A method and apparatus for collecting information in wireless communication

Abstract

The application discloses a method and device for collecting information in wireless communication. A first node measures a first cell at a first time; collects a first set of information in response to all conditions in a first set of conditions being met; wherein the first node is in an RRC non-connected state, the first set of information is dependent on the first time, and the first set of conditions includes that the first cell meets a cell selection criterion. The application can effectively collect information for optimizing network energy saving.

Description

Technical Field

[0001] This application relates to methods and apparatus in wireless communication systems, and more particularly to methods and apparatus for collecting information in wireless communication systems. Background Technology

[0002] Information collection is widely used in wireless communication systems. UEs (User Equipment) in RRC (Radio Resource Control) connected state and / or RRC disconnected state perform measurements according to network configuration and report the recorded measurement results to the network. Information collection includes MDT (Minimization of Drive Tests) for network planning and optimization to improve network coverage, and QoE (Quality of Experience) measurements for optimizing transmission.

[0003] Energy saving is crucial for environmental sustainability. It encompasses both UE (User Equipment) energy saving and network energy saving (NES), with NES significantly reducing operating costs. Regarding network energy saving, the transmission of periodic common signals / channels (including SSB, SIB1, etc.) is independent of the number of active users in the network, consuming considerable network power. In 5G Release 18, the 3GPP (3rd Generation Partner Project) RAN (Radio Access Network) first conducted standardization research on SSB-less (Synchronization-Free / Physical Broadcast Channel Block) SCell (Secondary Cell) operation. Release 19 further standardized research on OD (on-demand)-SSB and OD (on-demand)-SIB1 (System Information Block 1), aiming to save network energy by reducing the transmission of common signals / channels. Furthermore, NES is a key candidate technology for the future evolution of 5G+ and 6G communication technologies, aiming to further improve network energy saving without impacting the UE experience. Summary of the Invention

[0004] The inventors discovered through research that supporting and optimizing network energy saving requires measurement information collected by the UE, and that it is necessary to study how to collect cell selection-related information in the RRC disconnected state.

[0005] To address the aforementioned problems, this application discloses a solution. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined. Furthermore, while the motivation of this application is to optimize network energy saving through information collection, the information collection described here can also be used to optimize other designs, including but not limited to network coverage, network beamforming, UE access latency, UE experience, and UE power saving. In addition, adopting a unified solution for different technologies helps reduce hardware complexity and cost. Specifically, the interpretation of terms, nouns, functions, and variables in this application (unless otherwise specified) can be found in the definitions of the 3GPP specification protocols TS38 and TS37 series.

[0006] This application discloses a method used in a first node of wireless communication, characterized by comprising:

[0007] The first cell was measured immediately.

[0008] As a response to the fulfillment of all conditions in the first condition set, a first information set is collected;

[0009] Wherein, the first node is in an RRC disconnected state, the first information set depends on the first time, and the first condition set includes the first cell satisfying cell selection criteria.

[0010] As an example, determining whether all conditions included in the first set of conditions are satisfied depends on measuring the first cell at the first time.

[0011] The first condition set in the above method defines the events that trigger information collection. Event-triggered information collection can effectively record the time of the event and the cell state at the time of the event, for use in cell optimization.

[0012] The above method can save UE storage space by collecting the first information set when all conditions in the first condition set are met.

[0013] The above method collects the first information set when all conditions in the first condition set are met, aiming to perform information collection for a specific cell in order to perform targeted network optimization.

[0014] The above method provides flexibility and scalability for collecting information in the RRC disconnected state through the first set of conditions.

[0015] As an example, the first node is a UE or a terminal.

[0016] According to one aspect of this application, the above method is characterized by:

[0017] The first set of conditions includes the first cell not being barred.

[0018] The above method is used to collect information in cells that are not prohibited, which can save UE storage space.

[0019] According to one aspect of this application, the above method is characterized by:

[0020] The measurement of the first cell at the first time includes: measuring the channel quality of the first cell at the first time, and receiving at least one of the following two: a first SSB from the first cell.

[0021] As an example, the channel quality of the first cell is RSRP (Reference Signal Received Power) and / or RSRQ (Reference Signal Received Quality).

[0022] According to one aspect of this application, the above method is characterized by:

[0023] The first information set depends on the first time, including: the first information set depends on the received first SIB1, and the reception time of the first SIB1 depends on the first time.

[0024] As an example, the first SSB (SS (Synchronization Signals) / PBCH (Physical Broadcast Channel) block) is received from the first cell at the first time, and the first SSB indicates the reception of the time and frequency resources of the first SIB1 (System Information Block 1).

[0025] The above method can effectively record the configuration information received in SIB1, which includes the configuration information of SSB and the configuration information of other SIBs.

[0026] The information recorded in the above methods can be used to optimize the transmission of SSB and / or SIB, thereby achieving the beneficial effect of network energy saving.

[0027] According to one aspect of this application, the above method is characterized by:

[0028] The first information set depends on the transmission period of the broadcast information of the first cell received at the second time, and the second time depends on the first time.

[0029] The above method can effectively record received broadcast information.

[0030] The information recorded in the above method can be used to optimize the transmission of broadcast information and achieve the beneficial effect of network energy saving.

[0031] According to one aspect of this application, the above method is characterized by:

[0032] The collection of the first information set includes recording the first information set into a first variable.

[0033] As an example, the first variable is cached in the AS (Access Stratum).

[0034] According to one aspect of this application, the above method is characterized by:

[0035] Send a first message indicating that there is available information in the first variable;

[0036] The first message is used to confirm the successful completion of the RRC connection, or the first message is UEAssistanceInformation.

[0037] The above method allows the recipient of the first message to know the status of the information collected in the first variable, so that the recipient of the first message can request the first node to upload the collected information and use the obtained information to optimize the network.

[0038] As one embodiment, a first UEInformationRequest is received; in response to receiving the first UEInformationRequest, a first UEInformationResponse is sent through a first SRB (Signaling Radio Bearer), the first UEInformationResponse including the information requested by the first UEInformationRequest;

[0039] The first UEInformationResponse includes at least some of the information included in the first variable; the first SRB has a lower priority than the SRB2 (signaling radio bearer 2).

[0040] As an example, the first SRB is SRB4 (Signaling Radio Bearer 4).

[0041] As an example, the first UEInformationRequest includes a first field, which is used to request the upload of at least a portion of the information included in the first variable.

[0042] According to one aspect of this application, the above method is characterized by:

[0043] Receive a second message in RRC connection state, the second message including the configuration parameters for collecting the first information set;

[0044] In response to receiving the second message, the information recorded in the first variable is discarded.

[0045] This application discloses a first node used for wireless communication, characterized in that it comprises:

[0046] The first receiver measures the first cell at a first time; and collects the first information set in response to the satisfaction of all conditions in the first condition set.

[0047] Wherein, the first node is in an RRC non-connected state, the first information set depends on the first time, and the first condition set includes the first cell satisfying the cell selection criteria.

[0048] According to one aspect of this application, the above method is characterized by:

[0049] The first set of conditions includes the first cell not being barred.

[0050] According to one aspect of this application, the above method is characterized by:

[0051] The measurement of the first cell at the first time includes: measuring the channel quality of the first cell at the first time, and receiving at least one of the following two: a first SSB from the first cell.

[0052] According to one aspect of this application, the above method is characterized by:

[0053] The first information set depends on the first time, including: the first information set depends on the received first SIB1, and the reception time of the first SIB1 depends on the first time.

[0054] According to one aspect of this application, the above method is characterized by:

[0055] The first information set depends on the transmission period of the broadcast information of the first cell received at the second time, and the second time depends on the first time.

[0056] According to one aspect of this application, the above method is characterized by:

[0057] The collection of the first information set includes recording the first information set into a first variable.

[0058] According to one aspect of this application, the above method is characterized by:

[0059] The first transmitter sends a first message, which indicates that there is available information in the first variable;

[0060] The first message is used to confirm the successful completion of the RRC connection, or the first message is UEAssistanceInformation.

[0061] According to one aspect of this application, the above method is characterized by:

[0062] The first receiver receives a second message in RRC connection state, the second message including configuration parameters for collecting the first information set; in response to receiving the second message, it discards the information recorded in the first variable. Attached Figure Description

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

[0064] Figure 1 A signal transmission flowchart of a first node according to an embodiment of this application is illustrated;

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

[0066] Figure 3 A schematic diagram illustrating a wireless protocol architecture for the user plane and control plane according to an embodiment of this application is provided.

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

[0068] Figure 5 A flowchart illustrating a wireless signal transmission process according to an embodiment of this application is provided.

[0069] Figure 6 A schematic diagram illustrating the relationship between the first time and the first SSB according to an embodiment of this application is provided.

[0070] Figure 7 A schematic diagram illustrating the relationship between the first SSB and the first SIB1 at a first moment according to an embodiment of this application is provided.

[0071] Figure 8 A schematic diagram illustrating the relationship between a first time, a first SSB, a first SIB1, a second time, and broadcast information according to an embodiment of this application is provided.

[0072] Figure 9 A schematic diagram illustrating the structure of a first variable according to an embodiment of this application is provided;

[0073] Figure 10 A structural block diagram of a processing apparatus in a first node according to an embodiment of this application is illustrated. Detailed Implementation

[0074] The technical solution of this application will be further described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be arbitrarily combined with each other.

[0075] Example 1

[0076] Example 1 illustrates a signal transmission flowchart of a first node according to an embodiment of this application, as shown in the attached diagram. Figure 1 As shown.

[0077] In Example 1, the first node 100 measures the first cell at a first time in step 101; and collects a first information set in step 102 as a response that all conditions in the first condition set are met; wherein the first node is in an RRC disconnected state, the first information set depends on the first time, and the first condition set includes the first cell satisfying the cell selection criteria.

[0078] As an example, the first cell is measured at the first moment; wherein the first node is in the RRC non-connected state.

[0079] As an example, the RRC disconnected state is either the RRC idle state or the RRC inactive state.

[0080] As one embodiment, measuring the first cell includes performing a cell search.

[0081] As one embodiment, the measurement of the first cell includes: receiving a synchronization signal to obtain time-frequency synchronization with the first cell, and detecting the PCI (physical layer cell ID) of the first cell.

[0082] As one embodiment, measuring the first cell includes measuring the channel quality of the first cell.

[0083] As an example, the channel quality of the first cell includes the received level (RX level) of the first cell.

[0084] As an example, the channel quality of the first cell includes the RSRP of the first cell.

[0085] As an example, the channel quality of the first cell includes the RSRQ of the first cell.

[0086] As one embodiment, the measurement of the first cell includes: receiving a first SSB.

[0087] As an example, the first SSB is a CD (cell-defining)-SSB.

[0088] As an example, the first SSB is an NCD (non-cell-defining)-SSB.

[0089] As an example, the first SSB indicates the PCI of the first cell.

[0090] As an example, the first SSB is located on the synchronization raster.

[0091] As an example, the channel quality of the first cell is measured for the first SSB.

[0092] As one example, a first information set is collected in response to the fulfillment of all conditions in the first condition set.

[0093] As an example, when any condition in the first set of conditions is not met, the collection of the first set of information is abandoned.

[0094] The above embodiments can save UE storage space.

[0095] As an example, cell selection is performed, which includes measuring the first cell.

[0096] As a sub-example of the above embodiments, the cell selection is initial cell selection.

[0097] As a sub-example of the above embodiments, the cell selection is any cell selection.

[0098] As a sub-example of the above embodiments, the cell selection is Stored information cell selection.

[0099] As an example, the cell selection is based on CD-SSB.

[0100] As an example, a first SIB1 is received on the first cell; wherein the first SSB indicates scheduling information, the scheduling information including time and frequency resources for receiving the first SIB1.

[0101] As an example, whether the first set of conditions is satisfied depends on measuring the channel quality of the first cell at the first time.

[0102] As one embodiment, the first set of conditions includes the first cell satisfying cell selection criteria.

[0103] As an example, the cell selection criteria are S criteria.

[0104] As one example, satisfying the cell selection criteria includes satisfying:

[0105] Srxlev>0 AND Squal>0;

[0106] in,

[0107] Srxlev=Qrxlevmeas–(Qrxlevmin+Qrxlevminoffset)–Pcompensation-Qoffsettemp

[0108] Squal=Qqualmeas–(Qqualmin+Qqualminoffset)–Qoffsettemp.

[0109] in,

[0110] Srxlev is the cell selection RX level value (dB).

[0111] Squal is the cell selection quality value (dB).

[0112] The Qoffsettemp is a configured temporary offset value (dB) applied to a cell;

[0113] The Qrxlevmeas is the measured cell RX level value (RSRP).

[0114] The Qqualmeas mentioned is the measured cell quality value (RSRQ).

[0115] Qrxlevmin is the minimum required RX level in the cell (dBm).

[0116] Qqualmin is the minimum required quality level in the cell (dB).

[0117] The Qrxlevminoffset is the offset value relative to Qrxlevmin;

[0118] The Qqualminoffset is the offset value relative to Qqualmin;

[0119] The Pcompensation is a compensation value that is related to the transmit power and whether the first cell is FR1 (Frequency Range 1) or FR2 (Frequency Range 2).

[0120] Specifically, the criteria for meeting cell selection requirements can be found in the relevant chapters of 3GPP protocol 38.304, and will not be elaborated here.

[0121] As an example, the first SIB1 indicates the parameters of the cell selection criteria.

[0122] As an example, the first SIB1 indicates the Qrxlevmin, the Qqualmin, the Qrxlevminoffset, and the Qqualminoffset.

[0123] As an example, whether the first set of conditions is satisfied also depends on the first SSB received.

[0124] As an example, the first set of conditions includes the first cell not being blocked.

[0125] As a sub-implementation of the above embodiment, the first SSB indicates whether the first cell is blocked.

[0126] The cells for which information is collected in the above embodiments include receivable cells, and optimization can be performed on receivable cells while saving UE storage space.

[0127] As an example, the first set of conditions includes at least two conditions, one of which is that the first cell meets the cell selection criteria, and the other is that the first cell is not prohibited.

[0128] As a sub-implementation of the above embodiments, the first cell is an acceptable cell or a suitable cell.

[0129] As an example, whether the first set of conditions is satisfied also depends on the received first SIB1.

[0130] As one example, the first set of conditions includes the first cell not being reserved.

[0131] As a sub-implementation of the above embodiment, the first SIB1 indicates whether the first cell is reserved.

[0132] As an example, the first set of conditions includes the fact that the first cell is not a tracking area in the list of forbidden tracking areas forroaming.

[0133] As a sub-implementation of the above embodiment, the first SIB1 indicates whether the first cell belongs to the tracking area in the roaming prohibited tracking area list.

[0134] As an example, the first set of conditions includes whether the PLMN (Public Land Mobile Network) of the first cell is a selected PLMN, a registered PLMN, an equivalent PLMN, or a home PLMN.

[0135] As a sub-implementation of the above embodiment, the first SIB1 indicates the PLMN of the first cell.

[0136] As a sub-implementation of the above embodiments, the first node determines the selected PLMN, the registered PLMN, the equivalent PLMN, or the home PLMN.

[0137] As an example, the first set of conditions includes whether the SNPN (Stand-alone Non-Public Network) of the first cell is a selected SNPN, a registered SNPN, or an equivalent SNPN.

[0138] As a sub-example of the above embodiment, the first SIB1 indicates the SNPN of the first cell.

[0139] As a sub-implementation of the above embodiments, the first node determines the selected SNPN, or the registered SNPN, or the equivalent SNPN on its own.

[0140] As an example, the first set of conditions includes whether the PNI-NPN of the first cell is a selected PNI-NPN or a registered PNI-NPN.

[0141] As a sub-implementation of the above embodiment, the first SIB1 indicates the PNI-NPN of the first cell.

[0142] As a sub-implementation of the above embodiments, the first node determines the selected PNI (Public Network Integrated)-NPN (Non-Public Network) or the registered PNI-NPN.

[0143] The above five embodiments only collect information on applicable cells, which can be optimized for applicable cells while saving UE storage space.

[0144] As an example, the first set of conditions includes at least the following conditions: the first cell meets the cell selection criteria; the first cell is neither banned nor reserved; the PLMN of the first cell is a selected PLMN, or a registered PLMN, or an equivalent PLMN, or a home PLMN; and the first cell does not belong to the tracking area in the list of forbidden tracking areas for roaming.

[0145] As a sub-implementation of the above embodiments, the first cell is a suitable cell.

[0146] As one embodiment, the first set of conditions includes at least one of the first cell broadcast indication supporting OD-SSB or OD-SIB1.

[0147] The above embodiments support cells that can send broadcast information flexibly.

[0148] As an example, the first set of conditions includes the first cell broadcast indication being collectable information.

[0149] The above embodiments ensure the collection of reasonable information.

[0150] As a sub-implementation of the two embodiments described above, broadcasting is conducted via the first SSB.

[0151] As a sub-implementation of the two embodiments described above, broadcasting is performed via SIB, wherein the SIB includes the first SIB1.

[0152] As one example, the first set of conditions includes a first timer running.

[0153] As an example, the first timer is T300 (timer 300), or T302 (timer 302), or T390 (timer 390).

[0154] As an example, in response to the satisfaction of all conditions in the first set of conditions, the first node camps in the first cell; the camping is either normal camping or camping on any cell.

[0155] The above embodiments can save UE storage space by collecting the first information set when the first node is camped in the first cell.

[0156] As one embodiment, collecting the first information set includes storing or buffering the first information set.

[0157] As one embodiment, collecting the first information set includes logging the first information set.

[0158] As one embodiment, collecting the first information set includes recording the first information set into a first variable.

[0159] As an example, the first variable is a UE variable.

[0160] As an example, the storage of the first variable is implemented by the UE.

[0161] As an example, the first variable is used to store the results of cell measurements.

[0162] As an example, the first variable is used to store the measurement result triggered by the event; wherein the event is measuring a cell and all conditions in the first set of conditions are met.

[0163] As an example, when the memory occupied by the first variable is not full, and each time an event is satisfied, a measurement record is added to the first variable.

[0164] As an example, the configuration is preserved when the memory occupied by the first variable is full.

[0165] As an example, when the memory occupied by the first variable is full, the configuration is deleted.

[0166] As a sub-implementation of the two embodiments described above, the configuration includes configuration parameters for collecting the first information set; the configuration parameters include the triggering event.

[0167] As an example, when the memory occupied by the first variable is full, the information recorded in the first variable is retained.

[0168] As an example, when the memory occupied by the first variable is full, the information recorded in the first variable is discarded.

[0169] As one embodiment, the first information set includes multiple pieces of information.

[0170] As an example, the first information set depends on the first time.

[0171] As one embodiment, the first information set depending on the first time includes: the first information set is related to the first time.

[0172] As one embodiment, the first information set depending on the first time includes: the first time being used to determine the first information set.

[0173] As one embodiment, the first information set includes the first time.

[0174] As one embodiment, the first information set depending on the first time includes: the first information set depending on broadcast information received at the first time.

[0175] As an example, the first information set includes at least a portion of the received broadcast information.

[0176] As one embodiment, the first information set includes the transmission period of the received broadcast information.

[0177] The information recorded in the above three embodiments can be used to optimize the transmission of broadcast information in the cell, thereby achieving the beneficial effect of network energy saving.

[0178] In Embodiment 1, the first node measures the first cell at the first time, including receiving the first SSB, the first SSB indicating the time-frequency resources for receiving the first SIB1, and the first node receiving the first SIB1 according to the indicated time-frequency resources; the first node determines whether all conditions in the first condition set are satisfied based on the information carried in the first SSB and the first SIB1 respectively; when all conditions in the first condition set are satisfied, the first information set is collected; when any condition in the first condition set is not satisfied, the collection of the first information set is abandoned.

[0179] Example 2

[0180] Example 2 illustrates a network architecture diagram according to an embodiment of this application, as shown in the attached diagram. Figure 2 As shown.

[0181] Figure 2Network architecture 200 is described, which is the network architecture of NR 6G, NR 5G-A, NR 5G, LTE (Long-Term Evolution), and LTE-A (Long-Term Evolution Advanced) systems. The NR 6G, NR 5G-A, NR 5G, LTE, or LTE-A network architecture 200 may be referred to as 6GS (6G system) / 5GS (5G System) / EPS (Evolved Packet System) 200, or some other suitable terminology. The 6GS / 5GS / EPS 200 may include one or more UEs (User Equipment) 201, RANs (Radio Access Networks) 202, 6GCs (6G core networks) / 5GCs (5G Core Networks) / EPCs (Evolved Packet Cores) 210, HSSs (Home Subscriber Servers) / UDMs (Unified Data Management) 220, and Internet services 230. The 6GS / 5GS / EPS can interconnect with other access networks, but these entities / interfaces are not shown for simplicity. As shown in the figure, the 6GS / 5GS / EPS provides packet-switched services; however, those skilled in the art will readily understand that the various concepts presented throughout this application can be extended to networks providing circuit-switched services or other cellular networks. The RAN includes node 203 and other nodes 204. Node 203 provides user and control plane protocol termination toward the UE 201. Node 203 can connect to other nodes 204 via an inter-node interface (e.g., an Xn interface, or a backhaul link). The control plane protocol of the inter-node interface (e.g., the XnAP protocol) is used to transmit control plane messages for the wireless network, and the user plane protocol is used to transmit user plane data. Node 203 may also be referred to as an eNB, gNB, base station, base transceiver station, radio base station, radio transceiver, transceiver function, Basic Service Set (BSS), Extended Service Set (ESS), TRP (Transmission Reception Point), or some other suitable term. In an NTN (Non-Terrestrial Network) network, Node 203 can be a satellite, an aircraft, or a ground base station relayed via satellite. Node 203 provides UE 201 with access to the 6GC / 5GC / EPC210.Examples of UE201 include cellular phones, smartphones, Session Initiation Protocol (SIP) phones, laptops, personal digital assistants (PDAs), satellite radios, GPS devices, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, drones, aircraft, narrowband IoT devices, machine-type communication devices, land vehicles, automobiles, in-vehicle equipment, in-vehicle communication units, wearable devices, or any other similar functional devices. Those skilled in the art may also refer to UE201 as a mobile station, subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handheld device, user agent, mobile client, client, or any other suitable term. Node 203 connects to 6GC / 5GC / EPC210 via a core network interface, which may also be referred to as S1, NG, or any other suitable term. The 6GC / 5GC / EPC210 includes the MME (Mobility Management Entity), AMF (Authentication Management Field), and SMF (Session Management Function) 211, other MMEs / AMFs / SMFs 214, the S-GW (Service Gateway) / UPF (User Plane Function) 212, and the P-GW (Packet Data Network Gateway) / UPF 213. The MME / AMF / SMF 211 is the control node that handles signaling between the UE201 and the 6GC / 5GC / EPC210. ​​Generally, the MME / AMF / SMF 211 provides bearer and connection management. All user IP (Internet Protocol) packets are transmitted through the S-GW / UPF 212, which is itself connected to the P-GW / UPF 213. The P-GW provides UE IP address allocation and other functions. The P-GW / UPF213 connects to Internet service 230. Internet service 230 includes carrier-compliant Internet protocol services, specifically including Internet, intranet, IMS (IP Multimedia Subsystem), and PS (Packet Switching) services.

[0182] As an example, UE201 corresponds to the first node in this application.

[0183] As an example, node 203 corresponds to the second node in this application.

[0184] As an example, the UE201 is a user equipment.

[0185] As an example, the UE201 is an AI-enabled device.

[0186] As an example, node 203 is an AI-enabled device.

[0187] As an example, the core network 210 is an AI-enabled device.

[0188] As an example, node 203 is a macrocell base station.

[0189] As an example, node 203 is a microcell base station.

[0190] As an example, node 203 is a pico cell base station.

[0191] As an example, node 203 is a femtocell.

[0192] As an example, node 203 is a base station device that supports large latency differences.

[0193] As an example, node 203 is a flight platform device.

[0194] As one example, node 203 is a satellite device.

[0195] As an example, node 203 is a base station device that supports large latency differences.

[0196] As one embodiment, the node 203 is a test device (e.g., a transceiver device simulating part of the functions of a base station, a signaling tester).

[0197] As an example, the wireless link between the UE201 and the node203 includes a cellular link.

[0198] As an example, the wireless link from the UE201 to the node203 is an uplink, which is used to perform uplink transmissions.

[0199] As an example, the wireless link from node 203 to UE 201 is a downlink, which is used to perform downlink transmission.

[0200] As an example, the UE201 and the node203 are connected via a Uu interface.

[0201] Example 3

[0202] Example 3 illustrates a schematic diagram of a wireless protocol architecture for the user plane and control plane according to an embodiment of this application, as shown in the attached diagram. Figure 3 As shown. Figure 3 This is a schematic diagram illustrating an embodiment of a wireless protocol architecture for the user plane 350 and the control plane 300. Figure 3The radio protocol architecture of the UE and gNB control plane 300 is illustrated using 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. L1 layer will be referred to as PHY301 in this document. Layer 2 (L2 layer) 305 sits above PHY301 and is responsible for the link between the UE and gNB through PHY301. L2 layer 305 includes the MAC (Medium Access Control) sublayer 302, the RLC (Radio Link Control) sublayer 303, and the PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the gNB on the network side. The PDCP sublayer 304 provides data encryption and integrity protection, and also provides cross-cell mobility support for the UE between gNBs. RLC sublayer 303 provides packet segmentation and reassembly, and implements retransmission of lost packets through ARQ (Automatic Repeat Request). RLC sublayer 303 also provides duplicate packet detection and protocol error detection. MAC sublayer 302 provides mapping between logical channels and transport channels, and multiplexing of logical channels. MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) within a cell among UEs. MAC sublayer 302 is also responsible for HARQ (Hybrid Automatic Repeat Request) operations. RRC (Radio Resource Control) sublayer 306 in Layer 3 (L3) of 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 user plane 350 includes Layer 1 (L1 layer) and Layer 2 (L2 layer). The radio protocol architecture in user plane 350 is largely the same as the corresponding layers and sublayers in control plane 300 for physical layer 351, PDCP sublayer 354 in L2 layer 355, RLC sublayer 353 in L2 layer 355, and MAC sublayer 352 in L2 layer 355. However, PDCP sublayer 354 also provides header compression for upper layer packets to reduce radio transmission overhead. L2 layer 355 in user plane 350 also includes SDAP (Service Data Adaptation Protocol) sublayer 356. SDAP sublayer 356 is responsible for mapping between QoS streams and data radio bearers (DRBs) to support service diversity.The UE's radio protocol architecture in the user plane 350 may include some or all of the protocol sublayers of SDAP sublayer 356, PDCP sublayer 354, RLC sublayer 353, and MAC sublayer 352 at the L2 layer. Although not illustrated, the UE may also have several upper layers above the L2 layer 355, including a network layer (e.g., IP layer) terminating at the P-GW on the network side and an application layer terminating at the other end of the connection (e.g., remote UE, server, etc.).

[0203] As an example, Appendix Figure 3 The wireless protocol architecture described herein is applicable to the first node in this application.

[0204] As an example, Appendix Figure 3 The wireless protocol architecture described herein is applicable to the second node in this application.

[0205] As an example, the first message in this application is generated in the RRC306.

[0206] As an example, the second message in this application is generated in the RRC306.

[0207] As an example, the collection of the first information set in this application occurs at RRC306.

[0208] As an example, the measurement of the first cell in this application occurs in PHY301 or PHY351.

[0209] As an example, the measurement of the first cell in this application occurs in the RRC306.

[0210] As an example, the L2 layer 305 or 355 belongs to a higher layer or an upper layer.

[0211] As an example, the RRC sublayer 306 in the L3 layer belongs to a higher layer or an upper layer.

[0212] As an example, the L1 layer is a lower layer, or a lower layer.

[0213] Example 4

[0214] Example 4 illustrates a hardware module schematic diagram of a communication device according to an embodiment of this application, as shown in the attached diagram. Figure 4 As shown. Figure 4 This is a block diagram of a first communication device 450 and a second communication device 410 communicating with each other in the access network.

[0215] The first communication device 450 includes a controller / processor 459, a memory 460, a data source 467, a transmitting processor 468, a receiving processor 456, a multi-antenna transmitting processor 457, a multi-antenna receiving processor 458, a transmitter / receiver 454, and an antenna 452.

[0216] The second communication device 410 includes a controller / processor 475, a memory 476, a data source 477, a receiver processor 470, a transmitter processor 416, a multi-antenna receiver processor 472, a multi-antenna transmitter processor 471, a transmitter / receiver 418, and an antenna 420.

[0217] In the transmission from the second communication device 410 to the first communication device 450, at the second communication device 410, upper-layer data packets from the core network or from the data source 477 are provided to the controller / processor 475. 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, the controller / processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation for the first communication device 450 based on various priority metrics. The controller / processor 475 is also responsible for retransmitting lost packets and signaling to the first communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the L1 layer (i.e., the physical layer). Transmit processor 416 performs encoding and interleaving to facilitate forward error correction (FEC) at the second communication device 410, and 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-QAM). Multi-antenna transmit processor 471 performs digital spatial precoding on the encoded and modulated symbols, including codebook-based and non-codebook-based precoding, and beamforming processing, generating one or more spatial streams. Transmit processor 416 then maps each spatial stream to subcarriers, multiplexes it with a reference signal (e.g., a pilot) in the time and / or frequency domains, and subsequently uses inverse fast Fourier transform (IFFT) to generate a physical channel carrying the time-domain multicarrier symbol stream. Multi-antenna transmit processor 471 then performs transmit analog precoding / beamforming operations on the time-domain multicarrier symbol stream. Each transmitter 418 converts the baseband multicarrier symbol stream provided by the multi-antenna transmitter processor 471 into an radio frequency stream, which is then provided to different antennas 420.

[0218] In the transmission from the second communication device 410 to the first communication device 450, at the first communication device 450, each receiver 454 receives a signal through its corresponding antenna 452. Each receiver 454 recovers the information modulated onto the radio frequency carrier and converts the radio frequency stream into a baseband multicarrier symbol stream, which is then provided to the receiver processor 456. The receiver processor 456 and the multi-antenna receiver processor 458 implement various signal processing functions of the L1 layer. The multi-antenna receiver processor 458 performs receive analog precoding / beamforming operations on the baseband multicarrier symbol stream from the receiver 454. The receiver processor 456 uses a Fast Fourier Transform (FFT) to convert the baseband multicarrier symbol stream after the receive analog precoding / beamforming operations from the time domain to the frequency domain. In the frequency domain, the physical layer data signal and the reference signal are demultiplexed by the receiver processor 456, where the reference signal is used for channel estimation, and the data signal is recovered in the multi-antenna receiver processor 458 after multi-antenna detection to recover any spatial stream destined for the first communication device 450. Symbols on each spatial stream are demodulated and recovered in the receive processor 456, generating soft decisions. The receive processor 456 then decodes and deinterleaves the soft decisions to recover the upper-layer data and control signals transmitted by the second communication device 410 over 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 Layer 2. The controller / processor 459 may be associated with a memory 460 storing program code and data. The memory 460 may be referred to as computer-readable media. In the transmission from the second communication device 410 to the first communication device 450, the controller / processor 459 provides multiplexing, packet reassembly, decryption, header decompression, and control signal processing between the transport and logical channels to recover higher-layer data packets from the second communication device 410. The upper-layer data packets are then provided to all protocol layers above Layer 2. Various control signals may also be provided to Layer 3 for Layer 3 processing.

[0219] In the transmission from the first communication device 450 to the second communication device 410, at the first communication device 450, upper-layer data packets are provided to the controller / processor 459 using a data source 467. The data source 467 represents all protocol layers above the L2 layer. Similar to the transmission 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 the logical and transport channels, implementing L2 layer functions for the user plane and control plane. The controller / processor 459 is also responsible for retransmitting lost packets and signaling to the second communication device 410. Transmit processor 468 performs modulation mapping and channel coding processing, while multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based and non-codebook-based precoding, and beamforming processing. Subsequently, transmit processor 468 modulates the generated spatial stream into a multi-carrier / single-carrier symbol stream. After analog precoding / beamforming operations in multi-antenna transmit processor 457, the stream is provided to different antennas 452 via transmitter 454. Each transmitter 454 first converts the baseband symbol stream provided by multi-antenna transmit processor 457 into a radio frequency symbol stream before providing it to antenna 452.

[0220] 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 into baseband signals, and provides the baseband signals to the multi-antenna receiving processor 472 and the receiving processor 470. The receiving processor 470 and the multi-antenna receiving processor 472 jointly implement the L1 layer function. The controller / processor 475 implements the L2 layer function. The controller / processor 475 may be associated with a memory 476 storing program code and data. The memory 476 may be referred to as computer-readable media. In the transmission from the first communication device 450 to the second communication device 410, the controller / processor 475 provides multiplexing between the transmission and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover the upper-layer data packets from the first communication device 450. Upper-layer data packets from the controller / processor 475 can be provided to the core network or all protocol layers above the L2 layer, and various control signals can also be provided to the core network or L3 for L3 processing.

[0221] As one embodiment, the first communication device 450 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor, and the first communication device 450 at least: measures a first cell at a first time; and collects a first information set in response to all conditions in a first set of conditions being met; wherein the first node is in an RRC disconnected state, the first information set depends on the first time, and the first set of conditions includes the first cell satisfying cell selection criteria.

[0222] As one embodiment, the first communication device 450 includes: a memory storing a computer-readable instruction program that generates actions when executed by at least one processor, the actions including: measuring a first cell at a first time; and collecting a first information set in response to all conditions in a first set of conditions being met; wherein the first node is in an RRC disconnected state, the first information set depends on the first time, and the first set of conditions includes the first cell satisfying cell selection criteria.

[0223] As one embodiment, the second communication device 410 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor. The second communication device 410 at least: receives a first message and sends a second message.

[0224] As one embodiment, the second communication device 410 includes: a memory storing a computer-readable instruction program that produces actions when executed by at least one processor, the actions including: receiving a first message and sending a second message.

[0225] As an example, the first node in this application corresponds to the first communication device 450.

[0226] As an example, the first node in this application includes the first communication device 450.

[0227] As an example, the second node in this application corresponds to the second communication device 410.

[0228] As an example, the second node in this application includes the second communication device 410.

[0229] As one embodiment, the first communication device 450 is a UE, or a terminal.

[0230] As an example, the first communication device 450 is a relay node.

[0231] As one embodiment, the second communication device 410 is a base station.

[0232] As one embodiment, the second communication device 410 is a base station distribution unit.

[0233] As one embodiment, the second communication device 410 is a piece of code in the distribution unit of a base station.

[0234] As one embodiment, at least one of the antenna 452, the receiver 454, the multi-antenna receiver processor 458, the receiver processor 456, or the controller / processor 459 is used to perform the measurement of the first cell in this application.

[0235] As one embodiment, the controller / processor 459 is used to perform the collection of the first information set in this application.

[0236] As an example, at least one of the antenna 452, the transmitter 454, the multi-antenna transmitter processor 457, the transmitter processor 468, or the controller / processor 459 is used to transmit the first message in this application.

[0237] As an example, at least one of the antenna 420, the receiver 418, the multi-antenna receiving processor 472, the receiving processor 470, or the controller / processor 475 is used to receive the first message in this application.

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

[0239] As one embodiment, at least one of the antenna 452, the receiver 454, the multi-antenna receiving processor 458, the receiving processor 456, or the controller / processor 459 is used to receive the second message in this application.

[0240] Example 5

[0241] Example 5 illustrates a wireless signal transmission flowchart according to an embodiment of this application, as shown in the attached diagram. Figure 5 As shown. In the appendix Figure 5 In this process, the first node N51 and the second node N52 communicate via a wireless interface.

[0242] for First node N51 In step S511, a second message is received; in step S512, information recorded in the first variable is discarded; in step S513, the first cell is measured at a first time; in step S514, a first information set is collected; and in step S515, a first message is sent.

[0243] for Second node N52 In step S521, a second message is sent; in step S522, a first message is received.

[0244] In Example 5, a first cell is measured at a first time; a first information set is collected in response to all conditions in a first condition set being met; wherein the first node is in an RRC disconnected state, the first information set depends on the first time, and the first condition set includes the first cell meeting the cell selection criteria; the first condition set includes the first cell not being barred; collecting the first information set includes recording the first information set in a first variable; sending a first message, the first message indicating that there is available information in the first variable; wherein the first message is used to confirm successful completion of the RRC connection, or the first message is UEAssistanceInformation; receiving a second message in the RRC connected state, the second message including the configuration parameters for collecting the first information set; and discarding the information recorded in the first variable in response to receiving the second message.

[0245] Appendix of Example 5 Figure 5 This applies when all conditions in the first set of conditions are met; when any condition in the first set of conditions is not met, step S514 is not executed.

[0246] Appendix of Example 5 Figure 5 This applies when there is available information in the first variable; when there is no available information in the first variable, step S515 may not be executed.

[0247] As one embodiment, the second node N52 is the sustaining base station of the serving cell of the first node N51.

[0248] As one embodiment, the second node N52 includes the sustaining base station of the serving cell of the first node N51.

[0249] As one example, the second node N52 is a gNB or a 6G base station.

[0250] As one embodiment, the second node N52 includes a gNB or a 6G base station.

[0251] As an example, the first node N51 is a UE or a terminal.

[0252] As an example, a second message is received in the RRC connection state, the second message including the configuration parameters for collecting the first information set.

[0253] As an example, the second message is an RRC message.

[0254] As an example, the second message is one or more IEs (Information Elements) included in RRCReconfiguration.

[0255] As an example, the second message is one or more fields included in an IE within RRCReconfiguration.

[0256] As an example, the second message is one or more IEs included in RRCRelease (RRC release).

[0257] As an example, the second message is one or more fields included in an IE of RRCRelease.

[0258] As a sub-implementation of the two embodiments described above, in response to receiving the second message, the system enters the RRC disconnected state.

[0259] As an example, the name of the second message includes "report".

[0260] As an example, the name of the second message includes "meas".

[0261] As an example, the name of the second message includes "idle".

[0262] As an example, the name of the second message includes "inactive".

[0263] As an example, the second message indicates the configuration parameters for collecting the first set of information.

[0264] As one embodiment, the configuration parameters for collecting the first set of information include an event that triggers the collection of the first set of information.

[0265] As one embodiment, the configuration parameters for collecting the first set of information include the first set of conditions.

[0266] As one embodiment, the configuration parameters for collecting the first information set include the content included in the first information set.

[0267] As one embodiment, in response to receiving the second message, the configuration parameters for collecting the first set of information are stored.

[0268] As an example, in response to receiving the second message, the configuration parameters of the first information set are stored in a second variable; wherein, the second variable is a UE variable, and the storage of the second variable is implemented by the UE.

[0269] As an example, in response to receiving the second message, the information recorded in the first variable is discarded.

[0270] The above embodiments discard outdated information in the first variable to ensure consistency between newly recorded information and configuration information.

[0271] As an example, discarding the information recorded in the first variable means clearing the memory storing the first variable.

[0272] As an example, discarding the information recorded in the first variable means releasing the first variable.

[0273] Although not in the appendix of Example 5 Figure 5 As shown, but after step S511 and before step S512, the first node N51 enters the RRC non-connected state.

[0274] Specifically, the first node N51 entering the RRC disconnected state may include: the DataInactivityTimer expiring, receiving an RRCReject message, receiving an RRCRelease message, or an RLF (Radio Link Failure) occurring, or powering on, or entering network coverage from outside coverage.

[0275] As an example, the first node N51 performs cell selection when entering the RRC disconnected state.

[0276] As an example, the first node N51 performs cell selection during the transition from RM (Registration Management) to DEREGISTERED (unregistered) to RM-REGISTERED (registered).

[0277] As an example, the first node N51 performs cell selection during the transition from CM (Connection Management) to IDLE (idle state connection management) to CM-CONNECTED (connected state connection management).

[0278] As an example, the first node N51 performs cell selection during the transition from CM-CONNECTED to CM-IDLE.

[0279] As an example, in the RRC disconnected state, the first node N51 performs cell selection, including measuring the first cell.

[0280] As an example, the result of cell selection includes the first node N51 residing in the first cell.

[0281] As an example, the result of cell selection includes the first node N51 not being able to camp on the first cell.

[0282] As an example, when all conditions in the first condition set are met, the first information set is collected, including recording the first information set into the first variable.

[0283] Although not in the appendix of Example 5 Figure 5 As shown, but after step S514 and before step S515, the first node N51 enters the RRC connection state.

[0284] As an example, the first node N51 enters the RRC connection state by requesting an RRC connection, which includes requesting to establish an RRC connection or requesting to restore an RRC connection.

[0285] Specifically, the first node N51 sends an RRCSetupRequest to establish an RRC connection, and the second node N52 sends an RRCSetup instruction to establish an RRC connection; upon receiving the RRCSetup, the first node N51 enters the RRC connection state.

[0286] Specifically, the first node N51 sends an RRC Resume Request to request the restoration of the RRC connection, and the second node N52 sends an RRC Resume Instruction to restore the RRC connection; upon receiving the RRC Resume, the first node N51 enters the RRC connection state.

[0287] As an example, a first message is sent in the RRC connection state, and the first message is an RRC message.

[0288] As an example, the first message indicates that there is available information in the first variable.

[0289] As an example, the first message includes a UE-MeasurementsAvailable IE, which includes a second field, the value of which indicates that the available information is present in the first variable.

[0290] As an example, the name of the second field includes logMeasAvailable (available measurement records).

[0291] As an example, the name of the second domain includes SSB.

[0292] As an example, the name of the second field includes cellSelection.

[0293] As an example, the available information in the first variable includes: there are at least M pieces of information in the first variable; wherein M is 1 or a positive integer greater than 1.

[0294] As an example, the available information in the first variable includes: the amount of data of the information recorded in the first variable is greater than or not less than a threshold; wherein, the amount of data is one of the number of bytes, the number of entries, or the amount of memory used.

[0295] As one embodiment, the available information in the first variable includes: the memory used to store the first variable is full.

[0296] As one embodiment, the available information in the first variable includes: the remaining storage space of the memory used to store the first variable is less than or no greater than a threshold.

[0297] As an example, the first message also indicates the size of the available information included in the first variable.

[0298] The above four embodiments provide the second node N52 with information on the amount of information collected, so that the second node N52 can allocate reasonable uplink transmission resources to send the available information recorded in the first variable; it can also avoid the first node N51 frequently indicating available information to the second node N52.

[0299] As an example, the first message is used to confirm the successful completion of the RRC connection.

[0300] As a sub-implementation of the above embodiment, completing the RRC connection means completing the RRC connection establishment, and the first message is RRCSetupComplete (RRC establishment completed).

[0301] As a sub-implementation of the above embodiment, completing the RRC connection means completing the RRC connection resumption, and the first message is RRCResumeComplete (RRC resumption complete).

[0302] As a sub-implementation of the above embodiment, completing the RRC connection means completing the RRC connection reconfiguration, and the first message is RRCReconfigurationComplete.

[0303] In the above embodiment, after the first node N51 enters the RRC connection state, it promptly indicates to the second node N52 that there is available information in the first variable so that the second node N52 can promptly request the upload of the available information.

[0304] As an example, the first message is UEAssistanceInformation.

[0305] The above embodiments can support the first node N51 to actively indicate to the second node N52 that there is available information in the first variable, so that the second node N52 can request the upload of the available information, avoiding the available information being discarded due to insufficient storage space of the first node N51.

[0306] Although not in the appendix of Example 5 Figure 5 As shown, however, after step S515 of the first node N51 and step S522 of the second node N52, there may also be an uploading step of the available information stored in the first variable.

[0307] One approach is that the second node N52 requests the first node N51 to upload the available information based on the fact that the first node N51 has the available information in the first variable indicated in the first message.

[0308] Specifically, the second node N52 sends a request message requesting the first node N51 to upload the available information recorded in the first variable; the first node N51 sends a response message, which includes at least part of the available information recorded in the first variable; if the response message only carries part of the available information, the response message further carries indication information, indicating that there is still available information to be transmitted; the second node N52 can continue to request the upload of the remaining available information according to the indication information.

[0309] Specifically, the request message is UEInformationRequest (User Equipment Information Request), and the response message is UEInformationResponse (User Equipment Information Response).

[0310] Specifically, the available information recorded in the first variable is transmitted through the control plane (CP), that is, the response message is sent through the SRB (Signaling Radio Bearer).

[0311] It should be noted that the second node N52's request for the first node N51 to upload the available information stored in the first variable is implemented by the second node N52.

[0312] Another method is that the first node N51 can actively upload the stored available information.

[0313] Specifically, the available information recorded in the first variable is transmitted through the user plane (UP), that is, through the DRB (Data Radio Bearer).

[0314] In Embodiment 5, the second node N52 can optimize the transmission of the first cell common signal / channel (including SSB and / or SIB1 and / or other SIBs besides SIB1) based on the available information stored in the reported first variable. This includes, but is not limited to, optimizing the transmission time and transmission period of the cell common signal / channel, so as to simultaneously meet network energy saving and reduce the delay impact on UE cell selection and access.

[0315] Example 6

[0316] Example 6 illustrates a schematic diagram of the relationship between the first time and the first SSB according to an embodiment of this application, as shown in the attached diagram. Figure 6 As shown.

[0317] As one embodiment, the measurement of the first cell at the first time includes: measuring the channel quality of the first cell at the first time, and receiving at least one of the following two: a first SSB from the first cell.

[0318] As one embodiment, measuring the first cell at the first time includes: measuring the channel quality of the first cell at the first time.

[0319] As a sub-implementation of the above embodiment, the first SSB was not received.

[0320] As one embodiment, measuring the first cell at the first time includes: measuring the channel quality of the first cell at the first time and receiving a first SSB from the first cell.

[0321] As a sub-implementation of the above embodiments, the first SIB1 was not received.

[0322] As a sub-implementation of the above embodiments, the first SIB1 is received.

[0323] As an example, the measured channel quality of the first cell is used to determine whether the first cell meets the cell selection criteria.

[0324] As one embodiment, receiving the first SSB includes: obtaining time and frequency synchronization through the first SSB.

[0325] As one embodiment, receiving the first SSB includes: decoding the PBCH (Physical Broadcast Channel) included in the first SSB to obtain the content of the MIB (Master Information Block).

[0326] Appendix of Example 6 Figure 6The diagram illustrates a time-frequency structure of the first SSB, which occupies 4 OFDM (Orthogonal Frequency Division Multiplexing) symbols in the time domain and 240 subcarriers in the frequency domain. The first SSB includes a PSS (Primary Synchronization Signal), an SSS (Secondary Synchronization Signal), and a PBCH. The PSS and SSS are synchronization signals, and the PBCH carries a MIB, which includes system messages. Measuring the first cell at the first time includes measuring the channel quality of the first cell based on the first SSB and receiving the first SSB from the first cell at the first time.

[0327] As an example, the first time is the duration of four OFDM symbols.

[0328] As an example, the channel quality of the first cell is SS (Synchronization Signal) - RSRP.

[0329] As a sub-example of the above embodiment, the channel quality of the first cell is the linear average of the power contribution on the resource element (RE) carrying the SSS.

[0330] As a sub-implementation of the above embodiments, the channel quality of the first cell may further include a linear average of the power contribution on the resource elements carrying the DMRS (DeModulation Reference Signal), wherein the DMRS is for the PBCH.

[0331] As an example, the channel quality of the first cell is SS (Synchronization Signal)-RSRQ.

[0332] As a sub-example of the above embodiment, the channel quality of the first cell is the ratio of N×SS-RSRP / NR carrierRSSI; wherein, N is the number of resource blocks (RBs) in the NR carrier RSSI measurement bandwidth; the NR carrier RSSI includes a linear average of certain OFDM symbols of the measurement time resource and the total received power in the N resource blocks observed within the measurement bandwidth, including co-channel serving and non-serving cells, adjacent channel interference, and thermal noise.

[0333] Example 7

[0334] Example 7 illustrates a schematic diagram of the relationship between the first SSB and the first SIB1 at a first time according to an embodiment of this application, as shown in the attached diagram. Figure 7 As shown.

[0335] As one embodiment, the first SSB is received, and the first SIB1 is received; wherein, the first SSB indicates the time-frequency resources for receiving the first SIB1.

[0336] Specifically, the first SSB indicates the transmission of a first time-frequency resource of PDCCH (Physical Downlink Control Channel), and receives the PDCCH on the first time-frequency resource. The PDCCH indicates the transmission of a second time-frequency resource of PDSCH (Physical Downlink Shared Channel), and receives the PDSCH on the second time-frequency resource. The PDSCH carries the first SIB1.

[0337] As an example, the first information set depends on the first SSB received at the first time.

[0338] The information recorded in the above embodiments can optimize the transmission of SSBs.

[0339] As an example, the first information set includes the PCI of the first cell; wherein, the first SSB indicates the PCI of the first cell.

[0340] The information recorded in the above embodiments can be used to optimize network coverage.

[0341] As an example, the PSS and the SSS included in the first SSB are used to determine the PCI of the first cell.

[0342] Specifically, the PSS and SSS are generated by the PCI of the first cell, and the PCI of the first cell can be determined by the received PSS and SSS.

[0343] As one embodiment, the first information set includes an index of the first SSB; wherein the first SSB indicates the index of the first SSB.

[0344] As an example, the first information set includes the channel quality measured based on the first SSB, and the channel quality includes at least one of SS-RSRP or SS-RSRQ.

[0345] The information recorded in the two embodiments described above can be used to optimize network beam design.

[0346] As an example, the PBCH included in the first SSB is used to determine the index of the first SSB.

[0347] Specifically, the DMRS of the PBCH is used to indicate the index of the first SSB.

[0348] Specifically, the DMRS of the PBCH and the payload of the PBCH are used together to indicate the index of the first SSB.

[0349] As an example, the first information set includes an index of the second SSB.

[0350] As one embodiment, the first information set includes channel quality measured based on the second SSB, the channel quality including at least one of SS-RSRP or SS-RSRQ.

[0351] As a sub-implementation of the two embodiments described above, the second SSB is the SSB with the best channel quality in the first cell.

[0352] The information recorded in the two embodiments described above can be used to optimize network beam design.

[0353] As one embodiment, the first information set includes the time of receiving the first SSB.

[0354] The information recorded in the above embodiments can indicate the time when the information was collected, which is used to optimize the transmission time of SSB in the network.

[0355] As an example, the time at which the first SSB is received is an absolute time.

[0356] As one embodiment, the time of receiving the first SSB is a relative time; wherein, the first information set includes a reference time.

[0357] As a sub-implementation of the above embodiments, the relative time is the time interval from the reference time.

[0358] As an example, the reference time is the time when the second message is received.

[0359] As an example, the reference time is the time when the first node most recently entered the RRC disconnected state before measuring the first cell.

[0360] As an example, the time at which the first SSB is received is the start time of the symbol occupied by the first SSB.

[0361] As a sub-implementation of the above embodiments, the starting time is a UTC (Coordinated Universal Time) time.

[0362] As an example, the time of receiving the first SSB includes at least two of the following: the frame number, the slot number, and the first OFDM symbol number; wherein the first SSB indicates the frame number, and the index of the first SSB is used to determine the slot number and the first OFDM symbol number.

[0363] As a sub-implementation of the above embodiment, the number of the first OFDM symbol where the first SSB is located can be obtained by looking up a table.

[0364] As one embodiment, the first information set depending on the first time includes: the first information set depending on the received first SIB1, and the reception time of the first SIB1 depending on the first time.

[0365] As a sub-implementation of the above embodiment, the first SSB is received at the first time, and the first SSB indicates the time-frequency resources for receiving the first SIB1.

[0366] As a sub-implementation of the above embodiments, the first information set depends on the configuration information of the SSB indicated by the first SIB1.

[0367] As an example, the first information set includes the configuration information of the SSB indicated by the first SIB1.

[0368] The two embodiments described above record the information carried in the first SIB1, which can simplify the UE reception process.

[0369] The information recorded in the two embodiments above indicates the configuration information of the SSB, which can be used to optimize the transmission of the SSB.

[0370] As an example, the configuration information of the SSB includes the index of the SSB to be sent, and the SSB to be sent includes the first SSB.

[0371] As an example, the configuration information of the SSB includes the time-domain location of the SSB transmitted in an SS-burst (synchronization signal burst).

[0372] As an example, the configuration information of the SSB includes the transmission period of the SS-burst.

[0373] As an example, the configuration information of the SSB includes the transmission period of the first SSB.

[0374] As an example, the first information set includes scheduling information of other SIBs indicated by the first SIB1.

[0375] The information recorded in the above embodiments can be used to optimize the transmission of other SIBs.

[0376] As one embodiment, the first information set includes the time of receiving the first SIB1.

[0377] As one embodiment, the first information set includes the time interval between receiving the first SSB and receiving the first SIB1.

[0378] The information recorded in the above embodiments can be used to optimize the transmission of SIB1.

[0379] As an example, the first information set includes the dwell time in the first cell.

[0380] The information recorded in the above embodiments can be used to optimize the time when the cell is ON.

[0381] As an example, the first information set includes whether the first SIB1 is OD-SIB1.

[0382] Appendix of Example 7 Figure 7The diagram illustrates receiving the first SSB at the first time, the first SSB indicating the time-frequency resources of the PDCCH, the PDCCH being used to schedule the reception of the first SIB1; the first information set depends on the received first SSB and the first SIB1; the first information set can be used to optimize the transmission time and transmission period of SSB and / or SIB1 in the cell to simultaneously meet network energy saving and reduce the delay impact on UE cell selection and access.

[0383] Example 8

[0384] Example 8 illustrates a schematic diagram illustrating the relationship between a first time, a first SSB, a first SIB1, a second time, and broadcast information according to an embodiment of this application, as shown in the attached diagram. Figure 8 As shown.

[0385] As one embodiment, the first information set depends on the transmission period of the broadcast information of the first cell received at a second time, and the second time depends on the first time.

[0386] As a sub-implementation of the above embodiment, the first SSB is received at the first time, and the first SSB indicates the time and period for sending the broadcast information of the first cell, the time including the second time.

[0387] As a sub-implementation of the above embodiments, the broadcast information of the first cell received at the second time is an SSB, or SIB1, or an SIB other than SIB1.

[0388] As an example, the first information set includes the transmission period of the broadcast information of the first cell received at the second time.

[0389] In the two embodiments described above, the transmission period of the broadcast information of the first cell is detected by the first node, which can ensure that the recorded information is the real information measured by the UE.

[0390] Appendix of Example 8 Figure 8The diagram illustrates receiving the first SSB at the first time, where the first SSB indicates the time-frequency resources of the PDCCH, and the PDCCH is used to schedule the reception of the first SIB1. The first SIB1 indicates the transmission time and period of the broadcast information. The first node receives the broadcast information at the second time, and then receives the broadcast information every period after the second time. The broadcast information is either an SSB, SIB1, or an SIB other than SIB1. The first information set depends on the received broadcast information of the first cell. The first information set can be used to optimize the transmission period of broadcast information in the cell to simultaneously meet network energy saving requirements and reduce the delay impact on UE cell selection and UE service initiation.

[0391] Example 9

[0392] Example 9 illustrates a structural schematic diagram of a first variable according to an embodiment of this application, as shown in the attached diagram. Figure 9 As shown.

[0393] As an example, the first variable is used to store the information set collected by the first node, and the number of the stored information sets is not greater than the maximum number of information sets.

[0394] As one embodiment, the first variable includes the first information set.

[0395] In the appendix of Example 9 Figure 9 In this information set, the location information (locationInfo), time information (timeInfo), camping cell identity (campingCellIdentity), camping duration (campingDuration), system information (SystemInfo), and camping cell measurement result (measResultCampingCell) of the first node are included. The location information includes the geographic location at the first time, such as coordinates or Zone ID. The time information includes the first time, or the time when the first SSB was received. The camping cell identity may further include the PLMN identifier to which the first cell belongs, the PCI of the first cell, and the tracking area code to which the first cell belongs. The system information includes the index of the first SSB, the SSB transmission period, and the SIB1 transmission period. The camping cell measurement result includes the measured channel quality of the first cell, or the measured channel quality of the first SSB, or the measured channel quality of the best SSB of the first cell.

[0396] It should be noted that, although not in the appendix of Example 9 Figure 9As shown, however, an information set data structure may include some mandatory fields and some optional fields.

[0397] Example 10

[0398] Example 10 illustrates a structural block diagram of a processing apparatus in a first node according to an embodiment of this application, as shown in the attached diagram. Figure 10 As shown. In the appendix Figure 10 In this configuration, the first node processing device 1000 includes a first receiver 1001 and a first transmitter 1002. The first node 1000 is a UE or a terminal.

[0399] In embodiment 10, a first receiver 1001 measures a first cell at a first time; in response to all conditions in a first set of conditions being met, it collects a first set of information; wherein the first node is in an RRC disconnected state, the first set of information depends on the first time, and the first set of conditions includes the first cell satisfying the cell selection criteria.

[0400] As an example, the first set of conditions includes the first cell not being blocked.

[0401] As one embodiment, the measurement of the first cell at the first time includes: measuring the channel quality of the first cell at the first time, and receiving at least one of the following two: a first SSB from the first cell.

[0402] As one embodiment, the first information set depending on the first time includes: the first information set depending on the received first SIB1, and the reception time of the first SIB1 depending on the first time.

[0403] As one embodiment, the first information set depends on the transmission period of the broadcast information of the first cell received at a second time, and the second time depends on the first time.

[0404] As one embodiment, collecting the first information set includes recording the first information set into a first variable.

[0405] As one embodiment, collecting the first information set includes recording the first information set into a first variable; a first transmitter 1002 sends a first message, the first message indicating that there is available information in the first variable; wherein, the first message is used to confirm the successful completion of the RRC connection, or the first message is UEAssistanceInformation.

[0406] As one embodiment, collecting the first information set includes recording the first information set into a first variable; the first receiver 1001 receives a second message in an RRC connection state, the second message including configuration parameters for collecting the first information set; and in response to receiving the second message, discards the information recorded in the first variable.

[0407] As one embodiment, the first receiver 1001 includes the appendix to this application. Figure 4 The receiver 454 (including antenna 452), receiver processor 456, multi-antenna receiver processor 458, and controller / processor 459 are included.

[0408] As one embodiment, the first receiver 1001 includes the appendix to this application. Figure 4 The receiver 454 (including antenna 452), the receiver processor 456, the multi-antenna receiver processor 458, or the controller / processor 459 are at least one of them.

[0409] As one embodiment, the first transmitter 1002 includes the appendix to this application. Figure 4 The transmitter 454 (including antenna 452), the transmitter processor 468, the multi-antenna transmitter processor 457, and the controller / processor 459 are included.

[0410] As one embodiment, the first transmitter 1002 includes the appendix to this application. Figure 4 The transmitter 454 (including antenna 452), the transmitter processor 468, the multi-antenna transmitter processor 457, or the controller / processor 459 are at least one of them.

[0411] Those skilled in the art will understand that all or part of the steps in the above methods can be implemented by a program instructing related hardware, and the program can be stored in a computer-readable storage medium, such as a read-only memory, hard disk, or optical disk. Optionally, all or part of the steps in the above embodiments can also be implemented using one or more integrated circuits. Correspondingly, each module unit in the above embodiments can be implemented in hardware or in the form of software functional modules. This application is not limited to any specific combination of software and hardware. The first type of communication node or UE or terminal in this application includes, but is not limited to, mobile phones, tablets, laptops, network cards, low-power devices, eMTC (enhanced Machine Type Communication) devices, NB-IoT devices, vehicle communication devices, aircraft, drones, remote-controlled aircraft, and other wireless communication devices. The second type of communication node or base station or network-side equipment in this application includes, but is not limited to, macrocell base stations, microcell base stations, home base stations, relay base stations, eNBs, gNBs, Transmission and Reception Points (TRPs), relay satellites, satellite base stations, airborne base stations, and testing equipment, such as transceivers simulating some functions of a base station, signaling testers, and other wireless communication equipment.

[0412] Those skilled in the art will understand that the present invention can be practiced in other specified forms without departing from its core or essential characteristics. Therefore, the embodiments disclosed herein should be considered descriptive rather than restrictive in any way. The scope of the invention is defined by the appended claims rather than the foregoing description, and all modifications within their equivalent meaning and scope are considered to be included therein.

Claims

1. A first node used for wireless communication, characterized in that, include: The first receiver measures the first cell at the first moment; As a response to the fulfillment of all conditions in the first condition set, a first information set is collected; Wherein, the first node is in an RRC non-connected state, the first information set depends on the first time, and the first condition set includes the first cell satisfying the cell selection criteria.

2. The first node according to claim 1, characterized in that, The first set of conditions includes the first cell not being barred.

3. The first node according to claim 1 or 2, characterized in that, The measurement of the first cell at the first time includes: measuring the channel quality of the first cell at the first time, and receiving at least one of the following two: a first SSB from the first cell.

4. The first node according to any one of claims 1 to 3, characterized in that, The first information set depends on the first time, including: the first information set depends on the received first SIB1, and the reception time of the first SIB1 depends on the first time.

5. The first node according to any one of claims 1 to 4, characterized in that, The first information set depends on the transmission period of the broadcast information of the first cell received at the second time, and the second time depends on the first time.

6. The first node according to any one of claims 1 to 5, characterized in that, The collection of the first information set includes recording the first information set into a first variable.

7. The first node according to claim 6, characterized in that, include: The first transmitter sends a first message, which indicates that there is available information in the first variable; The first message is used to confirm the successful completion of the RRC connection, or the first message is UEAssistanceInformation.

8. The first node according to claim 6 or 7, characterized in that, include: The first receiver receives a second message in RRC connection state, the second message including the configuration parameters for collecting the first information set; In response to receiving the second message, the information recorded in the first variable is discarded.

9. A method used in a first node of wireless communication, characterized in that, include: The first cell was measured immediately. As a response to the fulfillment of all conditions in the first condition set, a first information set is collected; Wherein, the first node is in an RRC non-connected state, the first information set depends on the first time, and the first condition set includes the first cell satisfying the cell selection criteria.

10. The method in the first node according to claim 9, characterized in that, The first set of conditions includes the first cell not being barred.

Images