WO2008064576A1 - Procédé de transmission de paquet multi-utilisateur et appareil et système en découlant - Google Patents

Procédé de transmission de paquet multi-utilisateur et appareil et système en découlant Download PDF

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Publication number
WO2008064576A1
WO2008064576A1 PCT/CN2007/003391 CN2007003391W WO2008064576A1 WO 2008064576 A1 WO2008064576 A1 WO 2008064576A1 CN 2007003391 W CN2007003391 W CN 2007003391W WO 2008064576 A1 WO2008064576 A1 WO 2008064576A1
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Prior art keywords
user
user data
rev
data
packet
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PCT/CN2007/003391
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English (en)
Chinese (zh)
Inventor
Peng Li
Yuan Zhang
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Huawei Technologies Co., Ltd.
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Publication of WO2008064576A1 publication Critical patent/WO2008064576A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/66—Arrangements for connecting between networks having differing types of switching systems, e.g. gateways

Definitions

  • Multi-user packet transmission method device and system thereof
  • the present invention relates to data transmission technologies in the field of communications, and more particularly to a method and apparatus for transmitting multi-user packets. Background technique
  • 3GPP2 proposes a new air interface evolution plan - AIE (Air Interface Evolution).
  • AIE adopts new air interface technologies, such as OFDM (Orthogonal Frequency Division Multiplexing), MIMO (Multi-Input Multi-Output), and interference cancellation technologies. Spectrum efficiency, data peak rate to meet the future of wireless communications.
  • the AIE evolution is divided into two directions: LBC (Loosely Backwards Compatibility) and SBC (Strictly Backwards Compatibility).
  • LBC Liosely Backwards Compatibility
  • SBC Small Backwards Compatibility
  • the SBC design philosophy is fully compatible with DO Rev.O, 00 1 ⁇ . and 00 1 6 8.
  • the SBC system serves DO Rev.O/A/B legacy mobile phone users while providing high-quality, high-speed data service services for new handsets.
  • the forward link uses CDM (CDM Code Division Multiplexing) or OFDM time division transmission mode.
  • the DO Rev.B system is the latest version of the current DO system and is compatible with the DO Rev.O/ ⁇ system.
  • the base station assigns a unique identifier - MACIndex to each active user in the service area.
  • the MACIndex of the DO Rev.A user consists of 7 bits and its range is 0 ⁇ 127.
  • the DO Rev.B user's MACIndex consists of 8 bits and the range is 0 ⁇ 255.
  • the DO Rev.B user automatically adds 128 after assigning an 8-bit MACIndex to form the MACIndex of the user, so the DO Rev.B user MACIndex ranges from 128 to 383.
  • the system can carry data of multiple users in one data packet, and such a data packet is called a multi-user packet.
  • Table 1 is The general multi-user packet transport format of the DORev.B system (
  • ⁇ is the tengthH field value
  • the PacketlnfoH field contains two subfields, as shown in Table 2:
  • the PacketlnfoH field indicates the identification information of the user, wherein the ForwardTrafficMACIndex subfield is used to identify the MACIndex of the user.
  • the user receives a multi-user packet, it checks the ForwardTrafficMACIndex subfield. If its own MACIndex matches the subfield value, It means that its own data is in the multi-user package; otherwise, the multi-user package does not contain its own data, but discards the multi-user package.
  • the ForwardTrafficMACIndex subfield in the PacketlnfoH field ranges from 0 to 127, so this field can only identify the DO Rev.A user and cannot identify the DO Rev.B user.
  • the LengthH field identifies the length of the user data corresponding to the Packetlnfo field, that is, the length of the corresponding Security Layer Packet part.
  • PacketlnfoH and LenghtH appear as n, ranging from 0 to 8, so they can only carry up to 8 Do Rev.A users.
  • the number of data parts is also n, and the order of the data parts corresponds to the order of the PacketlnfoH field so that Do Rev.A users can find the location of their own data.
  • the DelimiterH field is the delimiter between the PacketlnfoH and LenghtH fields and the Do Rev.A user data portion, and consists of eight all zeros. If the number of occurrences of PacketlnfoH and LenghtH is equal to 8, there is no DelimiterH field. If n is less than 8, the DelimiterH field is inserted between the PacketlnfoH and LenghtH fields and the data portion so that the Do Rev.A user can accurately find the starting position of the data portion.
  • the Multi-user packet does not contain DO Rev.A user data
  • the PacketlnfoH ⁇ LenghtH and DO Rev.A user data Security Layer Packet is not included, but the DelimiterH field is reserved, and the DelimiterH field is located at the beginning of the multi-user packet.
  • the ForwardTrafficMACIndex field is 8 bits long and corresponds to the DO Rev. B user.
  • MACIndex The value of this field plus 128 is the MACIndex of the corresponding DO Rev.B user.
  • the LengthT field has the same meaning as the LengthH field.
  • PacketlnfoT and LenghtT appear as r, ranging from 0 to 8, so they can only carry up to 8 Do Rev.B users.
  • the number of data parts is also r, and the order of the data parts corresponds to the order of the PacketInfoT field so that the Do Rev.B user can find the location of his own data.
  • the DelimiterT field is the delimiter between the PacketlnfoT and LenghtT fields and the Do Rev.B user data portion, and consists of 8 all zeros. If the number of occurrences of PacketlnfoT and LenghtT is equal to 8, there is no DelimiterT field.
  • the DelimiterT field is inserted between the PacketlnfoT and LenghtT fields and the data portion so that the Do Rev.B user can accurately find the starting position of the data portion. If the multi-user packet does not contain the DO RevJB user data, the PacketlnfoT ⁇ LenghtT and DO Rev.B user data Security Layer Packet is not included, but the DelimiterT field is reserved, and the DelimiterT field is located at the end of the multi-user packet.
  • the Pad field contains padding bits, consisting of all 0s, so that the length of the entire multi-user packet reaches some specific multi-user packet length values.
  • the MACPacket Type field identifies the type of the data, which is 00.
  • the DO Rev. B system specifies that the DO Rev.A user reads the multi-user packet from front to back, and the DO Rev.B user reads the multi-user packet from the back to the front.
  • the DO Rev.A user first reads the Delimiter field at the start position (indicating that the multi-user packet does not contain DO Rev.A user data)
  • the multi-user packet is discarded; when the DO Rev.B user first reads
  • the Delimiter field at the end indicating that the multi-user packet does not contain DO Rev. B user data
  • the multi-user packet is discarded.
  • the DO Rev.A user or the DO Rev.B user does not read the Delimiter field first, the corresponding PacketInfo part is read.
  • the user's MACIndex is found, the user data of the user is read from the corresponding Security Layer Packet part. If the MACIndex of the user is not found, the multi-user packet is discarded.
  • the multi-user packet transmission format of the current DO Rev. B system supports the user's MACIndex range from 0 to 383. It can only support up to 384 users. In the AIE SBC system, the maximum number of users supported is more than 384, and at least 512, or more. Therefore, the current DO RevJB multi-user packet transmission cannot meet future needs. Summary of the invention
  • Embodiments of the present invention disclose a method of transmitting a multi-user packet and an apparatus and system thereof to meet the requirements of a DO evolved system for multi-user packet transmission.
  • the method for transmitting a multi-user packet disclosed in the embodiment of the present invention includes the following steps:
  • the multi-user packet format is: including DO Rev. A system user data, DO evolution system user data, and DO Rev. B system user data, where the DO evolution system user data is located in the DO Rev. A system user Between data and DO Rev. B system user data;
  • the generated multi-user package is sent.
  • the user terminal receives the multi-user packet, and the multi-user packet format is: including DO Rev. A system user data, DO evolution system user data, and DO Rev. B system user data, where the DO evolution system user data is located in DO Rev. A Between system user data and DO Rev. B system user data; determining a starting location of user data belonging to the user terminal, and acquiring user data based on the location.
  • a generating module configured to generate a multi-user packet, where the multi-user packet format is: including DO Rev. A system user data, DO evolution system user data, and DO Rev. B system user data, where the DO evolution system user data is located in the DO Between Rev. A system user data and DO Rev. B system user data;
  • a sending module configured to send the generated multi-user package.
  • a receiving module configured to receive a multi-user packet, where the multi-user packet format is: including DO Rev. A system user data, DO evolved system user data, and DO Rev. B system user data, where the DO evolution system user data is located in the DO Between Rev. A system user data and DO Rev. B system user data;
  • a location determining module configured to determine a starting location of user data belonging to the receiving device
  • a data acquisition module configured to acquire user data according to the location.
  • a multi-user packet sending apparatus configured to generate a multi-user packet and send the generated multi-user packet, where the multi-user packet format is: including DO Rev. A system user data, DO evolution system user data, and DO Rev. B system user data, where the DO evolved system user data is located between the DO Rev. A system user data and the DO Rev. B system user data;
  • the receiving device of the multi-user packet is configured to receive the multi-user packet, determine a starting location of user data belonging to the multi-user packet receiving device, and acquire user data according to the location.
  • the foregoing embodiment of the present invention generates multiple users of the DO evolution system by sequentially placing the DO Rev. B system user data, the DO evolved system user data, and the DO Rev. A system user data when transmitting the multi-user packet of the DO evolved system. Packet; when receiving the multi-user packet of the DO evolution system, determining the location of the user data of the DO evolution system according to the DO Rev. A system user data or the DO Rev. B system user data, and implementing the DO evolution in the multi-user packet The user data of the system, while ensuring that the original DO Rev.A system user and the DO Rev. B system user correctly receive the multi-user packet, realize backward compatibility, and overcome the current multi-user packet in the prior art cannot be satisfied.
  • FIG. 1 is a schematic diagram of a multi-user packet format according to Embodiment 1 of the present invention.
  • FIG. 2 is a schematic diagram of a multi-user packet format according to Embodiment 2 of the present invention.
  • FIG. 3 is a schematic diagram of a multi-user packet format according to Embodiment 3 of the present invention.
  • FIG. 4 is a schematic diagram of a multi-user packet format according to Embodiment 4 of the present invention.
  • FIG. 5 is a schematic structural diagram of a multi-user packet generating apparatus according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a multi-user packet receiving apparatus according to an embodiment of the present invention. detailed description
  • the multi-user packet format is defined without changing the DO Rev. A/B system user, and the multi-user packet transmission mode is defined to ensure backward compatibility.
  • This embodiment describes the user in the system contract DO Rev. C system (ie DO evolution system) from the front After the multi-user packet is read, the multi-user packet containing the three user data of DO Rev.A/B/C is generated and transmitted.
  • DO Rev. C system ie DO evolution system
  • FIG. 1 is a schematic diagram of a multi-user packet format according to Embodiment 1 of the present invention. As shown, the top of the packet is the start of the multi-user package, and the bottom of the packet is the end of the multi-user package.
  • the top is the user indication part and the user data part of the user (DO Rev. A user) data with MACIndex ⁇ 128.
  • the bottom is the user indication portion and the user data portion of the user (DO Rev. B User) data of 128 ⁇ MACIndex ⁇ 384.
  • the middle part is the newly added part, that is, the user indication part and the user data part of the user (DO Rev. C user) data of 384 ⁇ MACIndex ⁇ 512.
  • the Delimiter field between the user indication portion of the DO Rev. A user data and the user data portion of the DO Rev. A user data is used to separate the user indication portion and the user data portion of the DO Rev. A user data, when the number of user identifications is 8. This field is not needed.
  • the Delimiter field between the user part of the DO Rev. C user data and the user data part of the DO Rev. C user data is used to separate the user indication part and the user data part of the DO Rev. C user data, DO Rev. B user
  • the Delimiter field between the user indication portion of the data and the user data portion of the DO Rev. B user data is used to separate the user indication portion and the user data portion of the DO Rev. B user data.
  • the Delimiter field consists of 8 all 0s.
  • the bottommost MAC Packet Type field is used to identify the multi-user packet and consists of two all-zeros.
  • the indication fields of the user data of the DO Rev. A, DO Rev. B and DO Rev. C include the length information of the user identification and the user data, and the user data of each user identifier in the user indication portion of the user data and the user data in the user data portion. The order corresponds.
  • the sender After the sender generates the multi-user packet, it sends it to the receiver.
  • the indication information of the DO Rev. B user data in the multi-user packet is read; if the MACIndex is found in the MACIndex recorded in the indication information part (the MACIndex in the user indication part needs to be added 128), according to the indication information
  • the partially recorded user data length is calculated to obtain the starting position of the user data in the DO Rev. B user data portion, and then the length corresponding to the user identifier is read from the starting position; if the user indicates that the portion does not contain the user
  • the MACIndex the packet is discarded.
  • the DO Rev. C user needs to add 384 to the MACIndex when reading the indication information part to judge Whether or not it contains its own identity.
  • the DO Rev.C user's identity can be greater than 512.
  • the corresponding DO Rev.C user's identity can be obtained according to the MACIndex value in the multi-user packet.
  • This embodiment describes the process of generating and transmitting a multi-user packet containing two user data of DO Rev.A/C when the system agrees that the DO Rev. C user reads the multi-user packet from front to back.
  • FIG. 2 is a schematic diagram of a multi-user packet format according to Embodiment 2 of the present invention. As shown, the top of the packet is the start of the multi-user package, and the bottom of the packet is the end of the multi-user package.
  • the top is the user indication and data portion of the user (DO Rev. A User) data with MACIndex ⁇ 128.
  • the latter part is the user indication part and the data part of the user (DO Rev. B user) data of 128 ⁇ MACIndex ⁇ 384.
  • the Delimiter field between the user indication portion of the DO Rev. A user data and the user data portion of the DO Rev. A user data is used to separate the user indication portion and the user data portion of the DO Rev. A user data, when the number of user identifications is 8. This field is not needed.
  • the Delimiter field between the user indication portion of the DO Rev. C user data and the user data portion of the DO Rev. C user data is used to separate the user indication portion and the user data portion of the DO Rev. C user data. Since the multi-user packet does not contain DO RevJB user data, there is a Delimiter field at the end of the multi-user packet, and the Delimiter field consists of 8 all-zeros.
  • the bottommost MAC Packet Type field is used to identify the multi-user packet and consists of two all-zeros.
  • the indication fields for DO Rev.A and DO Rev.C user data include user identification and user data.
  • the length information, and each user identifier in the user indication portion corresponds in order to the user data of each user in the user data portion.
  • the sender After the sender generates the multi-user packet, it sends it to the receiver.
  • the multi-user packet is processed according to the processing manner as described in the first embodiment. .
  • This embodiment describes the process of generating and transmitting a multi-user packet containing two user data of DO Rev.B/C when the system agrees that the DO Rev. C user reads the multi-user packet from front to back.
  • FIG. 3 it is a schematic diagram of a multi-user data packet format according to Embodiment 3 of the present invention. As shown, the top of the packet is the start of the multi-user packet, and the bottom of the packet is the end of the multi-user packet.
  • the top is the user indication portion and the data portion of the user (DO Rev. C user) data of 384 ⁇ MACIndex ⁇ 512. This is followed by a user indication portion and a data portion of 128 ⁇ MACIndex ⁇ 384 user (DO RevJB user) data.
  • the Delimiter field between the user indication part of the DO Rev. C user data and the user data part of the DO Rev. C user data is used to separate the user indication part and the user data part of the DO Rev. C user data, when the number of user identifications is 8. This field is not needed.
  • the Delimiter field between the user indication portion of the DO RevJB user data and the user data portion of the DO Rev. B user data is used to separate the user indication portion and the user data portion of the DO Rev. B user data.
  • the Packet Type field is used to identify a multi-user packet and consists of 2 all-zeros. Since the multi-user packet does not contain the DO Rev.A user data, the multi-user packet start position has a Delimiter field, and the Delimiter field is composed of 8 all-zeros.
  • the indication fields of the user data of the DO Rev. B and the DO Rev. C include the length information of the user identification and the user data, and the user identifications in the user indication portion correspond to the user data of each user in the user data portion.
  • the sender After the sender generates the multi-user packet, it sends it to the receiver.
  • the data packet is processed in the processing manner as described in the first embodiment.
  • the Delimiter field is first read to indicate that the multi-user data packet does not contain the data of the DO Rev. A user, and the user indication portion of the subsequent DO Rev. C user data is continuously read. If the MACIndex is found in the MACIndex recorded in the indication information part (the MACIndex in the user indication part needs to be added 256), the length is calculated according to the length of the user data recorded in the indication information part. User data in the DO Rev. C user data portion of the starting position, and then read the data corresponding to the length of the user ID from the starting position; if the user indication portion of the user data does not contain its own MACIndex, then discard The packet.
  • This embodiment describes the process of generating and transmitting a multi-user packet containing DO Rev. C, a user data, when the system appoints a DO Rev. C user to read a multi-user packet from front to back.
  • FIG. 4 it is a schematic diagram of a multi-user data packet format according to Embodiment 4 of the present invention. As shown in the figure, the top of the packet is the start of the multi-user package, and the bottom of the packet is the end of the multi-user package.
  • the top is the user indication portion and data portion of user data (DO Rev. C user) with 384 ⁇ MACIndex ⁇ 512.
  • the Delimiter field between the user indication portion of the DO Rev. C user data and the user data portion of the DO Rev. C user is used to separate the user indication portion and the user data portion of the DO Rev. C user data. When the number of user identifiers is 8, , this field is not needed. Since the multi-user packet does not contain DO Rev.A user data, there is a Delimiter field at the start of the multi-user packet; since the multi-user packet does not contain DO Rev.B user data, there is a Delimiter field at the end of the multi-user packet. The Delimiter field consists of 8 all 0s. The bottommost MAC Packet Type field is used to identify the multi-user packet and consists of two all-zeros.
  • the indication field of the DO Rev. C user data includes user identification and length information of the user data, and each user identification in the user indication portion corresponds to the user data of each user in the user data portion.
  • the sender After the sender generates the multi-user packet, it sends it to the receiver.
  • the multi-user packet is processed as described in the third embodiment.
  • the multi-user packet is processed as described in the second embodiment.
  • the multi-user packet is processed in the manner described in the third embodiment.
  • the above embodiments are all the process of transmitting and receiving the multi-user packet when the DO Rev. C user reads the multi-user packet from front to back.
  • the system can also stipulate that the DO Rev.C user reads the multi-user packet from the back to the front.
  • the format of the multi-user packet is similar to the various cases described in the above embodiment, except that the user of the DO Rev. C user data
  • the order of the indication part and the data part is inverted, that is, from the top to the bottom of the multi-user package, the data portion of the DO Rev. C user data is placed first, followed by the user indication portion of the DO Rev. C user data.
  • the DO Rev.C system user terminal When the DO Rev.C system user terminal reads the multi-user packet from the back to the front, the DO Rev. C user data is first read, and the user information from the DO Rev. C user data is read according to the indication information. The data portion gets its own data or discards the multi-user packet.
  • DO Rev.A user data Due to the small number of DO Rev.A system users in practical applications, multi-user packages do not contain: DO Rev.A user data has a higher probability.
  • the DO Rev.C system user terminal reads the multi-user packet from the back to the front, it needs to calculate the user indication part of the DO Rev. C system user data according to the instruction information of the user indication part of the DO Rev. B system user data.
  • Position while the DO Rev.C system user terminal reads the multi-user packet from front to back, it can locate the user indication part of the DO Rev.C system user data without calculation, reducing the DO Rev.C system user terminal. Processing. Therefore, the embodiments described in the first to fourth embodiments are preferred as the present invention.
  • the embodiment of the invention further provides a multi-user packet generating device and a multi-user packet receiving device.
  • FIG. 5 it is a schematic structural diagram of a multi-user packet generating apparatus according to an embodiment of the present invention.
  • the device is located at the multi-user packet sending end, and includes: a processing module and a generating module.
  • the processing module places the DO Rev.C system user data between the DO Rev.A system user data and the DO RevJB system user data, and the generation module processes the processed data of the module to generate a multi-user package.
  • the processing module places the user indication portion and the user data portion of the DO Rev. C system user data in the DO Rev. C system user data.
  • the processing module places the user identifier and the user data length information of the target user one by one in the user indication portion, and places the corresponding user data in the user data portion in the order in which the user identifier appears.
  • the processing module sets the order of the indication information part of the user data of the DO Rev. C system and the user data part according to the read mode of the multi-user packet agreed by the DO Rev. C system.
  • the processing module places the user indication portion of the DO Rev. C system user data before the user data portion of the DO Rev. C system user; when the user terminal of the DO Rev. C system When reading a multi-user packet from the back to the front, the processing module places the user indication portion of the DO Rev. C system user data after the user data portion of the DO Rev. C system user data.
  • the corresponding type of user data is set between the user indication portion and the user data portion.
  • the demarcation identifier is located at the beginning of the multi-user packet.
  • the demarcation identifier is located at the end of the multi-user packet. .
  • FIG. 6 is a schematic structural diagram of a multi-user packet receiving apparatus according to an embodiment of the present invention.
  • the device is located at the multi-user packet receiving end, including the reading module.
  • the read module reads the multi-user package according to the read mode of the multi-user package as agreed by the DO Rev. C system. According to the system agreement, the read module of the user terminal of the DO Rev.A or DO Rev.C system reads the multi-user packet in the order from the front to the back, and the read end of the DO Rev. B system user receives the block.
  • the multi-user packet is read in a forward sequence; or, the read module of the user terminal of the DO Rev. C or the DO Rev. B system reads the multi-user packet in a backward-to-forward order, and the DO Rev.
  • a system user receives The read module of the end reads the multi-user package in order from front to back.
  • the DO Rev. A system user receiver or the read module of the DO Rev. B system user receiver determines whether the multi-user packet contains the user type of the receiver according to whether the read-out identifier of the start position or the end position of the multi-user packet is read.
  • the user data if not included, discards the multi-user packet; otherwise, reads the user indication portion of the user type to which the receiving end belongs, and reads the data belonging to the receiving end from the corresponding user data portion according to the reading result. For example, when the read module of the user end of the DO Rev.
  • a system reads the demarcation identifier of the start position of the multi-user packet, the multi-user packet is discarded; the read module of the DO RevJB system user receiving end reads the multi-user packet When the demarcation of the end position is identified, the multi-user package is discarded.
  • the read module of the user terminal of the DO Rev.C system reads the multi-user packet from front to back, if the demarcation identifier of the start position of the multi-user packet is not read, according to the read DO Rev.A system user data.
  • the user indication part of the indication information is calculated by the user indication in the DO Rev. C system user data. Where the part is located; if the demarcation identifier of the start position of the multi-user packet is read, it is determined that the user indication part after the identification is the user indication part of the DO Rev. C system user data.
  • the read module of the user terminal of the DO Rev.C system reads the multi-user packet from the back to the front, if the demarcation identifier of the end position of the multi-user packet is not read, according to the read DO Rev. B system user data
  • the user indication information of the user indication part calculates the location of the user indication part of the user data of the DO Rev. C system; if the demarcation identifier of the end position of the multi-user packet is read, it is determined that the user indication part after the identification is DO Rev.
  • the user indication portion of the C system user is
  • the reading module of the receiving end of the DO Rev. C system determines the position of the user indicating part and reads the indication information. If the user identifier matching the receiving end is read, the data of the receiving end is calculated according to the length information of the user data. a starting position in the corresponding user data portion; reading user data of a data length corresponding to the receiving end user identifier from the starting position; and discarding the multi-user packet if the user identifier matching the receiving end is not read.
  • the read module of the DO Rev.C system user receiving terminal reads the user ID from the user identification part. As mentioned above, it needs to add the corresponding value to the read user ID, and then match the identifier of the receiving end.
  • the identifier of the DO Rev. C user is 512 ⁇ MACIndex ⁇ 640, and the read module needs to add 384 to the read MACIndex to determine whether the user indicates that the part contains an identifier that matches the receiving end.
  • the embodiment of the present invention places the data of the user of the DO Rev. C system between the DO Rev. A system user data and the DO Rev. B system user data in the existing multi-user packet, according to DO Rev. A.
  • the user indication portion and the data portion of the DO Rev. B user data determine the location of the user indication portion of the DO Rev. C system user data, and then obtain from the user data portion according to the user indication portion of the DO Rev. C system user data.
  • the data of the user realizes the user data with the user identifier greater than 384 in the multi-user package, and ensures the backward compatibility of the multi-user package.
  • the identifier of the user of the DO Rev. C system in the embodiment of the present invention is not limited to 384 ⁇ MADID ⁇ 512 and may be greater than 512.
  • the spirit and scope of the invention. it is intended that the present invention cover the modifications and variations of the inventions

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Abstract

La présente invention concerne un procédé de transmission de paquet multi-utilisateur et un appareil et un système en découlant, ce procédé consistant à : générer le paquet multi-utilisateur, le format dudit paquet étant composé des étapes suivantes : l'inclusion des données d'utilisateur du système Rév. A DO, des données d'utilisateur du système d'évolution DO et de celles du système Rév. B DO, sachant que les données d'utilisateur du système d'évolution DO se situent entre celles du système Rév. A DO et celles du système Rév. B DO, et la transmission dudit paquet multi-utilisateur généré. Lorsque le côté réception de l'utilisateur du système Rév. C DO reçoit ce paquet multi-utilisateur, il obtient l'emplacement de la section d'indication d'utilisateur des données d'utilisateur du système Rév.C DO basées sur les données de l'utilisateur Rév. A DO ou celles de l'utilisateur Rév. B DO, puis il obtient les données qui appartiennent à l'utilisateur à partir de la section de données de l'utilisateur du système Rév. B DO sur la section d'indication de l'utilisateur. En utilisant cette invention, un système d'utilisateur multi-type peut être pris en charge et la compatibilité rétrograde du paquet multi-utilisateur peut être réalisée.
PCT/CN2007/003391 2006-11-30 2007-11-30 Procédé de transmission de paquet multi-utilisateur et appareil et système en découlant WO2008064576A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200610145981.4 2006-11-30
CNA2006101459814A CN101192899A (zh) 2006-11-30 2006-11-30 一种多用户包的生成方法、接收方法及其装置

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US11546111B2 (en) 2021-06-24 2023-01-03 Ultralogic 6G, Llc Demarking the start and end of 5G/6G downlink messages

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