WO2010096961A1

WO2010096961A1 - Transmission message method, equipment and system

Info

Publication number: WO2010096961A1
Application number: PCT/CN2009/070543
Authority: WO
Inventors: 唐臻飞
Original assignee: 华为技术有限公司
Priority date: 2009-02-26
Filing date: 2009-02-26
Publication date: 2010-09-02
Also published as: CN101998585B; CN101998585A

Abstract

A transmission message method, equipment and system. The transmission message method includes of: receiving a random access response message; using a Transmission Time Interval (TTI) binding mode to send a message 3 if random access response grant content of the message indicates that transmission mode of the message 3 is the TTI binding mode. Another transmission message method includes of: receiving a random access response message; using a TTI binding mode to send message 3 if format 1A in a physical downlink control channel of the message indicates that transmission mode of the message 3 is the TTI binding mode. The embodiment of the present invention also provides the correlated equipment and system. The embodiment technical solution of the present invention can increase coverage of user equipment sending the message 3.

Description

Method, device and system for transmitting messages

Technical field

The present invention relates to the field of communications technologies, and in particular, to a method, device and system for transmitting messages. Background technique

The currently evolving Long Term Evolution (LTE) technology provides high spectral efficiency, wide-area coverage and support for high-speed mobility of user equipment.

In the LTE system, the user equipment performs random access by using a physical random access channel (PRACH) in the uplink channel, and the process is divided into two modes: competitive and non-competitive. The process of random access physical layer for competition is as follows:

The user equipment UE sends a random access preamble (message 1) to the network side device, for example, an evolved base station (eNB), and receives a random access response message (message 2) sent by the eNB, and receives the random access response message. The method includes a random access response grant (RBS), and the user equipment sends a message 3 on the uplink physical shared channel (PUSCH) according to the indication of the random access response granting content. The adaptive retransmission request (HARQ, Hybrid automatic Repeat Request) of the message 3 is supported at the time of transmission.

In the research and practice of the prior art, the inventor has found that the prior art has the following problems: In the prior art, when the user equipment sends the message 3 on the uplink physical shared channel, only the HARQ of the message 3 is supported, and in this mode, The coverage of the data packet carried in the message 3 is low, that is, the coverage of the message 3 is low, and the coverage of the entire system is degraded, so that some users at the edge of the cell cannot access the cell.

Summary of the invention

The embodiment of the present invention provides a method, a device, and a system for transmitting a message, which can improve the coverage of the message transmitted by the user equipment. The embodiment provided by the present invention is implemented by the following technical solutions:

An embodiment of the present invention provides a method for transmitting a message, including:

Receiving a random access response message;

If the random access response in the message permits the content indication message 3 to be transmitted in the TTI binding mode, the message 3 is sent in the TTI binding mode.

The embodiment of the invention further provides a method for transmitting a message, including:

Receiving a random access response message; If the mode 1 A of the physical downlink control channel of the message indicates that the transmission mode of the message 3 is the TTI binding mode, the message 3 is sent in the TTI binding mode.

Sending a random access response message, the random access response of the message granting the content or the format 1A of the physical downlink control channel indicating that the user equipment UE transmits the message 3 is a transmission time interval TTI binding mode;

Receiving a message 3 sent by the UE in a TTI binding manner.

The embodiment of the invention further provides a network side device, including:

a sending unit, configured to send a random access response message, where the random access response permitting content of the message or the format 1 A of the physical downlink control channel indicates that the user equipment UE transmits the message 3 in a transmission time interval TTI binding manner;

a receiving unit, configured to receive a message sent by the UE by using a transmission time interval TTI binding manner

3.

The embodiment of the invention further provides a user equipment, including:

a receiving unit, configured to receive a random access response message;

a determining unit, configured to: when the random access response permission content in the message or the transmission mode of the format 1A indication message 3 in the physical downlink control channel is a transmission time interval TTI binding mode, triggering the sending unit;

And a sending unit, configured to send the message 3 by using a transmission time interval TTI binding according to the triggering of the determining unit.

The embodiment of the present invention further provides a system, including a network side device and a user equipment, where the network side device is configured to send a random access response message, and the random access response of the message permits the content or the physical downlink control channel. The format 1A indicates that the user equipment UE transmits the message 3 in the manner of the transmission time interval TTI binding mode; and receives the message 3 sent by the UE in the TTI binding manner; the user equipment is configured to receive the random access response message; The random access response in the message permits the content or the transmission mode of the format 1A indication message 3 in the physical downlink control channel to be the transmission time interval TTI binding mode, and then the message 3 is sent in the TTI binding manner.

As shown in the foregoing technical solution, after the user equipment receives the random access response message, the user equipment discovers the random access response permission content or the physical downlink control channel in the message. Equation 1A indicates that the transmission mode of the message 3 is the TTI binding mode of the transmission time interval, and the message 3 is sent in the ΤΤΙ binding mode, thereby improving the coverage of the message 3, thereby improving the coverage of the entire system, so that more users at the cell edge can Access to the cell.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.

1 is a flow chart of transmitting a message according to Embodiment 1 of the present invention;

2 is a flowchart of a transmission message according to Embodiment 2 of the present invention;

3 is a flowchart of a transmission message according to Embodiment 3 of the present invention;

4 is a schematic structural diagram of a network side device according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a user equipment according to an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of a system according to an embodiment of the present invention.

detailed description

BRIEF DESCRIPTION OF THE DRAWINGS The technical solutions in the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative work are within the scope of the present invention.

In the LTE system, the protocol specifies that the user equipment at the cell edge can use the TTI binding mode for uplink transmission on the uplink uplink physical channel (PUSCH), that is, repeat transmission in multiple TTIs. The redundantly encoded data packet increases the coverage of the data packet, that is, increases the coverage of the message. When a message carrying a packet is sent in the TTI binding mode, the TTI in the same TTI bundle is transmitted to the same HARQ process.

The message 3 in the existing random access process cannot be sent in the TTI binding manner, and the embodiment of the present invention provides a method for supporting the message 3 in the random access process to be sent in the TTI binding manner, and provides related processing. Process.

Specifically, the embodiment of the present invention provides a method for transmitting a message, where the network side indicates that the user equipment will The message 3 of the random access process is sent in the manner of the transmission time interval (TTI), and the message 3 sent by the user equipment in the TTI binding mode is received, so that the coverage rate of the message 3 sent by the user equipment can be improved.

After the TTI binding mode is adopted, the device needs to notify the user that the device sends the message according to the TTI binding mode. The embodiments of the present invention provide multiple ways to implement an indication of a user equipment. In the embodiment of the present invention, the manner in which the user equipment needs to send the message 3 according to the TTI binding manner in the random access response message includes, but is not limited to, a combination of one or more of the following:

1) using a combination of a set value of one cell parameter or a set value of one or more cell parameters in a random access response grant content (RA Response Grant);

2) Cyclic redundancy check for random access response messages (CRC, Cyclical)

Redundancy Check)

3) Using a combination of a set value of one cell parameter of format 1A or a set value of one or more cell parameters in the physical downlink control channel of the random access response message.

1) receiving a random access response message;

2) If the random access response in the above message permits the content indication message 3 to be transmitted in the TTI binding mode, the message 3 is sent in the TTI binding mode.

The method for determining the transmission mode of the random access response permission content indication message 3 in the foregoing message is:

The one or more cells of the random access response permission content are read, and the value of the one or more cells indicates that the transmission mode of the message 3 is a TTI binding mode; or

- The danger is added.

As shown in the foregoing, after the user equipment receives the random access response message, if the transmission mode of the random access response permission content indication message 3 in the user equipment discovery message is the transmission time interval TTI binding mode, The message 3 is sent in the TTI binding mode, so that the coverage of the message 3 can be improved, and the coverage of the entire system can be improved, so that more users at the cell edge can access the cell.

1) receiving a random access response message; 2) If the mode 1A of the physical downlink control channel of the message indicates that the transmission mode of the message 3 is the TTI binding mode, the message 3 is sent in the TTI binding mode.

The format of the format 1A indication message 3 in the physical downlink control channel of the foregoing message is the transmission time interval. The TTI binding mode includes:

Reading the high bit of the power control command cell of the format 1A in the physical downlink control channel, and/or the adaptive retransmission request procedure number cell, and/or the downlink allocation sequence number, and/or the modulation and coding mode letter The value of the value indicates that the transmission mode of the message 3 is the transmission time interval TTI binding mode.

As shown in the foregoing, after the user equipment receives the random access response message, if the transmission mode of the format 1A indication message 3 in the physical downlink control channel of the user equipment discovery message is the transmission time interval TTI binding mode, The message 3 is sent in the TTI binding mode, so that the coverage of the message 3 can be improved, and the coverage of the entire system can be improved, so that more users at the cell edge can access the cell.

1) Sending a random access response message, the random access response of the message permitting the content or the format 1A of the physical downlink control channel indicating that the user equipment UE transmits the message 3 is a transmission time interval TTI binding mode;

2) receiving the message 3 sent by the UE in the TTI binding manner.

The manner in which the foregoing random access response granting content indicates that the UE transmits the message 3 is a TTI binding manner, including:

The value of the power control command cell in the random access response permission content is 111; or the value of the modulation and coding mode cell in the random access response permission content is in the range of 1011 to 1111; or

The value of the power control command in the random access response permission content is 111, and the value of the frequency hopping flag cell is 1; or, where the format 1A in the physical downlink control channel indicates that the UE transmits the message 3 in the TTI manner. Binding methods include:

The high bit of the power control command cell of the format 1A in the physical downlink control channel is a first preset value; and/or, The adaptive retransmission request process cell of the format 1A in the physical downlink control channel is a second preset value; and/or,

The downlink allocation sequence number of the format 1A in the physical downlink control channel is a third preset value; and

/ or,

The modulation and coding mode cell of the format 1A in the physical downlink control channel is a fourth preset value. It can be seen that, in the embodiment of the present invention, the manner in which the network side in the random access response permission content of the message or the physical downlink control channel indicates that the user equipment UE transmits the message 3 is the transmission time interval TTI binding manner, thereby The user equipment sends the message 3 in the TTI binding manner according to the indication, so that the coverage of the message 3 can be improved, and the coverage of the entire system can be improved, so that more users at the cell edge can access the cell.

The above three methods of transmitting messages are described in detail below through specific embodiments.

Embodiment 1 of the present invention:

In the first embodiment, the identifier of a cell parameter in the RA Response Grant or a combination of the set values of the above-mentioned cell parameters is used to indicate that the user equipment needs to perform TTI binding transmission on the message 3.

FIG. 1 is a flowchart of a message transmission according to an embodiment of the present invention. As shown in FIG. 1, the first embodiment includes steps:

Step 101: The network side device receives a random access preamble sent by the user equipment.

Step 102: The network side device sends a random access response message, and the random access response of the message grants the content RA Response Grant to indicate that the user equipment transmits the message 3 in a transmission time interval TTI binding manner;

The network side device can be indicated in the following ways:

1) In the RA Response Grant, the TPC command for scheduled PUSCH is set to indicate that the message 3 is to be bound and transmitted.

Preferably, the three bits of the power control command for scheduling the PUSCH are set to 111, that is, the maximum power transmission indicates that the message 3 is to be TTI-bound. Of course, you can also consider setting it to other values.

2) Passing power control commands and frequency hopping flags for scheduling PUSCH in the RA Response Grant The combination of the Hopping flag is set to indicate that the message 3 is to be transmitted in TTI binding mode. Preferably, the power control command for setting the scheduling PUSCH is 111, that is, the maximum power transmission; and the frequency hopping flag is set to 1, that is, frequency hopping; the combined format of the two cell parameters indicates that the message 3 is to be transmitted in a binding manner. . Of course, the power control command for scheduling the PUSCH may also be set to other values.

3) In the RA Response Grant, the truncated modulation and coding scheme is set to indicate that the message 3 is to be transmitted in a binding manner.

Preferably, it is set to take one of the values from 1011 to 1111 from 4 bits, indicating that the message 3 is to be transmitted in a binding manner.

It should be noted that, in step 202, only three indication manners are exemplified, but are not limited thereto. The set value may also be set for other cell parameters in the RA Response Grant to indicate that the message 3 is to be transmitted in TTI binding mode.

Step 103: The user equipment sends a message 3 to the network side device according to the TTI binding mode according to the random access response message.

After receiving the random access response message, the user equipment obtains the content of the RA Response Grant in the random access response message, and determines according to the set value of the read one cell parameter or the combination of the set values of one or more cell parameters. Whether the message 3 needs to be sent to the network side device according to the TTI binding mode, and if yes, the message is sent to the network side device on the uplink physical shared channel according to the TTI binding mode, and if not, the existing non-TTI binding mode is performed. transmission. For example, if the three bits of the power control command are 111, the user equipment determines that the random access response grants the content indication message 3 to be transmitted in the TTI binding mode, and sends the message 3 in the TTI binding mode.

It can be seen from the foregoing embodiment that the embodiment of the present invention sends a random access response message to the user equipment by using the TTI binding mode to send the message 3, and the random access response message uses a random access response. The combination of the set value of one cell parameter or the set value of one or more cell parameters in the RA Response Grant needs to perform TTI binding transmission on the message 3, so that the user equipment according to the random access response message The message 3 is sent according to the TTI binding manner, so that the coverage of the message 3 can be improved, and the coverage of the entire system can be improved, so that more users at the cell edge can access the cell. Embodiment 2 of the present invention:

In the second embodiment, the user equipment needs to perform TTI binding transmission on the message 3 by performing CRC masking on the content of the random access response message.

2 is a flow chart of transmitting a message according to Embodiment 2 of the present invention. As shown in FIG. 2, the second embodiment includes the following steps:

Step 201: The network side device receives a random access preamble sent by the user equipment.

Step 202: The network side device sends a random access response message, and the random access response permission content of the message uses a cyclic redundancy code check mode to mask the manner in which the user equipment transmits the message 3 as the transmission time interval TTI binding mode user equipment. ;

In the embodiment of the present invention, after the network side device determines that the user equipment needs to perform TTI binding mode transmission on the message 3, the network side device performs CRC encoding on the data of the random access response message to obtain a CRC check data block, and then CRC The data block is masked with the set sequence. The data of the random access response message includes a random access response grant content (RA Response Grant), which may be the entire content or part of the content of the random access response permitted content.

For example, the length of the CRC check data block is N (N is a natural number), expressed as CRC ( N ), CRC

The generator polynomial of (N) is an indecomposable polynomial under modulo operation. The length of the sequence to be masked is also set to N, denoted as Mask (N), which is in the original information sequence (can be a random access response permit) The entire content or part of the content) is followed by a sequence of n (n is a natural number) padding bits (for example, zero). Taking the value of 20 bits of the random access response permission content and adding 4 0 as an example. At this time, Ν=24, and Mask (24) is obtained, then the process of masking is expressed as:

CRC— Mask ( 24 ) = CRC ( 24 ). Mask ( 24 )

among them, . For an operation method, it can be a modulo operation or a bitwise inverse operation.

That is to say, if the network side device determines that the message 3 needs to be transmitted in the TTI binding manner, the entire content of the random access response permission content or part of the content thereof is subjected to a masking process to obtain a random connection after the masking process. In response to the permission content.

It should be noted that the foregoing setting sequence may be set as needed, and the length may also be changed. It may be a part of the random access response permission content, such as 10 bits of fixed resource allocation, or may be a random access response. A combination of several parts of the content is permitted. In addition, the calculation method of masking can also be performed in different ways, and the masking sequence can also be generated in different ways. Step 203: The user equipment sends a message 3 to the network side device according to the TTI binding mode according to the random access response message.

After receiving the random access response message, the user equipment may determine, according to the result of the CRC check, whether the message needs to be sent to the network side device according to the TTI binding mode. The user equipment performs the CRC check first. If the check is passed, the network side device does not perform CRC masking. This means that the T3 binding mode transmission is not required for the message 3. The existing non-TTI binding mode can be used for transmission. If the check fails, the network side device performs CRC masking. The CRC needs to be masked. After the mask is cleared, the data is verified. Therefore, the message 3 needs to be transmitted in TTI binding mode. Message 3 will be sent to the network side device on the uplink physical shared channel according to the indication and according to the TTI binding mode.

Taking the masking process in step 202 as an example, the unmasking process in this step may be:

Deblocking CRC_Mask ( 24 ) can be expressed as:

CRC ( 24 ) = CRC— Mask ( 24 ). Mask ( 24 )

among them. For an operation method, it can be a modulo operation or a bitwise inverse operation.

It can be seen from the foregoing embodiment 2 that after the message 3 is sent by using the TTI binding mode on the network side, the random access response message is sent to the user equipment by using the random access response message. The random access response of the response message permits the content to perform the cyclic redundancy check. The CRC masking mode indicates that the message 3 needs to be transmitted in the TTI binding manner, so that the user equipment sends the message according to the random access response message and according to the TTI binding manner. 3. Therefore, the coverage of the message 3 can be improved, and the coverage of the entire system can be improved, so that more users at the cell edge can access the cell.

Embodiment 3 of the present invention:

In the third embodiment, the user equipment needs to perform TTI binding on the message 3 by using a combination of a set value of one cell parameter of the format 1A or a set value of one or more cell parameters in the physical downlink control channel of the random access response message. Fixed mode transmission.

FIG. 3 is a flowchart of a third embodiment of the present invention. As shown in FIG. 3, the third embodiment includes the following steps:

Step 301: The network side device receives a random access preamble sent by the user equipment.

Step 302: The network side device sends a random access response message, where the format 1A of the physical downlink control channel of the message indicates that the user equipment transmits the message 3 in the manner of the transmission time interval TTI binding mode. User equipment

The network side device can be indicated in the following ways:

1) In the physical downlink control channel, the highest bit of the power control command for scheduling the uplink physical control channel (PUCCH) is set in the format 1A, indicating that the message 3 is to be TTI-bound.

Currently, the most significant bit of the power control command is reserved, so any value can be set to indicate that the message 3 is to be TTI-bound, for example, set to "1" to indicate that the message 3 is to be TTI-bound.

2) In the physical downlink control channel, the format 1A is set by the number of HARQ processes, indicating that the message 3 is to be transmitted in TTI binding mode.

Currently, the bits of the HARQ process number are reserved, so any value can be set to indicate that the message 3 is to be TTI bound. The bit of the HARQ process number preferably retains 3 bits for a Frequency Division Duplex (FDD) and 4 bits for a Time Division Duplex (TDD).

3) In the physical downlink control channel, format 1A, by setting the downlink allocation sequence number, indicates that the message 3 is to be transmitted in TTI binding mode.

Currently, the two bits of the downlink assignment sequence number are reserved, so any value can be set to indicate that the message 3 is to be TTI bound.

4) In the physical downlink control channel format 1A, by setting the modulation and coding mode, it is indicated that the message 3 is to be TTI bound. It is preferably set to any one of 1111, 11110, and 11101, indicating that the message 3 is to be TTI-bound.

It should be noted that, in step 302, only four indication manners are exemplified, but are not limited thereto. The other cell parameters in the format 1A in the physical downlink control channel may also be set with a set value indicating that the message 3 is to be TTI-bound. In the fixed mode transmission, the combination of the set values of the at least two cell parameters may also be used to perform TTI binding mode transmission on the message 3.

Step 303: The user equipment sends a message 3 to the network side device according to the TTI binding mode according to the random access response message.

After receiving the random access response message, the user equipment acquires the content in the format 1A of the physical downlink control channel in the random access response message, according to a set value of one cell parameter or more than one cell. The combination of the set values of the parameters determines whether the message 3 needs to be sent to the network side device according to the TTI binding mode. If yes, the message is sent to the network side device on the uplink physical shared channel according to the TTI binding mode, and if not, the message is received. There are ways to transfer. For example, in step 302, the network side device sets the most significant bit of the power control command to 1, and the user equipment in this step knows that the network side indicates that the user equipment performs TTI binding on the message 3 according to the bit. For transmission, message 3 is sent in TTI binding mode.

It can be seen from the foregoing embodiment that the embodiment of the present invention sends a random access response message to the user equipment by using the TTI binding mode to send the message 3, and the random access response message uses a random access response. The combined identifier of a cell parameter of format 1A or the set value of one or more cell parameters in the physical downlink control channel of the message needs to be transmitted in a TTI binding manner, so that the user equipment according to the random access response message The message 3 is sent according to the TTI binding manner, so that the coverage of the message 3 can be improved, and the coverage of the entire system can be improved, so that more users at the cell edge can access the cell.

The foregoing is a detailed description of a method for transmitting a message 3 by using a TTI binding manner in the embodiment of the present invention. Accordingly, the embodiments of the present invention provide related devices and systems.

Referring to FIG. 4, it is a schematic structural diagram of a network side device according to an embodiment of the present invention. The network side device in the embodiment of the present invention may be an evolved base station eNB.

As shown in FIG. 4, the network side device provided by the embodiment of the present invention includes a sending unit 401 and a receiving unit 402, where:

The sending unit 401 is configured to send a random access response message, where the random access response permission content of the message or the format 1A of the physical downlink control channel indicates that the user equipment UE transmits the message 3 in a transmission time interval TTI binding manner;

The receiving unit 402 is configured to receive the message 3 sent by the UE by using a transmission time interval TTI binding manner.

The value is in the range of 1011 to 1111, or the value of the power control command in the random access response permission content is 111, and the value of the frequency hopping flag cell is 1.

The random access response permission content of the foregoing message indicates that the user equipment UE transmits the message 3 by The transmission time interval TTI binding mode can include the following methods:

1) Preferably, the three bits of the power control command for scheduling the PUSCH are set to 111, i.e., the maximum power transmission indicates that the message 3 is to be TTI bound. Of course, you can also consider setting it to other values;

2) Preferably, the power control command for setting the scheduling PUSCH is 111, that is, the maximum power transmission; at the same time, the frequency hopping flag is set to 1, that is, frequency hopping; the combined format of the two cell parameters indicates that the message is to be

3 Perform TTI binding mode transmission;

3) For the truncated modulation and coding mode, it is preferably set to use from 1011 to 4 bits.

One of the values between 1111 indicates that the message 3 is to be transmitted in TTI binding mode.

It should be noted that only three indication manners are exemplified herein, but are not limited thereto. The other cell parameters in the random access response permission content may also be set with a set value indicating that the message 3 is to be TTI bound. transmission.

Further, the sending unit 401 may be further configured to mask all or part of the foregoing random access response grant content by using a cyclic redundancy check mode, thereby indicating that the message 3 needs to be transmitted in a transmission time interval binding manner, specifically Includes:

After CRC coding the data of the random access response message to obtain a CRC check data block, the CRC check data block is masked with the set sequence. The data of the random access response message includes a random access response grant content (RA Response Grant), which may be the entire content or part of the content of the random access response grant content.

Further, the sending unit 401 is further configured to: use a high bit of the power control command cell of the format 1A in the physical downlink control channel as a first preset value, and/or format 1A of the physical downlink control channel. The adaptive retransmission request process cell is taken as a second preset value, and/or the downlink allocation sequence number of the format 1A in the physical downlink control channel is taken as a third preset value, and/or the physical downlink is performed. The modulation and coding mode cell of format 1A in the control channel is taken as a fourth preset value. Preferably, the first preset value is 1 or 0, the second preset value is in the range of 000 to 111 or any value in the range of 0000 to 1111, and the third preset value is any one of the range of 00 to 11 Value, the fourth preset value is 11111 or 11110 or 11101.

FIG. 5 is a schematic structural diagram of a user equipment according to an embodiment of the present invention. As shown in FIG. 5, the user equipment provided by the embodiment of the present invention includes a receiving unit 501, a determining unit 502, and a sending unit 503, where: The receiving unit 501 is configured to receive a random access response message.

The determining unit 502 is configured to: when the random access response permission content in the foregoing message or the transmission mode of the format 1A indication message 3 in the physical downlink control channel is the transmission time interval TTI binding mode, triggering the sending unit 503;

The sending unit 503 is configured to send the message 3 by using a transmission time interval TTI binding manner according to the triggering of the determining unit 502.

The determining unit 502 is specifically configured to:

When the value of the power control command cell in the random access response grant content is 111, or the value of the modulation and coding mode cell in the content of the random access response grant is in the range of 1011 to 1111, or the foregoing random access When the value of the power control command in the response content is 111, and the hopping code check mode is masked, the transmission mode of the random access response grant content indication message 3 in the message is determined to be the transmission time interval TTI binding. the way;

When the high bit of the power control command cell of the format 1A in the physical downlink control channel is the first preset value, and/or the number of the adaptive retransmission request process cell of the format 1A in the physical downlink control channel is the second The preset value, and/or the downlink allocation sequence number of the format 1A in the physical downlink control channel is a third preset value, and/or the modulation and coding mode cell of the format 1A in the physical downlink control channel is the fourth preset. When the value is determined, the transmission mode of the format 1A indication message 3 in the physical downlink control channel in the foregoing message is determined as the transmission time interval TTI binding mode.

FIG. 6 is a schematic structural diagram of a system according to an embodiment of the present invention. As shown in FIG. 6, the system provided by the embodiment of the present invention includes: a network side device 601 and a user equipment 602, where:

The network side device 601 is configured to send a random access response message, where the random access response of the message or the format 1 A of the physical downlink control channel indicates that the user equipment 602 transmits the message 3 in a transmission time interval TTI binding manner; The user equipment 602 uses the message 3 sent by the TTI binding mode;

The user equipment 602 is configured to receive the random access response message; if the random access response permission content in the message or the transmission mode of the format 1A indication message 3 in the physical downlink control channel is the transmission time interval TTI binding mode, the TTI is tied. Send message 3 in a fixed manner.

Further, the network side device 601 in this embodiment may adopt the structure shown in FIG. 4, and the user The device 602 can adopt the structure shown in FIG.

In summary, after the user equipment receives the random access response message, the user equipment discovers the random access response permission content in the message in the message or the transmission mode of the format 1A indication message 3 in the physical downlink control channel. To transmit the time interval TTI binding mode, the T3 binding mode is used to send the message 3, so that the coverage of the message 3 can be improved, and the coverage of the entire system can be improved, so that more users at the cell edge can access the cell.

Further, the embodiment of the present invention may indicate that the user equipment sends the message 3 according to the TTI binding manner in multiple manners, for example, using a random access response to permit setting of one cell parameter in the content or setting of one or more cell parameters. The combination of the fixed value indicates that the message 3 needs to be transmitted in the transmission time interval binding mode; or the cyclic redundancy code check and the masking mode is used to indicate that the message 3 needs to be transmitted in the transmission time interval binding mode; or, the physical downlink is adopted. The set value of one cell parameter of the format 1A in the control channel or the indication of the set value of one or more cell parameters needs to be transmitted in the transmission time interval binding manner of the message 3.

A person skilled in the art can understand that all or part of the steps of implementing the above embodiments can be completed by a program to instruct related hardware, and the program can be stored in a computer readable storage medium, the storage. Media, such as: ROM/RAM, disk, CD, etc.

The embodiments of the present invention have been described in detail above, and the present invention has been described with reference to the specific embodiments thereof. The description of the above embodiments is only for facilitating understanding of the system and method of the present invention. Meanwhile, for those skilled in the art, The present invention is not limited by the scope of the present invention.

Claims

Rights request

A method for transmitting a message, comprising:

Receiving a random access response message;

The method for transmitting a message according to claim 1, wherein determining the transmission mode of the random access response grant content indication message 3 in the message is a TTI binding manner includes:

And reading the one or more cells of the random access response permission content, where the value of the one or more cells indicates that the transmission mode of the message 3 is a TTI binding mode; or

- The danger is added.

The method for transmitting a message according to claim 2, wherein the reading the random access response grants one or more cells of the content, and the value indication indication message 3 of the one or more cells The transmission mode of the TTI binding method includes:

The one of the cells is a power control command cell, and the value of the power control command cell is 111, and the transmission mode of the message 3 is TTI binding mode; or

The one cell is a modulation and coding mode cell, and when the value of the modulation and coding mode cell is in the range of 1011 to 1111, the transmission mode of the message 3 is indicated as a TTI binding mode; or

The plurality of cells are power control command cells and frequency hopping tag cells, and the value of the power control command is 111, and when the value of the frequency hopping tag cell is 1, the transmission mode of the message 3 is TTI binding mode.

The method for transmitting a message according to claim 2, wherein the determining comprises: ", if the content of all or part of the random access response in the message is allowed to be unmasked, cyclic redundancy If the code verification is successful, it is determined that all or part of the random access response permission content in the message is masked by a cyclic redundancy code check mode.

A method for transmitting a message, comprising:

The method for transmitting a message according to claim 5, wherein the transmission mode of the format 1A indication message 3 in the physical downlink control channel of the message is determined as a transmission time interval.

Reading a high bit of a power control command cell of format 1A in the physical downlink control channel, and/or an adaptive retransmission request procedure number cell, and/or a downlink allocation sequence number, and/or a modulation coding mode The value of the cell, the value indicating that the transmission mode of the message 3 is the transmission time interval TTI binding mode.

7. A method for transmitting a message, comprising:

Receiving a message 3 sent by the UE in a TTI binding manner.

The method for transmitting a message according to claim 7, wherein the manner in which the random access response granting content indicates that the UE transmits the message 3 is a TTI binding manner includes:

The value of the power control command cell in the random access response granting content is 111; or the value of the modulation and coding mode cell in the random access response granting content is in the range of 1011 to 1111; or

The value of the power control command in the random access response permission content is 111, and the value of the frequency hopping flag cell is 1; or

The method for transmitting a message according to claim 7, wherein the manner in which the format 1A in the physical downlink control channel indicates that the UE transmits the message 3 is a TTI binding manner includes:

The high bit of the power control command cell of the format 1A in the physical downlink control channel is a first preset value; and/or,

The adaptive retransmission request procedure number cell of format 1A in the physical downlink control channel is a second preset value; and/or,

The downlink allocation sequence number of format 1A in the physical downlink control channel is a third preset value; and

/or, The modulation and coding mode cell of format 1A in the physical downlink control channel is a fourth preset value.

10. A network side device, comprising:

3.

The network side device according to claim 10, wherein: the value of the element is 111, or the value of the modulation and coding mode cell in the content of the random access response grant is in the range of 1011 to 1111, Or the value of the power control command in the content of the random access response grant is 111, and the value of the frequency hopping flag cell is 1, or all or part of the content of the random access response grant is cyclically redundant. The code check method is added.

12. The network side device according to claim 10, wherein:

The sending unit is further configured to: use a high bit of the power control command cell of the format 1A in the physical downlink control channel as a first preset value, and/or a self of the format 1A in the physical downlink control channel. The adaptive retransmission request process cell is taken as a second preset value, and/or the downlink allocation sequence number of format 1A in the physical downlink control channel is taken as a third preset value, and/or the physics is to be The modulation and coding mode cell of format 1A in the downlink control channel is taken as a fourth preset value.

13. A user equipment, comprising:

a receiving unit, configured to receive a random access response message;

The user equipment according to claim 13, wherein the determining unit is specifically configured to:

When the power control command cell in the random access response grant content takes a value of 111, or The value of the modulation and coding mode cell in the random access response grant content is in the range of 1011 to 1111, or the power control command in the random access response grant content is 111, and the frequency hopping standard code is used. When the mode is masked, the random access response permission content indication message 3 in the message is determined to be a transmission time interval TTI binding mode;

When the high bit of the power control command cell of the format 1A in the physical downlink control channel is a first preset value, and/or the number of adaptive retransmission request processes of the format 1A in the physical downlink control channel is The second preset value, and/or the downlink allocation sequence number of the format 1A in the physical downlink control channel is a third preset value, and/or the modulation and coding mode cell of the format 1A in the physical downlink control channel is The fourth preset value determines that the transmission mode of the format 1A indication message 3 in the physical downlink control channel in the message is the transmission time interval TTI binding mode.

A system, comprising: a network side device and a user equipment, wherein the network side device is configured to send a random access response message, and the random access response of the message permits content or a physical downlink control channel. The format 1A indicates that the user equipment UE transmits the message 3 in the manner of the transmission time interval TTI binding mode; and receives the message 3 sent by the UE in the TTI binding manner; the user equipment is configured to receive the random access response message; The random access response in the message permits the content or the transmission mode of the format 1A indication message 3 in the physical downlink control channel to be the transmission time interval TTI binding mode, and then the message 3 is sent in the TTI binding manner.