WO2012146150A1 - 数据传输中速率的调整方法和设备 - Google Patents

数据传输中速率的调整方法和设备 Download PDF

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Publication number
WO2012146150A1
WO2012146150A1 PCT/CN2012/074437 CN2012074437W WO2012146150A1 WO 2012146150 A1 WO2012146150 A1 WO 2012146150A1 CN 2012074437 W CN2012074437 W CN 2012074437W WO 2012146150 A1 WO2012146150 A1 WO 2012146150A1
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WIPO (PCT)
Prior art keywords
threshold
rate
congestion
data
rate adjustment
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PCT/CN2012/074437
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English (en)
French (fr)
Inventor
陈东
杨映红
郭宣羽
李明
唐欣
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华为技术有限公司
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Publication of WO2012146150A1 publication Critical patent/WO2012146150A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/16Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18Negotiating wireless communication parameters
    • H04W28/22Negotiating communication rate
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0014Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the source coding

Definitions

  • the embodiments of the present invention relate to the field of video technologies, and in particular, to a method and a device for adjusting a rate in data transmission. Background technique
  • adaptive multi-rate and Adaptive Multi-Rate Wideband (AMR) speech frames are classified into sub-streams of three levels A, B, and C according to the importance of voice bits.
  • the rate adjustment scheme of the AMR voice service is reduced, and the rate of the AMR voice service is dynamically adjusted by measuring resources such as network load and voice service link quality. For example, when the resources can be guaranteed, the rate of the AMR voice service can be increased, thereby providing a high quality user experience; when the resources are insufficient, the rate of the AMR voice service can be reduced, thereby reducing the user experience, but maintaining the pass function.
  • the AMR voice service is accessed at a guaranteed rate, and after the congestion is released, for the uplink rate adjustment, the end-to-end voice rate adjustment process, the receiving end
  • the rate adjustment of the downlink congestion triggering of the UE is finally notified by the rate adjustment command to notify the uplink UE of the uplink rate reduction.
  • SRNC Radio Network Controller
  • RNC Radio Network Controller
  • the inventors have found that at least the following problems exist in the prior art: in the process of adjusting the uplink or downlink rate, the transmission of the message is transmitted end to end, which takes several hundred milliseconds (ms), thereby The response of the UE or the CN is slow, so that the quality of the AMR voice service is not controlled within a few hundred milliseconds. In addition, the A-level sub-stream may be discarded due to the rate adjustment, thereby seriously impairing the AMR voice quality, thereby affecting the user. The degree of experience. Summary of the invention
  • the embodiment of the invention provides a method and a device for adjusting the rate in data transmission, which effectively improves the response speed and voice quality of the UE or the CN during rate adjustment, thereby effectively improving the user experience.
  • An aspect of the present invention provides a method for adjusting a rate in data transmission, including: a device acquiring a rate adjustment parameter; the device adjusting a parameter according to the rate, and substreams of at least two levels pre-divided by the data, The discarding process is performed from the lowest level substream in the data.
  • Another aspect of the present invention provides an apparatus for adjusting a rate in data transmission, including: a rate adjustment parameter acquisition module, configured in a packet data convergence protocol layer of the device, for acquiring a rate adjustment parameter; and a rate adjustment module, configured in the The packet data convergence protocol layer of the device is configured to perform a discarding process from the lowest level substream in the data according to the rate adjustment parameter and the at least two levels of substreams pre-divided by the data.
  • the method and device for adjusting the rate of data transmission in the embodiment of the present invention shorten the delay, improve the response speed and the voice quality, and effectively improve the user experience.
  • FIG. 1 is a flowchart of another embodiment of a method for adjusting a rate in data transmission according to the present invention
  • FIG. 2 is a flowchart of another embodiment of a method for adjusting a rate in data transmission according to the present invention
  • FIG. 4 is a schematic structural diagram of an embodiment of a device for adjusting a rate in data transmission according to the present invention
  • FIG. 5 is another embodiment of a device for adjusting a rate in data transmission according to the present invention
  • GSM Global System for Mobile communications
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access Wireless
  • FDMA Frequency Division Multiple Access
  • OFDMDMA Orthogonal Frequency-Division Multiple Access
  • SC-FDMA single carrier FDMA
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • the terminal which may be a wireless terminal or a wired terminal, may be a device that provides voice and/or data connectivity to the user, a handheld device with wireless connectivity, or other processing device connected to the wireless modem.
  • the wireless terminal can communicate with one or more core networks via a radio access network (eg, Radio Access Network; RAN for short), and the wireless terminal can be a mobile terminal, such as a mobile phone (or "cellular" phone) and has
  • the computer of the mobile terminal for example, may be a portable, pocket, handheld, computer built-in or in-vehicle mobile device that exchanges language and/or data with the wireless access network.
  • a wireless terminal may also be called a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, and an access point.
  • Remote Terminal Access Terminal, User Terminal, User Agent, User Device, or User Equipment.
  • a base station can refer to a device in an access network that communicates with a wireless terminal over one or more sectors over an air interface.
  • the base station can be used to convert the received air frame to the IP packet as a router between the wireless terminal and the rest of the access network, wherein the remainder of the access network can include an Internet Protocol (IP) network.
  • IP Internet Protocol
  • the base station can also coordinate attribute management of the air interface.
  • the base station may be a base station in GSM or CDMA (Base Transceiver Station; Abbreviation: BTS), which may be a base station (NodeB) in WCDMA, or an evolved Node B (abbreviation: eNB or e-NodeB) in LTE, which is not limited in the present invention.
  • the base station controller may be a base station controller (BSC) in GSM or CDMA, or may be a radio network controller (RANC) in WCDMA, which is not limited by the present invention.
  • BSC base station controller
  • RNC radio network controller
  • FIG. 1 is a flow chart of an embodiment of a method for adjusting a rate in data transmission according to the present invention, as shown in FIG. 1.
  • the device acquires a rate adjustment parameter.
  • the device may be a UE; or the device may also be a network side device, such as an RNC in the RAN.
  • the device may dynamically adjust the service source data sending rate to adapt to the resource state according to the resource status feedback in the device. For example, the device may pre-configure the rate adjustment parameter; or, by receiving the measurement report, and according to the measurement The measured value in the report is compared with a pre-configured resource decision threshold to obtain a rate adjustment parameter corresponding to the rate adjustment command.
  • the device adjusts parameters according to the rate, and at least two sub-streams pre-divided into data, and performs discard processing from the lowest-level sub-stream in the data.
  • the device may adjust the parameters according to the rate, and the substreams of at least two levels pre-divided into the data, discard the processing from the lowest level substream in the data, and may reserve the highest level substream.
  • the device may also perform discarding processing according to the rate adjustment parameter and the substreams of at least three levels pre-divided by the data from the lowest level substream in the data.
  • data can be divided into two levels based on the importance of the voice bits, for example, respectively Sub-flows of A, C, or three levels, for example, three sub-flows of A, B, and C, etc., are successively reduced in importance.
  • the device may adjust the parameter according to the rate, and start discarding processing from the lowest level substream (ie, the C-level substream) in the data.
  • the rate adjustment parameter is obtained, and the parameter is adjusted according to the rate, and the substreams of at least two levels pre-divided by the data are discarded from the lowest level substream in the data, thereby performing rate adjustment.
  • the delay of the rate adjustment parameter is only the internal communication delay of the device, that is, it belongs to inter-board communication or intra-board communication, and does not involve other multiple network element interactions, thereby shortening the delay and improving the response speed of the rate adjustment. Since the sub-streams with low importance in the data are preferentially discarded, the present invention effectively improves the voice quality in terms of discriminating importance from the prior art, that is, discarding sub-streams of any importance level in the data. , which effectively improves the user experience.
  • FIG. 2 is a flowchart of another embodiment of a method for adjusting a rate in data transmission according to the present invention.
  • the device is an RNC, and the following line direction is taken as an example to describe the technical solution of the embodiment in detail.
  • the RNC receives a measurement report, where the measurement report includes a measurement value.
  • the RNC compares the measured value with a pre-configured resource decision threshold. If the downlink resource is limited or the single link quality is deteriorated, performing 203; if the downlink resource is restricted or the single link quality is changed. Ok, execute 206.
  • the measurement value includes: Channel Quality Indication (CQI), link loss, and an interface between the radio network controller and the base station (Iub Interface between an RNC and a Node B; : IUB ) Transmission resource utilization and / or downlink transmit power.
  • the resource decision threshold may be preset in the network side device, and includes: a CQI congestion threshold, a CQI congestion release threshold, a link loss congestion threshold, a link loss congestion cancellation threshold, a downlink power congestion threshold, and a downlink power congestion cancellation threshold.
  • the CQI can be in physical layer (Physical Layer; referred to as: PHY) Layer or MAC layer
  • link loss can refer to Media Access Control (MAC) layer packet loss.
  • MAC Media Access Control
  • the RNC obtains a resource-restricted state, and obtains a rate downward adjustment command according to the resource-restricted state.
  • the RNC adjusts the command according to the rate downward, obtains a packet loss ratio falling step corresponding to the rate downward adjustment command, and calculates a data packet loss ratio according to the packet loss ratio decreasing step size.
  • Step 205 The RNC discards the lowest level substream from the data according to the data packet loss ratio and the substreams of at least two levels pre-divided into the data.
  • the CQI is less than or equal to the CQI congestion threshold
  • the link loss is greater than or equal to the link loss congestion threshold
  • the downlink transmit power is greater than or equal to the downlink power congestion threshold
  • the downlink IUB transmission resource utilization is used. If the rate is greater than or equal to the congestion threshold of the IUB transmission resource, it indicates that the downlink resource is limited or the quality of the single link is deteriorated.
  • the rate-down command corresponding to the resource-restricted state is obtained, And obtaining, from the pre-storage rate adjustment parameter, a packet loss ratio falling step corresponding to the rate down adjustment command, and calculating a data packet loss ratio according to the packet loss ratio, and then according to the data packet loss ratio, And substreams of at least two levels pre-divided into data, and discarding the lowest level substreams in the data, for example: taking voice importance as an example, according to the data packet loss ratio, and three pre-divided data
  • the sub-flow of the level discards the sub-flow of the C-level and the sub-flow of the B-level in the data.
  • only the A-level sub-flow can be included in the PDCP PDU packet in the Packet Data Convergence Protocol (PDCP) layer
  • the RNC obtains a resource limited release state, and obtains a rate upward adjustment command according to the resource limited release state.
  • the RNC adjusts the command according to the rate upward, obtains a packet loss step-up step corresponding to the rate upward adjustment command, and calculates a data packet loss ratio according to the packet loss ratio rising step size. 208.
  • the RNC performs discarding processing from the lowest level substream in the data according to the data packet loss ratio and the substreams of at least two levels pre-divided into the data.
  • the CQI is greater than the CQI congestion cancellation threshold
  • the link loss is less than the link loss congestion cancellation threshold
  • the downlink transmission power is less than the downlink power congestion cancellation threshold
  • the downlink IUB transmission resource utilization rate is used. If the threshold of the IUB transmission resource congestion is exceeded, it indicates that the downlink resource is restricted to be released or the quality of the single link is improved.
  • the resource limited release state is acquired, and a rate upward adjustment command corresponding to the resource limited release state is acquired, and then stored in the RNC in advance.
  • the rate adjustment parameter in the PDCP layer the packet loss ratio rising step corresponding to the rate up adjustment command is obtained, and the packet loss ratio is calculated according to the packet loss ratio, and the data packet loss ratio is calculated according to the data packet loss ratio. And substreams of at least two levels pre-divided into data, and discarding processing from the lowest level substream in the data, thereby achieving upward adjustment of the data rate.
  • the measurement report is received by the RNC, and the measurement report includes the measured value, and the measured value is compared with a pre-configured resource decision threshold, and the rate adjustment command is obtained, and the rate adjustment command is obtained according to the rate adjustment command.
  • the rate adjustment parameter corresponding to the command, and the parameter is adjusted according to the rate, and the substreams of at least two levels pre-divided by the data are discarded from the lowest level substream in the data, so that the rate adjustment command is used during rate adjustment.
  • the delay of the parameter and the parameter is only the internal communication delay of the RNC, that is, it belongs to inter-board communication or intra-board communication, and does not involve other multiple network element interactions, thereby shortening the delay and improving the response speed of the rate adjustment.
  • the present invention effectively improves the voice quality in terms of discriminating importance from the prior art, that is, discarding sub-streams of any importance level in the data. In turn, the user's experience is effectively improved.
  • FIG. 3 is a flowchart of still another embodiment of a method for adjusting a rate in a data transmission according to the present invention.
  • the device is a UE, and the foregoing line direction is taken as an example, and the technical solution of the embodiment is introduced in detail. 3 is shown. 301.
  • the UE receives a measurement report, where the measurement includes a measurement value.
  • the UE compares the measured value with a pre-configured resource decision threshold. If the uplink resource is limited or the quality of the single link is degraded, perform 303. If the uplink resource is restricted or the quality of the single link is changed. Ok, execute 306.
  • the measured values include: Uplink Power Headroom (abbreviation: UPH), link loss and/or uplink transmit power.
  • UPH Uplink Power Headroom
  • the resource decision threshold may be a parameter that is sent by the network side, or may be configured on the UE side, and the resource decision threshold includes: a UPH congestion threshold, a UPH congestion cancellation threshold, a link loss congestion threshold, and a link loss congestion congestion. Threshold, uplink power congestion threshold and/or uplink power congestion cancellation threshold.
  • the UPH may be at the PHY layer or the MAC layer; the link packet loss may be packet loss for the MAC layer.
  • the UE acquires a resource limited state, and obtains a rate downward adjustment command according to the resource limited state.
  • the UE adjusts the packet down rate according to the rate, and obtains a packet loss ratio step corresponding to the rate down adjustment command, and calculates a data packet loss ratio according to the packet loss ratio.
  • the UE performs discarding processing from the lowest level substream in the data according to the data packet loss ratio and the substreams of at least two levels pre-divided into the data.
  • the UPH is less than or equal to the UPH congestion threshold
  • the link loss is greater than or equal to the link loss congestion threshold
  • the uplink transmit power is greater than or equal to the uplink power congestion threshold
  • a 6A event occurs. It indicates that the uplink resource is limited or the quality of the single link is degraded to obtain the resource limited state.
  • the resource-restricted state is acquired, and the rate-down adjustment command corresponding to the resource-restricted state is obtained, and then received from the PDCP layer of the RNC in advance.
  • the rate adjustment parameter the packet loss ratio falling step corresponding to the rate down adjustment command is obtained, and the data packet loss ratio is calculated, and according to the data packet loss ratio, and at least two levels of pre-divided data.
  • the flow is discarded from the lowest-level substream in the data, for example: taking the importance of voice as an example, according to the data packet loss ratio, and the data advance
  • the sub-flows of the three levels are divided, and the sub-flows of the C-level and the sub-flows of the B-level are discarded, and only the sub-streams of the A-level are included in the PDCP PDU packet in the PDCP layer, thereby realizing The data rate is adjusted downwards.
  • the rate adjustment parameter in the PDCP layer of the UE is pre-configured in the PDCP layer of the RNC.
  • the operation maintenance (Om. Maintenance: OM) module can be configured to configure the rate adjustment parameter in the PDCP layer of the RNC, and then send the rate adjustment parameter.
  • the PDCP layer for the UE is then received and saved by the PDCP layer of the UE.
  • the RRC layer of the UE acquires a resource limited release state, and obtains a rate upward adjustment command according to the resource limited release state.
  • the UE adjusts the rate according to the rate upward adjustment command, and obtains a packet loss ratio rising step corresponding to the rate upward adjustment command, and calculates a data packet loss ratio according to the packet loss ratio rising step size.
  • the UE performs discarding processing from the lowest level substream in the data according to the proportion of lost packets and the substreams of at least two levels pre-divided into the data.
  • the UPH is greater than the UPH congestion cancellation threshold
  • the link loss is less than the link loss congestion cancellation threshold
  • the uplink transmission power is less than the uplink power congestion cancellation threshold
  • the 6B event occurs. , indicating that the uplink resource is restricted to be released or the quality of the single link is deteriorated.
  • the RRC layer detects that the uplink resource is restricted or the quality of the single link is good, the resource limited release state is acquired, and the rate upward adjustment command corresponding to the resource release restricted state is acquired, and then the pre-received from the RNC.
  • the rate adjustment parameter received by the PDCP layer the packet loss ratio rising step corresponding to the rate up adjustment command is obtained, and the data packet loss ratio is calculated according to the packet loss ratio rising step length, taking voice importance as an example, according to the The data packet loss ratio, and the three levels of sub-streams pre-divided by the data, discard the C-level sub-flow and the B-level sub-flow in the data, thereby achieving an upward adjustment of the data rate.
  • the UE receives the measurement report, compares the measurement report with the pre-configured resource decision threshold, and obtains a rate adjustment command. Finally, the UE obtains the rate adjustment command according to the rate adjustment command. And adopting a rate adjustment parameter corresponding to the rate adjustment command, and adjusting the parameter according to the rate, and substreams of at least two levels pre-divided by the data, performing discard processing from the lowest level substream in the data, thereby performing rate adjustment
  • the delay of the rate adjustment command and the parameter is only the internal communication delay of the UE, that is, it belongs to inter-board communication or intra-board communication, and does not involve other multiple network element interactions, thereby shortening the delay and improving the response speed of the rate adjustment.
  • the present invention effectively improves the importance of distinguishing the importance of the sub-flows of any importance level in the data from the prior art. Voice quality, which in turn effectively improves the user experience.
  • FIG. 4 is a schematic structural diagram of an apparatus for adjusting a rate in a data transmission according to the present invention.
  • the device in this embodiment may be a UE or an RNC or a BSC, and the device includes: a rate adjustment parameter obtaining module 11 And a rate adjustment module 12, wherein the rate adjustment parameter acquisition module 11 is disposed at a PDCP layer of the device for acquiring a rate adjustment parameter; the rate adjustment module 12 is configured at a PDCP layer of the device, configured to adjust parameters according to the rate, and pre-data The divided sub-streams of at least two levels are discarded from the lowest-level substream in the data.
  • the device may be a UE; or the device may also be a network side device, such as an RNC in the CN.
  • the rate adjustment parameter is obtained, and the parameter is adjusted according to the rate, and the substreams of at least two levels pre-divided by the data are discarded from the lowest level substream in the data, thereby performing rate adjustment.
  • the delay of the rate adjustment parameter is only the internal communication delay of the device, that is, it belongs to inter-board communication or intra-board communication, and does not involve other multiple network element interactions, thereby shortening the delay and improving the response speed of the rate adjustment. Since the sub-streams with low importance in the data are preferentially discarded, the present invention effectively improves the voice quality in terms of discriminating importance from the prior art, that is, discarding sub-streams of any importance level in the data. , which effectively improves the user experience.
  • FIG. 5 is a schematic structural diagram of another embodiment of a device for adjusting a rate in data transmission according to the present invention.
  • the device may further include: The receiving module 13 and the rate adjustment command are obtained, wherein the receiving module 13 is disposed at the RRC layer of the device, and is configured to receive a measurement report, where the measurement report includes a measurement value; and the rate adjustment command acquiring module 14 is configured at the RRC layer of the device. And comparing the measured value with the pre-configured resource decision threshold, obtaining a rate adjustment command, and sending the rate adjustment command to the rate adjustment parameter obtaining module 11.
  • the rate adjustment parameter obtaining module 11 may be specifically configured to acquire a rate adjustment parameter corresponding to the rate adjustment command.
  • the measurement report is received by the receiving module 13 set in the Radio Resource Control (RRC), the measurement report includes the measured value, and the module is acquired by the rate adjustment command set in the RRC layer.
  • the comparison between the measured value and the pre-configured resource decision threshold is performed, and the rate adjustment command is obtained, and sent to the rate adjustment parameter obtaining module 11 of the PDCP layer, so that the rate adjustment module 12 obtains the rate according to the rate adjustment command.
  • the trigger rate adjustment module 12 adjusts the parameter according to the rate, and the substreams of at least two levels pre-divided into the data, and discards the lowest level substream from the data, thereby
  • the delay of the rate adjustment command and the parameter is only the communication delay between the RRC layer and the PDCP layer of the device, that is, it belongs to the inter-board communication or the intra-board communication, and does not involve other multiple network element interactions, thereby causing the delay. Shorten, improve the response speed of the rate adjustment, in addition, because of the excellent The sub-streams with low importance in the data are discarded. Therefore, the present invention effectively improves the voice quality and is effective in distinguishing the importance of the sub-flows of any importance level in the data.
  • the ground has improved the user experience.
  • the rate adjustment parameter acquisition module 11 may further be configured to pre-configure the rate adjustment history on the basis of the foregoing embodiment shown in FIG.
  • the measurement value received by the receiving module 13 may include a CQI, Link packet loss, downlink IUB transmission resource utilization and/or downlink transmission power, and resource decision thresholds pre-stored in the PDCP layer include CQI congestion threshold and CQI congestion cancellation.
  • the IUB transmission resource congestion threshold is greater than or equal to, the resource-restricted state is obtained, and the rate-down adjustment command is obtained according to the resource-restricted state.
  • the rate adjustment command acquiring module 14 is specifically configured to determine that at least one of the following is satisfied: the CQI is greater than the CQI congestion cancellation threshold, and the link loss is smaller than the link loss congestion cancellation threshold, and the downlink is When the transmit power is less than the downlink power congestion cancellation threshold and/or the downlink IUB transmission resource utilization is less than the IUB transmission resource congestion cancellation threshold, the resource limited release state is obtained, and the rate upward adjustment command is obtained according to the resource limited release state.
  • the rate adjustment parameter obtaining module 11 is specifically configured to: when receiving the rate down adjustment command, adjust the command according to the rate, and obtain the rate adjustment direction from the rate adjustment parameter pre-stored in the PDCP layer of the network side device.
  • the packet loss ratio corresponding to the lower adjustment command decreases the step size
  • the trigger rate adjustment module 12 calculates the data packet loss ratio according to the packet loss ratio, and according to the data packet loss ratio, and at least two levels pre-divided into the data.
  • the substream is discarded from the lowest level substream in the data.
  • the rate adjustment parameter obtaining module 11 is specifically configured to: if the rate up adjustment command is received, adjust the command according to the rate, and select the rate adjustment parameter from the PDCP layer that is pre-stored in the network side device.
  • the step of increasing the packet loss ratio corresponding to the rate up adjustment command is obtained, and the trigger rate adjustment module 12 calculates the data packet loss ratio according to the packet loss ratio, and according to the data packet loss ratio and the data pre-proportion
  • the divided sub-streams of at least two levels are discarded from the lowest-level sub-stream in the data, for example: preferentially discarding some of the lowest-level sub-streams in the data or not dropping them.
  • the rate adjustment parameter includes a packet loss step and a step size.
  • the device in this embodiment can perform the technical solution of the method embodiment shown in FIG. 2, and the implementation principles thereof are similar, and details are not described herein again.
  • the measurement report is received by the receiving module 13 in the RRC layer of the RNC, where the measurement report includes the measurement value, and the measurement parameter is obtained by the rate adjustment command acquiring module 14 in the RRC layer and the pre-configured resource decision threshold.
  • the rate adjustment command is obtained, and the rate adjustment command is sent to the rate adjustment parameter acquisition module 11 of the PDCP layer of the RNC.
  • the rate adjustment parameter acquisition module 11 of the PDCP layer of the RNC obtains the rate adjustment according to the rate adjustment command.
  • the delay of the rate adjustment command and the parameter is only the communication delay between the RRC layer and the PDCP layer of the RNC, that is, it belongs to inter-board communication or intra-board communication, and does not involve other network element interactions, thereby shortening the delay. , improving the response speed of the rate adjustment, in addition, due to the importance of prioritizing the data The low substream is discarded. Therefore, the present invention effectively improves the voice quality, and effectively improves the user's, as compared with the prior art that does not distinguish the importance, that is, discards the substream of any importance level in the data. Experience.
  • the measurement value received by the receiving module 13 specifically includes UPH, link loss, and/or uplink transmit power.
  • a resource decision threshold obtained by the PDCP layer of the UE from the PDCP layer of the network side device (for example, RNC), where the resource decision threshold includes a UPH congestion threshold, a UPH congestion cancellation threshold, a link loss congestion threshold, and a link packet congestion congestion.
  • the threshold adjustment command acquisition module 14 is specifically configured to determine that at least one of the following is satisfied: the UPH is less than or equal to the UPH congestion threshold, and the link packet loss is greater than or equal to the link.
  • the packet congestion threshold and/or the uplink transmit power is greater than or equal to the uplink power congestion threshold, the resource-restricted state is obtained, and the rate-down adjustment command is obtained according to the resource-restricted state; or
  • the rate adjustment command obtaining module 14 is specifically configured to determine that at least one item is satisfied: the UPH is greater than the UPH congestion cancellation threshold, and the link loss packet is smaller than the link loss packet.
  • the congestion release threshold and/or the uplink transmission power is less than the uplink power congestion cancellation threshold, the resource limited release state is acquired, and the rate upward adjustment command is acquired according to the resource limited release state.
  • the rate adjustment parameter obtaining module 11 is specifically configured to: if the rate down adjustment command is received, adjust the command according to the rate, and obtain the rate adjustment parameter from the rate adjustment parameter received in advance from the PDCP layer of the network side device. Decrease the packet loss ratio corresponding to the downward adjustment command, and trigger the rate adjustment module 12 to calculate the data packet loss ratio according to the packet loss ratio, and according to the data packet loss ratio, and at least two pre-divided data. Sub-flows of each level are discarded from the lowest-level substream in the data.
  • the rate adjustment parameter obtaining module 11 is specifically configured to: if the rate up adjustment command is received, adjust the rate according to the rate upward adjustment command, and receive the rate adjustment from the PDCP layer of the network side device in advance.
  • the packet loss ratio rising step corresponding to the rate up adjustment command is obtained, and the trigger rate adjustment module 12 calculates the data packet loss ratio according to the packet loss ratio, and according to the data packet loss ratio and the data.
  • the pre-divided sub-streams of at least two levels are discarded from the lowest-level sub-stream in the data, for example: preferentially discarding some of the lowest-level sub-streams in the data or not dropping them.
  • the rate adjustment parameter includes a packet loss step and a step size.
  • the device in this embodiment can perform the technical solution of the method embodiment shown in FIG. 3, and the implementation principle is similar, and details are not described herein again.
  • the measurement report is received by the receiving module 13 in the RRC layer of the UE, where the measurement report includes the measurement value, and the measurement parameter acquisition module 14 sets the measurement value and the pre-configured resource through the rate adjustment command set in the RRC layer.
  • the rate adjustment command is obtained, and the rate adjustment command is sent to the rate adjustment parameter obtaining module 11 in the PDCP layer of the UE, and the rate adjustment parameter obtaining module 11 obtains the rate adjustment command according to the rate adjustment command.
  • Corresponding rate adjustment parameters, and the trigger rate adjustment module 12 performs discard processing on the lowest level substream from the data according to the rate adjustment parameter and the at least two levels of substreams pre-divided into the data, so that during rate adjustment,
  • the delay of the rate adjustment command is only at the RRC layer of the UE.
  • the communication delay between the PDCP layers belongs to inter-board communication or intra-board communication, and does not involve other multiple network element interactions, thereby shortening the delay and improving the response speed of the rate adjustment.
  • the data is important.
  • the low-rate sub-flow is discarded. Therefore, the present invention effectively improves the voice quality, and thus effectively improves the user, regardless of the prior art that does not distinguish the importance, that is, discards the sub-flow of any importance level in the data.
  • the degree of experience is a degree of experience.
  • 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 mutual 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 in an electrical, mechanical or other form.
  • 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, i.e., may be located in one place, or may be distributed over multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or 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 is essential or the part contributing to the prior art or the technical side. All or part of the case may be embodied in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the present invention. All or part of the steps of the method described in the various embodiments are invented.
  • the foregoing storage medium includes: a USB flash drive, a mobile hard disk, and a read only memory.
  • ROM Read-Only Memory
  • RAM Random Access Memory
  • disk or optical disk and other media that can store program code.

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Description

数据传输中速率的调整方法和设备 本申请要求于 2011年 04月 29日提交中国专利局、 申请号为 201110110612.2、 发明名称为 "数据传输中速率的调整方法和设备" 的中国 专利申请的优先权, 其全部内容通过引用结合在本申请中。
技术领域
本发明实施例涉及视频技术领域, 尤其涉及一种数据传输中速率的调 整方法和设备。 背景技术
目前, 自适应多速率编码 ( Adaptive Multi-Rate和 Adaptive Multi-Rate Wideband; 简称: AMR )语音帧根据语音比特的重要性被区分为 A、 B、 C 三个等级的子流, 其重要性依次降低, 且 AMR语音业务的速率调整方案主 要通过测量网络负荷和语音业务链路质量等资源,触发 AMR语音业务的速 率动态调整。 例如, 当资源能够保证时, 可以提高 AMR语音业务的速率, 从而提供高质量的用户感受; 当资源不足时, 可以降低 AMR语音业务的速 率, 从而降低了用户感受, 但是能保持通过功能。
举例来说, 当小区负载拥塞或 Iub口拥塞, 即资源不足时, AMR语音 业务以保证速率接入, 等到拥塞解除后, 对于上行链路速率调整, 端到端 的语音速率调整过程中,接收端 UE的下行链路拥塞触发的速率调整, 最终 通过速率调整命令通知对端 UE的上行速率下调解决,具体过程概述为核心 网(Core Network; 简称: CN )侧首先向服务无线网络控制器( Serving Radio Network Controller; 简称: SRNC )发送携带有 CN支持的速率, 即 ( CN ) 的上行链路速率控制消息(Rate Control ( CN ) for uplink ), 其中携带 CN 侧支持的无线接入承载子流组合指示 ( RAB sub-Flow Combination Indicator; 简称: RFCI ) 集; SRNC接收到该消息后, 和自身支持的 RFCI 集进行协商, 只有双方都支持的速率, 才被用来传输数据; SRNC将双方都 能够支持的速率的交集, 即 (CN® RNC )携带在上行链路控制消息 (Rate Control ( CN ® RNC ) for uplink )发送给终端设备 ( User Equipment; 简称: UE ), 配置 UE的传输格式集; 最后 UE以速率为 CN和无线网络控制器
( Radio Network Controller; 简称: RNC ) 都能支持的速率的交集
( ( CN®RNC ) )发送 AMR语音业务。
在实现本发明过程中, 发明人发现现有技术中至少存在如下问题: 在 对上行或者下行速率的调整过程中, 消息的传递在端到端之间传递, 需要 几百毫秒( ms ), 从而使得 UE或者 CN响应较慢, 使得在几百 ms内 AMR 语音业务的质量不受控制; 另外, 由于速率调整中可能会丟弃 A等级子流, 从而使得 AMR语音质量严重损伤, 进而影响了用户的体验度。 发明内容
本发明实施例提供一种数据传输中速率的调整方法和设备, 有效地提 高了在速率调整时 UE或者 CN的响应速度以及语音质量,从而有效地提高 了用户的体验度。
本发明的一方面提供一种数据传输中速率的调整方法, 包括: 设备获 取速率调整参数; 所述设备根据所述速率调整参数, 以及对所述数据预先 划分的至少两个等级的子流, 从所述数据中最低等级的子流进行丟弃处理。
本发明另一方面提供一种数据传输中速率的调整设备, 包括: 速率调 整参数获取模块, 设置在所述设备的分组数据汇聚协议层, 用于获取速率 调整参数; 速率调整模块, 设置在所述设备的分组数据汇聚协议层, 用于 根据所述速率调整参数, 以及对所述数据预先划分的至少两个等级的子流, 从所述数据中最低等级的子流进行丟弃处理。 本发明实施例的数据传输中速率的调整方法和设备, 使得时延缩短, 提高了响应的速度以及语音质量, 进而有效地提高了用户的体验度。 附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案, 下面将对 实施例或现有技术描述中所需要使用的附图作一简单地介绍, 显而易见地, 下面描述中的附图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他的附图。
图 1为本发明数据传输中速率的调整方法的一个实施例的流程图; 图 2为本发明数据传输中速率的调整方法的另一个实施例的流程图; 图 3为本发明数据传输中速率的调整方法的又一个实施例的流程图; 图 4为本发明数据传输中速率的调整设备的一个实施例的结构示意图; 图 5为本发明数据传输中速率的调整设备的另一个实施例的结构示意 图。 具体实施方式
为使本发明实施例的目的、 技术方案和优点更加清楚, 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 下所获得的所有其他实施例, 都属于本发明保护的范围。
本文中描述的各种技术可用于各种无线通信系统, 例如全球移动通信 系统( Global System for Mobile communications; 简称: GSM ), 码分多址 ( Code Division Multiple Access; 简称: CDMA ) 系统, 时分多址(Time Division Multiple Access;简称: TDMA )系统,宽带码分多址( Wideband Code Division Multiple Access Wireless; 简称: WCDMA ), 频分多址 ( Frequency Division Multiple Addressing;简称: FDMA )系统,正交频分多址( Orthogonal Frequency-Division Multiple Access; 简称: OFDMA ) 系统, 单载波 FDMA ( SC-FDMA ) 系统, 通用分组无线业务( General Packet Radio Service; 简 称: GPRS ) 系统, 长期演进(Long Term Evolution; 简称: LTE ) 系统, 以 及其他此类通信系统。 术语"系统"和"网络"在本文中常被可互换使用。
本文中结合终端和 /或基站和 /或基站控制器来描述各种方面。
终端, 可以是无线终端也可以是有线终端, 无线终端可以是指向用户 提供语音和 /或数据连通性的设备, 具有无线连接功能的手持式设备、 或连 接到无线调制解调器的其他处理设备。 无线终端可以经无线接入网 (例如, Radio Access Network; 简称: RAN ) 与一个或多个核心网进行通信, 无线 终端可以是移动终端, 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。 例如, 个人通信业务 ( Personal Communication Service; 简称: PCS ) 电话、 无绳电话、 会话发 起协议(SIP )话机、 无线本地环路( Wireless Local Loop; 简称: WLL ) 站、 个人数字助理( Personal Digital Assistant; 简称: PDA )等设备。 无线 终端也可以称为系统、 订户单元 (Subscriber Unit ), 订户站 (Subscriber Station ),移动站( Mobile Station )、移动台( Mobile )、远程站( Remote Station )、 接入点 (Access Point ), 远程终端 (Remote Terminal ), 接入终端 (Access Terminal ), 用户终端 ( User Terminal )、 用户代理(User Agent )、 用户设备 ( User Device )、 或用户装备 ( User Equipment )。
基站(例如, 接入点)可以是指接入网中在空中接口上通过一个或多 个扇区与无线终端通信的设备。 基站可用于将收到的空中帧与 IP分组进行 相互转换, 作为无线终端与接入网的其余部分之间的路由器, 其中接入网 的其余部分可包括网际协议(IP )网络。基站还可协调对空中接口的属性管 理。 例如, 基站可以是 GSM或 CDMA中的基站( Base Transceiver Station; 简称: BTS ), 也可以是 WCDMA中的基站(NodeB ), 还可以是 LTE中的 演进型基站( evolutional Node B; 简称: eNB或 e-NodeB ), 本发明并不限 定。
基站控制器, 可以是 GSM 或 CDMA 中的基站控制器(base station controller; 简称: BSC ), 也可以是 WCDMA中的无线网络控制器( Radio Network Controller; 简称: RNC ), 本发明并不限定。
另外, 本文中术语"和 /或", 仅仅是一种描述关联对象的关联关系, 表 示可以存在三种关系, 例如, A和 /或 B, 可以表示: 单独存在 A, 同时存 在 A和 B, 单独存在 B这三种情况。 另外, 本文中字符 " , —般表示前 后关联对象是一种 "或" 的关系。
图 1 为本发明数据传输中速率的调整方法的一个实施例的流程图, 如 图 1所示。
101、 设备获取速率调整参数。
在本实施例中,该设备可以为 UE; 或者,该设备还可以为网络侧设备, 例如 RAN中的 RNC。 另外, 该设备可以根据本设备内资源状态反馈来动 态调整业务源数据发送速率以适应资源状态, 举例来说, 设备可以预先配 置该速率调整参数; 或者, 可以通过接收测量报告, 并根据该测量报告中 的测量值与预先配置的资源判决门限相比较, 获取与速率调整命令对应的 速率调整参数。
102、 该设备根据该速率调整参数, 以及对数据预先划分的至少两个等 级的子流, 从数据中最低等级的子流进行丟弃处理。
在本实施例中, 设备可以根据该速率调整参数, 以及对数据预先划分 的至少两个等级的子流, 从数据中最低等级的子流进行丟弃处理, 并可以 保留最高等级的子流。 另外, 设备还可以根据速率调整参数, 以及对数据 预先划分的至少三个等级的子流, 从数据中最低等级的子流进行丟弃处理。 举例来说, 数据可以根据语音比特的重要性, 划分两个等级, 例如, 分别 为 A, C等级, 或划分为三个等级的子流, 例如, 分别为 A、 B、 C这三个 等级子流, 等等, 其重要性依次降低。 当设备接收到速率调整参数后, 可 以根据该速率调整参数, 从数据中最低等级的子流(即 C等级的子流)开 始进行丟弃处理。
在本实施例中, 通过获取速率调整参数, 并根据该速率调整参数, 以 及对数据预先划分的至少两个等级的子流, 从数据中最低等级的子流进行 丟弃处理, 从而在速率调整时, 速率调整参数的时延只是在设备内部通信 时延, 即属于板间通信或者板内通信, 不涉及其他多个网元交互, 从而使 得时延缩短, 提高了速率调整的响应速度, 另外, 由于优先将数据中重要 性低的子流丟弃, 因此, 相对现有技术中不区分重要性, 即丟弃数据中任 意重要性级别的子流而言, 本发明有效地提高了语音质量, 进而有效地提 高了用户的体验度。
图 2为本发明数据传输中速率的调整方法的另一个实施例的流程图, 在本实施例中, 以设备为 RNC, 且以下行方向为例, 详细介绍本实施例的 技术方案。
201、 RNC接收测量报告, 该测量报告包括测量值。
202、 RNC将该测量值与预先配置的资源判决门限相比较,若下行链路 资源受限或者单链路质量变差, 则执行 203; 若下行链路资源解除受限或者 单链路质量变好, 则执行 206。
在本实施例中,该测量值包括信道质量指示( Channel Quality Indication; 简称: CQI )、 链路丟包、 无线网络控制器和基站之间的接口 ( Iub Interface between an RNC and a Node B; 简称: IUB )传输资源利用率和 /或下行发射 功率。 资源判决门限可以预先设置在网络侧设备中, 且包括: CQI拥塞门 限、 CQI拥塞解除门限、 链路丟包拥塞门限, 链路丟包拥塞解除门限、 下 行功率拥塞门限、下行功率拥塞解除门限、 IUB传输资源拥塞门限和 /或 IUB 传输资源拥塞解除门限。 其中, 该 CQI可以在物理(Physical Layer; 简称: PHY ) 层或者 MAC 层, 链路丟包可以指媒体访问控制 (Media Access Control; 简称: MAC )层丟包。
203、 RNC获取资源受限状态, 并根据资源受限状态, 获取速率向下调 整命令。
204、 RNC根据速率向下调整命令, 获取与所述速率向下调整命令对应 的丟包比例下降步长, 并^^据该丟包比例下降步长, 计算数据丟包比例。
步骤 205、 RNC根据该数据丟包比例, 以及对数据预先划分的至少两 个等级的子流, 从数据中最低等级的子流进行丟弃处理。
在本实施例中, 若满足下述至少之一项: CQI小于等于 CQI拥塞门限、 链路丟包大于等于链路丟包拥塞门限, 下行发射功率大于等于下行功率拥 塞门限, 下行 IUB传输资源利用率大于等于 IUB传输资源拥塞门限, 则说 明检测到下行链路资源受限或者单链路质量变差。
另外, 若检测到下行链路资源受限或者单链路质量变差 (例如: CQI 小于等于 CQI门限) , 则获取资源受限状态时, 并获取资源受限状态对应 的速率向下调整命令, 再从预先存储速率调整参数中, 获取与该速率向下 调整命令对应的丟包比例下降步长, 并根据该丟包比例下降步长, 计算数 据丟包比例, 再根据该数据丟包比例, 以及对数据预先划分的至少两个等 级的子流, 从数据中最低等级的子流进行丟弃处理, 例如: 以语音重要性 为例, 根据该数据丟包比例, 以及数据预先划分的三个等级的子流, 对数 据中的 C等级的子流和 B等级的子流进行丟弃处理。 具体的, 可以在分组 数据汇聚协议( Packet Data Convergence Protocol;简称: PDCP )层中的 PDCP PDU包中只包含 A等级的子流, 从而实现对数据速率向下调整。
206、 RNC获取资源受限解除状态, 并根据该资源受限解除状态, 获取 速率向上调整命令。
207、 RNC根据速率向上调整命令, 获取与该速率向上调整命令对应的 丟包比例上升步长, 并根据该丟包比例上升步长, 计算数据丟包比例。 208、 RNC根据该数据丟包比例, 以及对数据预先划分的至少两个等级 的子流, 从数据中最低等级的子流进行丟弃处理。
在本实施例中, 若满足下述至少之一: CQI大于 CQI拥塞解除门限、 链路丟包小于链路丟包拥塞解除门限, 下行发射功率小于下行功率拥塞解 除门限, 下行 IUB传输资源利用率小于 IUB传输资源拥塞解除门限, 则说 明检测到下行链路资源受限解除或者单链路质量变好。
另外, 若检测到下行链路资源受限解除或者单链路质量变好, 则获取 资源受限解除状态, 并获取与该资源受限解除状态对应的速率向上调整命 令, 再从预先存储在 RNC的 PDCP层中的速率调整参数中, 获取与速率向 上调整命令对应的丟包比例上升步长, 并^^据该丟包比例上升步长, 计算 数据丟包比例, 再根据该数据丟包比例, 以及对数据预先划分的至少两个 等级的子流, 从数据中最低等级的子流进行丟弃处理, 从而实现对数据速 率向上调整。
在本实施例中, 通过 RNC接收测量报告, 该测量报告包括测量值, 并 将该测量值与预先配置的资源判决门限相比较, 获取速率调整命令, 并根 据速率调整命令, 获取与该速率调整命令对应的速率调整参数, 并根据该 速率调整参数, 以及对数据预先划分的至少两个等级的子流, 从数据中最 低等级的子流进行丟弃处理, 从而在速率调整时, 速率调整命令和参数的 时延只是在 RNC内部通信时延, 即属于板间通信或者板内通信, 不涉及其 他多个网元交互, 从而使得时延缩短, 提高了速率调整的响应速度, 另夕卜, 由于优先将数据中重要性低的子流丟弃, 因此, 相对现有技术中不区分重 要性, 即丟弃数据中任意重要性级别的子流而言, 本发明有效地提高了语 音质量, 进而有效地提高了用户的体验度。
图 3 为本发明数据传输中速率的调整方法的又一个实施例的流程图, 在本实施例中, 以设备为 UE, 且以上行方向为例, 详细介绍本实施例的技 术方案, 如图 3所示。 301、 UE接收测量报告, 该测量包括测量值。
302、 UE将该测量值与预先配置的资源判决门限相比较, 若上行链路 资源受限或者单链路质量变差, 则执行 303; 若上行链路资源解除受限或者 单链路质量变好, 则执行 306。
在本实施例中, 测量值包括: 上行链路功率余裕空间 (Uplink Power Headroom; 简称: UPH ) 、 链路丟包和 /或上行发射功率。 资源判决门限可 以是网络侧下发的参数,也可以是在 UE侧配置的,且该资源判决门限包括: UPH拥塞门限、 UPH拥塞解除门限、 链路丟包拥塞门限、 链路丟包拥塞解 除门限、 上行功率拥塞门限和 /或上行功率拥塞解除门限。 其中, 该 UPH可 以在 PHY层或者 MAC层; 该链路丟包可以为 MAC层丟包。
303、 UE 获取资源受限状态, 并根据资源受限状态, 获取速率向下调 整命令。
304、 UE根据速率向下调整命令, 获取与该速率向下调整命令对应的 丟包比例下降步长, 并根据该丟包比例下降步长, 计算数据丟包比例。
305、 UE根据该数据丟包比例, 以及对数据预先划分的至少两个等级 的子流, 从数据中最低等级的子流进行丟弃处理。
在本实施例中,若满足下述至少之一项: UPH小于等于 UPH拥塞门限、 链路丟包大于等于链路丟包拥塞门限, 上行发射功率大于等于上行功率拥 塞门限, 发生 6A事件, 则说明上行链路资源受限或者单链路质量变差获取 资源受限状态。
例如, 当检测到上行链路资源受限或者单链路质量变差, 则获取资源 受限状态,并获取资源受限状态对应的速率向下调整命令,再从预先从 RNC 的 PDCP层接收到的速率调整参数中, 获取与该速率向下调整命令对应的 丟包比例下降步长, 并计算数据丟包比例, 并根据该数据丟包比例, 以及 对数据预先划分的至少两个等级的子流, 从数据中最低等级的子流进行丟 弃处理, 例如: 以语音重要性为例, 根据该数据丟包比例, 以及数据预先 划分的三个等级的子流, 对数据中的 C等级的子流和 B等级的子流进行丟 弃处理, 并在 PDCP层中的 PDCP PDU包中只包含 A等级的子流, 从而实 现对数据速率向下调整。
值得注意的是, UE的 PDCP层中的速率调整参数, 预先配置在 RNC 的 PDCP层, 具体可以由操作维护 (Operation Maintenance; 简称: OM ) 模块向 RNC的 PDCP层中配置速率调整参数,然后发送给 UE的 PDCP层, 再由 UE的 PDCP层接收并保存。
306、 UE的 RRC层获取资源受限解除状态, 并根据该资源受限解除状 态, 获取速率向上调整命令。
307、 UE根据速率向上调整命令, 获取与该速率向上调整命令对应的 丟包比例上升步长, 并根据该丟包比例上升步长计算数据丟包比例。
308、 UE根据丟数据包比例, 以及对数据预先划分的至少两个等级的 子流, 从数据中最低等级的子流进行丟弃处理。
在本实施例中,若满足下述至少之一项: UPH大于 UPH拥塞解除门限、 链路丟包小于链路丟包拥塞解除门限, 上行发射功率小于上行功率拥塞解 除门限和 /或发生 6B 事件, 则说明检测到上行链路资源受限解除或者单链 路质量变差。
例如, 当 RRC层检测到上行链路资源受限解除或者单链路质量变好, 则获取资源受限解除状态, 并获取资源解除受限状态对应的速率向上调整 命令, 再从预先从 RNC的 PDCP层接收到的速率调整参数中, 获取与该速 率向上调整命令对应的丟包比例上升步长, 并根据该丟包比例上升步长计 算数据丟包比例, 以语音重要性为例, 根据该数据丟包比例, 以及数据预 先划分的三个等级的子流, 对数据中的 C等级的子流和 B等级的子流进行 丟弃处理, 从而实现对数据速率向上调整。
在本实施例中, 通过 UE接收测量报告, 并将该测量报告与预先配置的 资源判决门限相比较, 获取速率调整命令, 最后 UE根据速率调整命令, 获 取与该速率调整命令对应的速率调整参数, 并根据该速率调整参数, 以及对 数据预先划分的至少两个等级的子流, 从数据中最低等级的子流进行丟弃处 理, 从而在速率调整时, 速率调整命令和参数的时延只是在 UE内部通信时 延, 即属于板间通信或者板内通信, 不涉及其他多个网元交互, 从而使得时 延缩短, 提高了速率调整的响应速度, 另外, 由于优先将数据中重要性低的 子流丟弃, 因此, 相对现有技术中不区分重要性, 即丟弃数据中任意重要性 级别的子流而言, 本发明有效地提高了语音质量, 进而有效地提高了用户的 体验度。
图 4为本发明数据传输中速率的调整设备的一个实施例的结构示意图, 如图 4所示, 本实施例的设备可以是 UE或 RNC或 BSC, 所述设备包括: 速率调整参数获取模块 11和速率调整模块 12, 其中,速率调整参数获取模 块 11设置在设备的 PDCP层, 用于获取速率调整参数; 速率调整模块 12 设置在设备的 PDCP层, 用于根据速率调整参数, 以及对数据预先划分的 至少两个等级的子流, 从数据中最低等级的子流进行丟弃处理。
在本实施例中,该设备可以为 UE; 或者,该设备还可以为网络侧设备, 例如 CN中的 RNC。
在本实施例中, 通过获取速率调整参数, 并根据该速率调整参数, 以 及对数据预先划分的至少两个等级的子流, 从数据中最低等级的子流进行 丟弃处理, 从而在速率调整时, 速率调整参数的时延只是在设备内部通信 时延, 即属于板间通信或者板内通信, 不涉及其他多个网元交互, 从而使 得时延缩短, 提高了速率调整的响应速度, 另外, 由于优先将数据中重要 性低的子流丟弃, 因此, 相对现有技术中不区分重要性, 即丟弃数据中任 意重要性级别的子流而言, 本发明有效地提高了语音质量, 进而有效地提 高了用户的体验度。
进一步的, 图 5 为本发明数据传输中速率的调整设备的另一个实施例 的结构示意图, 在上述图 4所示实施例的基础上, 该设备还可以包括: 接 收模块 13和速率调整命令获 莫块 14, 其中, 接收模块 13设置在设备的 RRC层, 用于接收测量报告, 该测量报告包括测量值; 速率调整命令获取 模块 14,设置在设备的 RRC层, 用于将测量值与预先配置的资源判决门限 相比较, 获取速率调整命令, 并可以将该速率调整命令发送给速率调整参 数获取模块 11。则该速率调整参数获取模块 11可以具体用于获取与该速率 调整命令对应的速率调整参数。
在本实施例中,通过设置在无线资源控制协议( Radio Resource Control; 简称: RRC ) 的接收模块 13接收测量报告, 该测量报告包括测量值, 并通 过设置在该 RRC层的速率调整命令获取模块 14将该测量值与预先配置的 资源判决门限相比较, 获取速率调整命令, 并发送给设置在 PDCP层的速 率调整参数获取模块 11 , 以供速率调整模块 12根据速率调整命令, 获取与 该速率调整命令对应的速率调整参数, 从而触发速率调整模块 12根据该速 率调整参数, 以及对数据预先划分的至少两个等级的子流, 从数据中最低 等级的子流进行丟弃处理, 从而在速率调整时, 速率调整命令和参数的时 延只是在设备的 RRC层与 PDCP层之间的通信时延, 即属于板间通信或者 板内通信, 不涉及其他多个网元交互, 从而使得时延缩短, 提高了速率调 整的响应速度, 另外, 由于优先将数据中重要性低的子流丟弃, 因此, 相 对现有技术中不区分重要性, 即丟弃数据中任意重要性级别的子流而言, 本发明有效地提高了语音质量, 进而有效地提高了用户的体验度。
更进一步的, 在本发明的又一个实施例中, 在上述图 4所示实施例的基 础上, 该速率调整参数获取模块 11还可以具体用于预先配置所述速率调整 史。
更进一步的, 在上述图 5所示实施例的基础上, 在本发明的另一个实施 例中, 当设备为网络侧设备, 例如 RNC时, 该接收模块 13接收到的测量值 可以包括 CQI、 链路丟包、 下行 IUB传输资源利用率和 /或下行发射功率, 以及预先存储在 PDCP层的资源判决门限包括 CQI拥塞门限、 CQI拥塞解除 门限、 链路丟包拥塞门限、 链路丟包拥塞解除门限、 下行功率拥塞门限、 下 行功率拥塞解除门限、 IUB传输资源拥塞门限和 /或 IUB传输资源拥塞解除 门限, 则速率调整命令获取模块 14具体用于判断满足下述至少之一项: CQI 小于等于 CQI拥塞门限,链路丟包大于等于链路丟包拥塞门限, 下行发射功 率大于等于下行功率拥塞门限和 /或下行 IUB传输资源利用率大于等于 IUB 传输资源拥塞门限时, 获取资源受限状态, 并根据资源受限状态, 获取速率 向下调整命令。
在本发明的另一实施例中, 所述速率调整命令获取模块 14具体用于判 断满足下述至少之一: CQI大于 CQI拥塞解除门限, 链路丟包小于链路丟 包拥塞解除门限、 下行发射功率小于下行功率拥塞解除门限和 /或下行 IUB 传输资源利用率小于所述 IUB传输资源拥塞解除门限时, 获取资源受限解 除状态, 并根据资源受限解除状态, 获取速率向上调整命令。
例如,速率调整参数获取模块 11具体用于若接收到速率向下调整命令, 则根据该速率向下调整命令, 从预先存储在网络侧设备的 PDCP层中的速 率调整参数中, 获取与速率向下调整命令对应的丟包比例下降步长, 并触 发速率调整模块 12根据该丟包比例下降步长, 计算数据丟包比例, 并根据 数据丟包比例, 以及对数据预先划分的至少两个等级的子流, 从数据中最 低等级的子流进行丟弃处理。
在本发明的另一实施例中, 速率调整参数获取模块 11具体用于若接收 到速率向上调整命令, 则根据该速率向上调整命令, 从预先存储在网络侧 设备的 PDCP层中的速率调整参数中, 获取与速率向上调整命令对应的丟 包比例上升步长, 并触发速率调整模块 12根据该丟包比例下降步长, 计算 数据丟包比例, 并根据该数据丟包比例, 以及对数据预先划分的至少两个 等级的子流, 从数据中最低等级的子流进行丟弃处理, 例如: 优先丟弃数 据中一部分最低等级的子流或者不丟。
其中, 该速率调整参数包括丟包比例上升步长和下降步长。 本实施例的设备可以执行图 2所示方法实施例的技术方案, 其实现原 理相类似, 此处不再赘述。
在本实施例中, 通过 RNC的 RRC层中的接收模块 13接收测量报告, 该测量报告包括测量值, 并通过 RRC层中的速率调整命令获取模块 14将 该测量值与预先配置的资源判决门限相比较, 获取速率调整命令, 并将该 速率调整命令发送给 RNC的 PDCP层的速率调整参数获取模块 11 , 最后 RNC的 PDCP层的速率调整参数获取模块 11根据速率调整命令,获取与该 速率调整命令对应的速率调整参数, 并触发速率调整模块 12根据该速率调 整参数, 以及对数据预先划分的至少两个等级的子流, 从数据中最低等级 的子流进行丟弃处理, 从而在速率调整时, 速率调整命令和参数的时延只 是在 RNC的 RRC层与 PDCP层之间的通信时延, 即属于板间通信或者板 内通信, 不涉及其他多个网元交互, 从而使得时延缩短, 提高了速率调整 的响应速度, 另外, 由于优先将数据中重要性低的子流丟弃, 因此, 相对 现有技术中不区分重要性, 即丟弃数据中任意重要性级别的子流而言, 本 发明有效地提高了语音质量, 进而有效地提高了用户的体验度。
在上述图 5 所示实施例的基础上, 在本发明的又一个实施例中, 当设 备为 UE时,接收模块 13接收到的测量值具体包括 UPH、链路丟包和 /或上 行发射功率, 以及 UE的 PDCP层从网络侧设备(例如: RNC ) 的 PDCP 层获取的资源判决门限, 该资源判决门限包括 UPH拥塞门限、 UPH拥塞解 除门限、 链路丟包拥塞门限、 链路丟包拥塞解除门限、 上行功率拥塞门限 和 /或上行功率拥塞解除门限,则速率调整命令获取模块 14具体用于判断满 足下述至少之一项: UPH小于等于 UPH拥塞门限,链路丟包大于等于链路 丟包拥塞门限和 /或上行发射功率大于等于上行功率拥塞门限时, 获取资源 受限状态, 并根据资源受限状态, 获取速率向下调整命令; 或者,
在本发明的另一实施例中, 速率调整命令获取模块 14具体用于判断满 足至少之一项: UPH大于 UPH拥塞解除门限, 链路丟包小于链路丟包拥 塞解除门限和 /或上行发射功率小于上行功率拥塞解除门限时, 获取资源受 限解除状态, 并根据资源受限解除状态, 获取速率向上调整命令。
例如,速率调整参数获取模块 11具体用于若接收到速率向下调整命令, 则根据该速率向下调整命令, 从预先从网络侧设备的 PDCP层中接收到的 速率调整参数中, 获取与速率向下调整命令对应的丟包比例下降步长, 并 触发速率调整模块 12根据该丟包比例下降步长, 计算数据丟包比例, 并根 据该数据丟包比例, 以及对数据预先划分的至少两个等级的子流, 从数据 中最低等级的子流进行丟弃处理。
在本发明的另一实施例中, 速率调整参数获取模块 11具体用于若接收 到速率向上调整命令, 则根据该速率向上调整命令, 从预先从网络侧设备 的 PDCP层中接收到的速率调整参数中, 获取与速率向上调整命令对应的 丟包比例上升步长, 并触发速率调整模块 12根据该丟包比例下降步长, 计 算数据丟包比例, 并根据该数据丟包比例, 以及对数据预先划分的至少两 个等级的子流, 从数据中最低等级的子流进行丟弃处理, 例如: 优先丟弃 数据中一部分最低等级的子流或者不丟。
其中, 速率调整参数包括丟包比例上升步长和下降步长。
本实施例的设备可以执行图 3 所示方法实施例的技术方案, 其实现原 理相类似, 此处不再赘述。
在本实施例中,通过 UE的 RRC层中设置的接收模块 13接收测量报告, 该测量报告包括测量值,并通过 RRC层中设置的速率调整命令获取模块 14 将该测量值与预先配置的资源判决门限相比较, 获取速率调整命令, 并将 该速率调整命令发送给 UE的 PDCP层中设置的速率调整参数获取模块 11 , 最后速率调整参数获取模块 11根据速率调整命令, 获取与该速率调整命令 对应的速率调整参数, 并触发速率调整模块 12根据该速率调整参数以及对 数据预先划分的至少两个等级的子流, 从数据中最低等级的子流进行丟弃 处理, 从而在速率调整时, 速率调整命令的时延只是在 UE 的 RRC层与 PDCP层之间的通信时延, 即属于板间通信或者板内通信, 不涉及其他多个 网元交互, 从而使得时延缩短, 提高了速率调整的响应速度, 另外, 由于 优先将数据中重要性低的子流丟弃, 因此, 相对现有技术中不区分重要性, 即丟弃数据中任意重要性级别的子流而言, 本发明有效地提高了语音质量, 进而有效地提高了用户的体验度。
所属领域的技术人员可以清楚地了解到, 为描述的方便和简洁, 上述 描述的系统, 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。
在本申请所提供的几个实施例中, 应该理解到, 所揭露的系统, 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 到另一个系统, 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。
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。
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。
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
( Read-Only Memory; 简称: ROM )、 随机存取存储器( Random Access Memory; 简称: RAM )、 磁碟或者光盘等各种可以存储程序代码的介质。
最后应说明的是: 以上实施例仅用以说明本发明的技术方案, 而非对 其限制; 尽管参照前述实施例对本发明进行了详细的说明, 本领域的普通 技术人员应当理解: 其依然可以对前述各实施例所记载的技术方案进行修 改, 或者对其中部分技术特征进行等同替换; 而这些修改或者替换, 并不 使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。

Claims

权利要求
1、 一种数据传输中速率的调整方法, 其特征在于, 包括:
设备获取速率调整参数;
所述设备根据所述速率调整参数, 以及对所述数据预先划分的至少两 个等级的子流, 从所述数据中最低等级的子流进行丟弃处理。
2、 根据权利要求 1所述的数据传输中速率的调整方法, 其特征在于, 所述设备获取速率调整命令, 包括:
所述设备预先配置所述速率调整参数。
3、 根据权利要求 1所述的数据传输中速率的调整方法, 其特征在于, 所述设备获取速率调整参数之前还包括:
所述设备接收测量报告, 所述测量报告包括测量值;
所述设备将所述测量值与预先配置的资源判决门限相比较, 获取所述 速率调整命令;
则所述设备获取速率调整参数具体包括:
所述设备获取与所述速率调整命令对应的速率调整参数。
4、 根据权利要求 3所述的数据传输中速率的调整方法, 其特征在于, 所述设备为网络侧设备, 则所述测量值包括: 信道质量指示、 链路丟包、 下行无线网络控制器和基站之间的接口传输资源利用率和 /或下行发射功 率。
5、 根据权利要求 4所述的数据传输中速率的调整方法, 其特征在于, 所述资源判决门限包括信道质量指示拥塞门限、 信道质量指示拥塞解除门 限、 链路丟包拥塞门限、 链路丟包拥塞解除门限、 下行功率拥塞门限、 下 行功率拥塞解除门限、 无线网络控制器和基站之间的接口传输资源拥塞门 限和 /或无线网络控制器和基站之间的接口传输资源拥塞解除门限。
6、 根据权利要求 5所述的数据传输中速率的调整方法, 其特征在于, 所述设备将所述测量值与预先配置的资源判决门限相比较, 获取所述速率 调整命令, 包括:
判断满足下述至少之一: 所述信道质量指示小于等于所述信道质量指 示拥塞门限, 所述链路丟包大于等于所述链路丟包拥塞门限、 所述下行发 射功率大于等于所述下行功率拥塞门限, 所述下行无线网络控制器和基站 之间的接口传输资源利用率大于等于所述无线网络控制器和基站之间的接 口传输资源拥塞门限时, 获取资源受限状态, 并根据所述资源受限状态, 获取速率向下调整命令; 或者,
判断满足下述至少之一: 所述信道质量指示大于所述信道质量指示拥 塞解除门限, 所述链路丟包小于所述链路丟包拥塞解除门限、 所述下行发 射功率小于所述下行功率拥塞解除门限, 所述下行无线网络控制器和基站 之间的接口传输资源利用率小于所述无线网络控制器和基站之间的接口传 输资源拥塞解除门限时, 获取资源受限解除状态, 并根据所述资源受限解 除状态, 获取速率向上调整命令。
7、 根据权利要求 3所述的数据传输中速率的调整方法, 其特征在于, 所述设备为用户设备, 则所述测量值包括: 上行链路功率余裕空间、 链路 丟包和 /或上行发射功率。
8、 根据权利要求 7所述的数据传输中速率的调整方法, 其特征在于, 预先配置所述资源判决门限, 且包括: 上行链路功率余裕空间拥塞门限、 上行链路功率余裕空间拥塞解除门限、 链路丟包拥塞门限、 链路丟包拥塞 解除门限、 上行功率拥塞门限和 /或上行功率拥塞解除门限。
9、 根据权利要求 8所述的数据传输中速率的调整方法, 其特征在于, 所述设备将所述测量值与预先配置的资源判决门限相比较, 获取速率调整 命令, 包括:
判断满足下述至少之一: 所述上行链路功率余裕空间小于等于所述上 行链路功率余裕空间拥塞门限, 所述链路丟包大于等于所述链路丟包拥塞 门限, 所述上行发射功率大于等于所述上行功率拥塞门限时, 获取速率向 下调整命令; 或者,
判断满足下述至少之一: 所述上行链路功率余裕空间大于所述上行链 路功率余裕空间拥塞解除门限, 所述链路丟包小于所述链路丟包拥塞解除 门限, 所述上行发射功率小于所述上行功率拥塞解除门限时, 获取速率向 上调整命令。
10、 根据权利要求 6或 9所述的数据传输中速率的调整方法, 其特征 在于, 所述速率调整参数包括丟包比例下降步长和丟包比例上升步长, 则 所述设备根据所述速率调整参数, 以及对所述数据预先划分的至少两个等 级的子流, 从所述数据中最低等级的子流进行丟弃处理, 包括:
若获取与速率向下调整命令对应的丟包比例下降步长, 则所述设备根 据所述丟包比例下降步长, 计算数据丟包比例, 并根据所述数据丟包比例, 以及对所述数据预先划分的至少两个等级的子流, 从所述数据中最低等级 的子流进行丟弃处理; 或者,
若获取与速率向上调整命令对应的丟包比例上升步长, 则所述设备根 据所述丟包比例上升步长, 计算数据丟包比例, 并根据所述数据丟包比例, 以及对所述数据预先划分的至少两个等级的子流, 从所述数据中最低等级 的子流进行丟弃处理。
11、 一种数据传输中速率的调整设备, 其特征在于, 包括:
速率调整参数获取模块, 设置在所述设备的分组数据汇聚协议层, 用 于获取速率调整参数;
速率调整模块, 设置在所述设备的分组数据汇聚协议层, 用于根据所 述速率调整参数, 以及对所述数据预先划分的至少两个等级的子流, 从所 述数据中最低等级的子流进行丟弃处理。
12、 根据权利要求 11所述的设备, 其特征在于, 所述速率调整参数获 取模块具体用于预先配置所述速率调整参数。
13、 根据权利要求 11所述的设备, 其特征在于, 还包括: 接收模块, 设置在所述设备的无线资源控制协议层, 用于接收测量报 告, 所述测量 ^艮告包括测量值;
速率调整命令获取模块, 设置在所述设备的无线资源控制协议层, 用 于将所述测量值与预先配置的资源判决门限相比较, 获取所述速率调整命 令对应的速率调整参数。
14、 根据权利要求 13所述的设备, 当所述设备为网络侧设备、 所述测 量值包括信道质量指示、 链路丟包、 下行无线网络控制器和基站之间的接 口传输资源利用率和 /或下行发射功率, 以及所述资源判决门限包括信道质 量指示拥塞门限、 信道质量指示拥塞解除门限、 链路丟包拥塞门限、 链路 丟包拥塞解除门限、 下行功率拥塞门限、 下行功率拥塞解除门限、 无线网 络控制器和基站之间的接口传输资源拥塞门限和 /或无线网络控制器和基站 之间的接口传输资源拥塞解除门限时, 所述速率调整命令获取模块具体用 于判断满足下述至少之一: 所述信道质量指示小于等于所述信道质量指示 拥塞门限, 所述链路丟包大于等于所述链路丟包拥塞门限、 所述下行发射 功率大于等于所述下行功率拥塞门限, 所述下行无线网络控制器和基站之 间的接口传输资源利用率大于等于所述无线网络控制器和基站之间的接口 传输资源拥塞门限时, 获取速率向下调整命令, 或者,
所述速率调整命令获取模块具体用于判断满足下述至少之一: 所述信 道质量指示大于所述信道质量指示拥塞解除门限, 所述链路丟包小于所述 链路丟包拥塞解除门限、 所述下行发射功率小于所述下行功率拥塞解除门 限, 所述下行无线网络控制器和基站之间的接口传输资源利用率小于所述 无线网络控制器和基站之间的接口传输资源拥塞解除门限时, 获取速率向 上调整命令。
15、 根据权利要求 13所述的设备, 其特征在于, 当所述设备为用户设 备、 所述测量值包括上行链路功率余裕空间、链路丟包和 /或上行发射功率, 以及所述资源判决门限包括上行链路功率余裕空间拥塞门限、 上行链路功 率余裕空间拥塞解除门限、 链路丟包拥塞门限、 链路丟包拥塞解除门限、 上行功率拥塞门限和 /或上行功率拥塞解除门限时, 所述速率调整命令获取 模块具体用于判断满足下述至少之一: 所述物理层的上行链路功率余裕空 间小于等于所述上行链路功率余裕空间拥塞门限, 媒体访问控制层的上行 链路功率余裕空间小于等于所述上行链路功率余裕空间拥塞门限, 所述链 路丟包大于等于所述链路丟包拥塞门限, 所述上行发射功率大于等于所述 上行功率拥塞门限时, 获取速率向下调整命令, 或者,
所述速率调整命令获取模块具体用于判断满足下述至少之一: 所述上 行链路功率余裕空间大于所述上行链路功率余裕空间拥塞解除门限, 所述 链路丟包小于所述链路丟包拥塞解除门限, 所述上行发射功率小于所述上 行功率拥塞解除门限时, 获取速率向上调整命令。
16、 根据权利要求 14或 15所述的设备, 其特征在于, 所述速率调整 参数包括丟包比例下降步长和丟包比例上升步长, 则所述速率调整模块具 体用于若获取与速率向下调整命令对应的丟包比例下降步长, 则根据所述 丟包比例下降步长, 计算数据丟包比例, 并根据所述数据丟包比例, 以及 对所述数据预先划分的至少两个等级的子流, 从所述数据中最低等级的子 流进行丟弃处理; 或者,
所述速率调整模块具体用于若获取与速率向上调整命令对应的丟包比 例上升步长, 则根据所述丟包比例上升步长, 计算数据丟包比例, 并根据 所述数据丟包比例, 以及对所述数据预先划分的至少两个等级的子流, 从 所述数据中最低等级的子流进行丟弃处理。
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CN1802806A (zh) * 2003-10-22 2006-07-12 中兴通讯股份有限公司 自适应多速率语音编码模式的调整方法
CN1905413A (zh) * 2006-08-03 2007-01-31 华为技术有限公司 自适应多速率业务调速方法及其系统
CN101753440A (zh) * 2009-12-18 2010-06-23 华为技术有限公司 主动队列管理方法、装置和无线网络控制器

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