WO2013113238A1 - Procédé d'amélioration de couverture en liaison montante de données voip, terminal et station de base - Google Patents

Procédé d'amélioration de couverture en liaison montante de données voip, terminal et station de base Download PDF

Info

Publication number
WO2013113238A1
WO2013113238A1 PCT/CN2012/087217 CN2012087217W WO2013113238A1 WO 2013113238 A1 WO2013113238 A1 WO 2013113238A1 CN 2012087217 W CN2012087217 W CN 2012087217W WO 2013113238 A1 WO2013113238 A1 WO 2013113238A1
Authority
WO
WIPO (PCT)
Prior art keywords
voip data
target
air interface
header
logical channel
Prior art date
Application number
PCT/CN2012/087217
Other languages
English (en)
Chinese (zh)
Inventor
曾清海
刘海
李元杰
余承宇
Original Assignee
华为技术有限公司
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.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2013113238A1 publication Critical patent/WO2013113238A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/18—Information format or content conversion, e.g. adaptation by the network of the transmitted or received information for the purpose of wireless delivery to users or terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/80—Responding to QoS
    • 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
    • H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method, a terminal, and a base station for enhancing uplink coverage of VoIP (voice over Internet Protocol) data.
  • VoIP voice over Internet Protocol
  • LTE Long Term Evolution
  • UMTS Universal Mobile
  • the LTE system in order to alleviate the voice coverage hole problem in the LTE system, the LTE system introduces a TTI bundling (Transmission Time Interval Bundling) technology and a ROHC (Root Head Head Compression) technology.
  • TTI bundling Transmission Time Interval Bundling
  • ROHC Root Head Head Compression
  • the embodiments of the present invention provide a method, a terminal, and a base station for enhancing uplink coverage of VoIP data, which can significantly enhance uplink coverage of VoIP data.
  • the following technical solutions are used in the embodiments of the present invention:
  • a method for enhancing uplink coverage of VoIP data including:
  • the air interface overhead of the VoIP data to be transmitted on the determined logical channel is compressed according to the determined air interface overhead compression manner to obtain target VoIP data, according to the determined target TB size;
  • a method for enhancing uplink coverage of VoIP data including:
  • the air interface cost of the target VoIP data is compressed by the terminal according to the target TB size determined by the terminal, and according to the air interface overhead determined by the terminal;
  • a terminal comprising:
  • a determining unit configured to determine a logical channel, an air interface overhead compression mode, and a target transport block size TB size of the VoIP data to be transmitted;
  • a processing unit configured to compress, according to the target TB size determined by the determining unit, the air interface overhead of the VoIP data to be transmitted on the logical channel determined by the determining unit according to the determined air interface overhead compression manner to obtain the target VoIP Data;
  • a base station comprising:
  • a receiving unit configured to receive the target VoIP data sent by the terminal, where the air interface cost of the target VoIP data is compressed by the terminal according to the target TB size determined by the terminal, and according to the air interface cost determined by the terminal;
  • a processing unit configured to perform an air interface overhead compression manner according to the target VoIP data
  • the target VoIP data received by the receiving unit is subjected to a restoration process.
  • the method, the terminal, and the base station for enhancing the uplink coverage of the VoIP data provided by the embodiment of the present invention, the terminal compresses the air interface overhead of the VoIP data to be transmitted according to the air interface overhead compression mode determined by the terminal, and enables the target VoIP data after the compression operation to be only
  • the part of the air interface protocol header is included, which reduces the size of the target VoIP data, and improves the uplink successful transmission distance under the same power limitation, thereby effectively solving the uplink coverage hole problem and obviously enhancing the uplink coverage of the VoIP data. Therefore, with the technical solution of the embodiment of the present invention, uplink coverage of VoIP data can be effectively enhanced.
  • FIG. 1 is a flowchart of a method for enhancing uplink coverage of VoIP data according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a method for enhancing uplink coverage of VoIP data according to Embodiment 2 of the present invention
  • FIG. 3 is a flowchart of enhancing VoIP data uplink according to Embodiment 3 of the present invention
  • FIG. 4 is a schematic diagram of compressing a voice frame according to Embodiment 3 of the present invention
  • FIG. 5 is a schematic diagram of compressing a voice frame according to Embodiment 3 of the present invention.
  • FIG. 6 is a schematic diagram of compressing a voice frame according to Embodiment 3 of the present invention.
  • FIG. 7 is a schematic diagram of a terminal in Embodiment 4 of the present invention.
  • FIG. 8 is a schematic diagram of a base station according to Embodiment 5 of the present invention.
  • FIG. 9 is a schematic diagram of a base station according to Embodiment 5 of the present invention.
  • the technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without departing from the inventive scope are the scope of the present invention.
  • the VoIP data may include an RTP (Real-time Transport Protocol) header, a UDP (User Datagram Protocol) header, an IP (Internet Protocol) protocol, and a PDCP ( Packet Data Convergence Protocol (Packet Data Convergence Protocol) header, MAC (Medium Access Control) header, and RLC (Radio Link Control) header.
  • RTP Real-time Transport Protocol
  • UDP User Datagram Protocol
  • IP Internet Protocol
  • PDCP Packet Data Convergence Protocol
  • MAC Medium Access Control
  • RLC Radio Link Control
  • VoIP data includes SID (Silence Information Description) frames and voice frames.
  • SID frame indicates a data frame generated during a non-talk period, and its size is fixed to 7 bytes.
  • the speech frame represents a data frame generated during a normal call, and its size differs depending on its AMR Codec (Adaptive Multi-Rate Codec) mode.
  • AMR Codec Adaptive Multi-Rate Codec
  • the first embodiment of the present invention provides a method for enhancing uplink coverage of VoIP data, including the following steps:
  • Step 11 The terminal determines a logical channel, an air interface overhead compression mode, and a target transmission block size TB size (Transmission Block Size) of the VoIP data to be transmitted.
  • TB size Transmission Block Size
  • the manner in which the terminal determines the logical channel, the air interface overhead compression mode, and the target transport block size TB size of the VoIP data to be transmitted may be:
  • the first base station sends an air interface overhead compression command to the terminal, and the air interface overhead compression command includes a logical channel, an air interface overhead compression mode, and a target transmission of the VoIP data to be transmitted.
  • the indication of the block size TB size the terminal receives the air interface overhead compression command sent by the base station, determines a logical channel for transmitting VoIP data according to the identifier of the logical channel, and determines to transmit the VoIP according to the indication of the air interface overhead compression mode.
  • the base station sends an air interface overhead compression command to the terminal, where the air interface overhead compression command includes an identifier of a logical channel to be transmitted VoIP data, and the terminal receives an air interface overhead compression command sent by the base station, according to the The identification of the logical channel, determining the logical channel of the VoIP data to be transmitted.
  • the terminal determines an air interface overhead compression mode and a target TB size of the VoIP data to be transmitted according to a preset.
  • the logical channel is notified by the base station to the terminal by means of signaling, and the air interface overhead compression mode and the target TB size are preset.
  • the related protocol for transmitting VoIP data is specified, and the terminal determines the air interface overhead compression mode and the target TB size of the VoIP data to be transmitted according to a preset.
  • the base station sends an air interface overhead compression command to the terminal, where the air interface overhead compression command includes an identifier of a logical channel to be transmitted VoIP data, and the terminal receives an air interface overhead compression command sent by the base station, according to the The identification of the logical channel, determining the logical channel of the VoIP data to be transmitted.
  • the terminal determines, according to a preset, an air interface overhead compression mode of the VoIP data to be transmitted; the terminal receives an uplink grant sent by the base station, where the uplink grant carries a logical channel identifier and a TB size; When the logical channel identifier carried in the same is the same as the identifier of the logical channel included in the air interface overhead compression command, the terminal determines the TB size carried by the uplink authorization as the target TB size of the VoIP data to be transmitted. In the third mode, in the logical channel, the air interface overhead compression mode, and the target TB size, the logical channel is notified by the base station to the terminal by means of signaling, and the air interface overhead compression mode is preset, for example.
  • the terminal may be specified by a related protocol for transmitting VoIP data, and the terminal determines to be determined according to a preset setting.
  • the air interface overhead compression mode for transmitting VoIP data, and the target TB size is notified by the base station to the terminal by using an uplink grant.
  • the base station needs to schedule the uplink data transmission of the terminal by using the uplink grant, and specify the physical location and modulation mode of the time-frequency resource for the uplink data transmission of the terminal. Therefore, the base station can target the target by using the uplink authorization.
  • the TB size is notified to the base station. It can be understood that, because the terminal has multiple types of uplink data transmission, the base station needs to send multiple uplink grants within a certain period of time.
  • the base station In order for the terminal to know which uplink grant is the uplink grant for scheduling the transmission of the current VoIP data, the base station carries the logical channel identifier in the uplink grant, and the terminal compares the logical channel identifier and the air interface overhead compression command in the uplink grant.
  • the logical channel identifier if the two are the same, the terminal knows the uplink authorization of the uplink authorization for the transmission of the VoIP data, thereby determining the TB size in the uplink grant as the target TB size of the VoIP data to be transmitted.
  • the base station sends an air interface overhead compression command to the terminal, where the air interface overhead compression command includes an identifier of a logical channel to be transmitted VoIP data and an indication of the air interface overhead compression mode, where the terminal receives the base station
  • the air interface overhead compression command is sent, determining a logical channel of the VoIP data to be transmitted according to the identifier of the logical channel, and determining an air interface overhead compression mode of the VoIP data to be transmitted according to the indication of the air interface overhead compression mode;
  • An uplink grant sent by the base station where the uplink grant carries a logical channel identifier and a TB size, and when the logical channel identifier carried in the uplink grant is the same as the identifier of the logical channel included in the air interface overhead command,
  • the TB size carried by the uplink grant is determined as the target TB size of the VoIP data to be transmitted.
  • This method is similar to the third method. The difference is that the air interface overhead compression mode is notified by the base station to the terminal through the air interface
  • the logical channel, the air interface overhead compression mode, or the target TB size of multiple VoIP data transmissions may be the same, that is, any one of the above three parameters may be continuously used by the terminal for a period of time, if When the base station notifies the above parameters by signaling, it can only notify once in a period of time. Before the next signaling arrives, the terminal will use the current signaling pass.
  • the known parameters transmit VoIP data multiple times. Therefore, preferably, the air interface overhead compression command may be high layer signaling such as RRC signaling of the RRC, and the sending frequency is low relative to the uplink grant.
  • the terminal determines the target TB size of the VoIP data to be transmitted through the uplink authorization, and the terminal performs the VoIP data transmission, the uplink sent by the base station is required.
  • Authorized scheduling in order for the terminal to know which uplink grant is the uplink grant for scheduling the transmission of the current VoIP data, the uplink grant may carry at least one of the TB size and the logical channel identifier, and the terminal will have determined
  • the target TB size of the VoIP data is compared with the TB size in the uplink grant, or the terminal compares the logical channel identifier of the current VoIP data that has been determined with the logical channel identifier in the uplink grant, when When the terminals are the same, the terminal can determine that the uplink grant is an uplink grant for scheduling transmission of the current VoIP data, and then the terminal sends the VoIP data under the scheduling of the uplink grant.
  • the uplink grant may be an uplink grant indicated by a PDCCH (Physical Downlink Control Channel).
  • the uplink authorization may also be a semi-static uplink authorization of the configuration.
  • Step 12 The terminal compresses the air interface overhead of the VoIP data to be transmitted on the determined logical channel according to the determined air interface overhead compression manner according to the determined target TB size, to obtain target VoIP data.
  • the manner in which the terminal compresses the VoIP data to be transmitted on the logical channel may be any one of the following methods:
  • Manner 1 The terminal first deletes an RTP header, a UDP header, and an IP header of the VoIP data to be transmitted, and deletes the VoIP data of the RTP header, the UDP header, and the IP header. Encrypting; then, the terminal may only add a PDCP header to the encrypted VoIP data, and perform PDCP layer filling on the VoIP data with the added PDCP header to obtain target VoIP data; or, in practical applications The terminal may also perform PDCP layer filling on the encrypted VoIP data, and then fill the VoIP layer after the PDCP layer. The data is added to the PDCP header to obtain the target VoIP data.
  • Manner 2 The terminal first deletes an RTP header, a UDP header, and an IP header of the VoIP data to be transmitted, and encrypts the VoIP data that is deleted by the RTP header, the UDP header, and the IP header. . And adding a PDCP header to the encrypted VoIP data, performing PDCP layer filling on the VoIP data added to the PDCP header, and adding a media access control MAC header to the PDCP layer-filled VoIP data. Obtaining target VoIP data; or, the terminal may also
  • the terminal may also add a PDCP header to the encrypted VoIP data, add a MAC header to the VoIP data with the added PDCP header, and perform MAC layer filling on the VoIP data of the added MAC header to obtain target VoIP data.
  • the terminal may further add a PDCP header to the encrypted VoIP data, perform MAC layer filling on the VoIP data with the added PDCP header, and add a MAC header to the MAC layer-filled VoIP data to obtain Target VoIP data.
  • the terminal first deletes the RTP header, the UDP header, and the IP header of the VoIP data to be transmitted, and encrypts the VoIP data of the RTP header, the UDP header, and the IP header.
  • the terminal may further perform PDCP layer filling on the encrypted VoIP data, add a PDCP header to the PDCP layer-filled VoIP data, and expand the added PDCP header to obtain target VoIP data.
  • the extending, by the terminal, the added PDCP header includes extending a specified byte to the added PDCP header, and carrying information such as a VoIP data type in the specified byte.
  • the target VoIP data is a MAC PDU (Protocol Data Unit). It can be understood that, for example, if the base station notifies the air interface overhead compression mode in the air interface overhead compression instruction, it can notify an identifier, for example, 1, and the terminal can learn that the air interface overhead compression mode is mode one.
  • MAC PDU Protocol Data Unit
  • Step 13 The terminal sends the target VoIP data to a base station.
  • the terminal sends the target VoIP data to the base station by using at least one uplink subframe, and the base station performs a restoration process on the target VoIP data to obtain the VoIP data to be transmitted before compression.
  • the terminal may continuously send at least one uplink subframe carrying the target VoIP data to the base station, so that the base station performs corresponding restoration and decompression processing according to the manner in which the target VoIP data is compressed to obtain the compression.
  • the VoIP data to be transmitted.
  • the technical solution described in the embodiments of the present invention can be applied to other systems that want to enhance the uplink coverage of the packet domain service, such as WiMax (Worldwide Interoperability for Microwave Access). Wave interconnection access system.
  • the technical solution described in the embodiment of the present invention can also be applied to VoIP data compressed by the ROHC technology.
  • the terminal compresses the VoIP data to be transmitted of the specified logical channel according to the TB size according to the air interface overhead compression scheme, acquires the target VoIP data, and then sends the target VoIP data to the base station, so that the base station will
  • the target VoIP data is subjected to a restoration process to obtain the VoIP data to be transmitted before the compression. Since the target VoIP data after the compression operation only includes a part of the air interface protocol header, the size of the target VoIP data is reduced, and the same power limitation is performed.
  • the uplink successful transmission distance is improved, thereby effectively solving the uplink coverage hole problem and enhancing the uplink coverage of the VoIP data. Therefore, with the terminal of the embodiment of the present invention, uplink coverage of VoIP data is enhanced.
  • the terminal compresses the VoIP data to be compressed according to the TB size according to the air interface overhead compression scheme, obtains the target VoIP data, and sends the target VoIP data to the base station through at least one uplink subframe, so that the base station will The target VoIP data is restored
  • the VoIP data to be compressed is obtained, because the target VoIP data after the compression operation only includes a part of the air interface protocol header, which reduces the size of the target VoIP data, and improves the uplink successful transmission distance under the same power limitation, thereby effectively
  • the problem of uplink coverage holes is solved, and the uplink coverage of VoIP data is enhanced. Therefore, the uplink coverage of the VoIP data is enhanced by using the technical solution of the embodiment of the present invention.
  • the second embodiment of the present invention provides a method for enhancing uplink coverage of VoIP data, including the following steps:
  • Step 21 The base station receives the target VoIP data that is sent by the terminal, and the air interface cost of the target VoIP data is compressed by the terminal according to the target TB size determined by the terminal, and according to the air interface cost determined by the terminal.
  • the base station may receive, by the terminal, at least one uplink subframe that carries the target VoIP data continuously sent by the terminal;
  • Step 22 The base station performs a restoration process on the received target VoIP data according to an air interface overhead compression manner of the target VoIP data.
  • the base station performs a corresponding restoration process on the target VoIP data according to the air interface overhead compression mode of the target VoIP data
  • the restoration process may be any one of the following:
  • the base station may directly The MAC PDU of the target VoIP data is delivered to the RLC layer of the logical channel, and the target VoIP data is reordered according to the lower 5 characters of the PDCP SN (Serial Number), and then according to the indication indicated by the PDCP header.
  • PDCP SN Serial Number
  • the base station When the target VoIP data is the target VoIP data obtained by compressing the VoIP data to be transmitted according to the method 2 in step 12 in the first embodiment, the base station will use the target VoIP.
  • the data generated MAC SDU Service Data Unit
  • the type of the target VoIP data indicated by the header removes the PDCP header and the MAC header in the reordered target VoIP data, and the padding data of the PDCP layer or the padding data of the MAC layer, and the target VoIP after the removal operation is performed.
  • the data is decrypted, and then the RTP header, the UDP header, and the IP header of the decrypted target VoIP data are restored to obtain the VoIP data to be transmitted before the terminal is compressed.
  • the base station may use the target VoIP data
  • the MAC PDU data of the VoIP data is delivered to the RLC layer of the logical channel, and the target VoIP data is reordered according to the lower 5 characters of the PDCP SN, and then the indication according to the extended portion of the PDCP header is removed.
  • the header, the UDP header, and the IP header are used to obtain the VoIP data to be transmitted before the terminal is compressed.
  • the base station sends an air interface overhead compression command that carries at least the identifier of the logical channel to the terminal, and preferentially schedules the uplink grant of the logical channel, so that the terminal compresses the VoIP data to be transmitted on the logical channel.
  • the size of the uplink improves the uplink transmission distance under the same power limitation, thereby effectively solving the uplink coverage hole problem of the terminal and enhancing the uplink coverage of the VoIP data.
  • the uplink coverage of the VoIP data is enhanced by using the technical solution of the embodiment of the present invention.
  • the method before the step 21, that is, before the base station receives the target VoIP data sent by the terminal by using the logical channel, the method further includes:
  • the base station sends an air interface overhead compression command to the terminal, where the air interface cost compression command includes an identifier of the logical channel, an indication of the air interface overhead compression mode, and an indication of the target TB size, so that the terminal is configured according to the terminal
  • the air interface overhead compression instruction determines a logical channel, an air interface overhead compression mode, and a target TB size of the VoIP data to be transmitted.
  • the method before the step 21, that is, before the base station receives the target VoIP data sent by the terminal by using the logical channel, the method further includes:
  • the base station sends an air interface overhead compression instruction to the terminal, where the air interface overhead compression instruction includes an identifier of the logical channel, so that the terminal determines a logical channel to be transmitted VoIP data according to the air interface overhead compression instruction;
  • the method before the step 21, that is, before the base station receives the target VoIP data sent by the terminal by using the logical channel, the method further includes:
  • the base station sends an air interface overhead compression instruction to the terminal, where the air interface cost compression instruction includes an identifier of the logical channel, so that the terminal determines a logical channel of the VoIP data to be transmitted according to the air interface overhead compression instruction;
  • the terminal sends an uplink grant, where the uplink grant carries the same logical channel identifier and TB size as the identifier of the logical channel in the air interface cost compression command, so that the terminal performs the uplink according to the uplink grant.
  • the TB size carried in the authorization is determined as the target TB size of the VoIP data to be transmitted;
  • the method before the step 21, that is, before the base station receives the target VoIP data sent by the terminal by using the logical channel, the method further includes:
  • the base station sends an air interface overhead compression instruction to the terminal, where the air interface cost compression instruction includes an identifier of the logical channel and an indication of the air interface cost compression mode, so that the terminal determines to be determined according to the air interface overhead compression instruction.
  • a logical channel and an air interface overhead compression mode for transmitting VoIP data sending an uplink grant to the terminal, where the uplink grant carries The logical channel in the pin compression command identifies the same logical channel identifier and TB size, so that the terminal determines the TB size carried in the uplink grant as the target TB size of the VoIP data to be transmitted according to the uplink grant.
  • the uplink authorization issued by the base station is required.
  • the scheduling in order for the terminal to know which uplink grant is the uplink grant for scheduling the transmission of the current VoIP data, the uplink grant may carry at least one of the TB size and the logical channel identifier, and the terminal will determine the original
  • the target TB size of the secondary VoIP data is compared with the TB size in the uplink grant, or the terminal compares the logical channel identifier of the current VoIP data that has been determined with the logical channel identifier in the uplink grant, when the two
  • the terminal can determine that the uplink grant is an uplink grant for scheduling the transmission of the current VoIP data, and then the terminal sends the VoIP data under the scheduling of the uplink grant.
  • the uplink grant may be an uplink grant indicated by the PDCCH or a configured semi-static uplink grant, and the air interface overhead compression command is preferably a RRC signaling.
  • Embodiment 3 of the present invention provides a method for enhancing uplink coverage of VoIP data, including the following steps:
  • Step 31 The base station determines the target TB size.
  • the base station may determine an AMR Codec mode according to the pre-acquired voice frame, and then determine a voice frame static load corresponding to the AMR Codec mode, and further according to the voice frame static load.
  • Determine the TB size supported by the air interface For example, when the base station determines that the AMR Codec mode of the pre-acquired speech frame is 7.4 kbps, it can be determined by querying Table 1 that the speech frame static load corresponding to 7.4 kbps is 20 bytes. According to the definition of the existing LTE physical layer protocol TS36.213, the TB size can only be 18 bytes, 22 bytes, 26 bytes, 28 words. One of the sections, 32 bytes and 41 bytes. Therefore, the base station can only select one of the above values that is closest to the voice frame payload and slightly larger than the voice frame payload, as the TB size. Therefore, the base station determines that the target TB size is 22 bytes.
  • Step 32 The base station sends an air interface overhead compression command and an uplink authorization to the terminal.
  • the air interface overhead compression command includes an identifier of the logical channel, an indication of the air interface cost compression mode, and an indication of the target TB size, where the uplink authorization carries an indication indicated in the air interface overhead compression instruction.
  • the TB size with the same target TB size.
  • the terminal may perform the comparison according to the TB size in the uplink authorization and the target TB size indicated in the air interface overhead compression instruction, so as to determine that the uplink authorization is an uplink authorization for scheduling the current VoIP data transmission.
  • the air interface overhead compression command may be RRC signaling, and the uplink authorization may be an uplink grant indicated by the PDCCH or a configured semi-static uplink grant.
  • Step 33 The identifier of the logical channel of the terminal determines a logical channel of the VoIP data to be transmitted, and determines an air interface overhead compression mode of the VoIP data to be transmitted according to the indication of the air interface overhead compression mode in the air interface overhead compression instruction, and Determining a target TB size of the VoIP data to be transmitted according to the indication of the target TB size in the air interface overhead compression instruction.
  • how the terminal determines the logical channel, the air interface overhead compression mode, and the target transport block size TB size of the VoIP data to be transmitted is not limited, and may have other manners, as described in the foregoing. I won't go into details here.
  • Step 34 The terminal sends the determined logical letter according to the determined target TB size.
  • the air interface overhead of the VoIP data to be transmitted on the track is compressed according to the determined air interface overhead compression manner to obtain the target VoIP data.
  • the terminal may perform a corresponding compression operation according to the type of the VoIP data to be transmitted.
  • the terminal when the VoIP data to be transmitted is a voice frame, the terminal first removes an RTP header, a UDP header, and an IP header of the voice frame, and then encrypts the voice frame after the removal operation. And add only 1 byte of the PDCP header to the encrypted speech frame. Since the voice frame size is 20 bytes, the terminal only needs to increase the 1-byte PDCP layer Padding (filling data) to ensure that the target TB size is 22 bytes.
  • the terminal When the VoIP data to be transmitted is a SID frame, the terminal first removes an RTP 4 header, a header, an IP header of the SID frame, and then encrypts the SID frame after the removal operation, and Add only 1 byte of the PDCP header to the encrypted SID frame. Since the size of the SID frame is 7 bytes, the terminal only needs to increase the PDCP layer Padding of 14 bytes to ensure that the target TB size is 22 bytes.
  • the order in which the PDCP header is added to the terminal and the PDCP layer is filled is not limited.
  • the PDCP header includes an lbit D/C domain and a 7-bit PDCP SN domain.
  • the D/C field indicates the type of the VoIP data to be transmitted. Specifically, the D/C domain may determine whether the VoIP data to be transmitted is a voice frame or a SID frame. In addition, when the D/C domain is extended to 2 bits, the PDCP SN domain may be compressed to 6 bits to ensure that the PDCP header occupies 1 byte.
  • the target VoIP data is a MAC PDU.
  • Step 35 The terminal sends the target VoIP data to the base station by using at least one uplink subframe according to the scheduling of the uplink grant sent by the base station.
  • Step 36 The base station receives the target VoIP data, and performs the restoration processing on the target VoIP data according to the air interface overhead compression manner of the target VoIP data to obtain the VoIP data to be transmitted before the terminal is compressed.
  • the MAC layer of the base station since the terminal does not add a MAC header when compressing the VoIP data to be transmitted, the MAC layer of the base station directly delivers the received MAC PDU to the RLC layer of the logical channel without performing Demultiplexing. (demultiplexing) processing.
  • the base station can reorder the target VoIP data by using the lower 5 characters in the PDCP SN.
  • the base station removes Padding and the PDCP header of the PDCP layer in the reordered target VoIP data according to the type of the target VoIP data indicated by the D/C field of the PDCP header. Specifically, when the target VoIP data is a voice frame, the base station removes 1 byte Padding and the PDCP header from the reordered target VoIP data; when the target VoIP data is a SID frame, The base station removes 14 bytes of Padding and the PDCP header from the reordered target VoIP data.
  • the base station decrypts the target VoIP data after the removal operation, and then restores the decrypted target according to the previously received or the last restored uplink VoIP packet including the RTP header, the UDP header, and the IP header.
  • the RTP header, the UDP header, and the IP header of the VoIP data are used to obtain the VoIP data to be transmitted before the terminal is compressed.
  • the terminal compresses the VoIP data to be transmitted of the specified logical channel according to the TB size according to the air interface overhead compression scheme, obtains the target VoIP data, and sends the target VoIP data to the at least one uplink subframe.
  • the base station is configured to perform the restoration processing on the target VoIP data to obtain the VoIP data to be transmitted. Since the target VoIP data after the compression operation only includes a part of the air interface protocol header, the size of the target VoIP data is reduced. Under the same power limitation, the uplink successful transmission distance is improved, thereby effectively solving the uplink coverage hole problem and enhancing the uplink coverage of VoIP data. Therefore, the uplink coverage of the VoIP data is enhanced by using the technical solution of the embodiment of the present invention.
  • the terminal uses different air interface overhead compression modes. In this case, in step 34, the terminal may perform according to the type of the VoIP data to be transmitted. The corresponding compression operation.
  • the terminal when the VoIP data to be transmitted is a voice frame, the terminal first removes an RTP header, a UDP header, and an IP header of the voice frame, and then encrypts the voice frame after the removal operation. And add only 1 byte of the PDCP header and 1 byte of the MAC header to the encrypted speech frame. Since the size of the voice frame is 20 bytes, the terminal does not increase the PDCP layer Padding or the MAC layer Padding to ensure that the target TB size is 22 bytes.
  • the terminal When the VoIP data to be transmitted is a SID frame, the terminal first removes an RTP 4 header, a header, an IP header of the SID frame, and then encrypts the SID frame after the removal operation, and Only one byte of the PDCP header and one byte of the MAC header are added to the encrypted SID frame. Since the size of the SID frame is 7 bytes, the terminal only adds 13 bytes of the PDCP layer Padding or 13 bytes of the MAC layer Padding to ensure that the target TB size is 22 bytes. In an actual application, the terminal may perform the operation of the PDCP layer before performing the operation of the MAC layer.
  • the terminal may first add a 1-byte PDCP header, and then perform 13-byte PDCP layer padding, and then add a 1-byte MAC header; or, the terminal may also perform 13-byte first.
  • the PDCP layer is padded, and the PDCP header of 1 byte is further added, and then the MAC header of 1 byte is added; or, the terminal may also add only a 1-byte PDCP header, and then add a 1-byte MAC header, and then The 13-byte MAC layer padding is performed; or the terminal may also add only a 1-byte PDCP header, then perform 13-byte MAC layer padding, and then add 1 byte of the MAC header.
  • the step of adding the PDCP header to the terminal and performing the PDCP layer filling is not limited in this embodiment.
  • the PDCP header includes an lbit D/C domain and a 7-bit PDCP SN domain.
  • the D/C field indicates the type of the VoIP data to be transmitted.
  • the PDCP SN field can be compressed to 6 bits to ensure that the PDCP header occupies 1 byte.
  • the target VoIP data is a MAC PDU.
  • step 36 referring to FIG. 5, the terminal is connected to the VoIP to be transmitted.
  • the MAC header is added, so the base station MAC delivers the MAC SDU generated by the target VoIP data to the RLC layer of the logical channel indicated by the MAC header.
  • the base station can reorder the MAC SDU by using the lower 5 characters in the PDCP SN.
  • the base station removes the MAC header and the PDCP header of the reordered target VoIP data according to the type of the target VoIP data indicated by the D/C field of the PDCP header, and the MAC layer. Fill data or padding data of the PDCP layer.
  • the target VoIP data is a voice frame
  • the base station removes the MAC header and the PDCP header only for the reordered target VoIP data.
  • the target VoIP data is a SID frame
  • the base station removes the MAC header and the PDCP from the reordered target VoIP data.
  • the base station removes the MAC header from the reordered target VoIP data, 13 The padding of the MAC layer of bytes, and the PDCP header.
  • the base station decrypts the target VoIP data after the removal operation, and then restores the decrypted target according to the previously received or the last restored uplink VoIP packet including the RTP header, the UDP header, and the IP header.
  • the RTP header, the UDP header, and the IP header of the VoIP data are used to obtain the VoIP data to be transmitted before the terminal is compressed.
  • the terminal uses different air interface overhead compression modes.
  • the terminal may perform a corresponding compression operation according to the type of the VoIP data to be transmitted.
  • the terminal when the VoIP data to be transmitted is a voice frame, the terminal first removes an RTP header, a UDP header, and an IP header of the voice frame, and then encrypts the voice frame after the removal operation. And add only 2 bytes of PDCP header to the encrypted speech frame. Since the voice frame size is 20 bytes, the terminal can no longer increase the PDCP layer Padding to ensure that the TB size is 22 bytes.
  • the terminal When the VoIP data to be transmitted is a SID frame, the terminal first removes an RTP 4 header, a header, an IP header of the SID frame, and then encrypts the SID frame after the removal operation, and Add a 2-byte PDCP header to the encrypted SID frame. Since the size of the SID frame is 7 bytes, the terminal only adds 13 bytes of the PDCP layer Padding to ensure that the TB size is 22 bytes.
  • the order in which the PDCP header is added to the terminal and the PDCP layer is filled is not limited.
  • the PDCP header includes a lbit E (extension, extension) domain, a 7-bit PDCP SN domain, and an 8-bit PT domain, or a 2-bit D/C domain and a 6-bit PDCP SN domain.
  • the E field is used to indicate whether the PDCP header has an extension.
  • the PT field is an extended part of the PDCP header and is used to indicate the type of the VoIP data to be transmitted.
  • the target VoIP data is a MAC PDU.
  • step 36 since the terminal does not increase the MAC header when compressing the VoIP data to be transmitted, the base station MAC layer directly delivers the received MAC PDU to the logic.
  • the RLC layer of the channel does not perform Demultiplexing processing.
  • the base station can reorder the target VoIP data by using the lower 5 bits of the PDCP SN.
  • the base station removes the PDCP layer Padding and the PDCP header of the reordered target VoIP data according to the type of the target VoIP data indicated by the extended portion (ie, the PT domain) of the PDCP header. Specifically, when the target VoIP data is a voice frame, the base station removes a 2-byte PDCP header from the reordered target VoIP data. When the target VoIP data is a SID frame, the base station removes a 2-byte PDCP header and a 13-byte PDCP layer Padding for the reordered target VoIP data.
  • Embodiment 4 of the present invention provides a terminal, including:
  • a determining unit 91 configured to determine a logical channel, an air interface overhead compression mode, and a target transport block size TB size of the VoIP data to be transmitted;
  • the processing unit 92 is configured to determine the unit according to the target TB size determined by the determining unit 91.
  • the air interface overhead of the VoIP data to be transmitted on the determined logical channel is compressed according to the air interface overhead compression method determined by the determining unit 91 to obtain the target VoIP data;
  • a sending unit configured to send the target VoIP data acquired by the processing unit 92 to the base station.
  • the determining unit 91 is specifically configured to:
  • the air interface cost compression instruction includes an identifier of the logical channel, an indication of the air interface overhead compression mode, and an indication of the target TB size;
  • the determining unit 91 is specifically configured to:
  • the air interface cost compression instruction includes an identifier of the logical channel, and determining, according to the identifier of the logical channel, a logical channel to which VoIP data is to be transmitted;
  • the determining unit 91 is specifically configured to:
  • the base station Receiving an uplink grant sent by the base station, where the uplink grant carries a logical channel identifier and a TB size;
  • the TB size carried by the uplink grant is determined as the target TB size of the VoIP data to be transmitted;
  • the determining unit 91 is specifically configured to:
  • the air interface cost compression instruction includes an identifier of the logical channel and an indication of the air interface overhead compression mode
  • the base station Receiving an uplink grant sent by the base station, where the uplink grant carries a logical channel identifier and a TB size;
  • the TB size carried by the uplink grant is determined as the target TB size of the VoIP data to be transmitted.
  • the processing unit 92 when performing the compression of the air interface overhead, is specifically configured to:
  • the air interface overhead compression command is preferably a radio resource control protocol RRC signaling.
  • the processing unit 92 when performing the compression of the air interface overhead, is specifically configured to:
  • the processing unit 92 when performing the compression of the air interface overhead, is specifically configured to:
  • Adding a PDCP header to the encrypted VoIP data adding a MAC header to the VoIP data with the added PDCP header, and performing MAC layer filling on the VoIP data of the added MAC header to obtain target VoIP data;
  • Adding a PDCP header to the encrypted VoIP data performing MAC layer filling on the VoIP data with the added PDCP header, and adding a MAC header to the MAC layer-filled VoIP data to obtain target VoIP data.
  • the processing unit 92 when performing the compression of the air interface overhead, is specifically configured to: Deleting the RTP header, the UDP header, and the IP header of the VoIP data to be transmitted; and encrypting the VoIP data in which the RTP header, the UDP header, and the IP header are deleted;
  • the processing, by the processing unit 92, expanding the increased PDCP header includes: extending a specified byte to the added PDCP header, and carrying a data type of the VoIP in the specified byte.
  • the terminal compresses the VoIP data to be transmitted of the specified logical channel according to the TB size according to the air interface overhead compression scheme, acquires the target VoIP data, and then sends the target VoIP data to the base station, so that the base station will
  • the target VoIP data is subjected to a restoration process to obtain the VoIP data to be transmitted before the compression. Since the target VoIP data after the compression operation only includes a part of the air interface protocol header, the size of the target VoIP data is reduced, and the same power limitation is performed.
  • the uplink successful transmission distance is improved, thereby effectively solving the uplink coverage hole problem and enhancing the uplink coverage of the VoIP data. Therefore, with the terminal of the embodiment of the present invention, uplink coverage of VoIP data is enhanced.
  • the fifth embodiment of the present invention further provides a base station, including:
  • the receiving unit 1001 is configured to receive target VoIP data sent by the terminal, where the target VoIP is The air interface overhead of the data is compressed by the terminal according to the target TB size determined by the terminal, and according to the air interface overhead determined by the terminal;
  • the processing unit 1002 is configured to perform a restoration process on the target VoIP data received by the receiving unit 1001 according to the air interface overhead compression manner of the target VoIP data.
  • the base station further includes a sending unit 1003.
  • the sending unit 1003 is configured to: send an air interface cost compression instruction to the terminal, where the air interface cost compression instruction includes an identifier of the logical channel, an indication of the air interface overhead compression mode, and the target TB size And the indication, so that the terminal determines, according to the air interface overhead compression instruction, a logical channel, an air interface overhead compression mode, and a target TB size of the VoIP data to be transmitted;
  • the sending unit 1003 is configured to: send an air interface overhead compression instruction to the terminal, where the air interface cost compression instruction includes an identifier of the logical channel, so that the terminal determines, according to the air interface overhead compression instruction, a logical channel for transmitting VoIP data;
  • the sending unit 1003 is configured to: send an air interface overhead compression instruction to the terminal, where the air interface cost compression instruction includes an identifier of the logical channel, so that the terminal determines, according to the air interface overhead compression instruction, a logical channel for transmitting VoIP data; sending an uplink grant to the terminal, where the uplink grant carries a logical channel identifier and a TB size that are the same as the identifier of the logical channel in the air interface overhead compression command, so that the terminal is configured according to Determining, by the uplink authorization, the TB size carried in the uplink authorization as a target TB size of the VoIP data to be transmitted;
  • the sending unit 1003 is configured to: send an air interface overhead compression instruction to the terminal, where the air interface overhead compression instruction includes an identifier of the logical channel and an indication of the air interface overhead compression manner, so that the terminal Determining, by the air interface overhead compression command, a logical channel and an air interface overhead compression mode of the VoIP data to be transmitted; sending an uplink grant to the terminal, where the uplink grant carries the same identifier as the logical channel in the air interface overhead compression command
  • the logical channel identifier and the TB size are used to enable the terminal to determine the TB size carried in the uplink grant as the target TB size of the VoIP data to be transmitted according to the uplink grant.
  • the air interface overhead compression command is preferably wireless.
  • Resource Control Protocol RRC Signaling
  • the processing unit when performing a reductive decompression process, the processing unit
  • 1002 is specifically used for:
  • the processing unit 1002 when performing a reductive decompression process, is specifically configured to:
  • the RTP header, the UDP header, and the IP header of the decrypted target voice data are restored.
  • the processing unit 1002 when performing a reductive decompression process, is specifically configured to:
  • Embodiment 5 of the present invention can be referred to the description in the foregoing method embodiments.
  • the terminal compresses the VoIP data to be transmitted of the logical channel and acquires the target VoIP data, and the base station performs a restoration process on the target VoIP data sent by the terminal to obtain the to-be-transmitted before the compression.
  • VoIP data because the target VoIP data after compression operation only contains part of the air interface protocol header, which reduces the size of the target VoIP data, and improves the uplink successful transmission distance under the same power limitation, thereby effectively solving the uplink of the terminal. Covering the hole problem and enhancing the uplink coverage of VoIP data. Therefore, with the base station of the embodiment of the present invention, uplink coverage of VoIP data is enhanced.
  • the technical solution of the embodiment of the present invention enhances the uplink coverage of VoIP data.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the above-described units implemented in the form of software functional units may be stored in a computer readable storage medium.
  • the software functional unit described above is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a USB flash drive, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. medium.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephonic Communication Services (AREA)

Abstract

Des modes de réalisation de la présente invention concernent le domaine technique des communications, et portent sur un procédé d'amélioration de couverture en liaison montante de données de voix sur protocole Internet (VoIP), un terminal et une station de base. Le procédé consiste à : déterminer un canal logique, un mode de compression de surdébit d'interface radio et une taille de bloc de transmission (TB) cible de données VoIP à transmettre; sur la base de la taille de TB cible déterminée, compresser, conformément au mode de compression de surdébit d'interface radio déterminé, un surdébit d'interface radio des données VoIP à transmettre sur le canal logique déterminé, de manière à obtenir des données VoIP cibles; et envoyer les données VoIP cibles à la station de base. Les modes de réalisation de la présente invention sont principalement utilisés pour la transmission de données VoIP.
PCT/CN2012/087217 2012-02-01 2012-12-22 Procédé d'amélioration de couverture en liaison montante de données voip, terminal et station de base WO2013113238A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201210022542.X 2012-02-01
CN201210022542.XA CN103248604B (zh) 2012-02-01 2012-02-01 增强VoIP数据上行覆盖的方法、终端及基站

Publications (1)

Publication Number Publication Date
WO2013113238A1 true WO2013113238A1 (fr) 2013-08-08

Family

ID=48904403

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2012/087217 WO2013113238A1 (fr) 2012-02-01 2012-12-22 Procédé d'amélioration de couverture en liaison montante de données voip, terminal et station de base

Country Status (2)

Country Link
CN (1) CN103248604B (fr)
WO (1) WO2013113238A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9674710B2 (en) 2013-12-20 2017-06-06 Qualcomm Incorporated Channel dependent coverage enhancement techniques in LTE
CN105992242B (zh) * 2015-03-06 2019-07-26 电信科学技术研究院 一种空口协议栈的配置方法、数据传输方法及设备
US10009401B2 (en) * 2015-09-23 2018-06-26 Qualcomm Incorporated Call continuity in high uplink interference state
WO2017143538A1 (fr) * 2016-02-24 2017-08-31 华为技术有限公司 Procédé et appareil de transmission de données vocales

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10112730A (ja) * 1996-10-04 1998-04-28 Toshiba Corp 通信端末装置および中継装置およびネットワーク間接続ケーブル
CN1529971A (zh) * 2001-04-06 2004-09-15 ����ɭ�绰�ɷ����޹�˾ 用于voip无线终端的系统和方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101442381B (zh) * 2007-11-21 2011-09-14 电信科学技术研究院 一种业务传输及接收方法、相关装置和系统
CN102056174B (zh) * 2010-12-16 2014-03-12 大唐移动通信设备有限公司 一种资源调度的方法、装置和基站

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10112730A (ja) * 1996-10-04 1998-04-28 Toshiba Corp 通信端末装置および中継装置およびネットワーク間接続ケーブル
CN1529971A (zh) * 2001-04-06 2004-09-15 ����ɭ�绰�ɷ����޹�˾ 用于voip无线终端的系统和方法

Also Published As

Publication number Publication date
CN103248604B (zh) 2016-12-21
CN103248604A (zh) 2013-08-14

Similar Documents

Publication Publication Date Title
US10735334B2 (en) Data sending method, data receiving method, and related device
WO2018137488A1 (fr) Procédé, dispositif et système de mise en oeuvre de sécurité
JP4469394B2 (ja) 無線通信システムにおけるプロトコルデータユニットのオーバーヘッド減少方法
TWI566549B (zh) 用於處理封包資料收斂協定資料單元之通信方法、裝置及系統
EP3737183B1 (fr) Procédés et dispositifs de communication et support de stockage lisible par ordinateur
US8379855B2 (en) Ciphering in a packet-switched telecommunications system
US8743905B2 (en) Method and apparatus for bundling and ciphering data
CN103782569B (zh) 数据处理装置和方法
CN101848489B (zh) Pdu的发送/接收方法和装置
JP2018506881A (ja) フラグメント化確認応答シグナリングを用いた、短縮されたブロック確認応答
TWM354953U (en) Wireless transmit/receive unit
CN108337633B (zh) 数据分流配置方法、基站系统和用户终端
WO2011137783A1 (fr) Procédé, appareil et système de traitement de données
KR20110055339A (ko) 단편화 패킹 확장헤더를 수반하는 ｍａｃ ｐｄｕ를 전송하는 방법 및 장치
KR20190083944A (ko) 무선 통신 시스템에서 개선된 통신 성능을 위한 방법 및 장치
US20230075613A1 (en) Terminal device
WO2013155846A1 (fr) Procédé de configuration pour diffusion de données en flux, système de station de base et terminal d'utilisateur
WO2013113238A1 (fr) Procédé d'amélioration de couverture en liaison montante de données voip, terminal et station de base
CN111163081B (zh) 数据传输方法、装置、设备及存储介质
KR100995962B1 (ko) 무선 통신 시스템에서 패킷 데이터 컨버전스 프로토콜 계층에 대한 데이터 해독을 처리하는 방법 및 장치
CN108200605B (zh) 一种基站的数据传输方法和装置
WO2017143538A1 (fr) Procédé et appareil de transmission de données vocales
JP2008148314A (ja) 無線通信システムにおいてリオーダーを処理する方法及び装置
WO2018058444A1 (fr) Procédé et appareil de chiffrement de données
WO2023056638A1 (fr) Procédé et appareil de communication

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: 12867710

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 12867710

Country of ref document: EP

Kind code of ref document: A1