WO2018028638A1 - Procédé, dispositif, système, équipement associé, et support de stockage devant être utilisés dans la transmission d'informations - Google Patents

Procédé, dispositif, système, équipement associé, et support de stockage devant être utilisés dans la transmission d'informations Download PDF

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Publication number
WO2018028638A1
WO2018028638A1 PCT/CN2017/096852 CN2017096852W WO2018028638A1 WO 2018028638 A1 WO2018028638 A1 WO 2018028638A1 CN 2017096852 W CN2017096852 W CN 2017096852W WO 2018028638 A1 WO2018028638 A1 WO 2018028638A1
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WIPO (PCT)
Prior art keywords
information
data transmission
network device
transmission control
control information
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PCT/CN2017/096852
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English (en)
Chinese (zh)
Inventor
李刚
陈亚迷
刘志明
Original Assignee
中国移动通信有限公司研究院
中国移动通信集团公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority claimed from CN201610666594.9A external-priority patent/CN107734550A/zh
Priority claimed from CN201610666510.1A external-priority patent/CN107734522A/zh
Application filed by 中国移动通信有限公司研究院, 中国移动通信集团公司 filed Critical 中国移动通信有限公司研究院
Publication of WO2018028638A1 publication Critical patent/WO2018028638A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18—Negotiating wireless communication parameters
    • H04W28/22—Negotiating communication rate

Definitions

  • the application is based on a Chinese patent application with an application number of 201610666510.1, an application date of August 12, 2016, and an application number of 201610666594.9, and an application date of August 12, 2016, and requires the priority of the Chinese patent application.
  • the entire contents of the Chinese Patent Application are incorporated herein by reference.
  • the present invention relates to the field of wireless communication technologies, and in particular, to an information transmission method, apparatus, system, related device, and computer readable storage medium.
  • the traditional Transmission Control Protocol passes the "Slow Start”, “Congestion Void” (Congestion Void), “Fast retransmit”, “Fast Recovery”.
  • a series of congestion control mechanisms such as the (Fast Recovery) algorithm, implement congestion control for data transmission.
  • the slow start mainly adjusts the congestion window (CWnd, Congestion Window) according to the network condition to gradually increase the amount of data sent each time, so as to avoid congestion when a large number of data packets are sent from the beginning, CWnd presents an exponential form.
  • the traditional TCP congestion control scheme is proposed for the application scenario where the terminal location is fixed and the transmission network environment is relatively stable, which has a great advantage for improving the performance of the wired network.
  • terminals can access the Internet through a cellular network, and there are many base stations in the cellular network, the number of terminal accesses changes from time to time, the terminal frequently switches base stations from time to time, and because of wireless The channel environment, the state of the wireless network, and the movement of the terminal, the wireless side transmission status of the cellular terminal is rapidly changing.
  • the current mechanism has certain tentative and blindness. In severe cases, there will be a pseudo timeout phenomenon, which causes waste of wireless resources and reduces the throughput rate of the wireless communication system.
  • the existing wireless network and TCP/application server (such as video-based Dynamic Adaptive Streaming over HTTP (DASH)) are completely transparent and are not directly implemented between the two.
  • Interaction adaptation such as TCP server window control, is set based on packet loss and TCP layer throughput estimates.
  • the loss of TCP packets may be caused by the wireless side.
  • the wireless link is part of the end-to-end TCP link, and the quality of the wireless link also affects TCP throughput.
  • slow TCP regulation is difficult to effectively adapt to very dynamic wireless channels and wireless rates.
  • the current rate adjustment of the video server is based on the end-to-end service rate for rate estimation and rate adjustment, and there is also a problem of mismatch with the actual available wireless environment, thereby affecting The data transmission efficiency reduces the network resource utilization of the wireless network.
  • embodiments of the present invention provide an information transmission method, apparatus, system, related device, and computer readable storage medium.
  • an embodiment of the present invention provides an information transmission method, including:
  • the wireless access network device generates data transmission control information according to the wireless transmission capability information and/or the buffer space information;
  • the wireless access network device provides the data transmission control information to an application server and/or a user equipment (UE, User Equipment);
  • UE User Equipment
  • the application server and/or the UE performs transmission control on data transmission between itself and the peer according to the data transmission control information.
  • the wireless transmission capability information includes at least one of the following information: available bandwidth information allocated to the UE, cell congestion information, channel quality information measured by the UE, and real-time air interface rate information;
  • the cache space information includes the following: At least one of the information: total cache size information, cache space remaining size information, cache space fill rate, cache space size change value.
  • the radio access network device generates data transmission control information according to the wireless transmission capability information and/or the cache space information, including:
  • the radio access network device determines that the ratio of the total buffer space to the first preset padding time is the first data transmission rate
  • the radio access network device generates data transmission control information according to the wireless transmission capability information and/or the cache space information, including:
  • the radio access network device determines that the ratio of the remaining size of the buffer space to the second preset padding time is a third data transmission rate
  • the radio access network device Determining, by the radio access network device, the data transmission control information according to the third data transmission rate or the available bandwidth information, where the available bandwidth information is congested according to the cell
  • the information, the UE channel quality information, and the real-time air interface rate are determined; or the wireless access network device determines the data transmission control information according to the sum of the third data transmission rate and the available bandwidth.
  • the radio access network device generates data transmission control information according to the wireless transmission capability information and the buffer space information, including:
  • the radio access network device determines the data packet transmission rate according to the following formula: Among them: k is the default value, V mac real-time air interface rate, ⁇ buffer is the cache space size change value, BufferSize is the total cache space size.
  • the radio access network device determines k according to the following method:
  • the radio access network device determines that the k is a value greater than one
  • the radio access network device determines that the k is 1;
  • the radio access network device determines that k is a value less than one.
  • the radio access network device provides the data transmission control information to the application server, including:
  • the wireless access network device encapsulates the data transmission control information in a data packet transmitted between the UE and the application server, and sends the data to the application server;
  • the wireless access network device sends the data transmission control information to the application server through a core network device;
  • the wireless access network device sends the data transmission control information to the application server through a separate interface with the application server;
  • the wireless access network device sends the data transmission control information to the application server by using the UE.
  • the radio access network device sends the data transmission control information to the application server through the core network device, including:
  • the core network device parses the user plane data packet to obtain the data transmission control information
  • the core network device encapsulates the obtained data transmission control information in a data payload and sends the data to the application server.
  • the user plane data packet includes a user plane general packet radio service tunneling protocol (GTP-U) message.
  • GTP-U user plane general packet radio service tunneling protocol
  • the radio access network device sends the data transmission control information to the application server by using the UE, including:
  • the UE encapsulates the data control information in a data packet exchanged with the application server, and sends the data to the application server.
  • the radio access network device provides the data transmission control information to the UE, including:
  • the radio access network device carries the data transmission control information by using air interface signaling sent to the UE;
  • the wireless access network device carries the data transmission control information by using a data packet exchanged with the UE.
  • the method further includes:
  • the UE sends a service optimization request to the radio access network device.
  • the method before the UE sends a service optimization request to the radio access network device also includes:
  • the UE determines that the preset service optimization trigger condition is met.
  • the service optimization triggering condition includes at least one of the following conditions: the UE initiates an initial connection, the UE detects a decrease in data transmission performance, the UE local service buffer is lower than a preset threshold, and the UE detects a service.
  • the quality indicator is lower than the preset quality indicator.
  • An embodiment of the present invention provides a method for transmitting information implemented by a radio access network, including:
  • the data transmission control information is provided to an application server and/or a UE.
  • the wireless transmission capability information includes at least one of the following information: available bandwidth information allocated to the UE, cell congestion information, channel quality information measured by the UE, and real-time air interface rate information; and the cache space information includes At least one of the following information: total cache size information, cache space remaining size information, cache space fill rate, cache space size change value.
  • the data transmission control information is generated according to the wireless transmission capability information and/or the buffer space information, including:
  • the UE When the UE initially establishes a link with the application server, determining that the ratio of the total cache space to the first preset fill time is the first data transmission rate;
  • the data transmission control information is generated according to the wireless transmission capability information and/or the buffer space information, including:
  • determining the remaining size of the cache space and the first The ratio of the two preset fill times is the third data transfer rate
  • the data transmission control information is generated according to the wireless transmission capability information and the buffer space information, including:
  • k is the default value
  • V mac real-time air interface rate ⁇ buffer is the cache space size change value
  • BufferSize is the total cache space size.
  • k is determined as follows:
  • the buffer space filling rate is not less than the first threshold and the buffer space filling rate is less than a second threshold, determining that k is 1;
  • the data transmission control information is provided to an application server, including:
  • the data transmission control information is encapsulated in a data packet transmitted between the UE and the application server, and sent to the application server;
  • the data transmission control information is sent to the application server by using a core network device, including:
  • the user plane data packet includes a GTP-U packet.
  • the data transmission control information is sent to the application server by using the UE, including:
  • the data transmission control information is sent to the UE by air interface signaling, and the data control information is encapsulated by the UE in a data packet exchanged with the application server, and sent to the application server.
  • the data transmission control information is provided to the UE, including:
  • the data transmission control information is used to instruct the application server to perform transmission control on data transmission between the peer and the peer according to the data transmission control information.
  • the method further includes:
  • the service optimization request is sent when the UE determines that the preset service optimization trigger condition is met.
  • An embodiment of the present invention provides an information transmission apparatus implemented on a radio access network side, including:
  • a generating unit configured to generate data transmission control information according to the wireless transmission capability information and/or the cache space information
  • a sending unit configured to provide the data transmission control information to the application server and/or the UE.
  • the wireless transmission capability information includes at least one of the following information: available bandwidth information allocated to the UE, cell congestion information, channel quality information measured by the UE, and real-time air interface rate information; and the cache space information includes At least one of the following information: total cache size information, cache space remaining size information, cache space fill rate, cache space size change value.
  • the generating unit includes:
  • a first determining subunit configured to determine, when the UE initially establishes a link with the application server, a ratio of a total size of the cache space and a first preset fill time to the first data transmission rate
  • a second determining subunit configured to determine a second data transmission rate according to the available bandwidth information, where the available bandwidth information is determined according to the cell congestion information and channel quality information measured by the UE;
  • a third determining subunit configured to determine the data transmission control information according to the first data transmission rate or the second data transmission rate; or determine according to a sum of the first data transmission rate and the second data transmission rate The data transmission control information.
  • the generating unit includes:
  • a fourth determining subunit configured to determine, in a data transmission process between the UE and the application server, a ratio of a remaining size of the buffer space to a second preset filling time as a third data transmission rate
  • a fifth determining subunit configured to determine the data transmission control information according to the third data transmission rate or available bandwidth information; or determine the data transmission control information according to a sum of the third data transmission rate and an available bandwidth;
  • the available bandwidth information is determined according to the cell congestion information, the UE channel quality information, and the real-time air interface rate.
  • the generating unit is configured to determine the data packet sending rate according to the following formula: Among them: k is the default value, V mac real-time air interface rate, ⁇ buffer is the cache space size change value, BufferSize is the total cache space size.
  • the information transmission device implemented on the radio access network side may further include:
  • a determining unit configured to determine k according to the following method: if the buffer space filling rate is less than a first threshold, determining that k is a value greater than 1; if the buffer space filling rate is not less than the first threshold and If the buffer space filling rate is less than the second threshold, determining that the k is 1; if the buffer space filling rate is not less than the second threshold, determining that k is a value less than 1.
  • the sending unit is configured to encapsulate the data transmission control information in a data packet transmitted between the UE and the application server, and send the data transmission control information to the application server; or pass the data transmission control information to the core network device. Sending to the application server; or sending the data transmission control information to the application server through a separate interface with the application server; or sending the data transmission control information to the application server by using the UE.
  • the sending unit is configured to send the data transmission control information to the core network device by using a user plane data packet, and the data transmission control obtained by the core network device by parsing the user plane data packet
  • the information is encapsulated in a data payload and sent to the application server.
  • the user plane data packet includes a GTP-U packet.
  • the sending unit is configured to send the data transmission control information to the UE by using air interface signaling, and the UE controls the data control information to be exchanged with the application server.
  • the packet is sent to the application server.
  • the sending unit is configured to carry the data transmission control information by using air interface signaling sent to the UE, or to carry the data transmission control information by using a data packet exchanged with the UE.
  • the data transmission control information is used to instruct the application server to perform transmission control on data transmission between the peer and the peer according to the data transmission control information.
  • the information transmission device implemented on the radio access network side may further include:
  • the receiving unit is configured to receive a service optimization request sent by the UE before the data transmission control information is provided to the application server, where the service optimization request is sent when the UE determines that the preset service optimization trigger condition is met of.
  • the embodiment of the invention provides a radio access network device, which comprises the information transmission device implemented by the radio access network side.
  • An embodiment of the present invention provides an information transmission system, including:
  • a wireless access network device configured to generate data transmission control information according to the wireless transmission capability information and/or the cache space information; and provide the data transmission control information to the application server and/or the UE;
  • the application server is configured to perform transmission control on data transmission between itself and the UE according to the data transmission control information
  • the UE is configured to perform transmission control on data transmission between itself and the application server according to the data transmission control information.
  • the wireless transmission capability information includes at least one of the following information: available bandwidth information allocated to the user equipment UE, cell congestion information, channel quality information measured by the UE, and real-time air interface rate information; and the cache space.
  • the information includes at least one of the following information: total cache size information, cache space remaining size information, cache space fill rate, and cache space size change value.
  • the radio access network device is configured to determine, when the UE initially establishes a link with the application server, that the ratio of the total size of the buffer space to the first preset padding time is the first data transmission rate; Determining, by the available bandwidth information, a second data transmission rate, where the available bandwidth information is determined according to the cell congestion information and channel quality information measured by the UE; determining, according to the first data transmission rate or the second data transmission rate Determining the data transmission control information; or determining the data transmission control information according to a sum of the first data transmission rate and the second data transmission rate.
  • the radio access network device is configured to determine, in a data transmission process between the UE and the application server, a ratio of a remaining size of the buffer space to a second preset filling time as a third data transmission rate; Three data transmission rates or available bandwidth information to determine the number Determining, according to the transmission control information, the data transmission control information according to the sum of the third data transmission rate and the available bandwidth; the available bandwidth information is determined according to the cell congestion information, the UE channel quality information, and the real-time air interface rate. of.
  • the radio access network device is configured to determine the data packet sending rate according to the following formula: Among them: k is the default value, V mac real-time air interface rate, ⁇ buffer is the cache space size change value, BufferSize is the total cache space size.
  • the radio access network device is configured to determine k according to the following method: if the cache space filling rate is less than a first threshold, determining that the k is a value greater than 1; if the cache space is filled If the rate is not less than the first threshold and the buffer space filling rate is less than the second threshold, determining that the k is 1; if the buffer space filling rate is not less than the second threshold, determining that k is less than 1. Value.
  • the radio access network device is configured to encapsulate the data transmission control information in a data packet transmitted between the UE and the application server, and send the data to the application server; or pass the data transmission control information. Sending, by the core network device, the application server to the application server; or sending the data transmission control information to the application server through a separate interface with the application server; or sending the data transmission control information to the application server.
  • the radio access network device is configured to send the data transmission control information to the core network device by using a user plane data packet
  • the core network device is configured to parse the user plane data packet to obtain the data transmission control information; and encapsulate the data transmission control information in a data payload and send the data to the application server.
  • the user plane data packet includes a GTP-U packet.
  • the radio access network device is configured to send the data transmission control information to the UE by using air interface signaling
  • the UE is configured to encapsulate the data control information in a data packet exchanged with the application server and send the data to the application server.
  • the radio access network device is configured to carry the data transmission control information by using air interface signaling sent to the UE, or to carry the data transmission control information by using a data packet exchanged with the UE.
  • the radio access network device is further configured to receive a service optimization request sent by the UE before providing the data transmission control information to the application server and/or the UE.
  • the service optimization request is sent when the UE determines that the preset service optimization trigger condition is met.
  • An embodiment of the present invention provides a method for transmitting information implemented by a UE or an application server, including:
  • the receiving data transmission control information sent by the wireless access network device includes:
  • the method after receiving the data transmission control information that is sent by the radio access network device by using the air interface signaling, the method further includes:
  • the data transmission control information is transmitted to the application server by using the interactive data packet.
  • the receiving data transmission control information sent by the wireless access network device includes:
  • the method further includes:
  • the method further includes:
  • the service optimization triggering condition includes at least one of the following conditions: the UE initiates an initial connection, the UE detects a decrease in data transmission performance, the UE local service buffer is lower than a preset threshold, and the UE detects a service.
  • the quality indicator is lower than the preset quality indicator.
  • the embodiment of the invention provides an information transmission device implemented by the UE side or the application server side, and includes:
  • a receiving unit configured to receive data transmission control information sent by the radio access network device, where the data transmission control information is generated by the radio access network device according to the wireless transmission capability information and/or the cache space information;
  • a transmission control unit configured to perform transmission control on data transmission between the peer and the opposite end according to the data transmission control information.
  • the receiving unit is configured to receive the data transmission control information that is sent by the radio access network device by using air interface signaling, or to receive the information that is sent by the radio access network device by using an interactive data packet. Data transfer control information.
  • the data transmission device implemented on the UE side or the application server side may further include:
  • a first sending unit configured to receive the wireless access network device at the receiving unit After the data transmission control information sent by the air interface signaling, the data transmission control information is sent to the application server by using the interactive data packet.
  • the receiving unit is configured to receive data transmission control information that is sent by the radio access network device by using an interactive data packet, or receive data transmission control information that is sent by the radio access network device by using the core network device. Or receiving data transmission control information sent by the wireless access network device using a separate interface.
  • the information transmission device implemented on the UE side or the application server side may further include:
  • the second sending unit is configured to send a service optimization request to the radio access network device before the receiving unit receives the data transmission control information sent by the radio access network device.
  • the information transmission device implemented on the UE side or the application server side may further include:
  • a determining unit configured to determine that the preset service optimization trigger condition is met before the second sending unit sends the service optimization request to the wireless access network device.
  • the service optimization triggering condition includes at least one of the following conditions: the UE initiates an initial connection, the UE detects a decrease in data transmission performance, the UE local service buffer is lower than a preset threshold, and the UE detects a service.
  • the quality indicator is lower than the preset quality indicator.
  • An embodiment of the present invention provides a UE, including the information transmission apparatus implemented by the UE side.
  • the embodiment of the invention provides an application server, which includes the information transmission device implemented by the application server side.
  • the embodiment of the present invention provides a computer readable storage medium, where a computer program is stored, and when the computer program is executed by a processor, the steps of any method of the wireless network access device side are implemented, or any method of the UE side is implemented. Step, or implement the steps of any method on the application server side.
  • the readable storage medium, the wireless access network side generates data transmission control information according to the wireless transmission capability information and the cache space information, and provides the data transmission control information to the application server and/or the UE, so that the application server and/or the UE can be wireless according to the wireless network side. Transmission conditions and buffer space conditions control the data transmitted by itself, thereby improving the utilization and throughput of wireless resources.
  • an embodiment of the present invention provides an information transmission method, including:
  • the wireless access network device sends the wireless network environment information to the UE;
  • the application server performs transmission control on data transmission between itself and the UE according to the received data transmission control information.
  • the method before the wireless access network device sends the wireless network environment information to the user equipment UE, the method further includes:
  • the UE sends a service optimization request to the radio access network device.
  • the UE sends a service optimization request to the radio access network device when the preset trigger condition is met.
  • the triggering condition includes at least one of the following conditions: the UE initiates an initial connection, the UE detects a decrease in data transmission performance, the UE local service buffer is lower than a preset threshold, and the UE detects The quality of service indicators are lower than the preset quality indicators.
  • the wireless access network device sends the wireless network environment information to the user equipment UE, including:
  • the wireless access network device uses the wireless network environment information sent by the data packet to the UE.
  • the data packet includes a user plane data packet.
  • the user plane data packet includes a media access control (MAC) data packet or a radio link control (RLC) data packet.
  • MAC media access control
  • RLC radio link control
  • the air interface signaling includes layer 1 signaling, layer 2 signaling, or layer 3 signaling.
  • the layer 2 signaling includes MAC Control Unit (CE) signaling
  • the layer 3 signaling includes Radio Resource Control (RRC) signaling.
  • CE MAC Control Unit
  • RRC Radio Resource Control
  • the method before the wireless access network device sends the wireless network environment information to the UE, the method further includes:
  • the wireless access network device sends the wireless network environment information to the UE, including:
  • the wireless access network device sends, to the UE, wireless network environment information determined according to the service information.
  • the method further includes:
  • the UE performs transmission control on data transmission between itself and the application server according to the wireless network environment.
  • An embodiment of the present invention further provides an information transmission system, including a UE, a radio access network device, and an application server, where:
  • the wireless access network device is configured to send wireless network environment information to the UE;
  • the UE is configured to determine data transmission control information according to the wireless network environment information, and send the determined data transmission control information to an application server;
  • the application server is configured to perform transmission control on data transmission between itself and the UE according to the received data transmission control information.
  • the UE is further configured to send a service optimization request to the radio access network device.
  • the UE is configured to send a service optimization request to the radio access network device when the preset trigger condition is met.
  • the triggering condition includes at least one of the following conditions: the UE initiates an initial connection, the UE detects a decrease in data transmission performance, the UE local service buffer is lower than a preset threshold, and the UE detects The quality of service indicators are lower than the preset quality indicators.
  • the radio access network device is configured to send the radio network environment information to the UE by using air interface signaling, or to use the radio network environment information sent by the data packet to the UE.
  • the data packet includes a user plane data packet.
  • the user plane data packet includes a MAC data packet or an RLC data packet.
  • the air interface signaling includes layer 1 signaling, layer 2 signaling, or layer 3 signaling.
  • the layer 2 signaling includes MAC CE signaling
  • the layer 3 signaling includes RRC signaling
  • the UE is further configured to: before the wireless access network device sends the wireless network environment information, send the service information of the currently used service to the wireless access network device;
  • the wireless access network device determines the wireless network environment information according to the service information; and the UE sends the wireless network environment information determined according to the service information.
  • the UE is further configured to perform transmission control on data transmission between itself and the application server according to the wireless network environment.
  • the embodiment of the invention further provides an information transmission method implemented by the UE side, including:
  • the determined data transmission control information is sent to the application server.
  • the method before receiving the wireless network environment information sent by the wireless access network device, the method further includes:
  • the method before the sending a service optimization request to the radio access network device, the method further includes:
  • the triggering condition includes at least one of the following conditions: initiating an initial connection, detecting that the data transmission performance is degraded, the local service buffer is lower than a preset threshold, and detecting that the service quality indicator is lower than the preset quality indicator.
  • receiving the wireless network environment information sent by the wireless access network device including:
  • the data packet includes a user plane data packet.
  • the user plane data packet includes a MAC data packet or an RLC data packet.
  • the air interface signaling includes layer 1 signaling, layer 2 signaling, or layer 3 signaling.
  • the layer 2 signaling includes MAC CE signaling
  • the layer 3 signaling includes radio resource control RRC signaling.
  • the method before receiving the wireless network environment information sent by the wireless access network device, the method further includes:
  • Receiving wireless network environment information sent by the wireless access network device including:
  • An embodiment of the present invention further provides an information transmission apparatus implemented by a UE, including:
  • a receiving unit configured to receive wireless network environment information sent by the wireless access network device
  • a first determining unit configured to determine data transmission control information according to the received wireless network environment information
  • the first sending unit is configured to send the determined data transmission control information to the application server.
  • the device further includes:
  • the second sending unit is configured to send a service optimization request to the radio access network device before the receiving unit receives the wireless network environment information sent by the radio access network device.
  • the device further includes:
  • the second determining unit is configured to determine that the preset trigger condition is met before the second sending unit sends the service optimization request to the wireless access network device.
  • the triggering condition includes at least one of the following conditions: initiating an initial connection, detecting that the data transmission performance is degraded, the local service buffer is lower than a preset threshold, and detecting that the service quality indicator is lower than the preset quality indicator.
  • the receiving unit is configured to receive wireless network environment information that is sent by the wireless network device using air interface signaling, or receive wireless network environment information that is sent by the wireless network device using the data packet.
  • the data packet includes a user plane data packet.
  • the user plane data packet includes a MAC data packet or an RLC data packet.
  • the air interface signaling includes layer 1 signaling, layer 2 signaling, or layer 3 signaling.
  • the layer 2 signaling includes MAC CE signaling
  • the layer 3 signaling includes RRC signaling
  • the apparatus further includes a third sending unit, wherein:
  • the third sending unit is configured to send, to the radio access network device, service information of a currently ongoing service
  • the receiving unit is configured to receive, according to the service, sent by a radio access network device The wireless network environment information determined by the information.
  • the embodiment of the present invention further provides a UE, including the information transmission apparatus implemented by the UE side.
  • An embodiment of the present invention further provides an information transmission method implemented by a device on a radio access network device, including:
  • the method before the sending the wireless network environment information to the UE, the method further includes:
  • the wireless network environment information is sent to the UE, including:
  • the wireless network environment information is transmitted using a data packet transmitted between the UE.
  • the data packet includes a user plane data packet.
  • the user plane data packet includes a MAC data packet or an RLC data packet.
  • the air interface signaling includes layer 1 signaling, layer 2 signaling, or layer 3 signaling.
  • the layer 2 signaling includes MAC CE signaling
  • the layer 3 signaling includes RRC signaling
  • the wireless network environment information is used to instruct the UE to determine data transmission control information according to the wireless network environment information, and send the data to the application server.
  • the method before the sending the wireless network environment information to the UE, the method further includes:
  • the embodiment of the invention further provides an information transmission device implemented on the device side of the wireless access network, comprising:
  • the sending unit is configured to send the wireless network environment information to the UE.
  • the device further includes:
  • a first receiving unit configured to send, by the sending unit, wireless network environment information to the UE Before receiving the service optimization request sent by the UE.
  • the sending unit is configured to send the wireless network environment information to the UE by using air interface signaling, or send the wireless network environment information by using a data packet transmitted between the UE.
  • the data packet includes a user plane data packet.
  • the user plane data packet includes a MAC data packet or an RLC data packet.
  • the air interface signaling includes layer 1 signaling, layer 2 signaling, or layer 3 signaling.
  • the layer 2 signaling includes MAC CE signaling
  • the layer 3 signaling includes RRC signaling
  • the wireless network environment information is used to instruct the UE to determine data transmission control information according to the wireless network environment information, and send the data to the application server.
  • the device further includes:
  • a second receiving unit configured to receive, before the sending unit sends the wireless network environment information to the UE, the service information that is sent by the UE and is currently using the service;
  • a determining unit configured to determine, according to the service information received by the receiving unit, the wireless network environment information that is sent to the UE.
  • An embodiment of the present invention provides a radio access network device, including the information transmission device implemented by the radio access network device side.
  • An embodiment of the present invention provides a computer readable storage medium, where a computer program is stored, and when the computer program is executed by a processor, the steps of any method on the wireless network access device side are implemented, or any of the UE side is implemented. The steps of the method.
  • the wireless network access device sends the wireless network environment information to the UE, so that the UE can determine the self and the application according to the real-time wireless network environment.
  • the data transmission control information between the servers is sent to the application server, thereby realizing the wireless environment information that changes in real time.
  • the application server is configured to enable the application server to control the data transmitted between the UE and the UE according to the received data transmission control information, thereby achieving data transmission and matching with the real-time wireless network environment, improving data transmission efficiency and network resources. Utilization rate.
  • FIG. 1 is a schematic flowchart of an implementation process of an information transmission method according to an embodiment of the present invention
  • FIG. 2 is a schematic flowchart of an implementation process of a data transmission optimization method in an initial link establishment phase according to an embodiment of the present invention
  • FIG. 3 is a schematic flowchart of an implementation process of a data transmission optimization method in a data transmission phase according to an embodiment of the present invention
  • 4a is a schematic flowchart of an implementation process of a data transmission optimization method in a TCP slow start phase according to an embodiment of the present invention
  • 4b is a schematic flowchart of an implementation process of implementing a data transmission optimization method by a UE in a TCP slow start phase during a slow start phase of the present invention
  • 5a is a schematic flowchart of an implementation process of a data transmission optimization method in a congestion avoidance phase according to an embodiment of the present invention
  • FIG. 5b is a schematic flowchart of an implementation process of implementing a data transmission optimization method by a radio access network device triggered by a UE in a data transmission phase according to an embodiment of the present disclosure
  • 6a is a schematic diagram of a TCP rate dynamic adjustment process including rate fluctuations according to an embodiment of the present invention
  • 6b is a schematic diagram of an interaction process of implementing information transmission methods by devices according to an embodiment of the present invention.
  • 6c is a schematic flowchart of a data transmission method implemented by a UE or an application server according to an embodiment of the present invention
  • FIG. 7 is a schematic structural diagram of a first information transmission apparatus according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of an information transmission system according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of a second information transmission apparatus according to an embodiment of the present invention.
  • 10a is a schematic flowchart of an implementation process of an information transmission method implemented by a radio access device side according to an embodiment of the present invention
  • 10b is a schematic flowchart of an implementation process of transmitting, by an RRC signaling, a wireless network environment information by a UE and a wireless access device according to an embodiment of the present invention
  • 10c is a schematic flowchart of an implementation process of transmitting wireless network environment information by a UE and a wireless access device according to an embodiment of the present invention
  • FIG. 10 is a schematic flowchart of another implementation manner of transmitting data of a wireless network environment by a UE and a wireless access device according to an embodiment of the present disclosure
  • 11a is a schematic structural diagram of a first MAC header of the prior art
  • FIG. 11b is a schematic diagram of a structure of a second type of MAC packet header
  • FIG. 12 is a schematic flowchart of an implementation process of an information transmission method implemented by a UE side according to an embodiment of the present disclosure
  • 12b is a schematic flowchart of interaction between a UE, a radio access network device, and an application server according to an embodiment of the present invention
  • FIG. 13 is a schematic structural diagram of an information transmission apparatus implemented on a radio access network device side according to an embodiment of the present invention.
  • FIG. 14 is a schematic structural diagram of an information transmission apparatus implemented on a UE side according to an embodiment of the present invention.
  • FIG. 15 is a schematic structural diagram of an information transmission system according to an embodiment of the present invention.
  • the embodiment of the invention provides an information transmission optimization method, device, system and device.
  • the TCP server uses various algorithms to calculate the time taken between the transmission of a packet and the receipt of its acknowledgment command, and then uses this information to estimate the maximum transmission rate that the connection can support, and accordingly Adjust the sending rate of packets sent to the terminal.
  • the inventor has found that the traditional TCP congestion control scheme is proposed for the application scenario where the terminal location is fixed and the transmission network environment is relatively stable, which has a great advantage for improving the performance of the wired network, and is applied to the wireless communication.
  • the existing data transmission method matches the real-time wireless network environment state, thereby reducing the The utilization efficiency of network resources and the throughput of wireless communication systems. Therefore, how to enable the application server to perform congestion control according to the wireless network environment condition in which the terminal currently accesses the network has become one of the technical problems to be solved in the prior art.
  • an embodiment of the present invention provides an information transmission method for determining data transmission control information based on a wireless network environment; the UE or the application server controls a data packet that is sent to the peer end based on the data transmission control information.
  • an implementation manner is: the radio access network device currently accessed by the UE generates data transmission control information according to the current wireless transmission capability information and/or the cache space information, and provides the data transmission control information to the application server, so that the application server can be Received data transmission control information
  • the data packet sent to the UE is controlled; and/or the wireless access network device generates data transmission control information according to the current wireless transmission capability information and/or the buffer space information, and provides the data to the UE, so that the UE can be based on the received data.
  • the transmission control information controls the packets that are sent to the application server itself.
  • Another implementation manner is: the radio access network device currently accessed by the UE sends the radio network environment information to the UE, and the UE determines corresponding data transmission control information according to the received radio network environment information, and sends the information to the application server, so that The application server can control the data packets that are sent to the UE according to the received data transmission control information.
  • the first technical problem to be solved is how the wireless access network device is an application.
  • the server provides data transmission control information for the user to perform data transmission control, so that the application server can adjust the data transmission between itself and the UE according to the received data transmission control information, so that the data transmission can follow the wireless environment information.
  • the changes are changed in real time to improve the utilization efficiency of wireless resources and the throughput of wireless communication systems.
  • an embodiment of the present invention provides an information transmission method, as shown in FIG. 1, which may include the following steps:
  • the wireless transmission capability information may include at least one of the following information: available bandwidth information allocated to the UE, cell congestion information, channel quality information measured by the UE, and real-time air interface rate information;
  • the cache space information includes at least one of the following information: total cache space size information, cache space remaining size information, cache space padding Rate, cache space size change value (for example, it can be the difference between the cache size of two adjacent time slots) and so on.
  • the data transmission control information generated by the radio access network device may be any one or more of the following information: data transmission window adjustment indication information and data transmission rate.
  • the data transmission control information is used to instruct the application server and/or UE to perform transmission control on data transmission between the peer and the peer according to the data transmission control information.
  • the application server performs transmission control on data transmission between itself and the UE according to the received data transmission control information, and the UE performs transmission control on data transmission between itself and the application server according to the received data transmission control information.
  • step S11 can have the following two implementation manners:
  • the radio access network device generates data transmission control information during an initial link establishment process between the UE and the application server.
  • step S11 may include the following steps:
  • the available bandwidth information may be determined according to the cell congestion information and the channel quality information measured by the UE, and the second data transmission rate is determined according to the determined available bandwidth information.
  • the radio access network device generates data transmission control information during data transmission between the UE and the application server.
  • step S11 may include the following steps:
  • the available bandwidth information involved in step S32 may be determined according to cell congestion information, UE channel quality information, and real-time air interface rate.
  • the application server is a TCP server
  • the initial link establishment phase may correspond to In the TCP slow start phase
  • the data transmission phase may correspond to the congestion avoidance phase, which is described separately below.
  • the schematic diagram of the implementation process of the data transmission optimization method in the TCP slow start phase may include the following steps:
  • the UE establishes a link with the TCP server.
  • the UE and the TCP server perform a three-way handshake to establish a TCP link.
  • a wireless access device (which may be referred to as a RAN) identifies a TCP initial connection.
  • the RAN identifies the TCP initial link.
  • the radio access network device can be identified by a method such as deep packet inspection (DPI), which is not limited in the embodiment of the present invention.
  • DPI deep packet inspection
  • the RAN generates a TCP initial transmission window.
  • the RAN may obtain the rate V1 according to the ratio of the total size of the buffer space on the radio access network to the expected time of filling (which may be set according to actual needs), and obtain available bandwidth information according to the cell congestion information and the channel quality information measured by the UE. And determining the rate V2 according to the available bandwidth.
  • the number of air interface resources (RB, Radio Block) of the cell may be obtained according to the channel quality of the UE (such as a channel quality indicator (CQI, Channel).
  • the quality indicator can calculate the modulation coding scheme (MCS) used by the UE to transmit on the RB resource, thereby estimating the initial rate of the UE, and determining the initial TCP transmission window according to (V1+V2).
  • MCS modulation coding scheme
  • the RAN sends the generated initial TCP sending window to the TCP server and the UE, respectively.
  • the TCP server and the UE send the data packet in an initial transmission window.
  • the TCP server can send the data packet according to the initial sending window, and fill a certain proportion of the cache space and utilize a certain proportion of the wireless schedulable resources at one time to avoid waste of wireless resources in the slow start phase.
  • a schematic diagram of an implementation process of the data transmission optimization method may include the following steps:
  • the RAN generates TCP window adjustment indication information.
  • the RAN In this step, during data transmission between the UE and the TCP server, the RAN generates TCP transmission window indication information according to the real-time cache change and the available bandwidth on the RAN side.
  • the available bandwidth may be determined according to cell congestion information, UE channel quality information, and real-time air interface rate.
  • the RAN may obtain V3 according to the ratio of the remaining space of the wireless side buffer (the portion of the buffer that is not occupied by the data) and the expected time of filling (which may be set according to actual needs), and determine the TCP transmission window adjustment according to the sum of V3 and the available bandwidth. Instructions.
  • the TCP sending window indication information may be a relative value (the value is an adjustment value of the sending window with respect to the last time, according to which the application server and the UE may determine the TCP sending window of the current time relative to the TCP of the previous moment.
  • the change value of the send window can also be an absolute value (ie, the application server and the UE adjusted TCP).
  • the TCP transmission window indication information is a relative value: a possible form of the TCP transmission window indication information is to increase the available bandwidth indication (such as +1), that is, increase the value of the available bandwidth; another possible form is to reduce the available bandwidth. An indication (such as -1) that reduces the value of the available bandwidth. Or, Yet another possible form is to increase (such as +1), or to reduce the TCP transmission window (such as -1), etc., which are not enumerated in the embodiments of the present invention.
  • the RAN sends TCP transmission window adjustment indication information to the UE and the TCP server, respectively.
  • the UE and the TCP server perform data packet transmission according to the adjusted TCP transmission window at the next moment.
  • the TCP server can perform data packet transmission according to the TCP window adjustment indication information. Specifically, according to different combinations of V3 and available bandwidth, there may be multiple implementation manners.
  • the available bandwidth fluctuates greatly: when the available bandwidth is rapidly enhanced (for example, when the available bandwidth is increased for several consecutive times, and the rate of change is greater than or equal to the preset threshold) or the remaining buffer space is greater than the preset threshold, then
  • the TCP server may be instructed to increase the TCP sending window or the data packet sending rate; when the available bandwidth is lower than a certain threshold or the remaining buffer space is not greater than a preset threshold, the TCP server may be instructed to reduce the TCP sending window or the data packet sending rate, etc. Wait. If the available bandwidth is stable for a period of time (that is, the bandwidth can fluctuate within the preset range), the TCP server can be instructed to increase the TCP transmission window or the packet transmission rate, thereby improving the cache utilization rate.
  • the TCP server After the usage reaches the preset threshold, the TCP server indicates that the TCP packet has been matched with the available bandwidth or the TCP transmission window is used for packet transmission. This avoids the waste of wireless resources and can achieve greater system throughput.
  • the rate is shown in Figure 6a.
  • the cache space size change value that is, the difference between the cache time sizes of two adjacent moments
  • the cache absolute value is greater than 0 it is determined that the TCP packet transmission rate matches the available bandwidth.
  • the data packet transmission rate of the TCP server or the TCP transmission may be dynamically indicated according to the buffer space filling rate and the buffer space size change value. window.
  • step S11 may further determine a data packet sending rate on the application server side according to the following formula: Among them: k is the default value, V mac real-time air interface rate, ⁇ buffer is the cache space size change value, BufferSize is the total cache space size.
  • k is an optimization factor.
  • k is determined according to the following method: if the buffer space filling rate is less than the first threshold, determining that k is a value greater than 1; if the buffer space filling rate is not less than And determining, by the first threshold, that the buffer space filling rate is less than the second threshold, determining that k is 1; if the buffer space filling rate is not less than the second threshold, determining that k is a value less than 1.
  • the cache space filling rate is less than or equal to 50%, since the cache space filling rate is low, the cache needs to be filled to a reasonable value faster, and it can be determined that k is a value greater than 1, for example, determining k is 1.3, and if the cache space fill rate is greater than 50% and less than 80%, then the cache space fill rate is within a reasonable range, then it can be determined that k is 1, and if the cache space fill rate is greater than or equal to 80%, then the cache space has For spillover risk, it can be determined that k is a value less than 1, for example, it is determined that k is 0.8.
  • the real-time air interface rate can also be obtained according to the TCP packet sending rate and the buffer space size change value.
  • the real-time air interface rate can be obtained by subtracting the previous time cache space size change value from the previous time TCP transmission rate. .
  • the radio access network device may provide the data transmission control information to the application server in any of the following manners:
  • the data transmission control information is encapsulated in a data packet transmitted between the UE and the application server, and sent to the application server.
  • the radio access network device can directly extend the Option field in the TCP ACK packet.
  • the data transmission control information is sent to the application server through a core network device.
  • the wireless access network device may pass the data transmission control information to the user plane.
  • the data packet is sent to the core network device, and the data transmission control information obtained by the core network device by parsing the user plane data packet is encapsulated in a data payload and sent to the application server.
  • the user plane data packet includes a GTP-U packet.
  • the radio access network device may encapsulate the data transmission control information in the extension header of the GTP-U packet.
  • the core network device After obtaining the data transmission control information, the core network device encapsulates it in the Option field of the TCP ACK packet and transmits it to the application server.
  • the data transmission control information is sent to the application server through a separate interface with the application server.
  • the wireless access network device can establish an independent transmission interface with the application server.
  • the data transmission control information is sent to the application server by using a UE.
  • the radio access network device may send the data transmission control information to the UE by using air interface signaling, where the UE encapsulates the data control information into a data packet that interacts with the application server. Sent to the application server. For example, the UE may directly set a new receiving window in the TCP ACK to instruct the TCP server to adjust the sending window.
  • the wireless access network device active wireless transmission capability information and/or the cache space information to generate data transmission control information and sends the data transmission control information to the UE and/or the application server.
  • the wireless access network device may also be triggered by the UE.
  • Step S11 is performed.
  • the radio access network device may further perform step S11 after receiving the service optimization request sent by the UE.
  • the UE may send a service optimization request to the radio access network device when detecting that the preset trigger condition is met, where the trigger condition may include at least one of the following conditions:
  • the UE may send a service optimization request to the radio access network device during the TCP slow start phase, that is, the UE is in the UE.
  • the service optimization request is sent to the radio access network device during the TCP three-way handshake process; if the application server is the video server, the UE may send a service optimization request to the radio access network device during the initial connection with the video server.
  • the UE detects a decrease in data transmission performance. For example, the UE detects that the number of repeated ACKs (acknowledgement packets) is received exceeds a preset threshold.
  • the local service buffer of the UE is lower than a preset threshold. For example, the UE detects that the video being played locally is paused.
  • the UE detects that the service quality indicator is lower than the preset quality indicator. For example, the UE detects that the quality parameter of the video quality being played by the local area is lower than the preset quality parameter value, or does not satisfy the preset quality parameter value, and the like. , the embodiments of the present invention are not listed one by one.
  • FIG. 4b a schematic diagram of an implementation process of implementing a data transmission optimization method by a radio access network device under the trigger of the UE, which may include the following steps:
  • the UE establishes a link with the TCP server.
  • the UE and the TCP server perform a three-way handshake to establish a TCP link.
  • the UE sends a service optimization request to the radio access network device.
  • the UE since establishing a connection with the TCP server is one of preset trigger conditions, the UE will send a service optimization request to the radio access network device during the process of establishing a connection between the UE and the TCP server.
  • the RAN generates a TCP initial transmission window.
  • the RAN sends the generated initial TCP sending window to the TCP server and the UE, respectively.
  • the TCP server and the UE send the data packet in an initial transmission window.
  • step S423 to step S42 refer to step S43 to step S45, and details are not described herein again.
  • a schematic diagram of an implementation process of implementing a data transmission optimization method by a radio access network device triggered by a UE may include the following steps:
  • the UE determines whether the preset trigger condition is met.
  • the UE may determine the size according to the local service cache, or according to the video playback quality, or according to the number of received ACKs. If it is determined that the preset trigger condition is satisfied, step S522 is performed.
  • the UE sends a service optimization request to the radio access network device.
  • the RAN generates TCP window adjustment indication information.
  • the RAN sends TCP transmission window adjustment indication information to the UE and the TCP server, respectively.
  • the UE and the TCP server perform data packet transmission according to the adjusted TCP transmission window at the next moment.
  • step S523 to step S525 refer to step S51 to step S55, and details are not described herein again.
  • the radio access network device involved in the embodiment of the present invention may be a base station in a wireless communication system.
  • the following describes the specific implementation process of the information transmission method provided by the embodiment of the present invention, in combination with the radio access network device, the core network device, the application server, and the interaction process between the UEs. As shown in 6b, the following steps can be included:
  • the wireless access network device generates data transmission control information according to the wireless transmission capability information and/or the buffer space information.
  • the radio access network device may further perform step S61 after receiving the service optimization request sent by the UE.
  • the radio access network device provides the data transmission control information to an application server and/or a UE.
  • the application server and/or the UE performs transmission control on data transmission between itself and the opposite end according to the received data transmission control information.
  • the application server performs transmission control on data transmission between itself and the UE according to the received data transmission control information, and the UE performs transmission control on data transmission between itself and the application server according to the received data transmission control information.
  • the wireless transmission capability information includes at least one of: available bandwidth information allocated for the UE, cell congestion information, UE measured channel quality information, and real-time air interface rate information; and the cache space The information includes at least one of the following information: total cache size information, cache space remaining size information, cache space fill rate, and cache space size change value.
  • step S61 can be implemented in any of the following ways:
  • the first embodiment is applied to the UE and the initial establishment of the link with the application server. In this implementation manner, the following steps may be included:
  • Step a When the UE initially establishes a link with the application server, the wireless access network device determines that the ratio of the total buffer space to the first preset padding time is the first data transmission rate.
  • Step b The radio access network device determines a second data transmission rate according to the available bandwidth information.
  • the available bandwidth information involved in this step is determined according to the cell congestion information and the channel quality information measured by the UE.
  • Step c The radio access network device determines the data transmission control information according to the first data transmission rate or the second data transmission rate; or the radio access network device according to the first data transmission rate and location The sum of the second data transmission rates determines the data transmission control information.
  • the second embodiment is applied to the UE and the initial establishment of the link with the application server. In this implementation manner, the following steps may be included:
  • Step 1 In the process of data transmission between the UE and the application server, the wireless access network device determines that the ratio of the remaining size of the buffer space to the second preset filling time is the third data transmission speed. rate.
  • Step 2 The radio access network device determines the data transmission control information according to the third data transmission rate or available bandwidth information; or the radio access network device is configured according to the third data transmission rate and available bandwidth. And determining the data transmission control information.
  • the available bandwidth information is determined according to the cell congestion information, the UE channel quality information, and the real-time air interface rate.
  • the radio access network device determines the data packet transmission rate according to the following formula: Among them: k is the default value, V mac real-time air interface rate, ⁇ buffer is the cache space size change value, BufferSize is the total cache space size.
  • the wireless access network device can determine k as follows:
  • the radio access network device determines that the k is a value greater than one
  • the radio access network device determines that the k is 1;
  • the radio access network device determines that k is a value less than one.
  • the radio access network device may provide the data transmission control information to the application server by using any of the following methods:
  • the radio access network device encapsulates the data transmission control information in a data packet transmitted between the UE and the application server, and sends the data to the application server.
  • the radio access network device sends the data transmission control information to the application server through a core network device.
  • the radio access network device sends the data transmission control information to the application server through a separate interface with the application server.
  • the radio access network device passes the data transmission control information to the UE Sent to the application server.
  • the wireless access network device sends the data transmission control information to the application server through the core network device, and can be implemented according to the following process:
  • Step 1 The radio access network device sends the data transmission control information to the core network device by using a user plane data packet.
  • the user plane data packet includes a GTP-U message.
  • Step 2 The core network device parses the user plane data packet to obtain the data transmission control information.
  • Step 3 The core network device encapsulates the obtained data transmission control information in a data payload and sends the data to the application server.
  • the radio access network device sends the data transmission control information to the application server by using the UE, and may be implemented according to the following process: the radio access network device sends the data transmission control information to the device through air interface signaling. Said UE; the UE encapsulates the data control information in a data packet exchanged with the application server and sends the data to the application server.
  • the radio access network device may provide the data transmission control information to the UE according to any one of the following manners: the radio access network device carries the data transmission control information by using air interface signaling sent to the UE; or The wireless access network device carries the data transmission control information by using a data packet exchanged between the UE and the application server.
  • the embodiment of the present invention further provides an information transmission method implemented by a UE or an application server, as shown in FIG. 6c, which may include the following steps:
  • the data transmission control information is generated by the radio access network device according to the wireless transmission capability information and/or the cache space information.
  • S622. Perform transmission control on data transmission between the peer and the peer according to the data transmission control information.
  • step S621 and step S622 may be implemented by the UE, or may be implemented by the application server. If implemented by the UE, the peer involved in step S622 may be an application server, and if implemented by the application server, step S622 The peer involved may be a UE.
  • step S621 may be implemented in the following manner: receiving the data transmission control information that the radio access network device transmits by using air interface signaling; or receiving the The wireless access network device utilizes the data transmission control information transmitted by the interactive data packet. That is, the radio access network device carries the data transmission control information in the air interface signaling and sends the data to the UE, or the radio access network device encapsulates the data transmission control information in a data packet exchanged with the UE, and sends the data to the UE.
  • the method is not limited, and the embodiment of the present invention does not limit this.
  • the UE may further send the data transmission control information to the application server by using the interactive data packet.
  • the UE may directly encapsulate the data transmission control information in a data packet exchanged with the application server and send it to the application server.
  • the method may further include the following steps: the UE sends a service optimization request to the radio access network device.
  • the method may further include the step of: determining that the preset service optimization trigger condition is met.
  • the service optimization triggering condition includes at least one of the following conditions: the UE initiates an initial connection, the UE detects that the data transmission performance decreases, the UE local service buffer is lower than a preset threshold, and the UE detects The quality of service indicators are lower than the preset quality indicators.
  • step S621 may be implemented in the following manner: receiving data transmission control information sent by the wireless access network device by using an interactive data packet; or receiving the The data transmission control information sent by the wireless access network device through the core network device; or the use of the wireless access network device Data transmission control information sent by the independent interface; or receiving data transmission control information sent by the radio access network device through the UE.
  • the wireless access network device may encapsulate the data transmission control information by using a user plane data packet, for example, the wireless access network device may utilize the GTP- The U data packet encapsulates the data transmission control information. Specifically, the wireless access network device may encapsulate the data transmission control information in an extension header of the GTP-U data packet. After obtaining the data transmission control information from the user plane data packet, the core network device encapsulates the obtained data transmission control information in a data payload and sends the data to the application server.
  • the wireless access network device assists the application server and the UE to perform data transmission optimization, and the wireless transmission capability information and the cache space information provided by the wireless side are used to instruct the application server to dynamically adjust the transmission window or data.
  • the transmission rate enables the data transmission rate between the application server and the UE to match the real-time wireless environment, reduces the waste of wireless resources, improves the utilization efficiency of the wireless resources, and maintains the throughput of the system at a higher rate.
  • the high level largely avoids TCP timeouts and can significantly reduce the occurrence of TCP retransmissions.
  • an embodiment of the present invention further provides an information transmission device, a wireless access network device, and a system.
  • the device and system and the device solve the problem are similar to the data transmission optimization method.
  • the implementation of the method refer to the implementation of the method, and the repetition will not be repeated.
  • FIG. 7 is a schematic structural diagram of an information transmission apparatus according to an embodiment of the present invention, which may include:
  • the generating unit 71 is configured to generate data transmission control information according to the wireless transmission capability information and/or the buffer space information;
  • the data transmission control information is used to instruct the application server to perform transmission control on data transmission between the peer and the peer according to the data transmission control information.
  • the sending unit 72 is configured to provide the received data transmission control information to the application server and/or the UE.
  • the wireless transmission capability information includes at least one of the following: the wireless transmission capability information includes at least one of the following information: available bandwidth information allocated for the user equipment UE, cell congestion information, channel quality information measured by the UE, and real-time air interface. Rate information and the like; and the cache space information includes at least one of the following information: total cache space size information, cache space remaining size information, cache space fill rate, cache space size change value, and the like.
  • the generating unit 71 includes:
  • a first determining subunit configured to determine, when the UE initially establishes a link with the application server, a ratio of a total size of the cache space and a first preset fill time to the first data transmission rate
  • a second determining subunit configured to determine a second data transmission rate according to the available bandwidth information, where the available bandwidth information is determined according to the cell congestion information and channel quality information measured by the UE;
  • a third determining subunit configured to determine the data transmission control information according to the first data transmission rate or the second data transmission rate; or determine according to a sum of the first data transmission rate and the second data transmission rate The data transmission control information.
  • the generating unit 71 includes:
  • a fourth determining subunit configured to determine, in a data transmission process between the UE and the application server, a ratio of a remaining size of the buffer space to a second preset filling time as a third data transmission rate
  • a fifth determining subunit configured to determine the data transmission control information according to the third data transmission rate or available bandwidth information; or determine the data transmission control information according to a sum of the third data transmission rate and an available bandwidth.
  • the generating unit 71 is specifically configured to determine the data packet sending rate according to the following formula: Where: k is the default value, V mac real-time air interface rate, ⁇ buffer is the buffer space size change value, and BufferSize is the cache space fill rate.
  • the data transmission apparatus provided by the embodiment of the present invention may further include:
  • a determining unit configured to determine k according to the following method: if the buffer space filling rate is less than a first threshold, determining that k is a value greater than 1; if the buffer space filling rate is not less than the first threshold and If the buffer space filling rate is less than the second threshold, determining that the k is 1; if the buffer space filling rate is not less than the second threshold, determining that k is a value less than 1.
  • the sending unit 72 is specifically configured to encapsulate the data transmission control information in a data packet transmitted between the UE and the application server, and send the data to the application server; or transmit the data transmission control information. Sending to the application server by using the core network device; or sending the data transmission control information to the application server through a separate interface with the application server; or sending the data transmission control information to the office through the UE The application server.
  • the sending unit 72 is specifically configured to send the data transmission control information to the core network device by using a user plane data packet, and the data transmission control obtained by the core network device by parsing the user plane data packet
  • the information is encapsulated in a data payload and sent to the application server.
  • the user plane data packet includes a GTP-U message.
  • the sending unit 72 is specifically configured to send the data transmission control information to the UE by using air interface signaling, where the UE encapsulates the data control information with the application server.
  • the data packet of the interaction is sent to the application server.
  • the sending unit 72 is specifically configured to carry the data transmission control information by using air interface signaling sent to the UE, or carrying the data transmission by using a data packet exchanged between the UE and the application server. Control information.
  • the data transmission device implemented by the radio access network side may further include:
  • the receiving unit is configured to receive a service optimization request sent by the UE before providing the data transmission control information to the application server and/or the UE.
  • the service optimization request is that the UE determines that the preset service optimization trigger bar is satisfied. Sent when sent.
  • the service optimization triggering condition includes at least one of the following conditions: the UE initiates an initial connection, the UE detects a decrease in data transmission performance, the UE local service buffer is lower than a preset threshold, and the UE detects a service.
  • the quality indicator is lower than the preset quality indicator.
  • the above parts are respectively divided into modules (or units) according to functions.
  • the functions of the various modules (or units) may be implemented in one or more software or hardware in the practice of the invention.
  • the information transmission apparatus provided by the embodiment of the present invention may be configured in a wireless access network device, such as a base station.
  • FIG. 8 is a schematic structural diagram of an information transmission system according to an embodiment of the present invention, which may include:
  • the wireless access network device 81 is configured to generate data transmission control information according to the wireless transmission capability information and/or the cache space information; and provide the data transmission control information to the application server 82 and/or the UE 84;
  • the application server 82 is configured to perform transmission control on data transmission between itself and the UE according to the data transmission control information;
  • the UE 84 is configured to perform transmission control on data transmission between itself and the application server according to the data transmission control information.
  • the wireless transmission capability information includes at least one of the following information: available bandwidth information allocated to the UE, cell congestion information, channel quality information measured by the UE, and real-time air interface rate information; and the cache space information includes the following information. At least one of: cache size total size information, cache space remaining size information, cache space fill rate, cache space size change value.
  • the radio access network device 81 is configured to determine, when the UE initially establishes a link with the application server, that the ratio of the total cache space to the first preset padding time is the first data transmission. And determining a second data transmission rate according to the wireless transmission capability information; determining the number according to the first data transmission rate or the second data transmission rate And transmitting the control information according to the data; or determining the data transmission control information according to a sum of the first data transmission rate and the second data transmission rate.
  • the radio access network device 81 is specifically configured to determine, in a data transmission process between the UE and the application server, that the ratio of the remaining size of the buffer space to the second preset padding time is the third data transmission.
  • the data transmission control information is determined according to the third data transmission rate or the available bandwidth information, where the available bandwidth information is determined according to the cell congestion information, the UE channel quality information, and the real-time air interface rate; The sum of the third data transmission rate and the available bandwidth determines the data transmission control information.
  • the radio access network device 81 is specifically configured to determine the data packet transmission rate according to the following formula: Among them: k is the default value, V mac real-time air interface rate, ⁇ buffer is the cache space size change value, BufferSize is the total cache space size.
  • the radio access network device 81 is specifically configured to determine k according to the following method: if the cache space filling rate is less than a first threshold, determining that k is a value greater than one; Determining that the cache space fill rate is not less than the first threshold and the cache space fill rate is less than a second threshold, determining that the k is 1; if the cache space fill rate is not less than the second threshold, determining k Is a value less than 1.
  • the radio access network device 81 is specifically configured to encapsulate the data transmission control information in a data packet transmitted between the UE and the application server, and send the data to the application server; or Transmitting the control information to the application server through the core network device; or sending the data transmission control information to the application server through a separate interface with the application server; or passing the data transmission control information The UE sends to the application server.
  • the information transmission system provided by the embodiment of the present invention may further include a core network device 83, where:
  • the radio access network device 81 is specifically configured to send the data transmission control information to the core network device 83 through a user plane data packet;
  • the core network device 83 is configured to parse the user plane data packet to obtain the data transmission control information; and encapsulate the data transmission control information in a data payload and send the data to the application server 82.
  • the radio access network device 81 is specifically configured to send the data transmission control information to the UE 84 through air interface signaling;
  • the UE 84 is configured to encapsulate the data control information in a data packet exchanged with the application server 82 and send the data to the application server 82.
  • the radio access network device 81 is specifically configured to carry the data transmission control information by using air interface signaling sent to the UE 84, or to carry the data by using a data packet exchanged with the UE 84. Transfer control information.
  • the radio access network device 81 is further configured to receive a service optimization request sent by the UE before providing the data transmission control information to the application server 82 and/or the UE 84.
  • the service optimization request is sent by the UE 84 when it is determined that the preset service optimization trigger condition is met.
  • FIG. 9 it is a schematic structural diagram of an information transmission apparatus implemented on a UE side or an application server side according to an embodiment of the present disclosure, which may include:
  • the receiving unit 91 is configured to receive data transmission control information sent by the radio access network device, where the data transmission control information is generated by the radio access network device according to the wireless transmission capability information and/or the cache space information;
  • the transmission control unit 92 is configured to perform transmission control on the data transmission between the peer and the opposite end according to the data transmission control information.
  • the receiving unit 91 has The body is configured to receive the data transmission control information that is sent by the wireless access network device by using air interface signaling; or receive the data transmission control information that is sent by the wireless access network device by using an interactive data packet.
  • the information transmission apparatus implemented by the UE side may further include:
  • a first sending unit configured to: after the receiving unit receives the data transmission control information that is sent by the radio access network device by using air interface signaling, send the data transmission control information to an application by using an interactive data packet server.
  • the information transmission apparatus implemented by the UE side may further include:
  • the second sending unit is configured to send a service optimization request to the radio access network device before the receiving unit 91 receives the data transmission control information sent by the radio access network device.
  • the information transmission apparatus implemented by the UE side may further include:
  • a determining unit configured to determine that the preset service optimization trigger condition is met before the second sending unit sends the service optimization request to the wireless access network device.
  • the service optimization triggering condition includes at least one of the following conditions: the UE initiates an initial connection, the UE detects that the data transmission performance decreases, the UE local service buffer is lower than a preset threshold, and the UE detects The quality of service indicators are lower than the preset quality indicators.
  • the receiving unit 91 is configured to receive data transmission control information sent by the radio access network device by using an interactive data packet, or receive the wireless connection.
  • the above parts are respectively divided into modules (or units) according to functions.
  • the functions of the various modules (or units) may be implemented in one or more software or hardware in the practice of the invention.
  • the information transmission apparatus shown in FIG. 9 may be provided in the UE or may be installed in the application server.
  • the first technical problem to be solved is how the wireless access network device will perform real-time wireless network environment information.
  • the UE is sent to the UE to determine data transmission control information with the application server accordingly.
  • the UE may further send the determined data transmission control information to the application server, so that the application server can adjust the data transmission between itself and the UE according to the received data transmission control information, so that Data transmission can change in real time as the information of the wireless environment changes, improving data transmission performance.
  • an embodiment of the present invention provides a method for transmitting information implemented by a device on a radio access network, as shown in FIG. 10a, which may include the following steps:
  • the wireless access network device sends the wireless network environment information to the UE.
  • the wireless network environment information may include, but is not limited to, at least one of the following: an available bandwidth of the UE, a cache information of the UE on the radio access network side, and cell congestion information.
  • the radio access network device may determine the available bandwidth of the UE according to the number of users currently accessed; or the radio access network device may newly determine the available bandwidth of the UE or the like according to the channel quality fed back by the UE.
  • the wireless access network device may periodically send the wireless network environment information to the UE, or the wireless access network device sends the wireless network environment information to the UE when the wireless network environment changes, or the wireless access network device may also The wireless network environment information is sent to the UE under the trigger of the UE, which is not limited in this embodiment of the present invention.
  • the method may further include:
  • the UE may report the service information of the service currently being used by the UE to the radio access network device. For example, the UE may play the video currently being played on the local cache information of the UE. Report to the wireless access network device.
  • the service information of the service currently being used by the radio access network device may be sent to the radio access network device by using RRC signaling, if the UE and the application server A data connection is established between the wireless access network device, and the UE can carry the service information of the service currently being used by the UE in the data packet transmitted to the application server through the wireless access network device.
  • RRC radio resource control
  • the wireless network environment information sent to the UE is determined according to the received service information.
  • the radio access network device may be increased to the UE.
  • the available bandwidth is sent to the UE for the adjusted available bandwidth information of the UE.
  • the radio access network device may send the radio network environment information to the UE by using air interface signaling with the UE, if the UE accesses the network device through the radio.
  • the data connection is established with the application server, and the wireless access network device can also carry the wireless network environment information by using the data packet transmitted between the UE and the UE.
  • FIG. 10b it is a schematic flowchart of an implementation process for transmitting a radio network environment information by using a RRC signaling between a UE and a radio access device, and may include the following steps:
  • S1001 The UE sends the service information of the service currently being used to the radio access network device.
  • the UE may send the service information of the currently used service to the radio access network device by using the RRC signaling.
  • the service information may be a buffer size of the video currently being played by the UE.
  • the wireless access network device determines current wireless network environment information.
  • the radio access network device is based on the current channel quality of the UE or the cell congestion information. And the service information provided by the UE determines the available bandwidth of the UE, for example, the radio access network device determines to increase the available bandwidth of the UE.
  • the radio access network device sends the wireless network environment information to the UE.
  • the radio access network device can carry the wireless network environment information by extending the existing RRC signaling.
  • the radio access network device may use layer 1 (L1) signaling, layer 2 (L2) signaling, or layer 3 (L3). Signaling.
  • L1 layer 1
  • L2 layer 2
  • L3 layer 3
  • Signaling For example, MAC CE signaling in L2 signaling, or RRC signaling in L3 signaling.
  • the signaling of the wireless network environment is not transmitted in the existing defined signaling. Therefore, in the embodiment of the present invention, the wireless network environment information may be transmitted by extending the MAC CE signaling. As shown in FIG. 11a and FIG.
  • the downlink channel (DL) LCID reserved bit may be extended to notify the UE of the DL network environment information (such as the available bandwidth of the UE or the network congestion information or the cache information of the UE on the radio access network side). Etc.)
  • the reserved bit 10111 may be used to indicate wireless network environment information.
  • the service information sent by the UE to the radio access network device may also be sent through air interface signaling.
  • 01011-10110 is a reserved bit. Therefore, in the embodiment of the present invention, the UL LCID (uplink logical channel indicator) reserved bit may be extended for UL service information (for example, the video buffer size of the UE side).
  • the notification of the UE for example, may be used to indicate the service information of the UE using the reserved bit 10101.
  • the UE determines data transmission control information according to the received wireless network environment information.
  • the UE sends the determined data transmission control information to the application server.
  • the wireless access network device may further carry the wireless network environment information by using the data packet transmitted between the UE and the UE.
  • the wireless access network device can carry wireless network environment information through user plane data packets transmitted between the UEs, where the user plane data packets can include MAC data packets or RLC data packets.
  • FIG. 10c it is a schematic flowchart of an implementation process of transmitting wireless network environment information by a UE and a wireless access device, and may include the following steps:
  • S1011 The UE sends the service information of the service currently being used to the radio access network device.
  • the UE may send the service information of the currently used service to the wireless access network device by using the transmitted data packet, for example, The service information may be a buffer size of a video currently being played by the UE.
  • the wireless access network device determines current wireless network environment information.
  • the radio access network device determines the available bandwidth of the UE according to the current channel quality of the UE or the cell congestion information and the service information provided by the UE. For example, the radio access network device determines to increase the available bandwidth of the UE.
  • the radio access network device sends the radio network environment information to the UE.
  • the radio access network device can carry the wireless network environment information by using the data packet sent to the UE.
  • the data packet of the related art does not carry the field of the wireless network environment information. Therefore, in the embodiment of the present invention, the user plane data packet transmitted between the wireless access network device and the UE needs to be extended to carry the wireless network environment information.
  • the reserved field in the existing user plane data packet can be used to carry the wireless network environment information or add a new field in the user plane data packet to carry the wireless network environment information and the like.
  • the UE determines data transmission control information according to the received wireless network environment information.
  • the UE sends the determined data transmission control information to the application server.
  • the radio access network device involved in the embodiment of the present invention may be a base station in a mobile communication system.
  • the radio access network device may further send the wireless network environment information to the UE after receiving the service optimization request sent by the UE.
  • the UE may send a service optimization request to the radio access network device when detecting that the preset trigger condition is met, where the trigger condition may include at least one of the following conditions:
  • the UE may send a service optimization request to the radio access network device during the TCP slow start phase, that is, the UE moves to the radio access network during the three-way handshake with the TCP.
  • the device sends a service optimization request.
  • the application server is a video server
  • the UE may send a service optimization request to the wireless access network device during an initial connection with the video server.
  • the UE detects a decrease in data transmission performance. For example, the UE detects that the number of repeated ACKs (acknowledgement packets) is received exceeds a preset threshold.
  • the local service buffer of the UE is lower than a preset threshold. For example, the UE detects that the video being played locally is paused.
  • the UE detects that the service quality indicator is lower than the preset quality indicator. For example, the UE detects that the quality parameter of the video quality being played by the local area is lower than the preset quality parameter value, or does not satisfy the preset quality parameter value, and the like. , the embodiments of the present invention are not listed one by one.
  • FIG. 10d it is a schematic flowchart of another implementation manner of the UE and the wireless access device transmitting the wireless network environment information through data transmission, which may include the following steps:
  • the UE triggers service optimization when the preset trigger condition is met.
  • the UE determines according to the preset trigger condition, and when the preset trigger condition is met, triggers sending a service optimization request to the radio access network device.
  • S1022 The UE sends a service optimization request to the radio access network device.
  • the radio access network device determines current radio network environment information.
  • the radio access network device determines the available bandwidth of the UE according to the current channel quality of the UE or the cell congestion information and the service information provided by the UE. For example, the radio access network device determines to increase the available bandwidth of the UE.
  • the wireless access network device sends the wireless network environment information to the UE.
  • the radio access network device can carry the wireless network environment information by using the data packet sent to the UE.
  • the data packet of the related art does not carry the field of the wireless network environment information. Therefore, in the embodiment of the present invention, the user plane data packet transmitted between the wireless access network device and the UE needs to be extended to carry the wireless network environment information.
  • the reserved field in the existing user plane data packet can be used to carry the wireless network environment information or add a new field in the user plane data packet to carry the wireless network environment information and the like.
  • the UE determines data transmission control information according to the received wireless network environment information.
  • the UE sends the determined data transmission control information to the application server.
  • the embodiment of the present invention further provides an information transmission method implemented by the UE side, as shown in FIG. 12a, which may include the following steps:
  • S121 Receive wireless network environment information sent by a wireless access network device.
  • the wireless access network device can transmit wireless network environment information to the UE using air interface signaling or data packets transmitted between the UEs.
  • the wireless access network device to send the wireless network environment information to the UE refer to the information transmission method implemented by the wireless access network device side, and details are not described herein again.
  • S122 Determine data transmission control information according to the received wireless network environment information.
  • the UE After obtaining the wireless network environment information sent by the wireless access device, the UE determines data transmission control information between itself and the application server according to the received wireless network environment information. Take the available bandwidth information in the wireless network environment as an example, where the available bandwidth of the UE may be based on the UE information. Information such as the channel environment, the degree of congestion of the cell, etc., if the available bandwidth is increased, the UE and the application server exchange control information to increase the data packet transmission and reception window or select a higher data transmission and reception code rate, if The available bandwidth is reduced, and the UE and the application server exchange control information to reduce the data packet transmission or reception window or select a lower data transmission and reception code rate; or adjust the transmission or reception window according to the RAN side buffer size and change. Or receiving the code rate.
  • the UE and the application server exchange control information to increase the data transmission rate or select a higher data reception rate. If the cache is higher than a certain threshold (such as 80%, etc.), and the buffer is increasing, the UE and the application server exchange control information to reduce the data transmission rate or select a lower data reception rate; or the UE according to Cell congestion information in a wireless network environment to adjust the receive or transmit window size or data receive rate, etc. Not enumerated example embodiment of the present invention.
  • step S122 the data transmission control information determined in step S122 is sent to the application server, so that the application server adjusts its own data transmission rate or transmission window according to the data transmission control information determined by the UE side.
  • the video server adjusts the code rate of the video data transmitted by the UE according to the data received by the UE.
  • the TCP server determines that the TCP packet is sent to the UE according to the size of the receiving window sent by the UE and the size of the congestion window maintained by the UE. The send window size and so on.
  • the information transmission method implemented by the UE side in the embodiment of the present invention may further include the following steps: sending the service information of the currently used service to the radio access network device to enable the radio access before performing step S121.
  • the network device determines the wireless network environment information sent to the UE according to the received service information.
  • the UE side sends the cache information of the currently playing video in the UE to the radio access network device, and the radio access network device determines that it is less than the preset threshold according to the received cache information.
  • the radio access network device determines that it is less than the preset threshold according to the received cache information.
  • the available bandwidth allocated to the UE may be increased.
  • the UE may increase its own data receiving window or data receiving code rate, and adjust The data receiving window is sent to the TCP server, so that the TCP server adjusts its own data sending window according to the data receiving window of the UE side and the congestion window maintained by itself, or sends the adjusted data receiving code rate to the video server, so that the TCP server Or the video server adjusts the code rate of the video data that it sends to the UE according to the received data transmission code rate.
  • the method before performing step S121, may further include the step of: sending a service optimization request to the radio access network device. In some embodiments, before transmitting the service optimization request to the wireless access network device, the method may further include determining that the preset trigger condition is met.
  • the trigger condition may include at least one of the following conditions:
  • the UE may send a service optimization request to the radio access network device during the TCP slow start phase, that is, the UE moves to the radio access network during the three-way handshake with the TCP.
  • the device sends a service optimization request.
  • the application server is a video server
  • the UE may send a service optimization request to the wireless access network device during an initial connection with the video server.
  • the UE detects a decrease in data transmission performance. For example, the UE detects that the number of repeated ACKs (acknowledgement packets) is received exceeds a preset threshold.
  • the local service buffer of the UE is lower than a preset threshold. For example, the UE detects that the video being played locally is paused.
  • the UE detects that the service quality indicator is lower than the preset quality indicator. For example, the UE detects that the quality parameter of the video quality being played by the local area is lower than the preset quality parameter value, or does not satisfy the preset quality parameter value, and the like. , the embodiments of the present invention are not listed one by one.
  • S1201 The UE sends the service information of the currently ongoing service to the radio access network device.
  • the UE may send the service information of the currently used service to the wireless access network device by using the transmitted data packet, for example, The service information may be a buffer size of a video currently being played by the UE.
  • step S121 is an optional step.
  • step S122 may be directly executed without executing step S121.
  • the wireless access network device determines current wireless network environment information.
  • the radio access network device may determine the current radio network environment information according to the received service information. For example, the radio access network may determine the current available bandwidth of the UE according to the local cache information of the UE, specifically, if the UE is local. If the cache is smaller than the preset threshold, the radio access network increases the bandwidth allocated to the UE, that is, increases the available bandwidth of the UE.
  • the radio access network device may also determine the available bandwidth of the UE in conjunction with the current channel quality or cell congestion information of the UE.
  • the radio access network device may directly according to the current channel quality of the UE or the cell congestion information. For example, if the current cell congestion rate is lower than a preset threshold according to the cell congestion information, the radio access network increases. The bandwidth allocated to the UE is increased, that is, the available bandwidth of the UE is increased.
  • the radio access network device sends the determined radio network environment information to the UE.
  • the radio access network device sends the radio network environment information to the UE by using air interface signaling; or the radio network environment information that the radio access network device sends to the UE by using the data packet.
  • the data packet includes a user plane data packet, for example, a MAC data packet or an RLC data packet.
  • the air interface signaling includes layer 1 signaling, layer 2 signaling or layer 3 signaling, for example, layer 2 MAC CE signaling in signaling, RRC signaling in layer 3 signaling.
  • the UE determines data transmission control information according to the received wireless network environment information.
  • the UE After obtaining the wireless network environment information sent by the wireless access device, the UE determines the transmission control information between itself and the application server according to the received wireless network environment information. Taking the available bandwidth information in the wireless network environment as an example, the available bandwidth of the UE may be determined according to information such as the UE channel environment and the degree of congestion of the cell. If the available bandwidth is increased, the UE and the application server exchange control information. Increase the packet transmission and reception window or select a higher data transmission and reception code rate. If the available bandwidth is reduced, the UE and the application server exchange control information to reduce the data packet transmission or reception window or select a lower one. Data transmission and reception code rate; or adjust the transmission or reception window or receiving code rate according to the RAN side buffer size and change.
  • the UE and the application exchanges control information to increase the data transmission rate or select a higher data reception rate. If the cache is higher than a certain threshold (such as 80%, etc.) and the cache is increasing, the UE interacts with the application server. Transmitting control information to reduce data transmission rate or selecting a lower data reception rate; or UE according to wireless network
  • the cell congestion information in the environment is used to adjust the size of the receiving or sending window or the data receiving code rate, etc., which are not enumerated in the embodiment of the present invention.
  • the UE performs transmission control on data transmission between itself and the application server according to the wireless network environment.
  • step S1204 and the step S1204' do not have a certain order of execution, and both can be performed simultaneously, and the step S1204' can also be performed before the step S1204.
  • S1205 Send the determined data transmission control information to the application server.
  • step S122 the data transmission control information determined in step S122 is sent to the application server, so that the application server adjusts its own data transmission rate or transmission window according to the data transmission control information determined by the UE side.
  • the application server controls the information between the UE and the UE according to the received data transmission control information.
  • the data transmission is carried out for transmission control.
  • the video server adjusts the code rate of the video data transmitted by the UE according to the data received by the UE.
  • the TCP server determines that the TCP packet is sent to the UE according to the size of the receiving window sent by the UE and the size of the congestion window maintained by the UE. The send window size and so on.
  • the UE determines the data transmission control information between the UE and the application server according to the real-time wireless network environment information sent by the radio access network device, and notifies the application server to perform corresponding adjustment, thereby enabling the UE to
  • the data transmission control between the application servers can be adjusted as the wireless network environment changes, so that the data transmission rate matches the real-time wireless network environment, thereby improving data transmission efficiency and network resource utilization.
  • an information transmission system a wireless access network device side, and an information transmission device implemented by the UE side and related devices are separately provided in the embodiments of the present invention, and the foregoing apparatus, system, and device solve the problem.
  • the above information transmission methods are similar, so the implementation of the above devices, systems, and devices can be referred to the implementation of the method, and the repeated description is not repeated.
  • FIG. 13 it is a schematic structural diagram of an information transmission apparatus implemented on a radio access network device side, and may include:
  • the sending unit 131 is configured to send wireless network environment information to the UE.
  • the wireless network environment information is used to instruct the UE to determine data transmission control information according to the wireless network environment information, and send the data to the application server.
  • the information transmission device implemented by the radio access network device side may further include:
  • the first receiving unit is configured to receive a service optimization request sent by the UE before the sending unit 131 sends the wireless network environment information to the UE.
  • the sending unit 131 may be configured to send the wireless network environment information to the UE by using air interface signaling, or send the wireless network environment information by using a data packet transmitted between the UE. .
  • the transmitting unit 131 can be configured to transmit the wireless network environment information using a user plane data packet transmitted between the UE.
  • the user plane data packet includes a MAC data packet or an RLC data packet.
  • the transmitting unit 131 may be configured to transmit the wireless network environment information to the UE using layer 1 signaling, layer 2 signaling, or layer 3 signaling.
  • the layer 2 signaling includes MAC CE signaling
  • the layer 3 signaling includes RRC signaling.
  • the information transmission device implemented by the radio access network device side may further include:
  • the second receiving unit 132 is configured to receive, before the sending unit 131 sends the wireless network environment information to the UE, the service information that is sent by the UE and is currently using the service;
  • the determining unit 133 is configured to determine the wireless network environment information sent to the UE according to the service information received by the receiving unit 132.
  • the above parts are respectively divided into modules (or units) according to functions.
  • the functions of the various modules (or units) may be implemented in one or more software or hardware in the practice of the invention.
  • the information transmission apparatus shown in FIG. 13 described above may be provided in a radio access network device such as a base station.
  • the transmitting unit 131, the first receiving unit, and the second receiving unit 132 may be implemented by a communication interface in the information transmission device, and the determining unit 133 may be implemented by a processor in the information transmission device.
  • FIG. 14 it is a schematic structural diagram of an information transmission apparatus implemented on the UE side, and may include:
  • the receiving unit 141 is configured to receive wireless network environment information sent by the wireless access network device.
  • the first determining unit 142 is configured to determine data transmission control information according to the received wireless network environment information
  • the first sending unit 143 is configured to send the determined data transmission control information to the application server.
  • the information transmission apparatus implemented on the UE side may further include:
  • the second sending unit is configured to send a service optimization request to the radio access network device before the receiving unit receives the wireless network environment information sent by the radio access network device.
  • the information transmission apparatus implemented on the UE side may further include:
  • the second determining unit is configured to determine that the preset trigger condition is met before the second sending unit sends the service optimization request to the wireless access network device.
  • the trigger condition may include at least one of the following conditions:
  • the UE may send a service optimization request to the radio access network device during the TCP slow start phase, that is, the UE moves to the radio access network during the three-way handshake with the TCP.
  • the device sends a service optimization request.
  • the application server is a video server
  • the UE may send a service optimization request to the wireless access network device during an initial connection with the video server.
  • the UE detects a decrease in data transmission performance. For example, the UE detects that the number of repeated ACKs (acknowledgement packets) is received exceeds a preset threshold.
  • the local service buffer of the UE is lower than a preset threshold. For example, the UE detects that the video being played locally is paused.
  • the UE detects that the service quality indicator is lower than the preset quality indicator. For example, the UE detects that the quality parameter of the video quality being played by the local area is lower than the preset quality parameter value, or does not satisfy the preset quality parameter value, and the like. , the embodiments of the present invention are not listed one by one.
  • the receiving unit 141 may be configured to receive wireless network environment information that is sent by the wireless network device using air interface signaling; or receive wireless network environment information that the wireless network device sends using the data packet.
  • the data packet includes a user plane data packet, and the user plane data packet includes MAC packet or RLC packet.
  • the air interface signaling includes layer 1 signaling, layer 2 signaling or layer 3 signaling.
  • the layer 2 signaling includes MAC CE signaling
  • the layer 3 signaling includes RRC signaling.
  • the information transmission apparatus implemented by the UE side may further include a third sending unit 144, where:
  • the third sending unit 144 is configured to send, to the radio access network device, service information that is currently in service;
  • the receiving unit 141 is specifically configured to receive the wireless network environment information that is determined by the wireless access network device and is determined according to the service information.
  • modules or units
  • functions of the various modules (or units) may be implemented in one or more software or hardware in the practice of the invention.
  • the information transmission apparatus shown in FIG. 14 described above may be provided in the UE.
  • the receiving unit 141, the first sending unit 143, the second sending unit, and the third sending unit 144 may be implemented by a communication interface in the information transmission device; the first determining unit 142 and the second determining unit may be information A processor implementation in the transmission device.
  • FIG. 15 it is a schematic structural diagram of an information transmission system according to an embodiment of the present invention, which may include: a user equipment 151, a radio access network device 152, and an application server 153, where:
  • the wireless access network device 152 is configured to send wireless network environment information to the UE 151;
  • the UE 151 is configured to determine data transmission control information according to the wireless network environment information, and send the determined data transmission control information to the application server 153;
  • the application server 153 is configured to perform transmission control on data transmission between itself and the UE 151 according to the received data transmission control information.
  • the UE 151 is further configured to send a service optimization request to the radio access network device.
  • the UE 151 sends a service optimization request to the radio access network device when the preset trigger condition is met.
  • the triggering condition includes at least one of the following conditions: the UE initiates an initial connection, the UE detects a decrease in data transmission performance, the UE local service buffer is lower than a preset threshold, and the UE detects a service quality indicator. Below the preset quality indicator.
  • the radio access network device 152 is specifically configured to send radio network environment information to the UE by using air interface signaling, or wireless network environment information sent to the UE by using a data packet.
  • the data packet includes a user plane data packet
  • the user plane data packet includes a media access control MAC data packet or a radio link control RLC data packet.
  • the air interface signaling includes layer 1 signaling, layer 2 signaling or layer 3 signaling, the layer 2 signaling includes MAC CE signaling, and the layer 3 signaling includes radio resource control RRC signaling.
  • the UE 151 may be further configured to transmit, to the radio access network device 152, service information of a currently used service before the radio access network device 152 transmits the radio network environment information;
  • the wireless access network device 152 is specifically configured to determine wireless network environment information according to the service information.
  • the UE 151 is further configured to perform transmission control of data transmission between itself and the application server according to the wireless network environment.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.
  • an embodiment of the present invention further provides a computer readable storage medium, where the computer program is stored, and when the computer program is executed by the processor, the wireless access network device side in the first implementation manner is implemented.
  • the steps of the method, or the steps of any method of the UE side in the foregoing first implementation manner, or the steps of any method of the application server side in the foregoing first implementation manner, or the wireless connection in the foregoing second implementation manner Steps of either method of the network device side, or steps of any method of the UE side in the second implementation manner
  • the radio access network side generates data transmission control information according to the wireless transmission capability information and the cache space information, and provides the data transmission control information to the application server and/or the UE, so that the application server and/or Or the UE can control the data transmitted by the UE according to the wireless transmission status and the buffer space situation on the wireless network side, thereby improving the utilization and throughput of the wireless resources.
  • the solution provided by the embodiment of the present invention is that the wireless network access device sends the wireless network environment information to the UE, so that the UE can determine the data transmission control information between the user and the application server to be sent to the application server according to the real-time wireless network environment.
  • the real-time changing wireless environment information is provided to the application server, so that the application server can control the data transmitted between the UE and the UE according to the received data transmission control information, thereby realizing data transmission and real-time wireless network.
  • the environment is matched to improve data transmission efficiency and network resource utilization.

Abstract

La présente invention concerne un procédé, un dispositif, un système, un équipement associé, et un support de stockage lisible par ordinateur devant être utilisés dans la transmission d'informations. Le procédé consiste à : générer des informations de commande de transmission de données, d'après des informations de capacité de transmission sans fil et/ou des informations d'espace en cache ; fournir les informations de commande de transmission de données à un serveur d'application et/ou à un équipement d'utilisateur (UE).
PCT/CN2017/096852 2016-08-12 2017-08-10 Procédé, dispositif, système, équipement associé, et support de stockage devant être utilisés dans la transmission d'informations WO2018028638A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201610666594.9 2016-08-12
CN201610666594.9A CN107734550A (zh) 2016-08-12 2016-08-12 一种信息传输方法、装置、系统和相关设备
CN201610666510.1 2016-08-12
CN201610666510.1A CN107734522A (zh) 2016-08-12 2016-08-12 一种数据传输优化方法、装置、系统和相关设备

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WO2018028638A1 true WO2018028638A1 (fr) 2018-02-15

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CN101611600A (zh) * 2007-02-14 2009-12-23 朗讯科技公司 在无线通信系统中提供反馈给媒体服务器的方法
WO2013001230A1 (fr) * 2011-06-30 2013-01-03 France Telecom D'obtention par un terminal d'une information relative a un acces a un service
CN105264458A (zh) * 2012-11-09 2016-01-20 诺基亚通信公司 网络信息的自适应利用

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CN1867112A (zh) * 2005-12-09 2006-11-22 华为技术有限公司 一种PoC媒体流业务的控制方法及系统
CN101611600A (zh) * 2007-02-14 2009-12-23 朗讯科技公司 在无线通信系统中提供反馈给媒体服务器的方法
WO2013001230A1 (fr) * 2011-06-30 2013-01-03 France Telecom D'obtention par un terminal d'une information relative a un acces a un service
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CN114598653A (zh) * 2022-05-09 2022-06-07 上海飞旗网络技术股份有限公司 一种基于时延管理模型的数据流加速方法

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