WO2013185272A1

WO2013185272A1 - Method and apparatus for transmitting uplink data

Info

Publication number: WO2013185272A1
Application number: PCT/CN2012/076695
Authority: WO
Inventors: 赵悦莹; 邵家枫
Original assignee: 华为技术有限公司
Priority date: 2012-06-11
Filing date: 2012-06-11
Publication date: 2013-12-19
Also published as: CN104205705B; WO2013185408A1; CN104205705A

Abstract

The present invention relates to a method and apparatus for transmitting uplink data. The method comprises: receiving a Rank value from a base station; determining a sending mode of a user terminal according to the Rank value; and sending data to an uplink channel according to the determined the sending mode. According to embodiments of the present invention, the problem that uplink transmission efficiency is reduced since indication information takes effect asynchronously can be avoided.

Description

Uplink data transmission method and device

The present invention relates to the field of communications, and in particular, to an uplink data transmission method and apparatus. Background technique

Multiple Input Multiple Output (MIMO) is widely used in Long Term Evolution (LTE) and Universal Mobile Telecommunications System (UMTS). It is characterized by the simultaneous transmission of data through multiple antennas after multiple cuts. MIMO technology can not only increase the data transmission speed of the wireless network spectrum, but also occupy the spectrum resources and increase the signal receiving distance.

In the UMTS system, the base station is provided with a target load ROT target for characterizing the interference level, and measures the current real-time load, compares the current real-time load with the target load, determines the maximum power that the UE can currently transmit, and authenticates with the service (Serving Grant) , SG) is sent to the UE to control the transmit power of the UE. The UE can determine the currently transmitted data block length according to the obtained SG, thereby ensuring that the load of the base station does not exceed the target load, thereby controlling the interference level of the UE to the network.

In the UL MIMO scenario, the base station needs to determine the SG of the user primary/secondary stream, and also determines the rank rank value of the user channel. The rank value is used to indicate that the UE is in the mainstream single-stream mode or the dual-stream mode of the primary/secondary stream. Data transfer. Moreover, after determining the mainstream SG, the SG of the auxiliary stream is calculated by using the monthly SG offset and the mainstream SG. The UE needs to determine the mainstream SG, SG offset and rank information before it can perform uplink transmission.

However, in the prior art, the above information effective time standards are not specified. If the original rank value is indicated as single-stream transmission, and the new rank value is indicated as dual-stream transmission, but the new rank value is not valid, and the SG and SG offset are effective, the UE will still only use the indicated mainstream block length for uplink single-stream transmission. This will reduce the quality of the uplink transmission. Similarly, when the rank information is valid, and the SG and SG are valid after the offset, The rank information has been indicated as dual-stream transmission. Since the SG offset is not valid at this time, the UE cannot obtain the latest auxiliary stream authorization. Therefore, the UE can only use the original auxiliary stream block length to transmit the uplink auxiliary stream, which also reduces the uplink transmission efficiency. Summary of the invention

An object of the embodiments of the present invention is to provide an uplink data transmission method and apparatus, so that in the uplink MIMO system, three types of information that the base station gives to the UE can be synchronized.

To achieve the above object, the present invention provides an uplink data transmission method, where the method includes: receiving a rank Rank value from a base station;

Determining a transmission mode of the user terminal according to the rank rank value;

Data is transmitted to the uplink channel in accordance with the determined transmission mode.

On the other hand, an embodiment of the present invention provides an uplink data transmission indication method, where the method includes:

Generating a downlink channel to the user terminal UE according to the current uplink network state change information, and transmitting a service authorization SG information service authorization offset SG offset and a rank Rank value,

Sending a service authorization SG and a rank Rank value to the user terminal UE through the downlink channel;

After receiving the service grant SG and the rank rank value, the UE performs the uplink enhanced dedicated channel transmission according to the rank rank value and the service grant SG information at the corresponding uplink enhanced dedicated channel transmission time.

In a further aspect, the embodiment of the present invention provides an uplink data transmission device, where the device includes: a receiving unit, configured to receive a rank Rank value from a base station;

And an acquiring unit, configured to determine, according to the rank rank value, a sending mode of the user terminal, and a transmitting unit, configured to send data to the uplink channel according to the determined sending mode.

In another aspect, the embodiment of the present invention further provides an uplink data transmission indication device, where the device includes:

The indication information generating unit is configured to generate a downlink message according to the current uplink network state change information Transmitting, by the user terminal, the receiving service authorization SG and the rank Rank value;

The indication information sending unit is configured to send, by using the downlink channel, the receiving service authorization SG information and the rank Rank value to the user terminal UE;

a data receiving unit, configured to perform, according to the rank Rank value and the service authorization SG information, after receiving the service grant SG and the rank Rank value, the corresponding uplink enhanced dedicated channel transmission time Uplink enhanced dedicated channel transmission.

The embodiment of the present invention implements the foregoing information synchronization by receiving the service authorization SG, the service authorization offset SG offset, and the rank Rank value in the channel having the explicit effective time, so that the user terminal can authorize the SG according to the service authorization that is simultaneously effective. The authorization offset SG offset and the rank Rank value transmit data to the data channel, thereby avoiding the problem that the uplink transmission efficiency is lowered due to the fact that the indication information is not synchronized. DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the embodiments or the prior art description will be briefly described below. It is obvious that the drawings in the following description are only the present invention. For some embodiments, other drawings may be obtained from those skilled in the art without any inventive labor.

Figure 1 is a schematic diagram of transmitter transmission of the MIM0 system;

2 is a flowchart of an embodiment of an uplink data transmission method according to an embodiment of the present invention; FIG. 3 is a flowchart of another embodiment of an uplink data transmission method according to an embodiment of the present invention; FIG. 5 is a flowchart of still another embodiment of an uplink data transmission method according to an embodiment of the present invention; FIG. 6 is a flowchart of an uplink data transmission method according to an embodiment of the present invention; FIG. 8 is a flowchart of an embodiment of an uplink data transmission method according to an embodiment of the present invention; FIG. 8 is a flowchart of an embodiment of an uplink data transmission indication method according to an embodiment of the present invention; EMBODIMENT OF THE INVENTION A state reference picture in an uplink data transmission indication method; correction page (Article 91) FIG. 10 is a schematic diagram showing a state of a single stream mode according to an embodiment of the present invention; FIG.

FIG. 11 is a flowchart of an embodiment of an uplink data transmission indication method according to an embodiment of the present invention; FIG. 12 is a flowchart of an embodiment of an S1 102 according to an embodiment of the present invention;

FIG. 13 is a flowchart of an embodiment of an S1102 according to an embodiment of the present invention;

FIG. 14 is a structural diagram of an embodiment of an uplink data transmission apparatus according to an embodiment of the present invention; FIG. 15 is a structural diagram of an embodiment of an uplink data transmission indication apparatus according to an embodiment of the present invention. detailed description

The technical solution of the present invention will be further described in detail below through the accompanying drawings and embodiments. When the UE buffer is limited, the amount of buffered data is small, or the UE power is limited, and the data cannot be transmitted according to the length of the authorized data block given by the maximum SG, the UE needs to adjust the actual amount of transmitted data or reduce the transmit power. In this case, it may happen that the performance of the UE using dual stream transmission data is not as good as that of using a single stream. At this time, the UE needs to re-evaluate the number of sent ranks, and if it is determined that the single-stream transmission can obtain a large throughput, the UE will roll back to the single stream for data transmission, and the UE needs to determine to use single-stream transmission. SG information of the data. That is, the UE can select the rank information to transmit the uplink data.

In the prior art, the amount of data in the MIMO system is large, so there is only a transmission time interval TTI of 2 ms E-DCH. At this time, the timing of the SG from the reception to be effective is as follows.

The first type is the E-DCH service grant SG first received by the UE on the jth subframe of the E-AGCH control channel in the i-th system frame number SFN when the SG is transmitted in the E-AGCH channel. Is the t-th subframe of the E-DPDCH data channel frame in the i+s system frame number SFN. The specific calculation method is:

30; + 100 - (r _gfC//i „/256)l

30

( 1 )

Correction page (Article 91) _

Among them, the frame indicating the control channel is cheap. Assuming that i=o, j=l, ^τ ^^« is 0, then according to rounding up, you can get s=l, t=0, then prove that the SG information sent in the first subframe of the 0 system frame is The 0th subframe of the E-DPDCH data channel frame in the first system frame number SFN is valid.

Second, when the SG is sent in the E-RGCH channel of the serving cell, the UE first receives the E-DCH control information (SG) on the j-th subframe of the E-RGCH frame in the i-th system frame number SFN, Then, the j-th subframe of the E-DPDCH frame is valid in the i+1th system frame number SFN.

However, the above technique does not consider the effect of instructing the UE to use the rank rank value of the single-stream mode or the single-stream mode and the service grant offset SG offset of the secondary stream transmission block size according to the mainstream SG. Therefore, in order to realize the problem of multi-information synchronization, the embodiment of the present invention realizes the information synchronization by explicitly specifying the timing and the effective time of each channel, and avoids the problem that the uplink transmission efficiency is reduced due to the different information.

2 is a flowchart of an uplink data transmission method according to an embodiment of the present invention. As shown in the figure, the method includes:

Step S201: Receive a rank Rank value from a base station.

Specifically, the base station determines, according to the network condition, that the current user terminal is suitable for sending data in a single stream, or sends data in a dual stream, that is, determining a rank rank value.

Step S202, determining, according to the rank rank value, a sending mode of the user terminal.

Specifically, the user terminal determines, according to the obtained rank rank value, that the data should be sent to the uplink channel in a single stream or in a dual stream mode. Dual stream refers to sending data simultaneously by two transmit antennas of the mainstream and auxiliary streams, while the single stream only transmits data by the mainstream antenna.

For example, when the Rank value is 1, the user terminal sends data in the single-stream mode. When the Rank value is 2, the user terminal sends data by combining the primary and secondary streams.

Step S203: Send data to the uplink channel according to the determined transmission mode.

Specifically, the UE may receive the service authorization through the E-AGCH channel or the service E-RGCH. SG. The service authorization SG is a base station that measures the current real-time load through the network state change of the UE, and compares with the target load, and determines the maximum power that the UE can currently transmit through the load control algorithm, and sends the maximum power to the UE in the form of an SG. , thereby controlling the transmit power of the UE. The UE determines the current transmitted data block length according to the obtained SG, and uses the power transmission authorized by the base station to ensure that the load of the network receiving end does not exceed the target load, thereby controlling the interference level of the UE to the network and ensuring the performance of the network. In the dual-stream mode, the UE calculates the SG of the auxiliary stream according to the mainstream SG and the SG offset, and determines the data block and the transmit power of the auxiliary stream.

Specifically, the UE determines, according to the rank rank value, that the uplink data transmission is currently performed in a single stream or a dual stream, and obtains the mainstream transmission power and the data block size according to the SG.

In the single-stream mode, the user terminal determines the transmit power and data block size of the single-stream transmission according to the primary service authorization SG. In the dual-stream mode, the service authorization information of the auxiliary stream is obtained according to the currently received SG offset or the SG offset that is valid together with the two, and the uplink data transmission block size and transmission of the auxiliary stream are obtained according to the auxiliary stream service authorization. power.

With the foregoing embodiment, the UE determines, according to the received rank Rank value, that after the rank Rank value takes effect, it is determined that the data is sent in the single-stream or dual-stream mode, so that the user terminal can convert the transmission mode according to the state of the network, thereby avoiding poor network conditions. When the transmission mode is inappropriate, the transmission quality and efficiency are poor.

3 is a flowchart of an uplink data transmission method according to another embodiment of the present invention. As shown in the figure, the method includes:

Step S301, obtaining a service authorization SG by using a first dedicated channel;

Specifically, the first dedicated channel may be an E-AGCH channel or a service E-RGCH. If it is the former, the effective time of the SG is obtained according to the formula (1), (2), and if the latter is obtained according to the above provisions.

Step S302: Acquire an SG offset and a rank Rank by using a second dedicated channel.

Specifically, the second dedicated channel is a newly designed service grant offset and rank indication channel (SRICH), and the slot format of the channel is The three channels of F-TPICH, E-RGCH, and E-AGCH are the same or similar. However, the data transmitted by the SRICH channel can only be received by the UE indicating the upper phase MIMO, and the SG offset and the rank Rank information are transmitted in the channel.

The frame offset of the SRICH channel is specifically the frame offset of the E-AGCH or the frame offset of the E-RGCH of the serving cell. _Η = τ _Ε — _{Α (ΧΗ τΕ} ―

Step S303, obtaining a common effective time of the SG, the rank rank value, and the SG offset.

Specifically, the SG offset is defined to be the same as the effective time of the Rank value, and the effective time is equal to the SG effective time.

For example, if the SG is transmitting in the E-AGCH, the UE receives the SG offset information and the rank Rank value in the jth subframe of the second dedicated channel SRICH frame with the system frame number i, the uplink E-DCH channel. The transmission time is the t-th subframe time of the E-DCH Dedicated Physical Data Channel (E-DPDCH) frame in the i+th system frame number. For details, refer to formula (1), (2) to obtain the values of s and t.

Where T _DPCH , „ is the frame offset of the nth Dedicated Physical Channel (DPCH), when the downlink Partial Dedicated Physical Channel (F-DPCH) is configured, the DPCH in the formula Frame offset 3⁄4^„=F-DPCH frame offset ^τ F-DPCH,n

If the SG is sent in the E-RGCH of the serving cell, the UE receives the SG offset information and the rank Rank value in the jth subframe of the second dedicated channel frame with the system frame number i, the uplink E-DCH transmission time The j-th subframe time of the E-DPDCH frame in the i+1th system frame number is i, j is a positive integer.

That is, the E-DCH control information (SG) received on the jth subframe of the SRICH frame in the i-th system frame number SFN, and the j-th subframe of the E-DPDCH frame in the i+1th system frame number SFN Effective.

Step S304, after reaching the simultaneous effective time of the SG, the SG offset, and the rank rank value, transmitting data according to the SG, the rank rank value, and the SG offset uplink channel.

Specifically, reference may be made to FIG. 4, which is a method for transmitting an uplink data according to an embodiment of the present invention. Using the state reference map, it can be seen from the figure that the indication information received at the time of the X, after the Y time is simultaneously validated, the indication information used by the UE is a combination of the three types of indication information.

For example, in the scenario shown in Figure 4, Rank=2, the UE transmits data in dual stream mode, where the mainstream transmission power refers to SG, and the auxiliary stream refers to SG offset and SG. If Rank=l, the UE adopts the single-stream transmission mode. If there is no auxiliary stream, the SG offset is not needed.

Before the next SG and Rank take effect, that is, before the next E-DCH transmission time arrives, the UE transmits data in the mode indicated by the Rank value that is effective this time. Taking FIG. 4 as an example, the Rank=2 is that the UE is in the mainstream and the auxiliary stream. The dual-stream mode is used to transmit data, where the mainstream transmission power is based on the SG indication, and the auxiliary stream indication information is obtained by using the mainstream service authorization SG and the SG offset=K7 as common parameters, for example, the SG index number is authorized by the mainstream service. -K7 as the auxiliary stream SG index number. In practical applications, the list index value can be used for searching. After receiving the SG and SG offsets, the transmit power that should be executed by the mainstream/auxiliary stream can be obtained.

As for the received Rank value, the base station may send in explicit or implicit manner. The display transmission refers to directly informing the UE, Rank=l or Rank=2, and the Rank and SG offset are jointly coded in the second dedicated mode. Channel transmission, when the frame offset of the second dedicated channel is the E-AGCH frame offset, the channel format of the second dedicated channel is the same as or similar to the E-AGCH channel format, and the second dedicated channel can be sent. The information amount of n+p+m bits, or n+m bit information, where n is the bit value carrying the Rank information, p is the bit value carrying other predefined information, and m is the bit value carrying the SG offset information. n+p+m or n+m should be less than or equal to 6 bits, and n, p, and m are positive integers. For example, when n=l, p=l, and m=4, the bit information is carried by the lbit, the lbit carries the authorization range information, and the 4bits carries the SG offset information.

The implicit transmission is indicated by other reference values on the second dedicated channel. For example, when SG offset=0, it is determined that Rank=1.

With the foregoing embodiment, the UE can use the SG offset, SG, and Rank indications that are valid at the same time to perform data transmission, and can avoid the problem of reduced transmission quality or reduced transmission efficiency caused by the indication information being out of synchronization. FIG. 5 is a flowchart of an uplink data transmission method according to another embodiment of the present invention. As shown in the figure, the method includes:

Step S501, obtaining a service authorization SG by using a first dedicated channel;

Step S502: Acquire an SG offset and a rank Rank by using a second dedicated channel.

Specifically, the second dedicated channel is a newly designed service grant offset and rank indication channel (SRICH) slot format of the channel and F-TPICH, E-RGCH, E - The three channels of AGCH are the same or similar. However, the data transmitted by the SRICH channel can only be received by the UE indicating the upper phase MIM0, and the SG offset and the rank Rank information are transmitted in the channel.

Step S503: Acquire a second common uplink transmission time of the SG information and the SG offset, and update the received rank rank value according to the preset time period.

Specifically, the second common uplink transmission moment is a moment when the SG and the SG offset are specifically activated after being received.

The SG offset and the SG have the same effective time, that is, when the frame offset of the SRICH is the frame offset of the E-AGCH, the second common uplink transmission time of the SG information and the SG offset is specifically: Receiving a service grant offset SG offset from the base station on the jth subframe of the SRICH frame of i, the second common uplink transmission time being the tth subframe of the E-DPDCH frame in the i+s system frame number Time; wherein, i, j are positive integers, S=

30j + 100 -(T _DPCH 256) -150s

t= , where τ _ΰρσ/ „ is the frame of the nth dedicated physical channel DPCH

30 ^offset, Tdpch '"equal ^Tdpch E-AGCH applied in'."

When the frame offset of the SRICH is the frame offset of the E-RGCH of the monthly service cell, the second common uplink transmission time of the SG information and the SG offset is specifically:

Receiving an SG offset on a jth subframe of a SRICH frame with a system frame number i, where the second common uplink transmission time is a jth subframe moment of an E-DPDCH frame in the i+1th system frame number, where the i, j is a positive integer.

At the same time, the user terminal UE continuously updates the received rank Rank value according to a predetermined time period, usually a period of one subframe TTI, so that when the second common uplink transmission time of the SG and the SG offset arrives, the latest one TTI is received. The rank Rank value, as the effective rank Rank value, determines the current transmission mode.

Step S504, according to the SG, the rank rank value is used to transmit data to the uplink channel.

For example, if the UE receives the Rank=l in the closest TTI, the user terminal sends the data in the single-stream mode. Therefore, the current mainstream service grant SG determines the current mainstream transmission power and the data block size. SG offset, although the uplink transmission time is reached, but there is no auxiliary stream transmission in the single stream mode, so it is not necessary to determine the service authorization of the auxiliary stream through the SG offset.

If the Rank1 of the TTI received by the UE is the same, the user terminal sends the data in the dual-stream mode. Therefore, the current mainstream transmission power and the data block size are determined by the currently active mainstream service authorization SG. The service authorization of the auxiliary stream, and the transmission power and data block size of the auxiliary stream are obtained through the auxiliary stream service authorization.

According to the embodiment, the sending mode of the UE can be determined according to the recently received Rank value, and the network condition has been changed due to waiting for the SG, the Rank value, and the SG offset to be valid, and the sending mode is still determined according to the error Rank value. , caused by the problem of reduced data transmission quality.

FIG. 6 is a flowchart of an uplink data transmission method according to another embodiment of the present invention. As shown in the figure, the method includes: Step S601, obtaining a service authorization SG by using a first dedicated channel;

Step S602: Acquire an SG offset and a rank Rank by using a second dedicated channel.

Step S603: Acquire an uplink transmission time of the SG information, and update the received rank rank value and the service grant offset SG offset information according to a preset time period.

The SG effective time is the same as that of the foregoing embodiment, and therefore no further description is provided.

The difference from the foregoing embodiment is that, in this embodiment, the UE continuously updates the received rank rank value and SG offset according to a preset time period, and the preset time period is usually one subframe ΤΉ, that is, 2 mm.

At the time of the uplink transmission of the primary service authorization SG, that is, when the effective time comes, the rank Rank value and the SG offset received by the TTI closest to the effective time are taken as the current effective rank Rank value and the effective SG offset, according to the current effective The SG, the Rank value, and the SG offset are uplinked.

Step S604, according to the SG, the rank rank value is used to transmit data to the uplink channel.

For example, when the primary service authorization SG is valid, the UE receives the Rank=l, and the user terminal sends the data in the single-stream mode. Therefore, the current mainstream service authorization SG determines the current mainstream transmission power. And data block size, and SG offset, because there is no auxiliary stream in single stream mode Transmit, so there is no need to determine the service authorization of the secondary stream by SG offset.

If the closest received TTI of the UE receives Rank=2, the user terminal transmits data in the dual-stream mode. Therefore, the current mainstream transmission power and the data block size are determined by the currently active mainstream service authorization SG; The SG offset received by the TTI determines the service authorization of the auxiliary stream, and at the same time, obtains the transmit power and the data block size of the auxiliary stream through the auxiliary stream service authorization.

According to the embodiment, the sending mode of the UE can be determined according to the recently received Rank value, and the network condition has been changed due to waiting for the SG, the Rank value, and the SG offset to be valid, and the sending mode is still determined according to the error Rank value. , caused by the problem of reduced data transmission quality. Moreover, the auxiliary stream transmission power is determined according to the SG offset received by the closest one TTI, and the transmission efficiency is improved.

FIG. 7 is a flowchart of an uplink data transmission method according to another embodiment of the present invention. As shown in the figure, the method includes:

Step S701: Obtain a service authorization SG by using a first dedicated channel;

Step S702: Acquire an SG offset and a rank Rank by using a second dedicated channel.

The frame offset of the SRICH channel is specifically the frame offset of the E-AGCH or the frame offset of the E-RGCH of the serving cell. _Η = τ _Ε — _{Α (ΧΗ τΕ}

Step S703: Acquire a third common uplink transmission time of the SG information and the rank Rank value, and update the received service authorization offset SG offset according to a preset time period. Specifically, when the frame offset of the SRICH is the frame offset of the E-AGCH, the third common uplink transmission time of the SG information and the rank Rank value is specifically:

Receiving the rank Rank value from the base station on the jth subframe of the SRICH frame with the system frame number i, where the third common uplink transmission time is the tth of the E-DPDCH frame in the i+s system frame number Subframe time

Wherein i, j are positive integers,

30j + 100-(T _{D ffi B} /256) -1505

Where τ _ΟΚΗ „ is the frame offset of the _nth DPCH

30 is equal to ^Tdpch '" applied in E-AGCH.

When the frame offset of the SRICH is the frame offset of the E-RGCH of the serving cell, the third common uplink transmission time of the SG information and the rank rank value is specifically:

Receiving, in a jth subframe of a SRICH frame with a system frame number i, a rank Rank value, where the third common uplink transmission time is a jth subframe time of the E-DPDCH in the i+1th system frame number, i, j are positive integers.

In this embodiment, the UE continuously updates the received rank rank value according to a preset time period, and the preset time period is usually one subframe TTI, that is, 2 mm.

Step S704, according to the SG, the rank rank value is used to transmit data to the uplink channel.

The common uplink transmission time of the primary service authorization SG and the SG offset, that is, when the effective time comes, the rank Rank value received by the TTI closest to the effective time is taken as the current effective rank Rank value, according to the currently active SG, The rank value and the SG offset are uplinked.

For example, when the primary service authorization SG is valid, the UE receives the Rank=l, and the user terminal sends the data in the single-stream mode. Therefore, the current mainstream service authorization SG determines the current mainstream transmission power. And the data block size, and SG offset, although it has already taken effect, but there is no auxiliary stream transmission in the single stream mode, so it is not necessary to determine the service authorization of the auxiliary stream through SG offset. If the last TTI received by the UE is Rank=2, the user terminal sends data in the dual-stream mode. Therefore, the current mainstream service grant SG determines the current mainstream transmission power and data block size through the currently active mainstream service authorization SG. The SG offset determines the service authorization of the auxiliary stream, and at the same time, obtains the transmit power and the data block size of the auxiliary stream through the auxiliary stream service authorization.

FIG. 8 is a flowchart of an uplink data transmission method according to another embodiment of the present invention. As shown in the figure, the method includes:

Step S801: Obtain a service authorization SG and a rank Rank value by using the first dedicated channel.

Specifically, after the UE accesses the network, after the network status changes, the base station generates the mainstream service authorization SG value and the Rank information according to the current network environment, and may pass the E-AGCH channel or the service E-RGCH channel. The DCH two types of licensed channels send the mainstream service authorization SG and Rank information to the UE.

If the UE receives the former, the effective time is obtained according to formulas (1) and (2). If the UE receives the indication information through the latter, the SG effective time is obtained according to the serving cell E-RGCH channel.

Step S802, acquiring SG offset through the second dedicated channel;

Specifically, the dedicated channel is a newly designed SG offset Indication Channel (SICH). The data transmitted by the SICH channel can only be received by the UE supporting the uplink MIMO, and used to transmit the SG offset _{0. The} UE receives the SG offset generated by the network side according to the uplink transmission channel environment and the current network condition through the SICH channel.

The SICH channel frame offset is specifically a frame offset of the E-AGCH or a frame offset of the E-RGCH of the cell. τ = τ _Ε — _{Α (ΧΗ} τ„.

Step S803: Acquire a common effective time of the service authorization SG and the rank Rank value. Specifically, the Rank is the same as the SG offset and the Rank value corresponding to the SG offset and the Rank value. The dedicated channel transmission time is the same, if For E-AGCH channel reception, formula (1), (2) can be used to calculate the effective time. If the serving cell service E-RGCH is received, the effective time is calculated according to the service E-RGCH standard.

Step S804, updating the SG offset received according to the preset time period;

Specifically, the currently received SG offset is updated every other transmission time interval TTI, and a closest SG offset of the received service authorization SG and the rank effective value before the common effective time is used as Currently available SG offset.

Step S805: The data is transmitted to the uplink channel according to the currently valid SG, the rank value, and the available SG offset.

Specifically, the common effective time of the service authorization SG and the rank Rank value is taken as the current effective time, and the SG offset recently received by the common effective time is used as the current available SG offset, and the three are used as reference values, and are uplinked. The data channel transmits data.

FIG. 9 is a state reference diagram of the uplink data transmission method provided by the foregoing embodiment. It can be seen that the SG and the value of the SG received at time X are valid at the time SG and the value of the Rank at the time Y, and the SG offset received at the time Y is = 5 , The SG offset received at time X is K2, and the SG offset and the SG and Rank effective at the time Y are received as indication information.

Before the next SG and the Rank are in effect, the UE sends data in the mode indicated by the Rank value that takes effect this time. Take Figure 9 as an example. If Rank=2, the UE sends data in the dual-stream mode in which the mainstream and the auxiliary stream perform together, where the mainstream transmit power The SG indicator is used as the standard, and the auxiliary stream indication information is obtained by using the mainstream service authorization SG and SG offset=K5 as common parameters. For example, the mainstream service authorization SG-K5 is used as the auxiliary stream SG. In practical applications, the list index value can be used for searching. After receiving the SG and SG offset, the transmit power that should be executed can be obtained.

As for the received Rank value, the base station may send in explicit or implicit manner. The display transmission refers to directly informing the UE, Rank=l or Rank=2, and the Rank and SG offset are jointly coded in the second dedicated mode. Channel transmission, when the frame offset of the second dedicated channel is the E-AGCH frame offset, the channel format of the second dedicated channel is the same as or similar to the E-AGCH channel format, and the second dedicated channel can be sent. n+p+m bits of information, or can send n+m bits of information, where n To carry the bit value of the Rank information, p is a bit value carrying other predefined information, and m is a bit value carrying the SG offset information. n+p+m or n+m should be less than or equal to 6 bits, and n, p, m are positive integers. For example, if n=l, p=l, and m=4, the 1st bit carries the Rank information, the lbit carries the authorization range information, and the 4bits carries the SG offset information.

The implicit transmission is indicated by other reference values of the second dedicated channel. For example, when SG offset=0, it is determined that Rank=l.

FIG. 10 is a schematic diagram of a state in which the effective time Rank indicates a single stream mode. As shown in the figure, when the current M time Rank=l, there is no SG offset, but the effective time is the Rank=2 sent at the time P. , SG offset must be required as the reference value, so the SG offset received in the previous subframe is taken as the currently available SG offset. That is to say, it is assumed that the indication information valid at this time is the SG offset value K7 in the previous subframe, and the SG adopts the dual stream transmission mode.

With the above embodiment, the UE can obtain the update condition of the TTI in each transmission time interval, so that the UE can clear the transmission condition of the current channel in real time, and obtain a more accurate auxiliary stream authorization.

The following is a description of an uplink data transmission indication method according to an embodiment of the present invention, and FIG. 11 is a flowchart of the method. As shown in the figure, the method includes:

Step S1101: Generate SG, SG offset, and rank Rank values according to current network state change information.

Specifically, the base station measures the current real-time load and compares it with the target load, and determines, by using the load control algorithm, the maximum power that the UE can currently transmit, and indicates in the form of SG, and controls the transmit power of the UE. The UE may determine the currently transmitted data block length based on the obtained SG.

In the uplink MIM0 application, the same load control mechanism is also required to ensure network performance. The base station determines the maximum SG of the user by considering the power load of the primary and secondary streams simultaneously, and also determines the number of data flow ranks. If the dual-stream mode is used, after the mainstream SG is determined, the SG of the secondary stream can be calculated by using the SG offset and the mainstream SG. Therefore, the service grant offset SG offset needs to be generated.

Step S1102: Send a service authorization SG and a rank Rank correction page to the user terminal UE through the downlink channel (Article 91) value;

Specifically, the foregoing indication information is sent to the user terminal by using different channels, so that after receiving the indication information, the user terminal UE can adjust the transmission power and the transmission mode according to the foregoing information, and when the user terminal UE is instructed to use the dual-stream mode, , you also need to send the service authorization offset SG offset.

Step S1 103: After receiving the service authorization SG and the rank Rank value, the user terminal UE performs the uplink enhancement dedicated according to the rank Rank value and the service authorization SG information at the corresponding uplink enhanced dedicated channel transmission time. Channel transmission.

Specifically, before the next SG and Rank take effect, that is, before the next E-DCH transmission time arrives, the UE transmits data in the mode indicated by the current effective Rank value. If it is in the single-stream mode, the user terminal UE only refers to the SG and the Rank. If it is in the dual-flow mode, the SG offset needs to be referenced to obtain the auxiliary stream indication information.

As shown in FIG. 9 , in the case of Rank=2, the UE transmits data in a dual-stream mode in which the mainstream and the auxiliary stream perform together, wherein the mainstream transmission power is based on the SG indication, and the auxiliary stream indication information is authorized by the mainstream service SG and SG offset=K5. Calculated for common parameters, for example, the mainstream service authorizes SG-K5 as the secondary stream SG. The base station receives data transmitted by the user terminal UE according to the above indication.

Through the foregoing embodiment, the base station can send the receiving service authorization SG, the service grant offset SG offset and the rank rank value to the UE, so that the base station can adjust the transmission mode and power, and improve the transmission efficiency and quality.

Figure 12 is a flow chart of an embodiment of S 1 102 in the above embodiment. As can be seen from the figure, step S 1 102 includes:

Step S1201, sending the SG through the first dedicated channel;

Step S1202: Send an SG offset and a rank Rank value through the second dedicated channel. Correction page (Article 91) Specifically, the dedicated channel is a newly designed service grant offset and rank indication channel (SRICH) slot format of the channel and F-TPICH, E-RGCH, E-AGCH The three channels are the same or similar. However, the data transmitted by the SRICH channel can only be received by the UE indicating the upper phase MIMO, and the SG offset and the rank Rank are transmitted in the channel, and the frame offset of the SRICH channel is specifically the frame offset of the E-AGCH. Or the †贞 offset of the E-RGCH of the serving cell.

After receiving the indication message, the UE may perform the uploading of the data after the indication information is valid, and the transmission of the data may be prevented due to the invalidation of the indication information. problem.

Alternatively, the UE may also update the nearest one received value when the received SG and SG offset time comes, and use the Rank value as an indication to determine the current transmission mode.

The UE may also update the latest received one of the Rank value and the SG offset when the received SG effective time arrives, and use the Rank value as an indication to determine the current transmission mode. In particular, when the Rank value is 2, the SG offset received by the latest TTI is used as an indication to determine the secondary stream transmission power and the data block size.

The UE may also update the nearest TTI to receive the SG offset when the received common time of the S and the rank value comes, and use the current value that is effective at this time as an indication to determine the current transmission mode. In particular, when the Rank value is 2, the sending of the mainstream data is indicated by the effective SG as an indication, and the SG offset received by the nearest one is used as an indication to determine the secondary stream transmission power and the data block size.

FIG. 13 is a flowchart of another embodiment of S1102 in the embodiment shown in FIG. 11. As can be seen from the figure, step S1102 includes:

Step S1301: Acquire an SG and a rank Rank value by using a first dedicated channel.

Specifically, after the UE accesses the network, after the network status changes, the base station generates the mainstream service authorization SG value and the Rank information according to the current network environment, and can pass the E-AGCH channel or the correction page (Article 91). Serving E-RGCH Channels Two E-DCH two types of licensed channels transmit mainstream service grant SG and Rank information to the UE.

If the UE receives the former, the effective time is obtained according to formulas (1) and (2). If the UE receives the indication information through the latter, the SG effective time is obtained according to the E-RGCH channel of the serving cell.

Step S1302: Acquire an SG offset by using a second dedicated channel.

Specifically, the dedicated channel is a newly designed SG offset Indication Channel (SICH). The data transmitted by the SICH channel can only be received by the UE supporting the uplink MIMO, and used to transmit the service grant offset SG offset. The UE receives the SG offset generated by the network side according to the uplink transport channel environment and the current network condition through the SICH channel.

With the above embodiment, the UE can obtain the update situation at each transmission time interval, so that the UE can clarify the transmission condition of the current channel in real time, and obtain a more accurate auxiliary stream authorization.

It should be understood that, in the foregoing embodiment, the second dedicated channel SICH is merely a function-based naming, and should not be construed as limiting the core idea of the technical solution provided by the present invention.

In addition, in the foregoing embodiments, the Rank value may be sent by the base station in either explicit or implicit manner. The display transmission refers to directly informing the UE, Rank=l or Rank=2, and the implicit transmission is The other reference values are used as an indication. For example, when SG offset=0, it is determined that Rank=l.

FIG. 14 is a structural diagram of an uplink data transmission apparatus according to an embodiment of the present invention. The uplink data transmission apparatus may include, but is not limited to, a UE indicating UL MIMO. The device includes: a receiving unit 141, configured to receive current service authorization SG information, a rank Rank value;

The obtaining unit 142 is configured to obtain an uplink E-DCH transmission time of the service authorization SG and the rank rank value;

The transmitting unit 143 is configured to perform uplink enhanced dedicated channel transmission according to the rank rank value and the service grant SG information at the time of the uplink enhanced dedicated channel transmission.

The receiving unit 141 not only receives the SG and Rank values, but also receives in the dual stream transmission mode. The monthly service authorization offset SG offset _{0 is} specific, and the service authorization SG can be obtained through the E-AGCH channel or the service E-RGCH, and the service authorization offset SG offset and the rank Rank value are obtained through the designed SRICH dedicated channel; The service grant SG and the rank Rank value may be obtained through the E-AGCH channel or the serving E-RGCH, and the service grant offset SG offsets may be obtained through the SICH dedicated channel.

If the receiving unit 141 obtains the indication information in the previous manner, the obtaining unit 112 acquires the common effective time of obtaining the service authorization SG, the rank Rank value, and the service authorization offset SG offset, and then arrives at the After the service authorization SG, the service grant offset SG offset, and the simultaneous validity time of the rank Rank value, the data is transmitted to the uplink channel according to the service grant SG, the rank Rank value, and the service grant offset SG offset.

In addition, the UE may also update the latest received value of the TTI when the received SG and SG offsets come in, and use the Rank value as an indication to determine the current transmission mode.

The UE may also update the Rank value and the SG offset received by the latest TTI when the received SG effective time arrives, and use the Rank value as an indication to determine the current transmission mode. In particular, when the Rank value is 2, the SG offset received by the latest TTI is used as an indication to determine the secondary stream transmission power and the data block size.

The UE may also update the latest TTI to receive the SG offset when the received common time of the SG and the rank value comes, and use the current value that is effective at this time as an indication to determine the current transmission mode. In particular, when the Rank value is 2, the SG offset received by the nearest TTI is used as an indication to determine the secondary stream transmission power and the data block size.

If the receiving unit 141 obtains the indication information in the latter manner, the acquiring unit 142 acquires the common effective time of the service authorization SG and the rank Rank value by using the E-DCH entitlement channel frame offset, and updates through an update unit. The service authorization offset SG offset received according to the preset time; after the uplink enhanced dedicated channel transmission time, between the current effective time and the next simultaneous effective time, according to the current effective SG, the rank value, and the latest one Set time to receive SG offset transmits data to the upstream channel.

FIG. 15 is a structural diagram of an uplink data transmission indication apparatus provided by the present invention. The apparatus may include, but is not limited to, a base station. Specifically, as shown in FIG. 15, the apparatus includes:

The indication information generating unit 151 is configured to generate, according to the current network state change information, the downlink service channel to send the service authorization SG service grant offset SG offset and the rank Rank value to the user terminal UE;

The indication information sending unit 152 is configured to send the receiving service authorization SG information and the rank Rank value to the user terminal UE through the downlink channel.

The data receiving unit 153 is configured to: according to the rank Rank value and the service authorization SG information, after receiving the service grant SG and the rank Rank value, the corresponding uplink enhanced dedicated channel transmission time, Perform uplink enhanced dedicated channel transmission.

Specifically, the base station measures the current real-time load and compares it with the target load. The indication information generating unit 151 uses the load control algorithm to determine the maximum power that the UE can currently transmit, and is represented in the form of SG to control the transmit power of the UE. The UE may determine the current transmitted data block length according to the obtained SG. The power load of the primary and secondary streams is also considered to determine the maximum SG of the user, and the number of data flow ranks is also determined.

If the UE is allowed to adopt the dual-stream mode invention, the service authorization offset SG offset needs to be generated. After the mainstream SG is determined, the SG of the auxiliary stream can be calculated by using the SG offset and the mainstream SG.

The indication information sending unit 152 can send the generated indication information to the user terminal through different channels, so that after receiving the indication information, the user terminal UE can adjust the transmission power and the transmission mode according to the foregoing information.

For example, the service grant SG is sent through the E-AGCH channel, or the service E-RGCH, the service grant offset SG offset and the rank Rank value are sent through the SICH, or the service grant SG is obtained through the E-AGCH channel, or the service E-RGCH. The rank Rank value is obtained by the dedicated channel SICH to obtain the service grant offset SG offset.

The data receiving unit 153 receives the user terminal UE acquiring the service authorization SG and the rank correction page (Article 91) After the current effective time of the Rank value, between the simultaneous effective time and the next simultaneous effective time, the uplink channel transmission is indicated according to the rank Rank value, the service authorization SG information, and the available service grant offset SG offset. data.

A person skilled in the art should further appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both, in order to clearly illustrate hardware and software. Interchangeability, the composition and steps of the various examples have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.

The steps of a method or algorithm described in connection with the embodiments disclosed herein can be implemented in hardware, a software module executed by a processor, or a combination of both. The software module can be placed in random access memory (RAM), memory, read only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or technical field. Any other form of storage medium known.

The above described embodiments of the present invention are further described in detail, and the embodiments of the present invention are intended to be illustrative only. The scope of the protection, any modifications, equivalents, improvements, etc., made within the spirit and scope of the invention are intended to be included within the scope of the invention.

Claims

Claim

An uplink data transmission method, the method comprising:

Receiving a rank Rank value from a base station;

The uplink data transmission method according to claim 1, wherein determining the transmission mode of the user terminal according to the rank Rank value is specifically: determining, according to the value of the value, the user terminal in a single-stream or dual-stream mode. send data.

The uplink data transmission method according to claim 2, further comprising: receiving the service grant SG information from the base station and the service grant offset SG offset information when receiving the rank rank value from the base station.

The uplink data transmission method according to claim 3, further comprising: receiving the service grant SG information from the base station and the service grant offset SG offset information when receiving the rank Rank value from the base station, specifically ,

Receiving service authorization SG information through the first dedicated channel;

The service grant offset SG offset and the rank rank value are received through the second dedicated channel.

The uplink data transmission method according to claim 4, wherein the first dedicated channel is specifically an enhanced dedicated channel absolute grant channel, or an enhanced dedicated channel relative grant channel of the serving cell.

The uplink data transmission method according to claim 5, wherein the frame offset of the second dedicated channel is specifically a frame offset of the enhanced dedicated channel absolute grant channel, or the serving cell The frame offset of the enhanced dedicated channel relative to the grant channel.

The uplink data transmission method according to claim 6, wherein when receiving the rank Rank value from the base station, further comprising receiving the service authorization SG information from the base station and the service grant offset SG offset information The method includes: obtaining the first common uplink transmission time of the service authorization SG information, the rank Rank value, and the service authorization offset SG offset.

8. The method according to claim 7, wherein when the frame offset of the second dedicated channel is a frame offset of the enhanced dedicated channel absolute grant channel, the service grant SG information, The first common uplink transmission time of the rank Rank value and the service grant offset SG offset is specifically:

Receiving the service grant offset SG offset information and the rank Rank value on the jth subframe of the second dedicated channel frame with the system frame number i, where the first common uplink transmission time is the i+th system frame The t-th subframe time of the dedicated physical channel channel frame of the enhanced dedicated channel; "30j' + 100 - (T _otct/ , „/256

30J + 100- ^T DPCH, n ²⁵⁶ ) - ^{1 50s}

, said

30

i, j is a positive integer, where _1⁄2P ^ „ is the frame offset of the nth dedicated physical channel DPCH, and τ is applied to τ _ΟΚΗ , _η in the enhanced dedicated channel absolute grant channel.

The method according to claim 6, wherein when the frame offset of the second dedicated channel is a frame offset of the enhanced dedicated relative grant channel of the serving cell, the service grant SG The first common uplink transmission time of the information, the rank Rank value, and the service grant offset SG offset is specifically:

Receiving the service grant offset SG offset information and the rank Rank value on the jth subframe of the second dedicated channel frame with the system frame number i, where the first common uplink transmission time is the i+1th system The j-th subframe time of the dedicated channel dedicated physical data channel frame is enhanced in the frame number, and the i and j are positive integers.

10. The method according to any one of claims 6-9, wherein, at the first common uplink transmission time,

If it is determined that the user terminal sends data in the dual stream mode according to the rank Rank value, the user terminal sends data according to the service authorization SG information and the service grant offset SG offset to the uplink channel; If it is determined according to the rank Rank value that the user terminal transmits data in a single stream mode, the user terminal sends data according to the service grant SG information to the uplink channel.

The method according to claim 6, wherein the receiving, when receiving the rank Rank value from the base station, further comprising receiving the service grant SG information from the base station and the service grant offset SG offset information, further comprising And acquiring the second common uplink transmission time of the service authorization SG information and the service authorization offset SG offset, and updating the received rank Rank value according to a preset time period.

12. The method according to claim 11, wherein when the frame offset of the second dedicated channel is a frame offset of the enhanced dedicated channel absolute grant channel, the service grant SG information and The second common uplink transmission time of the service grant offset SG offset is specifically:

Receiving the service grant offset SG offset from the base station on the jth subframe of the second dedicated channel frame with the system frame number i, where the second common uplink transmission time is the i+s system frame number Enhancing the t-th subframe time of the dedicated channel dedicated physical data channel frame;

t = frame of channel DPCH

Offset, _1⁄2Pffi „equal to the τ DPCH applied in the enhanced dedicated channel absolute grant channel

13. The method according to claim 11, wherein when the frame offset of the second dedicated channel is a frame offset of the enhanced dedicated channel relative to the grant channel of the serving cell, the service grant SG The second common uplink transmission time of the information and service grant offset SG offset is specifically: receiving the service grant offset SG offset from the base station on the jth subframe of the second dedicated channel frame with the system frame number i And the second common uplink transmission time is a j-th subframe time of the enhanced dedicated channel dedicated physical data channel frame in the i+1th system frame number, where i and j are positive integers.

The method according to any one of claims 11 to 13, wherein in the second total Same as the transmission time,

If it is determined that the user terminal sends data in the dual stream mode according to the rank rank value received in the latest preset time period, the user terminal sends data according to the service grant SG information and the service grant offset SG offset to the uplink channel;

If it is determined that the user terminal transmits data in a single stream mode according to the rank rank value received in the latest preset time period, the user terminal transmits data according to the service grant SG information to the uplink channel.

The method according to claim 6, wherein the receiving, when receiving the rank Rank value from the base station, further comprising: receiving the service authorization SG information from the base station and the service grant offset SG offset information, further comprising And obtaining the uplink transmission time of the service authorization SG information, and updating the received rank Rank value and the service authorization offset SG offset information according to a preset time period.

16. The method according to claim 15, wherein, at the time when the service authorization SG information is transmitted upstream,

If it is determined that the user terminal sends data in the dual stream mode according to the rank Rank value received in the latest preset time period, the user terminal receives the service authorization offset according to the service authorization SG information and the latest preset time period. SG offset sends data to the uplink channel;

The method according to claim 6, wherein the receiving, when receiving the rank Rank value from the base station, further comprising receiving the service grant SG information from the base station and the service grant offset SG offset information, further comprising Obtaining the third common uplink transmission time of the service authorization SG information and the rank Rank value, and updating the received service authorization offset SG offsetc according to a preset time period

18. The method according to claim 17, wherein when the frame offset of the second dedicated channel is a frame offset of the enhanced dedicated channel absolute grant channel, the service grant SG information The third common uplink transmission time and the rank Rank value are specifically:

Receiving the rank Rank value from the base station on the jth subframe of the second dedicated channel frame with the system frame number i, where the third common uplink transmission time is the enhanced dedicated channel in the i+s system frame number The t-th subframe time of the physical data channel frame;

Frame of channel DPCH

The method according to claim 17, wherein when the frame offset of the second dedicated channel is a frame offset of an enhanced dedicated channel of the serving cell relative to an authorized channel, the service authorization The third common uplink transmission time of the SG information and the rank Rank value is specifically:

Receiving the rank Rank value from the base station on the jth subframe of the second dedicated channel frame with the system frame number i, where the third common uplink transmission time is the enhanced dedicated channel in the i+1th system frame number At the jth subframe moment of the physical data channel frame, the i, j are positive integers.

The method according to any one of claims 17 to 19, wherein, at the third common transmission time,

If it is determined that the user equipment sends the data in the dual stream mode according to the rank rank value, the user equipment sends the data to the uplink channel according to the service grant SG information and the service grant offset SG offset received by the latest preset time period;

If it is determined according to the rank rank value that the user equipment transmits data in a single stream mode, the user equipment transmits data according to the service grant SG information to the uplink channel.

The uplink data transmission method according to claim 3, further comprising: receiving the service grant SG information from the base station and the service grant offset SG offset information when receiving the rank Rank from the base station, specifically Receiving service authorization SG information and a rank Rank value through the first dedicated channel;

The service grant offset SG offset is received through the second dedicated channel.

The uplink data transmission method according to claim 21, wherein the first dedicated channel is specifically an enhanced dedicated channel absolute grant channel, or an enhanced dedicated channel relative grant channel of the serving cell.

The uplink data transmission method according to claim 22, wherein the frame offset of the second dedicated channel is specifically a frame offset of the enhanced dedicated channel absolute grant channel, or the serving cell The frame offset of the enhanced dedicated channel relative to the grant channel.

24. The method according to claim 23, wherein: when the frame offset of the second dedicated channel is equal to a frame offset of the enhanced dedicated channel absolute grant channel of the serving cell, the service grant SG information The fourth common uplink transmission time corresponding to the rank Rank value is specifically:

Receiving the rank Rank value from the base station on the jth subframe of the second dedicated channel frame with the system frame number i, where the fourth common uplink transmission time is dedicated to the enhanced dedicated channel in the i+s system frame number The t-th subframe time of the physical data channel frame;

t = frame of channel DPCH

The method according to claim 23, wherein when the frame offset of the second dedicated channel is a frame offset of the enhanced dedicated channel relative to the grant channel of the serving cell, the service authorization SG information The fourth common uplink transmission time corresponding to the rank Rank value is specifically:

Receiving the rank Rank value from the base station on the jth subframe of the second dedicated channel frame with the system frame number i, where the fourth common uplink transmission time is dedicated to the enhanced dedicated channel in the i+1th system frame number At the jth subframe moment of the physical data channel frame, the i, j are positive integers.

The method of any one of claims 24 or 25, wherein, at the fourth common uplink transmission time,

If the user terminal is configured to send data in the dual stream mode according to the rank rank value, the user terminal sends data according to the service grant SG information and the service grant offset SG offset received by the latest preset time period to the uplink channel;

If it is determined according to the rank rank value that the user terminal transmits data in a single stream mode, the user terminal transmits data according to the service grant SG information to the uplink channel.

An uplink data transmission indication method, the method includes: generating, according to current uplink network state change information, a service authorization SG information service authorization offset SG offset and a rank Rank value to a user terminal UE by using a downlink channel. ,

The uplink data transmission indication method according to claim 27, wherein the transmitting the service grant SG and the rank Rank value to the user terminal UE by using the downlink channel further includes transmitting a service grant offset to the user terminal UE SG offset.

The uplink data transmission indication method according to claim 27, wherein when the receiving the service authorization SG and the rank Rank value are sent to the user terminal UE by using the downlink channel, the method further includes indicating, in the rank Rank value, the user terminal according to the When the dual stream mode is transmitted, the service grant offset SG offset _{0 is} sent to the user terminal UE.

The uplink data transmission indication method according to claim 28 or 29, wherein the transmitting the service authorization SG and the rank Rank value to the user terminal UE by using the downlink channel further includes transmitting a service grant offset to the user terminal UE The amount is specific,

Sending service authorization SG information through the first dedicated channel;

The service grant offset SG offset and the rank Rank value are transmitted through the second dedicated channel.

The uplink data transmission indication method according to claim 28 or 29, wherein the transmitting the service authorization SG and the rank Rank value to the user terminal UE by using the downlink channel further includes sending a service authorization bias to the user terminal UE The shift SG offset is specifically

Receiving service authorization SG information and a rank Rank value through the first dedicated channel;

The uplink data transmission indication method according to claim 30 or 31, wherein the first dedicated channel is specifically an enhanced dedicated channel absolute grant channel, or an enhanced dedicated channel relative grant channel of the serving cell.

The uplink data transmission method according to claim 32, wherein the frame offset of the second dedicated channel is specifically a frame offset of the enhanced dedicated channel absolute grant channel, or the serving cell The frame offset of the enhanced dedicated channel relative to the grant channel.

34. An uplink data transmission device, where the device includes:

a receiving unit, configured to receive a rank Rank value from the base station;

An uplink data transmission indication device, the device includes: an indication information generating unit, configured to generate, according to current uplink network state change information, a downlink channel to send a receiving service authorization SG and a rank Rank value to a user terminal UE. ;