WO2015096419A1 - 多路径传输方法、系统及数据发送装置和数据接收装置 - Google Patents
多路径传输方法、系统及数据发送装置和数据接收装置 Download PDFInfo
- Publication number
- WO2015096419A1 WO2015096419A1 PCT/CN2014/080272 CN2014080272W WO2015096419A1 WO 2015096419 A1 WO2015096419 A1 WO 2015096419A1 CN 2014080272 W CN2014080272 W CN 2014080272W WO 2015096419 A1 WO2015096419 A1 WO 2015096419A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- data
- link
- transmission
- packet
- data packet
- Prior art date
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 247
- 238000000034 method Methods 0.000 title claims abstract description 105
- 230000008569 process Effects 0.000 claims description 42
- 238000004891 communication Methods 0.000 claims description 22
- 238000007781 pre-processing Methods 0.000 claims description 19
- 230000010267 cellular communication Effects 0.000 claims description 10
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 230000007774 longterm Effects 0.000 claims description 4
- 238000012937 correction Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 14
- 238000005516 engineering process Methods 0.000 description 10
- JZEPSDIWGBJOEH-UHFFFAOYSA-N 4-decylbicyclo[2.2.1]hept-2-ene Chemical compound C1CC2C=CC1(CCCCCCCCCC)C2 JZEPSDIWGBJOEH-UHFFFAOYSA-N 0.000 description 6
- 238000010295 mobile communication Methods 0.000 description 5
- 230000001934 delay Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0059—Convolutional codes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0076—Distributed coding, e.g. network coding, involving channel coding
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0041—Arrangements at the transmitter end
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0067—Rate matching
- H04L1/0068—Rate matching by puncturing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L2001/0092—Error control systems characterised by the topology of the transmission link
- H04L2001/0096—Channel splitting in point-to-point links
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L2001/0092—Error control systems characterised by the topology of the transmission link
- H04L2001/0097—Relays
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
Definitions
- Multipath transmission method system, data transmitting device and data receiving device
- the present invention relates to the field of wireless communication technologies, and more particularly to a wireless multi-path transmission method and system, and a wireless data transmitting apparatus and a wireless data receiving apparatus. Background technique
- a base station In a wireless cellular communication system, a base station (eNB, or a base station) is a device that provides wireless access for a user equipment (UE, User Equipment), and may also be called a terminal terminal, and wireless communication is performed between the base station and the user equipment through electromagnetic waves. .
- a base station may provide one or more service cells, and the wireless communication system may provide wireless coverage for terminals within a certain geographical range through the service cell.
- wireless communication systems need to deploy base stations with large coverage. These base stations are usually called macro base stations (Macro eNB/Macro BS, Macro Base Station), and their serving cells are usually called macro cells. (Macro Cell).
- macro base stations Macro eNB/Macro BS, Macro Base Station
- macro cells Macro Cell
- TP Transmission Point
- These small base stations include a micro base station (Pico eNB or Pico BS) and a child base station (Femto eNB or Femto BS), wherein the base station can also be called a home base station ( ⁇ or HeNB), a femto base station or a femto base station, a micro base station and
- the cells provided by the home base station are called a pico cell and a femtocell.
- the nodes corresponding to the small base stations are also referred to as low power nodes (LPNs), and the cells corresponding to these nodes are also called small cells.
- LPNs low power nodes
- Wireless cellular communication systems have gradually evolved into a variety of formats, such as second-generation mobile communication technologies such as Global System for Mobile Communications (GSM), Code Division Multiple Access (CDMA).
- Third-generation mobile communication technologies such as Wideband Code Division Multiple Access (WCDMA), Time Division-Synchronous Code Division Multiple Access (TD-SCDMA), CDMA-2000, global mutual Wimax, Worldwide Interoperability for Microwave Access, Evolved Third or Fourth Generation Mobile Communications Technologies such as Long Term Evolution (LTE), LTE-A Advanced Long Term Evolution (LTE-Advanced), Wimax2 .0.
- GSM Global System for Mobile communications
- GERAN GSM/EDGE radio access network
- WCDMA and TD-SCDMA corresponding to universal mobile communication system terrestrial radio access network (UTRAN) UMTS Terrestrial Radio Access Network
- LTE/LTE-A corresponds to evolved UTRAN (E-UTRAN).
- the wireless communication system includes a wireless local area network (WLAN), and the air interface standard is ⁇ 802.11 series standard, including 802.11a, 802.11n, 802.11. Ac, etc., the maximum transfer rate they support is different.
- WLAN access point AP, Access Point, also referred to as an access node
- WIFI AP can also be regarded as a low power node.
- 5G fifth generation
- 5G wireless communication technologies including 5G wireless communication technologies and related wireless communication technologies, may coexist for a long time.
- FIG. 1 is a schematic diagram of a heterogeneous network of a multimode base station according to the related art.
- base stations/cells of various types of various standards coexist at the same time, for example, a macro base station, a micro base station, and a macro.
- Cell, small cell, LTE, WIFI/WLAN coexist.
- multi-mode small base stations deployed in the industry usually support three or more types, such as UMTS, LTE (including FDD-LTE and/or TDD-LTE) and WLAN, and may also support second and third generations. , and / or the fifth generation of wireless communication technology).
- a user's data passes through multiple pieces. That is, two or more paths are transmitted.
- the MeNB Micro eNB
- the MeNB distributes user data, and some data.
- packet 1 in FIG. 2 packet 3 and packet 5 are sent by the MeNB itself to the UE, and another part of data, such as packet 2 and packet 4 in FIG. 2, is forwarded to the small base station (SeNB).
- Small eNB Small eNB
- the UE will receive two from the MeNB and from the SeNB.
- the strip link receives data.
- both links from the MeNB and from the SeNB are normal, then the UE receives the data packet 1, the data packet 3 and the data packet 5 from the MeNB, and receives the data packet 2 and the data packet 4 from the SeNB, so that the UE receives To the full data.
- Packet 2 and Packet 4 will not be able to reach the UE via the link, which will cause problems with the entire data transmission.
- the TCP transmission may be interrupted or suffer a significant throughput drop.
- Packet 1, Packet 3 and Packet 5 will not be able to reach the UE via the MeNB, causing problems with the entire data transmission.
- the root cause of the entire data transmission failure is that the data packets are simply distributed to the different links when the data packets are distributed at the anchor point, and the wireless links are matched. Moreover, even if each link works properly, the delay of each link and the bandwidth allocated to the user are likely to be different. The ideal partition should be distributed proportionally according to the bandwidth allocated to the user per link. However, in fact, the bandwidth allocated to the user for each link in the wireless link is dynamically changed and unpredictable. Therefore, since the distribution policy of multiple paths is difficult to match the actual state of each link, a difference is presented. The link distributes too many packets, and too few packets are distributed to the good link, resulting in greatly limited data transmission efficiency, decreased throughput, and increased latency. The worst case scenario is that when a link is congested or the link fails, the entire data transmission is interrupted.
- the problem to be solved by the embodiments of the present invention is to provide a wireless multi-path transmission method, system, data transmitting apparatus, and data receiving apparatus, which can flexibly implement multi-path transmission data, so as to efficiently utilize resources provided by each link as user data. Transfer service.
- a wireless multipath transmission method includes:
- the data transmitting end encodes the original data packet, and the number of encoded data packets is greater than the original number. According to the number of packages;
- the data receiving end receives data packets from different transmission links, and decodes the received data packets to obtain original data packets.
- the method before the step of encoding, by the data sending end, the plurality of original data packets, the method further includes: performing, by the data sending end, PDCP header compression on the original data packet.
- the method further includes: the data sending end performs PDCP layer encryption on the original data packet.
- the original data packet is a packet data convergence protocol PDCP service data unit SDU or a protocol data unit PDU.
- the step of encoding the original data packet by the data sending end includes:
- the data transmitting end encodes the original data packet at a PDCP layer; or the data transmitting end encodes an original data packet at a radio link control RLC layer.
- the encoding is forward error correction coding FEC.
- the encoded data packet carries a sequence number; or, the indication information and the sequence number indicating whether to perform coding are carried;
- the step of obtaining the original data packet after decoding the received data packet comprises: the data receiving end decoding according to the serial number and the data packet content carried in the received data packet header, and restoring the original data packet.
- the encoded data packet further carries a process identifier for indicating an encoding transmission process
- the step of obtaining the original data packet after decoding the received data packet comprises: the data receiving end placing the data packets with the same process identifier in the same cache and decoding.
- the method further includes:
- the sending end terminates transmitting the data related to the original data packet obtained by decoding in the encoded data packet, starts a new round of transmission of the original data, and informs the data receiving end that the data transmitting end sends New data; or,
- the data receiving end feeds back to the data sending end the serial number of the packet that has been successfully received, and the packet that has not been successfully received or received; the data sending end determines the data receiving end according to the information fed back by the data receiving end. Whether the original data packet has been successfully obtained, and if so, the transmission of the data related to the original data packet obtained by decoding in the encoded data packet is terminated, a new round of transmission of the original data is started, and the data is notified.
- the data sender sent by the receiving end sends new data.
- the step of the data sending end sending the encoded data packet to the data receiving end by using different transmission links includes:
- the data transmitting end determines a transmission link for transmitting the encoded data packet and a number of data packets transmitted on each transmission link according to the encoded code rate, link status, and/or link bandwidth.
- the different transmission links include: a macro cell link and a small cell link; or, a source cell link and a target cell link;
- the non-LTE system link includes a wireless local area network (WLAN) link and/or a third generation cellular communication (3G) link;
- WLAN wireless local area network
- 3G third generation cellular communication
- an LTE licensed band link and an LTE unlicensed band link are Or, an LTE licensed band link and an LTE unlicensed band link;
- an LTE licensed band link and an LTE shared band link Or, an LTE licensed band link and an LTE shared band link;
- LTE low band link and LTE high band link
- the transmission link is: a downlink transmission link, an uplink transmission link, a relay transmission link, or a device-to-device D2D communication link.
- the transmission link is a downlink transmission link
- the method also includes:
- the network side where the data sending end is located notifies the configuration information encoded by the data receiving end;
- the data receiving end performs data decoding according to the encoded configuration information.
- the encoded configuration information includes: a number of original data packets and a coded code rate.
- the transmission link is an uplink transmission link
- the method also includes:
- the network side where the data receiving end is located notifies the configuration information encoded by the data sending end; the data sending end performs data encoding according to the encoded configuration information; wherein the encoded configuration information includes: the number of original data packets and the encoded Code rate.
- the method further includes: the network side where the data sending end is located, notifying the data receiving end to start or exit the encoded data transmission mode.
- a wireless multi-path transmission system comprising one or more data transmitting devices, and a data receiving device;
- Any one of the data transmitting devices is configured to: encode the original data packet, and send the encoded data packet to the data receiving device through different transmission links; wherein, the number of the encoded data packets is greater than the original data packet Number
- the data receiving device is configured to: receive data packets from different transmission paths, and perform decoding to obtain original data packets.
- the data sending apparatus includes:
- Macro base station and small base station are Macro base station and small base station
- the source base station and the destination base station are Or, the source base station and the destination base station;
- an LTE base station and a non-LTE base station may be a WLAN access point or a 3G base station;
- the donor base station and the relay node Or, the donor base station and the relay node;
- a D2D communication device Or, a D2D communication device.
- the data sending apparatus includes a pre-processing module and a distribution module, where the pre-processing module is configured to: encode the original data packet, and send the encoded data packet to the distribution module;
- the distribution module is configured to: determine, by the transmission link used to transmit the encoded data packet, to transmit the encoded data packet to the data receiving end device through the determined transmission link.
- the pre-processing module is further configured to: perform PDCP header compression on the original data packet.
- the pre-processing module is further configured to: perform PDCP layer encryption on the original data packet.
- the distribution module is configured to determine, by using a transmission link for transmitting the encoded data packet, to send the encoded data packet to the data receiving end device by using the determined transmission link. :
- the transmission link used to transmit the encoded data packet and the number of data packets transmitted on each transmission link are determined based on factors such as code rate, and/or link status, and/or link bandwidth.
- the data receiving apparatus includes a merging module, and the merging module is configured to: receive data packets from different transmission paths, and decode the received data packets to obtain original data packets.
- the merging module in the data receiving device is further configured to: send feedback success receiving information to the distribution module in the data sending device;
- the distribution module of the data transmitting device is further configured to: terminate the transmission of data related to the original data packet obtained by decoding in the encoded data packet.
- the merging module in the data receiving device is further configured to: after receiving the data packet, feed back to the distribution module in the data sending device that the packet has been successfully received, and the packet that is not successfully received or not received Serial number
- the distribution module in the data sending apparatus is further configured to: determine, according to information fed back by the merging module in the data receiving apparatus, whether the data receiving end has successfully acquired the original data packet, and if yes, terminate the transmission Data remaining in the encoded data packet related to the original data packet obtained by decoding.
- a wireless data transmitting device includes a preprocessing module and a distribution module; wherein
- the pre-processing module is configured to: encode the original data packet, and output the encoded data packet to the distribution module;
- the distribution module is configured to: determine a transmission link for transmitting the encoded data packet, and send the encoded data packet to the data receiving end device through the determined transmission link.
- the pre-processing module is further configured to: perform PDCP header compression on the original data packet.
- the pre-processing module is further configured to: perform PDCP layer encryption on the original data packet.
- the distribution module is further configured to: after receiving feedback from the data receiving device for successful reception, Terminating the transmission of data related to the original data packet obtained by decoding in the encoded data packet.
- the distribution module is further configured to: determine, according to the successfully received, fed back from the data receiving device, and the sequence number of the packet that is not successfully received or received, whether the data receiving end has successfully obtained the original The data packet, if yes, terminates transmission of data related to the original data packet obtained by decoding in the encoded data packet.
- a wireless data receiving apparatus includes a merging module, and the merging module is configured to: receive data packets from different transmission links, and decode the received data packets to obtain original data packets.
- the merging module is further configured to: feed back the successfully received information to the data sending device.
- the merging module in the data receiving apparatus is further configured to: after decoding the obtained original data packet, feed back to the data transmitting apparatus, the serial number of the packet that has been successfully received, and the unsuccessfully received or not received.
- a base station provided with any one of the data transmitting apparatuses as described above, and/or any of the data receiving apparatuses as described above.
- the base station is further configured to: notify the encoded configuration information.
- a terminal provided with any one of the data transmitting apparatuses as described above, and/or any one of the data receiving apparatuses as described above.
- the terminal is further configured to: receive the encoded configuration information.
- the technical solution of the present application includes that the data sending end encodes a plurality of original data packets, and the number of the encoded data packets is greater than the number of the original data packets; Different transmission links send the encoded data packets to the data receiving end; the data receiving end receives the data packets from different transmission links, and decodes to obtain the original data packets.
- the original data packet is encoded (the number of encoded data packets is greater than the number of original data packets), and then distributed, and the multi-path transmission data is flexibly implemented, and the encoded data packet is When the distribution is performed, the combined configuration information is further considered, and the resources provided by each link are utilized efficiently for the user data transmission service, thereby reducing the transmission delay.
- FIG. 1 is a schematic diagram of a heterogeneous network of a multimode base station of the related art
- FIG. 2 is a schematic diagram of a related implementation of a multipath transmission method
- FIG. 3 is a flowchart of a method for transmitting a wireless multi-path according to an embodiment of the present invention
- FIG. 4 is a schematic diagram of a wireless multi-path transmission method according to a first embodiment of the present invention.
- FIG. 5 is a schematic diagram of a wireless multi-path transmission method according to a second embodiment of the present invention.
- FIG. 6 is a schematic diagram of a wireless multi-path transmission method according to a third embodiment of the present invention.
- FIG. 7 is a schematic diagram of a wireless multi-path transmission method according to a fourth embodiment of the present invention.
- FIG. 8 is a schematic structural diagram of a wireless multi-path transmission system according to an embodiment of the present invention.
- FIG. 3 is a flowchart of a method for transmitting a wireless multi-path according to an embodiment of the present invention. As shown in FIG. 3, the method includes the following steps:
- Step 300 The data sending end encodes multiple original data packets, and the number of encoded data packets is greater than the number of original data packets.
- the original data packet may be a packet data convergence protocol (PDCP, Packet Data).
- PDCP packet data convergence protocol
- Packet Data Packet Data
- SDU Service Data Unit
- PDU Protocol Data Unit
- the data transmitting end encodes K PDCP data packets, and generates N air interface data packets; wherein, among the N encoded data packets, the first K data packets are still K original PDCP data packets before encoding, (NK) packets are redundant packets.
- K and N are positive integers greater than 1, and N > K.
- the ratio of the original data packet to the encoded data packet ie ⁇ / ⁇ is called the encoding integer. For example, when the transmission link status is good and stable (for example, in the case of dual-connection transmission between the macro base station and the small base station), the code rate of the coding can be appropriately reduced, and the data of the redundant packet can be reduced to reduce the codec complexity.
- the code rate and the redundancy packet may be appropriately increased.
- the number in order to more effectively counter the unpredictable factors in the transmission, to ensure that the data receiver receives enough data packets in the shortest time to recover the original data packet; for example, the link ⁇ is stable but the bandwidth available is limited ( For example, if the LTE macro base station link is not stable but the maximum bandwidth that can be provided is large (such as a WLAN link, or an LTE unlicensed band link, or a relay link), it can be used.
- the receiving end can obtain the required data very efficiently through the original packet of the link A. If the link B is good, the receiving end receives a small number of original packets and the link B of the link A. A large number of redundant packets can also receive enough data packets to decode and restore all the original packets.
- the data sending end may encode the original data packet at the PDCP layer; or encode the original data packet at the Radio Link Control (RLC) layer.
- RLC Radio Link Control
- the method further includes: the data sending end performs PDCP header compression on the original data packet; or the data sending end performs PDCP layer encryption on the original data packet.
- the coding in this step may be forward error correction coding (FEC).
- the encoded data packet header carries a sequence number; or, carries an indication information and a sequence number indicating whether to perform coding;
- the encoded data packet header further carries a process identifier for indicating an encoding transmission process, so as to support independent codec operations on different process data packets, so that support is started when the previous process has not ended yet.
- the transmission of a process that is, the simultaneous parallel transmission of multiple processes. Receiving end.
- the data transmitting end may determine which transmission links are used to transmit data packets according to the coded rate, and/or the link status, and/or the chain, and the number of data packets transmitted on each transmission link. (or the proportion of packets transmitted on each link). Determine which transmission chains are determined according to the status of different links, and determine the link that actually participates in the transmission of the data packet (for example, only two or three links with good link channel quality and/or low load are involved in the transmission of the data packet). How many packets are transmitted on the road and which packets are transmitted.
- the data distribution policy of different links is adjusted according to the state of different links, which is not limited herein, and is not limited to the scope of protection of the present invention, as long as the data transmission abnormality in part of the link is satisfied (for example, packet loss, packet delay is large, In the case of the link disconnection, the data receiving end can always restore the original data packet, and the specific implementation strategy is many.
- the data packets are distributed according to the ratio of the bandwidth that each link can provide to the user: For example, the bandwidth that Link A can provide is twice the bandwidth that Link B can provide, then the distribution policy can be per link.
- A is divided into 2 packets, and then B is divided into 1 packet, which is sequentially distributed.
- the distribution policy can be adjusted. Allocate more packets to Link B.
- the original packet can be more allocated to a link with a better or more stable link state, and the redundant packet is more.
- different transmission links may include: a macro cell link and a small cell link; or, a source cell link and a target cell link;
- an LTE link and a non-LTE system link where the non-LTE system link includes a wireless local area network (WLAN) link and/or a third generation cellular communication (3G) link;
- WLAN wireless local area network
- 3G third generation cellular communication
- an LTE licensed band link and an LTE unlicensed band link or an LTE licensed band link and an LTE shared band link, or a frequency division duplex (FDD) link and a time division duplex (TDD) link
- LTE low-band links and LTE high-band links or 4G (4th generation wireless communication) and 5G (5th generation wireless communication), even in the joint transmission of 3G and wireless local area network (WLAN)
- WLAN wireless local area network
- the transmission link may be a downlink transmission link.
- the data transmitting end is the network side, and the data receiving end is the UE;
- the transmission link may be an uplink transmission link.
- the data sending end is a UE, and the data receiving end is a network side;
- the transmission link may be a relay transmission link.
- the data transmission and reception parties are a base station and a relay node, or a relay node and a relay node;
- the transmission link may be a device-to-device (D2D) communication link.
- D2D device-to-device
- the method when the transmission link is a downlink transmission link, the method further includes: the base station located at the network side notifying the configuration information encoded by the UE, and the UE performing data decoding according to the encoded configuration information; where the encoded configuration information may include but is not limited to : The number of packets used for encoding, the code rate of the encoding, and so on.
- the method further includes: the base station on the network side where the data receiving end is located, notifying the configuration information encoded by the UE, and the UE at the data transmitting end performing data encoding according to the encoded configuration information;
- the embodiment of the present invention further includes: the network side notifying the UE to start or exit the encoded data transmission mode.
- Step 302 The data receiving end receives the data packets from different transmission links, and performs decoding to obtain the original data packet.
- the data receiving end performs solution according to the sequence number and the content of the data packet carried in the data packet header. Code, restored to the original data packet;
- the receiving end performs decoding according to the process identifier. Specifically, the receiving end puts the data packets with the same process identifier in the same cache and performs decoding.
- the method of the embodiment of the present invention further includes: the data receiving end feeds back the successfully received information to the data sending end, and the data sending end terminates transmitting the remaining data in the encoded data packet, and decoding Obtain the data related to the original data packet, and start a new round of transmission of the original data, and instruct the receiving end to send new data.
- the data transmitting end transmits less than N data packets.
- the data packet if M coded data packets are transmitted ( ⁇ ⁇ ⁇ ⁇ ⁇ ), the data receiving end has successfully decoded the K original data packets through the M data packets. In this case, the data transmitting end The remaining NM encoded data packets will be terminated.
- the new data indication may be implemented based on the process identifier or by the process identifier, taking a 3-bit process identifier as an example. If there are two process identifiers currently transmitted, for example, 010, 011, when the data receiving end feedback When the data with the process ID of 010 is successfully decoded, the data sender starts a new round of data transmission and sets the process identifier to 100. It can also be represented by a field other than the process identifier, for example, 1 to 2 bits. When a new round of data is sent, the field is incremented. Taking 1 bit as an example, when the new round of data is sent, the field increment is equivalent to flipping the field. If the field is 0 in the previous round, the new round is sent.
- the field is 1. If the field is 1 in the previous round, the field is 0 when the new round is sent. Take 2 bits as an example. If the field is 00 in the previous round, the field is sent in a new round. Set to 01, this field is set to 10 in the next round of transmission, then down to 11 and then to 00. Thus, if the receiving end has successfully decoded the data packet with the field 00, the data receiving end receives the data with the field set to 01 indicating that a new round of data transmission has started, and the data receiving end should successfully decode the field with 00. Clear the buffer after the data packet, or clear the buffer of the data with the previous field 00 when receiving a new round of data with field 01, and start to buffer a new round of data; or,
- the method of the embodiment of the present invention further includes: the data receiving end feeding back to the data sending end that the serial number of the packet has been successfully received, and the packet is not successfully received or received; the data sending end is based on the feedback information. Determine if the data receiver has successfully obtained the original data packet, if If it is determined to be successful, the transmission of the data related to the original data packet obtained by the decoding in the encoded data packet is terminated, and a new round of transmission of the original data is started, and the receiving end is sent new data; otherwise The data sender continues to transmit the current data.
- the combination of supporting multi-process transmission and the above feedback effectively improves the transmission efficiency and reduces the transmission overhead.
- the encoded data packet such as PDCP or RLC PDU
- the feedback of the data receiving end also takes time.
- the data transmitting end continues to transmit the encoded data packet with the process 01, the data that may continue to be transmitted is redundant or unnecessary, and if nothing is sent only waiting for the underlying transmission and the data receiving end feedback, it is possible The transmission opportunity during this time is wasted, and the link utilization and throughput are reduced.
- a better method is to send data of the new process (process 10) during this time until receiving the data receiving end. For example, if the data receiving end feeds back the data packet of the successful decoding process 01, the transmitting end can clear the subsequent data packet of the process 01. If the transmission failure report of the underlying link is received or the transmission link status is abnormal, the transmission continues to be transmitted. Process 01 encodes packets to provide more encoded packets for reception Decoding. This not only makes full use of the link bandwidth, but also maintains a small transmission overhead.
- the data is flexibly implemented, and the data is flexibly implemented.
- the subsequent data packets are distributed, the combined configuration information is further considered, and the resources provided by each link are utilized efficiently for the user data transmission service, thereby reducing the transmission delay.
- FIG. 4 is a schematic diagram of a wireless multi-path transmission method according to a first embodiment of the present invention.
- the first embodiment takes downlink data transmission in a dual connectivity architecture as an example, and in FIG. 4, original data.
- the package is distinguished by different serial numbers such as 1, 2, 3, 4, and 5.
- the redundant packets are represented by small squares of shadows.
- the MeNB receives the user data through the S1-U interface and performs FEC encoding before the layer 2 distribution.
- the uncoded 5 is input with a 1/2 code rate.
- Packets output 10 packets.
- the packet header is carried, and the sequence number of the data packet is carried in the packet header, and is used for decoding to restore the data packet in sequence; or, the packet header carries indication information indicating whether the data packet is encoded, and a sequence number of the data packet.
- some data packets can be forwarded to the SeNB, so that the UE can receive data packets through two paths, namely, the MeNB link and the SeNB link.
- the sequence of the packets arriving on the two links and the number of packets arriving from each link may be different due to different channel conditions of the two links and different scheduling policies of the MeNB/SeNB.
- the UE can always receive enough data packets (possibly the same as the original number of data packets, or more than the original number of data packets). Then, the UE pairs The received packet is decoded and restored to the original packet by sequence number.
- the UE has three data packets from the MeNB, and two data packets are from the SeNB.
- the UE pairs The data packets are decoded to recover the original 5 data packets; or, if the SeNB link transmission fails, such as disconnection, the 5 data packets received by the UE are from the MeNB, as shown in (b) of FIG. And the 5 data packets can recover the original 5 data packets; or, if the MeNB link transmission fails, the 5 redundant packets received by the UE are from the SeNB, as shown in (c) of FIG.
- the UE decodes the redundant packet and recovers the original 5 data packets.
- the UE may feed back to the data transmitting end (MeNB and/or SeNB) to notify the data transmitting end to terminate the transmission of the data related to the original data packet obtained by the decoding in the encoded data packet. In this way, the data sender can continue the subsequent transmission work.
- the data transmitting end MeNB and/or SeNB
- the method further includes: carrying, in the packet header of the encoded data packet, process identification information (process ID) indicating the data transmission process in the packet header of the encoded data packet.
- process ID process identification information
- encoding/decoding can be performed at the PDCP layer, specifically including: the data sending end performs FEC packet encoding before adding the PDCP header, for example, performing packet encoding after performing PDCP layer header compression, or after encrypting Carry out packet coding.
- the number of encrypted packets is not increased, and the computational complexity is reduced.
- the encoding is followed by a packet header, which carries the sequence number of the packet, or the sequence number of the packet and an indication of whether the encoding is performed. Process ID.
- the 12-bit SN using the PDCP header indicates the sequence number of the packet
- the reserved bit of the PDCP header indicates the process identifier (1 or 2 or 3 reserved bits of 3 bits can be used to represent 2 or 4 or 8 respectively. Process); or, use 1 bit of the reserved bit to indicate whether to encode the indication information, and 2 bits represent the process identifier, so that no additional header overhead can be added.
- the new field is used to indicate the serial number of the encoded packet (for example, 4 to 6 bits), 1 bit indicates whether the encoding indication is (or whether the original packet/redundant packet), and 2 to 3 bits indicate the process identifier;
- the data receiving end When the data receiving end decodes the PDCP header, it can perform FEC decoding according to the carried information. In the case that the data transmitting end reuses the PDCP related packet header, the data receiving end may feed back the received/unreceived packet sequence number to the data transmitting end through the PDCP control PDU, such as the PDCP status report.
- the PDCP control PDU such as the PDCP status report.
- the data transmitting end After the data transmitting end receives the status report, It can be determined whether the data receiving end successfully solves the original data packet, and if it is determined that the original data packet is successfully decoded, the transmission of the data packet related to the original data packet is stopped (for example, the RLC is no longer delivered to the original data packet)
- the packet-related PDCP PDU may also instruct the RLC layer to discard the RLC SDU associated with the original packet; if it is determined that the original data packet is not successfully decoded, the transmission of the data packet related to the original packet of the process is continued ( It should be noted that, according to the judgment of which packets are needed by the UE to solve the original data packet, the number of the packets that continue to be transmitted is controlled, and even which packets are continuously transmitted.
- the data receiver can feed back a newly defined status report including the sequence number of the coded packet and the process number to implement a feedback function similar to the PDCP status report described above.
- the decoding may be successfully sent to the data sending end in an explicit manner, for example, by using a bit+process identifier (or a new round of the process may be started).
- the transmission in this way, the data sender can stop the transmission of the data packets associated with these original packets.
- Data can be distributed either at the PDCP layer or at the RLC layer.
- the encoding/decoding may be at the RLC layer, preferably, the data packet is an RLC SDU (i.e., PDCP PDU), which is more efficient, and the data is also distributed at the RLC layer.
- RLC SDU i.e., PDCP PDU
- the status reporting mechanism of the RLC layer can be utilized to implement functions similar to the PDCP layer status reporting mechanism. In this way, you also need to add a new field or sub-packet header to indicate the serial number of the encoded packet (say
- the first embodiment takes downlink transmission as an example. In specific implementation, it can also be used in multiple transmissions, including downlink transmission, uplink transmission, relay transmission, D2D transmission, and the like.
- the codec configuration can be performed by the network side.
- the network side notifies the UE of the configured configuration information, and the UE performs data decoding according to the encoded configuration information.
- the network side notifies the UE of the configured configuration information, and the UE performs data encoding according to the encoded configuration information.
- the D2D transmission the network side notifies the UE that performs communication to encode/decode the configuration information of the (UE peer) (which may also be configured by the UE itself, for example, in the case of no network coverage).
- the network side may also adjust the coding configuration according to the state of different transmission links, for example, when the transmission status of the two transmission links is relatively stable, the code rate is lowered, or the transmission condition is unstable. In the case of increasing the code rate and the like.
- Related signaling can be passed through the RRC message or L2's Control element.
- the data transmitting end may further adjust data transmission strategies of different transmission links according to states of different transmission links: for example, when the MeNB link is good, more data packets are transmitted through the MeNB; or When the SeNB link is good, more data packets are transmitted through the SeNB.
- FIG. 5 is a schematic diagram of a wireless multi-path transmission method according to a second embodiment of the present invention.
- the second embodiment takes multi-path data transmission in the handover process as an example.
- the original data packet uses different serial numbers. For example, 1, 2, 3, 4, and 5 are distinguished, and the redundant package is represented by a small square of shadows.
- the source base station receives the user data through the S1-U interface, and performs FEC encoding before the layer 2 distribution, assuming that the uncoded 5 data packets are input with a 5/12 code rate. , output 12 packets.
- the packet header is carried, and the sequence number of the data packet carried in the packet header is used for decoding, and the data packet is restored in order; or, the packet header carries indication information indicating whether the data packet is encoded and the sequence number of the data packet.
- part of the data packets can be forwarded to the target base station (Target eNB), so that the UE can pass through two paths, that is, the source base station link and the target base station chain.
- the road receives the data packet.
- the sequence of arrival of the data packets of the two links to the UE and the arrival from each link The number of packets may be different, but as long as not all links are disconnected, the UE can always receive enough packets (may be the same as the original number of packets, or more than the original) The number of packets is), then the UE decodes the received data packet and restores it to the original data packet according to the sequence number.
- the UE may feed back to the data sending end (the source base station and/or the target base station) to notify the data sending end to terminate the transmission of the remaining data in the encoded data packet, which is related to the original data packet obtained by decoding.
- the data may be fed back to the data sending end (the source base station and/or the target base station) to notify the data sending end to terminate the transmission of the remaining data in the encoded data packet, which is related to the original data packet obtained by decoding. The data.
- process identification information for indicating the data transmission process is carried in the header of the encoded data packet, and details are not described herein again.
- the second embodiment may be encoded/decoded in the PDCP layer, or may be encoded/decoded in the RLC layer, and details are not described herein again.
- the network side can also adjust the coded configuration according to the state of different transmission links.
- the specific implementation will not be described here.
- the data sender can adjust the data distribution strategy of different transmission links according to the status of different transmission links.
- the specific implementation will not be described here.
- FIG. 6 is a schematic diagram of a method for transmitting a wireless multi-path according to a third embodiment of the present invention.
- the third embodiment uses downlink data transmission in an LTE and WLAN (WIFI) joint transmission architecture as an example.
- the original data packet is distinguished by different serial numbers such as 1, 2, 3, 4, and 5.
- the redundant packet is represented by a small square of shadows.
- encoding/decoding is performed at the RLC layer, assuming that the LTE base station passes the S1-U interface.
- the user data is received and FEC encoding is performed before the layer 2 is distributed.
- FEC encoding is performed before the layer 2 is distributed.
- the packet header is carried, and the sequence number of the data packet is carried in the packet header, and is used for decoding to restore the data packet in sequence; or, the packet header carries indication information indicating whether the data packet is encoded, and a sequence number of the data packet.
- some data packets can be forwarded to the WLAN AP, so that the UE can receive data packets through two paths, namely, an LTE link and a WLAN link. Due to the different backhaul delays of the two links, different channel conditions, and different scheduling/resource competition mechanisms, the sequence of the packets arriving on the two links and the number of packets arriving from each link may be They are all different, but as long as not all links are disconnected, the UE can always receive enough packets (may be the same as the original number of packets, or more than the original number of packets) Then, the UE decodes the received data packet and restores the original data packet according to the serial number.
- the UE may have one data packet from the LTE base station, and five data packets from the WLAN (if the WLAN link is better), for example. Or, as shown in (b) of FIG. 6, the UE may have three data packet examples LTE, and two data packets are from the WLAN (if the LTE link is better); the UE decodes these data packets to recover the original five data pack. Assuming that the LTE link fails as if it is disconnected, as shown in (c) of FIG.
- the UE may feed back to the data sending end (LTE eNB and/or WLAN AP) to notify the data sending end to terminate the transmission of the remaining data packet, which is related to the original data packet obtained by decoding.
- the data may be fed back to the data sending end (LTE eNB and/or WLAN AP) to notify the data sending end to terminate the transmission of the remaining data packet, which is related to the original data packet obtained by decoding.
- the data may feed back to the data sending end (LTE eNB and/or WLAN AP) to notify the data sending end to terminate the transmission of the remaining data packet, which is related to the original data packet obtained by decoding.
- the data LTE eNB and/or WLAN AP
- process identification information for indicating the data transmission process is carried in the header of the encoded data packet, and details are not described herein again.
- the third embodiment can be edited/decoded at the RLC layer or edited/decoded at the PDCP layer, and details are not described herein again.
- the network side can also adjust the state according to the state of different transmission links. Code configuration. The specific implementation will not be described here.
- the data sender can adjust the data distribution strategy of different transmission links according to the status of different transmission links.
- the specific implementation will not be described here.
- FIG. 7 is a schematic diagram of a wireless multi-path transmission method according to a fourth embodiment of the present invention.
- the fourth embodiment takes downlink data transmission in a macro station and a relay dual connectivity architecture as an example.
- the original data packet is distinguished by different serial numbers such as 1, 2, 3, 4, and 5.
- the redundant packet is represented by a small square of shadow.
- the primary base station receives the user data through the SI-U interface, and performs FEC encoding before layer 2 distribution, assuming that the uncoded 5 is input with a 5/12 code rate. Packets, output 12 packets.
- the packet header is carried, and the sequence number of the data packet is carried in the packet header, and is used for decoding to restore the data packet in sequence; or, the packet header carries indication information indicating whether the data packet is encoded and the sequence number of the data packet.
- part of the encoded 12 data packets can be forwarded to a relay node (RN, Relay Node), so that the UE can pass through two paths, namely, a DeNB link and a relay node.
- the link receives the packet.
- the sequence of the packets arriving on the two links and the number of packets arriving from each link may be different due to different delays of the two links, different channel conditions, and different scheduling policies.
- the UE can always receive enough data packets (possibly the same as the original number of data packets, or more than the original number of data packets). Then, the UE pairs The received data packet is decoded and restored to the original data packet according to the serial number.
- the UE may feed back to the data transmitting end (DeNB and/or RN) to notify the data sending end to terminate the transmission of the data related to the original data packet obtained by decoding in the encoded data packet.
- the process identifier information (rocess ID) for indicating the data transmission process is carried in the packet header of the encoded data packet, and details are not described herein again.
- the fourth embodiment can be edited/decoded in the RLC layer or edited/decoded in the PDCP layer, and details are not described herein again.
- the network side can also adjust the coded configuration according to the state of different transmission links.
- the specific implementation will not be described here.
- the data sender can adjust the data distribution strategy of different transmission links according to the status of different transmission links.
- the specific implementation will not be described here.
- FIG. 8 is a schematic structural diagram of a wireless multi-path transmission system according to an embodiment of the present invention, as shown in FIG. 8, including one or more data transmitting devices 81, and a data receiving device 82;
- One of the data transmitting devices 81 is configured to: encode a plurality of original data packets, and send the encoded data packets to the data receiving end device through different transmission links of itself and one or more other data transmitting devices; wherein, the encoding The number of subsequent data packets is greater than the number of original data packets;
- the data receiving device 82 is configured to: receive data packets from different transmission paths, and decode to obtain original data packets.
- the data transmitting apparatus 81 includes a macro base station and a small base station; or, a source base station and a destination base station; or an LTE base station and a non-LTE base station, where the non-LTE base station may be a WLAN access point or a 3G base station; or, a donor Base station and relay node; or D2D communication device or the like.
- the data receiving apparatus that encodes the plurality of original data packets may be any one of the above, and the base station that is another transmission link may be one of the above, or may be one or more of the above, or other corresponding types. One or more of them.
- the data sending device 81 includes at least a pre-processing module 811 and a distribution module 812.
- the pre-processing module 811 is configured to: encode a plurality of original data packets, and output the encoded data packets to the distribution module;
- the distribution module 812 is configured to: determine a transmission link for transmitting the encoded data packet, and transmit the encoded data packet to the data receiving end device through the determined transmission link.
- the pre-processing module is further configured to: perform PDCP header compression on the data packet; and further perform PDCP layer encryption on the data packet.
- the distribution module 812 is configured to determine a transmission link for transmitting the encoded data packet according to the following manner: determining according to factors such as coded code rate, and/or link status, and/or link bandwidth.
- the module 821 is configured to: receive data packets from different transmission paths, and decode to obtain original data packets.
- the merging module 821 in the data receiving device is further configured to: send feedback success receiving information to the distribution module 812 in the data sending device, and correspondingly, the distributing module 812 of the data sending device 81 is further configured to: terminate the transmission station Data remaining in the encoded data packet, related to the original data packet obtained by decoding;
- the merging module 821 in the data receiving device is further configured to: after receiving the data packet, feed back to the distribution module 812 in the data sending device 81 that the packet has been successfully received, and the packet that was not successfully received or not received
- the distribution module 812 in the data sending device 81 is further configured to: determine, according to the feedback information, whether the data receiving end has successfully acquired the original data packet, and if it is determined to be successful, terminate the transmission of the encoded data packet. The remaining data related to the original packet obtained by decoding.
- the embodiment of the present invention further provides a base station in which the data transmitting apparatus 81 and/or the data receiving apparatus 82 provided by the embodiment of the present invention are provided.
- the base station in the embodiment of the present invention is further configured to notify the encoded configuration information.
- the embodiment of the present invention further provides a terminal in which the data transmitting apparatus 81 and/or the data receiving apparatus 82 of the embodiment of the present invention are provided.
- the terminal in the embodiment of the present invention is further configured to receive encoded configuration information.
- the technical solution of the present application includes the data sending end encoding a plurality of original data packets, and the number of the encoded data packets is greater than the number of the original data packets; the data transmitting end sends the encoded data packets to the data through different transmission links.
- the receiving end receives the data packets from different transmission links and decodes them to obtain the original data packets.
- the data is flexibly implemented, and the encoded data is flexibly implemented.
- the present invention has strong industrial applicability.
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/107,107 US20170041100A1 (en) | 2013-12-26 | 2014-06-19 | Multi-Path Transmission Method and System, Data Transmitting Device, and Data Receiving Device |
JP2016542936A JP2017502595A (ja) | 2013-12-26 | 2014-06-19 | マルチパス伝送方法、システム、データ送信装置及びデータ受信装置 |
EP14873834.7A EP3073661B1 (en) | 2013-12-26 | 2014-06-19 | Multi-path transmission method and system, data transmitting device, and data receiving device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201310729106.0A CN104753627A (zh) | 2013-12-26 | 2013-12-26 | 多路径传输方法、系统及数据发送装置和数据接收装置 |
CN201310729106.0 | 2013-12-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015096419A1 true WO2015096419A1 (zh) | 2015-07-02 |
Family
ID=53477460
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2014/080272 WO2015096419A1 (zh) | 2013-12-26 | 2014-06-19 | 多路径传输方法、系统及数据发送装置和数据接收装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20170041100A1 (zh) |
EP (1) | EP3073661B1 (zh) |
JP (1) | JP2017502595A (zh) |
CN (1) | CN104753627A (zh) |
WO (1) | WO2015096419A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3282748A4 (en) * | 2015-07-14 | 2018-05-02 | Guangdong Oppo Mobile Telecommunications Corp., Ltd | Data transmission method, sending device, and reception device |
Families Citing this family (56)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016152140A1 (ja) * | 2015-03-25 | 2016-09-29 | 日本電気株式会社 | 通信装置、通信システム、制御方法 |
WO2017008266A1 (zh) * | 2015-07-15 | 2017-01-19 | 富士通株式会社 | Lte和wlan聚合的数据处理方法、装置以及通信系统 |
JP6540812B2 (ja) * | 2015-09-11 | 2019-07-10 | 日本電気株式会社 | 無線通信に関するゲートウェイ、方法、システム、及び、プログラム |
GB2542614A (en) * | 2015-09-25 | 2017-03-29 | Tcl Communication Ltd | Systems and methods for reporting data reception status |
CN105897579A (zh) * | 2015-10-21 | 2016-08-24 | 乐卡汽车智能科技(北京)有限公司 | 一种数据传输方法及装置 |
CN106658721B (zh) * | 2015-10-30 | 2020-05-19 | 中兴通讯股份有限公司 | 非授权载波资源处理方法及装置 |
CN105898799B (zh) * | 2015-10-30 | 2019-04-30 | 法法汽车(中国)有限公司 | 基于信号强度的移动网络的多链路带宽分配方法及装置 |
CN105898471A (zh) * | 2015-11-11 | 2016-08-24 | 乐卡汽车智能科技(北京)有限公司 | 一种车载音视频传输方法及系统、车载终端、服务器 |
US10484129B2 (en) | 2016-01-21 | 2019-11-19 | Qualcomm Incorporated | Protocol layer packet coding for transmitter/receiver buffer optimization |
US10021596B2 (en) | 2016-03-30 | 2018-07-10 | Industrial Technology Research Institute | Communication system, communication device, base station and method thereof for D2D communications |
CN107294569B (zh) * | 2016-03-30 | 2022-03-15 | 景略半导体(上海)有限公司 | 多天线传输、单天线发射、及全方位无线接收系统和方法 |
CN107733577B (zh) | 2016-08-11 | 2020-06-02 | 华为技术有限公司 | 进行重传处理的方法和装置 |
CN109565706B (zh) * | 2016-09-29 | 2021-06-22 | 华为技术有限公司 | 一种数据加密的方法及装置 |
CN106559840A (zh) * | 2016-11-16 | 2017-04-05 | 北京邮电大学 | 一种多协议混合通信方法及系统 |
CN108174422B (zh) * | 2016-12-07 | 2021-07-20 | 华为技术有限公司 | 高低频切换方法、配置终端的方法及装置 |
EP3579617B1 (en) * | 2017-02-27 | 2023-08-23 | Huawei Technologies Co., Ltd. | Preventing disorder of packets during handover |
EP4236605A3 (en) | 2017-03-13 | 2024-01-03 | Nokia Technologies Oy | Duplication and rlc operation in new radio access technology |
WO2018170645A1 (zh) * | 2017-03-19 | 2018-09-27 | 南通朗恒通信技术有限公司 | 一种用于上行传输的方法和装置 |
CN108667559B (zh) * | 2017-03-31 | 2020-12-15 | 华为技术有限公司 | 一种通信方法及设备 |
KR102318021B1 (ko) | 2017-04-21 | 2021-10-27 | 삼성전자 주식회사 | 이동 통신 네트워크 내 다중 링크 상에서의 패킷 분배 방법 및 장치 |
CN109362243A (zh) * | 2017-05-27 | 2019-02-19 | 北京小米移动软件有限公司 | 通信网络架构、信令传输方法及装置 |
US10382517B2 (en) * | 2017-06-09 | 2019-08-13 | At&T Intellectual Property I, L.P. | Estimating network data encoding rate |
CN109150425B (zh) | 2017-06-15 | 2020-04-24 | 维沃移动通信有限公司 | 一种数据处理方法、移动终端及计算机可读存储介质 |
ES2928188T3 (es) | 2017-07-25 | 2022-11-16 | Huawei Tech Co Ltd | Dispositivo y método de asignación de recursos del canal |
EP3641399B1 (en) * | 2017-08-10 | 2023-11-22 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Method and device for determining service path |
CN107835138B (zh) * | 2017-09-15 | 2022-01-04 | 南京安讯科技有限责任公司 | 一种tcp通讯连接中报文排序方法 |
CN111386723B (zh) * | 2017-12-05 | 2023-12-12 | Oppo广东移动通信有限公司 | 接入无线接入网的方法、设备和非授权接入点 |
CN110166978B (zh) * | 2018-02-13 | 2020-12-22 | 华为技术有限公司 | 通信方法、第一终端设备和第二终端设备 |
US11418449B2 (en) * | 2018-05-16 | 2022-08-16 | Code On Network Coding, Llc | Multipath coding apparatus and related techniques |
CN110167084B (zh) * | 2018-08-15 | 2021-07-27 | 腾讯科技(深圳)有限公司 | 多通道数据传输方法及装置 |
CN108986829B (zh) * | 2018-09-04 | 2020-12-15 | 北京猿力未来科技有限公司 | 数据发送方法、装置、设备及存储介质 |
TWI775013B (zh) * | 2018-11-25 | 2022-08-21 | 財團法人資訊工業策進會 | 基地台及主通訊裝置 |
CN113950800B (zh) * | 2019-04-12 | 2024-09-27 | 苹果公司 | 分组数据汇聚协议(pdcp)层处的网络编码以提高通信可靠性 |
CN113784838A (zh) | 2019-04-19 | 2021-12-10 | 信越聚合物株式会社 | 树脂膜、高频电路基板及其制造方法 |
JP7194647B2 (ja) | 2019-06-05 | 2022-12-22 | 本田技研工業株式会社 | 制御装置、プログラム、及び制御方法 |
CN110535743B (zh) * | 2019-08-19 | 2022-04-26 | 厦门亿联网络技术股份有限公司 | 一种数据包的处理方法、装置、存储介质及电子装置 |
US11909524B2 (en) * | 2019-10-22 | 2024-02-20 | Qualcomm Incorporated | Coded radio link control retransmission |
US20210297180A1 (en) * | 2020-03-20 | 2021-09-23 | Jianglei Ma | Methods and systems for network coding using cross-packet check blocks |
JP2021150919A (ja) | 2020-03-23 | 2021-09-27 | ソニーグループ株式会社 | 通信装置及び通信方法 |
CN111385062B (zh) * | 2020-03-25 | 2022-05-20 | 京信网络系统股份有限公司 | 基于wdm的数据传输方法、装置、系统及存储介质 |
US20230188253A1 (en) * | 2020-05-25 | 2023-06-15 | Sony Group Corporation | Information processing device, information processing system, and communication method |
WO2021241345A1 (ja) * | 2020-05-27 | 2021-12-02 | ソニーグループ株式会社 | 情報処理装置、通信システム及び情報処理方法 |
WO2022016501A1 (en) * | 2020-07-24 | 2022-01-27 | Qualcomm Incorporated | Outer coding at a packet data convergence protocol layer |
US20230269026A1 (en) * | 2020-07-24 | 2023-08-24 | Qualcomm Incorporated | Rateless coding at layer two protocol layer |
CN112004144B (zh) * | 2020-08-14 | 2022-09-02 | 西安微嗨互动信息科技有限公司 | 一种基于多链路聚合技术的视频采集、编码及分发加速的方法 |
CN112153693B (zh) * | 2020-09-23 | 2024-05-10 | 南京邮电大学 | 一种基于随机线性网络编码的双路径传输方法 |
CN112954701B (zh) * | 2021-01-28 | 2023-06-02 | 沈阳工程学院 | 基于矩阵计算的异构工业无线网络共存方法 |
WO2022209257A1 (ja) * | 2021-03-31 | 2022-10-06 | ソニーグループ株式会社 | 通信装置、通信方法、及び通信システム |
CN115278769A (zh) * | 2021-04-30 | 2022-11-01 | 华为技术有限公司 | 数据传输方法、装置、系统及可读存储介质 |
CN113364559B (zh) * | 2021-06-30 | 2022-08-12 | 清华大学 | 一种面向多路径的数据安全传输方法、设备和系统 |
CN115694719A (zh) * | 2021-07-28 | 2023-02-03 | 华为技术有限公司 | 一种切换场景的数据转发方法及装置 |
CN113573341B (zh) * | 2021-09-23 | 2021-12-14 | 成都极米科技股份有限公司 | 协商业务与链路映射配置的方法、装置、设备及存储介质 |
CN114142971B (zh) * | 2021-11-29 | 2024-08-16 | 山东恒创智控科技有限公司 | 一种基于5g的机器人通信系统、方法及计算机 |
CN114745751B (zh) * | 2022-04-15 | 2023-11-21 | 中国电信股份有限公司 | 数据传输方法及装置、电子设备和存储介质 |
CN115580379B (zh) * | 2022-10-24 | 2023-05-16 | 北京东方正龙数字技术有限公司 | 一种多链路网络传输方法及系统 |
CN116633871A (zh) * | 2023-05-10 | 2023-08-22 | 北京国际云转播科技有限公司 | 多链路数据流实时传输方法、传输装置、存储介质及系统 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1173087A (zh) * | 1996-07-19 | 1998-02-11 | Ntt移动通信网株式会社 | 数据传输设备 |
CN101009663A (zh) * | 2007-01-19 | 2007-08-01 | 深圳市深信服电子科技有限公司 | 通过冗余提高数据传输速度的方法 |
CN101867937A (zh) * | 2009-04-14 | 2010-10-20 | 中兴通讯股份有限公司 | 基于恒定调度的混合自动重传实现方法 |
CN101938334A (zh) * | 2010-09-21 | 2011-01-05 | 上海大学 | 随机网络编码和自动重传请求联合的自适应差错控制方法 |
CN102325009A (zh) * | 2011-09-13 | 2012-01-18 | 北京邮电大学 | 一种基于前向纠错的网络编码组播数据流可靠传输方法 |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8254935B2 (en) * | 2002-09-24 | 2012-08-28 | Fujitsu Limited | Packet transferring/transmitting method and mobile communication system |
US8694869B2 (en) * | 2003-08-21 | 2014-04-08 | QUALCIMM Incorporated | Methods for forward error correction coding above a radio link control layer and related apparatus |
US7318187B2 (en) * | 2003-08-21 | 2008-01-08 | Qualcomm Incorporated | Outer coding methods for broadcast/multicast content and related apparatus |
US20050059396A1 (en) * | 2003-09-09 | 2005-03-17 | Chuah Mooi Choo | Communications protocol between a gateway and an access point |
PL2074762T3 (pl) * | 2006-09-26 | 2015-08-31 | Liveu Ltd | System zdalnej transmisji |
EP2023523B1 (en) * | 2007-08-07 | 2017-02-15 | Samsung Electronics Co., Ltd. | Apparatus and method for transmitting and receiving packets in a mobile communication system supporting hybrid automatic repeat request |
JP2009152864A (ja) * | 2007-12-20 | 2009-07-09 | Nippon Telegr & Teleph Corp <Ntt> | 送信装置および受信装置およびデータ伝送方法 |
US20100182947A1 (en) * | 2008-11-26 | 2010-07-22 | Je-Hong Jong | Method and system of providing link adaptation for maximizing throughput in mobile satellite systems |
CN102055572B (zh) * | 2009-11-06 | 2015-06-03 | 中兴通讯股份有限公司 | 数据重传方法及装置 |
SG185075A1 (en) * | 2010-04-29 | 2012-12-28 | On Ramp Wireless Inc | Forward error correction media access control system |
JP5575236B2 (ja) * | 2010-06-08 | 2014-08-20 | 三菱電機株式会社 | 無線通信システムおよび端末装置 |
US20130064198A1 (en) * | 2011-09-14 | 2013-03-14 | Qualcomm Incorporated | Multipath transport tunnel over multiple air interfaces connecting wireless stations |
US9537759B2 (en) * | 2012-01-31 | 2017-01-03 | Massachusetts Institute Of Technology | Multi-path data transfer using network coding |
JP2013197944A (ja) * | 2012-03-21 | 2013-09-30 | Ntt Docomo Inc | 無線基地局及び移動局 |
KR102057868B1 (ko) * | 2012-08-01 | 2019-12-20 | 엘지전자 주식회사 | 제어 정보를 시그널링 하는 방법 및 이를 위한 장치 |
US9071393B2 (en) * | 2013-01-03 | 2015-06-30 | Broadcom Corporation | Hitless modulation changes in double capacity links using adaptive coding modulation (ACM) |
DK3217719T3 (da) * | 2013-01-18 | 2019-05-20 | Ericsson Telefon Ab L M | Tilpasning af et mobilnetværk |
EP2782409A1 (en) * | 2013-03-20 | 2014-09-24 | Panasonic Intellectual Property Corporation of America | Deterministic UE behaviour for CSI/SRS Reporting during DRX |
TW201501496A (zh) * | 2013-06-17 | 2015-01-01 | Quanta Comp Inc | 視訊編解碼系統及視訊流傳輸方法 |
US20160249353A1 (en) * | 2013-10-18 | 2016-08-25 | Nec Corporation | System and method for network control |
-
2013
- 2013-12-26 CN CN201310729106.0A patent/CN104753627A/zh active Pending
-
2014
- 2014-06-19 US US15/107,107 patent/US20170041100A1/en not_active Abandoned
- 2014-06-19 JP JP2016542936A patent/JP2017502595A/ja active Pending
- 2014-06-19 WO PCT/CN2014/080272 patent/WO2015096419A1/zh active Application Filing
- 2014-06-19 EP EP14873834.7A patent/EP3073661B1/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1173087A (zh) * | 1996-07-19 | 1998-02-11 | Ntt移动通信网株式会社 | 数据传输设备 |
CN101009663A (zh) * | 2007-01-19 | 2007-08-01 | 深圳市深信服电子科技有限公司 | 通过冗余提高数据传输速度的方法 |
CN101867937A (zh) * | 2009-04-14 | 2010-10-20 | 中兴通讯股份有限公司 | 基于恒定调度的混合自动重传实现方法 |
CN101938334A (zh) * | 2010-09-21 | 2011-01-05 | 上海大学 | 随机网络编码和自动重传请求联合的自适应差错控制方法 |
CN102325009A (zh) * | 2011-09-13 | 2012-01-18 | 北京邮电大学 | 一种基于前向纠错的网络编码组播数据流可靠传输方法 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3282748A4 (en) * | 2015-07-14 | 2018-05-02 | Guangdong Oppo Mobile Telecommunications Corp., Ltd | Data transmission method, sending device, and reception device |
JP2018521568A (ja) * | 2015-07-14 | 2018-08-02 | グァンドン オッポ モバイル テレコミュニケーションズ コーポレーション リミテッド | データ伝送方法、送信装置及び受信装置 |
US10405230B2 (en) | 2015-07-14 | 2019-09-03 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Data transmission method, sending device and receiving device |
EP3684101A1 (en) * | 2015-07-14 | 2020-07-22 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Data transmission method, sending device and receiving device |
US11240708B2 (en) | 2015-07-14 | 2022-02-01 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Data transmission method, sending device and receiving device |
Also Published As
Publication number | Publication date |
---|---|
EP3073661A1 (en) | 2016-09-28 |
EP3073661A4 (en) | 2016-11-30 |
CN104753627A (zh) | 2015-07-01 |
JP2017502595A (ja) | 2017-01-19 |
EP3073661B1 (en) | 2021-02-17 |
US20170041100A1 (en) | 2017-02-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2015096419A1 (zh) | 多路径传输方法、系统及数据发送装置和数据接收装置 | |
US10440767B2 (en) | User terminal and radio communication apparatus | |
CN114885375B (zh) | 无线通信系统中管理用户平面操作的方法和装置 | |
CN107113291B (zh) | 演进的数据压缩方案信令 | |
JP7046071B2 (ja) | ユーザ機器、方法および第1の基地局 | |
US9622132B2 (en) | Switching between cellular and license-exempt (shared) bands | |
CN111263433B (zh) | 用于在设备到设备通信中的时间同步的方法及装置 | |
JP5529955B2 (ja) | 無線通信システムにおけるリレーノード使用方法 | |
EP2712253B1 (en) | Wireless broadband communication method, device, and system | |
CN110583006B (zh) | 发送数据单元的方法和装置 | |
JP2020511842A (ja) | ネットワーク接続の復旧方法、装置及び通信システム | |
EP4109961A1 (en) | Data transmission method and apparatus, and device | |
CN101888675A (zh) | 一种长期演进系统中跨基站切换方法及系统 | |
WO2014180373A1 (zh) | 数据包分流传输的方法、系统和计算机存储介质 | |
JP6643472B2 (ja) | スプリット・ベアラを受信するユーザ装置からのフロー制御フィードバック | |
JP7235935B2 (ja) | 通信制御方法、ユーザ装置、プロセッサ及び基地局 | |
WO2015196324A1 (zh) | 数据传输的方法、集中处理节点、网关及基站 | |
JP7301065B2 (ja) | 無線通信方法及び装置 | |
JP2023100957A (ja) | 通信制御方法、ユーザ装置及びプロセッサ | |
WO2022006724A1 (zh) | 用于关闭harq重传的处理方法、终端设备和网络设备 | |
US20210298123A1 (en) | Wireless communication system, transmission and reception method, recording medium, wireless communication base station device, control circuit, and control method | |
WO2022021021A1 (zh) | 无线通信方法、终端设备和网络设备 | |
WO2024020859A1 (zh) | 中继链路之间切换的方法及设备 | |
WO2022204999A1 (zh) | 存活时间的处理方法和终端设备 | |
WO2022041125A1 (zh) | 数据传输方法、网络设备和终端设备 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 14873834 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 15107107 Country of ref document: US |
|
REEP | Request for entry into the european phase |
Ref document number: 2014873834 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2014873834 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 2016542936 Country of ref document: JP Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |