WO2014067041A1 - 一种初始化方法、设备和系统 - Google Patents

一种初始化方法、设备和系统 Download PDF

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Publication number
WO2014067041A1
WO2014067041A1 PCT/CN2012/083659 CN2012083659W WO2014067041A1 WO 2014067041 A1 WO2014067041 A1 WO 2014067041A1 CN 2012083659 W CN2012083659 W CN 2012083659W WO 2014067041 A1 WO2014067041 A1 WO 2014067041A1
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WO
WIPO (PCT)
Prior art keywords
user terminal
ratio
transceiver
control message
access device
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Application number
PCT/CN2012/083659
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English (en)
French (fr)
Inventor
刘义贤
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 CN201280001483.6A priority Critical patent/CN103098412B/zh
Priority to PCT/CN2012/083659 priority patent/WO2014067041A1/zh
Publication of WO2014067041A1 publication Critical patent/WO2014067041A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/14Two-way operation using the same type of signal, i.e. duplex
    • H04L5/1438Negotiation of transmission parameters prior to communication
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B3/00Line transmission systems
    • H04B3/02Details
    • H04B3/32Reducing cross-talk, e.g. by compensating
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/14Two-way operation using the same type of signal, i.e. duplex
    • H04L5/1469Two-way operation using the same type of signal, i.e. duplex using time-sharing

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to an initialization method, device, and system (
  • Next-generation copper broadband access technology G.fast is used in communications services from fiber to branch point
  • TDD time division duplexing
  • a TDD frame contains a number of time slots that can be assigned to uplink time slots, downlink time slots, and guard time slots.
  • the theoretical up and down uplink time slots can be freely allocated.
  • the demand for the downlink rate is often greater than the demand for the uplink rate, that is, the lower uplink rate is incorrect.
  • the ⁇ TDD grid reflects ⁇ is the ratio of the downlink transmission length to the length of the transmission slot, that is, the length of the downlink slot and the length of the upstream slot.
  • FIG. 1 This figure omits the protection slot).
  • DS downstream indicates the downlink slot
  • US upstream indicates the uplink slot
  • SS sync symbol
  • a wire pair refers to a communication link consisting of a transceiver in an access device, a user terminal device connected to the transceiver, and a twisted pair between the two. For G.fast, all pairs of the same distribution point need to be uplink synchronized.
  • the time division duplex system in which the uplink time slots are completely synchronized between different pairs is called # ⁇ synchronous time division duplex
  • the degree of asymmetry of the STDD system is large, it will have a lot of adverse effects on the initialization process.
  • the STDD system with a large degree of asymmetry under the uplink has a long initialization time and a large probability of initial failure, which affects the user experience. Summary of the invention
  • the embodiment of the present invention provides an initialization method, device, and system, specifically:
  • a method for initializing is provided, which is applied to a network system, where the network system includes an access device and at least two user terminal devices, and the access device includes at least two transceivers.
  • the transceivers is connected to only one of the user terminal devices, each of the user terminal devices is connected to only one of the transceivers, and the time division duplex is used between the interconnected transceivers and the user terminal devices.
  • the frame performs message interaction, and each transceiver and the method connected thereto include: determining, by the access device, that the user equipment in the network system and the first transceiver in the access device connected thereto need to be initialized Transmitting, to the user equipments in the network system, all the working terminal devices except the first user terminal device, the first control message carrying the first ratio M1, so that the first user terminal device is All working user equipments and transceivers connected to them adjust the lower uplink asymmetry ratio to a first ratio M1, wherein the lower uplink asymmetry ratio is a downlink time slot length and an uplink time slot in a time division duplex frame used for message interaction between each user terminal device in an active state and a transceiver connected thereto a ratio of lengths, wherein the first ratio M1 is a value in a range of lower uplink asymmetry ratios supported by the network system, where 1 M1 ⁇ M2 or M2 ⁇ M1 1 , and the second ratio M2 is the working state
  • the sending, by the user terminal device in the network system, all the working terminal devices except the first user terminal device The first control message of the ratio M1 is specifically: the access device simultaneously transmits, to all the user terminal devices in the working system except the first user terminal device, the first ratio M1 a control message such that the first user terminal device All of the working user terminal devices and the transceivers connected thereto simultaneously adjust the lower uplink asymmetry ratio to the M1.
  • the first control message carries a specified time, so that all the user terminal devices in the working state except the first user terminal device are connected thereto Each transceiver adjusts the lower uplink asymmetry ratio to the M1 at the specified time.
  • the access device after the first user terminal device and the first transceiver connected thereto are initialized, to the network system All the user terminal devices in the working state send a third control message carrying the third ratio M3, so that all the working terminal devices and the transceivers connected thereto simultaneously use the time division duplex frame for message interaction.
  • the lower uplink asymmetry ratio is adjusted to the M3, and the M3 is equal to the value of the M2 or equal to the other lower uplink asymmetry ratio supported by the network system.
  • the access device is configured to perform current downlink data flow rate and uplink data flow rate according to all transceivers in the working state except the first transceiver.
  • the ratio determines the M1; or, the access device determines the M1 according to a ratio of a current downlink data flow rate and an uplink data flow rate of the access device.
  • the initialization method of the first aspect disclosed by the embodiment of the present invention first adjusts the lower uplink asymmetry ratio of each synchronous time division duplex frame of the network system by using the It initialized by the user terminal equipment, so as to adjust the lower uplink asymmetry ratio
  • the user terminal device that is initialized can complete initialization more quickly, and can improve the success rate of initialization and improve the user experience.
  • an access device includes: a dynamic resource allocation unit and at least two transceiver units connected thereto; the dynamic resource allocation unit, configured to The initial request of the transceiver unit generates a first control message, and sends a first control message carrying the first ratio M1 to the transceiver unit in the working state except the first transceiver unit, where the first transceiver unit is At least one of the at least two transceiver units, the M1 is a value pre-existing in a range of a lower uplink asymmetry ratio in the access device, and the lower uplink asymmetry ratio is a transceiver unit in the working state and the respective Used between connected user terminal devices for messages
  • the M2 is the value of the previous uplink asymmetry ratio being adjusted to the value before the M1; determining that the transceiver unit in the working state and the connected user terminal device complete the uplink does not After the symmetrical ratio is adjusted, the second control message carrying the M1 is sent to the first transceiver unit; the first transceiver unit is configured to receive the second control message, and carry the second control message according to the second control message.
  • the M1 is initialized; the transceiver unit of the access device except the first transceiver unit is configured to receive the first control message, according to the M1 carried in the first control message, Adjusting the lower uplink asymmetry ratio to the M1; wherein, each of the transmitting and receiving Each time slot of each time division duplex frame used for message interaction between the unit and the user terminal device to which it is connected is synchronized.
  • the dynamic resource allocation unit is configured to send the first control to all the transceiver units in the working state except the first transceiver unit.
  • Each of the transceiver units except the first transceiver unit is configured to receive the first control message, and adjust the respective uplink uplink asymmetry ratio according to the M1 carried in the first control message. To the Ml.
  • the first control message further carries a specified time
  • the transceiver unit except the first transceiver unit is specifically configured to receive the first And controlling, according to the specified time and the M1 carried in the first control message, adjusting respective lower uplink asymmetry ratios to the M1 at the specified time.
  • the dynamic resource allocation unit is further configured to: after the first transceiver unit and the user terminal device connected to the first transceiver unit are initialized Transmitting, to all the transceiver units in the working device, a third control message carrying M3, where the M3 is equal to the M2 or equal to another downlink asymmetry in the range of the lower uplink asymmetry ratio The value of the ratio; the transceiver unit in the access device is further configured to adjust the respective lower uplink asymmetry ratio to the M3 according to the third control message.
  • the dynamic resource allocation unit is further configured to send, after the first control message is generated, the adjusted uplink and downlink asymmetry to the transceiver unit in the working state. And a ratio of the notification message, and determining the M1 according to a ratio of a current downlink data flow rate and an uplink data flow rate returned by the transceiver unit in an active state; or the dynamic resource allocation unit is further configured to generate the first control Before the message, the notification message of adjusting the uplink asymmetry ratio is sent to the transceiver unit in the working state, and the M1 is determined according to the downlink data flow rate and the uplink data flow rate returned by the transceiver unit in the working state.
  • the access device of the second aspect disclosed by the embodiment of the present invention adjusts the lower uplink asymmetry ratio of each synchronous time division duplex frame before the user terminal device connected thereto is initialized, and uses the uplink asymmetry ratio to initialize the user.
  • the terminal device can complete initialization more quickly, and can improve the success rate of initialization and improve the user experience.
  • a network system including an access device and at least two user terminal devices; the access device is disclosed in the second aspect of the embodiments of the present invention. Any one of the access devices; the user terminal device and the transceiver unit in the access device are connected by a twisted pair, and each of the access devices is connected to only one of the user terminal devices, and each The user terminal devices are only connected to one of the access devices.
  • the network system of the third aspect disclosed in the embodiment of the present invention passes through a user terminal in the system Before the device is initialized, the lower uplink asymmetry ratio of each synchronous time division duplex frame of the network system is adjusted, so that the user terminal device initialized with the adjusted lower uplink asymmetry ratio can complete the initialization more quickly, and can improve The success rate of initialization improves the user experience.
  • FIG. 2 is a schematic diagram of time slot synchronization between different pairs in the prior art
  • FIG. 3 is a flowchart of a method for initializing a synchronous time division duplex system according to Embodiment 1 of the present invention
  • FIG. 4 is a schematic diagram of a connection structure of a synchronous time division duplex system according to Embodiment 1 of the present invention. Schematic diagram of the device;
  • FIG. 6 is a schematic structural diagram of a user terminal device according to Embodiment 3 of the present invention.
  • Embodiment 1 The embodiment of the present invention provides an initialization method, which can be applied to a network system. As shown in FIG. 3, the method specifically includes:
  • the network system includes an access device and at least two user terminal devices, where the access device includes at least two transceivers, wherein each of the transceivers is only associated with one of the user terminal devices Connected, each of the user terminal devices is connected to only one of the transceivers, the interconnected transceivers and the user ends, and the devices use the time division duplex to perform message delivery, and the respective transceivers can be Synchronous time division duplex (synchronous TDD, STDD) system.
  • Being in working state means being in the showtime state.
  • the so-called showtime is the state in which the initialization process has been completed and data is sent in the carrier channel.
  • a transceiver and a user terminal device and the twisted pair connecting them can be referred to as a pair.
  • Step S101 the access device determines that the first user equipment in the network system and the first transceiver in the access device connected to the network device need to be initialized, and the All user terminal devices in a working state except a user terminal device send a first control message, so that all the user terminal devices in the working state except the first user terminal device and the transceivers connected thereto will not go up.
  • the symmetry ratio is adjusted to Ml
  • the first A control message carries the M1
  • the lower uplink asymmetry ratio is a downlink in a time division duplex frame used for message interaction between each transceiver in the access device and each user terminal device in the working state.
  • M1 is a value in a range of lower uplink asymmetry ratios supported by the network system, where 1 M1 ⁇ M2 or M2 ⁇ M1 1 , the M2 is the The lower uplink asymmetry ratio of the time division duplex frame for message exchange between each transceiver in the access device and the working user terminal device is adjusted to a value before the M1.
  • the access device can discover that the first user terminal device and the first transceiver connected thereto need to be initialized by shaking hands with the first user terminal device.
  • the method for determining that the access device needs to be initialized may be: after the first user terminal device is powered on, the handshake is performed with the access device, and the handshake is defined in the G.994.1 standard, and is not detailed. .
  • the handshake phase After the access device discovers the handshake phase, it selects the channel discovery phase that enters the initialization process. At this time, the channel discovery phase has not yet entered, indicating that the first user terminal device and the first transceiver connected thereto need to be initialized.
  • the access device may also determine that the corresponding terminal device and the transceiver connected thereto need to be initialized according to requirements or according to an instruction from the user side or the network side.
  • the access device transmits a first control message to each of the working user terminal devices connected to the transceiver through each transceiver.
  • a more preferred solution may be that, in order to avoid NEXT crosstalk, the adjustment of the lower uplink asymmetry ratio of each pair may be completed simultaneously.
  • the sending, by the user terminal device in the network system, all the working terminal devices except the first user terminal device, the first control message carrying the first ratio M1 is sent at the same time, so that All of the working user terminal devices other than the first user terminal device and the transceivers connected thereto simultaneously adjust the lower uplink asymmetry ratio to the M1.
  • each transceiver may send a first control message carrying M1 to the user equipment connected thereto, and notify the terminal device to adjust the uplink asymmetry ratio, and each terminal device will next after receiving the first control message.
  • the value of the lower uplink asymmetry ratio of the time division duplex frame of the frame is adjusted to M1, and each transceiver simultaneously adjusts the lower uplink asymmetry ratio to M1 after issuing the first control message, because the original time division on each line pair
  • the duplex frame time slot is synchronized, and because the lower uplink asymmetry ratio of the next frame is adjusted at the same time, the time division duplex frame time slots on the adjusted line pairs are also synchronized, thereby ensuring all the user terminals in the working state.
  • the device and the corresponding transceiver simultaneously perform the adjustment of the lower uplink asymmetry ratio so as not to cause crosstalk.
  • the first control message carrying the first ratio M1 is sent to all the working terminal devices except the first user terminal device in the network system, and the first control message is sent at the same time. So that all the user terminal devices in the working state except the first user terminal device and the transceivers connected thereto adjust the lower uplink asymmetry ratio to the M1 at the same time. Specifically, if the access device in the network and each user terminal device are clocked, the first control message may carry the adjusted time at the same time, and the clock may be synchronized to ensure that the corresponding adjustment is completed at the same time.
  • the first control message may also be used to instruct the terminal device and the transceiver connected thereto to adjust the uplink asymmetry ratio respectively at the Nth time division duplex frame after receiving and issuing the corresponding instruction.
  • Other information that can be used to identify time in each time division duplex frame can also be used to control each line pair while adjusting the lower asymmetry ratio.
  • the corresponding transceiver sends a message to the access device to confirm that the uplink asymmetry ratio adjustment is completed.
  • the goal of adjusting the uplink asymmetry ratio is to adjust the original working value M2 of the system to the symmetrical direction, that is, to adjust to the direction of 1 because, in general, the following up-symmetric time-division duplex frames are initialized to be superior.
  • Ml should be a value between 1 and M2. If M2 is less than 1, then Ml is greater than M2 and less than or equal to 1. If M2 is greater than 1, then Ml is greater than or equal to 1 and less than M2.
  • the value of the M1 can be arbitrarily selected, and the initialization of the first user terminal device can be accelerated, and the initialization success rate is improved.
  • Ml should be chosen within the range of the uplink asymmetry ratio that the system can support.
  • the range of the lower uplink asymmetry ratio that the system can support is pre-existing in the access device.
  • Step S102 the access device adjusts the lower uplink asymmetry ratio to M1 after all the user terminal devices in the working state except the first user terminal device and the transceivers connected thereto are sent to carry the
  • the second control message of the M1 is sent to the first user terminal device, so that the first user terminal device and the first transceiver connected thereto are initialized with an uplink asymmetry ratio of the M1 time division duplex frame.
  • the method for confirming that the user terminal device and the transceiver other than the first user terminal device and the first transceiver have completed the adjustment of the lower uplink asymmetry ratio may be that each transceiver is connected after the adjustment is completed.
  • the incoming device reports the adjusted completion message, or the access device can also directly determine that the system has completed the adjustment of the lower uplink asymmetry ratio after issuing the above control message and after a predetermined time, such as a time division duplex frame.
  • the access device sends a message advertisement M1 to the first user terminal device through the first transceiver, so that the first user terminal device and the first transceiver start initialization.
  • the notification message carries M1, and the first user equipment and the first transceiver start initialization of the time division duplex frame with the uplink asymmetry ratio M1 below. How to initialize the time-division duplex frame according to the predetermined asymmetry ratio is a well-known technique and will not be described in detail.
  • Step 103 Optionally, after the first user terminal device and the first transceiver connected thereto are initialized, the access device sends, to all user terminal devices in the network system that are in a working state, after the initialization is completed. Carrying the third control message of the M3, so that all the working terminal devices and the transceivers connected thereto adjust the lower uplink asymmetry ratio of the time division duplex frame for message interaction to the M3 at the same time. M3 is equal to the value of M2 or equal to the other lower uplink asymmetry ratio supported by the network system. Specifically, how to adjust the reference step 101 is different from step 101. Step 103 adjusts all the user terminal devices in the working state and the transceivers connected thereto, which includes the first user terminal device that has been initialized and enters the working state and The first transceiver.
  • the access device determines the M1 according to a ratio of a current downlink data flow rate and an uplink data flow rate of each transceiver in the working state except the first transceiver.
  • the original working value M2 of the network system is 2, and the message interaction between each user terminal device and each transceiver is The lower uplink ratio of the duplexed frame is the same as this. Otherwise, the NEXT crosstalk is caused.
  • the current flow rate ratio of the actual line and the downlink data of each user terminal device and the transceiver is not necessarily the same, for example, the second user terminal device.
  • the ratio of the current actual downlink data flow rate to the uplink data flow rate between the third transceiver and the third transceiver may be 3, and the ratio of the current actual downlink data flow rate to the upstream data flow rate between the third user terminal device and the third transceiver may be 4
  • the ratio between the current actual downlink data flow rate and the uplink data flow rate between the fourth user terminal device and the fourth transceiver may be 1/2 or the like.
  • the access device comprehensively considers the current actual uplink between the pairs.
  • Data flow rate ratio, Ml is determined within the range supported by the system.
  • M1 may be selected as 1, and an intermediate value of these ratios or a value closest to the intermediate value may be selected, or a weighted average of the ratios or a value closest to the weighted average may be selected.
  • M1 may be selected as 1, and an intermediate value of these ratios or a value closest to the intermediate value may be selected, or a weighted average of the ratios or a value closest to the weighted average may be selected.
  • all ratios are greater than 1, the minimum of these ratios can be selected.
  • all ratios are less than 1, the maximum of these ratios can be selected.
  • these selected values need to be a value between 1 and M2, including 1.
  • the access device may determine the M1 according to a ratio of a current downlink data flow rate of the access device to an uplink data flow rate.
  • the ratio of the current downlink data flow rate to the uplink data flow rate may be a ratio of the current downlink data flow rate and the uplink data flow rate between the access device and the upstream device connected thereto, or may be the access device and each user in the working state.
  • a value that is closest to this ratio can be selected from the range of lower asymmetry ratios supported by the system. Of course, this value should be between 1 and system M2.
  • the access device disclosed in this embodiment of the present invention may be a multi-dwelling unit.
  • Multi-dwelling unit, MDU which may be a multi-tenant unit (MTU), may be a digital subscriber line access multiplexer (DSLAM), or may be a multi-service access node.
  • MTU multi-tenant unit
  • DLAM digital subscriber line access multiplexer
  • MSAN multi-service access node
  • the disclosed user terminal device may be a modem (modem), which may be a customer premises equipment (customer) Premises equipment, CPE) and so on.
  • modem modem
  • CPE Premises equipment
  • the initialization method disclosed in the embodiment of the present invention adjusts the lower uplink asymmetry ratio of the network system before the user terminal equipment is initialized, so that the lower uplink time slot allocation in the time division duplex frame used for message interaction in the system is more balanced. Therefore, the user terminal device initialized with the adjusted lower uplink asymmetry ratio can complete initialization more quickly, and can improve the success rate of initialization and improve the user experience.
  • Embodiment 2 An embodiment of the present invention provides an access device, which can be applied to a synchronous time division duplex system.
  • the access device includes: a dynamic resource allocation unit and at least two transceiver units connected thereto .
  • the dynamic resource allocation unit is configured to generate a first control message according to an initialization request of the first transceiver unit, and send, to the transceiver unit in an active state other than the first transceiver unit, the first carrier that carries the first ratio M1 a control message, the first transceiver unit is one of the at least two transceiver units, and the M1 is a lower uplink asymmetry ratio pre-existing in the access device a value in the range, the lower uplink asymmetry ratio is a downlink time slot length and an uplink time slot in a time division duplex frame for message interaction between the transceiver unit in the working state and the respective connected user terminal device a ratio of the length, the time slot synchronization of each time division duplex frame used for message
  • the first transceiver unit is configured to receive the second control message, and perform initialization according to the M1 carried in the second control message.
  • the transceiver unit of the access device except the first transceiver unit, is configured to receive the first control message, and adjust respective lower uplink asymmetry ratios according to the M1 carried in the first control message to Said Ml.
  • the transceiver unit is configured to perform message interaction with the user terminal device connected to the network system, and may be used to determine whether initialization is required according to the handshake result between the transceiver unit and the user terminal device connected thereto, if necessary Initializing, the initialization request is sent to the dynamic resource allocation unit, and is configured to, under the control of the dynamic resource allocation unit, send a user to the user terminal device connected thereto to adjust the asymmetry ratio of the next line, and make a message and connect with the user.
  • the interactive content of the terminal includes, but is not limited to, the message interaction in the initialization process before the s howt ime and the business message interaction after entering the show ime.
  • the transceiver unit receives the control of the dynamic resource allocation unit.
  • the dynamic resource allocation unit sends a control message carrying the adjustment value of the lower uplink asymmetry ratio to the transceiver unit.
  • the transceiver unit forwards the message content to the user terminal device connected thereto. And complete the adjustment of the lower asymmetry ratio with the user terminal equipment connected thereto.
  • the first transceiver unit is one of the transceiver units of the access device.
  • the initialization request sent by the transceiver unit to the dynamic resource allocation unit may be that the transceiver unit generates, after the user terminal device connected thereto is powered on, the user terminal device needs to be initialized through a handshake phase.
  • the initialization request may also be generated according to an instruction of another module or may be generated when the transceiver unit initiates initialization.
  • Each of the transceiver units except the first transceiver unit forwards the control message to each user terminal device connected to them, so that each transceiver unit and each user terminal device complete the adjustment of the lower uplink asymmetry ratio.
  • a more preferred solution may be that, in order to avoid NEXT crosstalk, the adjustment of the lower uplink asymmetry ratio of the pair of the transceiver units and the user terminal equipment connected thereto may be simultaneously completed.
  • the dynamic resource allocation unit is configured to send the first control message to the transceiver unit in an active state except the first transceiver unit, and the transceiver unit except the first transceiver unit is specifically used. Receiving the first control message, and adjusting respective lower uplink asymmetry ratios to the M1 according to the M1 carried in the first control message.
  • each transceiver unit can simultaneously The connected user terminal device forwards the first control message carrying M1, and informs the terminal device to adjust the uplink asymmetry ratio. After receiving the first control message, each terminal device sends the next frame of the time division duplex frame to the next uplink.
  • the value of the symmetry ratio is adjusted to M1, and each transceiver unit simultaneously adjusts the lower uplink asymmetry ratio to M1 after issuing the first control message, because the original time division duplex frame time slots on each line pair are synchronized, and because At the same time, the lower uplink asymmetry ratio of the next frame is adjusted, so that the time-division duplex frame slots on the adjusted pairs are also synchronized, so that all the working terminal devices and the corresponding transceiver units can simultaneously complete the uplink.
  • the asymmetry ratio is adjusted so as not to cause crosstalk.
  • the transceiver unit except the first transceiver unit is configured to receive the first control message, according to the specified time and the M1 carried in the first control message, The specified lower time adjusts the respective lower uplink asymmetry ratio to the M1.
  • the first control message may carry the adjusted time at the same time, and the clock may be synchronized to ensure that the corresponding adjustment is completed at the same time.
  • the first control message may also be used to instruct the terminal device and the transceiver unit connected thereto to receive and issue corresponding instructions respectively.
  • Adjust the lower asymmetry ratio for N time division duplex frames Other information that can be used to identify time in each time division duplex frame can also be used to control each line pair while adjusting the lower asymmetry ratio.
  • the corresponding transceiver unit sends a message to the access device to confirm that the uplink asymmetry ratio adjustment is completed.
  • the goal of adjusting the uplink asymmetry ratio is to adjust the original working value M2 before the adjustment to the symmetrical direction, that is, to the direction of 1, because, in general, the following up-symmetric time-division duplex frames are initialized to be preferred.
  • the initialization speed is fast and the success rate is high. Therefore, Ml should be a value between 1 and M2. If M2 is less than 1, then Ml is greater than M2 and less than or equal to 1. If M2 is greater than 1, then Ml is greater than or equal to 1 and less than M2.
  • the value of the M1 can be arbitrarily selected, and the initialization of the first user terminal device can be accelerated, and the initialization success rate is improved.
  • M1 should be selected within the range of the lower uplink asymmetry ratio pre-existing in the access device. This pre-stored range is determined based on the access device and the capabilities of the terminal device connected to it.
  • the dynamic resource allocation unit is further configured to: after the user equipments connected to the transceivers complete the adjustment of the lower uplink asymmetry ratio in the transceiver units and the network system, send and carry the M1
  • the second control message is sent to the first transceiver unit, so that the first transceiver frame is initialized.
  • the dynamic resource allocation unit considers other transceiver units except the first transceiver unit and the user terminal device connected thereto Once the adjustment of the upstream asymmetry ratio is completed.
  • each transceiver unit after receiving the adjustment of the uplink asymmetry ratio, each transceiver unit sends an acknowledgement adjustment complete message to the dynamic resource allocation unit.
  • the second transceiver message carrying the M1 is sent to the first transceiver unit, and the user is notified to start initialization.
  • the first transceiver unit starts the initialization process with the user terminal device connected thereto.
  • the lower uplink asymmetry ratio of the time division duplex frame used in the initialization process is M1. Specific initial The process is a well-known technique and will not be described in detail.
  • the dynamic resource allocation unit is further configured to: when the first transceiver unit and the user terminal device connected to the first transceiver unit are initialized, all the working devices are in an active state.
  • the transceiver unit sends a third control message carrying the M3, so that all the transceiver units in the working state and the user terminal equipment connected thereto adjust the lower uplink asymmetry ratio to the M3, the M3 A value equal to the M2 or equal to the other lower uplink asymmetry ratio in the lower uplink asymmetry ratio range.
  • the first transceiver unit and the user equipment connected thereto may send an announcement message that the initialization has been completed to the dynamic resource allocation unit after the initialization is completed.
  • the dynamic resource allocation unit After confirming that the first transceiver unit and the user terminal device connected thereto complete initialization, the dynamic resource allocation unit sends the lower uplink asymmetry ratio of all the transceiver units in the working state and the user terminal devices connected to them in the control message adjustment system to M3.
  • the dynamic resource allocation unit may also consider that the initialization is completed after a predetermined time after the second control message is sent.
  • the M3 may be the M2 of the system, that is, the value before the lower uplink asymmetry ratio is adjusted to Ml.
  • the M3 may also be determined according to the current downlink data flow rate and the uplink data flow rate of each transceiver unit, or may be determined according to the total current downlink data flow rate and the uplink data flow rate of the access device, and how to determine the M3 and implementation.
  • the method of how to determine Ml in Example 1 can be the same.
  • the dynamic resource allocation unit is further configured to: send, before the generating the first control message, an advertisement message that adjusts an uplink asymmetry ratio to each transceiver unit in an active state, so that the working state is in a working state.
  • each transceiver unit After receiving the notification message, each transceiver unit returns its current downlink data flow rate and uplink data flow rate, and determines the M1 according to the ratio of the current downlink data flow rate and the uplink data flow rate returned by each transceiver unit in the working state. .
  • the dynamic resource allocation unit is further configured to: send, before the generating the first control message, an advertisement message that adjusts an uplink asymmetry ratio to each transceiver unit, so that each transceiver unit receives the After the notification message, the current downlink data flow rate and the uplink data flow rate are returned, and the M1 is determined according to the downlink data flow rate and the uplink data flow rate returned by the transceiver units.
  • the method for determining the M1 is the same as the method for determining the M1 in the first embodiment, and will not be described again.
  • the access device disclosed in this embodiment of the present invention may be a multi-dwelling unit.
  • Multi-dwelling unit, MDU which may be a multi-tenant unit (MTU), may be a digital subscriber line access multiplexer (DSLAM), or may be a multi-service access node.
  • MTU multi-tenant unit
  • DLAM digital subscriber line access multiplexer
  • MSAN multi-service access node
  • ONU optical network unit
  • CO central office
  • the access device disclosed in the embodiment of the present invention adjusts the lower uplink asymmetry ratio of each synchronous time division duplex frame before the user terminal device connected thereto is initialized, and is used in the lower uplink time in the time division duplex frame of the message interaction.
  • the slot allocation is more balanced, so that the user terminal device initialized with the adjusted lower uplink asymmetry ratio can complete initialization more quickly, and can improve the success rate of initialization and improve the user experience.
  • Embodiments of the present invention provide a network system. specific: The network system includes an access device and at least two user terminal devices; the access device is any one of the access devices disclosed in the second embodiment; the user terminal device and the transceiver unit in the access device Connected, each of the transceiver units is connected to only one of the user terminal devices, and each of the user terminal devices is connected to only one of the transceiver units.
  • the network system can be an STDD network system.
  • the access device is configured to send, after the first user terminal device connected to the access device in the discovery system needs to be initialized, to each user terminal device in the system that is in a working state except the first user terminal device. Controlling the message, so that each user terminal device and the access device complete the adjustment of the lower uplink asymmetry ratio, and send a message advertisement M1 to the first user terminal device to enable the initialization, and the control message is carried.
  • the Ml,, ⁇ over-modulated ⁇ network system is used for ⁇ interest
  • the value of the M1 is greater than or equal to 1 and less than M2 of the lower uplink symmetric ratio supported by the system, or the M1 is the lower uplink supported by the network system.
  • a value in the range of symmetric ratios that is greater than M2 and less than or equal to 1, the value of which is the value of the lower uplink asymmetry ratio of the network system before the uplink asymmetry ratio is adjusted to the M1.
  • the access device confirms that the user terminal device of the transceiver unit needs to be initialized according to the initialization request sent by the transceiver unit.
  • the access device After confirming that the transceiver unit and the user terminal device connected thereto need to be initialized, the access device adjusts the time division duplex frame used for message interaction between the access device and the user terminal device other than the user terminal device connected to the transmitting and receiving unit.
  • the lower-upward asymmetry ratio, the direction of this adjustment is adjusted in the direction of symmetry, so that Ml carried in the control information for adjustment should be at a value between M2 and 1, including one.
  • the user terminal device that needs to be initialized is notified for initialization, and the adjustment for the upper and lower asymmetry ratios is completed at the same time.
  • the initialization method 1 is the same as the method in the first embodiment of the present invention.
  • the access device sends a message to each user equipment in the network system, where the message carries the M3 of the lower uplink asymmetry ratio of the network system, so that The network system performs the adjustment of the lower uplink asymmetry ratio at the same time, and the adjusted uplink asymmetry ratio of the network system is the M3, where the M3 is supported by the M2 of the network system or the network system.
  • the specific initialization method is the same as the method in the first embodiment of the present invention.
  • the access device determines the M1 according to a ratio of a current downlink data flow rate and an uplink data flow rate of each user terminal device except the first user terminal device.
  • the current data flow rate refers to the instantaneous data flow rate.
  • the system M2 is 2, and the lower uplink ratio of the time division duplex frame of the message interaction between each user terminal device and each transceiver is the same, otherwise the NEXT crosstalk is caused, but the current user terminals are
  • the ratio of the actual flow rate of the device and the transceiver to the downlink data is not necessarily the same, such as between the second user terminal device and the second transceiver.
  • the ratio of the actual downlink data flow rate to the uplink data flow rate may be 3, and the ratio between the current actual downlink data flow rate and the uplink data flow rate between the third user terminal device and the third transceiver may be 4, and the fourth user terminal device and the The ratio of the current actual downlink data flow rate to the uplink data flow rate between the four transceivers may be 1/2, etc., at which time the access device comprehensively considers the current actual uplink data flow rate ratio between the pairs, which is supported by the system.
  • the access device may determine the M1 according to a ratio of a current downlink data flow rate of the access device to an uplink data flow rate.
  • the ratio of the current downlink data flow rate and the uplink data flow rate may be a ratio of the current downlink data flow rate and the uplink data flow rate between the access device and the upstream device connected thereto, or may be the access device and the first user terminal device.
  • a value that is closest to this ratio can be selected from the range of lower asymmetry ratios supported by the system. Of course, this value should be between 1 and system M2.
  • the user terminal device in the network system is configured to perform adjustment of a lower uplink asymmetry ratio according to an instruction of the access device, and perform message interaction for the transceiver unit in the access device connected thereto.
  • the user terminal device When the user terminal device is a newly added user terminal device, it can also be used to initiate a handshake with the transceiver unit connected to the access device, and notify the user terminal device that the initialization is required by the handshake, and the network disclosed in the embodiment of the present invention System, adjusting an upper asymmetry ratio of each synchronous time division duplex of the network system before initializing the user terminal equipment in the system; - a user terminal device that initializes the network with the adjusted lower uplink asymmetry ratio The initialization can be completed faster, and the success rate of initialization can be improved, and the user experience is improved.
  • Embodiments of the present invention further provide a network device, which can be applied to a synchronous time division duplex (STDD) system.
  • STDD synchronous time division duplex
  • the system includes a processor, a memory, and a transceiver, where the processor is coupled with the latter two.
  • the network device can be used to perform the method as in the first embodiment.
  • the transceiver is configured to receive a message from the outside of the network device and send the message to the outside, specifically, having the function of the transceiver unit in the second embodiment; the processor processes the received message, specifically, as implemented The function of the dynamic resource allocation unit in the second example; the memory is used to store information from the processor.
  • the processor may be a general-purpose processor, such as an integrated circuit IC, and the program executed by the processor may be stored in a memory; the processor may also be an application specific integrated circuit such as an ASIC (Application Specific) Integrated Circuit) or FPGA (Field-Programmable gate array), or other class 4 functional devices.
  • , : ⁇ , ' adjust the lower uplink asymmetry ratio of the STDD system before the user terminal equipment is initialized, so that the user terminal device that initializes the next lower uplink asymmetry ratio can complete the initialization more quickly. And it can improve the success rate of initialization and improve the user experience.
  • Computer readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one location to another.
  • a storage medium may be any available media that can be accessed by a computer.
  • computer readable media may comprise RAM, ROM, EEPROM, CD-ROM or other optical disk storage, disk storage media or other magnetic storage device, or can be used for carrying or storing in the form of an instruction or data structure.
  • the desired program code and any other medium that can be accessed by the computer may suitably be a computer readable medium.
  • the software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, then the coaxial cable , fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, wireless, and microwaves are included in the fixing of the associated media.
  • coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, wireless, and microwaves are included in the fixing of the associated media.
  • a disk and a disc include a compact disc (CD), a laser disc, a disc, a digital versatile disc (DVD), a floppy disk, and a Blu-ray disc, wherein the disc is usually magnetically copied, and the disc is The laser is used to optically replicate the data. Combinations of the above should also be included within the scope of the computer readable media.

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Abstract

本发明提供了一种初始化方法、设备和系统,应用于通信技术领域。初始化的过程具体包括:接入设备根据初始化请求调节系统中用于消息交互的同步时分双工帧的下上行不对称比率,第一用户终端设备以调整过的下上行不对称比率进行初始化。本发明通过在第一用户终端设备初始化之前先调整下上行不对称比率,使系统中用于消息交互的同步时分双工帧中的下上行时隙分配更为均衡,从而使得第一用户终端设备能更快地完成初始化,并且能提高初始化的成功率,提高了用户体验。

Description

一种初始化方法、 设备和系统 技术领域
本发明涉及通信技术领域, 具体涉及一种初始化方法、 设备和系统 (
背景技术
下一代铜线宽带接入技术 G.fast用于在通信业务从光纤到分线点
( distribution point )后, 使用铜线来提供从分线点到用户的高速接入。 由于 铜线的传输距离缩短, 使得铜线信道具有了更高的传输能力。 有效地实现这 些传输能力, 就能为未来高带宽业务提供带宽保障。 国际电信联盟 ITU-T已经 釆纳时分双工 ( time division duplexing , TDD )作为下一代铜线宽带接入标 准 G.fast的双工方式。 TDD是一种半双工的复用方式, 即下上行都占用整个频 段的所有子载波来发送信息, 但需要由系统分配时隙分别进行。 同一时隙一 端收发器只能发送或接收, 而对端在该时隙只能釆取相反的操作。 一个 TDD 帧包含若干时隙, 可以分配给上行时隙、 下行时隙和保护时隙。 当一个 TDD 帧长度确定后, 理论上下上行时隙可以自由分配。 但在大多数的实际应用场 景中, 对下行速率的需求往往要大于对上行速率的需求, 即下上行速率不对 。 ^TDD†贞格 中 体现 ^是 下行传输^隙长度要比上^传输时隙 度 即下行时隙长度和上行时隙长度的比值。
由于 TDD系统中下上行完全共用整个频谱, 这就要求不同线对之间的下 上行时隙必须严格同步, 否则会产生严重的近端串扰( near end cross-talk, NEXT ) , 产生近端串扰的原理如图 1所示(此图略去了保护时隙) , 图中 DS ( downstream )表示下行时隙 , US( upstream )表示上行时隙 , SS( sync symbol ) 表示同步符号, 用于超帧同步。 线对是指由接入设备中的收发器、 与收发器 连接的用户终端设备以及两者之间的双绞线所组成的通信链路。 对 G.fast而 言, 同一分线点 (distribution point ) 的所有线对都需要下上行同步。 这种不 同线对之间下上行时隙完全同步的时分双工系统叫 #丈同步时分双工
( synchronous TDD, STDD )系统, 如图 2所示, 所有线对的同一时刻的 SS、 DS以及 US——对齐。 在 STDD系统中, 不同线对的下上行不对称比率是相同 的, 当有新加入线对需要初始化时, 为了避免严重的 NEXT串扰, 此线对的初 始化过程所使用的时分双工帧的下上行不对称比率也需要和整个 STDD系统 的下上行不对称比率保持一致。 因此, 新加入线对必须按照 showtime线对的 下上行不对称比率来进行初始化。 其中, showtime线对是指 STDD系统处于工 作状态的线对。
然而, 当 STDD系统的下上行不对称程度较大时,会给初始化过程带来很 多不利的影响。 与下上行对称的 STDD系统以及下上行不对称程度较小的 STDD系统相比, 下上行不对称程度大的 STDD系统存在初始化时间长, 初始 化失败的机率大的问题, 影响用户体验。 发明内容
为了克服现有下上行不对称程度大的 STDD系统中存在的初始化时间长、 初始化失败的机率大的问题, 本发明实施例提供了一种初始化方法、 设备和 系统, 具体的:
根据本发明实施例的第一方面, 提供一种初始化的方法, 应用于网络系 统中, 所述网络系统包括接入设备和至少两个用户终端设备, 所述接入设备 中包括至少两个收发器, 其中每个所述收发器只与一个所述用户终端设备相 连, 每个所述用户终端设备只与一个所述收发器相连, 相互连接的收发器和 用户终端设备之间使用时分双工帧进行消息交互,各个收发器和与其相连的 方法包括: 所述接入设备确定所述网络系统中的 ^ 用户 ^端设备以及与其 相连的所述接入设备中的第一收发器需要初始化后, 向所述网络系统中的除 所述第一用户终端设备以外的所有处于工作状态的用户终端设备发送携带有 第一比率 Ml的第一控制消息,使得除所述第一用户终端设备以外的所有处于 工作状态的用户终端设备以及与其连接的收发器将下上行不对称比率都调整 至第一比率 Ml , 所述下上行不对称比率为所述处于工作状态的各用户终端设 备与各自所连接的收发器之间用于消息交互的时分双工帧中下行时隙长度与 上行时隙长度的比值, 所述第一比率 Ml为所述网络系统所支持的下上行不对 称比率范围中的值, 其中, 1 M1 < M2或者 M2 < M1 1 , 第二比率 M2为所 述处于工作状态的各用户终端设备与各自连接的收发器之间用于消息交互的 时分双工帧的下上行不对称比率被调整至所述 Ml之前的值; 所述接入设备在 确定除所述第一用户终端设备以外的所有处于工作状态的用户终端设备以及 与其相连的各收发器将下上行不对称比率都调整至 Ml后, 发送携带所述 Ml 的第二控制消 ^ 所述第 ^用户终 设备,,、使寻所述 ^一用户 ^端设备、以及 行初始化。
在第一方面的第一种可能的实现方式中, 可选的, 所述向所述网络系统 中的除所述第一用户终端设备以外的所有处于工作状态的用户终端设备发送 携带有第一比率 Ml的第一控制消息具体为: 所述接入设备向所述网络系统中 的除所述第一用户终端设备以外的所有处于工作状态的用户终端设备同时发 送携带有第一比率 Ml的第一控制消息,从而使得除所述第一用户终端设备以 外的所有处于工作状态的用户终端设备以及与其相连的各收发器同时将下上 行不对称比率都调整至所述 Ml。
在第一方面的第二种可能的实现方式中, 进一步的, 所述第一控制消息 中携带指定时间, 使得除所述第一用户终端设备以外的所有处于工作状态的 用户终端设备以及与其相连的各收发器在所述指定时间将下上行不对称比率 都调整至所述 Ml。
在第一方面的第三种可能的实现方式中, 可选的, 所述接入设备在所述 第一用户终端设备以及与其相连的所述第一收发器初始化完成后, 向所述网 络系统中的所有处于工作状态的用户终端设备发送携带有第三比率 M3的第 三控制消息, 使得所有处于工作状态的用户终端设备和与其相连的各收发器 同时将用于消息交互的时分双工帧的下上行不对称比率都调整至所述 M3 , 所 述 M3等于所述 M2或等于所述网络系统所支持的其他下上行不对称比率的 值。
在第一方面的第四种可能的实现方式中, 可选的, 所述接入设备根据除 所述第一收发器外的所有处于工作状态的各收发器当前的下行数据流速和上 行数据流速的比值确定所述 Ml ; 或者, 所述接入设备根据所述接入设备当前 的下行数据流速和上行数据流速的比值确定所述 Ml。
本发明实施例所揭示的第一方面的初始化方法, 通过在用户终端设备初 始化之 It先调整网络系统的各同步时分双工帧的下上行不对称比率, 使系 整后的下上行不对称比率进行初始化的用户终端设备能更快地完成初始化, 并且能提高初始化的成功率, 提高了用户体验。
根据本发明实施例的第二方面, 提供一种接入设备, 所述接入设备包括: 动态资源分配单元和与其相连的至少两个收发单元;所述动态资源分配单元, 用于根据第一收发单元的初始化请求生成第一控制消息, 并向除所述第一收 发单元外的处于工作状态的收发单元发送携带有第一比率 Ml的第一控制消 息, 所述第一收发单元为所述至少两个收发单元中的一个, 所述 Ml为预存在 所述接入设备中的下上行不对称比率范围中的值, 所述下上行不对称比率为 所述处于工作状态的收发单元与各自所连接的用户终端设备之间的用于消息
M2或者 M2 < M1 < 1 ,所述 M2为所 下上行不对称比率被调整至所述 Ml之前 的值; 在确定所述处于工作状态的收发单元以及各自所连接的用户终端设备 完成下上行不对称比率的调整后,发送携带所述 Ml的第二控制消息给所述第 一收发单元; 所述第一收发单元, 用于接收所述第二控制消息, 根据所述第 二控制消息中携带的所述 Ml进行初始化; 所述接入设备中除第一收发单元外 的收发单元, 用于接收所述第一控制消息, 根据所述第一控制消息中携带的 所述 Ml , 将各自的下上行不对称比率调整为所述 Ml ; 其中, 各个所述收发 单元与各自所连接的用户终端设备之间用于消息交互的各时分双工帧的各个 时隙均同步。
在第二方面的第一种可能的实现方式中, 可选的, 所述动态资源分配单 元, 具体用于向除第一收发单元外的所有处于工作状态的收发单元同时发送 所述第一控制消息; 各个所述除第一收发单元外的收发单元, 具体用于接收 所述第一控制消息, 根据所述第一控制消息中携带的所述 Ml , 同时将各自的 下上行不对称比率调整至所述 Ml。
在第二方面的第二种可能的实现方式中, 进一步的, 所述第一控制消息 中还携带有指定时间; 所述除第一收发单元外的收发单元, 具体用于接收所 述第一控制消息, 根据所述第一控制消息中携带的指定时间和所述 Ml , 在所 述指定时间将各自的下上行不对称比率调整至所述 Ml。
在第二方面的第三种可能的实现方式中, 可选的, 所述动态资源分配单 元还用于在所述第一收发单元以及与所述第一收发单元相连的用户终端设备 初始化完成后, 向所述接入设备中的所有处于工作状态的收发单元发送携带 有 M3的第三控制消息, 所述 M3等于所述 M2或等于所述下上行不对称比率范 围中的其他下上行不对称比率的值; 所述接入设备中的收发单元还用于根据 该第三控制消息, 同时将各自的下上行不对称比率都调整至所述 M3。
在第二方面的第四种可能的实现方式中, 可选的, 所述动态资源分配单 元还用于在生成所述第一控制消息前, 向处于工作状态的收发单元发送调整 下上行不对称比率的通告消息, 并根据除处于工作状态的收发单元返回的当 前的下行数据流速和上行数据流速的比值确定所述 Ml ; 或者, 所述动态资源 分配单元还用于在生成所述第一控制消息前, 向处于工作状态的收发单元发 送调整下上行不对称比率的通告消息, 并根据处于工作状态的收发单元返回 的下行数据流速和上行数据流速确定所述 Ml。
本发明实施例所揭示的第二方面的接入设备, 通过在与其连接的用户终 端设备初始化之前先调整各同步时分双工帧的下上行不对称比率 使用于消 上行不对称比率进行初始化的用户终端设备能更快地完成初始化, 并且能提 高初始化的成功率, 提高了用户体验。
根据本发明实施例的第三方面, 提供一种网络系统, 所述网络系统包括 接入设备和至少两个用户终端设备; 所述接入设备为本发明实施例的第二方 面中所揭示的任意一种接入设备; 所述用户终端设备与所述接入设备中的收 发单元通过双绞线连接, 所述接入设备中的每个收发单元只与一个所述用户 终端设备连接, 每个所述用户终端设备只与所述接入设备中的一个收发单元 连接。
本发明实施例所揭示的第三方面的网络系统, 通过在系统中的用户终端 设备初始化之前先调整网络系统的各同步时分双工帧的下上行不对称比率, 衡, 从而使得以调整后的下上行不对称比率进行初始化的用户终端设备能更 快地完成初始化, 并且能提高初始化的成功率, 提高了用户体验。
附图说明
为了更清楚地说明本发明及相关实施例, 提供以下附图: 图 2为现有技术中不同线对之间时隙同步示意图;
图 3为本发明实施例一中同步时分双工系统的初始化方法流程图; 图 4为本发明实施例一中同步时分双工系统的连接结构示意图; 图 5为本发明实施例二中接入设备的结构示意图;
图 6为本发明实施例三中用户终端设备的结构示意图。
具体实施方式
为使本发明的目的、 技术方案和优点更加清楚明白, 下面结合实施例和 附图, 对本发明做进一步详细说明。 在此, 本发明的示意性实施例及其说明 用于解释本发明, 但并不作为对本发明的限定。
实施方式一: 本发明实施例提供了一种初始化方法, 可以应用于网络系 统中, 如图 3所示, 该方法具体包括:
该网络系统, 如图 4所示, 包括接入设备和至少两个用户终端设备, 所述 接入设备中包括至少两个收发器, 其中每个所述收发器只与一个所述用户终 端设备相连, 每个所述用户终端设备只与一个所述收发器相连, 相互连接的 收发器和用户终,设备之 ^用时分双工顿进行消息交 ^,各^收发器 ^与、 统可以是同步时分双工( synchronous TDD, STDD ) 系统。 处于工作状态是 指处于 showtime状态 , 所谓 showtime是指已经完成了初始化过程并开始在承 载通道中发送数据的状态。 一个收发器与一个用户终端设备以及连接它们的 双绞线可以称为一个线对。
步骤 S101 , 所述接入设备确定所述网络系统中的第一用户终端设备以及 与其相连的所述接入设备中的第一收发器需要初始化后, 向所述网络系统中 的除所述第一用户终端设备以外的所有处于工作状态的用户终端设备发送第 一控制消息, 使得除所述第一用户终端设备以外的所有处于工作状态的用户 终端设备以及与其相连的各收发器将下上行不对称比率都调整至 Ml , 所述第 一控制消息携带所述 Ml , 所述下上行不对称比率为所述接入设备中的各收发 器与所述处于工作状态的各用户终端设备之间用于消息交互的时分双工帧中 下行时隙长度与上行时隙长度的比值, 所述 Ml为所述网络系统所支持的下上 行不对称比率范围中的值, 其中, 1 M1 < M2或者 M2 < M1 1 , 所述 M2为 所述接入设备中的各收发器与所述处于工作状态的格用户终端设备之间用于 消息交互的时分双工帧的下上行不对称比率被调整至所述 Ml之前的值。
接入设备可以通过与第一用户终端设备握手, 发现第一用户终端设备以 及与其相连的第一收发器需要初始化。 可选的, 接入设备确定需要初始化的 方法可以是, 第一用户终端设备上电后, 会与接入设备进行握手, 如何握手 在 G. 994. 1标准中已有定义, 不再详述。 通过握手阶段, 接入设备发现握手阶 段之后选择的是进入初始化流程的信道发现阶段, 此时还未进入信道发现阶 段, 说明第一用户终端设备以及与其相连的第一收发器需要初始化。 可选的, 接入设备也可以根据需要或者根据来自用户侧或者网络侧的指令确定相应的 终端设备及与其连接的收发器需要初始化。 接入设备通过各收发器向与收发 器连接的处于工作状态的用户终端设备发送第一控制消息。
可选的, 更优选的方案可以是, 为避免 NEXT串扰, 各线对的下上行不对 称比率的调整可以同时完成。 例如, 所述向所述网络系统中的除所述第一用 户终端设备以外的所有处于工作状态的用户终端设备发送携带有第一比率 Ml的第一控制消息具体同时发送 ,从而使得除所述第一用户终端设备以外的 所有处于工作状态的用户终端设备以及与其相连的各收发器同时将下上行不 对称比率都调整至所述 Ml。 具体的, 例如各收发器可同时向与其相连的用户 终端设备发送携带有 Ml的第一控制消息,告知终端设备调整下上行不对称比 率, 各终端设备在收到第一控制消息后将下一帧的时分双工帧的下上行不对 称比率的值即调为 Ml , 各收发器在发出第一控制消息后也同时将下上行不对 称比率调为 Ml , 因为各条线对上的原时分双工帧时隙同步, 又因为系同时调 整下一帧的下上行不对称比率, 故调整后的各线对上的时分双工帧时隙也同 步, 即可保证所有处于工作状态的用户终端设备和相应的收发器同时完成下 上行不对称比率的调整, 从而不会引起串扰。 另一种可选的方法, 所述向所 述网络系统中的除所述第一用户终端设备以外的所有处于工作状态的用户终 端设备发送携带有第一比率 Ml的第一控制消息具体同时发送,从而使得除所 述第一用户终端设备以外的所有处于工作状态的用户终端设备以及与其相连 的各收发器同时将下上行不对称比率都调整至所述 Ml。 具体的, 如果所述网 络中的接入设备和各用户终端设备时钟同步, 所述第一控制消息可以同时携 带调整的时间, 因为时钟同步, 也可保证同时完成相应的调整。 当然, 也可 通过第一控制消息指令终端设备以及与其连接的收发器分别在收到及发出相 应的指令后第 N个时分双工帧时调整下上行不对称比率。 每个时分双工帧中 可用于标识时间的其他信息也可用于控制各线对同时调整下上行不对称比 率。 可选的, 由这些用户终端设备及与其相连的收发器组成的线对完成下上 行不对称比率的调整后, 相应的收发器向接入设备中发送消息确认下上行不 对称比率调整已完成。
调整下上行不对称比率的目标是把系统在调整前的原工作值 M2往对称 的方向调, 即往 1的方向调整, 因为大体来说, 以下上行对称的时分双工帧进 行初始化为较优选择, 初始化速度快, 成功率高。 故 Ml应当为 1与 M2之间的 一个值, 如果 M2小于 1 , 那么 Ml大于 M2并小于或等于 1 , 如果 M2大于 1 , 那 么 Ml大于或等于 1并小于 M2。可选的,在以上范围内,可任意选取 Ml的取值, 都能加快第一用户终端设备的初始化, 提高初始化成功率。 当然, Ml应当在 系统所能支持的下上行不对称比率的范围内选取。 可选的, 系统所能支持的 下上行不对称比率的范围预存在所述的接入设备中。
步骤 S102 , 所述接入设备在除所述第一用户终端设备以外的所有处于工 作状态的用户终端设备以及与其相连的各收发器将下上行不对称比率都调整 至 Ml后, 发送携带所述 Ml的第二控制消息给所述第一用户终端设备, 使得 所述第一用户终端设备以及与其相连的所述第一收发器以下上行不对称比率 为所述 Ml的时分双工帧进行初始化。
可选的, 确认系统中除第一用户终端设备及第一收发器外其他的用户终 端设备及收发器已完成下上行不对称比率的调整的方法可以是, 各收发器在 调整完成后向接入设备上报已调整完成的消息, 或者接入设备也可在发出上 述的控制消息并经过预定时间后, 如一个时分双工帧后, 即可直接认为系统 已完成下上行不对称比率的调整。 接入设备通过第一收发器向第一用户终端 设备发送消息通告 Ml , 使第一用户终端设备和第一收发器开始初始化。 通告 消息中携带了 Ml , 第一用户终端设备和第一收发器以下上行不对称比率为 Ml的时分双工帧开始初始化。 具体根据既定不对称比率的时分双工帧如何进 行初始化, 为公知技术, 不再详述。
步骤 103 , 可选的, 所述接入设备在所述第一用户终端设备以及与其相连 的所述第一收发器初始化完成后, 向所述网络系统中的所有处于工作状态的 用户终端设备发送携带有 M3的第三控制消息,使得所有处于工作状态的用户 终端设备和与其相连的各收发器同时将用于消息交互的时分双工帧的下上行 不对称比率都调整至所述 M3 , 所述 M3等于所述 M2或等于所述网络系统所支 持的其他下上行不对称比率的值。 具体如何调节参考步骤 101 , 与步骤 101不 同是的步骤 103调整的是所有的处于工作状态的用户终端设备以及与其连接 收发器, 这其中包括了已经初始化完成进入工作状态的第一用户终端设备和 第一收发器。
可选的, 所述接入设备根据除所述第一收发器外的所有处于工作状态的 各收发器当前的下行数据流速和上行数据流速的比值确定所述 Ml。 例如, 所 述网络系统原工作值 M2为 2, 各用户终端设备及各收发器之间消息交互的时 分双工帧的下上行比率与此相同, 否则会造成 NEXT串扰,但当前各用户终端 设备及收发器的实际上行与下行的数据的流速比值并不一定与此相同, 比如 第二用户终端设备与第二收发器之间的当前实际下行数据流速与上行数据流 速的比值可能为 3,第三用户终端设备与第三收发器之间的当前实际下行数据 流速与上行数据流速的比值可能为 4,第四用户终端设备与第四收发器之间的 当前实际下行数据流速与上行数据流速的比值可能为 1/2等等, 这时接入设备 综合考量各线对之间的当前实际下上行数据流速比值, 在系统支持的范围内 确定 Ml。 例如, Ml可选 1 , 也可以选择这些比值中中间值或者与该中间值最 近的一个值, 也可以选取这些比值的加权平均值或者与该加权平均值最近的 一个值。 当所有的比值都大于 1时, 可以选择这些比值中的最小值, 当所有比 值都小于 1时, 可以选择这些比值中的最大值。 当然, 这些选取的值需为 1与 M2之间的一个值, 包括 1。
可选的, 接入设备可以根据接入设备当前的下行数据流速和上行数据流 速的比值确定所述 Ml。 当前的下行数据流速和上行数据流速的比值可以是该 接入设备与其相连的上游设备之间的当前下行数据流速和上行数据流速的比 值, 也可以是该接入设备与处于工作状态的各用户终端设备之间的当前下行 数据流速的总和和上行数据流速的总和的比值。 可以在系统所支持的下上行 不对称比率范围中选取一个离这个比值最近的值, 当然这个值应当在 1与系统 M2之间。
可选的, 本发明实施例所揭示的接入设备可以是多住户单元
( multi-dwelling unit , MDU ) ,可以是多商户单元( multi-tenant unit , MTU ) , 可以是数字用户线接入复接器 (digital subscriber line access multiplexer , DSLAM)、 可以是多业务接入节点 ( multiservice access node , MSAN ) , 也 可以是光网络单元 ONU, 也可以是中心局 (central office, CO )设备等, 所 揭示的用户终端设备可以是调制解调器 ( modem ) , 可以是用户驻地设备 ( customer premises equipment, CPE )等等。
本发明实施例所揭示的初始化方法, 通过在用户终端设备初始化之前先 调整网络系统的下上行不对称比率, 使系统中用于消息交互的时分双工帧中 的下上行时隙分配更为均衡, 从而使得以调整后的下上行不对称比率进行初 始化的用户终端设备能更快地完成初始化, 并且能提高初始化的成功率, 提 高了用户体验。
实施方式二: 本发明实施例提供一种接入设备, 可应用于同步时分双工 系统中, 如图 5所示, 该接入设备包括: 动态资源分配单元和与其相连的至少 两个收发单元。 所述动态资源分配单元, 用于根据第一收发单元的初始化请 求生成第一控制消息, 并向除所述第一收发单元外的处于工作状态的收发单 元发送携带有第一比率 Ml的第一控制消息, 所述第一收发单元为所述至少两 个收发单元中的一个, 所述 Ml为预存在所述接入设备中的下上行不对称比率 范围中的值, 所述下上行不对称比率为所述处于工作状态的收发单元与各自 所连接的用户终端设备之间的用于消息交互的时分双工帧中下行时隙长度与 上行时隙长度的比值, 所述处于工作状态的收发单元与各自所连接的用户终 端设备之间用于消息交互的各时分双工帧的时隙同步, 其中, 1 M1 < M2或 者 M2 < M1 < 1 ,所述 M2为所述下上行不对称比率被调整至所述 Ml之前的值; 在确定所述处于工作状态的收发单元以及各自所连接的用户终端设备完成下 上行不对称比率的调整后,发送携带所述 Ml的第二控制消息给所述第一收发 单元。 所述第一收发单元, 用于接收所述第二控制消息, 根据所述第二控制 消息中携带的所述 Ml进行初始化。 所述接入设备中除第一收发单元外的收发 单元,用于接收所述第一控制消息,根据所述第一控制消息中携带的所述 Ml , 将各自的下上行不对称比率调整为所述 Ml。
具体的, 收发单元用于跟所述网络系统中与其相连的用户终端设备进行 消息交互, 可以用于根据所述收发单元及与其连接的用户终端设备之间的握 手结果确定是否需要初始化, 如果需要初始化则向动态资源分配单元发送初 始化请求, 用于在动态资源分配单元的控制下向与其连接的用户终端设备发 调整下 ^行不对称比 ^的,制消息 并与所述 其 ^接的用户终端 备在 交互的内容包括但不限于 s howt ime之前的初始化过程中的消息交互以及进入 showt ime之后的业务消息交互。 在握手阶段, 如果发现需要该收发单元及与 其连接的用户终端设备组成的线对需要初始化, 则向动态资源分配单元发送 初始化请求。 收发单元接受动态资源分配单元的控制可以是动态资源分配单 元向收发单元发送携带有下上行不对称比率的调整值的控制消息, 收发单元 收到控制消息后向与其连接的用户终端设备转发消息内容, 并与跟其连接的 用户终端设备完成下上行不对称比率的调整。 第一收发单元为该接入设备的 收发单元中的一个。 可选的, 该收发单元向动态资源分配单元发送的初始化 请求, 可以是该收发单元在与其连接的用户终端设备上电后通过握手阶段发 现该用户终端设备需要进行初始化后生成的。 可选的, 初始化请求也可以是 根据其他模块的指令生成或者可以是收发单元主动发起初始化时生成的。 所 述除了第一收发单元外的各收发单元, 通过同时向与它们连接的各用户终端 设备转发所述控制消息, 以实现各收发单元以及各用户终端设备完成下上行 不对称比率的调整。
可选的, 更优选的方案可以是, 为避免 NEXT串扰, 各处于工作状态的收 发单元和与其连接的用户终端设备组成的线对的下上行不对称比率的调整可 以同时完成。 例如, 所述动态资源分配单元, 具体用于向除第一收发单元外 的处于工作状态的收发单元同时发送所述第一控制消息, 而所述除第一收发 单元外的收发单元, 具体用于接收所述第一控制消息, 根据所述第一控制消 息中携带的所述 Ml , 同时将各自的下上行不对称比率调整至所述 Ml。 具体 的, 各收发单元接到动态资源分配单元发送的第一控制消息后, 可同时向与 其相连的用户终端设备转发携带有 Ml的第一控制消息, 告知终端设备调整下 上行不对称比率, 各终端设备在收到第一控制消息后将下一帧的时分双工帧 的下上行不对称比率的值即调为 Ml , 各收发单元在发出第一控制消息后也同 时将下上行不对称比率调为 Ml , 因为各条线对上的原时分双工帧时隙同步, 又因为系同时调整下一帧的下上行不对称比率, 故调整后的各线对上的时分 双工帧时隙也同步, 即可保证所有处于工作状态的用户终端设备和相应的收 发单元同时完成下上行不对称比率的调整, 从而不会引起串扰。 另一种可选 的方法, 所述除第一收发单元外的收发单元, 具体用于接收所述第一控制消 息, 根据所述第一控制消息中携带的指定时间和所述 Ml , 在所述指定时间将 各自的下上行不对称比率调整至所述 Ml。 具体的, 如果所述网络中的接入设 备和各用户终端设备时钟同步,所述第一控制消息可以同时携带调整的时间, 因为时钟同步, 也可保证同时完成相应的调整。 当然, 也可通过第一控制消 息指令终端设备以及与其连接的收发单元分别在收到及发出相应的指令后第
N个时分双工帧时调整下上行不对称比率。每个时分双工帧中可用于标识时间 的其他信息也可用于控制各线对同时调整下上行不对称比率。 可选的, 由这 些用户终端设备及与其相连的收发单元组成的线对完成下上行不对称比率的 调整后, 相应的收发单元向接入设备中发送消息确认下上行不对称比率调整 已完成。
调整下上行不对称比率的目标是把调整前的原工作值 M2往对称的方向 调, 即往 1的方向调整, 因为大体来说, 以下上行对称的时分双工帧进行初始 化为较优选择,初始化速度快, 成功率高。故 Ml应当为 1与 M2之间的一个值, 如果 M2小于 1 , 那么 Ml大于 M2并小于或等于 1 , 如果 M2大于 1 , 那么 Ml大于 或等于 1并小于 M2。 可选的, 在以上范围内, 可任意选取 Ml的取值, 都能加 快第一用户终端设备的初始化, 提高初始化成功率。 当然, Ml应当在预存在 所述接入设备中的下上行不对称比率的范围内选取。 这个预存的范围是根据 接入设备和与其连接的终端设备性能确定的。
动态资源分配单元, 还用于在所述各收发单元以及所述网络系统中与所 述各收发 元相连的各用户终端设备完成所述下上行不对称比率的调整后, 发送携带了所述 Ml的第二控制消息给所述第一收发单元, 使得所述第一收发 帧进行初始化。 可选的, 动态资源分配单元在其 出第一控制消息后特定的 时间后, 例如一个时分双工帧后, 即认为除了第一收发单元外的其他的收发 单元及与它们连接的用户终端设备一完成下上行不对称比率的调整。可选的 , 各收发单元在完成下上行不对称比率的调整后, 向动态资源分配单元发送确 认调整完成消息。在所述各收发单元及与其连接的用户终端设备完成调整后, 向第一收发单元发送携带有 Ml的第二控制消息, 通知其开始初始化。 第一收 发单元收到第二控制消息后, 与跟其连接的用户终端设备开始初始化流程。 初始化流程过程中使用的时分双工帧的下上行不对称比率为 Ml。 具体的初始 化流程为公知技术, 不再详述。
可选的, 所述动态资源分配单元还用于在所述第一收发单元以及与所述 第一收发单元相连的用户终端设备初始化完成后, 向所述接入设备中的所有 处于工作状态的收发单元发送携带有 M3的第三控制消息,使得所述接入设备 中的所有处于工作状态的收发单元及与其连接的用户终端设备同时将下上行 不对称比率调整至所述 M3 , 所述 M3等于所述 M2或等于所述下上行不对称比 率范围中的其他下上行不对称比率的值。 可选的, 第一收发单元以及与其相 连的用户终端设备在完成初始化后, 可向动态资源分配单元发送已完成初始 化的通告消息。 动态资源分配单元在确认第一收发单元及与其连接用户终端 设备完成初始化后, 发送控制消息调节系统中所有处于工作状态的收发单元 及与它们连接的用户终端设备的下上行不对称比率至 M3。 可选的, 动态资源 分配单元也可以在发出所述第二控制消息后预定时间后即认为初始化已完 成。 可选的, 该 M3可以是系统的 M2 , 也即在下上行不对称比率调节到 Ml前的 值。 可选的, M3也可以根据当前各收发单元的当前下行数据流速和上行数据 流速确定, 或者也可以根据该接入设备的总的当前下行数据流速和上行数据 流速确定, 具体如何确定 M3与实施例一中如何确定 Ml的方法可以相同。
可选的, 所述动态资源分配单元还用于在生成所述第一控制消息前, 向 所述处于工作状态的各收发单元发送调整下上行不对称比率的通告消息, 使 得所述处于工作状态的各收发单元收到所述通告消息后返回其当前的下行数 据流速和上行数据流速, 根据所述处于工作状态的各收发单元返回的当前的 下行数据流速和上行数据流速的比值确定所述 Ml。 可选的, 所述动态资源分 配单元还用于在生成所述第一控制消息前, 向所述各收发单元发送调整下上 行不对称比率的通告消息, 使得所述各收发单元收到所述通告消息后返回其 当前的下行数据流速和上行数据流速, 根据所述各收发单元返回的下行数据 流速和上行数据流速确定所述 Ml。 具体如何确定 Ml的方法与实施例一中确 定 Ml的方法相同, 不再赘述。
可选的, 本发明实施例所揭示的接入设备可以是多住户单元
( multi-dwelling unit , MDU ) ,可以是多商户单元( multi-tenant unit , MTU ) , 可以是数字用户线接入复接器 (digital subscriber line access multiplexer , DSLAM)、 可以是多业务接入节点 ( multiservice access node , MSAN ) , 也 可以是光网络单元 ONU, 也可以是中心局 (central office, CO )设备等
本发明实施例所揭示的接入设备, 通过在与其连接的用户终端设备初始 化之前先调整各同步时分双工帧的下上行不对称比率, 使用于消息交互的时 分双工帧中的下上行时隙分配更为均衡, 从而使得以调整后的下上行不对称 比率进行初始化的用户终端设备能更快地完成初始化, 并且能提高初始化的 成功率, 提高了用户体验。
实施方式三: 本发明实施例提供一种网络系统。 具体的: 所述网络系统包括接入设备和至少两个用户终端设备; 所述接入设备为 实施例二中揭示的任意一种接入设备; 所述用户终端设备与所述接入设备中 的收发单元连接, 每个所述收发单元只与一个所述用户终端设备连接, 每个 所述用户终端设备只与一个所述收发单元连接。该网络系统可以是 STDD网络 系统。
具体的, 接入设备用于在发现系统中与该接入设备连接的第一用户终端 设备需要初始化后, 向系统中除所述第一用户终端设备外的处于工作状态的 各用户终端设备发送控制消息, 使得所述各用户终端设备与所述接入设备完 成下上行不对称比率的调整, 向所述第一用户终端设备发送消息通告 Ml , 使 始化,、 ^斤述控制消息携 ^所述 Ml、, ^过调 ^后的所 ^网络 统中用于^息交
值,所述 Ml为所述 ^络系统所支持的下上行不一对称比率^围中一的大于或等于 1 并小于 M2的值, 或者所述 Ml为所述网络系统所支持的下上行不对称比率范围 中的大于 M2并小于或等于 1的值,所述 M2为所述网络系统在其下上行不对称比 率被调节到所述 Ml之前的下上行不对称比率的值。 接入设备根据其收发单元 发送的初始化请求确认与该收发单元的用户终端设备需要初始化。 在确认该 收发单元及与其连接的用户终端设备需要初始化后, 接入设备调节接入设备 与除了与发送请求的收发单元连接用户终端设备外的用户终端设备之间消息 交互使用的时分双工帧的下上向不对称比率, 这种调节的方向是向对称的方 向调节, 故携带在用于调节的控制信息中的 Ml应当处于 M2与 1之间的一个值, 包括 1。 在调整完后再通知需要初始化的用户终端设备进行初始化, 这时用于 上对于下上行不对称比率的调整是同时完成的。、具 初始化方法 1与本发明 实施例一中的方法相同。
可选的, 接入设备在所述第一用户终端设备初始化完成后向所述网络系 统中的每个用户终端设备发送消息, 该消息携带所述网络系统的下上行不对 称比率的 M3, 使得所述网络系统同时完成下上行不对称比率的调整, 经过调 整后的所述网络系统的下上行不对称比率为所述 M3, 所述 M3为所述网络系统 的 M2或所述网络系统所支持的其他值。 具体初始化方法, 与本发明实施例一 中的方法相同。
可选的, 接入设备根据除了所述第一用户终端设备外的各用户终端设备 当前的下行数据流速和上行数据流速的比值确定所述 Ml。 当前的数据流速是 指瞬时的数据流速。 根据比值调整的方法为, 例如, 系统 M2为 2, 各用户终 端设备及各收发器之间消息交互的时分双工帧的下上行比率与此相同, 否则 会造成 NEXT串扰,但当前各用户终端设备及收发器的实际上行与下行的数据 的流速比值并不一定与此相同, 比如第二用户终端设备与第二收发器之间的 当前实际下行数据流速与上行数据流速的比值可能为 3 ,第三用户终端设备与 第三收发器之间的当前实际下行数据流速与上行数据流速的比值可能为 4,第 四用户终端设备与第四收发器之间的当前实际下行数据流速与上行数据流速 的比值可能为 1/2等等, 这时接入设备综合考量各线对之间的当前实际下上行 数据流速比值, 在系统支持的范围内确定 Ml。 例如, Ml可选 1 , 也可以选择 这些比值中中间值或者与该中间值最近的一个值, 也可以选取这些比值的加 权平均值或者与该加权平均值最近的一个值。 当所有的比值都大于 1时, 可以 选择这些比值中的最小值, 当所有比值最大时, 可以选择这些比值中的最大 值。 当然, 这些选取的值需为 1与 M2之间的一个值, 包括 1。
可选的, 接入设备可以根据接入设备当前的下行数据流速和上行数据流 速的比值确定所述 Ml。 当前的下行数据流速和上行数据流速的比值可以是该 接入设备与其相连的上游设备之间的当前下行数据流速和上行数据流速的比 值, 也可以是该接入设备与除第一用户终端设备外的各用户终端设备之间的 当前下行数据流速的总和和上行数据流速的总和的比值。 可以在系统所支持 的下上行不对称比率范围中选取一个离这个比值最近的值, 当然这个值应当 在 1与系统 M2之间。
所述网络系统中的用户终端设备用于根据接入设备的指令进行下上行不 对称比率的调整,用于与其连接的所述接入设备中的收发单元进行消息交互。 当该用户终端设备是新加入的用户终端设备时, 还可用于发起与接入设备中 与其相连的收发单元的握手, 通过握手告知该用户终端设备需要初始化, 并 本发明实施例所揭示的网络系统, 通过在系统中的用户终端设备初始化 之前先调整网络 统的各同步时分双工顿的 上 ^不对称比率; -使所述网 以调整后的下上行不对称比率进行初始化的用户终端设备能更快地完成初始 化, 并且能提高初始化的成功率, 提高了用户体验。 实施方式四: 本发明实施例还提供一种网络设备, 可应用于同步时分双 工 (STDD)系统, 如图 6所示, 包括处理器, 存储器, 收发器, 其中处理器与 后两者耦合。 该网络设备可以用于执行如实施例一的方法。 具体的, 收发器 用于接收来自该网络设备外部的消息并向外部发送消息, 具体的, 具有如实 施例二中收发单元的功能; 处理器对接收到的消息进行处理, 具体的, 具有 如实施例二中动态资源分配单元的功能; 存储器, 用于存储来自处理器的信 息。
该处理器可以为通用处理器, 如集成电路 IC, 那么其执行的程序存储在 存储器中; 该处理器也可以为专用集成电路, 如 ASIC ( Application Specific Integrated Circuit )或 FPGA ( Field-Programmable gate array ) , 或者其他类 4以 功能器件。 、 | 、 : ― 、 ' 、 过在用户终端设备初始化之前先调整 STDD系统的下上行不对称比率,使系, 整后的下上行不对称比率进行初始化的用户终端设备能更快地完成初始化, 并且能提高初始化的成功率, 提高了用户体验。
通过以上的实施方式的描述, 所属领域的技术人员可以清楚地了解到本 发明可以用硬件实现, 或固件实现, 或它们的组合方式来实现。 当使用软件 实现时, 可以将上述功能存储在计算机可读介质中或作为计算机可读介质上 的一个或多个指令或代码进行传输。 计算机可读介质包括计算机存储介质和 通信介质, 其中通信介质包括便于从一个地方向另一个地方传送计算机程序 的任何介质。 存储介质可以是计算机能够存取的任何可用介质。 以此为例但 不限于: 计算机可读介质可以包括 RAM、 ROM, EEPROM、 CD-ROM或其 他光盘存储、 磁盘存储介质或者其他磁存储设备、 或者能够用于携带或存储 具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他 介质。 此外。 任何连接可以适当的成为计算机可读介质。 例如, 如果软件是 使用同轴电缆、 光纤光缆、 双绞线、 数字用户线 (DSL )或者诸如红外线、 无线电和微波之类的无线技术从网站、 服务器或者其他远程源传输的, 那么 同轴电缆、 光纤光缆、 双绞线、 DSL或者诸如红外线、 无线和微波之类的无 线技术包括在所属介质的定影中。 如本发明所使用的, 盘( Disk )和碟( disc ) 包括压缩光碟(CD ) 、 激光碟、 光碟、 数字通用光碟(DVD ) 、 软盘和蓝光 光碟, 其中盘通常磁性的复制数据, 而碟则用激光来光学的复制数据。 上面 的组合也应当包括在计算机可读介质的保护范围之内。
总之, 以上所述仅为本发明技术方案的较佳实施例而已, 并非用于限定 本发明的保护范围。 凡在本发明的精神和原则之内, 所作的任何修改、 等同 替换、 改进等, 均应包含在本发明的保护范围之内。

Claims

权 利 要 求 书
1、 一种初始化的方法, 应用于网络系统中, 所述网络系统包括接入设备 和至少两个用户终端设备, 所述接入设备中包括至少两个收发器, 其中每个 所述收发器只与一个所述用户终端设备相连, 每个所述用户终端设备只与一 个所述收发器相连, 相互连接的收发器和用户终端设备之间使用时分双工帧 进行消息交互,各个收发器和与其相连的用户终端设备之间交互的时分双工 帧的各个时隙均同步, 其特征在于, 所述方法包括:
所述接入设备确定所述网络系统中的第一用户终端设备以及与其相连的 所述接入设备中的第一收发器需要初始化后, 向所述网络系统中的除所述第 一用户终端设备以外的所有处于工作状态的用户终端设备发送携带有第一比 率 Ml的第一控制消息,使得除所述第一用户终端设备以外的所有处于工作状 态的用户终端设备以及与其连接的收发器将下上行不对称比率都调整至第一 比率 Ml , 所述下上行不对称比率为所述处于工作状态的各用户终端设备与各 自所连接的收发器之间用于消息交互的时分双工帧中下行时隙长度与上行时 隙长度的比值, 所述第一比率 Ml为所述网络系统所支持的下上行不对称比率 范围中的值, 其中, 1 M1 < M2或者 M2 < M1 1 , 第二比率 M2为所述处于 工作状态的各用户终端设备与各自连接的收发器之间用于消息交互的时分双 工帧的下上行不对称比率被调整至所述 Ml之前的值;
所述接入设备在确定除所述第一用户终端设备以外的所有处于工作状态 的用户终端设备以及与其相连的各收发器将下上行不对称比率都调整至 Ml 后, 发送携带所述 Ml的第二控制消息给所述第一用户终端设备, 使得所述第 一用户终端设备以及与其相连的所述第一收发器以下上行不对称比率为所述 Ml的时分双工帧进行初始 ^匕。
2、 根据权利要求 1所述方法, 其特征在于:
所述向所述网络系统中的除所述第一用户终端设备以外的所有处于工作 状态的用户终端设备发送携带有第一比率 Ml的第一控制消息具体为:
所述接入设备向所述网络系统中的除所述第一用户终端设备以外的所有 处于工作状态的用户终端设备同时发送携带有第一比率 Ml的第一控制消息, 从而使得除所述第一用户终端设备以外的所有处于工作状态的用户终端设备 以及与其相连的各收发器同时将下上行不对称比率都调整至所述 Ml。
3、 根据权利要求 1所述方法, 其特征在于:
所述第一控制消息中携带指定时间, 使得除所述第一用户终端设备以外 的所有处于工作状态的用户终端设备以及与其相连的各收发器在所述指定时 间将下上行不对称比率都调整至所述 Ml。
4、根据权利要求 1至 3所述任意一种方法,其特征在于,所述方法还包括: 所述接入设备在所述第一用户终端设备以及与其相连的所述第一收发器 初始化完成后, 向所述网络系统中的所有处于工作状态的用户终端设备发送 携带有第三比率 M3的第三控制消息,使得所有处于工作状态的用户终端设备 和与其相连的各收发器同时将用于消息交互的时分双工帧的下上行不对称比 率都调整至所述 M3 , 所述 M3等于所述 M2或等于所述网络系统所支持的其他 下上行不对称比率的值。
5、根据权利要求 1至 4所述任意一种方法,其特征在于,所述方法还包括: 所述接入设备根据除所述第一收发器外的所有处于工作状态的各收发器 当前的下行数据流速和上行数据流速的比值确定所述 Ml; 或者
所述接入设备根据所述接入设备当前的下行数据流速和上行数据流速的 比值确定所述 Ml。
6、 一种接入设备, 其特征在于, 所述接入设备包括:
动态资源分配单元和与其相连的至少两个收发单元;
所述动态资源分配单元, 用于根据第一收发单元的初始化请求生成第一 控制消息, 并向除所述第一收发单元外的处于工作状态的收发单元发送携带 有第一比率 Ml的第一控制消息, 所述第一收发单元为所述至少两个收发单元 中的一个, 所述 Ml为预存在所述接入设备中的下上行不对称比率范围中的 值, 所述下上行不对称比率为所述处于工作状态的收发单元与各自所连接的 长度的比值, 其中, 1 M1 < M2或者 M2 < M1 1 , 所述 M2为所 下上行不 对称比率被调整至所述 Ml之前的值; 在确定所述处于工作状态的收发单元以 及各自所连接的用户终端设备完成下上行不对称比率的调整后 , 发送携带所 述 Ml的第二控制消息给所述第一收发单元;
所述第一收发单元, 用于接收所述第二控制消息, 根据所述第二控制消 息中携带的所述 Ml进行初始化; 所述接入设备中除第一收发单元外的收发单 元, 用于接收所述第一控制消息, 根据所述第一控制消息中携带的所述 Ml , 将各自的下上行不对称比率调整为所述 Ml ; 其中, 各个所述收发单元与各自 所连接的用户终端设备之间用于消息交互的各时分双工帧的各个时隙均同 步。
7、 根据权利要求 6所述接入设备, 其特征在于:
所述动态资源分配单元, 具体用于向除第一收发单元外的所有处于工作 状态的收发单元同时发送所述第一控制消息;
各个所述除第一收发单元外的收发单元, 具体用于接收所述第一控制消 息, 根据所述第一控制消息中携带的所述 Ml , 同时将各自的下上行不对称比 率调整至所述 Ml。
8、 根据权利要求 6所述接入设备, 其特征在于:
所述第一控制消息中还携带有指定时间;
所述除第一收发单元外的收发单元 , 具体用于接收所述第一控制消息 , 根据所述第一控制消息中携带的指定时间和所述 Ml ,在所述指定时间将各自 的下上行不对称比率调整至所述 Ml。
9、 根据权利要求 6至 8所述任意一种接入设备, 其特征在于:
所述动态资源分配单元还用于在所述第一收发单元以及与所述第一收发 单元相连的用户终端设备初始化完成后, 向所述接入设备中的所有处于工作 状态的收发单元发送携带有 M3的第三控制消息, 所述 M3等于所述 M2或等于 所述下上行不对称比率范围中的其他下上行不对称比率的值;
所述接入设备中的收发单元还用于根据该第三控制消息, 同时将各自的 下上行不对称比率都调整至所述 M3。
10、 根据权利要求 6至 9任意一种所述接入设备, 其特征在于:
所述动态资源分配单元还用于在生成所述第一控制消息前, 向处于工作 状态的收发单元发送调整下上行不对称比率的通告消息, 并根据除处于工作 状态的收发单元返回的当前的下行数据流速和上行数据流速的比值确定所述 Ml ; 或者
所述动态资源分配单元还用于在生成所述第一控制消息前, 向处于工作 状态的收发单元发送调整下上行不对称比率的通告消息, 并根据处于工作状 态的收发单元返回的下行数据流速和上行数据流速确定所述 Ml。
11、 一种接入网络系统, 其特征在于:
所述接入网络系统包括接入设备和至少两个用户终端设备;
所述接入设备为如权利要求 6至 10中所述的任意一个接入设备; 所述用户终端设备与所述接入设备中的收发单元通过双绞线连接, 所述 接入设备中的每个收发单元只与一个所述用户终端设备连接, 每个所述用户 终端设备只与所述接入设备中的一个收发单元连接。
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Publication number Priority date Publication date Assignee Title
WO2015039309A1 (zh) * 2013-09-18 2015-03-26 华为技术有限公司 一种线路初始化方法、装置和系统
WO2016086334A1 (zh) * 2014-12-01 2016-06-09 华为技术有限公司 混合网络中的报文分发方法、装置和系统
EP3367581B1 (en) * 2015-11-12 2020-01-08 Huawei Technologies Co., Ltd. Method and device for digital subscriber line initialization

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1787678A (zh) * 2004-12-06 2006-06-14 大唐移动通信设备有限公司 多载波时分双工通信系统的动态信道分配方法
CN101222272A (zh) * 2008-01-28 2008-07-16 中兴通讯股份有限公司 下行导频时隙中物理下行控制信道的信号发送方法
CN101232655A (zh) * 2007-12-29 2008-07-30 深圳国人通信有限公司 Td-scdma直放站上下行工作的切换方法及直放站
CN102387543A (zh) * 2010-09-02 2012-03-21 中兴通讯股份有限公司 一种时分双工系统中动态子帧的配置方法及装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5602836A (en) * 1993-11-24 1997-02-11 Lucent Technologies Inc. Multiple access cellular communication with circular interleaving and reduced dropped-packet runlengths
US20050259629A1 (en) * 2004-05-24 2005-11-24 Neal Oliver Adapting uplink/downlink subframe ratio in time division duplex physical frames
CN1996788B (zh) * 2006-12-01 2012-07-04 陕西佳圣通讯科技有限公司 基于卫星同步的td-scdma无线网络直放站时隙配置装置及配置方法
CN101282168B (zh) * 2007-04-03 2013-01-16 中兴通讯股份有限公司 时分双工移动通信系统共存时无线帧的发射方法、系统
CN101998483B (zh) * 2009-08-26 2014-09-17 中国移动通信集团公司 为家庭基站配置测量时间的方法及其装置
CN102064902B (zh) * 2011-01-10 2013-06-12 江阴和普微电子有限公司 一种数字无线传输的非对称分时复用方法及其实现系统

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1787678A (zh) * 2004-12-06 2006-06-14 大唐移动通信设备有限公司 多载波时分双工通信系统的动态信道分配方法
CN101232655A (zh) * 2007-12-29 2008-07-30 深圳国人通信有限公司 Td-scdma直放站上下行工作的切换方法及直放站
CN101222272A (zh) * 2008-01-28 2008-07-16 中兴通讯股份有限公司 下行导频时隙中物理下行控制信道的信号发送方法
CN102387543A (zh) * 2010-09-02 2012-03-21 中兴通讯股份有限公司 一种时分双工系统中动态子帧的配置方法及装置

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