Admission restriction method and device, communication system

Abstract

In an embodiment of the present application, an admission control method, an apparatus and a system are provided, which include the repeater receiving a first message related to admission control, the first message including or not including first information, and the repeater ignoring the first information and / or skipping a first process related to the admission control and / or performing a second process related to the admission control.

Description

[Technical field]

[0001] The present embodiment relates to the field of communication technology. [Background technology]

[0002] Compared with traditional 3G (third generation mobile communication technology) and 4G (fourth generation mobile communication technology) systems, 5G (fifth generation mobile communication technology) systems can provide larger bandwidth and higher data rates, and can support more types of terminals and vertical services. Therefore, the allocated frequency of 5G systems is usually obviously higher than that of 3G and 4G systems. For example, 5G systems can be allocated to millimeter wave bands.

[0003] However, the higher the carrier frequency, the more significant the attenuation the signal will encounter during transmission. Therefore, in the actual allocation of 5G systems, how to better enhance cell coverage, especially in the mmWave band, has become a problem waiting to be solved.

[0004] It should be noted here that the above technical background is merely described to provide a clear and complete explanation of the technical solutions of the present application and to facilitate the understanding of those skilled in the art, and it cannot be recognized that the technical solutions are publicly known to those skilled in the art merely because they are described in the background art section of the present application. Summary of the Invention

[0005] In order to better solve the coverage problem in the practical allocation of cellular mobile communication systems, a radio frequency repeater is used to amplify and transmit communication signals between terminal devices and network devices, which is a relatively commonly used allocation method. Radio frequency repeaters are relatively widely applied in the practical allocation of 3G and 4G systems. In general, a radio frequency repeater is a device that amplifies and transmits signals between network devices and terminal devices in a radio frequency band.

[0006] Regarding the coverage problem encountered in the allocation of 5G systems, adopting radio frequency repeaters to enhance coverage is one of the viable solutions. However, traditional repeaters do not have the ability to communicate with network equipment and cannot obtain relevant information on uplink and downlink configuration from network equipment. Therefore, although the allocation of such repeaters in 5G systems can help to enhance signal strength, they cannot flexibly respond to complex environmental changes and cannot achieve the same effect as the same radio frequency repeaters allocated in 3G and 4G systems.

[0007] A smart repeater is an enhancement to conventional radio frequency repeaters that has the ability to receive and process side control information from the network, which can allow the smart repeater to perform its amplification and forwarding operations in a more efficient manner, thus reducing unnecessary noise amplification, allowing for better spatially directional transmission and reception, and simplified network integration.

[0008] However, the inventors have discovered that currently, in a scenario in which smart relays are allocated, no research has been conducted on how to perform admission control for smart relays.

[0009] To address at least one of the above problems, the present embodiments provide an admission control method and device, and a communication system.

[0010] According to one aspect of the present invention, there is provided an admission control device for use in a repeater, the admission control device comprising: a first receiving unit for receiving a first message related to admission control, the first message including or not including first information; and a first processing unit configured to ignore the first information, and / or to skip a first process related to the admission control, and / or to perform a second process related to the admission control.

[0011] According to another aspect of the present invention, there is provided an admission control device applied to a network device, the admission control device comprising: a first transmission unit for transmitting a first message related to admission control to a repeater, the first message including first information, the first information being a specific value or the first message not including the first information; or a first transmitting unit for not transmitting a first message related to admission control to the repeater; or The device comprises: a second receiving unit for receiving a second message transmitted by the repeater; and a second processing unit for processing requests relating to the second message at a high priority level.

[0012] According to another aspect of the present embodiment, a communication system is provided that includes a network device and / or a repeater, the repeater including an admission control device in one direction, and the network device including an admission control device in another direction.

[0013] One of the beneficial effects of the present embodiment is that the repeater ignores the first information contained in the first message related to admission control and / or skips the first process related to admission control and / or performs the second process related to admission control, so that the repeater is not subject to the control of existing admission control mechanisms, thereby alleviating network congestion and reducing allocation costs.

[0014] With reference to the following description and the accompanying drawings, specific embodiments of the present application are disclosed in detail, and the manner in which the principles of the present application can be adopted is pointed out. It should be understood that the embodiments of the present application are not limited in scope by any means. Numerous modifications, alterations and equivalents are included in the embodiments of the present application within the spirit and terms of the appended claims.

[0015] Features that are described and / or presented in one embodiment may be used in the same or similar manner in one or more other embodiments, may be combined with features in the other embodiments, or may be substituted for features in the other embodiments.

[0016] It should be emphasized here that the term "comprises" when used in this specification refers to the presence of features, wholes, steps or components, but does not exclude the presence or addition of one or more other features, wholes, steps or components.

[0017] Elements and features described in one drawing or one embodiment of the present application may be interconnected with elements and features shown in one or more other drawings or embodiments, and in the drawings, like reference numerals represent corresponding parts in the several drawings and may be used to indicate corresponding parts used in more than one embodiment. [Brief description of the drawings]

[0018] [Figure 1] 1 is a schematic diagram of a communication system according to an embodiment of the present invention; [Diagram 2] FIG. 2 is a schematic diagram showing how a repeater in an embodiment of the present invention transmits and receives signals. [Diagram 3] FIG. 2 is a schematic diagram showing how a repeater in an embodiment of the present invention transmits and receives signals. [Figure 4] 1 is a schematic diagram of an RRC connection establishment process; [Diagram 5] 1 is a schematic diagram of an RRC connection recovery process. [Figure 6] 1 is a schematic diagram of the RRC connection release process. [Figure 7] FIG. 2 is a schematic diagram of an admission restriction method in an embodiment of the present invention. [Figure 8] FIG. 2 is a schematic diagram of an admission restriction method in an embodiment of the present invention. [Figure 9] FIG. 2 is a schematic diagram of an admission restriction method in an embodiment of the present invention. [Figure 10] FIG. 2 is a schematic diagram of an admission restriction method in an embodiment of the present invention. [Figure 11] FIG. 2 is a schematic diagram of an admission limiting device according to an embodiment of the present invention. [Figure 12] FIG. 2 is a schematic diagram of an admission limiting device according to an embodiment of the present invention. [Figure 13] FIG. 2 is a schematic diagram of an admission limiting device according to an embodiment of the present invention. [Figure 14] FIG. 2 is a schematic diagram of an admission limiting device according to an embodiment of the present invention. [Figure 15] FIG. 1 is a schematic diagram of a network device according to an embodiment of the present invention. [Figure 16] FIG. 2 is a schematic diagram of a repeater according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] These and other features of the present application will become apparent from the following specification, taken in conjunction with the accompanying drawings, in which: While certain embodiments of the present application are specifically disclosed and in which it is shown and described some of the embodiments in which the principles of the present application may be employed, it is to be understood that the present application is not limited to the described embodiments, but on the contrary, the present application includes all modifications, variations and equivalents falling within the scope of the appended claims.

[0020] In the embodiments of the present application, the terms "first", "second", etc. are used to distinguish different elements in terms of designation, but do not indicate the spatial or chronological order of the elements, and the elements are not limited by the terms. The term "and / or" includes any and all combinations of one or more of the associated listed terms. The terms "comprise", "include", "have", etc. refer to the presence of stated features, elements, elements or components, but do not exclude the presence or addition of one or more other features, elements, elements or components.

[0021] In the present embodiment, the singular forms "a" or "the" should be understood to include the plural form and broadly mean "one" or "a group", and should not be limited to the meaning of "one". In addition, "the" should be understood to include not only the singular form but also the plural form, unless otherwise clearly indicated in the context. In addition, the term "according to" should be understood to mean "at least in part depending on ..." and the term "based on" should be understood to mean "at least in part based on ...", unless otherwise clearly indicated in the context.

[0022] In the present embodiments, the term "communications network" or "wireless communication network" may refer to a network conforming to any of the following communications standards, such as Long Term Evolution (LTE), Advanced Long Term Evolution (LTE-A, LTE-Advanced), Wideband Code Division Multiple Access (WCDMA), High-Speed ​​Packet Access (HSPA), etc.

[0023] Furthermore, communication between devices in the communication system may be performed according to any generation of communication protocols, including, but not limited to, 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G and 5G communication protocols, New Radio (NR), and / or other currently known or future developed communication protocols.

[0024] In the present embodiment, the term "network device" refers to a device that connects a terminal device to a communication network and provides a service to the terminal device in a communication system, for example. The network device includes, but is not limited to, a base station (BS), an access point (AP), a transmission reception point (TRP), a broadband transmitter, a mobile management entity (MME), a gateway, a server, a radio network controller (RNC), a base station controller (BSC), etc.

[0025] Among them, the base station includes, but is not limited to, a Node B (NodeB or NB), an evolved Node B (eNodeB or eNB), and a 5G base station (gNB), and may further include a remote radio head (RRH), a remote radio unit (RRU), a relay or a low-power node (e.g., femeto, pico, etc.), an integrated access and backhaul (IAB) node, or an IAB-DU or an IAB-donor. Furthermore, the term "base station" may include some or all of the functions thereof, and each base station may provide communication coverage for a specific geographical area. The term "cell" may refer to a base station and / or its coverage area, which is determined by the context of the term. When not causing confusion, the terms "cell" and "base station" are interchangeable.

[0026] In the present embodiment, the term "User Equipment" (UE) or "Terminal Equipment" (TE) refers to equipment that connects to a communication network via a network device and receives network services. The terminal equipment may be fixed or mobile, and may also be called a mobile station (MS), a terminal, a subscriber station (SS), an access terminal (AT), an IAB-MT, a station, etc.

[0027] Among these, terminal devices include, but are not limited to, cellular phones, personal digital assistants (PDAs), modems, wireless communication devices, handheld devices, machine-type communication devices, laptop computers, cordless phones, smartphones, smart watches, digital cameras, etc.

[0028] Furthermore, in a scene such as the Internet of Things (IoT), the terminal equipment may further be a monitoring or measuring device or apparatus, and may include, but is not limited to, a Machine Type Communication (MTC) terminal, an in-vehicle communication terminal, a Device to Device (D2D) terminal, a Machine to Machine (M2M) terminal, etc.

[0029] Also, the term "network side" or "network equipment side" refers to one side of a network, which may be a base station or one or more network equipment as described above. The term "user side" or "terminal equipment side" refers to the user or terminal side, which may be a UE or may include one or more terminal equipment as described above. In this specification, unless otherwise specified, "equipment" may refer to network equipment or terminal equipment.

[0030] In the following, the scenes of the embodiment of the present application are described through the presented examples, but the present application is not limited thereto.

[0031] FIG. 1 is a schematic diagram of an application scenario in an embodiment of the present application. As shown in FIG. 1, for convenience of explanation, one network device (e.g., 5G base station gNB or gNB-CU) 101, one repeater 102, and one terminal device (UE) 103 are illustrated as an example, but the present application is not limited thereto. As shown in FIG. 1, the terminal device 103 establishes a connection with the network device 101 and communicates with it. In order to improve the quality of communication, the signal between the terminal device 103 and the network device 101 is processed (e.g., amplified, etc.) through the repeater 102.

[0032] As shown in Figure 1, in the downstream (from network equipment to terminal equipment) and upstream (from terminal equipment to network equipment) directions, it receives, processes and transmits radiated or conducted RF carriers. The processing includes power amplification, beamforming, propagation environment reshaping, etc. If only the downlink or uplink operating band is specified, only the specified uplink or downlink is repeated.

[0033] 2 and 3 are schematic diagrams of a repeater transmitting and receiving signals, where as shown in FIG. 2, the repeater includes a repeater with omni-directional or fixed-directional (non-self-adaptive over time) Tx / Rx or self-adaptive over time capability, and as shown in FIG. 3, the beam for transmitting the radio frequency signal is controlled by a network device (e.g., a RAN node).

[0034] In the present embodiment, the network device and the terminal device may transmit existing or future tasks, including, but not limited to, enhanced mobile broadband (eMBB), massive machine type communication (mMTC), low latency reliable communication (URLLC), and vehicle-to-everything (V2X) communication.

[0035] In Fig. 1, a case where the repeater can transfer signals between a network device and a terminal device is described as an example, but the present application is not limited thereto. For example, the repeater can transfer signals between a first device and a third device as a second device, and can also directly communicate with the first device and / or the third device, and the first device to the third device can be any device in the network. In the following embodiment, a case where the first device is a network device and the third device is a terminal device is described as an example.

[0036] In the present embodiment, a beam may be expressed as a lobe, a reference signal (RS), a transmission configuration indication (TCI), a spatial domain filter, etc. Alternatively, it may be expressed as a beam index, a lobe index, a reference signal index, a transmission configuration indication index, a spatial domain filter index, etc. The reference signal may be, for example, a channel state information reference signal (CSI-RS), a sensing reference signal (SRS), an RS for use by a repeater, an RS transmitted by a repeater, etc. The TCI may be expressed as a TCI state.

[0037] In the present embodiment, the repeater may be further expressed as a network controlled repeater (NCR) or a reconfigurable intelligent surfaces (RIS) or a relay station, a radio frequency repeater, a forwarder, or a radio frequency forwarder, or may be further expressed as a relay station node, a repeater node, or a repeater node, or may be further expressed as a smart relay station, a smart repeater, a smart repeater, a smart relay station node, a smart repeater node, or a smart repeater node, and the repeater may be a type of node, device, or entity, but the present application is not limited thereto.

[0038] In the embodiments of the present application, the network equipment may be an equipment of a service cell of a terminal equipment, an equipment of a cell in which a repeater is located, an equipment of a service cell of the repeater, or a parent node of the repeater. The present application does not place any restrictions on the name of the repeater, and any equipment capable of realizing the above functions is included in the scope of the repeater in the present application.

[0039] Currently, taking into account issues such as network congestion, NG-RAN supports overload and admission control functions, including backoff mechanisms during random access, radio resource control (RRC) connection rejection, RRC connection release, and terminal device-based access prohibition mechanisms.

[0040] For example, in a random access process, the terminal device may receive a backoff instruction, and a backoff mechanism is applied to a contention-based random access process, where the backoff instruction specifies a time range in which the terminal device should wait before reselecting a random access resource and / or sending a random access preamble code; the terminal device obtains a PREAMBLE_BACKOFF value according to the backoff instruction, and multiplies it by a coefficient SCALING_FACTOR_BI to adopt a random value between 0 and PREAMBLE_BACKOFF×SCALING_FACTOR_BI; if the random access is not successful, after waiting for the random value time, selects and / or determines a random access resource and / or a random access preamble code, and sends the selected / determined random access preamble code on the determined random access resource.

[0041] For example, in a random access process, a terminal device sends a Radio Resource Control (RRC) establishment request or recovery request to a network side, which carries an establishment cause or recovery cause, and the network side can decide whether to accept the request based on the establishment cause or recovery cause, and if the network side accepts the request, it can send an RRC establishment message or an RRC recovery message, or if not, it returns an RRC rejection message. By receiving or rejecting the RRC establishment request or RRC recovery request, the network side can control the congestion situation.

[0042] FIG. 4 is a schematic diagram of a method when a terminal device attempts to establish a new connection from an RRC idle state. As shown in FIG. 4, in 401, the terminal device sends an RRC establishment request RRCSetupRequest to a network device; in 402, the network device determines that it cannot process the process (e.g., due to network congestion, etc.); in 403, the network device sends an RRC rejection message (including a waiting time to be carried) to keep the terminal device in an RRC idle state.

[0043] FIG. 5 is a schematic diagram of a method when a terminal device attempts to recover a connection from an RRC inactive state. As shown in FIG. 5, in 501, the terminal device sends an RRC recovery request RRCResumeRequest to a network device; in 502, the network device determines the reason why the network device cannot process the request (e.g., due to network congestion, etc.); in 503, the network device sends an RRC rejection message (including a waiting time to be carried) to keep the terminal device in an RRC inactive state.

[0044] Network devices should report establishment causes with high priority as "emergency", "mps-Priority Access" and It will treat these access attempts as "mcs-Priority Access" (i.e. emergency calls, MPS, MCS users) and will only respond with a connection rejection message under extreme network load conditions that may pose a threat to the stability of the network equipment.

[0045] For example, the release of an RRC connection is usually performed by a network device, and the purpose of the RRCRelease process is to release an RRC connection, which includes releasing established radio bearers and returning radio link control (BH LRC) channels and radio resources.

[0046] The RRC connection release procedure can be used to redirect a terminal device to one NR frequency or one E-UTRA carrier frequency. The reorientation mechanism upon RRC release can be used to achieve load balancing within the NR.

[0047] FIG. 6 is a schematic diagram of an RRC connection release method. As shown in FIG. 6, in 601, a network device sends an RRC release message to a terminal device.

[0048] For example, the terminal-based access barring mechanism is used in a unified access control process / mechanism / architecture, i.e., a terminal-based access barring mechanism. The network side can broadcast admission control parameters, and the network equipment checks whether to perform an actual access attempt based on the admission control parameters applied to the access class corresponding to the access attempt. The unified access control mechanism can be applied to user equipment that uses Evolved Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access (E-UTRA) or NR to access the 5G core network. The mechanism can also be applied to situations when a user equipment in an idle state, inactive state, or connected state issues a new access attempt (e.g., before sending a new session request, e.g., before sending a MSG3, before sending a connection request message, or before sending a connection recovery request message).

[0049] The NG-RAN broadcasts admission control parameters associated with the Access Categories and Access IDs (in case of network sharing, the admission control parameters can be set independently for each land-based Public Mobile Network (PLMN)).

[0050] Based on the selected PLMN, the access class selected for the access attempt, and the prohibition information of access ID broadcast, the terminal device determines whether the access attempt is authorized, and for a request that stimulates the non-access stratum (NAS, upper layer), the NAS determines the access class and access ID, and for a request that stimulates the access stratum (AS), the RRC determines the access class and at the same time the NAS determines the access ID.

[0051] The inventor finds that in the scenario where smart repeaters are allocated, there is currently no research on how to admission control the smart repeaters. The inventor realizes that the repeaters do not perform real tasks, so they do not cause network congestion, and the repeaters do not need to be controlled by the admission control mechanism. In addition, after the repeaters access the network, they can provide better wireless quality to the edge terminal equipment of the cell, improve resource utilization, and reduce the resources required for transmission, effectively relieving network congestion, which also explains why the repeaters do not need to be controlled by the admission control mechanism.

[0052] The inventor discovered that if the access control mechanism of the current terminal equipment is followed, the repeater will be subject to the control of the admission control mechanism and will probably not be able to access the network, which will limit the application scenarios of the repeater and increase the allocation cost.

[0053] The above problems will be described below based on various embodiments of the present application, which are merely illustrative and not restrictive of the present application.

[0054] Example of the first aspect In the present embodiment, an admission restriction (also called access control) method is provided, which will be described starting from the terminal device.

[0055] FIG. 7 is a schematic diagram of an admission restriction method in an embodiment of the present application. As shown in FIG. 7, the method includes: 701, the relay receives a first message related to admission control, the first message including or not including first information; 702, the repeater ignoring the first information, and / or skipping a first process related to the admission control, and / or performing a second process related to the admission control.

[0056] In the embodiment of the present application, the repeater ignores the first information included in the first message related to admission control, and / or skips the first process related to admission control, and / or performs the second process related to admission control, so that the repeater is not controlled by the existing admission control mechanism, thereby alleviating network congestion and reducing allocation costs. The above "not controlled" can be replaced with "not apply / applicable", "not use", "ignore", "skip", etc., and the embodiment of the present application is not limited thereto.

[0057] Existing admission control mechanisms mainly include backoff mechanism in random access process, radio resource control (RRC) rejection, RRC release, and unified access control procedure. In the following, the behavior of the repeater in each of the above admission control mechanism scenarios will be described, and the first message related to the admission control is the first message in the above admission control process.

[0058] (1) Backoff mechanism in random access process In a series of embodiments, the random access process may be a conventional contention-based random access, which includes two interactions (4-step RA) between a network device and a terminal device. In the first interaction, the terminal device issues a random access request (MSG1) and receives a random access response (MSG2) fed back by the network device. In the second interaction, the terminal device transmits information including a user identifier, etc. to the network device (MSG3) and receives MSG4 fed back by the network device. Alternatively, the random access process may be a two-step random access (2-step RA), that is, the existing MSG1 and MSG3 are merged into a new MSGA, and MSG2 and MSG4 are merged into MSGB. For specific details, reference may be made to existing technologies, and will not be described in detail here.

[0059] In a series of embodiments, the first message may include a random access response RAR or MSGB in MSG2, and the first information includes backoff instruction related information, for example, the backoff instruction related information may be a MAC subheader carrying a backoff instruction field. The value of the backoff instruction field may be regarded as an index value of a backoff parameter, that is, the backoff instruction field is used to indicate a backoff parameter value, and the backoff parameter value indicates a time range that needs to be waited before re-emitting the random access preamble code, and in 701, "receive" in the relay receiving the first message related to admission control may further be replaced with "detect", "received", or "attempt to receive", that is, the reception here may indicate that the relay performs an operation of receiving (detecting) the first message, but does not indicate the success or failure of reception, that is, the relay may receive the first message, or may attempt to receive the first message but not succeed, and this is not a limitation in the embodiments of the present application.

[0060] In a series of embodiments, before sending the first message, the network device can distinguish between the terminal device and the repeater, and in this case, the RAR or MSGB does not include backoff instruction related information or includes backoff instruction related information, and the value of the backoff instruction field carried in the backoff instruction related information is a specific value, which can be one specific value other than 0 to 13, and the backoff parameter value corresponding to the specific value (index) is 0 (ms), for example, the specific value can be 14 or 15, but this is not limited in the embodiments of the present application.

[0061] For example, if the first message is an RAR, the RAR does not include a MAC subhead (sub-PDU) carrying a backoff indication field, or the RAR includes a MAC subhead (sub-PDU) carrying a backoff indication field, but the value of the backoff indication field is the specified value.

[0062] For example, if the first message is an MSGB, the MSGB may not include a MAC subhead (sub-PDU) carrying a backoff indication field, e.g., the value of the T1 field in MSGB is 1 (indicating that the MAC subhead contains a random access preamble code but not a T2 field, i.e., that the BI field is not included), or the value of the T1 field in MSGB1 is 0 but the value of the T2 field is 1 (indicating that the MAC subhead contains a MAC SDU indicator but not a backoff indication field).

[0063] For example, if the first message is an MSGB, the MSGB may include a MAC subhead (sub-PDU) carrying a backoff indication field, and for example, the value of the T1 field in MSGB1 is 0, the value of the T2 field is 0 (indicating that the backoff indication field is included in the MAC subhead), but the value of the backoff indication field is the specified value.

[0064] According to the above embodiment, since the first message does not include backoff instruction related information or the value of the backoff instruction field is a specific value (corresponding to the backoff parameter value being 0 (ms)), in 702, after receiving the first message, the repeater skips the first processing related to the admission control, e.g., no backoff (waiting) is required and the repeater is not subject to the control of the backoff mechanism in the random access process, thereby alleviating network congestion and reducing allocation costs.

[0065] In a series of embodiments, before sending the first message, regardless of whether the network device can distinguish between the terminal device and the repeater, the RAR or MSGB can both include back-off instruction related information. In 702, the repeater ignores the back-off instruction and / or skips the first process related to the admission control, including setting PREAMBLE_BACKOFF to 0. That is, regardless of the value of the back-off instruction, the repeater does not need to search and obtain the PREAMBLE_BACKOFF value corresponding to the BI, and directly sets PREAMBLE_BACKOFF to 0, so that the repeater does not need to delay and perform the random access resource selection process, or sets the waiting time of the repeater to 0 to perform the random access resource selection process, and is not controlled by the back-off mechanism in the random access process, thereby alleviating network congestion and reducing allocation costs.

[0066] In a series of embodiments, if the first message is not successfully received in 701, the first procedure (including the random access resource selection process) for the admission control is skipped in 702, for example, if the RAR is not successfully received and the random access process is not completed, the repeater (immediately) executes the random access resource selection process, thus alleviating network congestion and reducing allocation costs, since the repeater is not under the control of the back-off mechanism in the random access process.

[0067] In a series of embodiments, the repeater receives an RAR in a random access response reception time window (ra-Response Window or msgB-Response Window), which can be configured in the beam failure recovery configuration BeamFailureRecoveryConfig sent by the network device or in the random access public configuration RACH-ConfigCommon (determined according to the excitation cause of the random access, for example, if the random access is beam failure recovery excited, the ra-Response Window configured by BeamFailureRecoveryConfig is used), and unsuccessful reception of the RAR includes at least one of the following several situations:

[0068] If the ra-ResponseWindow configured in the BeamFailureRecoveryConfig expires and the serving cell that transmits the random access preamble does not receive a PDCCH transmission on the search space indicated by the recovery search space identifier (recoverySearchSpaceId, configured by the network device, for recovering RAR from beam failure) that is addressed by the Cell Radio Network Temporary Identifier (C-RNTI) and is used to monitor the response time of the beam failure recovery request, then the repeater (immediately) performs a random access resource selection process if the random access process is not completed; or If the ra-ResponseWindow configured in the RACH-ConfigCommon expires and an RAR including a random access preamble code that matches the transmitted random access preamble index PREAMBLE_INDEX is not received (e.g., the RAPID indicated by the random access preamble does not match PREAMBLE_INDEX), the repeater (immediately) executes a random access resource selection process if the random access process is not completed; or If the random access response reception time window msgB-ResponseWindow has expired and the random access response reception has not yet been recognized as successful, and the MSGA maximum transmission count (msgA-TransMax) does not apply or the random access preamble transmission count counter PREAMBLE_TRANSMISSION_COUNTER is not equal to msgA-TransMax+1, then the random access procedure is not completed and the repeater (immediately) performs the random access resource selection procedure of the 2-step RA type random access; or If it is recognized that the contention resolution is unsuccessful, then if the random access procedure is unsuccessful, the repeater (immediately) executes the random access resource selection procedure. For example, if the random access type RA_TYPE is set to 4-step RA, the repeater (immediately) executes the random access resource selection procedure, and if not (i.e., RA_TYPE is set to 2-step RA), the repeater (immediately) executes the random access resource selection procedure of 2-step RA type random access.

[0069] (2) RRC Rejection In a series of embodiments, before 701, when the repeater attempts to establish a new connection in an RRC idle state and / or attempts to recover a connection in an RRC inactive state, a second message is sent to the network, the second message including an RRC establishment request or an RRC recovery request, and in 701, the network device sends a first message to the repeater, the first message including an RRC rejection message, and the first information includes a waiting time waitTime, which indicates the length of a timer T302, and which is used to indicate the waiting time for the repeater to issue a next RRC connection establishment / recovery flow.

[0070] In a series of embodiments, since the RRC rejection message does not include a waiting time, in 702, after the relay receives the first message, it skips the first process related to the admission control, for example, without needing to activate T302 (or set T302 to 0), i.e., without needing to wait, and immediately performs the next RRC connection establishment / recovery process, and is not controlled by the waiting time in the RRC rejection message, which can alleviate network congestion and reduce allocation costs.

[0071] In a series of embodiments, the RRC rejection message may also include a waiting time, which is in the range of [1,16] (for example, excluding 0), and in 702, the repeater ignores the waiting time and / or skips the first process related to the admission control including determining the waiting time as 0, that is, regardless of the value of the waiting time, the repeater does not need to be always under the control of the waiting time, and the repeater does not need to activate T302 (or set T302 to 0), so that the repeater does not need to delay and immediately perform the next RRC connection establishment / recovery flow, or the repeater performs the next RRC connection establishment / recovery flow with a waiting time of 0 and is not under the control of the waiting time in the RRC rejection, which can alleviate network congestion and reduce allocation costs.

[0072] In a series of embodiments, the RRC rejection message may also include a waiting time, and the value range of the waiting time is [0,16] (including 0 for example). If the value of the waiting time is not 0, the operation is performed as described above. If the value of the waiting time is 0, in 702, the relay ignores the waiting time, and / or skipping the first process related to the admission control includes determining the waiting time to be 0, and / or performing the second process related to the admission control includes setting T302 to 0, and the relay immediately performs the next RRC connection establishment / recovery flow, that is, the waiting time can be set to 0, so that the relay does not need to delay and immediately performs the next RRC connection establishment / recovery flow, or the relay performs the next RRC connection establishment / recovery flow with a waiting time of 0, and is not subject to the control of the waiting time in RRC rejection, which can alleviate network congestion and reduce allocation costs.

[0073] (3) RRC Release In one set of embodiments, in 701, the network device sends a first message to the repeater, the first message including an RRC release message, the first information including a waiting time waitTime indicating a time length of a timer T302, the waiting time being used to indicate a waiting time for the repeater to perform a next RRC connection establishment flow, and during the waiting time, access attempts are prohibited.

[0074] In a series of embodiments, since no waiting time is included in the RRC release message, in 702, after the relay receives the first message, it skips the first process related to the admission control, which includes that the relay does not need to activate T302 (or set T302 to 0), so that the relay immediately attempts access without the need for a waiting time, and is not subject to the control of the waiting time in the RRC release, which can alleviate network congestion and reduce allocation costs.

[0075] In a series of embodiments, the RRC release message may also include a waiting time, which is in the range of [1,16] (for example, excluding 0), and in 702, the repeater ignores the waiting time and / or skips the first process related to the admission control, which includes determining the waiting time as 0, that is, regardless of the value of the waiting time, the repeater does not need to be controlled by the waiting time all the time, and the repeater does not need to activate T302 (or set T302 to 0), so the repeater can attempt access without waiting, and is not controlled by the waiting time in the RRC release, which can alleviate network congestion and reduce allocation costs.

[0076] In a series of embodiments, the RRC release message may also include a waiting time, and the value of the waiting time may be in the range of [0,16] (including 0 for example). If the value of the waiting time is not 0, the operation is performed as described above. If the value of the waiting time is 0, in 702, the repeater ignores the waiting time, and / or skipping the first process related to the admission control includes determining the waiting time to be 0, and / or performing the second process related to the admission control includes setting T302 to 0. The repeater can attempt access without having to wait, and is not subject to the control of the waiting time in the RRC release, which can alleviate network congestion and reduce allocation costs.

[0077] (IV) Unified access control process In a series of embodiments, the first message includes system information (e.g., SIB1) broadcast by the network device, and the first information includes admission control parameters, which are associated with an access class and an access ID, and the admission control parameters may include at least one of UAC-BarringInfoSetList, UAC-BarringPerCatList, and UAC-BarringPerPLMN-List, and the admission control parameters include a barring time (uac-BarringTime) and / or a barring factor (uac-BarringFactor), which is used to compare with a random number and whether the access attempt is allowed or not is determined according to the comparison result, and the barring time is used to calculate the length of a timer T390 (corresponding to the access class), and the admission control parameters may be independently configurable for each PLMN.

[0078] For example, multiple access classes can be defined in advance, such as AC0-AC30 defined as standardized and AC31-AC63 defined as provider. Multiple access classes can correspond to one probabilistic cause value, such as AC0-AC3 corresponding to cause value 1, AC4-AC10 corresponding to cause value 2, etc. However, the present application is not limited thereto, and the access classes and probabilistic cause values ​​can be defined according to actual needs.

[0079] For example, the Access ID indicates the configuration being provided and the numeric range includes 0-15, where 0 indicates that no parameters are configured, 1 indicates that MPS (Multimedia Priority Service) is configured, 2 indicates that MCS (Mission Critical Service) is configured, 3 indicates that the UE is in a disaster condition, 4-10 are reserved, and 11-15 indicates that the configured access class is 11-15.

[0080] In a series of embodiments, in a unified access control process, a network device can provide an access class, an access ID, and the admission control parameters, and the repeater can determine the admission barring parameters to be applied via the access ID and access class for an access attempt, and perform a unified access control process (including an access barring check) to determine whether the access attempt is allowed or barred. If the access attempt is barred, a timer T390 corresponding to the access class is started, and if T390 expires and timer T302 is not running (if the access class is 2, it is not necessary to consider whether timer T302 is running), the barring of the access class is lifted.

[0081] In a series of embodiments, after receiving the admission control parameters, the repeater can skip the unified access control process, or can execute the unified access control process according to the admission control parameters, which are described respectively as follows:

[0082] (1) Repeaters can skip the unified access control process. In one set of embodiments, in 701, the repeater receives SIB1 sent by the network device, which includes admission control parameters, and in 702, the repeater skips a first process related to the admission control, which includes the repeater skipping a unified access control process.

[0083] In a series of embodiments, if a first condition is satisfied, the RRC layer of the relay skips the unified access control process, and the first condition includes: When performing an RRC connection establishment procedure and the higher layers have provided an access class and one or more access ID(s) when requesting the RRC connection establishment, or When performing an RRC connection restoration procedure and the restoration of the RRC connection is initiated in response to an NG-RAN call; or When performing an RRC connection restoration procedure, and the restoration of the RRC connection is initiated by higher layers, the higher layers have provided an access class and one or more access ID(s); This includes the case where an RRC connection restoration process is performed and the restoration of the RRC connection is stimulated by updating the RNA.

[0084] In one set of embodiments, when performing an RRC connection recovery process and the RRC connection recovery is initiated in response to an NG-RAN call, skipping the first process related to the admission control includes a lower layer (e.g., an RRC layer) of the repeater skipping a unified access control process, and optionally may further include the RRC layer of the repeater selecting 0 as the access class.

[0085] In a series of embodiments, when performing an RRC connection recovery procedure and when the recovery of the RRC connection is triggered by an RNA update, the unified access control procedure includes the RRC layer of the relay skipping the unified access control procedure, and optionally further includes that when the RRC layer of the relay does not determine the access class and / or performs an emergency task, the RRC layer of the relay can set the recovery establishment cause to an emergency situation.

[0086] In a series of embodiments, an establishment cause must be included in the RRC connection establishment / recovery request, and the lower layer (e.g., RRC layer) of the relay skips the access control check, but in order to obtain the RRC establishment cause, for an access attempt, the lower layer (e.g., RRC layer) of the relay needs to determine the access class and access ID(s), so as to determine the RRC establishment cause corresponding to the access class. Or, the upper layer (e.g., NAS layer) of the relay does not provide the access class and access ID to the lower layer (e.g., RRC layer), but provides the RRC establishment cause, and the upper layer has provided the RRC establishment cause, so the establishment cause can be determined without determining the access class.

[0087] In a series of embodiments, in order to ensure access barring check of the access common sense determined by the lower layer in the RRC inactive state or in the 5GMM connected mode with the RRC inactive indication, the upper layer (e.g., NAS layer) of the repeater provides the lower layer (e.g., RRC layer) with an access ID to be used for the access attempt determined.

[0088] (2) the repeater is capable of performing the unified access control process according to the admission control parameters; In one set of embodiments, the admission control parameters may be associated with a repeater specific (dedicated) access class and / or a repeater specific access ID.

[0089] For example, the access class can be defined in advance as a plurality of access classes, for example, AC0 to AC30 defined by the standardization and AC31 to AC63 defined by the provider. In addition, repeater-specific access classes AC, for example, AC64, AC65, can be defined, or existing AC can be changed to repeater-specific ones, for example, AC31, AC63. In addition, at least one of 4 to 10 reserved in the access ID can be changed to a repeater-specific access ID. In 702, the repeater performing the second process related to the admission control includes the repeater performing a unified access control process based on the repeater-specific access class and / or access ID, for example, the repeater determines the repeater-specific access class and / or access ID, the admission control parameters include a prohibition time and / or a prohibition factor, the prohibition time and / or the prohibition factor are applied to the repeater-specific access class and / or access ID, and the repeater performs the unified access control process according to the admission control parameters associated with the repeater-specific access class and / or access ID.

[0090] In a series of embodiments, the admission control parameters can be repeater-specific admission control parameters, including repeater-specific prohibition factors and / or repeater-specific prohibition times or repeater-specific ratios / factors configured for an access class and / or access ID, for example, repeater-specific prohibition factors and / or prohibition times are obtained after calculating (e.g., +×MOD) the prohibition factors and / or prohibition times of the terminal equipment in the admission control parameters and the repeater-specific ratios / factors. In 702, the repeater performing a second process related to the admission control includes the repeater performing a unified access control process using the repeater-specific admission control parameters, for example, the repeater determines an access class and / or access ID, and the repeater performs a unified access control process according to the repeater-specific admission control parameters associated with the access class and / or access ID.

[0091] In a series of embodiments, when the repeater performs a unified access control process according to the admission control parameters (which are the admission control parameters associated with the repeater-specific access class and / or the repeater-specific access ID, or the repeater-specific admission control parameters associated with the access class and / or the access ID), the repeater obtains a random number uniformly distributed within the [0,1) range, and if the random number is smaller than the value indicated by the prohibition factor obtained according to the admission control parameters, the repeater determines that the access attempt is permitted, otherwise, the repeater recognizes that the access attempt is prohibited. If the access attempt is prohibited, the repeater obtains a random number uniformly distributed within the [0,1) range, and the repeater starts a timer T390 for this access class, and the timer value is calculated using the prohibition time obtained according to the admission control parameters, and the calculation formula is T390=(0.7+0.6×random number)×prohibition time. If T390 expires and timer T302 is not running (if the access class is 2, it is not necessary to take into account whether timer T302 is running or not), the prohibition for that access class is lifted.

[0092] It should be noted that the above attached drawing 7 is merely a schematic explanation of the embodiment of the present application, and the present application is not limited thereto. For example, the execution order between each operation can be adjusted as appropriate, and further, other series of operations can be added or some operations can be deleted. Those skilled in the art can make appropriate modifications according to the above content without being limited to the description of the attached drawing 7.

[0093] According to the above embodiment, the first information contained in the first message related to the repeater admission control is ignored, and / or the first process related to the admission control is skipped, and / or a second process related to the admission control is performed, so that the repeater is not subject to the control of the existing admission control mechanism, thereby alleviating network congestion and reducing allocation costs.

[0094] Example of the second aspect In the present embodiment, an admission restriction method is provided, and will be described starting from the network device.

[0095] FIG. 8 is a schematic diagram of an admission restriction method in an embodiment of the present application. As shown in FIG. 8, the method includes: 801, the network device sends a first message regarding admission control to a repeater, the first message includes first information, the first information is a specific value, or the first message does not include the first information.

[0096] In one embodiment, the first message includes an RAR or an MSGB, and the first information includes backoff indication related information.

[0097] In one embodiment, the RAR or MSGB does not include backoff indication related information, or includes backoff indication related information and the backoff indication value is zero.

[0098] In one embodiment, the first message includes an RRC rejection message or an RRC release message, and the first information includes a waiting time.

[0099] In one set of embodiments, the RRC rejection message or the RRC release message does not include a waiting time, or includes a waiting time, and the value of the waiting time is zero.

[0100] In one set of embodiments, the first message includes SIB1, and the first information includes admission control parameters.

[0101] In one set of embodiments, the SIB1 includes admission control parameters.

[0102] In one set of embodiments, the admission control parameters are repeater specific admission control parameters, including a repeater specific inhibit factor and / or a repeater specific inhibit time, or a repeater specific ratio / factor.

[0103] In one set of embodiments, the admission control parameter is associated with an access class and an access ID, where the access class is a repeater specific access class and the access ID is a repeater specific access ID.

[0104] In this series of examples, the first message and the first information may be implemented in accordance with (1) to (4) of the first embodiment, and will not be described in detail here.

[0105] According to the above embodiment, the repeaters are not subject to the control of existing admission control mechanisms, which can reduce network congestion and allocation costs.

[0106] FIG. 9A is a schematic diagram of an admission restriction method in an embodiment of the present application. As shown in FIG. 9A, the method includes: 901, the network device not sending a first message related to admission control to a repeater.

[0107] In a series of embodiments, in the case of Radio Resource Control (RRC) rejection and RRC release, the first message includes an RRC rejection message and / or an RRC release message, and the network device does not send an RRC rejection message or does not send an RRC release message to the repeater, i.e., the repeater does not receive the first message (RRC rejection message and / or RRC release message) related to admission control sent by the network device.

[0108] In one set of embodiments, for a Radio Resource Control (RRC) rejection mechanism, before 901, the method further includes the network device receiving a second message sent by the repeater (not shown), the second message including an RRC establishment request and / or an RRC recovery request, in other words, the network device does not reject the repeater's RRC establishment request and / or does not reject the repeater's RRC recovery request.

[0109] In a series of embodiments, optionally, the method may further include the network device sending a third message to the repeater (not shown), the third message including an RRC establishment message and / or an RRC recovery message, the specific details of which may be referred to in the existing technology and will not be described in detail here.

[0110] In one embodiment, for the RRC release mechanism, the network device does not release the RRC connection of the repeater, and therefore does not send an RRC release message to the repeater.

[0111] FIG. 9B is a schematic diagram of an admission restriction method in an embodiment of the present application. As shown in FIG. 9B, the method includes: 901' includes a repeater not receiving a first message related to admission control sent by a network device.

[0112] In one set of embodiments, for a radio resource control (RRC) rejection mechanism, before 901, the method may further include the repeater sending a second message to the network device (not shown), where the second message may include an RRC establishment request and / or an RRC recovery request.

[0113] In a series of embodiments, optionally, the method may further include receiving a third message sent by the network device, the third message including an RRC establishment message and / or an RRC recovery message, and specific details thereof may be referred to in the existing technology, and therefore will not be described in detail here.

[0114] In one embodiment, for the RRC release mechanism, the network device does not release the RRC connection of the repeater, and therefore does not send an RRC release message to the repeater.

[0115] Thus, the relay does not receive RRC reject and / or RRC release messages and is not subject to the control of existing admission control mechanisms, thereby reducing network congestion and allocation costs.

[0116] FIG. 10 is a schematic diagram of an admission restriction method in an embodiment of the present application. As shown in FIG. 10, the method includes: 1001, the network device receives a second message transmitted by a repeater; 1002, the network device processes the request for the second message at a high priority level.

[0117] In one set of embodiments, in a Radio Resource Control (RRC) rejection admission control mechanism, the second message includes an RRC establishment request and / or an RRC recovery request, and in 1002, the network device processing the request for the RRC establishment request and / or the RRC recovery request at a high priority level includes processing the access attempt of the repeater at a high priority level.

[0118] In one set of embodiments, the method further includes the network device sending a first message to the repeater if a second condition is satisfied (not shown), the first message may include an RRC reject message. The second condition includes extreme network load that may threaten the stability of the network device, i.e., only under extreme network load conditions that may threaten the stability of the network device, the repeater's access attempt (request for the second message) is rejected and an RRC reject message is sent to the repeater for the repeater's access attempt.

[0119] In one set of embodiments, in 1001, when the relay attempts to establish a new connection in an RRC idle state or when the relay attempts to recover a connection from an RRC inactive state, the second message is sent, for example, when the relay attempts to establish a new connection in an RRC idle state, an RRC establishment request message is sent, or when the relay attempts to recover a connection from an RRC inactive state, an RRC recovery request message is sent.

[0120] In this manner, network congestion is alleviated and allocation costs are reduced because the network equipment processes requests relating to the second message with a higher priority level, reducing the likelihood that a repeater's access attempt will be rejected.

[0121] Example of the third aspect In the present embodiment, an admission limiting device is provided, which can be, for example, a repeater, or can be a certain member or component disposed in the repeater, and the same contents as those in the first embodiment will not be described in detail again.

[0122] FIG. 11 is a schematic diagram of an admission limiting device according to an embodiment of the present invention. As shown in FIG. 11, the admission limiting device 1100 includes: A first receiving unit 1101 for receiving a first message related to admission control, where the first message includes or does not include first information; A first processing unit 1102 is included to ignore the first information and / or skip a first processing related to the admission control and / or perform a second processing related to the admission control.

[0123] In a series of embodiments, the embodiment of the first receiving unit 1101 and the first processing unit 1102 can refer to 701-702, and the overlapping parts will not be described in detail again here.

[0124] In one embodiment, the first message includes a RAR or a MSGB, and the first information includes backoff instruction related information.

[0125] In a series of embodiments, the RAR or MSGB does not include backoff indication related information, or includes backoff indication related information, and the value of the backoff indication field in the backoff indication related information is a specific value.

[0126] In one set of embodiments, the RAR or MSGB includes backoff indication related information.

[0127] In one set of embodiments, the first processing unit ignoring the value of the backoff instruction field in the backoff instruction related information and / or skipping the first processing related to the admission control includes setting PREAMBLE_BACKOFF to 0.

[0128] In one set of embodiments, if the first receiving unit does not successfully receive the first message related to admission control, the first processing unit skips the first processing related to admission control.

[0129] In one embodiment, if the first receiving unit does not successfully receive the RAR, and the random access procedure is not completed, the first processing unit performs a random access resource selection procedure.

[0130] In one embodiment, the failure to receive the RAR includes: If the random access response reception time window configured in the beam failure recovery configuration is exceeded and the serving cell transmitting the random access preamble code does not receive a PDCCH transmission on the search space addressed by the cell radio network temporary identifier and indicated by the recovery search space identifier for monitoring the response to the beam failure recovery request, or If the random access response reception time window configured in the random access public configuration is exceeded and no RAR containing a random access preamble code matching the transmitted random access preamble index PREAMBLE_INDEX is received, or If the random access response reception time window has expired and the random access response reception has not yet been recognized as successful and the MSGA maximum transmission count msgA-TransMax does not apply or the random access preamble transmission count counter PREAMBLE_TRANSMISSION_COUNTER is not equal to the MSGA maximum transmission count msgA-TransMax+1, This includes cases where competitive resolution is perceived to be unsuccessful.

[0131] In one embodiment, the first message includes an RRC rejection message or an RRC release message, and the first information includes a waiting time.

[0132] In one set of embodiments, the first processing unit ignoring the wait time and / or skipping the first processing related to the admission control includes determining the wait time to be zero.

[0133] In one set of embodiments, the RRC rejection message or the RRC release message does not include a waiting time, or includes a waiting time, and the value of the waiting time is zero.

[0134] In one set of embodiments, the first message includes SIB1, and the first information includes admission control parameters.

[0135] In one set of embodiments, the SIB1 includes the admission control parameters.

[0136] In one set of embodiments, the first processing unit ignoring the admission control parameters and / or skipping the first processing relating to the admission control includes the first processing unit skipping a unified access control process.

[0137] In a series of embodiments, if a first condition is satisfied, the first processing unit skips a unified access control process in an RRC layer; The first condition states: When performing an RRC connection establishment procedure and the higher layers have provided an access class and one or more access ID(s) when requesting the RRC connection establishment, or When performing an RRC connection restoration procedure and the restoration of the RRC connection is initiated in response to an NG-RAN call; or When performing an RRC connection restoration procedure, and the restoration of the RRC connection is initiated by higher layers, the higher layers have provided an access class and one or more access ID(s); This includes the case where an RRC connection restoration process is performed and the restoration of the RRC connection is stimulated by updating the RNA.

[0138] In one set of embodiments, the first processing unit skipping the first processing related to the admission control further includes the first processing unit selecting 0 as an access class in the RRC layer or the processor not determining an access class.

[0139] In one set of embodiments, the first processing unit further comprises: When determining the access class and access ID in the RRC layer, or If the upper layer does not provide the lower layer with an access class and access ID, but does provide an RRC establishment cause, or It is used when a higher layer provides a lower layer with an access ID to be used in a confirmed access attempt.

[0140] In one set of embodiments, the admission control parameter is associated with an access class and / or an access ID, where the access class is a repeater specific access class and the access ID is a repeater specific access ID.

[0141] In one set of embodiments, the admission control parameter is a repeater specific admission control parameter.

[0142] In one set of embodiments, the repeater specific admission control parameters include a repeater specific inhibit factor and / or a repeater specific inhibit time, or a repeater specific ratio / factor.

[0143] In one set of embodiments, the first processing unit performing a second process related to the admission control includes the processor using the admission control parameters to perform a unified access control process.

[0144] In one set of embodiments, the repeater is a network-controlled repeater.

[0145] FIG. 12 is a schematic diagram of an admission limiting device according to an embodiment of the present invention. As shown in FIG. 12, the admission limiting device 1200 includes: A third receiving unit 1201 is included, which does not receive the first message related to admission control sent by the network device.

[0146] In one set of embodiments, the apparatus further comprises: A second sending unit 1202 is included, for sending a second message to the network device.

[0147] In one set of embodiments, after the second sending unit sends the second message, the third receiving unit does not receive the first message.

[0148] In one set of embodiments, the third receiving unit is further used for receiving a third message sent by the network device.

[0149] In one set of embodiments, the first message includes an RRC rejection message or an RRC release message.

[0150] In one set of embodiments, the second message includes an RRC establishment request message or an RRC recovery request message.

[0151] In one set of embodiments, the third message includes an RRC establishment message or an RRC recovery message.

[0152] The above embodiments are merely illustrative of the embodiments of the present application, and the present application is not limited thereto, and may be appropriately modified based on the above embodiments. For example, the above embodiments may be used alone, or one or more of the above embodiments may be combined.

[0153] It should be noted here that the above is merely a description of each member or module related to the present application, and the present application is not limited thereto. The admission limiting device 1100-1200 may further include other members or modules, and the specific contents of these members or modules may refer to the related art.

[0154] 11 and 12, only the connection relationship between each component or module or the direction of signal travel are shown as an example, but as will be obvious to those skilled in the art, various related technologies such as bus connection can also be adopted. Each of the above components or modules can be realized by hardware devices such as a processor, memory, transmitter, and receiver, and the embodiments of the present application are not limited thereto.

[0155] According to the above embodiment, the repeater ignores the first information contained in the first message related to admission control, and / or skips the first process related to admission control, and / or performs the second process related to admission control, so that the repeater does not need to be controlled by the existing admission control mechanism, and thus the network congestion can be alleviated and the allocation cost can be reduced.

[0156] Example of the fourth aspect In the present embodiment, an admission control device is provided, which can be, for example, a network device, or can be a certain member or component disposed in the network device, and the same contents as those in the second embodiment are not described in detail here.

[0157] FIG. 13 is a schematic diagram of an admission control device in an embodiment of the present invention. As shown in FIG. 13, the admission control device 1300 includes: A first sending unit 1301 for sending a first message related to admission control to a relay, the first message including first information, the first information being a specific value or the first message not including the first information; or A first sending unit 1301 is included, which sends a first message related to admission control to a relay.

[0158] In a series of embodiments, the first transmitting unit not sending a first message related to admission control to the repeater includes the first transmitting unit not sending an RRC rejection message to the repeater or not sending an RRC release message to the repeater.

[0159] In one set of embodiments, if the second condition is satisfied, the first sending unit sends a first message to the relay.

[0160] In one set of embodiments, the second condition includes extreme network load that may pose a threat to the stability of the network device.

[0161] In one set of embodiments, the first message includes an RRC rejection message or an RRC release message.

[0162] In one embodiment, the first message includes a RAR or a MSGB, and the first information includes backoff instruction related information.

[0163] In a series of embodiments, the RAR or MSGB does not include backoff indication related information, or includes backoff indication related information, and the value of the backoff indication field in the backoff indication related information is a specific value.

[0164] In one set of embodiments, the first sending unit sending the first message related to admission control to the repeater includes the network device sending an RRC reject message or an RRC release message to the repeater.

[0165] In one set of embodiments, the first information comprises a wait time.

[0166] In one set of embodiments, the RRC rejection message or the RRC release message does not include a waiting time, or includes a waiting time, and the value of the waiting time is zero.

[0167] In one set of embodiments, the first message includes SIB1, and the first information includes admission control parameters.

[0168] In one set of embodiments, the SIB1 includes admission control parameters.

[0169] In one set of embodiments, the admission control parameter is associated with an access class and / or an access ID, where the access class is a repeater specific access class and the access ID is a repeater specific access ID.

[0170] In one set of embodiments, the admission control parameter is a repeater specific admission control parameter.

[0171] In one set of embodiments, the repeater specific admission control parameters include a repeater specific inhibit factor and / or a repeater specific inhibit time, or a repeater specific ratio / factor.

[0172] FIG. 14 is a schematic diagram of an admission control device according to an embodiment of the present invention. As shown in FIG. 14, the admission control device 1400 includes: a second receiving unit 1401 for receiving a second message sent by the repeater; and a second processing unit 1402 for processing requests relating to the second message at a high priority level.

[0173] In one set of embodiments, the second processing unit processing the request related to the second message at a high priority level includes processing the access attempt of the relay at a high priority level.

[0174] In one set of embodiments, the relay sends the second message when attempting to establish a new connection in RRC idle state or when attempting to recover a connection from an RRC inactive state.

[0175] In one set of embodiments, the second message includes an RRC establishment request message or an RRC recovery request message.

[0176] In a series of embodiments, the embodiment of the first transmitting unit 1301 may refer to 801 or 901, and the embodiments of the second receiving unit 1401 and the second processing unit 1402 may refer to 1001 to 1002, so they will not be described in detail here.

[0177] The above embodiments are merely illustrative of the embodiments of the present application, and the present application is not limited thereto, and may be appropriately modified based on the above embodiments. For example, the above embodiments may be used alone, or one or more of the above embodiments may be combined.

[0178] It should be noted here that the above is merely a description of each member or module related to the present application, and the present application is not limited thereto. The admission control device 1300-1400 may further include other members or modules, and the specific contents of these members or modules may refer to the related art.

[0179] 13 and 14, only the connection relationship between each component or module or the direction of signal travel are shown as an example, but as will be obvious to those skilled in the art, various related technologies such as bus connection can also be adopted. Each of the above components or modules can be realized by hardware devices such as a processor, memory, transmitter, and receiver, and the embodiments of the present application are not limited thereto.

[0180] Example of the fifth aspect In the present embodiment, a communication system is further provided, and reference can be made to FIG. 1, and the same contents as those in the first to fourth embodiments will not be described in detail here.

[0181] In one set of embodiments, the communication system may include a repeater 1500, In one set of embodiments, the communication system may include a network device 1600 .

[0182] In the embodiment of the present application, a network device is further provided, which may be, for example, a base station, but the present application is not limited thereto and may be other network devices.

[0183] Fig. 15 is a schematic diagram of a network device in an embodiment of the present application. As shown in Fig. 15, the network device 1500 may include a processor 1510 (e.g., a central processing unit CPU) and a memory 1520, and the memory 1520 is coupled to the processor 1510. The memory 1520 may store various data, and may further store a program 1530 for processing information, and execute the program 1530 under the control of the processor 1510.

[0184] For example, the processor 1510 may be configured to execute a program to implement, for example, the admission restriction method described in the third embodiment.

[0185] 15, the network device 1500 may further include a transceiver 1540 and an antenna 1550, among which the functions of the above components are similar to those of the existing technology, and will not be described in detail here. It should be noted that the network device 1500 does not necessarily have to include all the components shown in FIG. 15, and the network device 1500 may further include components not shown in FIG. 15, and in this regard, the existing technology may be referred to.

[0186] In the embodiment of the present application, a repeater is further provided, but the present application is not limited thereto, and other devices, for example, terminal devices having the function of a repeater, may also be provided.

[0187] Fig. 16 is a schematic diagram of a repeater in an embodiment of the present application. As shown in Fig. 16, the repeater 1600 may include a processor 1610 and a memory 1620, in which data and programs are stored and coupled to the processor 1610. It should be noted that this is an exemplary diagram, and other types of structures may be used to supplement or replace the structures to achieve telecommunication functions or other functions.

[0188] For example, the processor 1610 may be configured to execute a program to implement, for example, the admission restriction method described in the first embodiment.

[0189] As shown in Fig. 16, the repeater 1600 may further include a communication module 1630, an input unit 1640, a display 1650, and a power supply 1660. The functions of the above components are similar to those of the existing technology, and will not be described in detail here. It should be noted that the repeater 1600 does not necessarily have to include all the components shown in Fig. 16, and the above components are not essential, and the repeater 1600 may further include components not shown in Fig. 16, and in this regard, the existing technology may be referred to.

[0190] In this embodiment of the present application, a computer program is further provided, which, when executed in a repeater, causes the repeater to execute the admission restriction method described in the embodiment of the first aspect.

[0191] In the present embodiment, a storage medium is further provided on which a computer program is stored, the computer program causing the repeater to perform the admission restriction method described in the first embodiment.

[0192] In this embodiment of the present application, a computer program is further provided, which, when executed in a repeater, causes the repeater to execute the admission restriction method described in the second embodiment.

[0193] In the present embodiment, a storage medium is further provided on which a computer program is stored, the computer program causing the repeater to perform the admission restriction method described in the second embodiment.

[0194] The above-mentioned apparatus and method of the present application can be realized by hardware, or can be realized by combining software with hardware. Such computer-readable programs mentioned in the present application, when executed by a logic element, can cause the logic element to realize the apparatus or components described in the above text, or cause the logic element to realize various methods or steps described in the above text. The storage medium for storing the above-mentioned programs further mentioned in the present application can be, for example, a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, etc.

[0195] The methods / apparatuses described in the embodiments of the present application may be directly embodied in hardware, software modules executed by a processor, or a combination of both. For example, one or more of the functional block diagrams shown in the drawings and / or one or more combinations of the functional block diagrams may correspond not only to each software module in a computer program flow, but also to each hardware module. The software modules may correspond to each step shown in the drawings. The hardware modules may be realized by farming the software modules using, for example, a field programmable gate array (FPGA).

[0196] The software module may be a storage medium located in a RAM memory, a flash memory, a ROM memory, an EPROM memory, an EEPROM memory, a register, a hard disk, a mobile magnetic disk, a CD-ROM, or any other form known in the art. When a storage medium is coupled to a processor, the processor can read information from the storage medium and write information to the storage medium, or the storage medium can be a part of the processor. The processor and the storage medium can be located in an ASIC. The software module can be stored in the memory of a mobile terminal, or in a memory card that can be inserted into a mobile terminal. For example, if a device (e.g., a mobile terminal) employs a relatively large capacity MEGA-SIM card or a large capacity flash memory device, the software module can be stored in the MEGA-SIM card or the large capacity flash memory device.

[0197] One or more of the functional blocks and / or one or more combinations of functional blocks depicted in the accompanying drawings may be implemented as a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, or any suitable combination thereof to perform the functions described herein. One or more of the functional blocks and / or one or more combinations of functional blocks depicted in the accompanying drawings may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors coupled to a DSP communicating, or any other such arrangement.

[0198] Although the present application has been described above based on specific embodiments, those skilled in the art can understand that the descriptions are merely illustrative and do not limit the scope of protection of the present application. Those skilled in the art can make various modifications and alterations to the present application according to the spirit and principles of the present application, and these modifications and alterations are also included in the scope of the present application.

[0199] Regarding the embodiments including the above examples, the following supplementary notes have been published.

[0200] (Appendix 1) 1. An admission control method applied to a repeater, comprising: receiving, by the relay, a first message relating to admission control, the first message including or not including first information; The repeater ignores the first information, and / or skips a first process related to the admission control, and / or performs a second process related to the admission control.

[0201] (Appendix 2) The method of claim 1, wherein the first message includes an RAR or an MSGB, and the first information includes backoff instruction related information.

[0202] (Appendix 3) The method described in Supplementary Note 2, wherein the RAR or MSGB does not include backoff instruction related information, or includes backoff instruction related information, and the value of a backoff instruction field in the backoff instruction related information is a specific value.

[0203] (Appendix 4) The method of claim 2, wherein the RAR or MSGB includes backoff instruction related information.

[0204] (Appendix 5) The method of claim 4, wherein the repeater ignoring a value of a backoff instruction field in the backoff instruction related information and / or skipping the first processing related to the admission control includes setting PREAMBLE_BACKOFF to 0.

[0205] (Appendix 6) 3. The method of claim 2, wherein if the relay does not successfully receive the first message related to admission control, the relay skips the first processing related to admission control.

[0206] (Appendix 7) The method of claim 6, wherein if the repeater does not successfully receive a first message related to admission control, the repeater skips the first processing related to admission control, and if the RAR is not successfully received and a random access procedure is not completed, the repeater performs a random access resource selection procedure.

[0207] (Appendix 8) If the RAR is not successfully received, If the random access response reception time window configured in the beam failure recovery configuration is exceeded and the serving cell transmitting the random access preamble code does not receive a PDCCH transmission on the search space addressed by the cell radio network temporary identifier and indicated by the recovery search space identifier for monitoring the response to the beam failure recovery request, or If the random access response reception time window configured in the random access public configuration is exceeded and no RAR containing a random access preamble code matching the transmitted random access preamble index PREAMBLE_INDEX is received, or If the random access response reception time window has expired and the random access response reception has not yet been recognized as successful and the MSGA maximum transmission count msgA-TransMax does not apply or the random access preamble transmission count counter PREAMBLE_TRANSMISSION_COUNTER is not equal to the MSGA maximum transmission count msgA-TransMax+1, The method described in Appendix 7, including where competitive resolution is perceived to be unsuccessful.

[0208] (Appendix 9) 2. The method of claim 1, wherein the first message includes an RRC rejection message or an RRC release message, and the first information includes a waiting time.

[0209] (Appendix 10) 10. The method of claim 1 or 9, wherein the repeater ignoring the waiting time and / or skipping the first process related to the admission control includes determining a waiting time to be zero.

[0210] (Appendix 11) 10. The method of claim 9, wherein the RRC rejection message or the RRC release message does not include a waiting time or includes a waiting time, and the value of the waiting time is 0.

[0211] (Appendix 12) 2. The method of claim 1, wherein the first message includes SIB1 and the first information includes admission control parameters.

[0212] (Appendix 13) 13. The method of claim 12, wherein the SIB1 includes the admission control parameters.

[0213] (Appendix 14) 14. The method of claim 1, 12 or 13, wherein the relay ignoring the admission control parameters and / or skipping the first processing related to the admission control includes the relay skipping a unified access control process.

[0214] (Appendix 15) The method further comprises: If a first condition is satisfied, the RRC layer of the relay skips a unified access control procedure; The first condition includes: When performing an RRC connection establishment procedure and the higher layers have provided an access class and one or more access ID(s) when requesting the RRC connection establishment, or When performing an RRC connection restoration procedure, and the restoration of the RRC connection is initiated in response to an NG-RAN call, or When performing an RRC connection restoration procedure, and the restoration of the RRC connection is initiated by an upper layer, and the upper layer provides an access class and one or more access ID(s), The method of claim 14, further comprising: performing an RRC connection recovery process; and wherein the recovery of the RRC connection is stimulated by updating an RNA.

[0215] (Appendix 16) The method of claim 15, wherein the repeater skipping the first process related to the admission control further includes the repeater's RRC layer selecting 0 as an access class or the repeater not determining an access class.

[0216] (Appendix 17) The method further comprises: The RRC layer of the relay determines an access class and an access ID; or The upper layer of the relay does not provide the lower layer with an access class and an access ID, but provides an RRC establishment cause; or 15. The method of claim 14, comprising: an upper layer of the repeater providing an access ID to be used in an access attempt determined by a lower layer.

[0217] (Appendix 18) 14. The method of claim 13, wherein the admission control parameter is associated with an access class and / or an access ID, the access class being a repeater-specific access class and the access ID being a repeater-specific access ID.

[0218] (Appendix 19) 14. The method of claim 13, wherein the admission control parameter is a repeater specific admission control parameter.

[0219] (Appendix 20) 20. The method of claim 19, wherein the repeater specific admission control parameters include a repeater specific inhibit factor and / or a repeater specific inhibit time, or a repeater specific ratio / factor.

[0220] (Appendix 21) 20. The method of claim 13, 14, 18 or 19, wherein the repeater performing a second process related to the admission control includes the repeater using the admission control parameters to perform a unified access control process.

[0221] (Appendix 22) 22. The method according to any one of appendixes 1 to 21, wherein the repeater is a network-controlled repeater.

[0222] (Appendix 23) An admission control method applied to a network device, comprising: The network device transmits a first message related to admission control to a repeater, the first message including first information, the first information being a specific value, or the first message not including the first information; or The network device does not transmit a first message related to admission control to a repeater; or The admission control method includes receiving a second message sent by a repeater by the network device, and processing a request related to the second message with a high priority level by the network device.

[0223] (Appendix 24) 24. The method of claim 23, wherein the first message includes an RRC rejection message or an RRC release message.

[0224] (Appendix 25) 25. The method of claim 23 or 24, wherein the network equipment not sending the first message regarding admission control to the repeater comprises the network equipment not sending an RRC rejection message to the repeater or not sending an RRC release message to the repeater.

[0225] (Appendix 26) 25. The method of claim 23 or 24, wherein the network device processing the request for the second message with a high priority level includes processing the access attempt of the repeater with a high priority level.

[0226] (Appendix 27) 27. The method of claim 26, wherein if a second condition is satisfied, the network device sends a first message to the repeater.

[0227] (Appendix 28) 28. The method of claim 27, wherein the second condition includes extreme network load that may pose a threat to the stability of the network device.

[0228] (Appendix 29) The method according to any one of Supplementary Note 23 or 26 to 28, wherein the repeater sends the second message when attempting to establish a new connection in an RRC idle state or when attempting to recover a connection from an RRC inactive state.

[0229] (Appendix 30) 30. The method of claim 29, wherein the second message includes an RRC establishment request message or an RRC recovery request message.

[0230] (Appendix 31) 24. The method of claim 23, wherein the first message includes an RAR or an MSGB, and the first information includes backoff instruction related information.

[0231] (Appendix 32) The method according to claim 31, wherein the RAR or MSGB does not include backoff instruction related information, or includes backoff instruction related information, and the value of a backoff instruction field in the backoff instruction related information is a specific value.

[0232] (Appendix 33) 25. The method of claim 23 or 24, wherein the network equipment sending a first message related to admission control to the repeater includes the network equipment sending an RRC reject message or an RRC release message to the repeater.

[0233] (Appendix 34) 34. The method of claim 23, 24 or 33, wherein the first information includes a waiting time.

[0234] (Appendix 35) 35. The method of claim 34, wherein the RRC rejection message or the RRC release message does not include a waiting time or includes a waiting time and the value of the waiting time is 0.

[0235] (Appendix 36) 24. The method of claim 23, wherein the first message includes SIB1 and the first information includes admission control parameters.

[0236] (Appendix 37) 37. The method of claim 36, wherein the SIB1 includes admission control parameters.

[0237] (Appendix 38) 38. The method of claim 37, wherein the admission control parameter is associated with an access class and / or an access ID, the access class being a repeater-specific access class and the access ID being a repeater-specific access ID.

[0238] (Appendix 39) 38. The method of claim 37, wherein the admission control parameter is a repeater specific admission control parameter.

[0239] (Appendix 40) 40. The method of claim 39, wherein the repeater specific admission control parameters include a repeater specific inhibit factor and / or a repeater specific inhibit time, or a repeater specific ratio / factor.

[0240] (Appendix 41) 1. An admission control method applied to a repeater, comprising: 13. The method of claim 12, further comprising the step of: the repeater not receiving a first message regarding admission control transmitted by a network device.

[0241] (Appendix 42) The method further comprises: 42. The method of claim 41, further comprising the repeater sending a second message to the network device.

[0242] (Appendix 43) 43. The method of claim 42, wherein the relay does not receive the first message after the relay sends a second message to the network device.

[0243] (Appendix 44) The method further comprises: 44. The method of claim 41, 42 or 43, comprising the repeater receiving a third message sent by the network device.

[0244] (Appendix 45) 45. The method according to any one of claims 41 to 44, wherein the first message comprises an RRC rejection message or an RRC release message.

[0245] (Appendix 46) 45. The method according to any one of Supplementary Notes 42 to 44, wherein the second message comprises an RRC establishment request message or an RRC recovery request message.

[0246] (Appendix 47) 47. The method according to any one of claims 44 to 46, wherein the third message comprises an RRC establishment message or an RRC recovery message.

[0247] (Appendix 48) A network device comprising a memory and a processor, the memory storing a computer program, the processor being configured to execute the computer program to implement an admission restriction method according to any one of appendices 23 to 40.

[0248] (Appendix 49) A repeater comprising a memory and a processor, the memory storing a computer program, the processor being arranged to execute the computer program to realise a method according to any one of appendices 1 to 22 and 41 to 47.

[0249] (Appendix 50) A communication system including a repeater as described in Appendix 49 and / or a network device as described in Appendix 48.

Claims

1. An admission control device applied to a repeater, comprising: a first receiving unit for receiving a first message related to admission control, the first message including or not including first information; a first processing unit that ignores the first information and / or skips a first process related to the admission control and / or executes a second process related to the admission control.

2. The apparatus of claim 1 , wherein the first message includes a RAR or a MSGB, and the first information includes backoff indication related information.

3. The apparatus according to claim 2 , wherein the RAR or MSGB does not include backoff instruction related information, or includes backoff instruction related information, and a value of a backoff instruction field in the backoff instruction related information is a specific value.

4. The apparatus of claim 2 , wherein the RAR or MSGB includes backoff indication related information.

5. 5. The apparatus of claim 4, wherein the first processing unit ignores a backoff indication field in the backoff indication related information and / or skips the first processing related to the admission control, comprising setting PREAMBLE_BACKOFF to 0.

6. The apparatus of claim 2 , wherein if the first receiving unit does not successfully receive the first message related to admission control, the first processing unit skips the first processing related to admission control.

7. The apparatus of claim 6 , wherein if the first receiving unit does not successfully receive the RAR, and if a random access procedure is not accomplished, the first processing unit performs a random access resource selection procedure.

8. The apparatus of claim 1 , wherein the first message comprises an RRC rejection message or an RRC release message, and the first information comprises a waiting time.

9. The apparatus of claim 8 , wherein the RRC rejection message or the RRC release message does not include a waiting time, or includes a waiting time, and a value of the waiting time is zero.

10. The apparatus of claim 1 , wherein the first message includes SIB1 and the first information includes admission control parameters.

11. 2. The apparatus of claim 1, wherein the first processing unit ignoring the admission control parameters and / or skipping the first processing relating to the admission control includes the first processing unit skipping a unified access control process.

12. The first processing unit further comprises: Used to determine the access class or access ID in the RRC layer, or It does not provide the access class and access ID to the lower layer at the upper layer, but is used to provide the RRC establishment cause, or The apparatus of claim 11, adapted to provide an access ID for use in an access attempt established at an upper layer towards a lower layer.

13. The apparatus of claim 10, wherein the admission control parameters are associated with an access class and / or an access ID, the access class being a repeater specific access class and the access ID being a repeater specific access ID.

14. The apparatus of claim 10 , wherein the admission control parameter is a repeater specific admission control parameter.

15. The apparatus of claim 14, wherein the repeater specific admission control parameters include a repeater specific inhibit factor and / or a repeater specific inhibit time, or a repeater specific ratio / factor.

16. The apparatus of claim 10 , wherein the first processing unit performs a second process related to the admission control including the processor performing a unified access control process using the admission control parameters.

17. The apparatus of claim 1 , wherein the repeater is a network-controlled repeater.

18. An admission control device applied to a network device, comprising: a first transmission unit for transmitting a first message related to admission control toward a repeater, the first message including first information, the first information being a specific value or the first message not including the first information; or a first transmitting unit for not transmitting a first message related to admission control towards the repeater; or The apparatus comprises: a second receiving unit for receiving a second message transmitted by the repeater; a second processing unit for processing requests relating to said second message at a high priority level.

19. 20. The apparatus of claim 18, wherein the first transmission unit not transmitting a first message related to admission control toward the repeater comprises the first transmission unit not transmitting an RRC rejection message toward the repeater or not transmitting an RRC release message toward the repeater.

20. 20. The apparatus of claim 18, wherein the second processing unit processing the request for the second message at a high priority level comprises processing an access attempt of the repeater at a high priority level.

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