WO2011157113A2 - Method for allocating channels, base station equipment, controller and communication system - Google Patents

Method for allocating channels, base station equipment, controller and communication system Download PDF

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Publication number
WO2011157113A2
WO2011157113A2 PCT/CN2011/074897 CN2011074897W WO2011157113A2 WO 2011157113 A2 WO2011157113 A2 WO 2011157113A2 CN 2011074897 W CN2011074897 W CN 2011074897W WO 2011157113 A2 WO2011157113 A2 WO 2011157113A2
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WO
WIPO (PCT)
Prior art keywords
channel
base station
channel resource
authorization
terminal device
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Application number
PCT/CN2011/074897
Other languages
French (fr)
Chinese (zh)
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WO2011157113A3 (en
Inventor
柳军
周彧
江贝
胡小群
Original Assignee
华为技术有限公司
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201180001651.7A priority Critical patent/CN102301810B/en
Priority to PCT/CN2011/074897 priority patent/WO2011157113A2/en
Publication of WO2011157113A2 publication Critical patent/WO2011157113A2/en
Publication of WO2011157113A3 publication Critical patent/WO2011157113A3/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W12/00Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/10Integrity
    • H04W12/106Packet or message integrity
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/06Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA
    • H04W74/0833Random access procedures, e.g. with 4-step access

Definitions

  • Embodiments of the present invention relate to the field of wireless communications, and more particularly, to a method of allocating a channel, a base station apparatus, a controller, and a communication system. Background technique
  • the satellite communication will be transmitted relative to the ground, and the signaling transmission delay will increase greatly. If the channel of communication contains satellite communication channels, the communication delay will be larger than when transmitting on the ground.
  • GSM Global System of Mobile communication
  • BTS Base Transceiver Station
  • BSC Base Station Controller
  • the time between sending a channel request message from the MS (Mobile Station; mobile station) to receiving the immediate assignment message is long. And may exceed the timing of the relevant timer (timeout), causing the MS to resend the channel request.
  • the BSC cannot recognize that the two channel requests are sent by the same MS, and will re-allocate a channel resource for the MS. After the MS receives two immediate assignment messages, it will only respond to one of them, that is, it will only occupy One of the channels. Other repeatedly allocated channel resources need to wait for a period of time before releasing. During this time, these channels cannot be allocated to other MSs, causing waste of these channel resources.
  • Embodiments of the present invention provide a method for allocating a channel, a base station device, a controller, and a communication system, Can improve wireless channel utilization.
  • a method for allocating a channel including: requesting a channel resource from a controller; receiving a channel resource grant allocated by a controller; receiving a channel request message of the terminal device; and assigning the terminal device according to the channel request message and the channel resource grant channel.
  • a method for allocating a channel including: receiving a request for a channel resource by a base station device before a random access procedure; and assigning a channel resource grant to the base station device according to a request for a channel resource, so that the base station device is in a random manner
  • the channel is allocated according to the channel resource authorization during the access process.
  • a base station device including: an application unit, configured to apply for a channel resource to a controller; an authorization receiving unit, configured to receive a channel resource authorization allocated by the controller; and a request receiving unit, configured to receive the terminal device a channel request message; an allocating unit, configured to allocate a channel to the terminal device according to the channel request message and the channel resource grant.
  • a controller including: an application receiving unit, configured to receive a request for a channel resource by a base station device before a random access procedure; and an authorization unit, configured to allocate a channel resource to the base station device according to the application of the channel resource Authorization, so that the channel is allocated by the base station device according to the channel resource grant during the random access procedure.
  • a communication system including the aforementioned base station device or the aforementioned controller.
  • the embodiment of the present invention separates the wireless channel resource use authorization process and the random access process into two independent processes, that is, performs a channel allocation process before the random access process, thereby avoiding delay caused by the random access process.
  • the case where the channel is allocated but not used by the terminal device solves the problem of resource waste and improves the utilization of the wireless resource.
  • 1 is a schematic flow chart of a random access procedure according to the 3GPP specifications.
  • FIG. 2 is a schematic flow chart of a method of allocating channels according to an embodiment of the present invention.
  • FIG. 3 is a schematic flow chart of a method of allocating channels according to an embodiment of the present invention.
  • FIG. 4 is a schematic flow chart of an example of a channel allocation process in accordance with an embodiment of the present invention.
  • FIG. 5 is a schematic flow chart of another example of a channel allocation process according to an embodiment of the present invention.
  • FIG. 6 is a schematic block diagram of a base station device according to an embodiment of the present invention.
  • FIG. 7 is a schematic block diagram of a base station device according to another embodiment of the present invention.
  • FIG. 8 is a schematic block diagram of a base station controller in accordance with an embodiment of the present invention. detailed description
  • GSM code division multiple access
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • LTE Long Term Evolution
  • a terminal device which may also be called a mobile terminal, a user equipment (UE, a user equipment), a mobile user equipment, etc., may be connected to one or more cores via a radio access network (eg, RAN, Radio Access Network)
  • the network communicates, and the terminal device can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal, for example, a mobile device that can be portable, pocket, handheld, computer built, or in-vehicle. They exchange language and/or data with the radio access network.
  • the base station may be a base station in GSM or CDMA (BTS, Base Transceiver)
  • GSM Global System for Mobile communications
  • CDMA Base Transceiver
  • the station may be a base station (NodeB) in WCDMA, or may be an evolved base station (eNB or e-NodeB, evolved Node B) in LTE, which is not limited in the present invention.
  • NodeB base station
  • eNB evolved base station
  • e-NodeB evolved Node B
  • the controller may be a base station controller (BSC, Base Station Controller) in GSM or CDMA, or may be a radio network controller (RNC) in WCDMA, which is not limited in the present invention.
  • BSC Base Station Controller
  • RNC radio network controller
  • the method of the embodiment of the present invention is described below by taking a network element such as a BTS and a BSC of the GSM system as an example, but the embodiment of the present invention is not limited thereto.
  • FIG. 1 is a schematic flow diagram of a random access procedure 10 in accordance with the 3GPP specifications.
  • the MS sends a CHANNEL REQUEST message. Start the T3120 timer at the same time to wait for a response (immediate assignment or immediate assignment rejection).
  • the BTS After receiving the CHANNEL REQUEST message, the BTS supplements additional information such as TA (Timing Advance) and sends a CHANNEL REQUIRED message to the BSC.
  • TA Timing Advance
  • the BSC allocates the appropriate channel resources and sends CHANNEL to the BTS.
  • the ACTIVATION message informs the BTS to prepare for the allocated channel resources.
  • the BTS After the BTS has prepared the corresponding resources, it sends a CHANNEL ACTIVATION ACKNOWLEDGE message to the BSC for confirmation.
  • the BSC After receiving the BTS acknowledgement message, the BSC sends an IMMEDIATE ASSIGNMENT message to the MS to inform the MS to use the dedicated channel (that is, the channel resource allocated by the BSC).
  • the T3101 timer is started to wait for the MS to send the layer 3 service request.
  • the MS After receiving the IMMEDIATE ASSIGNMENT, the MS decodes and confirms that the message corresponds to one of the CHANNEL REQUEST messages sent by the last three times, stops the T3120 timer, and sends SABM (Set Asynchronous Balanced Mode) on the dedicated channel. Balanced mode) frame, the SABM frame contains layer 3 service request information.
  • SABM Set Asynchronous Balanced Mode
  • the BTS After receiving the SABM frame, the BTS, after decoding, parses the layer 3 service request information in the ESTABLISH INDICATION message and sends it to the BSC. After receiving the ESTABLISH INDICATION message, the BSC stops the T3101 timer and the random access succeeds.
  • the MS determines whether the number of CHANNEL REQUESTs sent has exceeded the maximum number of retransmissions of the channel request, and then performs different processing according to the result: (i) if the maximum number of retransmissions of the channel request is not exceeded, The MS resends the CHANNEL REQUEST message and restarts the T3120. (ii) If the maximum number of retransmissions has been reached, the MS starts T3126. If the network response is not received after the T3126 times out, the request is aborted and the random access fails.
  • the BSC In the random access procedure, if the T3101 timer expires, the BSC notifies the BTS to release the allocated channel resources and clear the associated access information.
  • the MS After receiving the IMMEDIATE ASSIGNMENT, the MS will only respond to one of them, that is, it will only occupy one of the channels. Other repeatedly allocated channel resources need to wait until the T3101 times out, during which time these channels cannot be allocated to other MSs, causing waste of these channel resources.
  • Method 20 is a schematic flow diagram of a method 20 of allocating channels in accordance with an embodiment of the present invention.
  • Method 20 can be performed by a base station device, such as a BTS.
  • a channel resource is requested from a controller (such as a BSC).
  • the channel resource authorization assigned by the controller is received.
  • a channel request message of the terminal device e.g., MS
  • a channel request message of the terminal device e.g., MS
  • a channel is allocated to the terminal device according to the channel request message and the channel resource grant.
  • the embodiment of the present invention separates the wireless channel resource use authorization process and the random access procedure into two independent processes, that is, performs a channel allocation process (S22-S24) before the random access procedure (S26-S28), and thus random access
  • S22-S24 performs a channel allocation process
  • S26-S28 random access procedure
  • the delay outside the process does not cause the channel to be allocated but not used by the terminal device, thereby solving the problem of resource waste and improving the utilization of the wireless resource.
  • Method 30 is a schematic flow diagram of a method 30 of allocating channels in accordance with an embodiment of the present invention.
  • Method 30 can be performed by a controller such as a BSC.
  • Method 30 corresponds to method 20 of FIG.
  • the base station device receives the application for the channel resource before the random access procedure, and then, at S34, allocates the channel resource authorization to the base station device according to the application of the channel resource, so as to facilitate The channel is allocated by the base station device according to the channel resource grant in the random access procedure.
  • the embodiment of the present invention separates the radio channel resource use authorization process and the random access procedure into two independent processes, that is, performs a channel allocation process before the random access procedure, so the delay outside the random access procedure does not cause the channel.
  • the situation is allocated but not used by the terminal device, thereby solving the problem of resource waste and improving the utilization of wireless resources.
  • FIG. 4 is a schematic flow diagram of a channel allocation process 40 in accordance with an embodiment of the present invention.
  • the channel allocation process 40 involves three network elements MS, BTS and BSC.
  • the same or similar processes are denoted by the same reference numerals.
  • the BTS collectively applies for channel resources to the BSC after startup.
  • the BTS does not need to request channel resources from the BSC again, and directly applies before applying.
  • the resources arrived are allocated to the MS for use.
  • the BTS may apply for a new grant to the BSC again for subsequent MS access.
  • the channel allocation process 40 can be divided into two independent processes, a radio resource use authorization process S4a-S4c (and S4a, -S4c if necessary) and a random access process S41-S44.
  • the BTS initiates a resource request through the channel resource request message (CHANNEL RESOURCE REQUEST) to request the BSC to perform channel allocation authorization.
  • S4a may correspond to S22 of Fig. 2 and S32 of Fig. 3, respectively, as described above.
  • the BSC After receiving the channel resource request of the BTS, the BSC grants a part of the channel resource to the BTS according to the request, and sends a CHANNEL RESOURCE AUTHORIZATION message to the BTS in response to the BTS to notify the BTS that the authorized resource information has been obtained.
  • the channel resource grant may include authorization for multiple channels.
  • S4b may correspond to S24 of Fig. 2 above and S34 of Fig. 3.
  • the BTS sends a CHANNEL RESOURCE AUTHORIZATION ACKNOWLEDGE message to the BSC to complete the channel resource application and authorization process.
  • S4a, - S4c is a special processing procedure of the authorization process.
  • the BTS may apply for additional authorization and apply for a new authorization to the BSC again. For subsequent MS access.
  • the BTS may re-initiate the BSC.
  • Resource request (CHANNEL RESOURCE REQUEST), requesting additional authorization from BSC.
  • the BSC determines whether it is possible to continue to grant additional authorization to the BTS based on the BTS request and the channel allocation policy. If additional authorization is allowed, a BTS is sent a CHANNEL RESOURCE AUTHORIZATION response to inform the BTS that the authorized resource information has been obtained. If the authorization is not allowed to be added to the BTS, a reject message is sent.
  • the BTS After receiving the authorization confirmation information, the BTS sends a CHANNEL RESOURCE AUTHORIZATION ACKNOWLEDGE message to the BSC to complete the channel resource addition request and authorization process.
  • S41 the MS sends a CHANNEL REQUEST message, At the same time start the T3120 timer and wait for a response (immediate assignment or immediate assignment rejection).
  • S41 may correspond to S26 of FIG. 2 above, and may be similar to S11 of FIG.
  • the BTS After receiving the CHANNEL REQUEST message, the BTS checks the channel usage of the authorized use and allocates the appropriate channel to the MS from the channel used for authorization.
  • the suitable channel is the dedicated channel of the MS.
  • the BTS sends an IMMEDIATE ASSIGNMENT message to the MS to inform the MS to use the dedicated channel.
  • the T3101 timer is started to wait for the MS to send a SABM frame.
  • the MS After receiving the IMMEDIATE ASSIGNMENT, the MS decodes and confirms that the message corresponds to one of the CHANNEL REQUEST messages sent by the last 3 times, stops the T3120 timer, and sends the SABM frame on the dedicated channel (including the layer 3 service request). information).
  • S43 is similar to S16 of Fig. 1.
  • the BTS After receiving the SABM frame, the BTS, after decoding, wraps the layer 3 service request information and the information (such as the resource ID) of the channel (dedicated channel) occupied by the MS in the CHANNEL REQUEST REPORT message. Send to the BSC, and stop the T3101 timer, the random access process is successful.
  • the random access procedures of S41-S44 may be repeated, and the respective dedicated channels are allocated to the MSs.
  • the MS determines whether the number of CHANNEL REQUESTs sent has exceeded the maximum number of retransmissions of the channel request, and performs different processing according to the result: (i) if not exceeded If the channel requests the maximum number of retransmissions, the MS resends the CHANNEL REQUEST message and restarts T3120. (ii) If the maximum number of retransmissions has been reached, the MS starts T3126. If the network response is not received after the T3126 times out, the request is abandoned and the random access fails.
  • the BTS releases the allocated channel resources and clears the associated access information.
  • the embodiment of the present invention performs the radio channel resource authorization process between the BSC and the BTS before the random access procedure (that is, the process in which the MS sends the CHANNEL REQUEST message to the BSC to receive the corresponding layer 3 service request), thereby avoiding randomization.
  • the channel caused by the delay outside the access process is allocated but not used by the terminal device, thereby solving the problem of resource waste and improving the utilization of the wireless resource.
  • the method of Figure 1 may cause T3120 to time out multiple times, and random access eventually fails.
  • the embodiment of FIG. 4 puts the signaling processing delivered through the satellite transmission link outside the random access procedure, reducing the time between when the MS sends the CHANNEL REQUEST message to the receipt of the IMMEDIATE ASSIGNMENT message, and does not cause the T3120 to time out. And the MS repeatedly initiates the request and repeatedly allocates channel resources to the MS, thereby improving the utilization of the radio resources.
  • FIG. 4 is a schematic flow diagram of a channel allocation process 50 in accordance with another embodiment of the present invention.
  • the BSC authorizes the resources of one channel to the BTS each time.
  • the channel allocation process 50 is also divided into two separate processes: radio resource usage authorization process S51-S52 and random access process S53-S56.
  • the BTS After the BTS is started, it applies for a channel resource to the BSC. Therefore, in the subsequent random access process, the BTS does not need to request the channel resource from the BSC again, and directly allocates the previously applied resource to the MS. After the random access of the MS is successful, the BTS again applies for a channel resource to the BSC for the next random access.
  • the BTS initiates a resource request to the BSC by using a CHANNEL RESOURCE REQUEST message, requesting the BSC to perform channel allocation authorization.
  • the BTS applies for authorization of only one channel in S51.
  • the BSC allocates a channel resource grant to the BTS according to the request, and sends a response message (CHANNEL RESOURCE AUTHORIZATION) to the BTS to notify the BTS that the authorized resource information has been obtained.
  • a response message (CHANNEL RESOURCE AUTHORIZATION)
  • the MS sends a CHANNEL REQUEST message to the BTS, and simultaneously starts the T3120 timer, waiting for a response (immediate assignment or immediate assignment rejection).
  • the BTS allocates the channel used by the BSC authorization (ie, the dedicated channel of the MS) to the MS, and sends an IMMEDIATE ASSIGNMENT message to the MS, informing the MS to use the dedicated channel.
  • start T3101 timing The device waits for the MS to send a SABM frame.
  • the MS After receiving the IMMEDIATE ASSIGNMENT, the MS decodes and confirms that the message corresponds to one of the CHANNEL REQUEST messages sent by the last 3 times, stops the T3120 timer, and sends the SABM frame on the dedicated channel (including the layer 3 service request). information).
  • the BTS After receiving the SABM frame, the BTS, after decoding, wraps the layer 3 service request information and the channel occupied by the MS (ie, the dedicated channel of the MS) in a channel request report (CHANNEL REQUEST REPORT) message and sends the message to the BSC. And stop the T3101 timer, at which point the random access process is successful.
  • a channel request report CHANNEL REQUEST REPORT
  • the channel allocation process of S51-S56 can be repeated, and the respective dedicated channels are allocated to the MSs.
  • the MS determines whether the number of CHANNEL REQUESTs sent has exceeded the maximum number of retransmissions of the channel request, and performs different processing according to the result: (i) if not exceeded If the channel requests the maximum number of retransmissions, the MS resends the CHANNEL REQUEST message and restarts T3120. (ii) If the maximum number of retransmissions has been reached, the MS starts T3126. If the network response is not received after the T3126 times out, the request is abandoned and the random access fails.
  • the BTS releases the already allocated channel resources and clears the associated access information.
  • the radio channel resource use authorization process between the BSC and the BTS is performed before the random access procedure (that is, the process in which the MS sends a CHANNEL REQUEST message to the BSC to receive the corresponding layer 3 service request), and thus is randomly connected.
  • the delay outside the incoming process does not cause the channel to be allocated but not used by the terminal device, thereby solving the problem of resource waste and improving the utilization of the wireless resource.
  • the BTS in the embodiment of FIG. 5 does not need to predict the use of channel resources and determines the number of channel resources authorized for each application according to the prediction result, and only applies a fixed number each time (for example, one Authorization of channel resources.
  • FIG. 6 is a schematic block diagram of a base station device 60 in accordance with an embodiment of the present invention.
  • the base station device 60 includes an application unit 61, an authorization receiving unit 62, a request receiving unit 63, and an allocation unit 64.
  • the application unit 61 is configured to apply for a channel resource from the controller.
  • the authorization receiving unit 62 is configured to receive a channel resource authorization allocated by the controller.
  • the request receiving unit 63 is configured to receive a channel request of the terminal device Message.
  • the allocating unit 64 is configured to allocate a channel to the terminal device according to the channel request message and the channel resource grant.
  • the various parts of the base station apparatus 60 can perform the respective processes of Fig. 2, respectively, and will not be described again in order to avoid redundancy.
  • the embodiment of the present invention separates the radio channel resource use authorization process and the random access procedure into two independent processes, that is, performs a channel allocation process before the random access procedure, so the delay outside the random access procedure does not cause the channel.
  • the situation is allocated but not used by the terminal device, thereby solving the problem of resource waste and improving the utilization of wireless resources.
  • FIG. 7 is a base station device 70 in accordance with another embodiment of the present invention.
  • the base station device 70 also includes an application unit 61, an authorization receiving unit 62, a request receiving unit 63, and an allocating unit 64.
  • the application unit 61 of the base station device 70 can also apply for additional channel resource authorization to the base station controller when the channel resource grant has been exhausted.
  • the allocation unit 64 of the base station device 70 includes a selection module 71, a transmission module 72, and a timing module 73.
  • the selection module 71 is configured to select a dedicated channel allocated to the terminal device according to the channel request message and the channel resource grant.
  • the sending module 72 is configured to send an immediate assignment message to the terminal device to notify the terminal device of the allocated dedicated channel.
  • the timing module 73 is operative to activate the timer to wait for the SABM frame transmitted by the terminal device for the immediate assignment message.
  • the base station device 70 can also perform the corresponding processes performed by the BTS in Figs. 4 and 5, and will not be described again in order to avoid redundancy.
  • FIG. 8 is a schematic block diagram of a controller 80 in accordance with an embodiment of the present invention. As shown in FIG. 8, the controller 80 includes an application receiving unit 81 and an authorization unit 82.
  • the application receiving unit 81 is configured to receive an application of the base station device for channel resources.
  • the authorization unit 82 is configured to allocate a channel resource grant to the base station device according to the application of the channel resource, so that the base station device allocates the channel according to the channel resource grant.
  • the various parts of the base station controller 80 can respectively perform the respective processes of FIG. 3, and are not described again in order to avoid redundancy.
  • the embodiment of the present invention separates the radio channel resource use authorization process and the random access procedure into two independent processes, that is, performs a channel allocation process before the random access procedure, so the delay outside the random access procedure does not cause the channel.
  • the situation is allocated but not used by the terminal device, thereby solving the problem of resource waste and improving the utilization of wireless resources.
  • the application receiving unit 81 may be further configured to receive an application for granting an additional grant to the channel resource by the base station device.
  • the authorization unit 82 may be further configured to determine whether the pair is based on the additional authorization request and the channel allocation policy.
  • the base station device adds channel resource authorization.
  • the base station controller 80 can also perform the corresponding processes performed by the BSC in FIGS. 4 and 5, and will not be described again to avoid repetition.
  • the communication system may include the above-described base station devices 60, 70, or the above-described base station controller 80.
  • the disclosed systems, devices, and methods may be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed.
  • the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical, mechanical or otherwise.
  • the units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solution of the embodiment.
  • each functional unit in various embodiments of the present invention may be integrated into one processing unit
  • each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • the technical solution of the present invention may contribute to the prior art or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium.
  • a number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a removable hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like, which can store program codes. .

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Abstract

A method for allocating channels, a base station equipment, a controller and a communication system are provided in the embodiments of the present invention. Said method includes: applying to the controller for channel resource; receiving the channel resource authorization allocated by the controller; receiving channel request message from the terminal device; allocating channels to the terminal device according to the channel request message and the channel resource authorization. The embodiments of the present invention divide the authorization process of radio channel resource use and the random access process into two independent processes, i.e., performing channel allocation process ahead of the random access process, thus the delay except for the random access process will not cause the situation that the channels are allocated but not used by the terminal device, so that the embodiments of the present invention solve the problem of resource waste, and enhance the utilization ratio of radio resource.

Description

分配信道的方法、 基站设备、 控制器和通信*** 技术领域  Method for allocating channels, base station device, controller and communication system
本发明实施例涉及无线通信领域,并且更具体地,涉及分配信道的方法、 基站设备、 控制器和通信***。 背景技术  Embodiments of the present invention relate to the field of wireless communications, and more particularly, to a method of allocating a channel, a base station apparatus, a controller, and a communication system. Background technique
受带宽等条件限制, 卫星通信相对于地面传输, 信令传输时延会有较大 幅度的增加。 如果通信的通道中包含卫星通信的通道, 则通信时延会比地面 传输时要大。  Limited by the bandwidth and other conditions, the satellite communication will be transmitted relative to the ground, and the signaling transmission delay will increase greatly. If the channel of communication contains satellite communication channels, the communication delay will be larger than when transmitting on the ground.
GSM (全球移动通信***; Global System of Mobile communication ) 网 络中, 在某些地区, 由于自然条件或其它经济因素限制, 不适合铺设地面传 输。 因此, GSM 网络中某一段传输可能会采用卫星传输来代替地面传输, 例如在 BTS ( Base Transceiver Station; 基站收发台)和 BSC ( Base Station Controller; 基站控制器)之间的 Abis接口上采用卫星传输。 此时, GSM通 信信令经过这些卫星传输通道时,时延会增加。对于其它通信***,如 CDMA ( Code Division Multiple Access; 码分多址)和 UMTS ( Universal Mobile Telecommunications System; 通用移动通信***), 也可能存在这样的问题。  In the GSM (Global System of Mobile communication) network, in some areas, due to natural conditions or other economic factors, it is not suitable for laying ground transmission. Therefore, a certain transmission in the GSM network may use satellite transmission instead of terrestrial transmission, for example, satellite transmission on the Abis interface between BTS (Base Transceiver Station) and BSC (Base Station Controller). . At this point, the delay will increase as GSM communication signaling passes through these satellite transmission channels. Such problems may also exist for other communication systems such as CDMA (Code Division Multiple Access) and UMTS (Universal Mobile Telecommunications System).
当基站和控制器之间的接口传输时延较大时, 例如 Abis接口采用卫星 传输时, 从 MS ( Mobile Station; 移动台)发送信道请求消息到接收到立即 指配消息之间的时间较长, 并可能超出了相关定时器的定时时长(超时), 导致 MS会重发信道请求。 BSC无法识别两次信道请求是同一个 MS发送的, 会重新为该 MS分配一个信道资源, 而 MS收到两个立即指配消息后, 只会 响应其中的一个, 也就是说, 只会占用其中一个信道。 其它重复分配的信道 资源需要等待一段之间后才释放。 在此期间, 这些信道无法分配给其它 MS 使用, 造成这些信道资源的浪费。  When the interface transmission delay between the base station and the controller is large, for example, when the Abis interface uses satellite transmission, the time between sending a channel request message from the MS (Mobile Station; mobile station) to receiving the immediate assignment message is long. And may exceed the timing of the relevant timer (timeout), causing the MS to resend the channel request. The BSC cannot recognize that the two channel requests are sent by the same MS, and will re-allocate a channel resource for the MS. After the MS receives two immediate assignment messages, it will only respond to one of them, that is, it will only occupy One of the channels. Other repeatedly allocated channel resources need to wait for a period of time before releasing. During this time, these channels cannot be allocated to other MSs, causing waste of these channel resources.
由于无线频点资源(尤其是卫星传输信道资源)的稀缺性, 无线信道资 源比较宝贵, 因此希望无线信道资源利用率能尽可能高。 发明内容  Due to the scarcity of radio frequency resources (especially satellite transmission channel resources), wireless channel resources are more valuable, so it is desirable to have wireless channel resource utilization as high as possible. Summary of the invention
本发明实施例提供一种分配信道的方法、基站设备、控制器和通信***, 能够提高无线信道利用率。 Embodiments of the present invention provide a method for allocating a channel, a base station device, a controller, and a communication system, Can improve wireless channel utilization.
一方面, 提供了一种分配信道的方法, 包括: 向控制器申请信道资源; 接收控制器分配的信道资源授权; 接收终端设备的信道请求消息; 根据信道 请求消息和信道资源授权向终端设备分配信道。  In one aspect, a method for allocating a channel is provided, including: requesting a channel resource from a controller; receiving a channel resource grant allocated by a controller; receiving a channel request message of the terminal device; and assigning the terminal device according to the channel request message and the channel resource grant channel.
另一方面, 提供了一种分配信道的方法, 包括: 接收基站设备在随机接 入过程之前对信道资源的申请; 根据信道资源的申请向基站设备分配信道资 源授权, 以便于由基站设备在随机接入过程中根据信道资源授权分配信道。  In another aspect, a method for allocating a channel is provided, including: receiving a request for a channel resource by a base station device before a random access procedure; and assigning a channel resource grant to the base station device according to a request for a channel resource, so that the base station device is in a random manner The channel is allocated according to the channel resource authorization during the access process.
另一方面, 提供了一种基站设备, 包括: 申请单元, 用于向控制器申请 信道资源; 授权接收单元, 用于接收控制器分配的信道资源授权; 请求接收 单元, 用于接收终端设备的信道请求消息; 分配单元, 用于根据信道请求消 息和信道资源授权向终端设备分配信道。  In another aspect, a base station device is provided, including: an application unit, configured to apply for a channel resource to a controller; an authorization receiving unit, configured to receive a channel resource authorization allocated by the controller; and a request receiving unit, configured to receive the terminal device a channel request message; an allocating unit, configured to allocate a channel to the terminal device according to the channel request message and the channel resource grant.
另一方面, 提供了一种控制器, 包括: 申请接收单元, 用于接收基站设 备在随机接入过程之前对信道资源的申请; 授权单元, 用于根据信道资源的 申请向基站设备分配信道资源授权, 以便于由基站设备在随机接入过程中根 据信道资源授权分配信道。  In another aspect, a controller is provided, including: an application receiving unit, configured to receive a request for a channel resource by a base station device before a random access procedure; and an authorization unit, configured to allocate a channel resource to the base station device according to the application of the channel resource Authorization, so that the channel is allocated by the base station device according to the channel resource grant during the random access procedure.
另一方面, 提供了一种通信***, 包括前述基站设备或前述控制器。 本发明实施例将无线信道资源使用授权过程和随机接入过程分离为两 个独立过程, 即, 在随机接入过程之前执行信道分配过程, 因此避免了随机 接入过程之外的时延引起的信道被分配但不被终端设备使用的情况,从而解 决了资源浪费问题, 提高了无线资源利用率。 附图说明  In another aspect, a communication system is provided, including the aforementioned base station device or the aforementioned controller. The embodiment of the present invention separates the wireless channel resource use authorization process and the random access process into two independent processes, that is, performs a channel allocation process before the random access process, thereby avoiding delay caused by the random access process. The case where the channel is allocated but not used by the terminal device solves the problem of resource waste and improves the utilization of the wireless resource. DRAWINGS
为了更清楚地说明本发明实施例的技术方案, 下面将对实施例或现有技 术描述中所需要使用的附图作筒单地介绍, 显而易见地, 下面描述中的附图 仅仅是本发明的一些实施例, 对于本领域普通技术人员来讲, 在不付出创造 性劳动性的前提下, 还可以根据这些附图获得其它的附图。  In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings to be used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only the present invention. For some embodiments, other drawings may be obtained from those skilled in the art without departing from the drawings.
图 1是根据 3GPP规范的随机接入过程的示意流程图。  1 is a schematic flow chart of a random access procedure according to the 3GPP specifications.
图 2是根据本发明实施例的分配信道的方法的示意流程图。  2 is a schematic flow chart of a method of allocating channels according to an embodiment of the present invention.
图 3是根据本发明实施例的分配信道的方法的示意流程图。  FIG. 3 is a schematic flow chart of a method of allocating channels according to an embodiment of the present invention.
图 4是根据本发明实施例的信道分配过程的一个例子的示意流程图。 图 5是根据本发明实施例的信道分配过程的另一例子的示意流程图。 图 6是根据本发明实施例的基站设备的示意框图。 4 is a schematic flow chart of an example of a channel allocation process in accordance with an embodiment of the present invention. FIG. 5 is a schematic flow chart of another example of a channel allocation process according to an embodiment of the present invention. FIG. 6 is a schematic block diagram of a base station device according to an embodiment of the present invention.
图 7是根据本发明另一实施例的基站设备的示意框图。  FIG. 7 is a schematic block diagram of a base station device according to another embodiment of the present invention.
图 8是根据本发明实施例的基站控制器的示意框图。 具体实施方式  8 is a schematic block diagram of a base station controller in accordance with an embodiment of the present invention. detailed description
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行 清楚、 完整地描述, 显然, 所描述的实施例是本发明一部分实施例, 而不是 全部的实施例。 基于本发明中的实施例, 本领域普通技术人员在没有作出创 造性劳动前提下所获得的所有其它实施例, 都属于本发明保护的范围。  The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without making creative labor are within the scope of the present invention.
本发明的技术方案, 可以应用于各种通信***, 例如: GSM, 码分多址 The technical solution of the present invention can be applied to various communication systems, for example: GSM, code division multiple access
( CDMA, Code Division Multiple Access ) ***, 宽带码分多址( WCDMA, Wideband Code Division Multiple Access Wireless ), 或长期演进 ( LTE, Long Term Evolution ) ***等。 (CDMA, Code Division Multiple Access) system, Wideband Code Division Multiple Access (WCDMA), or Long Term Evolution (LTE) system.
终端设备, 也可称之为移动终端 (Mobile Terminal ), 用户设备(UE, User Equipment ), 移动用户设备等, 可以经无线接入网(例如, RAN, Radio Access Network )与一个或多个核心网进行通信, 终端设备可以是移动终端, 如移动电话(或称为"蜂窝"电话)和具有移动终端的计算机, 例如, 可以是 便携式、 袖珍式、 手持式、 计算机内置的或者车载的移动装置, 它们与无线 接入网交换语言和 /或数据。  A terminal device, which may also be called a mobile terminal, a user equipment (UE, a user equipment), a mobile user equipment, etc., may be connected to one or more cores via a radio access network (eg, RAN, Radio Access Network) The network communicates, and the terminal device can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal, for example, a mobile device that can be portable, pocket, handheld, computer built, or in-vehicle. They exchange language and/or data with the radio access network.
基站, 例如, 可以是 GSM或 CDMA中的基站(BTS, Base Transceiver The base station, for example, may be a base station in GSM or CDMA (BTS, Base Transceiver)
Station ), 也可以是 WCDMA中的基站( NodeB ), 还可以是 LTE中的演进 型基站 ( eNB或 e-NodeB , evolutional Node B ), 本发明并不限定。 The station may be a base station (NodeB) in WCDMA, or may be an evolved base station (eNB or e-NodeB, evolved Node B) in LTE, which is not limited in the present invention.
控制器,例如,可以是 GSM或 CDMA中的基站控制器( BSC , Base Station Controller ) , 也可以是 WCDMA中的无线网络控制器( RNC, Radio Network Controller ), 本发明并不限定。  The controller, for example, may be a base station controller (BSC, Base Station Controller) in GSM or CDMA, or may be a radio network controller (RNC) in WCDMA, which is not limited in the present invention.
为便于描述, 下文以 GSM***的 BTS和 BSC等网元为例描述了本发 明实施例的方法, 但是本发明实施例不限于此。  For convenience of description, the method of the embodiment of the present invention is described below by taking a network element such as a BTS and a BSC of the GSM system as an example, but the embodiment of the present invention is not limited thereto.
根据 3GPP ( The 3rd Generation Partnership Project; 第三代伙伴关系项 目 )规范, 用户发起呼叫 (包括语音、 短消息、 位置更新等)时的随机接入 过程如图 1所示。 图 1是根据 3GPP规范的随机接入过程 10的示意流程图。  According to the 3GPP (The 3rd Generation Partnership Project) specification, the random access procedure when a user initiates a call (including voice, short message, location update, etc.) is shown in Figure 1. 1 is a schematic flow diagram of a random access procedure 10 in accordance with the 3GPP specifications.
在过程 10的 Sll , MS发送 CHANNEL REQUEST (信道请求 ) 消息, 同时启动 T3120定时器, 以等待响应 (立即指配或立即指配拒绝)。 At S11 of process 10, the MS sends a CHANNEL REQUEST message. Start the T3120 timer at the same time to wait for a response (immediate assignment or immediate assignment rejection).
在 S12, BTS接收到 CHANNEL REQUEST消息后, 补充附加信息, 如 TA ( Timing Advance; 时间提前量 )等信息, 并发送 CHANNEL REQUIRED (信道要求) 消息给 BSC。  At S12, after receiving the CHANNEL REQUEST message, the BTS supplements additional information such as TA (Timing Advance) and sends a CHANNEL REQUIRED message to the BSC.
在 S13 , BSC 分配合适的信道资源, 并向 BTS 发送 CHANNEL At S13, the BSC allocates the appropriate channel resources and sends CHANNEL to the BTS.
ACTIVATION (信道激活) 消息, 通知 BTS对分配的信道资源进行准备。 The ACTIVATION message informs the BTS to prepare for the allocated channel resources.
在 S14, BTS准备好相应资源后,向 BSC发送 CHANNEL ACTIVATION ACKNOWLEDGE (信道激活确认) 消息进行确认。  At S14, after the BTS has prepared the corresponding resources, it sends a CHANNEL ACTIVATION ACKNOWLEDGE message to the BSC for confirmation.
在 S15 , BSC 收到 BTS 的确认消息后, 向 MS 发送 IMMEDIATE ASSIGNMENT (立即指配) 消息, 通知 MS使用专用信道(即 BSC为其分 配的信道资源)。 同时, 启动 T3101定时器以等待 MS发送层 3业务请求。  At S15, after receiving the BTS acknowledgement message, the BSC sends an IMMEDIATE ASSIGNMENT message to the MS to inform the MS to use the dedicated channel (that is, the channel resource allocated by the BSC). At the same time, the T3101 timer is started to wait for the MS to send the layer 3 service request.
在 S16, MS收到 IMMEDIATE ASSIGNMENT后,解码并确认该消息对 应于自身最近 3次发送的 CHANNEL REQUEST消息之一,则停止 T3120定 时器, 并在专用信道上发送 SABM ( Set Asynchronous Balanced Mode; 设置 异步平衡模式) 帧, 该 SABM帧中包含层 3业务请求信息。  After receiving the IMMEDIATE ASSIGNMENT, the MS decodes and confirms that the message corresponds to one of the CHANNEL REQUEST messages sent by the last three times, stops the T3120 timer, and sends SABM (Set Asynchronous Balanced Mode) on the dedicated channel. Balanced mode) frame, the SABM frame contains layer 3 service request information.
在 S17, BTS收到 SABM帧后, 解码后, 将其中的层 3业务请求信息包 装在 ESTABLISH INDICATION (建立指示) 消息中, 发送给 BSC。 BSC收 到 ESTABLISH INDICATION消息后, 停止 T3101定时器, 随机接入成功。  After receiving the SABM frame, the BTS, after decoding, parses the layer 3 service request information in the ESTABLISH INDICATION message and sends it to the BSC. After receiving the ESTABLISH INDICATION message, the BSC stops the T3101 timer and the random access succeeds.
在随机接入过程, 如果 T3120 超时, 则 MS 判断发送的 CHANNEL REQUEST次数是否已经超过了信道请求最大重发次数, 再根据结果进行不 同处理: (i)如果未超过信道请求最大重发次数, 则 MS重新发送 CHANNEL REQUEST消息, 并重新启动 T3120。 (ii)如果已经达到了最大重发次数, 则 MS启动 T3126, 如果 T3126超时后仍未收到网络应答, 则放弃请求尝试, 随机接入失败。  In the random access procedure, if the T3120 times out, the MS determines whether the number of CHANNEL REQUESTs sent has exceeded the maximum number of retransmissions of the channel request, and then performs different processing according to the result: (i) if the maximum number of retransmissions of the channel request is not exceeded, The MS resends the CHANNEL REQUEST message and restarts the T3120. (ii) If the maximum number of retransmissions has been reached, the MS starts T3126. If the network response is not received after the T3126 times out, the request is aborted and the random access fails.
在随机接入过程, 如果 T3101定时器超时, 则 BSC通知 BTS释放已经 分配的信道资源, 并清除相关的接入信息。  In the random access procedure, if the T3101 timer expires, the BSC notifies the BTS to release the allocated channel resources and clear the associated access information.
BSC和 BTS之间的消息传输所需时间较长时,例如当 BSC和 BTS之间 的接口采用卫星传输时, 上述过程 10中 S12、 S13、 S14、 S15消耗的时间较 长, 即 MS 发送 CHANNEL REQUEST 消息到接收到 IMMEDIATE ASSIGNMENT消息之间的时间较长。 这个时间可能超出了 T3120定时器的 定时时长, 导致 T3120定时器超时, MS重发 CHANNEL REQUEST。 BSC 无法识别两次的 CHANNEL REQUEST是同一个 MS发送的, 会重新为该 MS分配一个信道资源, 而 MS收到 IMMEDIATE ASSIGNMENT后, 只会 响应其中的一个, 也就是说, 只会占用其中一个信道。 其它重复分配的信道 资源需要等到 T3101 超时后才释放, 在此期间, 这些信道无法分配给其它 MS使用, 造成这些信道资源的浪费。 When the time required for message transmission between the BSC and the BTS is long, for example, when the interface between the BSC and the BTS is transmitted by satellite, S12, S13, S14, and S15 in the above process 10 consume a longer time, that is, the MS transmits CHANNEL. The time between the REQUEST message and the receipt of the IMMEDIATE ASSIGNMENT message is longer. This time may exceed the timing of the T3120 timer, causing the T3120 timer to time out and the MS resending CHANNEL REQUEST. BSC If the CHANNEL REQUEST that is not recognized twice is sent by the same MS, it will re-allocate a channel resource for the MS. After receiving the IMMEDIATE ASSIGNMENT, the MS will only respond to one of them, that is, it will only occupy one of the channels. Other repeatedly allocated channel resources need to wait until the T3101 times out, during which time these channels cannot be allocated to other MSs, causing waste of these channel resources.
图 2是根据本发明实施例的分配信道的方法 20的示意流程图。 方法 20 可以由基站设备(如 BTS )执行。  2 is a schematic flow diagram of a method 20 of allocating channels in accordance with an embodiment of the present invention. Method 20 can be performed by a base station device, such as a BTS.
如图 2所示, 在方法 20的 S22, 向控制器(如 BSC ) 申请信道资源。 在 S24, 接收控制器分配的信道资源授权。  As shown in FIG. 2, at S22 of method 20, a channel resource is requested from a controller (such as a BSC). At S24, the channel resource authorization assigned by the controller is received.
然后在 S26, 接收终端设备(如 MS ) 的信道请求消息。 在 S28, 根据 信道请求消息和信道资源授权向终端设备分配信道。  Then at S26, a channel request message of the terminal device (e.g., MS) is received. At S28, a channel is allocated to the terminal device according to the channel request message and the channel resource grant.
本发明实施例将无线信道资源使用授权过程和随机接入过程分离为两 个独立过程, 即, 在随机接入过程 ( S26-S28 ) 之前执行信道分配过程 ( S22-S24 ), 因此随机接入过程之外的时延不会引起信道被分配但不被终端 设备使用的情况, 从而解决了资源浪费问题, 提高了无线资源利用率。  The embodiment of the present invention separates the wireless channel resource use authorization process and the random access procedure into two independent processes, that is, performs a channel allocation process (S22-S24) before the random access procedure (S26-S28), and thus random access The delay outside the process does not cause the channel to be allocated but not used by the terminal device, thereby solving the problem of resource waste and improving the utilization of the wireless resource.
图 3是根据本发明实施例的分配信道的方法 30的示意流程图。 方法 30 可以由控制器(如 BSC )执行。 方法 30与图 2的方法 20相对应。  3 is a schematic flow diagram of a method 30 of allocating channels in accordance with an embodiment of the present invention. Method 30 can be performed by a controller such as a BSC. Method 30 corresponds to method 20 of FIG.
如图 3所示, 在方法 30的 S32, 接收基站设备 (如 BTS )在随机接入 过程之前对信道资源的申请, 然后在 S34, 根据信道资源的申请向基站设备 分配信道资源授权, 以便于由基站设备在随机接入过程中根据信道资源授权 分配信道。  As shown in FIG. 3, in S32 of the method 30, the base station device (such as the BTS) receives the application for the channel resource before the random access procedure, and then, at S34, allocates the channel resource authorization to the base station device according to the application of the channel resource, so as to facilitate The channel is allocated by the base station device according to the channel resource grant in the random access procedure.
本发明实施例将无线信道资源使用授权过程和随机接入过程分离为两 个独立过程, 即, 在随机接入过程之前执行信道分配过程, 因此随机接入过 程之外的时延不会引起信道被分配但不被终端设备使用的情况,从而解决了 资源浪费问题, 提高了无线资源利用率。  The embodiment of the present invention separates the radio channel resource use authorization process and the random access procedure into two independent processes, that is, performs a channel allocation process before the random access procedure, so the delay outside the random access procedure does not cause the channel. The situation is allocated but not used by the terminal device, thereby solving the problem of resource waste and improving the utilization of wireless resources.
下面结合具体例子更加详细地描述本发明实施例。  Embodiments of the present invention are described in more detail below with reference to specific examples.
图 4是根据本发明实施例的信道分配过程 40的示意流程图。 信道分配 过程 40涉及三个网元 MS、 BTS和 BSC。 在图 4中, 相同或相似的处理过 程用相同的附图标记表示。  4 is a schematic flow diagram of a channel allocation process 40 in accordance with an embodiment of the present invention. The channel allocation process 40 involves three network elements MS, BTS and BSC. In Fig. 4, the same or similar processes are denoted by the same reference numerals.
在信道分配过程 40中, BTS在启动后向 BSC集中申请信道资源。 在随 机接入过程中, BTS不需要再次向 BSC请求信道资源, 直接使用之前申请 到的资源分配给 MS使用。当 BSC授权给 BTS的信道资源都被占用时, BTS 可以再次向 BSC申请新的授权, 以便后续 MS接入。 In the channel allocation process 40, the BTS collectively applies for channel resources to the BSC after startup. In the random access process, the BTS does not need to request channel resources from the BSC again, and directly applies before applying. The resources arrived are allocated to the MS for use. When the channel resources granted by the BSC to the BTS are occupied, the BTS may apply for a new grant to the BSC again for subsequent MS access.
信道分配过程 40可以分为无线资源使用授权过程 S4a-S4c (以及必要时 的 S4a,-S4c, )和随机接入处理过程 S41-S44两个独立的过程。  The channel allocation process 40 can be divided into two independent processes, a radio resource use authorization process S4a-S4c (and S4a, -S4c if necessary) and a random access process S41-S44.
在无线资源使用授权过程中, 首先在 S4a, BTS启动进入正常工作状态 后, 通过信道资源请求消息 (CHANNEL RESOURCE REQUEST ) 向 BSC 发起资源申请,请求 BSC进行信道分配授权。 S4a可分别对应于上面描述的 图 2的 S22和图 3的 S32。  In the radio resource use authorization process, first, after the BTS starts to enter the normal working state, the BTS initiates a resource request through the channel resource request message (CHANNEL RESOURCE REQUEST) to request the BSC to perform channel allocation authorization. S4a may correspond to S22 of Fig. 2 and S32 of Fig. 3, respectively, as described above.
BSC收到 BTS的信道资源请求后, 根据该请求将一部分信道资源授权 给 BTS使用,并在 S4b,向 BTS发送信道资源授权 (CHANNEL RESOURCE AUTHORIZATION) 消息作为响应,通知 BTS已经获得授权的资源信息。这 里, 信道资源授权可包括多个信道的授权。 S4b可对应于上面图 2的 S24和 图 3的 S34。  After receiving the channel resource request of the BTS, the BSC grants a part of the channel resource to the BTS according to the request, and sends a CHANNEL RESOURCE AUTHORIZATION message to the BTS in response to the BTS to notify the BTS that the authorized resource information has been obtained. Here, the channel resource grant may include authorization for multiple channels. S4b may correspond to S24 of Fig. 2 above and S34 of Fig. 3.
然后在 S4c, BTS 收到授权信息后, 向 BSC发送信道资源授权确认 ( CHANNEL RESOURCE AUTHORIZATION ACKNOWLEDGE ) 消息, 完 成信道资源申请和授权过程。  Then, after receiving the authorization information, the BTS sends a CHANNEL RESOURCE AUTHORIZATION ACKNOWLEDGE message to the BSC to complete the channel resource application and authorization process.
S4a,- S4c,是授权过程的特殊处理过程, 当 BSC授权给 BTS的信道资源 都被占用 (即 BTS得到的信道授权已用完) 时, BTS可以申请追加授权, 再次向 BSC申请新的授权, 以便后续 MS接入。  S4a, - S4c, is a special processing procedure of the authorization process. When the channel resources authorized by the BSC to the BTS are occupied (that is, the channel authorization obtained by the BTS is exhausted), the BTS may apply for additional authorization and apply for a new authorization to the BSC again. For subsequent MS access.
在 S4a,, 当前一次授权的多个信道资源已经使用完(例如, 随机接入较 多, 已获得授权的资源全部分配给 MS ), 为了避免其它随机接入无法进行, BTS可以重新向 BSC发起资源申请( CHANNEL RESOURCE REQUEST ), 要求 BSC追加授权。  In S4a, the current one-time authorized multiple channel resources have been used (for example, more random access, all authorized resources are allocated to the MS), in order to prevent other random access from being performed, the BTS may re-initiate the BSC. Resource request (CHANNEL RESOURCE REQUEST), requesting additional authorization from BSC.
在 S4b,, BSC根据 BTS的请求以及信道分配策略, 决定是否可以继续 对 BTS 追加授权。 如果允许追加授权, 则给 BTS 发送信道资源授权消息 (CHANNEL RESOURCE AUTHORIZATION)作为响应, 通知 BTS已经获得 授权的资源信息。 如果不允许向 BTS追加授权, 则发送拒绝消息。  At S4b, the BSC determines whether it is possible to continue to grant additional authorization to the BTS based on the BTS request and the channel allocation policy. If additional authorization is allowed, a BTS is sent a CHANNEL RESOURCE AUTHORIZATION response to inform the BTS that the authorized resource information has been obtained. If the authorization is not allowed to be added to the BTS, a reject message is sent.
在 S4c,, BTS 收到授权确认信息后, 向 BSC发送信道资源授权确认 ( CHANNEL RESOURCE AUTHORIZATION ACKNOWLEDGE ) 消息, 完 成信道资源追加申请和授权过程。  At S4c, after receiving the authorization confirmation information, the BTS sends a CHANNEL RESOURCE AUTHORIZATION ACKNOWLEDGE message to the BSC to complete the channel resource addition request and authorization process.
在随机接入过程中, 首先在 S41 , MS发送 CHANNEL REQUEST消息, 同时启动 T3120定时器, 等待响应 (立即指配或立即指配拒绝)。 S41可对 应于上面图 2的 S26, 并且可以与图 1的 S11类似。 In the random access process, first at S41, the MS sends a CHANNEL REQUEST message, At the same time start the T3120 timer and wait for a response (immediate assignment or immediate assignment rejection). S41 may correspond to S26 of FIG. 2 above, and may be similar to S11 of FIG.
BTS接收到 CHANNEL REQUEST消息后,查看授权使用的信道使用情 况, 从授权使用的信道中分配合适的信道给 MS。 该合适的信道是 MS的专 用信道。 在 S42, BTS向 MS发送 IMMEDIATE ASSIGNMENT (立即指配 ) 消息, 通知 MS使用该专用信道。 同时, 启动 T3101定时器等待 MS发送 SABM帧。  After receiving the CHANNEL REQUEST message, the BTS checks the channel usage of the authorized use and allocates the appropriate channel to the MS from the channel used for authorization. The suitable channel is the dedicated channel of the MS. At S42, the BTS sends an IMMEDIATE ASSIGNMENT message to the MS to inform the MS to use the dedicated channel. At the same time, the T3101 timer is started to wait for the MS to send a SABM frame.
在 S43, MS收到 IMMEDIATE ASSIGNMENT后,解码并确认该消息对 应于自身最近 3次发送的 CHANNEL REQUEST消息之一,则停止 T3120定 时器, 并在专用信道上发送 SABM帧 (内含层 3业务请求信息)。 S43类似 于图 1的 S16。  After receiving the IMMEDIATE ASSIGNMENT, the MS decodes and confirms that the message corresponds to one of the CHANNEL REQUEST messages sent by the last 3 times, stops the T3120 timer, and sends the SABM frame on the dedicated channel (including the layer 3 service request). information). S43 is similar to S16 of Fig. 1.
在 S44, BTS收到 SABM帧后, 解码后, 将其中的层 3业务请求信息和 该 MS 占用的信道(专用信道) 的信息 (如资源 ID ) 包装在信道请求 告 ( CHANNEL REQUEST REPORT ) 消息中发送给 BSC , 并停止 T3101定时 器, 随机接入过程成功。  After receiving the SABM frame, the BTS, after decoding, wraps the layer 3 service request information and the information (such as the resource ID) of the channel (dedicated channel) occupied by the MS in the CHANNEL REQUEST REPORT message. Send to the BSC, and stop the T3101 timer, the random access process is successful.
如图 4所示, 对于一个或多个 MS, 可重复 S41-S44的随机接入过程, 向这些 MS分配各自的专用信道。  As shown in FIG. 4, for one or more MSs, the random access procedures of S41-S44 may be repeated, and the respective dedicated channels are allocated to the MSs.
根据本发明的一个实施例, 在随机接入过程中, 如果 T3120超时, 则 MS判断发送的 CHANNEL REQUEST次数是否已经超过了信道请求最大重 发次数, 根据结果进行不同处理: (i)如果未超过信道请求最大重发次数, 则 MS重新发送 CHANNEL REQUEST消息, 并重新启动 T3120。 (ii)如果已经 达到了最大重发次数, 则 MS启动 T3126, 如果 T3126超时后仍未收到网络 应答, 则放弃请求尝试, 随机接入失败。  According to an embodiment of the present invention, in the random access procedure, if T3120 times out, the MS determines whether the number of CHANNEL REQUESTs sent has exceeded the maximum number of retransmissions of the channel request, and performs different processing according to the result: (i) if not exceeded If the channel requests the maximum number of retransmissions, the MS resends the CHANNEL REQUEST message and restarts T3120. (ii) If the maximum number of retransmissions has been reached, the MS starts T3126. If the network response is not received after the T3126 times out, the request is abandoned and the random access fails.
根据本发明的另一实施例,在 T3101定时器超时后, BTS释放已经分配 的信道资源, 并清除相关的接入信息。  According to another embodiment of the present invention, after the T3101 timer expires, the BTS releases the allocated channel resources and clears the associated access information.
本发明实施例将 BSC和 BTS之间的无线信道资源授权过程放到随机接 入过程 (即 MS发送 CHANNEL REQUEST消息到 BSC收到对应的层 3业 务请求的处理过程)之前进行, 因此避免了随机接入过程之外的时延引起的 信道被分配但不被终端设备使用的情况, 从而解决了资源浪费问题, 提高了 无线资源利用率。  The embodiment of the present invention performs the radio channel resource authorization process between the BSC and the BTS before the random access procedure (that is, the process in which the MS sends the CHANNEL REQUEST message to the BSC to receive the corresponding layer 3 service request), thereby avoiding randomization. The channel caused by the delay outside the access process is allocated but not used by the terminal device, thereby solving the problem of resource waste and improving the utilization of the wireless resource.
当基站和控制器之间的传输时延较长时(例如基站和控制器之间的接口 采用卫星传输), 图 1的方法可能导致 T3120多次超时, 随机接入最终失败。 图 4的实施例将通过卫星传输链路进行传递的信令处理放到随机接入过程之 外进行, 降低了 MS发送 CHANNEL REQUEST消息到收到 IMMEDIATE ASSIGNMENT消息之间的时间, 不会引起 T3120超时和 MS重复发起请求 而重复为 MS分配信道资源, 从而提高了无线资源利用率。 When the transmission delay between the base station and the controller is long (for example, the interface between the base station and the controller) Using satellite transmission, the method of Figure 1 may cause T3120 to time out multiple times, and random access eventually fails. The embodiment of FIG. 4 puts the signaling processing delivered through the satellite transmission link outside the random access procedure, reducing the time between when the MS sends the CHANNEL REQUEST message to the receipt of the IMMEDIATE ASSIGNMENT message, and does not cause the T3120 to time out. And the MS repeatedly initiates the request and repeatedly allocates channel resources to the MS, thereby improving the utilization of the radio resources.
图 4的例子中 BTS首先向 BSC申请多个信道资源的授权, 本发明实施 例不限于此, 也可以每次仅申请一个信道资源的授权。 图 5是根据本发明另 一实施例的信道分配过程 50的示意流程图。 在图 5的信道分配过程 50中, BSC每次向 BTS授权一个信道的资源。  In the example of FIG. 4, the BTS first applies for authorization of multiple channel resources to the BSC. The embodiment of the present invention is not limited thereto, and only one channel resource authorization may be applied at a time. Figure 5 is a schematic flow diagram of a channel allocation process 50 in accordance with another embodiment of the present invention. In the channel allocation process 50 of Figure 5, the BSC authorizes the resources of one channel to the BTS each time.
如图 5所示, 信道分配过程 50也分为两个独立的过程: 无线资源使用 授权过程 S51-S52和随机接入处理过程 S53-S56。  As shown in Figure 5, the channel allocation process 50 is also divided into two separate processes: radio resource usage authorization process S51-S52 and random access process S53-S56.
BTS启动后, 向 BSC申请一个信道资源。 从而在后续的随机接入过程 中, BTS不需要再次向 BSC请求信道资源, 直接使用之前申请到的资源分 配给 MS使用。 当 MS随机接入成功后, BTS再次向 BSC申请一个信道资 源, 用于下一次的随机接入。 将 BSC和 BTS之间时延较大的处理放到随机 接入开始之前, 能够减少随机接入中的时延, 提高资源利用率。  After the BTS is started, it applies for a channel resource to the BSC. Therefore, in the subsequent random access process, the BTS does not need to request the channel resource from the BSC again, and directly allocates the previously applied resource to the MS. After the random access of the MS is successful, the BTS again applies for a channel resource to the BSC for the next random access. By placing the processing with a large delay between the BSC and the BTS before random access starts, the delay in random access can be reduced, and resource utilization can be improved.
如图 5所示, 在 Abis接口使用卫星传输时, BSC和 BTS之间的信令交 互过程在随机接入之前完成。  As shown in Figure 5, when satellite transmission is used on the Abis interface, the signaling interaction process between the BSC and the BTS is completed before random access.
具体地, 在 S51 , BTS 启动进入正常工作状态后, 通过信道资源请求 ( CHANNEL RESOURCE REQUEST )消息向 BSC发起资源申请,请求 BSC 进行信道分配授权。 与图 4的 S4a不同, BTS在 S51中只申请一个信道的授 权。  Specifically, after the BTS starts to enter the normal working state, the BTS initiates a resource request to the BSC by using a CHANNEL RESOURCE REQUEST message, requesting the BSC to perform channel allocation authorization. Unlike S4a of Fig. 4, the BTS applies for authorization of only one channel in S51.
在 S52, BSC收到 BTS的信道资源请求后, 根据请求, 分配一个信道 资源授权给 BTS 使用, 并给 BTS 发送响应消息 (CHANNEL RESOURCE AUTHORIZATION) , 通知 BTS已经获得授权的资源信息。  At S52, after receiving the channel resource request of the BTS, the BSC allocates a channel resource grant to the BTS according to the request, and sends a response message (CHANNEL RESOURCE AUTHORIZATION) to the BTS to notify the BTS that the authorized resource information has been obtained.
然后是随机接入过程 S53-S56。 具体地, 在 S53, MS向 BTS发送信道 请求( CHANNEL REQUEST )消息, 同时启动 T3120定时器, 等待响应(立 即指配或立即指配拒绝)。  Then there is the random access procedure S53-S56. Specifically, at S53, the MS sends a CHANNEL REQUEST message to the BTS, and simultaneously starts the T3120 timer, waiting for a response (immediate assignment or immediate assignment rejection).
在 S54, BTS接收到 CHANNEL REQUEST消息后,将 BSC授权使用的 信道(即, MS的专用信道)分配给 MS,并向 MS发送立即指配( IMMEDIATE ASSIGNMENT ) 消息, 通知 MS使用该专用信道。 同时, 启动 T3101定时 器等待 MS发送 SABM帧。 At S54, after receiving the CHANNEL REQUEST message, the BTS allocates the channel used by the BSC authorization (ie, the dedicated channel of the MS) to the MS, and sends an IMMEDIATE ASSIGNMENT message to the MS, informing the MS to use the dedicated channel. At the same time, start T3101 timing The device waits for the MS to send a SABM frame.
在 S55, MS收到 IMMEDIATE ASSIGNMENT后,解码并确认该消息对 应于自身最近 3次发送的 CHANNEL REQUEST消息之一,则停止 T3120定 时器, 并在专用信道上发送 SABM帧 (内含层 3业务请求信息)。  After receiving the IMMEDIATE ASSIGNMENT, the MS decodes and confirms that the message corresponds to one of the CHANNEL REQUEST messages sent by the last 3 times, stops the T3120 timer, and sends the SABM frame on the dedicated channel (including the layer 3 service request). information).
在 S56, BTS收到 SABM帧后, 解码后, 将其中的层 3业务请求信息和 该 MS占用的信道(即 MS的专用信道)信息包装在信道请求报告( CHANNEL REQUEST REPORT ) 消息中发送给 BSC , 并停止 T3101定时器, 此时随机 接入过程成功。  After receiving the SABM frame, the BTS, after decoding, wraps the layer 3 service request information and the channel occupied by the MS (ie, the dedicated channel of the MS) in a channel request report (CHANNEL REQUEST REPORT) message and sends the message to the BSC. And stop the T3101 timer, at which point the random access process is successful.
如图 5所示, 对于多个 MS, 可重复 S51-S56的信道分配过程, 向这些 MS分配各自的专用信道。  As shown in FIG. 5, for a plurality of MSs, the channel allocation process of S51-S56 can be repeated, and the respective dedicated channels are allocated to the MSs.
根据本发明的一个实施例, 在随机接入过程中, 如果 T3120超时, 则 MS判断发送的 CHANNEL REQUEST次数是否已经超过了信道请求最大重 发次数, 根据结果进行不同处理: (i)如果未超过信道请求最大重发次数, 则 MS重新发送 CHANNEL REQUEST消息, 并重新启动 T3120。 (ii)如果已经 达到了最大重发次数, 则 MS启动 T3126, 如果 T3126超时后仍未收到网络 应答, 则放弃请求尝试, 随机接入失败。  According to an embodiment of the present invention, in the random access procedure, if T3120 times out, the MS determines whether the number of CHANNEL REQUESTs sent has exceeded the maximum number of retransmissions of the channel request, and performs different processing according to the result: (i) if not exceeded If the channel requests the maximum number of retransmissions, the MS resends the CHANNEL REQUEST message and restarts T3120. (ii) If the maximum number of retransmissions has been reached, the MS starts T3126. If the network response is not received after the T3126 times out, the request is abandoned and the random access fails.
根据本发明的另一实施例, 如果 T3101定时器超时, 则 BTS释放已经 分配的信道资源, 并清除相关的接入信息。  According to another embodiment of the present invention, if the T3101 timer expires, the BTS releases the already allocated channel resources and clears the associated access information.
本发明实施例将 BSC和 BTS之间的无线信道资源使用授权过程放到随 机接入过程 (即 MS发送 CHANNEL REQUEST消息到 BSC收到对应的层 3 业务请求的处理过程)之前进行, 因此随机接入过程之外的时延不会引起信 道被分配但不被终端设备使用的情况, 从而解决了资源浪费问题, 提高了无 线资源利用率。  In the embodiment of the present invention, the radio channel resource use authorization process between the BSC and the BTS is performed before the random access procedure (that is, the process in which the MS sends a CHANNEL REQUEST message to the BSC to receive the corresponding layer 3 service request), and thus is randomly connected. The delay outside the incoming process does not cause the channel to be allocated but not used by the terminal device, thereby solving the problem of resource waste and improving the utilization of the wireless resource.
另外, 与图 4的实施例相比, 图 5的实施例中 BTS无需预测信道资源 的使用情况并根据预测结果确定每次申请授权的信道资源的数目,每次仅仅 申请固定数目 (例如, 一个) 的信道资源的授权。  In addition, compared with the embodiment of FIG. 4, the BTS in the embodiment of FIG. 5 does not need to predict the use of channel resources and determines the number of channel resources authorized for each application according to the prediction result, and only applies a fixed number each time (for example, one Authorization of channel resources.
图 6是根据本发明实施例的基站设备 60的示意框图。 如图 6所示, 基 站设备 60包括申请单元 61、 授权接收单元 62、 请求接收单元 63和分配单 元 64。  Figure 6 is a schematic block diagram of a base station device 60 in accordance with an embodiment of the present invention. As shown in FIG. 6, the base station device 60 includes an application unit 61, an authorization receiving unit 62, a request receiving unit 63, and an allocation unit 64.
申请单元 61用于向控制器申请信道资源。授权接收单元 62用于接收控 制器分配的信道资源授权。 请求接收单元 63用于接收终端设备的信道请求 消息。 分配单元 64用于根据信道请求消息和信道资源授权向终端设备分配 信道。 The application unit 61 is configured to apply for a channel resource from the controller. The authorization receiving unit 62 is configured to receive a channel resource authorization allocated by the controller. The request receiving unit 63 is configured to receive a channel request of the terminal device Message. The allocating unit 64 is configured to allocate a channel to the terminal device according to the channel request message and the channel resource grant.
基站设备 60的各个部分可分别执行图 2的各个过程, 为避免重复, 不 再赘述。  The various parts of the base station apparatus 60 can perform the respective processes of Fig. 2, respectively, and will not be described again in order to avoid redundancy.
本发明实施例将无线信道资源使用授权过程和随机接入过程分离为两 个独立过程, 即, 在随机接入过程之前执行信道分配过程, 因此随机接入过 程之外的时延不会引起信道被分配但不被终端设备使用的情况,从而解决了 资源浪费问题, 提高了无线资源利用率。  The embodiment of the present invention separates the radio channel resource use authorization process and the random access procedure into two independent processes, that is, performs a channel allocation process before the random access procedure, so the delay outside the random access procedure does not cause the channel. The situation is allocated but not used by the terminal device, thereby solving the problem of resource waste and improving the utilization of wireless resources.
图 7是根据本发明另一实施例的基站设备 70。在图 7中,与图 6中相同 或相似的部分用相同的附图标记表示。 例如, 基站设备 70也包括申请单元 61、 授权接收单元 62、 请求接收单元 63和分配单元 64。 此外, 基站设备 70 的申请单元 61 还可以在信道资源授权已用完时, 向基站控制器申请追加信 道资源授权。  FIG. 7 is a base station device 70 in accordance with another embodiment of the present invention. In Fig. 7, the same or similar portions as those in Fig. 6 are denoted by the same reference numerals. For example, the base station device 70 also includes an application unit 61, an authorization receiving unit 62, a request receiving unit 63, and an allocating unit 64. In addition, the application unit 61 of the base station device 70 can also apply for additional channel resource authorization to the base station controller when the channel resource grant has been exhausted.
另外, 如图 7所示,基站设备 70的分配单元 64包括选择模块 71、发送 模块 72和定时模块 73。选择模块 71用于根据信道请求消息和信道资源授权, 选择分配给终端设备的专用信道。 发送模块 72用于向终端设备发送立即指 配消息, 以向终端设备通知所分配的专用信道。 定时模块 73用于启动定时 器以等待终端设备针对立即指配消息发送的 SABM帧。  In addition, as shown in FIG. 7, the allocation unit 64 of the base station device 70 includes a selection module 71, a transmission module 72, and a timing module 73. The selection module 71 is configured to select a dedicated channel allocated to the terminal device according to the channel request message and the channel resource grant. The sending module 72 is configured to send an immediate assignment message to the terminal device to notify the terminal device of the allocated dedicated channel. The timing module 73 is operative to activate the timer to wait for the SABM frame transmitted by the terminal device for the immediate assignment message.
基站设备 70还可以执行图 4和图 5中 BTS执行的相应过程, 为避免重 复, 不再赘述。  The base station device 70 can also perform the corresponding processes performed by the BTS in Figs. 4 and 5, and will not be described again in order to avoid redundancy.
图 8是根据本发明实施例的控制器 80的示意框图。 如图 8所示, 控制 器 80包括申请接收单元 81和授权单元 82。  Figure 8 is a schematic block diagram of a controller 80 in accordance with an embodiment of the present invention. As shown in FIG. 8, the controller 80 includes an application receiving unit 81 and an authorization unit 82.
申请接收单元 81用于接收基站设备对信道资源的申请。授权单元 82用 于根据信道资源的申请向基站设备分配信道资源授权, 以便于由基站设备根 据信道资源授权分配信道。  The application receiving unit 81 is configured to receive an application of the base station device for channel resources. The authorization unit 82 is configured to allocate a channel resource grant to the base station device according to the application of the channel resource, so that the base station device allocates the channel according to the channel resource grant.
基站控制器 80的各个部分可分别执行图 3的各个过程, 为避免重复, 不再赘述。  The various parts of the base station controller 80 can respectively perform the respective processes of FIG. 3, and are not described again in order to avoid redundancy.
本发明实施例将无线信道资源使用授权过程和随机接入过程分离为两 个独立过程, 即, 在随机接入过程之前执行信道分配过程, 因此随机接入过 程之外的时延不会引起信道被分配但不被终端设备使用的情况,从而解决了 资源浪费问题, 提高了无线资源利用率。 根据本发明的另一实施例, 申请接收单元 81还可以用于接收基站设备 对信道资源的追加授权申请, 此时, 授权单元 82还可以用于根据追加授权 申请和信道分配策略, 确定是否对基站设备追加信道资源授权。 The embodiment of the present invention separates the radio channel resource use authorization process and the random access procedure into two independent processes, that is, performs a channel allocation process before the random access procedure, so the delay outside the random access procedure does not cause the channel. The situation is allocated but not used by the terminal device, thereby solving the problem of resource waste and improving the utilization of wireless resources. According to another embodiment of the present invention, the application receiving unit 81 may be further configured to receive an application for granting an additional grant to the channel resource by the base station device. In this case, the authorization unit 82 may be further configured to determine whether the pair is based on the additional authorization request and the channel allocation policy. The base station device adds channel resource authorization.
基站控制器 80还可以执行图 4和图 5中 BSC执行的相应过程, 为避免 重复, 不再赘述。  The base station controller 80 can also perform the corresponding processes performed by the BSC in FIGS. 4 and 5, and will not be described again to avoid repetition.
根据本发明实施例的通信***可包括上述基站设备 60、 70,或者上述基 站控制器 80。  The communication system according to an embodiment of the present invention may include the above-described base station devices 60, 70, or the above-described base station controller 80.
应用本发明实施例的基站、控制器进行信道分配的具体过程与前述方法 实施例类似, 此处不再赘述。  The specific process of the channel allocation by using the base station and the controller in the embodiment of the present invention is similar to the foregoing method embodiment, and details are not described herein again.
本领域普通技术人员可以意识到, 结合本文中所公开的实施例描述的各 示例的单元及算法步骤, 能够以电子硬件、 计算机软件或者二者的结合来实 现, 为了清楚地说明硬件和软件的可互换性, 在上述说明中已经按照功能一 般性地描述了各示例的组成及步骤。这些功能究竟以硬件还是软件方式来执 行, 取决于技术方案的特定应用和设计约束条件。 专业技术人员可以对每个 特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超 出本发明的范围。  Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware, computer software or a combination of both, in order to clearly illustrate hardware and software. Interchangeability, the composition and steps of the various examples have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.
所属领域的技术人员可以清楚地了解到, 为描述的方便和筒洁, 上述描 述的***、 装置和单元的具体工作过程, 可以参考前述方法实施例中的对应 过程, 在此不再赘述。  It will be apparent to those skilled in the art that, for the convenience of the description and the cleaning process, the specific operation of the system, the device and the unit described above may be referred to the corresponding processes in the foregoing method embodiments, and details are not described herein again.
在本申请所提供的几个实施例中, 应该理解到, 所揭露的***、 装置和 方法, 可以通过其它的方式实现。 例如, 以上所描述的装置实施例仅仅是示 意性的, 例如, 所述单元的划分, 仅仅为一种逻辑功能划分, 实际实现时可 以有另外的划分方式, 例如多个单元或组件可以结合或者可以集成到另一个 ***, 或一些特征可以忽略, 或不执行。 另一点, 所显示或讨论的相互之间 的耦合或直接耦合或通信连接可以是通过一些接口, 装置或单元的间接耦合 或通信连接, 可以是电性, 机械或其它的形式。  In the several embodiments provided herein, it should be understood that the disclosed systems, devices, and methods may be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed. In addition, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical, mechanical or otherwise.
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作 为单元显示的部件可以是或者也可以不是物理单元, 即可以位于一个地方, 或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或 者全部单元来实现本实施例方案的目的。  The units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solution of the embodiment.
另外, 在本发明各个实施例中的各功能单元可以集成在一个处理单元 中, 也可以是各个单元单独物理存在, 也可以两个或两个以上单元集成在一 个单元中。 上述集成的单元既可以采用硬件的形式实现, 也可以采用软件功 能单元的形式实现。 In addition, each functional unit in various embodiments of the present invention may be integrated into one processing unit In addition, each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销 售或使用时, 可以存储在一个计算机可读取存储介质中。 基于这样的理解, 本发明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方 案的全部或部分可以以软件产品的形式体现出来,该计算机软件产品存储在 一个存储介质中, 包括若干指令用以使得一台计算机设备(可以是个人计算 机, 服务器, 或者网络设备等)执行本发明各个实施例所述方法的全部或部 分步骤。 而前述的存储介质包括: U盘、 移动硬盘、 只读存储器(ROM, Read-Only Memory )、 随机存取存储器 ( RAM, Random Access Memory )、 磁碟或者光盘等各种可以存储程序代码的介质。  The integrated unit, if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may contribute to the prior art or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium. A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a U disk, a removable hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like, which can store program codes. .
以上所述, 仅为本发明的具体实施方式, 但本发明的保护范围并不局限 于此, 任何熟悉本技术领域的技术人员在本发明揭露的技术范围内, 可轻易 想到变化或替换, 都应涵盖在本发明的保护范围之内。 因此, 本发明的保护 范围应所述以权利要求的保护范围为准。  The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the claims.

Claims

权利要求 Rights request
1、 一种分配信道的方法, 其特征在于, 包括:  A method for allocating a channel, comprising:
向控制器申请信道资源;  Applying for channel resources to the controller;
接收控制器分配的信道资源授权;  Receiving channel resource authorization assigned by the controller;
接收终端设备的信道请求消息;  Receiving a channel request message of the terminal device;
根据所述信道请求消息和所述信道资源授权向所述终端设备分配信道。 And allocating a channel to the terminal device according to the channel request message and the channel resource grant.
2、 如权利要求 1所述的方法, 其特征在于, 所述信道资源授权包括一 个或多个信道资源的授权。 2. The method of claim 1 wherein the channel resource grant comprises an authorization of one or more channel resources.
3、 如权利要求 1或 2所述的方法, 其特征在于, 还包括:  3. The method according to claim 1 or 2, further comprising:
如果所述信道资源授权已用完, 则向所述控制器申请追加信道资源授 权。  If the channel resource grant has been exhausted, an additional channel resource grant is applied to the controller.
4、 如权利要求 1-3任一项所述的方法, 其特征在于, 根据所述信道请 求消息和所述信道资源授权向所述终端设备分配信道包括:  The method according to any one of claims 1-3, wherein: assigning a channel to the terminal device according to the channel request message and the channel resource grant comprises:
根据所述信道请求消息和所述信道资源授权,选择分配给所述终端设备 的专用信道;  Selecting a dedicated channel allocated to the terminal device according to the channel request message and the channel resource grant;
向所述终端设备发送立即指配消息, 以向所述终端设备通知所述分配的 专用信道。  An immediate assignment message is sent to the terminal device to notify the terminal device of the allocated dedicated channel.
5、 如权利要求 4所述的方法, 其特征在于, 在根据所述信道请求消息 和所述信道资源授权向所述终端设备分配信道之前, 还包括:  The method according to claim 4, further comprising: before: assigning a channel to the terminal device according to the channel request message and the channel resource authorization, further comprising:
启动定时器以等待所述终端设备针对所述立即指配消息发送的设置异 步平衡模式 SABM帧。  A timer is started to wait for the set of asynchronous balance mode SABM frames sent by the terminal device for the immediate assignment message.
6、 一种分配信道的方法, 其特征在于, 包括:  6. A method for allocating channels, comprising:
接收基站设备在随机接入过程之前对信道资源的申请;  Receiving an application for a channel resource by the base station device before the random access procedure;
根据所述信道资源的申请向所述基站设备分配信道资源授权, 以便于由 所述基站设备在随机接入过程中根据所述信道资源授权分配信道。  And allocating a channel resource grant to the base station device according to the request for the channel resource, so that the channel is allocated by the base station device according to the channel resource authorization in a random access procedure.
7、 如权利要求 6所述的方法, 其特征在于, 还包括:  7. The method of claim 6, further comprising:
接收所述基站设备对信道资源的追加授权申请;  Receiving an additional authorization request for the channel resource by the base station device;
根据所述追加授权申请和信道分配策略,确定是否对所述基站设备追加 信道资源授权。  And determining, according to the additional authorization request and the channel allocation policy, whether to add a channel resource grant to the base station device.
8、 一种基站设备, 其特征在于, 包括:  A base station device, comprising:
申请单元, 用于向控制器申请信道资源; 授权接收单元, 用于接收控制器分配的信道资源授权; An application unit, configured to apply for a channel resource to the controller; An authorization receiving unit, configured to receive a channel resource authorization allocated by the controller;
请求接收单元, 用于接收终端设备的信道请求消息;  a request receiving unit, configured to receive a channel request message of the terminal device;
分配单元,用于根据所述信道请求消息和所述信道资源授权向所述终端 设备分配信道。  And an allocating unit, configured to allocate a channel to the terminal device according to the channel request message and the channel resource grant.
9、 如权利要求 8所述的基站设备, 其特征在于, 所述信道资源授权包 括一个或多个信道资源的授权。  9. The base station device of claim 8, wherein the channel resource grant comprises an authorization of one or more channel resources.
10、 如权利要求 8或 9所述的基站设备, 其特征在于, 所述申请单元还 用于在所述信道资源授权已用完时, 向所述基站控制器申请追加信道资源授 权。  The base station device according to claim 8 or 9, wherein the application unit is further configured to apply for additional channel resource authorization to the base station controller when the channel resource authorization is exhausted.
11、 如权利要求 8-10任一项所述的基站设备, 其特征在于, 所述分配 单元包括:  The base station device according to any one of claims 8 to 10, wherein the allocating unit comprises:
选择模块,用于根据所述信道请求消息和所述信道资源授权选择分配给 所述终端设备的专用信道;  a selection module, configured to select, according to the channel request message and the channel resource authorization, a dedicated channel allocated to the terminal device;
发送模块, 用于向所述终端设备发送立即指配消息, 以向所述终端设备 通知所述分配的专用信道。  And a sending module, configured to send an immediate assignment message to the terminal device, to notify the terminal device of the allocated dedicated channel.
12、 如权利要求 11所述的基站设备, 其特征在于, 还包括:  The base station device according to claim 11, further comprising:
定时模块,用于启动定时器以等待所述终端设备针对所述立即指配消息 发送的设置异步平衡模式 SABM帧。  And a timing module, configured to start a timer to wait for the terminal device to set an asynchronous balanced mode SABM frame for the immediate assignment message.
13、 一种控制器, 其特征在于, 包括:  13. A controller, comprising:
申请接收单元,用于接收基站设备在随机接入过程之前对信道资源的申 请;  The application receiving unit is configured to receive an application for the channel resource by the base station device before the random access process;
授权单元,用于根据所述信道资源的申请向所述基站设备分配信道资源 授权, 以便于由所述基站设备在随机接入过程中根据所述信道资源授权分配 信道。  And an authorization unit, configured to allocate a channel resource grant to the base station device according to the request for the channel resource, so that the channel is allocated by the base station device according to the channel resource authorization in a random access procedure.
14、 如权利要求 13所述的基站控制器, 其特征在于,  14. The base station controller of claim 13 wherein:
所述申请接收单元还用于接收所述基站设备对信道资源的追加授权申 请;  The application receiving unit is further configured to receive an additional authorization request for the channel resource by the base station device;
所述授权单元还用于根据所述追加授权申请和信道分配策略,确定是否 对所述基站设备追加信道资源授权。  The authorization unit is further configured to determine whether to add a channel resource authorization to the base station device according to the additional authorization request and a channel allocation policy.
15、 一种通信***, 其特征在于, 包括如权利要求 8-12 中任一项所述 的基站设备或如权利要求 13-14中任一项所述的控制器。  A communication system, comprising: the base station device according to any one of claims 8 to 12 or the controller according to any one of claims 13-14.
PCT/CN2011/074897 2011-05-30 2011-05-30 Method for allocating channels, base station equipment, controller and communication system WO2011157113A2 (en)

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