CN101826907A - Multi-access mode notification method and transmitting device for wireless link information transmission - Google Patents

Abstract

The present invention discloses a method for notifying multiple access modes of wireless link information transmission and a transmitting device, which are applicable to wireless communication systems adopting multiple multiple access modes. When transmitting downlink information, the base station adds the indication signaling to the downlink information. The indication signaling is used to instruct the terminal to transmit the multiple access mode of the uplink information, and the uplink information includes control domain information and/or business domain information. The present invention enables the base station to notify the terminal of the multiple access mode of the terminal's uplink wireless link information transmission in time, which not only properly solves the notification of the multiple access mode when the system adopts multiple multiple access modes, but also satisfies the needs of the multiple access mode notification. To configure the notification overhead, so that the indication of the multiple access mode is complete and flexible.

Description

Multiple access mode notification method and transmitting device for wireless link information transmission

technical field

The present invention relates to the indication of the link information interaction mode of the wireless communication system, in particular to the notification method and the transmitting device of the multiple access mode of wireless link information transmission in the new generation mobile communication system (LTE/LTE-Advanced, IMT-Advanced).

Background technique

In an Orthogonal Frequency Division Multiplexing (OFDM, Orthogonal Frequency Division Multiplexing) system, the data stream is decomposed into several sub-data streams and transmitted in an OFDM manner, so that each sub-data stream has a relatively low transmission bit rate, and then modulate each sub-data stream to the corresponding sub-carrier for parallel transmission. It should be pointed out that not only are the OFDM subcarriers mutually orthogonal, but also the subcarriers have 1/2 overlap with each other.

In the LTE system, it is necessary to fully consider the peak-to-average power ratio (PAPR, Peak Average Power Ratio, referred to as peak-to-average ratio) of the user terminal (UE, User Equipment), that is to say, the instantaneous value of the output signal of the transmitter will be relatively large. large fluctuations. This will require some components in the system (such as power amplifiers, A/D or D/A converters, etc.) to have a large linear dynamic range. Conversely, the nonlinearity of these components will also cause nonlinear distortion to signals with a large dynamic range, and the generated harmonics will cause mutual interference of sub-channels, thereby affecting the performance of the OFDM system.

In the uplink multiple access in the LTE system, the Single Carrier-Frequency Division Multiple Access (SC-FDMA, Single Carrier-Frequency Division Multiple Access) method is finally selected. The very important reason is to solve the PAPR problem. Since the information symbols of the single-carrier system are directly modulated into the time domain (or some simple deformations are made to the information symbols), the PAPR value thereof is relatively low. On the other hand, in a multi-carrier system, since multiple carriers transmit information symbols at the same time, and the information symbols carried by each carrier are independent of each other, the PAPR value is relatively large, generally 2-3dB larger than that of a single-carrier system. High PAPR increases the linear performance requirements of components such as transmitter power amplifiers, which is especially unfavorable to UT, so an ideal solution for uplink multiple access is to use single-carrier FDMA with cyclic prefix (CP, CirclePrefix), that is, SC -FDMA.

However, the system adopts the SC-FDMA multiple access mode, which will limit the performance of the system. With the development of the new generation of mobile communication systems, since the problem of peak-to-average ratio can be better solved, the uplink multiple access method of the terminal can not be limited to SC-FDMA, and the good quality of the terminal can be guaranteed through other uplink multiple access methods. Performance, other candidate uplink multiple access methods such as Orthogonal Frequency Division Multiple Access (OFDMA) method, clustered single carrier frequency division multiple access (clustered SC-FDMA) method and N parallel single carrier Frequency Division Multiple Access (N×SC-FDMA) scheme, etc. Furthermore, during the link information interaction process between the terminal and the system, especially during the random access process, the peak-to-average ratio may change. To adapt to this change, the terminal may need to change the uplink multiple access mode, or need to The base station changes the downlink multiple access method. This requires the sending and receiving ends to be able to notify the opposite end of the multi-access mode adopted at this moment or at the next moment.

In the LTE system, there are two different forms of random access procedures, namely contention-based random access procedures and non-contention-based random access procedures. Usually, the former is used for random access of most terminals in a non-cell handover state, and the latter is used for random access of terminals in a cell handover state.

As shown in Figure 1, the contention-based random access process mainly includes the following four steps:

Step 1: The terminal (UE) transmits a randomly selected random access preamble (Preamble code) to the base station (Node-B or eNode-B, the eNode -B is referred to as eNB);

Step 2: After the base station detects the transmission of the Preamble code, it returns a random access response message to the terminal;

The random access response message returned by the base station includes the following information: the serial number of the received Preamble code, the time adjustment amount corresponding to the received Preamble code, and the indication information of the uplink resource location allocated for the terminal.

Step 3: After receiving the random access response message, the terminal transmits an uplink message on the uplink resource allocated by the base station according to the indication of the location of the uplink resource;

The uplink message transmitted by the terminal at least includes the unique ID of the terminal.

Step 4: After receiving the uplink message from the terminal, the base station returns a contention resolution message to the successfully accessed terminal.

The contention resolution message returned by the base station includes at least the unique ID of the terminal that has successfully accessed.

As shown in Figure 2, the non-contention-based random access process mainly includes the following three steps:

Step 0: The base station (Node-B or eNB) assigns the dedicated random access preamble to the terminal (UE) through a dedicated random access preamble assignment message in the downlink direction;

Step 1: The terminal transmits the random access preamble through the PRACH in the uplink direction;

Step 2: The base station returns a random access response message to the terminal on the downlink shared channel (DL_SCH, DownLink_Share CHannel).

At present, the research on the multiple access method based on the OFDM system is a hot spot, but there are few studies on the notification method of the multiple access method for the system using multiple multiple access methods, and there is no standardized and complete method to make the base station or terminal The sending and receiving ends can learn the multiple access mode adopted by the opposite end to transmit wireless link information through effective and flexible overhead at an appropriate time.

Contents of the invention

The technical problem to be solved by the present invention is to provide a multiple access mode notification method for transmitting wireless link information and its transmitting device, so that the receiving end of the terminal can know the multiple access mode that its uplink should adopt through the notification of the base station in time.

In order to solve the above technical problems, the present invention provides a method for notifying multiple access modes of wireless link information transmission, which is applicable to wireless communication systems using multiple multiple access modes. The method includes:

The base station and the terminal agree in advance on the indication signaling of the uplink multiple access mode;

When the base station transmits the downlink information, the indication signaling is added to the downlink information, the indication signaling is used to instruct the terminal to transmit the multiple access mode of the uplink information, and the uplink information includes control field information and/or business domain information.

Further, the base station adds the indication signaling to the random access message and delivers it.

Further, in a contention-based random access process, the base station adds the indication signaling to a random access response message and/or a contention resolution message for transmission; in a non-contention-based random access process, the base station sends the The indication signaling is added to be transmitted in a dedicated random access preamble assignment message and/or a random access response message.

Further, the uplink multiple access mode of the terminal, in addition to the single carrier frequency division multiple access SC-FDMA mode, also adopts the orthogonal frequency division multiple access OFDMA, clustered single carrier frequency division multiple access One or more of clustered SC-FDMA and N parallel single carrier frequency division multiple access N×SC-FDMA.

further,

When the uplink of the terminal adopts two multiple access modes, the indication signaling is configured as 1 bit, and the first multiple access mode is indicated by an indication value of the 1 bit, and the second multiple access mode is indicated by another indication value of the 1 bit. Two multiple address methods;

Alternatively, when the uplink of the terminal adopts three multiple access modes, the indication signaling is configured as 2 bits, and the 2 bits include the first indication value, the second indication value, the third indication value, and the fourth indication value Any three indication values are used as indication values of the first multiple address mode, the second multiple address mode and the third multiple address mode respectively;

Alternatively, when the uplink of the terminal adopts four multiple access modes, the indication signaling is configured as 2 bits, and the four indication values of the 2 bits are respectively used as the first multiple access mode, the second multiple access mode, Indication values of the third multiple access mode and the fourth multiple access mode.

Further, the base station transmits the downlink information using OFDMA, and the terminal receives the downlink information in OFDMA, and the downlink information includes control domain information and/or service domain information.

In order to solve the above technical problems, the present invention provides a wireless link information transmitting device used in a base station, including a terminal multiple access mode indication unit, a base station transmitter selection unit, and a base station downlink message transmitting unit, wherein:

The terminal multiple access mode indicating unit is connected with the downlink message transmitting unit of the base station, and is used to fill in the multiple access mode according to the rules pre-agreed by the system according to the multiple access mode of the terminal uplink learned from the multiple multiple access modes of the system The instruction signaling is output to the downlink message transmitting unit of the base station;

The base station transmitter selection unit is connected with the base station downlink message transmitting unit, and is used to indicate the transmitter of the selected base station downlink message to the base station downlink message according to the multiple access mode of the base station downlink message learned from the multiple access mode of the system launch unit;

The base station downlink message transmitting unit is used to add the input multiple access mode indication signaling to the downlink message to be delivered, and transmit the downlink through the transmitter of the base station downlink message indicated by the base station transmitter selection unit information.

further,

The terminal multiple access mode indication unit, the learned multiple access mode of the terminal uplink includes the single carrier frequency division multiple access SC-FDMA mode, orthogonal frequency division multiple access OFDMA, clustered single carrier frequency One or more of clustered SC-FDMA and N parallel single-carrier frequency division multiple access N×SC-FDMA;

The downlink message transmitting unit of the base station adds the input terminal multiple access mode indication signaling to the random access message and sends it; in the contention-based random access, the random access message is a random access response message and/or contention Resolution message; in non-contention based random access, the random access message is a random access preamble assignment message and/or a random access response message.

In order to solve the above technical problems, the present invention provides a radio link information transmitting device used in a terminal, including a terminal multiple access mode detection unit, a terminal transmitter selection unit and a terminal uplink message transmitting unit connected in sequence, wherein:

The terminal multiple access mode detection unit is used to output the terminal uplink multiple access mode indication signaling detected from the received downlink message to the terminal transmitter selection unit;

The terminal transmitter selection unit is used to indicate the selected transmitter of the terminal's uplink message to the terminal's uplink according to the rules pre-agreed by the system and according to the uplink multiple access mode indicated in the input terminal multiple access mode indication signaling message transmitting unit;

The terminal uplink message transmitting unit is configured to transmit the corresponding uplink message through the transmitter of the terminal uplink message indicated by the terminal transmitter selection unit.

further,

The terminal multiple access mode detection unit detects the multiple access mode indication signaling from the received random access message. In contention-based random access, the random access message is a random access response message and/or a contention resolution message, In non-contention based random access, the random access message is a random access preamble assignment message and/or a random access response message;

The terminal transmitter selection unit, the multiple access mode of the uplink indicated in the input instruction signaling, in addition to the SC-FDMA mode, also includes one of OFDMA, clustered SC-FDMA and N×SC-FDMA modes one or more species.

By adopting the method provided by the present invention, the base station can promptly notify the terminal of the multiple access mode of the terminal's uplink wireless link information transmission, and the information transmission of the downlink of the base station preferably adopts the OFDMA method; thus, the system is properly solved. In the case of multiple multiple address notifications, at the same time, the notification overhead can be configured according to the requirements of the multiple address notification content, so that the notification instructions are complete and flexible.

Description of drawings

Fig. 1 is a flowchart of a contention-based random access process;

Fig. 2 is a flowchart of a non-contention-based random access process;

FIG. 3 is a flow chart of Embodiment 1 of the multi-address mode notification method of the present invention;

Fig. 4 is the flow chart of embodiment 2 of the multi-address mode notification method of the present invention;

FIG. 5 is a flow chart of Embodiment 3 of the multi-address mode notification method of the present invention;

Fig. 6 is a structural block diagram of a wireless link information transmitting device used in a base station provided by the present invention;

FIG. 7 is a structural block diagram of a device for transmitting wireless link information used in a terminal provided by the present invention.

Detailed ways

The inventive concept of the method for notifying the multiple access mode of wireless link information transmission provided by the present invention is that the base station and the terminal agree in advance on the indication signaling of the uplink multiple access mode; when the base station transmits the downlink information, the indication signal The instruction is added to the downlink information, and the indication signaling is used to instruct the terminal to transmit the multiple access mode of the uplink information, and the uplink information includes control domain information and/or service domain information. The base station can notify the terminal of its uplink multiple access mode by sending a random access message. During the contention-based random access process, the base station adds the indication signaling to the random access response message and/or the contention resolution message Transmission: In the non-contention-based random access process, the base station adds the indication signaling to the dedicated random access preamble assignment message and/or random access response message and transmits it. In order to be compatible with the existing system, the base station preferably transmits its downlink information in OFDMA mode.

The above-mentioned inventive concept of the present invention will be described below in conjunction with the accompanying drawings and specific embodiments, so as to explain and illustrate the technical solution of the present invention in detail.

The multiple access mode notification method for wireless link information transmission of the present invention includes:

The base station and the terminal agree in advance on the indication signaling of the uplink multiple access mode; when the base station transmits the downlink information, the indication signaling is added to the downlink information, and the indication signaling is used to instruct the terminal to transmit the uplink In the multiple access mode of uplink information, the uplink information includes control domain information and/or service domain information.

The downlink information transmission of the base station preferably adopts the OFDMA method. Corresponding to the base station, the terminal also adopts OFDMA to receive the downlink information, and the downlink information includes control domain information and/or service domain information.

Since the random access process is an essential first step in establishing a wireless link, if the base station notifies the terminal of the multiple access mode of the uplink when sending the random access message, the terminal can be timely followed by the notified uplink multiple access mode. The uplink information transmission is carried out in multiple access mode. The following embodiment is a multiple access mode in which the base station notifies the terminal of the uplink by sending a random access message during the random access process.

Example 1

It is assumed that the uplink information transmission in the system adopts two multiple access methods, that is, the SC-FDMA method of the existing system and the second multiple access method clustered SC-FDMA.

The base station and the terminal agree in advance on the indication signaling of the uplink multiple access mode, and the "0" of the 1-bit indication signaling indicates the SC-FDMA mode, and the "1" of the 1-bit indication signaling indicates the clustered SC-FDMA mode.

When there is a terminal in the non-cell handover state to access the system, a contention-based random access process is triggered, as shown in Figure 3, including the following steps:

The base station notifies the terminal of its uplink multiple access mode through the downlink message of the random access process, including the following steps:

310: The terminal (UE) will randomly select a random access preamble (Preamble code) and transmit it to the base station (eNB) on the PRACH;

320: After detecting the transmission of the Preamble code, the base station returns a random access response message to the terminal, and adds a pre-agreed 1-bit indication signaling to the random access response message;

330: After receiving the random access response message, the terminal transmits uplink information according to the multiple access mode indicated by the 1-bit indication signaling;

If the terminal detects that the 1-bit indicating signaling value is "0", it uses SC-FDMA to transmit uplink information; if it detects that the 1-bit indicating signaling value is "1", it uses clustered SC-FDMA to transmit Uplink information.

After learning its uplink multiple access mode, the terminal transmits uplink information in the following random access process or connection process according to the above multiple access mode.

Example 2

Assuming that the uplink information transmission in the system adopts three multiple access methods, that is, SC-FDMA of the existing system, the second multiple access method clustered SC-FDMA, and the third multiple access method is N×SC-FDMA, here When there are multiple terminals in the system.

The base station and the terminal pre-agreed on the indication signaling of the uplink multiple access mode, and the "00" of the 2-bit indication signaling is used to indicate the SC-FDMA mode, and the "01" of the 2-bit indication signaling is used to indicate the clustered SC-FDMA mode. "10" of the 2-bit indication signaling indicates the N×SC-FDMA scheme.

When a terminal in a non-cell handover state wants to access the system, a contention-based random access process is triggered, as shown in Figure 4, including the following steps:

410: The terminal (UE) will randomly select a random access preamble (Preamble code) and transmit it to the base station (eNB) on the PRACH;

420: The base station returns a random access response message to the terminal after detecting that the Preamble code is transmitted;

The random access response message returned by the base station includes the following information: the serial number of the received Preamble code, the time adjustment amount corresponding to the received Preamble code, and the indication information of the uplink resource location allocated for the terminal.

430: After receiving the random access response message, the terminal transmits an uplink message on the uplink resource allocated by the base station according to the indication of the location of the uplink resource;

The uplink message transmitted by the terminal at least includes the unique ID of the terminal.

440: After receiving the uplink message from the terminal, the base station returns a contention resolution message to the terminal that has successfully accessed the contention resolution message, and pre-agreed 2-bit indication signaling is added to the contention resolution message.

After learning its uplink multiple access mode, the terminal transmits uplink information in the following random access process or connection process according to the above multiple access mode.

If the terminal detects that the 2-bit indicating signaling value is "00", it uses SC-FDMA to transmit uplink information; if it detects that the 2-bit indicating signaling value is "01", it uses clusteredSC-FDMA to transmit uplink information. link information; if it is detected that the 2-bit indicating signaling value is "10", the uplink information is transmitted in N×SC-FDMA mode.

Example 3

Assume that the uplink information transmission in the system adopts four multiple access methods, namely SC-FDMA of the existing system and the second multiple access method OFDMA, the third multiple access method clustered SC-FDMA and the fourth multiple access method N×SC-FDMA, there are multiple terminals in the system at this time.

The base station and the terminal pre-agreed on the indication signaling of the uplink multiple access mode, and the "00" of the 2-bit indication signaling is used to indicate the SC-FDMA mode, and the "01" of the 2-bit indication signaling is used to indicate the OFDMA mode. The "10" of the bit indication signaling indicates the clustered SC-FDMA mode, and the "11" of the 2-bit indication signaling indicates the N×SC-FDMA mode.

When there is a terminal in the cell switching state to access the system, a non-contention-based random access process is triggered, as shown in Figure 5, including the following steps:

510: The base station (eNB) assigns the dedicated random access preamble to the terminal (UE) through a dedicated random access preamble assignment message in the downlink direction;

520: The terminal transmits the random access preamble through the PRACH in the uplink direction;

530: The base station returns a random access response message to the terminal on the DL_SCH, and the pre-agreed 2-bit indication signaling is added to the random access response message.

After learning its uplink multiple access mode, the terminal transmits uplink information in the following random access process or connection process according to the above multiple access mode.

If the terminal detects that the 2-bit indicating signaling value is "00", it uses SC-FDMA to transmit uplink information; when it detects that the 2-bit indicating signaling value is "01", it uses OFDMA to transmit uplink information. information; when the 2-bit indicating signaling value is detected to be "10", the clusteredSC-FDMA method is used to transmit uplink information; when the 2-bit indicating signaling value is detected to be "11", N×SC-FDMA is used The FDMA method transmits uplink information.

Alternatively, the base station may also add the above-mentioned 2-bit indication signaling to the dedicated random access preamble assignment message in step 510, and after receiving the random access response message, the terminal transmits the uplink according to the multiple access mode indicated by the indication signaling. information.

As shown in Figure 6, it is a structural block diagram of a wireless link information transmitting device used in a base station (NodeB or eNB) provided by the present invention, the transmitting device 600 includes a terminal multiple access mode indicating unit 610, a base station transmitter selecting unit 620 and The base station downlink message transmitting unit 630, wherein:

The terminal multiple access mode indication unit 610 is connected with the downlink message transmitting unit 630 of the base station, and is used to learn the multiple access mode of the terminal uplink from various multiple access modes of the system, and fill in the terminal multiple access mode according to the pre-agreed rules of the system. The address mode indication signaling is output to the base station downlink message transmitting unit 630;

The base station transmitter selection unit 620 is connected with the base station downlink message transmitting unit 630, and is used to select the transmitter of the base station downlink message according to the multiple access mode (preferably adopting OFDMA mode) of the base station downlink message learned from the multiple access mode of the system The ID is indicated to the base station downlink message transmitting unit 630;

The base station downlink message transmitting unit 630 is configured to add the input terminal multiple access mode indication signaling to the downlink message to be delivered, and according to the transmitter ID of the base station downlink message indicated by the base station transmitter selection unit 620, in the The downlink message is transmitted on the corresponding transmitter.

The base station downlink message transmitting unit 630 adds the input terminal multiple access mode indication signaling to the random access message and sends it. In contention-based random access, the random access message is a random access response message and/or a contention resolution message; in non-contention-based random access, the random access message is a random access preamble assignment message and /or random access response message.

The multiple access mode of the terminal uplink message includes one or more of SC-FDMA, OFDMA, clustered SC-FDMA and N×SC-FDMA.

As shown in FIG. 7, it is a structural block diagram of a wireless link information transmitting device used in a terminal provided by the present invention. The transmitting device 700 includes a terminal multiple access mode detection unit 710, a terminal transmitter selection unit 720, and a terminal uplink Message transmitting unit 730, wherein:

The terminal multiple access mode detection unit 710 is configured to output the terminal uplink multiple access mode indication signaling detected from the received downlink message to the terminal transmitter selection unit 720;

The terminal transmitter selection unit 720 is configured to output the transmitter ID of the selected terminal uplink message to the terminal according to the uplink multiple access mode indicated in the input terminal multiple access mode indication signaling according to the pre-agreed rules of the system Uplink message transmitting unit 730;

The terminal uplink message transmitting unit 730 is configured to transmit a corresponding uplink message on a corresponding transmitter according to the input transmitter ID of the terminal uplink message.

The terminal multiple access mode detection unit 710 detects terminal multiple access mode indication signaling from the received random access message. In contention-based random access, the random access message is a random access response message and/or a contention resolution message; in non-contention-based random access, the random access message is a random access preamble assignment message and /or random access response message.

The terminal uplink multiple access mode indicated in the multiple access mode instruction signaling input by the terminal transmitter selection unit 720 includes, in addition to the SC-FDMA mode, one of OFDMA, clustered SC-FDMA, and N×SC-FDMA modes or more.

To sum up, the method for notifying the multiple access mode of wireless link information transmission provided by the present invention and its transmission device enable the terminal to obtain its uplink information transmission information in a timely manner through the instruction information added to the random access message issued by the base station. In the multiple access mode, the downlink information transmission of the base station preferably adopts the OFDMA mode. In this way, the problem of notification of multiple access modes under the condition that the system adopts multiple multiple access modes is properly solved, and at the same time, the system overhead can be configured according to the number of multiple access modes to be notified, so that the indication of the notification is complete and flexible.

Of course, the present invention can also have other various embodiments, and those skilled in the art can make various corresponding changes and deformations according to the present invention without departing from the spirit and essence of the present invention, but these corresponding Changes and deformations should belong to the scope of protection of the appended claims of the present invention.

Claims (10)

1. A multiple access mode notification method for wireless link information transmission, applicable to wireless communication systems that adopt multiple multiple access modes, said method comprising: The base station and the terminal agree in advance on the indication signaling of the uplink multiple access mode; The base station adds the indication signaling to the downlink information when transmitting the downlink information, the indication signaling is used to indicate the multiple access mode for the terminal to transmit the uplink information, the The uplink information includes control domain information and/or service domain information. 2. The method according to claim 1, wherein the base station adds the indication signaling to a random access message and sends it. 3. The method according to claim 2, characterized in that, in the contention-based random access process, the base station adds the indication signaling to a random access response message and/or a contention resolution message for transmission; In a non-contention based random access process, the base station adds the indication signaling to a dedicated random access preamble assignment message and/or a random access response message for transmission. 4. According to the method according to any one of claims 1 to 3, it is characterized in that, the uplink multiple access mode of the terminal, in addition to the single carrier frequency division multiple access SC-FDMA mode, also adopts the orthogonal One or more of frequency division multiple access OFDMA, clustered single carrier frequency division multiple access clustered SC-FDMA and N parallel single carrier frequency division multiple access N×SC-FDMA. 5. according to the described method of claim 4, it is characterized in that, When the uplink of the terminal adopts two multiple access modes, the indication signaling is configured as 1 bit, indicating the first multiple access mode through one indication value of the 1 bit, and indicating the first multiple access mode through the other value of the 1 bit One indication indicates the second multiple address mode; Or, when the uplink of the terminal adopts three multiple access modes, the indication signaling is configured as 2 bits, and the 2 bits include the first indication value, the second indication value, the third indication value and the fourth indication value Any three indications in the indications are respectively used as indication indications of the first multiple address mode, the second multiple address mode and the third multiple address mode; Or, when the uplink of the terminal adopts four multiple access modes, the indication signaling is configured as 2 bits, and the four indication values of the 2 bits are used as the first multiple access mode and the second multiple access mode respectively. The indication value of the multiple address mode, the third multiple address mode and the fourth multiple address mode. 6. according to the method described in claim 4, it is characterized in that, the transmission of described base station downlink information adopts described OFDMA mode, and described terminal receives described downlink information according to described OFDMA mode, and described downlink The path information includes control domain information and/or service domain information. 7. A wireless link information transmission device used in a base station, characterized in that the device includes a terminal multiple access mode indication unit, a base station transmitter selection unit and a base station downlink message transmission unit, wherein: The terminal multiple access mode indicating unit is connected with the downlink message transmitting unit of the base station, and is used to fill in the uplink multiple access mode of the terminal according to the system's pre-agreed rules according to the multiple access mode of the terminal learned from various multiple access modes of the system. The multiple access mode indication signaling is output to the base station downlink message transmitting unit; The base station transmitter selection unit is connected with the base station downlink message transmitting unit, and is used to indicate the transmitter of the selected base station downlink message to the selected base station according to the multiple access mode of the base station downlink message learned from the multiple access mode of the system The base station downlink message transmitting unit; The base station downlink message transmitting unit is used to add the input multiple access mode indication signaling to the downlink message to be delivered, and the transmitter of the base station downlink message indicated by the base station transmitter selection unit The downlink message is transmitted. 8. The device according to claim 7, characterized in that, In the terminal multiple access mode indication unit, the acquired multiple access mode of the terminal uplink includes, in addition to single carrier frequency division multiple access SC-FDMA mode, also includes orthogonal frequency division multiple access OFDMA, clustered single One or more of carrier frequency division multiple access clustered SC-FDMA and N parallel single carrier frequency division multiple access N×SC-FDMA; The base station downlink message transmitting unit adds the input terminal multiple access mode indication signaling to the random access message and sends it; in contention-based random access, the random access message is a random access response message and and/or a contention resolution message; in non-contention based random access, the random access message is a random access preamble assignment message and/or a random access response message. 9. A wireless link information transmission device used in a terminal, characterized in that the device comprises a terminal multiple access mode detection unit, a terminal transmitter selection unit and a terminal uplink message transmission unit connected in sequence, wherein: The terminal multiple access mode detection unit is configured to output the terminal uplink multiple access mode indication signaling detected from the received downlink message to the terminal transmitter selection unit; The terminal transmitter selection unit is configured to indicate the transmitter of the selected terminal uplink message to The terminal uplink message transmitting unit; The terminal uplink message transmitting unit is configured to transmit a corresponding uplink message through the transmitter of the terminal uplink message indicated by the terminal transmitter selection unit. 10. The device according to claim 9, characterized in that, The terminal multiple access mode detection unit detects the multiple access mode indication signaling from a received random access message, and in contention-based random access, the random access message is a random access response message and/or or a contention resolution message, in non-contention based random access, the random access message is a random access preamble assignment message and/or a random access response message; The terminal transmitter selection unit, the multiple access mode of the uplink indicated in the instruction signaling input by it, in addition to the SC-FDMA mode, also includes OFDMA, clustered SC-FDMA and N×SC-FDMA one or more of the ways.

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