Random access method and user terminal

Abstract

This invention provides a random access method and a user terminal. The method includes: acquiring configuration information, wherein the configuration information includes random access resource configuration information for at least two beams; acquiring signal quality measurement information for the at least two beams; selecting at least one beam based on the signal quality measurement information for the at least two beams; determining the random access resource for the at least one beam based on the random access resource configuration information for the at least one beam; and initiating random access using the corresponding beam on the determined random access resource. This enables the selection of appropriate random access resources and the use of corresponding beams to initiate random access based on the signal quality measurement results of each beam.

Description

[0001] This invention application is a divisional application of the invention application filed on November 3, 2017, with application number 201711072301.5 and title "Random Access Method and User Terminal". Technical Field

[0002] The embodiments of the present invention relate to the field of communication technology, and in particular to a random access method and a user terminal. Background Technology

[0003] 5G communication systems will introduce various new functions, such as Master Cell Group (MCG) bearer, Secondary Cell Group (SCG) bearer, split bearer, and duplicate bearer, as well as concepts like Bandwidth Part (BWP) and beamforming. In 5G systems, a user terminal can have multiple beams, and during random access, the user terminal may only need to initiate random access using some beams, for example, using only one beam. Therefore, how to select the beam to initiate the random access process is a pressing technical problem that needs to be solved. Summary of the Invention

[0004] This invention provides a random access method and a user terminal to solve the problem of how to select a beam to initiate a random access process.

[0005] To solve the above-mentioned technical problems, the present invention is implemented as follows: a random access method, comprising:

[0006] Obtain configuration information, wherein the configuration information includes random access resource configuration information for at least two beams;

[0007] Obtain signal quality measurement information for at least two beams;

[0008] Based on the signal quality measurement information of the at least two beams, select at least one beam;

[0009] Based on the random access resource configuration information of the at least one beam, determine the random access resource of the at least one beam, and initiate random access using the corresponding beam on the determined random access resource.

[0010] In a first aspect, embodiments of the present invention also provide a random access method, including:

[0011] Obtain configuration information, wherein the configuration information includes random access resource configuration information for at least two beams;

[0012] Obtain signal quality measurement information for at least two beams;

[0013] Based on the signal quality measurement information of the at least two beams, select at least one beam;

[0014] Based on the random access resource configuration information of the at least one beam, determine the random access resource of the at least one beam, and initiate random access using the corresponding beam on the determined random access resource.

[0015] Secondly, embodiments of the present invention provide a user terminal, including:

[0016] The first acquisition module is used to acquire configuration information, wherein the configuration information includes random access resource configuration information for at least two beams;

[0017] The second acquisition module is used to acquire signal quality measurement information of the at least two beams;

[0018] The selection module is used to select at least one beam based on the signal quality measurement information of the at least two beams.

[0019] The random access module is used to determine the random access resources of the at least one beam based on the random access resource configuration information of the at least one beam, and initiate random access using the corresponding beam on the determined random access resources.

[0020] Thirdly, embodiments of the present invention provide a user terminal, including: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps in the random access method provided in embodiments of the present invention.

[0021] Fourthly, embodiments of the present invention provide a computer-readable storage medium storing a computer program, wherein the computer program, when executed by a processor, implements the steps of the random access method provided in the embodiments of the present invention.

[0022] In this embodiment of the invention, configuration information is obtained, including random access resource configuration information for at least two beams; signal quality measurement information for the at least two beams is obtained; at least one beam is selected based on the signal quality measurement information of the at least two beams; random access resources for the at least one beam are determined based on the random access resource configuration information of the at least one beam, and random access is initiated using the corresponding beam on the determined random access resource. This enables the selection of appropriate random access resources and the use of corresponding beams to initiate random access based on the signal quality measurement results of each beam. This allows for the selection of beams with good signal quality to initiate random access, thereby improving the success rate of random access. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a structural diagram of a random access system provided in an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of a random access method provided in an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of another random access method provided in an embodiment of the present invention;

[0027] Figure 4 This is a structural diagram of a user terminal provided in an embodiment of the present invention;

[0028] Figure 5 This is a structural diagram of another user terminal provided in an embodiment of the present invention. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. In the specification and claims, "and / or" indicates at least one of the connected objects.

[0030] See Figure 1 , Figure 1 This is a structural diagram of a random access system provided in an embodiment of the present invention, such as... Figure 1 As shown, the system includes a user terminal 11 and a base station 12. The user terminal 11 can be a UE (User Equipment), such as a mobile phone, tablet computer, laptop computer, personal digital assistant (PDA), mobile internet device (MID), or wearable device. It should be noted that the specific type of user terminal 11 is not limited in this embodiment. The base station 12 can be a 5G or later version base station (e.g., gNB, 5G NRNB), or a base station in other communication systems, also referred to as a node B. It should be noted that this embodiment only uses a 5G base station as an example, but the specific type of base station 12 is not limited.

[0031] It should be noted that the specific functions of the user terminal 11 and base station 12 will be described in detail through the following embodiments.

[0032] Please see Figure 2 , Figure 2 This is a flowchart of a random access method provided by an embodiment of the present invention. The method is used in a user terminal, such as... Figure 2 As shown, it includes the following steps:

[0033] Step 201: Obtain configuration information, wherein the configuration information includes random access resource configuration information for at least two beams.

[0034] Specifically, the aforementioned configuration information obtained from the network side or defined by the protocol can be configured with random access resource configuration information for each beam of the user terminal. The random access resource configuration information for each beam can indicate the random access resources of the corresponding beam, for example, indicating at least one of the time domain, spatial domain, frequency domain, and coding resources of the random access resources of that beam.

[0035] Of course, the above configuration information may also include signal quality threshold configuration, which may include signal quality measurement threshold, as well as measurement result type and corresponding reference signal type. The measurement result type may include Reference Symbol Received Power (RSRP), Reference Signal Received Quality (RSRQ), or Signal to Interference plus Noise Ratio (SINR). The reference signal type may include Synchronization Signal Block (SSB) or Channel State Information Reference Signal (CSI-RS).

[0036] In addition, the configuration information mentioned above can be received at the Radio Resource Control (RRC) layer or the Physical (PHY) layer, and after receiving the configuration information, the RRC layer or the PHY layer can instruct the Media Access Control (MAC) layer.

[0037] Step 202: Obtain signal quality measurement information for the at least two beams.

[0038] This step can involve performing signal quality measurements on each beam to obtain signal quality measurement information for each beam. These measurements can be performed on a reference signal, such as the SSB or CSI-RS, and the resulting measurements can be RSRP, RSRQ, or SINR. Furthermore, the measurement times for each beam can be different, and each measurement result can have a certain time sensitivity.

[0039] Step 203: Select at least one beam based on the signal quality measurement information of the at least two beams.

[0040] The selection here can be based on choosing the beam with the best measurement result for each beam, or choosing the beam whose measurement result is equal to or exceeds the signal quality measurement threshold, etc. Furthermore, in different implementations, one or more beams can be selected.

[0041] Step 204: Based on the random access resource configuration information of the at least one beam, determine the random access resource of the at least one beam, and initiate random access using the corresponding beam on the determined random access resource.

[0042] After selecting at least one of the aforementioned beams, the random access resources for these beams can be determined based on their random access resource configuration information. Then, random access can be initiated using the corresponding beam on the determined random access resource. If multiple beams are selected in step 203, one random access resource can be selected from these multiple beams' random access resources, and the corresponding beam can be used to initiate random access. If only one beam is selected in step 203, random access can be initiated directly using that beam on its random access resource.

[0043] The initiated random access can be either contention-based or non-contention-based.

[0044] In this embodiment, the above steps can be used to selectively initiate random access, and the best or best beam with better signal quality can be selected to initiate random access, thereby improving the success rate of random access.

[0045] It should be noted that the methods provided in the embodiments of the present invention can be applied to 5G systems, but are not limited thereto. As long as they can achieve the same basic functions, they are applicable to other communication systems, such as, but not limited to, 6G systems.

[0046] In this embodiment of the invention, configuration information is obtained, including random access resource configuration information for at least two beams; signal quality measurement information for the at least two beams is obtained; at least one beam is selected based on the signal quality measurement information for the at least two beams; random access resources for the at least one beam are determined based on the random access resource configuration information for the at least one beam, and random access is initiated using the corresponding beam on the determined random access resource. This enables the selection of appropriate random access resources and the use of corresponding beams to initiate random access based on the signal quality measurement results of each beam, and allows the selection of beams with good signal quality to improve the success rate of random access.

[0047] Please see Figure 3 , Figure 3 This is a flowchart of another random access method provided in an embodiment of the present invention. This method is applied to a user terminal, such as... Figure 3 As shown, it includes the following steps:

[0048] Step 301: Obtain configuration information, wherein the configuration information includes random access resource configuration information for at least two beams.

[0049] The random access resource configuration information for each beam may include one or more of the following:

[0050] Time resource allocation information, frequency resource allocation information, coding resource allocation information, and spatial resource allocation information.

[0051] The above information allows for the accurate determination of random access resources for each beam.

[0052] It should be noted that if any of the above four configuration information is not received in step 301, this configuration information can be determined through pre-configuration or protocol definition.

[0053] In addition, the time resource configuration information may include one or more of the following:

[0054] Wireless frame configuration, subframe configuration, and slot configuration.

[0055] The aforementioned radio frame configuration can be the System Frame Number (SFN). This time resource configuration information allows for the accurate determination of the random access resource time for each beam.

[0056] The frequency resource configuration information mentioned above may include one or more of the following:

[0057] Frequency point identifier, minimum bandwidth agreed upon in the protocol, Bandwidth Part (BWP) identifier, Physical Resource Block (PRB) identifier, cell identifier, and subcarrier spacing.

[0058] The minimum bandwidth agreed upon in the above protocol can be a predefined minimum bandwidth in the protocol, such as 5MHz. In this case, the BWP identifier can be the identifier of the default BWP or the identifier of the currently active BWP.

[0059] This frequency resource configuration information allows for the accurate determination of the frequency configuration of random access resources for each beam.

[0060] The above-mentioned encoding resource configuration information includes a random access preamble. Of course, it may also include other encoding resource configurations, which are not limited in this embodiment of the invention.

[0061] The aforementioned spatial resource allocation information may include one or more of the following:

[0062] Beam identification information, beam pair identification information, and transmission node identification.

[0063] The beam identification information mentioned above can be understood as the ability to directly or indirectly identify the beam. The identification information for beam pairs is similar and will not be elaborated further. For example, the beam identification information includes one or more of the following:

[0064] Beam ID, SSB ID, and CSI-RS ID.

[0065] In this embodiment, one beam can correspond to one SSB or CSI-RS, thus the beam can also be indirectly identified through the SSB identifier or CSI-RS identifier. Of course, the above beam pairs can also be identified in this indirect or direct way.

[0066] Step 302: Obtain signal quality measurement information for the at least two beams.

[0067] This step can involve measuring the signal quality of the beam at the RRC layer or PHY layer, specifically by measuring the signal quality of the reference signal corresponding to each beam.

[0068] Step 303: Select at least one beam based on the signal quality measurement information of the at least two beams.

[0069] In this step, selecting at least one beam can be done at the MAC layer or at the RRC / PHY layer. For example, selecting at least one beam based on the signal quality measurement results of the at least two beams includes:

[0070] The Media Access Control (MAC) layer selects at least one beam based on the signal quality measurement results of at least two beams provided by the Radio Resource Control (RRC) layer or the Physical PHY layer; or

[0071] The MAC layer instructs the RRC layer or the PHY layer to provide signal quality measurement results information for the at least two beams, and selects at least one beam based on the signal quality measurement results information for the at least two beams.

[0072] In this implementation, the measured signal quality results can be sent to the MAC layer at the RRC or PHY layer, and at the MAC layer, at least one of the aforementioned beams can be selected. The signal quality measurement results can be provided proactively by the RRC or PHY layer, or provided according to instructions from the MAC layer. For example, the RRC or PHY layer provides the signal quality measurement results to the MAC layer before performing random access resource selection; or...

[0073] The RRC layer or PHY layer periodically provides the signal quality measurement result information to the MAC layer; or

[0074] The RRC layer or PHY layer provides the signal quality measurement result information to the MAC layer according to the request indicated by the MAC.

[0075] In this implementation, the RRC layer or PHY layer can provide the signal quality measurement result information to the MAC layer before performing random access resource selection, thus ensuring that at least one of the above-mentioned beams can be selected quickly and efficiently.

[0076] Additionally, the RRC layer or PHY layer can periodically provide the signal quality measurement results to the MAC layer, thereby periodically updating the signal quality measurement results and making the selected beam more accurate. The aforementioned period can be agreed upon by the protocol or configured on the network side.

[0077] Furthermore, the RRC layer or PHY layer can provide the signal quality measurement result information to the MAC layer according to the request indicated by the MAC, so that the MAC can obtain the signal quality measurement result information in a timely manner when it needs it, thereby improving the timeliness of beam selection.

[0078] Optionally, if the signal quality measurement result information is provided by the RRC layer or the PHY layer, the RRC layer may decide to provide the signal quality measurement result information to the MAC layer. If the signal quality measurement result information is provided by the PHY layer, the PHY layer provides the signal quality measurement result information to the MAC layer, or the PHY layer provides the signal quality measurement result information to the MAC layer according to the instruction of the RRC layer. The provision of the signal quality measurement result information from the PHY layer to the MAC layer may be decided by the PHY layer itself.

[0079] For example, if the RRC layer instructs the PHY layer to provide signal quality measurement results before selecting random access resources, then the PHY layer will provide signal quality measurement results to the MAC layer before selecting random access resources. Alternatively, if the RRC layer instructs the PHY layer to provide signal quality measurement results periodically, then the PHY layer will periodically provide signal quality measurement results to the MAC layer.

[0080] Since the PHY layer can provide signal quality measurement results to the MAC layer according to the instructions of the RRC layer, the PHY layer entity is simplified.

[0081] In another embodiment, selecting at least one beam based on the signal quality measurement results of the at least two beams includes:

[0082] The RRC layer or PHY layer selects at least one beam based on the signal quality measurement results of the at least two beams and instructs the MAC layer accordingly.

[0083] In this implementation, at least one of the aforementioned beams can be selected at the RRC layer or the PHY layer, which can reduce the interaction between protocol layers and simplify the process of initiating a random access procedure.

[0084] As an optional implementation, if the acquired configuration information includes a signal quality measurement threshold, then the measurement result of the selected at least one beam is equal to or exceeds the signal quality measurement threshold and satisfies a preset measurement condition. Specifically, this can be achieved by selecting at least one beam from the at least two beams whose measurement result is equal to or exceeds the signal quality measurement threshold and satisfies the preset measurement condition; or

[0085] If the acquired configuration information does not include a signal quality measurement threshold, then the at least one beam satisfies the preset measurement conditions. Specifically, at least one beam that satisfies the preset measurement conditions can be selected from the at least two beams.

[0086] In this embodiment, at least one beam can be selected based on the preset measurement conditions and the signal quality measurement threshold, thereby ensuring that the signal measurement signal of the selected beam is good or the best, thus improving the success rate of random access.

[0087] Of course, in some implementations, at least one beam can be selected based solely on the aforementioned signal quality measurement threshold, without considering the aforementioned preset measurement conditions. This allows for the selection of the beam with better or best signal quality, thereby improving the success rate of random access.

[0088] The aforementioned preset measurement conditions can be pre-configured, specifically, they can be pre-defined in the protocol or pre-configured on the network side. The preset measurement conditions may include one or more of the following:

[0089] The corresponding reference signal was detected, the measurement result was a valid measurement result, and the system was in downlink synchronization state.

[0090] Each beam corresponds to a reference signal.

[0091] Since each beam corresponds to a reference signal, such as SSB or CSI-RS, the selected beam can be detected by using the above-mentioned preset measurement conditions. This ensures that the reference signal corresponding to the selected beam is detectable, thus increasing the success rate of initiating a random access procedure using that beam.

[0092] In addition, in this embodiment, the measurement results are time-sensitive, meaning they are valid only within a certain time period. This is because the user terminal can perform multiple measurements, and the measurement result of each measurement is only valid for a specific time. For example, the measurement result of the nth measurement is valid before the (n+1)th measurement, or it is valid for a specific time after the (n+1)th measurement.

[0093] By using the aforementioned preset measurement conditions, it can be ensured that the measurement results of the selected beam are valid, thereby enabling a more accurate selection of a suitable beam.

[0094] In addition, the aforementioned downlink synchronization state can mean that the beam and the network side are downlink synchronized, thus ensuring that the selected beam is downlink synchronized, thereby improving the success rate of random access.

[0095] It should be noted that since the above preset conditions can include one or more of the above three items, the selected beam can satisfy multiple of the above conditions. For example, the selected beam is one whose corresponding reference signal is detected and is in downlink synchronization state. This can further improve the success rate of random access.

[0096] Optionally, the acquired configuration information may further include at least one of the measurement result type and the reference signal type corresponding to the measurement result, in which case the measurement result includes:

[0097] The measurement result type of the measurement result; or

[0098] The measurement result of the reference signal type; or

[0099] The measurement results of the reference signal type are the measurement results of the measurement result type.

[0100] In this context, the measurement result of the aforementioned reference signal type can be understood as either the measurement result of the aforementioned reference signal type or the measurement result of the aforementioned measurement result type. For example, if the aforementioned reference signal type includes SSB and the aforementioned measurement result type is RSRP, then the measurement result is the RSRP of SSB.

[0101] In this embodiment, the measurement result compared with the above-mentioned signal quality measurement threshold can be the measurement result of a specific type and a specific reference signal, which can improve the accuracy of beam selection.

[0102] Additionally, it should be noted that the types of measurement results and signal quality thresholds mentioned above can be agreed upon according to the protocol or network configuration, and both must be the same. For example, if the type of the signal quality threshold is RSRQ, then the type of measurement result used for comparison will also be RSRQ. Furthermore, the reference signal type corresponding to the measurement results and the reference signal type corresponding to the signal quality thresholds mentioned above can be agreed upon according to the protocol or network configuration, and both can be the same. For example, if the type of the signal quality threshold is SSB, then the type of measurement result used for comparison will also be SSB.

[0103] In this embodiment, in addition to improving the success rate of random access by acquiring different types of measurement results, measurement results at specific times can also be acquired to improve the accuracy of the measurement results. For example, the measurement results include:

[0104] The latest valid measurement results, the measurement results when reporting measurement reports to the network side, the measurement results when triggering random access, the measurement results when performing random access resource selection, or the measurement results when performing downlink synchronization.

[0105] The latest valid measurement result mentioned above can be the measurement result with the latest valid time, specifically the valid measurement result closest to the time of initiating random access. This can ensure that the measurement result of beam selection is up-to-date, thereby improving the accuracy of beam selection.

[0106] In addition, the measurement results reported to the network side can be guaranteed to be the same as the measurement results of the selected beam, thus ensuring the synchronization of measurement results between the network side and the user terminal.

[0107] In the non-contention-based random access process, triggering random access can be achieved when the user terminal's PHY layer receives a Physical Downlink Control Channel (PDCCH) indication (Msg0) sent by the network side, triggering the random access process. Random access resource selection can be achieved when the user terminal's PHY layer notifies the MAC layer to initiate a random access process, and the user terminal selects random access resources according to the random access resources indicated by Msg0.

[0108] In the process of contention for random access, triggering random access can be achieved by a protocol layer (such as the RRC layer) of the user terminal instructing the MAC layer to trigger the random access process. Random access resource selection can be achieved by the MAC layer selecting random access resources after triggering the random access process.

[0109] By using the measurement results obtained during random access triggering, random access resource selection, or downlink synchronization, the timeliness of the measurement results can be guaranteed, thereby improving the accuracy of beam selection.

[0110] Optionally, if at least one beam is selected in the MAC layer, the signal quality measurement threshold is provided to the MAC layer by the RRC layer or the PHY layer.

[0111] In this embodiment, the PHY layer can provide the MAC layer with signal quality measurement result information and signal quality measurement threshold configuration together. The signal quality measurement result information includes the measurement result, and may also include at least one of the following: measurement result type and corresponding reference signal type. The signal quality measurement threshold configuration may include the signal quality measurement threshold value, and may also include the measurement result type corresponding to the signal quality measurement threshold value, and the corresponding reference signal type.

[0112] Step 304: The MAC layer determines the random access resources of the at least one beam based on the random access resource configuration information of the at least one beam, and initiates random access using the corresponding beam on the determined random access resources.

[0113] It should be noted that in this embodiment, the random access resource for initiating random access is not limited to the MAC layer; it can also be determined and initiated by other protocol layers. This embodiment of the invention does not limit this.

[0114] As an optional implementation, the random access resource configuration information for each beam includes time resource configuration information; the determined random access resource includes the random access resource with the most recent time. For example, initiating random access using the corresponding beam on the determined random access resource includes: selecting the random access resource with the most recent time from the random access resources of the at least one beam, and initiating random access using the corresponding beam on the selected random access resource.

[0115] The term "most recent in time" can be understood as the random access resource with the closest time to the current time among the random access resources of at least one beam selected, or as the random access resource with the closest time to the time when the random access resource was determined among the random access resources of at least one beam. Of course, the random access resource with the closest time is an available random access resource.

[0116] Since each random access resource has time resource configuration information, the time of each random access resource can be determined. Therefore, when selecting multiple beams in step 303, a random access resource with the closest time and availability can be selected to initiate random access, thereby improving access efficiency.

[0117] As an optional implementation, if the random access resource for initiating random access is selected by the MAC layer, and the random access resource configuration information of the at least one beam is provided to the MAC layer by the RRC layer or the PHY layer.

[0118] For example, after receiving the configuration information in step 301, the RRC layer or PHY layer may perform random access resource selection at the MAC layer and provide the MAC layer with random access resource configuration information for at least one beam. Alternatively, in the implementation where the MAC layer selects at least one beam, the RRC layer or PHY layer may provide the MAC layer with random access resource configuration information for all beams. In the implementation where the RRC layer or PHY layer selects at least one beam, the RRC layer or PHY layer may perform the selection before the MAC layer performs random access resource selection and provide the MAC layer with the random access resource configuration information for this at least one beam; of course, providing random access resource configuration information for all beams is also possible in this case.

[0119] Optionally, the RRC layer or PHY layer provides the MAC layer with random access resource configuration information for the at least one beam; or

[0120] The RRC layer or PHY layer provides the MAC layer with random access resource configuration information for the at least one beam according to the instruction of the MAC.

[0121] The aforementioned provision may be that the RRC layer or PHY layer provides the MAC layer with the random access resource configuration information of the at least one beam before performing random access resource selection; or the RRC layer or PHY layer may periodically provide the MAC layer with the random access resource configuration information of the at least one beam.

[0122] The implementation method for providing random access resource configuration information can refer to the implementation method for providing signal quality measurement result information described above, and will not be repeated here, and can achieve the same beneficial effects. For example, the PHY layer can provide the MAC layer with the random access resource configuration information of the at least one beam, or the PHY layer can provide the MAC layer with the random access resource configuration information of the at least one beam according to the instruction of the RRC layer.

[0123] In this embodiment, Figure 2The illustrated embodiment has been improved with the addition of several optional implementation methods, which can further improve the success rate of random access.

[0124] Please see Figure 4 , Figure 4 This is a structural diagram of a user terminal provided in an embodiment of the present invention, such as... Figure 4 As shown, the user terminal 400 includes:

[0125] The first acquisition module 401 is used to acquire configuration information, wherein the configuration information includes random access resource configuration information for at least two beams;

[0126] The second acquisition module 402 is used to acquire signal quality measurement information of the at least two beams;

[0127] Selection module 403 is used to select at least one beam based on the signal quality measurement information of the at least two beams;

[0128] The random access module 404 is used to determine the random access resources of the at least one beam according to the random access resource configuration information of the at least one beam, and initiate random access using the corresponding beam on the determined random access resources.

[0129] Those skilled in the art will understand that the above module can be implemented as software, or hardware, or a combination of hardware and software.

[0130] Optionally, the random access resource configuration information for each beam includes time resource configuration information; the determined random access resources include the most recent random access resource in time.

[0131] Optionally, the selection module 403 is used by the MAC layer to select at least one beam based on the signal quality measurement results of the at least two beams provided by the Radio Resource Control (RRC) layer or the Physical PHY layer; or

[0132] The selection module 403 is used by the MAC layer to instruct the RRC layer or the PHY layer to provide signal quality measurement result information for the at least two beams, and to select at least one beam based on the signal quality measurement result information for the at least two beams; or

[0133] The selection module 403 is used by the RRC layer or PHY layer to select at least one beam based on the signal quality measurement results of the at least two beams, and to indicate this to the MAC layer.

[0134] Optionally, the PHY layer provides the signal quality measurement result information to the MAC layer, or the PHY layer provides the signal quality measurement result information to the MAC layer according to the instruction of the RRC layer.

[0135] Optionally, if the acquired configuration information includes a signal quality measurement threshold, then the measurement result of the at least one beam is equal to or exceeds the signal quality measurement threshold, and satisfies the preset measurement conditions; or

[0136] If the acquired configuration information does not include a signal quality measurement threshold, then the at least one beam satisfies the preset measurement conditions.

[0137] Optionally, the acquired configuration information may also include at least one of the measurement result type and the reference signal type corresponding to the measurement result;

[0138] The measurement results include:

[0139] The measurement result type of the measurement result; or

[0140] The measurement result of the reference signal type; or

[0141] The measurement results of the reference signal type are the measurement results of the measurement result type.

[0142] Optionally, if at least one beam is selected in the MAC layer, the signal quality measurement threshold is provided to the MAC layer by the RRC layer or the PHY layer.

[0143] Optionally, the preset measurement conditions include one or more of the following:

[0144] The corresponding reference signal was detected, the measurement result was a valid measurement result, and the system was in downlink synchronization state.

[0145] Each beam corresponds to a reference signal.

[0146] Optionally, the measurement results include:

[0147] The latest valid measurement results, the measurement results when reporting measurement reports to the network side, the measurement results when triggering random access, the measurement results when performing random access resource selection, or the measurement results when performing downlink synchronization.

[0148] Optionally, the random access resource configuration information for each beam includes one or more of the following:

[0149] Time resource allocation information, frequency resource allocation information, coding resource allocation information, and spatial resource allocation information.

[0150] Optionally, the time resource configuration information includes one or more of the following:

[0151] Wireless frame configuration, subframe configuration, and slot configuration;

[0152] The frequency resource configuration information includes one or more of the following:

[0153] Frequency point identifier, minimum bandwidth agreed upon in the protocol, BWP identifier, physical resource block (PRB) identifier, cell identifier, and subcarrier spacing;

[0154] The encoding resource configuration information includes a random access preamble.

[0155] The spatial resource allocation information includes one or more of the following:

[0156] Beam identification information, beam pair identification information, and transmission node identification.

[0157] Optionally, the beam identification information includes one or more of the following:

[0158] Beam ID, SSB identifier, and CSI-RS identifier.

[0159] Optionally, the random access resource for initiating random access is selected by the MAC layer, and the random access resource configuration information of the at least one beam is provided to the MAC layer by the RRC layer or the PHY layer.

[0160] Optionally, the RRC layer or PHY layer provides the MAC layer with random access resource configuration information for the at least one beam; or

[0161] The RRC layer or PHY layer provides the MAC layer with random access resource configuration information for the at least one beam according to the instruction of the MAC.

[0162] Optionally, the PHY layer provides the MAC layer with random access resource configuration information for the at least one beam, or the PHY layer provides the MAC layer with random access resource configuration information for the at least one beam according to the instruction of the RRC layer.

[0163] Optionally, the first acquisition module is used to acquire configuration information configured on the network side or defined by the protocol.

[0164] The user terminal provided in this embodiment of the invention can achieve Figures 2 to 3 The various processes implemented by the user terminal in the method embodiment will not be described again here to avoid repetition, and will improve the success rate of random access.

[0165] Figure 5 This is a schematic diagram of the hardware structure of a user terminal to realize various embodiments of the present invention.

[0166] The user terminal 500 includes, but is not limited to, components such as: a radio frequency unit 501, a network module 502, an audio output unit 503, an input unit 504, a sensor 505, a display unit 506, a user input unit 507, an interface unit 508, a memory 509, a processor 510, and a power supply 511. Those skilled in the art will understand that... Figure 5 The user terminal structure shown does not constitute a limitation on the user terminal. A user terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements. In embodiments of the present invention, the user terminal includes, but is not limited to, mobile phones, tablet computers, laptops, PDAs, in-vehicle user terminals, wearable devices, and pedometers.

[0167] Processor 510 is used to acquire configuration information, wherein the configuration information includes random access resource configuration information for at least two beams;

[0168] Obtain signal quality measurement information for at least two beams;

[0169] Based on the signal quality measurement information of the at least two beams, select at least one beam;

[0170] Based on the random access resource configuration information of the at least one beam, determine the random access resource of the at least one beam, and initiate random access using the corresponding beam on the determined random access resource.

[0171] Optionally, the random access resource configuration information for each beam includes time resource configuration information; the determined random access resources include the most recent random access resource in time.

[0172] Optionally, the processor 510 performs the function of selecting at least one beam based on the signal quality measurement results of the at least two beams, including:

[0173] The MAC layer selects at least one beam based on the signal quality measurement results of at least two beams provided by the Radio Resource Control (RRC) layer or the Physical PHY layer; or

[0174] The MAC layer instructs the RRC layer or PHY layer to provide signal quality measurement results information for the at least two beams, and selects at least one beam based on the signal quality measurement results information for the at least two beams; or

[0175] The RRC layer or PHY layer selects at least one beam based on the signal quality measurement results of the at least two beams and instructs the MAC layer accordingly.

[0176] Optionally, the PHY layer provides the signal quality measurement result information to the MAC layer, or the PHY layer provides the signal quality measurement result information to the MAC layer according to the instruction of the RRC layer.

[0177] Optionally, if the acquired configuration information includes a signal quality measurement threshold, then the measurement result of the at least one beam is equal to or exceeds the signal quality measurement threshold, and satisfies the preset measurement conditions; or

[0178] If the acquired configuration information does not include a signal quality measurement threshold, then the at least one beam satisfies the preset measurement conditions.

[0179] Optionally, the acquired configuration information may also include at least one of the measurement result type and the reference signal type corresponding to the measurement result;

[0180] The measurement results include:

[0181] The measurement result type of the measurement result; or

[0182] The measurement result of the reference signal type; or

[0183] The measurement results of the reference signal type are the measurement results of the measurement result type.

[0184] Optionally, if at least one beam is selected in the MAC layer, the signal quality measurement threshold is provided to the MAC layer by the RRC layer or the PHY layer.

[0185] Optionally, the preset measurement conditions include one or more of the following:

[0186] The corresponding reference signal was detected, the measurement result was a valid measurement result, and the system was in downlink synchronization state.

[0187] Each beam corresponds to a reference signal.

[0188] Optionally, the measurement results include:

[0189] The latest valid measurement results, the measurement results when reporting measurement reports to the network side, the measurement results when triggering random access, the measurement results when performing random access resource selection, or the measurement results when performing downlink synchronization.

[0190] Optionally, the random access resource configuration information for each beam includes one or more of the following:

[0191] Time resource allocation information, frequency resource allocation information, coding resource allocation information, and spatial resource allocation information.

[0192] Optionally, the time resource configuration information includes one or more of the following:

[0193] Wireless frame configuration, subframe configuration, and slot configuration;

[0194] The frequency resource configuration information includes one or more of the following:

[0195] Frequency point identifier, minimum bandwidth agreed upon in the protocol, BWP identifier, PRB identifier, cell identifier, and subcarrier spacing;

[0196] The encoding resource configuration information includes a random access preamble;

[0197] The spatial resource allocation information includes one or more of the following:

[0198] Beam identification information, beam pair identification information, and transmission node identification.

[0199] Optionally, the beam identification information includes one or more of the following:

[0200] Beam ID, SSB identifier, and CSI-RS identifier.

[0201] Optionally, the random access resource for initiating random access is selected by the MAC layer, and the random access resource configuration information of the at least one beam is provided to the MAC layer by the RRC layer or the PHY layer.

[0202] Optionally, the RRC layer or PHY layer provides the MAC layer with random access resource configuration information for the at least one beam; or

[0203] The RRC layer or PHY layer provides the MAC layer with random access resource configuration information for the at least one beam according to the instruction of the MAC.

[0204] Optionally, the PHY layer provides the MAC layer with random access resource configuration information for the at least one beam, or the PHY layer provides the MAC layer with random access resource configuration information for the at least one beam according to the instruction of the RRC layer.

[0205] Optionally, the processor 510 obtains configuration information, including:

[0206] Obtain configuration information from the network side or the protocol definition.

[0207] The aforementioned user terminals can improve the success rate of random access.

[0208] It should be understood that, in this embodiment of the invention, the radio frequency unit 501 can be used for receiving and transmitting signals during information transmission or calls. Specifically, it receives downlink data from the base station and processes it with the processor 510; additionally, it transmits uplink data to the base station. Typically, the radio frequency unit 501 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, etc. Furthermore, the radio frequency unit 501 can also communicate with networks and other devices through a wireless communication system.

[0209] The user terminal provides wireless broadband internet access to the user through network module 502, such as helping the user send and receive emails, browse web pages, and access streaming media.

[0210] The audio output unit 503 can convert audio data received by the radio frequency unit 501 or the network module 502 or stored in the memory 509 into audio signals and output them as sound. Furthermore, the audio output unit 503 can also provide audio output related to specific functions performed by the user terminal 500 (e.g., call signal reception sound, message reception sound, etc.). The audio output unit 503 includes a speaker, a buzzer, and a receiver, etc.

[0211] Input unit 504 is used to receive audio or video signals. Input unit 504 may include a graphics processing unit (GPU) 5041 and a microphone 5042. The GPU 5041 processes image data of still images or videos acquired by an image capture device (such as a camera) in video capture mode or image capture mode. The processed image frames can be displayed on display unit 506. The image frames processed by GPU 5041 can be stored in memory 509 (or other storage medium) or transmitted via radio frequency unit 501 or network module 502. Microphone 5042 can receive sound and process such sound into audio data. The processed audio data can be converted into a format that can be transmitted to a mobile communication base station via radio frequency unit 501 in telephone call mode.

[0212] User terminal 500 also includes at least one sensor 505, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor and a proximity sensor. The ambient light sensor can adjust the brightness of the display panel 5061 according to the ambient light level, and the proximity sensor can turn off the display panel 5061 and / or backlight when the user terminal 500 is moved to the ear. As a type of motion sensor, an accelerometer sensor can detect the magnitude of acceleration in various directions (generally three axes). When stationary, it can detect the magnitude and direction of gravity and can be used to identify the user terminal's posture (such as landscape / portrait switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, tapping), etc. Sensor 505 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which will not be described in detail here.

[0213] The display unit 506 is used to display information input by the user or information provided to the user. The display unit 506 may include a display panel 5061, which may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.

[0214] User input unit 507 can be used to receive input numerical or character information, and generate key signal inputs related to user settings and function control of the user terminal. Specifically, user input unit 507 includes a touch panel 5071 and other input devices 5072. Touch panel 5071, also known as a touch screen, can collect touch operations performed by the user on or near it (such as operations performed by the user using a finger, stylus, or any suitable object or accessory on or near touch panel 5071). Touch panel 5071 may include two parts: a touch detection device and a touch controller. The touch detection device detects the user's touch position and the signal generated by the touch operation, and transmits the signal to the touch controller; the touch controller receives touch information from the touch detection device, converts it into touch point coordinates, and sends it to the processor 510, which receives and executes commands from the processor 510. In addition, touch panel 5071 can be implemented using various types such as resistive, capacitive, infrared, and surface acoustic wave. Besides touch panel 5071, user input unit 507 may also include other input devices 5072. Specifically, other input devices 5072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, power buttons, etc.), trackballs, mice, joysticks, etc., which will not be described in detail here.

[0215] Furthermore, the touch panel 5071 can cover the display panel 5061. When the touch panel 5071 detects a touch operation on or near it, it transmits the information to the processor 510 to determine the type of touch event. Subsequently, the processor 510 provides corresponding visual output on the display panel 5061 based on the type of touch event. Although in Figure 5 In this embodiment, the touch panel 5071 and the display panel 5061 are two independent components to realize the input and output functions of the user terminal. However, in some embodiments, the touch panel 5071 and the display panel 5061 can be integrated to realize the input and output functions of the user terminal. The specific implementation is not limited here.

[0216] Interface unit 508 serves as an interface for connecting external devices to user terminal 500. For example, external devices may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, an audio input / output (I / O) port, a video I / O port, a headphone port, and so on. Interface unit 508 can be used to receive input from external devices (e.g., data, power, etc.) and transmit the received input to one or more elements within user terminal 500, or it can be used to transmit data between user terminal 500 and external devices.

[0217] The memory 509 can be used to store software programs and various data. The memory 509 may primarily include a program storage area and a data storage area. The program storage area may store the operating system, applications required for at least one function (such as sound playback, image playback, etc.), etc.; the data storage area may store data created based on the use of the mobile phone (such as audio data, phonebook, etc.). Furthermore, the memory 509 may include high-speed random access memory, and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other volatile solid-state storage device.

[0218] The processor 510 is the control center of the user terminal. It connects various parts of the user terminal via various interfaces and lines. By running or executing software programs and / or modules stored in the memory 509, and by calling data stored in the memory 509, it performs various functions and processes data of the user terminal, thereby providing overall monitoring of the user terminal. The processor 510 may include one or more processing units; preferably, the processor 510 may integrate an application processor and a modem processor. The application processor mainly handles the operating system, user interface, and applications, while the modem processor mainly handles wireless communication. It is understood that the modem processor may not be integrated into the processor 510.

[0219] User terminal 500 may also include a power supply 511 (such as a battery) for supplying power to various components. Preferably, the power supply 511 can be logically connected to the processor 510 through a power management system, thereby enabling functions such as charging, discharging, and power consumption management through the power management system.

[0220] In addition, the user terminal 500 includes some functional modules not shown, which will not be described in detail here.

[0221] Preferably, this embodiment of the invention also provides a user terminal, including a processor 510, a memory 509, and a computer program stored in the memory 509 and executable on the processor 510. When the computer program is executed by the processor 510, it implements the various processes of the above-described random access method embodiment and achieves the same technical effect. To avoid repetition, it will not be described again here.

[0222] This invention also provides a computer-readable storage medium storing a computer program. When executed by a processor, this computer program implements various processes of the random access method embodiment and achieves the same technical effect. To avoid repetition, these processes will not be described again here. The computer-readable storage medium may be a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0223] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0224] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of the present invention.

[0225] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of the present invention.

Claims

1. A random access method, characterized in that, include: Obtain configuration information, wherein the configuration information includes random access resource configuration information for at least two beams; Obtain the signal quality measurement results of the at least two beams; Based on the signal quality measurement results of the at least two beams, at least one beam is selected; and Based on the random access resource configuration information of the at least one beam, determine the random access resource of the at least one beam, and initiate random access using the corresponding beam on the determined random access resource; When the acquired configuration information includes a signal quality measurement threshold, selecting at least one beam based on the signal quality measurement results of the at least two beams includes: Based on the signal quality measurement results of the at least two beams, select at least one beam whose latest valid measurement result is equal to or exceeds the signal quality measurement threshold. The step of selecting at least one beam based on the signal quality measurement results of the at least two beams further includes: The Media Access Control (MAC) layer selects at least one beam based on the signal quality measurement results of at least two beams provided by the Radio Resource Control (RRC) layer or the Physical PHY layer; or The MAC layer instructs the RRC layer or the PHY layer to provide signal quality measurement results information for the at least two beams, and selects at least one beam based on the signal quality measurement results information for the at least two beams.

2. The method as described in claim 1, characterized in that, The random access resource configuration information for each beam includes time resource configuration information; The determined random access resources include the most recent random access resources.

3. The method as described in claim 1, characterized in that, The PHY layer provides the signal quality measurement result information to the MAC layer, or the PHY layer provides the signal quality measurement result information to the MAC layer according to the instructions of the RRC layer.

4. The method according to any one of claims 1 to 3, characterized in that, The acquired configuration information also includes at least one of the measurement result type and the reference signal type corresponding to the measurement result; The measurement results include: The measurement result type of the measurement result; or The measurement result of the reference signal type; or The measurement results of the reference signal type are the measurement results of the measurement result type.

5. The method as described in claim 1, characterized in that, If at least one beam is selected at the MAC layer, the signal quality measurement threshold is provided to the MAC layer by the RRC layer or the PHY layer.

6. The method as described in claim 1, characterized in that, The measurement results also include: The measurement results are measured when reporting measurement reports to the network side, when triggering random access, when performing random access resource selection, or when performing downlink synchronization.

7. The method according to any one of claims 1 to 3, characterized in that, The random access resource for initiating random access is selected by the MAC layer, and the random access resource configuration information of the at least one beam is provided to the MAC layer by the RRC layer or the PHY layer.

8. The method as described in claim 7, characterized in that, The RRC layer or PHY layer provides the MAC layer with random access resource configuration information for the at least one beam; or The RRC layer or PHY layer provides the MAC layer with random access resource configuration information for the at least one beam according to the instruction of the MAC.

9. A user terminal, characterized in that, include: The first acquisition module is used to acquire configuration information, wherein the configuration information includes random access resource configuration information for at least two beams; The second acquisition module is used to acquire signal quality measurement result information of the at least two beams; The selection module is used to select at least one beam based on the signal quality measurement results of the at least two beams. The random access module is used to determine the random access resources of the at least one beam based on the random access resource configuration information of the at least one beam, and initiate random access using the corresponding beam on the determined random access resources; When the acquired configuration information includes a signal quality measurement threshold, the selection module is configured to: Based on the signal quality measurement results of the at least two beams, select at least one beam whose latest valid measurement result is equal to or exceeds the signal quality measurement threshold. The selection module is also used for: The MAC layer selects at least one beam based on the signal quality measurement results of at least two beams provided by the Radio Resource Control (RRC) layer or the Physical PHY layer; or The MAC layer instructs the RRC layer or the PHY layer to provide signal quality measurement results information for the at least two beams, and selects at least one beam based on the signal quality measurement results information for the at least two beams.

10. The user terminal as described in claim 9, characterized in that, The random access resource configuration information for each beam includes time resource configuration information; The determined random access resources include the most recent random access resources.

11. The user terminal as described in any one of claims 9 to 10, characterized in that, The acquired configuration information also includes at least one of the measurement result type and the reference signal type corresponding to the measurement result; The measurement results include: The measurement result type of the measurement result; or The measurement result of the reference signal type; or The measurement results of the reference signal type are the measurement results of the measurement result type.

12. A user terminal, characterized in that, include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps of the random access method as described in any one of claims 1 to 8.

13. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the steps of the random access method as described in any one of claims 1 to 8.

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