrase that the received power of SSBs indicated by all SSB indices in the first set of SSB indices is not greater than the first threshold comprises: no eligible SSBs are found when performing an evaluation for SSBs indicated by all SSB indices in the first set of SSB indices.
As an embodiment, the second threshold is different from the first threshold.
As an embodiment, the first threshold is not smaller than the second threshold.
As an embodiment, the first threshold is greater than the second threshold.
As an embodiment, in response to transmitting the first signal, a TA command is received, the TA command being used to maintain uplink synchronization of the first node.
Example 2
Embodiment 2 illustrates a schematic diagram of a network architecture according to one embodiment of the present application, as shown in fig. 2. Fig. 2 illustrates a network architecture 200 of NR 5g, LTE (Long-term evolution) and LTE-a (Long-Term EvolutionAdvanced, enhanced Long-term evolution) systems. The NR 5G, LTE or LTE-a network architecture 200 may be referred to as 5GS (5G System)/EPS (EvolvedPacket 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 CoreNetwork)/EPC (EvolvedPacket Core, evolved packet core) 210, hss (Home Subscriber Server )/UDM (Unified Data Management, unified data management) 220, and internet service 230. The 5GS/EPS 200 may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown, the 5GS/EPS 200 provides packet switched services, however, those skilled in the art will readily appreciate that the various concepts presented throughout this application may be extended to networks providing circuit switched services or other cellular networks. The NG-RAN includes NR node bs (gnbs) 203 and other gnbs 204. The gNB203 provides user and control plane protocol termination towards the UE 201. The gNB203 may be connected to other gnbs 204 via an Xn interface (e.g., backhaul). 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. The gNB203 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 (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), TRP (Transmission Reception Point, transmitting receiving node), or some other suitable terminology, and in NTN networks, the gNB203 may be a satellite, an aircraft, or a terrestrial base station relayed through a satellite. The gNB203 provides the UE201 with an access point to the 5GC/EPC210. Examples of UE201 include a cellular telephone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a Personal Digital Assistant (PDA), a satellite radio, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a game console, an drone, an aircraft, a narrowband internet of things device, a machine-type communications device, a land vehicle, an automobile, an in-vehicle device, an in-vehicle communications unit, a wearable device, or any other similar functional device. Those of skill in the art may also refer to the UE201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile 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 terminology. gNB203 is connected to 5GC/EPC210 through an S1/NG interface. The 5GC/EPC210 includes MME (Mobility Management Entity )/AMF (Authentication ManagementField, authentication management domain)/SMF (session management function) 211, other MME/AMF/SMF214, S-GW (Service Gateway)/UPF (User Plane Function), and P-GW (PacketDate Network Gateway, packet data network Gateway)/UPF 213. The MME/AMF/SMF211 is a control node that handles signaling between the UE201 and the 5GC/EPC210. In general, the MME/AMF/SMF211 provides bearer and connection management. All user IP (internet protocol) packets are transported through the S-GW/UPF212, which S-GW/UPF212 itself is connected to the P-GW/UPF213. The P-GW provides UE IP address assignment as well as other functions. The P-GW/UPF213 is connected to the internet service 230. The internet service 230 includes an operator-corresponding internet protocol service, and may specifically include the internet, an intranet, an IMS (IP Multimedia Subsystem ), and a PS (Packet Switching) streaming service.
As an embodiment, the UE201 corresponds to a first node in the present application.
As an embodiment, the NR node B corresponds to a second node in the present application.
As one example, the gNB203 is a macro Cell (Marco Cell) base station.
As one example, the gNB203 is a Micro Cell (Micro Cell) base station.
As an example, the gNB203 is a Pico Cell (Pico Cell) base station.
As an example, the gNB203 is a home base station (Femtocell).
As an embodiment, the gNB203 is a base station device supporting a large delay difference.
As an embodiment, the gNB203 is a flying platform device.
As one embodiment, the gNB203 is a satellite device.
As an embodiment, the radio link from the UE201 to the gNB203 is an uplink.
As an embodiment, the radio link from the gNB203 to the UE201 is a downlink.
As one embodiment, the wireless link from the UE201 to the UE241 is a sidelink.
As an embodiment, the UE201 and the gNB203 are connected through a Uu interface.
As an embodiment, the UE201 and the UE241 are connected through a PC5 Reference Point (Reference Point).
Example 3
Embodiment 3 illustrates a schematic diagram of a wireless protocol architecture of a user plane and a control plane according to one embodiment of the present application, as shown in fig. 3. Fig. 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300, fig. 3 shows the radio protocol architecture of the control plane 300 for a UE and a gNB with 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 herein as PHY301. Layer 2 (L2 layer) 305 is above PHY301 and is responsible for the link between the UE and the gNB through PHY301. The L2 layer 305 includes a MAC (MediumAccess Control ) sublayer 302, an RLC (Radio Link Control, radio link layer control protocol) sublayer 303, and a PDCP (Packet Data Convergence Protocol ) sublayer 304, which terminate at the gNB on the network side. The PDCP sublayer 304 provides data ciphering and integrity protection, and the PDCP sublayer 304 also provides handover support for UEs between gnbs. The RLC sublayer 303 provides segmentation and reassembly of data packets, retransmission of lost data packets by ARQ, and 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 the various radio resources (e.g., resource blocks) in one cell among the UEs. The MAC sublayer 302 is also responsible for HARQ (HybridAutomatic RepeatRequest ) 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 radio protocol architecture of the user plane 350 includes layer 1 (L1 layer) and layer 2 (L2 layer), the radio protocol architecture in the user plane 350 is substantially the same for the physical layer 351, PDCP sublayer 354 in the L2 layer 355, RLC sublayer 353 in the L2 layer 355, and MAC sublayer 352 in the L2 layer 355 as the corresponding layers and sublayers in the control plane 300, but the PDCP sublayer 354 also provides header compression for upper layer data packets to reduce radio transmission overhead. Also included in the L2 layer 355 in the user plane 350 is an SDAP (Service DataAdaptationProtocol ) sublayer 356, the SDAP sublayer 356 being responsible for mapping between QoS (Quality ofService ) flows and Data Radio Bearers (DRBs) to support diversity of traffic. The radio protocol architecture of the UE in the user plane 350 may include some or all of the SDAP sublayer 356, pdcp sublayer 354, rlc sublayer 353 and MAC sublayer 352 at the L2 layer. Although not shown, the UE may also have several upper layers above the L2 layer 355, including a network layer (e.g., IP layer) that terminates at the P-GW on the network side and an application layer that terminates at the other end of the connection (e.g., remote UE, server, etc.).
As an embodiment, the wireless protocol architecture in fig. 3 is applicable to the first node in the present application.
As an embodiment, the wireless protocol architecture in fig. 3 is applicable to the second node in the present application.
As an example, the entities of the multiple sub-layers of the control plane in fig. 3 constitute signaling radio bearers (Signaling Radio Bearer, SRB) in the vertical direction.
As an example, the entities of the multiple sublayers of the user plane in fig. 3 constitute a Data Radio Bearer (DRB) in the vertical direction.
As an example, the entities of the multiple sub-layers of the user plane in fig. 3 constitute a multimedia broadcast multicast service point-to-multipoint radio bearer (MBMS pointto multipointRadio Bearer, MRB) in the vertical direction.
As an embodiment, the first signal in the present application is generated by the PHY301 and the PHY351.
As an embodiment, the second signal in the present application is generated by the PHY301 and the PHY351.
As an embodiment, the third signal set in the present application is generated by the PHY301 and the PHY351.
As an embodiment, the fourth signal in the present application is generated by the PHY301 and the PHY351.
As an embodiment, the fifth signal set in the present application is generated by the PHY301 and the PHY351.
As an embodiment, the first message in the present application is generated by the MAC302 and the MAC352.
As an embodiment, the second message in the present application is generated in the RRC306.
As an embodiment, the first signaling in the present application is generated in the PHY301 and the PHY351.
As an embodiment, the second signaling in the present application is generated in the PHY301 and the PHY351.
As an embodiment, the L2 layer 305 belongs to a higher layer.
As an embodiment, the RRC sub-layer 306 in the L3 layer belongs to a higher layer.
Example 4
Embodiment 4 illustrates a hardware module schematic of a communication device according to an embodiment of the present application, as shown in fig. 4. Fig. 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.
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.
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.
In the transmission from the second communication device 410 to the first communication device 450, upper layer packets from the core network or upper layer packets from the data source 477 are provided to the controller/processor 475 at the second communication device 410. The core network and data source 477 represent all 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, a 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 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., physical layer). Transmit processor 416 performs coding and interleaving to facilitate Forward Error Correction (FEC) at the second communication device 410, as well as mapping of signal clusters 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 digitally space-precodes the coded and modulated symbols, including codebook-based precoding and non-codebook-based precoding, and beamforming processing, to generate one or more spatial streams. A transmit processor 416 then maps each spatial stream to a subcarrier, multiplexes with reference signals (e.g., pilots) in the time and/or frequency domain, and then uses an Inverse Fast Fourier Transform (IFFT) to generate a physical channel carrying the time domain multicarrier symbol stream. The multi-antenna transmit processor 471 then performs transmit analog precoding/beamforming operations on the time domain multi-carrier symbol stream. Each transmitter 418 converts the baseband multicarrier symbol stream provided by the multiple antenna transmit processor 471 to a radio frequency stream and then provides it to a different antenna 420.
In a transmission from the second communication device 410 to the first communication device 450, each receiver 454 receives a signal at the first communication device 450 through its respective antenna 452. Each receiver 454 recovers information modulated onto a radio frequency carrier and converts the radio frequency stream into a baseband multicarrier symbol stream that is provided to a receive processor 456. The receive processor 456 and the multi-antenna receive processor 458 implement various signal processing functions for the L1 layer. A multi-antenna receive processor 458 performs receive analog precoding/beamforming operations on the baseband multi-carrier symbol stream from the receiver 454. The receive processor 456 converts the baseband multicarrier symbol stream after receiving the analog precoding/beamforming operation from the time domain to the frequency domain using a Fast Fourier Transform (FFT). In the frequency domain, the physical layer data signal and the reference signal are demultiplexed by the receive processor 456, wherein the reference signal is to be used for channel estimation, and the data signal is subjected to multi-antenna detection in the multi-antenna receive processor 458 to recover any spatial stream destined for the first communication device 450. The symbols on each spatial stream are demodulated and recovered in a receive processor 456 and soft decisions are generated. The receive processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals that were 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. 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 demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover upper layer data packets from the second communication device 410. The upper layer packets are then provided to all protocol layers above the L2 layer. Various control signals may also be provided to L3 for L3 processing.
In the transmission from the first communication device 450 to the second communication device 410, an upper layer data packet is provided to a controller/processor 459 at the first communication device 450 using a data source 467. Data source 467 represents all protocol layers above the L2 layer. Similar to the transmit functions 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, implementing L2 layer functions for the user and control planes. The controller/processor 459 is also responsible for retransmission of lost packets and signaling to the second communication device 410. The transmit processor 468 performs modulation mapping, channel coding, and digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming, with the multi-antenna transmit processor 457 performing digital multi-antenna spatial precoding, after which the transmit processor 468 modulates the resulting spatial stream into a multi-carrier/single-carrier symbol stream, which is analog precoded/beamformed in the multi-antenna transmit processor 457 before being provided to the different antennas 452 via the transmitter 454. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a radio frequency symbol stream and provides it to an antenna 452.
In the transmission from the first communication device 450 to the second communication device 410, the function at the second communication device 410 is similar to the receiving function 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 radio frequency signals through its corresponding antenna 420, converts the received radio frequency signals to baseband signals, and provides the baseband signals to a multi-antenna receive processor 472 and a receive processor 470. The receive processor 470 and the multi-antenna receive processor 472 collectively implement the functions of the L1 layer. The controller/processor 475 implements L2 layer functions. The controller/processor 475 may be associated with a memory 476 that stores program codes and data. Memory 476 may 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 demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover upper layer data packets from the first communication device 450. Upper layer packets from the controller/processor 475 may be provided to all protocol layers above the core network or L2 layer, and various control signals may also be provided to the core network or L3 for L3 processing.
As an embodiment, the first communication device 450 apparatus includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus of the first communication device 450 to at least: triggering a first random access procedure as a response to any condition in the first set of conditions being met; the act of triggering a first random access procedure includes transmitting a first signal, the first signal being associated with a first SSB index, the first signal including a random access preamble; wherein the first SSB index relates to received power of SSBs indicated by all SSB indexes in the first SSB index set; when the received power of SSBs indicated by all SSB indexes in the first SSB index set is less than a first threshold, the first SSB index does not belong to the first SSB index set; when the received power of the SSB indicated by any SSB index in the first SSB index set is greater than the first threshold, the first SSB index belongs to the first SSB index set; the first condition set includes at least a condition that the received power of SSBs indicated by all SSB indexes in the first SSB index set is less than the first threshold; the first set of SSB indices includes at least one SSB index.
As an embodiment, the first communication device 450 apparatus includes: a memory storing a program of computer-readable instructions that, when executed by at least one processor, produce acts comprising: triggering a first random access procedure as a response to any condition in the first set of conditions being met; the act of triggering a first random access procedure includes transmitting a first signal, the first signal being associated with a first SSB index, the first signal including a random access preamble; wherein the first SSB index relates to received power of SSBs indicated by all SSB indexes in the first SSB index set; when the received power of SSBs indicated by all SSB indexes in the first SSB index set is less than a first threshold, the first SSB index does not belong to the first SSB index set; when the received power of the SSB indicated by any SSB index in the first SSB index set is greater than the first threshold, the first SSB index belongs to the first SSB index set; the first condition set includes at least a condition that the received power of SSBs indicated by all SSB indexes in the first SSB index set is less than the first threshold; the first set of SSB indices includes at least one SSB index.
As an embodiment, the second communication device 410 apparatus includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus of the first communication device 410 to at least: receiving a first signal, the first signal being associated with a first SSB index, the first signal comprising a random access preamble; wherein the first random access procedure is triggered in response to any condition in the first set of conditions being met; the first random access procedure is triggered including a first signal being sent; the first SSB index relates to received power of SSBs indicated by all SSB indices in the first SSB index set; when the received power of SSBs indicated by all SSB indexes in the first SSB index set is less than a first threshold, the first SSB index does not belong to the first SSB index set; when the received power of the SSB indicated by any SSB index in the first SSB index set is greater than the first threshold, the first SSB index belongs to the first SSB index set; the first condition set includes at least a condition that the received power of SSBs indicated by all SSB indexes in the first SSB index set is less than the first threshold; the first set of SSB indices includes at least one SSB index.
As an embodiment, the second communication device 410 apparatus includes: a memory storing a program of computer-readable instructions that, when executed by at least one processor, produce acts comprising: receiving a first signal, the first signal being associated with a first SSB index, the first signal comprising a random access preamble; wherein the first random access procedure is triggered in response to any condition in the first set of conditions being met; the first random access procedure is triggered including a first signal being sent; the first SSB index relates to received power of SSBs indicated by all SSB indices in the first SSB index set; when the received power of SSBs indicated by all SSB indexes in the first SSB index set is less than a first threshold, the first SSB index does not belong to the first SSB index set; when the received power of the SSB indicated by any SSB index in the first SSB index set is greater than the first threshold, the first SSB index belongs to the first SSB index set; the first condition set includes at least a condition that the received power of SSBs indicated by all SSB indexes in the first SSB index set is less than the first threshold; the first set of SSB indices includes at least one SSB index.
As an embodiment, the first communication device 450 corresponds to a first node in the present application; the second communication device 410 corresponds to a second node in the present application.
As an embodiment, the first communication device 450 is a UE.
As an embodiment, the first communication device 450 is an RSU.
As an embodiment, the second communication device 410 is a base station.
As an embodiment, the second communication device 410 is an RSU.
As one example, at least one of the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, and the controller/processor 459 is used to transmit a first signal in this application.
As an example, the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, at least one of the controller/processors 475 is used to receive the first signal in the present application.
As one example, the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, at least one of the transmit processor 416 or the controller/processor 475 is used to transmit the second signal in the present application.
As an embodiment, at least one of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456 or the controller/processor 459 is configured to receive a second signal in the present application.
As one embodiment, at least one of the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, and the controller/processor 459 is used to transmit a third set of signals in the present application.
As an example, the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, at least one of the controller/processors 475 is configured to receive a third set of signals in the present application.
As one example, at least one of the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, and the controller/processor 459 is used to transmit a fourth signal in this application.
As an example, the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, at least one of the controller/processors 475 is used to receive the fourth signal in the present application.
As one embodiment, at least one of the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, and the controller/processor 459 is used to transmit a fifth set of signals in the present application.
As an example, the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, at least one of the controller/processors 475 is configured to receive a fifth set of signals in the present application.
As one embodiment, the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, at least one of the transmit processor 416 or the controller/processor 475 is used to transmit the first signaling in the present application.
As an embodiment, at least one of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456 or the controller/processor 459 is configured to receive the first signaling in the present application.
As an example, the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, at least one of the transmit processor 416 or the controller/processor 475 is used to transmit the second signaling in the present application.
As an embodiment, at least one of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456 or the controller/processor 459 is used to receive the second signaling in the present application.
As one embodiment, the antenna 420, the transmitter 418, the multi-antenna transmit processor 471, at least one of the transmit processor 416 or the controller/processor 475 is used to transmit the second message of the present application.
As an embodiment, at least one of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456 or the controller/processor 459 is configured to receive a second message in the present application.
Example 5
Embodiment 5 illustrates a wireless signal transmission flow diagram according to one embodiment of the present application, as shown in fig. 5. It is specifically noted that the order in this example is not limiting of the order of signal transmission and the order of implementation in this application.
For the followingFirst node U51Receiving a second message in step S511; transmitting a first signal in step S512; receiving a second signaling in step S513; receiving a second signal in step S514; transmitting a fourth signal in step S515; the third set of signals is transmitted in step S516.
For the followingSecond node N52Transmitting a second message in step S521; receiving a first signal in step S522; transmitting a second signaling in step S523; transmitting a second signal in step S524; receiving a fourth signal in step S525; a third set of signals is received in step S526.
In embodiment 5, triggering a first random access procedure in response to any of the first set of conditions being met; the act of triggering a first random access procedure includes transmitting a first signal, the first signal being associated with a first SSB index, the first signal including a random access preamble; wherein the first SSB index relates to received power of SSBs indicated by all SSB indexes in the first SSB index set; when the received power of SSBs indicated by all SSB indexes in the first SSB index set is less than a first threshold, the first SSB index does not belong to the first SSB index set; when the received power of the SSB indicated by any SSB index in the first SSB index set is greater than the first threshold, the first SSB index belongs to the first SSB index set; the first condition set includes at least a condition that the received power of SSBs indicated by all SSB indexes in the first SSB index set is less than the first threshold; the first SSB index set includes at least one SSB index; receiving a second signal, the second signal comprising a first message, the first message indicating a first transmission mode; transmitting a third set of signals through the first transmission mode; wherein the second signal belongs to the first random access procedure; the received power of SSBs indicated by all SSB indexes in the first SSB index set is less than the first threshold; the first transmission mode is one of a dynamically scheduled transmission mode or a configuration grant transmission mode; the third set of signals includes at least one signal; receiving a second message, the second message indicating the first SSB index set; the second message indicates a second set of time-frequency resources; the second message is used to instruct the first node to enter an RRC inactive state; wherein the second set of time-frequency resources is reserved for the configuration grant transmission; the first message indicates a first set of time-frequency resources used to transmit the third set of signals, the first set of time-frequency resources including at least one time-frequency resource; wherein, the first sending mode is the sending mode of the configuration grant; any one of the first time-frequency resources belongs to the second time-frequency resource set; monitoring a first signaling in a first time window, the first signaling being used to indicate a time-frequency resource for transmitting one signal of the third set of signals; the first sending mode is the dynamically scheduled sending mode; the first message indicates the first time window, and the first time window is located between any two adjacent time domain resources in the time domain resource set of the second time-frequency resource set after the receiving time of the second signal; receiving second signaling, wherein the second signaling indicates a time-frequency resource, the time-frequency resource is used for transmitting a fourth signal, the fourth signal comprises at least part of data cached by the first node, and the transmitting time of the fourth signal is earlier than the transmitting time of the third signal set; the first node is in the RRC inactive state when transmitting the third set of signals.
As an embodiment, the second node is a base station of a serving cell of the first node.
As an embodiment, the first node and the second node communicate over an air interface.
As an embodiment, the air interface is a Uu interface.
As an embodiment, the second message is received over an air interface.
As an embodiment, the second message is used to instruct the first node to enter an RRC inactive state.
As an embodiment, the second message is RRC signaling.
As an embodiment, the second message is RRCRelease (RRC release) signaling.
As an embodiment, the second message is RRCRelease signaling, which includes a suspend configuration field.
As an embodiment, the second message comprises a configuration message of a configuration grant, the configuration grant being a configuration uplink grant (Configured Uplink Grant).
As one embodiment, the configuration grant is CG-SDT.
As one embodiment, the second message includes a first set of radio bearers.
As an embodiment, the second message indicates that data belonging to the first set of radio bearers may be transmitted in an RRC inactive state using time-frequency resources granted by a configuration.
As an embodiment, the third threshold is used to determine whether to select the transmission mode of the SDT (Small Data Transmission ) or the transmission mode of the non-SDT to transmit the MAC SDUs (Service Data Unit, traffic data units) belonging to the first radio bearer set.
As an embodiment, when the cached data quantity belonging to the first radio bearer set is not greater than the third threshold, selecting a transmission mode of the SDT; and when the cached data quantity belonging to the first radio bearer set is greater than the third threshold value, selecting a non-SDT sending mode.
As an embodiment, the third threshold is configured by the second node.
As an embodiment, the third threshold is cell-specific.
As an embodiment, the statistical method of the data amount of the buffered belonging to the first radio bearer set is the same as the statistical method of the BSR (Buffer Status Report ) for the first radio bearer set.
As an embodiment, the first radio Bearer set includes a DRB (data radio Bearer).
As an embodiment, the first set of radio bearers includes SRBs (SignalingRadio Bearer, signaling radio bearers).
As one embodiment, the first set of radio bearers includes MRBs (MBMS Pointto MultipointRadio Bearer, multimedia broadcast multicast service point-to-multipoint radio bearers).
As one embodiment, the second message indicates the first SSB index set.
As one embodiment, the second message explicitly indicates each SSB index in the first set of SSB indices.
As an embodiment, the first SSB index set is used by the first node for beam selection when transmitting using SDT transmission in RRC inactive state.
As an embodiment, the second message indicates the first threshold.
As an embodiment, the first threshold is indicated by an rsrp-threshold SSB (SSB reference signal received power threshold) field (field).
As an embodiment, the first threshold is indicated by a CG-SDT-rsrp-threshold SSB (CG-SDT-SSB reference signal received power threshold) field.
As an embodiment, the second message indicates a second set of time-frequency resources reserved for the configuration grant transmission.
As an embodiment, the second message indicates time domain resources and frequency domain resources of time-frequency resources in the second set of time-frequency resources.
As an embodiment, the second message indicates a starting time of a first time-frequency resource in the second set of time-frequency resources.
As an embodiment, the second message indicates a period of time domain resources in the second set of time frequency resources.
As an embodiment, the second message indicates frequency domain resources in the second set of time-frequency resources.
As an embodiment, the second set of time-frequency resources comprises periodic time-frequency resources.
As an embodiment, the time intervals between the time domain resources of any two adjacent time frequency resources in the second time frequency resource set are the same; wherein the second set of time-frequency resources comprises at least two time-frequency resources.
As an embodiment, the frequency domain resources of any two time-frequency resources in the second time-frequency resource set are the same; wherein the second set of time-frequency resources comprises at least two time-frequency resources.
As an embodiment, the second set of time-frequency resources is reserved for the first node to perform data transmission in an RRC inactive state.
As an embodiment, the second set of time-frequency resources comprises at least one time-frequency resource.
As one embodiment, a first receiver receives a second signal comprising a first message indicating a first transmission mode; the first transmitter transmitting a third set of signals over the first transmission mode; wherein the first SSB index does not belong to the first SSB index set; the first transmission mode is one of a dynamically scheduled transmission mode or a configuration grant transmission mode; the third set of signals includes at least one signal.
As an embodiment, the second signal comprises the first message indicating the first transmission mode only when the received power of SSBs indicated by all SSB indices in the first set of SSB indices is less than the first threshold.
As an embodiment, the second signal comprises the first message indicating the first transmission mode only if the received power of SSBs indicated by all SSB indices in the first set of SSB indices is not greater than the first threshold.
As an embodiment, the second signal comprises the first message indicating the first transmission mode only if the first SSB index does not belong to the first SSB index set.
As one embodiment, the first message is not received by the first node when the received power of the SSB indicated by any SSB index in the first set of SSB indexes is greater than the first threshold.
As an embodiment, the first node does not receive the first message when the received power of the SSB indicated by any SSB index in the first set of SSB indexes is not less than the first threshold.
As an embodiment, the first node does not receive the first message when the first SSB index belongs to the first SSB index set.
For one embodiment, the phrase not receiving the first message includes: the second signal is not received.
For one embodiment, the phrase not receiving the first message includes: the received second signal does not include the first message.
As an embodiment, the second signal is received over an air interface.
As one embodiment, the second signal is received through a PDSCH (Physical Downlink Shared Channel ).
As an embodiment, the second signal is received on a time-frequency resource scheduled by a PDCCH (Physical Downlink Control Channel ) addressed to a C-RNTI (Cell-Radio Network Temporary Identifier, cell radio network temporary identity) that is used to uniquely identify the first node at its serving Cell.
As an embodiment, the second signal belongs to the first random access procedure.
As an embodiment, the second signal includes Msg4 (message 4) in the first random access procedure, and the first random access procedure is a 4-step random access procedure.
As an embodiment, the second signal includes MsgB (message B) in the first random access procedure, which is a 2-step random access procedure.
As an embodiment, the second signal is associated with the first SSB index.
As an embodiment, the first message is a MAC CE (Control Element).
As an embodiment, the first message indicates a first transmission mode.
As an embodiment, the first transmission mode is one of a dynamically scheduled transmission mode or a configuration granted transmission mode.
As an embodiment, the first transmission mode is the dynamically scheduled transmission mode.
As an embodiment, the first transmission mode is a transmission mode of the configuration grant, and the transmission mode of the configuration grant is a configuration grant type 1.
As an embodiment, the third set of signals is transmitted over an air interface.
As an embodiment, the third set of signals is transmitted through the first transmission mode.
As an embodiment, when the first transmission mode is the dynamically scheduled transmission mode, any signal in the third signal set is transmitted on a dynamically scheduled time-frequency resource; and when the first transmission mode is the transmission mode granted by the configuration, any signal in the third signal set is transmitted on a pre-configured time-frequency resource.
As an embodiment, the third set of signals is transmitted over PUSCH (Physical Uplink Shared Channel ).
As an embodiment, the third set of signals comprises at least one signal.
As an embodiment, at least one signal of the third set of signals comprises at least one MAC SDU (Service Data Unit, traffic data unit); the at least one MAC SDU belongs to the first set of radio bearers.
As an embodiment, the data amount of the MAC SDU included in any signal of the third set of signals is not larger than the third threshold.
As an embodiment, the transmission time of any signal in the third signal set is later than the reception time of the second signal.
As an embodiment, the first message indicates a first set of time-frequency resources, which is used for transmitting the third set of signals, the first set of time-frequency resources comprising at least one time-frequency resource.
As an embodiment, the first message implicitly indicates a first set of time-frequency resources.
As an embodiment, when the first transmission mode is the transmission mode granted by the configuration, the first message implicitly indicates the first set of time-frequency resources.
As an embodiment, the first message does not explicitly indicate the first set of time-frequency resources.
As an embodiment, the first set of time-frequency resources comprises at least one time-frequency resource.
As an embodiment, the third set of signals is transmitted in the first set of time-frequency resources.
As one embodiment, the third set of signals is transmitted in the first set of time-frequency resources using a multi-antenna transmission parameter of the SSB indicated by the first SSB index.
As one embodiment, the first message indicates that the first transmission mode is a transmission mode granted by the configuration; wherein the first SSB index does not belong to the first SSB index set.
As an embodiment, any one of the first set of time-frequency resources belongs to the second set of time-frequency resources.
As an embodiment, the first set of time-frequency resources is a subset of the second set of time-frequency resources.
As an embodiment, at least one time-frequency resource of the second set of time-frequency resources does not belong to the first set of time-frequency resources.
As an embodiment, the first time-frequency resource in the second set of time-frequency resources does not belong to the first set of time-frequency resources.
As an embodiment, the first set of time-frequency resources includes time-frequency resources in the second set of time-frequency resources that are later than a time of reception of the second signal.
As one embodiment, monitoring a first signaling in a first time window, the first signaling being used to indicate a time-frequency resource for transmitting one of the third set of signals; the first sending mode is the dynamically scheduled sending mode.
As an embodiment, when the first transmission mode is the dynamically scheduled transmission mode, the first node transmits the third signal set on a dynamically scheduled time-frequency resource.
As an embodiment, the first message indicates the first time window.
As an embodiment, the first message indicates a starting instant of the first time window and a length of the first time window.
As an embodiment, the length of the first time window is symbolized.
As an embodiment, the length of the first time window is expressed in time slots.
As one embodiment, the length of the first time window is represented in subframes.
As one embodiment, the length of the first time window is expressed in milliseconds.
As one embodiment, the monitoring means includes searching.
As an embodiment, the monitoring means includes monitoring (monitor).
As an embodiment, the monitoring means comprises receiving.
As one embodiment, the phrase monitoring the first signaling includes: determining whether the first signaling is present by energy monitoring.
As one embodiment, the phrase monitoring the first signaling includes: determining whether the first signaling is present by coherent detection.
As one embodiment, the phrase monitoring the first signaling includes: determining whether the first signaling is present by maximum likelihood detection.
As one embodiment, the phrase monitoring the first signaling includes: and determining whether the first signaling exists through CRC detection.
As an embodiment, the first signaling is used to indicate time-frequency resources for transmitting one signal of the third set of signals.
As an embodiment, the first signaling is used to indicate that time domain resources of time-frequency resources transmitting one of the third set of signals belong to the time domain resource set of the second set of time-frequency resources.
As an embodiment, the first signaling is used to indicate that time domain resources of time-frequency resources transmitting one of the third set of signals do not belong to the time domain resource set of the second set of time-frequency resources.
As an embodiment, the first signaling is used to indicate that frequency domain resources of time-frequency resources transmitting one signal of the third set of signals are different from frequency domain resources of the second set of time-frequency resources.
As an embodiment, the first signaling is used to indicate that frequency domain resources of time-frequency resources transmitting one signal of the third set of signals are the same as the frequency domain resources of the second set of time-frequency resources.
As an embodiment, the first signaling is used to indicate that one signal of the third set of signals scheduled by the first signaling is associated with the first SSB index.
As an embodiment, the first signaling is associated with the first SSB index.
As an embodiment, the first signaling is PDCCH.
As an embodiment, the first signaling is DCI (Downlink Control Information ).
As an embodiment, the first signaling is physical layer signaling.
As one embodiment, the first message indicates that the first transmission mode is the dynamically scheduled transmission mode; wherein the first SSB index does not belong to the first SSB index set.
As a sub-embodiment of the above embodiment, time-frequency resources belonging to the second set of time-frequency resources after receiving the second signal cannot be reserved for the first node for transmitting the third set of signals.
As a sub-embodiment of the above embodiment, the first node is in a state of poor channel reception quality.
As a sub-embodiment of the above embodiment, the received power of the SSB indicated by the first SSB index is smaller than the first threshold and larger than the second threshold; wherein the first threshold is greater than the second threshold.
As an embodiment, the first time window is located between any two adjacent time domain resources in the time domain resource set of the second time-frequency resource set after the receiving time of the second signal.
As an embodiment, the first time window is located between any two adjacent time domain resources after the time of receipt of the second signal in the time domain resource set of the second time frequency resource set.
As an embodiment, second signaling is received, the second signaling indicating a time-frequency resource, the time-frequency resource being used for transmitting a fourth signal, the fourth signal comprising at least part of the data buffered by the first node.
As an embodiment, the second signaling is sent through PDCCH.
As an embodiment, the second signaling is DCI.
As an embodiment, the time domain resource of the time-frequency resource indicated by the second signaling is earlier than the time domain resource occupied by any signal in the third signal set.
As an embodiment, the time domain resource occupied by the second signaling and the time domain resource occupied by the second signal belong to the same time slot.
As an embodiment, the time domain resource occupied by the second signaling and the time domain resource occupied by the second signal belong to the same subframe.
As an embodiment, the time domain resource occupied by the second signaling is later than the time domain resource occupied by the second signal.
As an embodiment, the fourth signal is transmitted through PUSCH.
As an embodiment, the transmission time of the fourth signal is earlier than the transmission time of any signal in the third signal set.
As an embodiment, the transmission time of the fourth signal is later than the reception time of the second signal and earlier than the transmission time of any signal in the third signal set.
As an embodiment, the fourth signal comprises at least part of the data buffered at the first node.
As an embodiment, the data of the buffer belongs to the first set of radio bearers.
As an embodiment, msg3 (message 3) in the first random access procedure indicates the data amount of the buffered data, and the first random access procedure is a 4-step random access procedure.
As an embodiment, the MsgA in the first random access procedure indicates a data amount of the buffered data, and the first random access procedure is a 2-step random access procedure.
As one embodiment, when any one of the first set of conditions is satisfied, the first node caches data that cannot be transmitted on one of the second set of time-frequency resources; and sending the cached data through dynamic scheduling.
As an embodiment, the first node is in the RRC inactive state when transmitting the third set of signals.
As one embodiment, the first node performs CG-SDT transmission in an RRC inactive state, and after initiating a CG-SDT procedure, if any condition in the first set of conditions is satisfied, indicates, through a random access procedure, to the second node, and the second node indicates a transmission mode of subsequent data in the CG-SDT procedure.
As an embodiment, any signal in the third set of signals is associated with the first SSB index, wherein the first SSB index does not belong to the first SSB index set.
As one embodiment, before any signal in the third set of signals is transmitted in the transmission mode granted by the configuration, an evaluation is performed for the SSB indicated by the first SSB index.
As an embodiment, when an uplink grant received by the MAC sublayer of the first node is the configuration grant, an evaluation is performed for the SSB indicated by the first SSB index.
Example 6
Embodiment 6 illustrates a signal processing flow diagram according to one embodiment of the present application, as depicted in fig. 6. The flow in fig. 6 is performed in the first node.
In fig. 6, it is determined in step S601 whether the first SSB index belongs to a first SSB index set; if yes, go to step S602; if not, executing step S603; in step S602, determining that any signal in the fifth signal set is associated with one SSB index in the first SSB index set, where any signal in the fifth signal set occupies one time-frequency resource in the second time-frequency resource set; receiving a first message in step S603; in step S604, it is determined whether the first transmission mode is a transmission mode of a configuration grant; if yes, go to step S606; if not, go to step S605; in step S605, it is determined that the time-frequency resource occupied by any signal in the third signal set is dynamically scheduled, and any signal in the third signal set is associated with the first SSB index; in step S606, it is determined that any signal in the third set of signals occupies one time-frequency resource in the second set of time-frequency resources, any signal in the third set of signals being associated with the first SSB index.
As one embodiment, the first transmitter transmits a fifth set of signals; wherein the received power of the SSB indicated by any SSB index in the first set of SSB indices is greater than the first threshold; the time-frequency occupation occupied by the fifth signal set belongs to the second time-frequency resource set; any signal in the fifth set of signals is associated with one SSB index in the first set of SSB indices.
As an embodiment, the first transmitter, in response to any of the first set of conditions being met, triggers a first random access procedure; the act of triggering a first random access procedure includes transmitting a first signal, the first signal being associated with a first SSB index, the first signal including a random access preamble; wherein the first SSB index relates to received power of SSBs indicated by all SSB indexes in the first SSB index set; when the received power of SSBs indicated by all SSB indexes in the first SSB index set is less than a first threshold, the first SSB index does not belong to the first SSB index set; when the received power of the SSB indicated by any SSB index in the first SSB index set is greater than the first threshold, the first SSB index belongs to the first SSB index set; the first condition set includes at least a condition that the received power of SSBs indicated by all SSB indexes in the first SSB index set is less than the first threshold; the first SSB index set includes at least one SSB index; receiving a TA command in response to transmitting the first signal, the TA command being used to maintain uplink synchronization of the first node; a first receiver that receives a second message, the second message indicating the first SSB index set; the second message indicates a second set of time-frequency resources; the second message is used to instruct the first node to enter an RRC inactive state; wherein the second set of time-frequency resources is reserved for the configuration grant transmission; the first transmitter transmitting a fifth set of signals; wherein the received power of the SSB indicated by any SSB index in the first set of SSB indices is greater than the first threshold; the time-frequency occupation occupied by the fifth signal set belongs to the second time-frequency resource set; any signal in the fifth set of signals is associated with one SSB index in the first set of SSB indices; the first receiver receives second signaling, the second signaling indicates a time-frequency resource, the time-frequency resource is used for transmitting a fourth signal, the fourth signal comprises at least part of data buffered by the first node, and the transmitting time of the fourth signal is earlier than the transmitting time of the fifth signal set; the first node is in the RRC inactive state when transmitting the fifth set of signals.
As an embodiment, the fifth set of signals is used for transmitting data belonging to the CG-SDT procedure after the first random access procedure is over.
As an embodiment, the fifth set of signals is transmitted over PUSCH.
As an embodiment, the fifth set of signals comprises at least one signal.
As an embodiment, at least one signal of the fifth set of signals comprises at least one MAC SDU (Service Data Unit, traffic data unit); the at least one MAC SDU belongs to the first set of radio bearers.
As an embodiment, the data amount of the MAC SDU included in any signal of the fifth set of signals is not larger than the third threshold.
As an embodiment, the fifth signal set and the third signal set occupy the same time-frequency resource, and the SSB index associated with any signal in the fifth signal set is different from the SSB index associated with any signal in the third signal set; wherein, the transmission mode of the third signal set is the transmission mode of the configuration grant.
As one embodiment, when the received power of the SSB indicated by any SSB index in the first SSB index set is greater than the first threshold when the first random access procedure is triggered, at least one qualified SSB is included in SSBs indicated by all SSB indexes in the first SSB index set for subsequent data transmission in the CG-SDT procedure.
As an embodiment, when the received power of the SSB indicated by any SSB index in the first SSB index set is greater than the first threshold when the first random access procedure is triggered, the SSB index associated with any signal in the fifth signal set belongs to the first SSB index set.
As an embodiment, when the received power of the SSB indicated by any SSB index in the first SSB index set is not less than the first threshold when the first random access procedure is triggered, the SSB index associated with any signal in the fifth signal set belongs to the first SSB index set.
As an embodiment, when the received power of SSBs indicated by all SSB indexes in the first SSB index set is smaller than the first threshold when the first random access procedure is triggered, one qualified SSB is not included in SSBs indicated by all SSB indexes in the first SSB index set for subsequent data transmission in the CG-SDT procedure.
As an embodiment, when the received power of SSBs indicated by all SSB indexes in the first SSB index set when the first random access procedure is triggered is less than the first threshold, SSB indexes associated with any signal in the third signal set do not belong to the first SSB index set.
Example 7
Embodiment 7 illustrates a schematic diagram of a first message according to one embodiment of the present application, as shown in fig. 7.
As one embodiment, the first message includes a first MAC CE, the first MAC CE including at least one byte.
As an embodiment, the lowest bit of the first byte of the first MAC CE is used to indicate the first transmission mode.
As an embodiment, the lowest bit of the first byte of the first MAC CE is named as ST (scheduling type).
As one embodiment, when the lowest bit of the first byte of the first MAC CE is 0, the first transmission mode is indicated to be the dynamically scheduled transmission mode; and when the lowest bit of the first byte of the first MAC CE is 1, indicating that the first transmission mode is the transmission mode granted by the configuration.
As one embodiment, when the lowest bit of the first byte of the first MAC CE is 0, the first transmission mode is indicated as the transmission mode granted by the configuration; and when the lowest bit of the first byte of the second MAC CE is 1, indicating the first transmission mode to be the dynamically scheduled transmission mode.
As an embodiment, the first MAC CE includes only one byte, and the lowest bit of the one byte included in the first MAC CE is used to indicate the first transmission mode.
As a sub-embodiment of the above embodiment, when the first MAC CE indicates that the first transmission mode is the transmission mode of the configuration grant, the upper 7 bits of the one byte included in the first MAC CE are reserved.
As a sub-embodiment of the above embodiment, when the first MAC CE indicates that the first transmission mode is the dynamically scheduled transmission mode, the first MAC CE includes the upper 7 bits of the one byte indicating a start time of the first time window and a length of the first time window.
As an embodiment, the first MAC CE includes a variable number of bytes, a lowest bit of a first byte included in the first MAC CE is used to indicate the first transmission mode, and a high 7 bits of the first byte included in the first MAC CE are reserved.
As a sub-embodiment of the above embodiment, when the first MAC CE indicates that the first transmission mode is the transmission mode of the configuration grant, the first MAC CE includes only the first byte.
As a sub-embodiment of the above embodiment, when the first MAC CE indicates that the first transmission mode is the dynamically scheduled transmission mode, the first MAC CE includes a plurality of bytes, and bytes included in the first MAC CE other than the first byte indicate a start time of the first time window and a length of the first time window.
In case a of embodiment 7, the first MAC CE included in the first message includes only one byte, and the first transmission mode is the dynamically scheduled transmission mode.
In case B of embodiment 7, the first MAC CE included in the first message includes Q bytes, where Q is a positive integer greater than 1, and the first transmission mode is the dynamically scheduled transmission mode.
As one embodiment, the first MAC CE has a fixed size (fixed size).
As an embodiment, the name of the first MAC CE includes CG-SDT.
As an embodiment, the first MAC CE is named CG-SDT MAC CE.
As an embodiment, the logical channel identity of the first MAC CE is a positive integer between 35 and 46 including 35 and 46.
As an embodiment, the logical channel identity of the first MAC CE is a positive integer between 64 and 308 including 64 and 308.
Example 8
Embodiment 8 illustrates a schematic diagram of a time domain resource set of a second time-frequency resource set versus a time domain resource set of a first time-frequency resource set according to one embodiment of the present application, as shown in fig. 8. Wherein the dashed box represents the time domain resource set of the first time frequency resource set, the dotted box represents the time domain resource set of the second time frequency resource set, and the vertical line represents one time domain resource.
As an embodiment, at least a first time-frequency resource of the second set of time-frequency resources does not belong to the first set of time-frequency resources.
As an embodiment, a first time-frequency resource of the second set of time-frequency resources is used for transmitting MAC SDUs including CCCH.
As an embodiment, a signal transmitted in any one of the time-frequency resources belonging to the second set of time-frequency resources before the transmission time of the first signal is associated with one SSB index of the first set of SSB indices.
As an embodiment, the first set of time-frequency resources is not used for transmitting MAC SDUs including the CCCH.
As one embodiment, the CCCH is used to request RRC recovery.
As an embodiment, the CCCH includes an RRCResumeRequest (RRC resume request).
As an embodiment, the CCCH includes RRCResumeRequest1 (RRC resume request 1).
As an embodiment, the first node receives RRCRelease signaling after a time domain resource of a last time-frequency resource in the first set of time-frequency resources; in response to receiving the RRCRelease signaling, the first node enters an RRC inactive state.
As an embodiment, the RRCRelease signaling includes an updated CG-SDT configuration message.
As an embodiment, any one of the first set of time-frequency resources belongs to the second set of time-frequency resources; wherein the first transmission mode is a transmission mode granted by the configuration.
As an embodiment, the time domain resource of any one of the first set of time-frequency resources is later than the time instant of reception of the second signal.
As one embodiment, the first set of time-frequency resources includes M time-frequency resources, where the M time-frequency resources are last consecutive M time-frequency resources in the second set of time-frequency resources; wherein M is a positive integer not less than 1, and the second set of time-frequency resources includes more than M time-frequency resources.
Example 9
Embodiment 9 illustrates a schematic diagram of a relationship between a first time window and a time domain resource set of a second time-frequency resource set according to an embodiment of the present application, as shown in fig. 9.
As an embodiment, the first time window is located between any two adjacent time domain resources in the time domain resource set of the second time-frequency resource set after the receiving time of the second signal.
As an embodiment, the first time window is located after a reception instant of the second signal and before a start instant of any one of the time domain resources of the set of time domain resources of the second set of time frequency resources.
As an embodiment, the first message comprises a first time offset, the first time offset being a time interval between the start instant of the first time window and a start instant of one of the set of time domain resources of the second set of time frequency resources closest to the first time window.
As an embodiment, the end time of the first time window is no later than the start time of the closest one of the sets of time domain resources of the second set of time frequency resources.
As an embodiment, the time interval is symbolized.
As an embodiment, the time interval is represented by a time slot.
As an embodiment, the time interval is represented in subframes.
As an embodiment, the time interval is expressed in milliseconds (ms).
As an embodiment, the starting time of one time domain resource is the starting time of the first OFDM symbol of the time domain resource.
As an embodiment, the starting time of one time domain resource is the starting time of the first time slot of the time domain resource.
As an embodiment, the starting time of one time domain resource is the starting time of the first subframe of the time domain resource.
As an embodiment, the first time window is periodic.
As an embodiment, the time intervals of two adjacent first time windows are the same as the time intervals of two adjacent time domain resources in the time domain resource set of the second time frequency resource set.
As one embodiment, the first node monitors the first signaling in the first time window after receiving the second signal.
As an embodiment, the first signaling is used to indicate a time-frequency resource for transmitting one signal of the third set of signals; the time domain resource of the time-frequency resource is earlier than the starting time of the next first time window after the first time window in which the first signaling is received.
Example 10
Embodiment 10 illustrates a schematic diagram of a first SSB index and multiple antenna parameters according to one embodiment of the present application, as shown in fig. 10.
As an embodiment, channel sensing is performed prior to transmitting the first signal, the channel sensing being used to select a multi-antenna reception parameter of the SSB indicated by the first SSB index from K multi-antenna reception parameters.
As an embodiment, the channel perception comprises energy detection.
As an embodiment, the channel perception comprises a plurality of energy detections.
As an embodiment, the channel perception comprises sequence coherent detection.
As an embodiment, the channel awareness comprises CRC (Cyclic Redundancy Check ) detection.
As an embodiment, the channel awareness comprises SS-RSRP measurements.
As one embodiment, the channel sensing is performed using a plurality of multi-antenna reception parameters.
As one embodiment, the SSB indicated by the first SSB index is one of K SSBs; the K SSBs are respectively transmitted through K wireless signals, the K wireless signals are transmitted in K time units, and the K time units are mutually orthogonal.
As an embodiment, the K wireless signals are monitored in K time units, respectively, the K multi-antenna reception parameters are used for monitoring in the K time units, respectively, and the K multi-antenna reception parameters are indicated by K SSB indexes, respectively.
As one embodiment, when the first SSB index belongs to the first SSB index set, determining the first SSB index from K SSB indexes included in the first SSB index set; when the first SSB index does not belong to the first SSB index set, determining the first SSB index from K SSB indices not belonging to the first SSB index set.
Example 11
Embodiment 11 illustrates a block diagram of a processing device in a first node according to an embodiment of the present application, as shown in fig. 11. In fig. 11, a first node processing apparatus 1100 includes a first receiver 1101 and a first transmitter 1102. The first receiver 1101 includes at least one of the transmitter/receiver 418 (including the antenna 420), the receive processor 470, the multi-antenna receive processor 472, or the controller/processor 475 of fig. 4 of the present application; the first transmitter 1102 includes at least one of the transmitter/receiver 418 (including the antenna 420), the transmit processor 416, the multi-antenna transmit processor 471, or the controller/processor 475 of fig. 4 of the present application.
In embodiment 11, the first transmitter 1102 triggers a first random access procedure in response to any one of a first set of conditions being met; the act of triggering a first random access procedure includes transmitting a first signal, the first signal being associated with a first SSB index, the first signal including a random access preamble; wherein the first SSB index relates to received power of SSBs indicated by all SSB indexes in the first SSB index set; when the received power of SSBs indicated by all SSB indexes in the first SSB index set is less than a first threshold, the first SSB index does not belong to the first SSB index set; when the received power of the SSB indicated by any SSB index in the first SSB index set is greater than the first threshold, the first SSB index belongs to the first SSB index set; the first condition set includes at least a condition that the received power of SSBs indicated by all SSB indexes in the first SSB index set is less than the first threshold; the first set of SSB indices includes at least one SSB index.
As one embodiment, the first receiver 1101 receives a second signal comprising a first message indicating a first transmission mode; the first transmitter 1102 transmits a third set of signals via the first transmission mode; wherein the second signal belongs to the first random access procedure; the received power of SSBs indicated by all SSB indexes in the first SSB index set is less than the first threshold; the first transmission mode is one of a dynamically scheduled transmission mode or a configuration grant transmission mode; the third set of signals includes at least one signal.
As an embodiment, the first receiver 1101 receives a second message, the second message indicating the first SSB index set; the second message indicates a second set of time-frequency resources; the second message is used to instruct the first node to enter an RRC inactive state; wherein the second set of time-frequency resources is reserved for the configuration grant transmission.
As one embodiment, the first receiver 1101 receives a second signal comprising a first message indicating a first transmission mode; the first transmitter 1102 transmits a third set of signals via the first transmission mode; wherein the second signal belongs to the first random access procedure; the received power of SSBs indicated by all SSB indexes in the first SSB index set is less than the first threshold; the first transmission mode is one of a dynamically scheduled transmission mode or a configuration grant transmission mode; the third set of signals includes at least one signal; the first receiver 1101 receiving a second message indicating the first SSB index set; the second message indicates a second set of time-frequency resources; the second message is used to instruct the first node to enter an RRC inactive state; wherein the second set of time-frequency resources is reserved for the configuration grant transmission; the first message indicates a first set of time-frequency resources used to transmit the third set of signals, the first set of time-frequency resources including at least one time-frequency resource; wherein, the first sending mode is the sending mode of the configuration grant; any one of the first time-frequency resources belongs to the second time-frequency resource set.
As one embodiment, the first receiver 1101 receives a second signal comprising a first message indicating a first transmission mode; the first transmitter 1102 transmits a third set of signals via the first transmission mode; wherein the second signal belongs to the first random access procedure; the received power of SSBs indicated by all SSB indexes in the first SSB index set is less than the first threshold; the first transmission mode is one of a dynamically scheduled transmission mode or a configuration grant transmission mode; the third set of signals includes at least one signal; the first receiver 1101 receiving a second message indicating the first SSB index set; the second message indicates a second set of time-frequency resources; the second message is used to instruct the first node to enter an RRC inactive state; wherein the second set of time-frequency resources is reserved for the configuration grant transmission; the first receiver 1101 monitors a first signaling in a first time window, the first signaling being used to indicate a time-frequency resource for transmitting one of the third set of signals; the first sending mode is the dynamically scheduled sending mode; the first message indicates the first time window, the first time window being located between any two adjacent time domain resources in the time domain resource set of the second set of time-frequency resources after the time of receipt of the second signal.
As an embodiment, the first receiver 1101 receives second signaling, where the second signaling indicates a time-frequency resource, and the time-frequency resource is used to transmit a fourth signal, where the fourth signal includes at least part of the data buffered by the first node, and a transmission time of the fourth signal is earlier than a transmission time of the third signal set.
As one embodiment, the first receiver 1101 receives a second signal comprising a first message indicating a first transmission mode; the first transmitter 1102 transmits a third set of signals via the first transmission mode; wherein the second signal belongs to the first random access procedure; the received power of SSBs indicated by all SSB indexes in the first SSB index set is less than the first threshold; the first transmission mode is one of a dynamically scheduled transmission mode or a configuration grant transmission mode; the third set of signals includes at least one signal; the first receiver 1101 receiving a second message indicating the first SSB index set; the second message indicates a second set of time-frequency resources; the second message is used to instruct the first node to enter an RRC inactive state; wherein the second set of time-frequency resources is reserved for the configuration grant transmission; the first node is in the RRC inactive state when transmitting the third set of signals.
Example 12
Embodiment 12 illustrates a block diagram of the processing means in the second node according to an embodiment of the present application, as shown in fig. 12. In fig. 12, the second node processing arrangement 1200 comprises a second receiver 1201 and a second transmitter 1202. The second receiver 1201 includes at least one of the transmitter/receiver 418 (including the antenna 420), the receive processor 470, the multi-antenna receive processor 472, or the controller/processor 475 of fig. 4 of the present application; the second transmitter 1202 includes at least one of a transmitter/receiver 418 (including an antenna 420), a transmit processor 416, a multi-antenna transmit processor 471, or a controller/processor 475 of fig. 4 of the present application.
In embodiment 10, the second receiver 1201 receives a first signal, the first signal being associated with a first SSB index, the first signal comprising one random access preamble; wherein the first random access procedure is triggered in response to any condition in the first set of conditions being met; the first random access procedure is triggered including a first signal being sent; the first SSB index relates to received power of SSBs indicated by all SSB indices in the first SSB index set; when the received power of SSBs indicated by all SSB indexes in the first SSB index set is less than a first threshold, the first SSB index does not belong to the first SSB index set; when the received power of the SSB indicated by any SSB index in the first SSB index set is greater than the first threshold, the first SSB index belongs to the first SSB index set; the first condition set includes at least a condition that the received power of SSBs indicated by all SSB indexes in the first SSB index set is less than the first threshold; the first set of SSB indices includes at least one SSB index.
As one embodiment, the second transmitter 1202 transmits a second signal comprising a first message indicating a first transmission mode; the second receiver 1201 receives a third set of signals; wherein the third set of signals is transmitted through the first transmission mode; the second signal belongs to the first random access procedure; the received power of SSBs indicated by all SSB indexes in the first SSB index set is less than the first threshold; the first transmission mode is one of a dynamically scheduled transmission mode or a configuration grant transmission mode; the third set of signals includes at least one signal.
As an embodiment, the second transmitter 1202 sends a second message, the second message indicating the first SSB index set; the second message indicates a second set of time-frequency resources; the second message is used to instruct the sender of the first signal to enter an RRC inactive state; wherein the second set of time-frequency resources is reserved for the configuration grant transmission.
As one embodiment, the second transmitter 1202 transmits a second signal comprising a first message indicating a first transmission mode; the second receiver 1201 receives a third set of signals; wherein the third set of signals is transmitted through the first transmission mode; the second signal belongs to the first random access procedure; the received power of SSBs indicated by all SSB indexes in the first SSB index set is less than the first threshold; the first transmission mode is one of a dynamically scheduled transmission mode or a configuration grant transmission mode; the third set of signals includes at least one signal; the second transmitter 1202 transmitting a second message indicating the first SSB index set; the second message indicates a second set of time-frequency resources; the second message is used to instruct the sender of the first signal to enter an RRC inactive state; wherein the second set of time-frequency resources is reserved for the configuration grant transmission; the first message indicates a first set of time-frequency resources used to transmit the third set of signals, the first set of time-frequency resources including at least one time-frequency resource; wherein, the first sending mode is the sending mode of the configuration grant; any one of the first time-frequency resources belongs to the second time-frequency resource set.
As one embodiment, the second transmitter 1202 transmits a second signal comprising a first message indicating a first transmission mode; the second receiver 1201 receives a third set of signals; wherein the third set of signals is transmitted through the first transmission mode; the second signal belongs to the first random access procedure; the received power of SSBs indicated by all SSB indexes in the first SSB index set is less than the first threshold; the first transmission mode is one of a dynamically scheduled transmission mode or a configuration grant transmission mode; the third set of signals includes at least one signal; the second transmitter 1202 transmitting a second message indicating the first SSB index set; the second message indicates a second set of time-frequency resources; the second message is used to instruct the sender of the first signal to enter an RRC inactive state; wherein the second set of time-frequency resources is reserved for the configuration grant transmission; the second transmitter 1202 transmits first signaling in a first time window, the first signaling being used to indicate a time-frequency resource for transmitting one signal of the third set of signals; the first sending mode is the dynamically scheduled sending mode; the first message indicates the first time window, the first time window being located between any two adjacent time domain resources in the time domain resource set of the second set of time-frequency resources after the time of receipt of the second signal.
As an embodiment, the second transmitter 1202 sends second signaling, where the second signaling indicates a time-frequency resource, and the time-frequency resource is used to send a fourth signal, where the fourth signal includes at least part of data buffered by the sender of the first signal, and a sending time of the fourth signal is earlier than a sending time of the third signal set.
As one embodiment, the second transmitter 1202 transmits a second signal comprising a first message indicating a first transmission mode; the second receiver 1201 receives a third set of signals; wherein the third set of signals is transmitted through the first transmission mode; the second signal belongs to the first random access procedure; the received power of SSBs indicated by all SSB indexes in the first SSB index set is less than the first threshold; the first transmission mode is one of a dynamically scheduled transmission mode or a configuration grant transmission mode; the third set of signals includes at least one signal; the second transmitter 1202 transmitting a second message indicating the first SSB index set; the second message indicates a second set of time-frequency resources; the second message is used to instruct the sender of the first signal to enter an RRC inactive state; wherein the second set of time-frequency resources is reserved for the configuration grant transmission; the sender of the first signal is in the RRC inactive state when receiving the third set of signals.
Those of ordinary skill in the art will appreciate that all or a portion of the steps of the above-described methods may be implemented by a program that instructs associated hardware, and the program may be stored on a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiment may be implemented in a hardware form or may be implemented in a software functional module form, and the application is not limited to any specific combination of software and hardware. The first type of communication node or UE or terminal in the present application includes, but is not limited to, a mobile phone, a tablet computer, a notebook, an internet card, a low power device, an eMTC (enhanced Machine Type Communication ) device, an NB-IoT device, a vehicle-mounted communication device, an aircraft, an airplane, an unmanned plane, a remote control plane, and other wireless communication devices. The second type of communication node or base station or network side device in the present application includes, but is not limited to, a macro cellular base station, a micro cellular base station, a home base station, a relay base station, an eNB, a gNB, a transmission receiving node TRP (Transmission and Reception Point, a transmitting and receiving point), a relay satellite, a satellite base station, an air base station, a test device, for example, a transceiver device simulating a function of a base station part, a signaling tester, and other wireless communication devices.
It will be appreciated by those skilled in the art that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics thereof. Accordingly, the presently disclosed embodiments are considered in all respects to be illustrative and not restrictive. The scope of the invention is indicated by the appended claims rather than by the foregoing description, and all changes that come within the meaning and range of equivalents are intended to be embraced therein.
Claims (10)
1. A first node for wireless communication, comprising:
a first transmitter that triggers a first random access procedure in response to any one of a first set of conditions being satisfied; the act of triggering a first random access procedure includes transmitting a first signal, the first signal being associated with a first SSB index, the first signal including a random access preamble;
wherein the first SSB index relates to received power of SSBs indicated by all SSB indexes in the first SSB index set; when the received power of SSBs indicated by all SSB indexes in the first SSB index set is less than a first threshold, the first SSB index does not belong to the first SSB index set; when the received power of the SSB indicated by any SSB index in the first SSB index set is greater than the first threshold, the first SSB index belongs to the first SSB index set; the first condition set includes at least a condition that the received power of SSBs indicated by all SSB indexes in the first SSB index set is less than the first threshold; the first set of SSB indices includes at least one SSB index.
2. The first node of claim 1, comprising:
a first receiver that receives a second signal, the second signal comprising a first message indicating a first transmission mode;
the first transmitter transmitting a third set of signals over the first transmission mode;
wherein the second signal belongs to the first random access procedure; the received power of SSBs indicated by all SSB indexes in the first SSB index set is less than the first threshold; the first transmission mode is one of a dynamically scheduled transmission mode or a configuration grant transmission mode; the third set of signals includes at least one signal.
3. The first node according to claim 1 or 2, comprising:
the first receiver receiving a second message, the second message indicating the first SSB index set; the second message indicates a second set of time-frequency resources; the second message is used to instruct the first node to enter an RRC inactive state;
wherein the second set of time-frequency resources is reserved for the configuration grant transmission.
4. A first node according to claim 3, characterized in that the first message indicates a first set of time-frequency resources, which is used for transmitting the third set of signals, which first set of time-frequency resources comprises at least one time-frequency resource;
Wherein, the first sending mode is the sending mode of the configuration grant; any one of the first time-frequency resources belongs to the second time-frequency resource set.
5. A first node according to claim 3, comprising:
the first receiver monitoring for first signaling in a first time window, the first signaling being used to indicate a time-frequency resource for transmitting one of the third set of signals;
the first sending mode is the dynamically scheduled sending mode; the first message indicates the first time window, the first time window being located between any two adjacent time domain resources in the time domain resource set of the second set of time-frequency resources after the time of receipt of the second signal.
6. The first node according to any of claims 2 to 5, comprising:
the first receiver receives a second signaling, where the second signaling indicates a time-frequency resource, and the time-frequency resource is used to transmit a fourth signal, where the fourth signal includes at least part of data buffered by the first node, and a transmission time of the fourth signal is earlier than a transmission time of the third signal set.
7. The first node according to any of claims 3 to 6, characterized in that the first node is in the RRC inactive state when transmitting the third set of signals.
8. A second node for wireless communication, comprising:
a second receiver for receiving a first signal, the first signal being associated with a first SSB index, the first signal comprising a random access preamble;
wherein the first random access procedure is triggered in response to any condition in the first set of conditions being met; the first random access procedure is triggered including a first signal being sent; the first SSB index relates to received power of SSBs indicated by all SSB indices in the first SSB index set; when the received power of SSBs indicated by all SSB indexes in the first SSB index set is less than a first threshold, the first SSB index does not belong to the first SSB index set; when the received power of the SSB indicated by any SSB index in the first SSB index set is greater than the first threshold, the first SSB index belongs to the first SSB index set; the first condition set includes at least a condition that the received power of SSBs indicated by all SSB indexes in the first SSB index set is less than the first threshold; the first set of SSB indices includes at least one SSB index.
9. A method in a first node for wireless communication, comprising:
triggering a first random access procedure as a response to any condition in the first set of conditions being met; the act of triggering a first random access procedure includes transmitting a first signal, the first signal being associated with a first SSB index, the first signal including a random access preamble;
wherein the first SSB index relates to received power of SSBs indicated by all SSB indexes in the first SSB index set; when the received power of SSBs indicated by all SSB indexes in the first SSB index set is less than a first threshold, the first SSB index does not belong to the first SSB index set; when the received power of the SSB indicated by any SSB index in the first SSB index set is greater than the first threshold, the first SSB index belongs to the first SSB index set; the first condition set includes at least a condition that the received power of SSBs indicated by all SSB indexes in the first SSB index set is less than the first threshold; the first set of SSB indices includes at least one SSB index.
10. A method in a second node for wireless communication, comprising:
Receiving a first signal, the first signal being associated with a first SSB index, the first signal comprising a random access preamble;
wherein the first random access procedure is triggered in response to any condition in the first set of conditions being met; the first random access procedure is triggered including a first signal being sent; the first SSB index relates to received power of SSBs indicated by all SSB indices in the first SSB index set; when the received power of SSBs indicated by all SSB indexes in the first SSB index set is less than a first threshold, the first SSB index does not belong to the first SSB index set; when the received power of the SSB indicated by any SSB index in the first SSB index set is greater than the first threshold, the first SSB index belongs to the first SSB index set; the first condition set includes at least a condition that the received power of SSBs indicated by all SSB indexes in the first SSB index set is less than the first threshold; the first set of SSB indices includes at least one SSB index.
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