WO2013104272A1

WO2013104272A1 - Method, system and device for transmitting and receiving uplink information

Info

Publication number: WO2013104272A1
Application number: PCT/CN2013/070040
Authority: WO
Inventors: 高雪娟; 林亚男; 沈祖康
Original assignee: 电信科学技术研究院
Priority date: 2012-01-13
Filing date: 2013-01-05
Publication date: 2013-07-18
Also published as: CN102572967B; CN102572967A

Abstract

The embodiments of the present invention relate to the technical field of wireless communications, in particular to a method, system and device for transmitting and receiving uplink information, which are used for solving the problem that uplink channels/signals in neighboring subframes collide in some Single Carrier-Frequency Division Multiple Access (SC-FDMA) symbols due to unaligned uplink transmission time for carriers in different Time Advance group (TA group).The method provided by the embodiments comprises: the use equipment with a plurality of uplink TA groups determines K SC-FDMA symbols in the current uplink subframe in the uplink carriers reserved for transmitting no uplink information, wherein K is a non-minus integer (501), and maps the uplink information to be transmitted on SC-FDMA symbols in the current uplink subframe in the uplink carrier, for transmitting uplink information, except for the reserved K SC-FDMA symbols, in order to transmit the uplink information (502). By the embodiments of the invention, the problem that the uplink channels/signals in the neighboring subframes collide in some SC-FDMA symbols due to unaligned uplink transmission time for carriers in different TA groups can be solved.

Description

Method, system and device for transmitting and receiving uplink information The application claims to be submitted to the Chinese Patent Office on January 13, 2012, the application number is 201210011116.6, and the invention name is "a method, system and device for transmitting and receiving uplink information" The priority of the Chinese Patent Application, the entire contents of which is incorporated herein by reference. Technical field

The present invention relates to the field of wireless communication technologies, and in particular, to a method, system and device for transmitting and receiving uplink information. Background technique

Long Term Evolution-Advanced (LTE-A) Release 10 (Release-10, Rel-10) uplink only supports Intra-band Carrier Aggregation (CA), which is considered to be wireless for each carrier. The signal propagation characteristics are similar. Therefore, each carrier adjusts the uplink transmission time based on the Time Advance (TA) obtained by the Random Access (RA) process on the Primary Component Carrier (PCC). That is, the uplink transmission time of multiple carriers is aligned, so the uplink transmission time on different carriers is aligned, and the uplink channel/signal in the current uplink subframe on different carriers and the previous and/or next adjacent uplink are not present. Upstream channel/signal collision in the frame.

In LTE-ARel-11, CAs with different inter-band uplinks and CA deployment schemes of macro base station (Macro e B) and remote radio head (RRH) can be supported. Since the propagation characteristics of the wireless signals in different frequency bands are different, and the propagation paths of the macro base station and the RRH are different, the time when the signals transmitted by different carriers arrive at the base station is different, that is, the transmission delay is different. Therefore, in Rel-11, different carriers may use different TAs (ie, Multi-TA) for uplink transmission time adjustment, and uplink TAs of multiple carriers may not be the same. To this end, the TA group concept is introduced. The carriers with the same or similar transmission delay are grouped into one group, which is called a TA group. The carriers belonging to the same TA group use the same uplink TA through the TA group. a random access RA procedure on one carrier to obtain a TA value corresponding to the group of carriers. When the group of carriers includes a PCC, the PRACH is sent on the PCC to obtain a TA corresponding to the group of carriers, when the group of carriers is supplemented When the component carrier (the SCO), the physical random access CHannel (PRACH) transmission on the SCC needs to be supported to obtain the TA corresponding to the group of carriers.

In addition, 3GPP TS 36.300 specifies that for an inter-band non-contiguous carrier aggregation scenario, the downlink transmission delay difference between different downlink carriers does not exceed 30 microseconds without using a unidirectional repeater (microsecond). The downlink carrier transmission time error of the base station side is up to 1.3 us. Therefore, the downlink reception time difference of each downlink carrier of the user equipment (User Equipment, UE) does not exceed 31.3 us. Considering that the uplink TA of each carrier is about twice the downlink transmission delay of the carrier, the uplink TA difference of different carriers is not More than 61.3us. Considering that a Single Carrier-Frequency Division Multiple Access (SC-FDMA) symbol length excluding the Cyclic Prefix (CP) is about 66.67us, the difference in uplink TA of different carriers is considered. No more than 1 SC-FDMA symbol.

The carriers belonging to the same TA group have the same uplink TA, and the uplink transmission times of multiple carriers are aligned. Therefore, the uplink channel/signal on different carriers in the current uplink subframe does not overlap with the previous and/or the next adjacent uplink. Upstream channel/signal collision in the frame. The carriers belonging to different TA groups have different uplink TAs, and the uplink transmission times of multiple carriers are not aligned. Therefore, the uplink channel/signal on different carriers in the current uplink subframe and the previous and/or next adjacent uplink subframes. The uplink channel/signal in the partial SC-FDMA symbol collision, considering that the difference of the uplink TA of different carriers does not exceed 1 SC-FDMA symbol, that is, the uplink channel/signal on different carriers in the current uplink subframe will be the same as the previous one. The uplink channel/signal in the adjacent uplink subframe collides with the first SC-FDMA symbol, and/or the uplink channel/signal on the different carriers in the current uplink subframe and the uplink channel in the next adjacent uplink subframe The /signal collides in the last SC-FDMA symbol, as shown in Figure 1A.

In addition, the Physical Uplink Control CHannel (PUCCH) and the Physical Uplink Shared CHannel (PUSCH) in the current uplink subframe may also be related to the sounding reference signal (SRS). The transmission is not in the last SC-FDMA collision. At this time, the shortened PUCCH format (truncated PUCCH format) and the PUSCH based on the last SC-FDMA symbol transmission SRS rate matching cannot avoid the SRS and the PUCCH and PUSCH in the same uplink. Collision in the frame. Considering that the difference of uplink TAs of different carriers does not exceed 1 SC-FDMA symbol, the PUCCH and PUSCH in the current uplink subframe may also collide with the SRS transmission in the current uplink subframe at the same time in the last two SC-FDMAs, or The PUCCH and PUSCH in the uplink subframe may also collide with the SRS transmission in the previous adjacent uplink subframe in the first SC-FDMA, as shown in FIG. 1B. Since excessive discarding of SRS will affect uplink scheduling, in multi-TA, SRS and PUCCH/PUSCH belonging to different TA groups should be supported for simultaneous transmission.

Rel-11 needs to support the PRACH transmission on the SCC, and it has been determined that the PRACH is not supported on multiple carriers in one uplink subframe at the same time, and the uplink of the PCC is out of synchronization, the UE is out of synchronization (requires the PC to pass the RA). After the process establishes uplink synchronization, the uplink data transmission can exist. That is, the PUSCH on the PCC and the PUSCH/SRS on the SCC are not transmitted at the same time. The collision situation of the uplink channel/signal in the same uplink subframe is shown in Table 1. . In particular, when the PRACH and other uplink channels/signals are simultaneously transmitted in one uplink subframe, since the PRACH transmission assumes that there is no uplink TA, the latter multiple SC-FDMA symbols of the PRACH may be in the next adjacent uplink subframe. Other uplink channel collisions, and because of multiple TAs, different SC-FDMA symbols in the PRACH are different from the uplink channel/signal collision in the next uplink subframe, as shown in FIG. 1C, the fifth last SC of the PRACH The -FDMA symbol collides with the first SC-FDMA symbol of the PUCCH on carrier 1 in subframe i+i, the last 4 SC-FDMA symbols of PRACH and the PUCCH and carrier 2 on carrier 1 in subframe i+1 The partial SC-FDMA symbols of the PUSCH collide at the same time.

Table 1 Possible collision scenarios of different uplink channels/signals in the same uplink subframe Under Rel-11 multi-TA, when uplink channels/signals supporting PRACH, PUCCH, PUSCH, SRS, etc. are simultaneously transmitted in the same uplink subframe, The power control method in the subframe of Rel-10 is no longer applicable, so that in Rel-11, the uplink transmission times of carriers belonging to different TA groups are not aligned, and the uplink channel on different carriers in the current uplink subframe/ The signal will collide with the partial SC-FDMA symbol with the upstream channel/signal in the previous and/or next adjacent uplink subframe.

In summary, in Rel-11, the uplink transmission time misalignment of carriers belonging to different TA groups causes the uplink channel/signal to collide in part of the SC-FDMA symbol. Summary of the invention

A method, a system, and a device for transmitting and receiving uplink information provided by the embodiments of the present invention are used to solve the problem that the carriers belonging to different TA groups are not aligned due to uplink transmission time in the Rel-11 existing in the prior art. The problem that the upstream channel/signal collides in the partial SC-FDMA symbol.

A method for transmitting uplink information provided by an embodiment of the present invention includes:

A user equipment having multiple uplink timing advance TAs, determining that the uplink carrier reserves K single-carrier frequency division multiple access in the current uplink subframe, and does not transmit uplink information, where K is a non-negative integer;

The user equipment maps the uplink information to be transmitted to the uplink carrier, and transmits the SC-FDMA symbol for transmitting uplink information except the K SC-FDMA symbols in the current uplink subframe.

A method for receiving uplink information according to an embodiment of the present invention includes:

The network side device determines that the uplink carrier reserves K SC-FDMA symbols in the current uplink subframe, and does not transmit uplink information, where K is a non-negative integer;

The network side device receives the uplink information transmitted by the user equipment with multiple uplink TAs in the current uplink subframe by using the SC-FDMA symbol other than the SC-FDMA symbol that does not transmit the uplink information.

A user equipment for transmitting uplink information, which is provided by the embodiment of the present invention, includes:

a first determining module, configured to: when there are multiple uplink TAs, determine that the uplink carrier reserves K in the current uplink subframe

The SC-FDMA symbol does not transmit uplink information, where K is a non-negative integer;

And a transmission module, configured to map the uplink information to be transmitted to the uplink carrier, and transmit the SC-FDMA symbol for transmitting uplink information, except for the K SC-FDMA symbols, in the current uplink subframe. A network side device for receiving uplink information, which is provided by the embodiment of the present invention, includes:

a second determining module, configured to determine that the uplink carrier reserves K SC-FDMA symbols in the current uplink subframe, and does not transmit uplink information, where K is a non-negative integer;

And a receiving module, configured to receive uplink information sent by the user equipment that has multiple uplink TAs by using an SC-FDMA symbol other than the SC-FDMA symbol that does not transmit uplink information in the current uplink subframe by using the uplink carrier.

A system for transmitting uplink information according to an embodiment of the present invention includes:

When the user equipment is configured to have multiple uplink TAs, it is determined that the uplink carrier reserves K uplink symbols in the current uplink subframe, does not transmit uplink information, and maps the uplink information to be transmitted to the uplink carrier in the current uplink subframe. Transmitting on an SC-FDMA symbol for transmitting uplink information other than the K SC-FDMA symbols, where K is a non-negative integer;

The network side device is configured to determine that the uplink carrier reserves K uplink symbols in the current uplink subframe, does not transmit uplink information, and uses the uplink carrier to save the uplink information in the current uplink subframe except for the SC-FDMA symbol that does not transmit the uplink information. The SC-FDMA symbol receives the uplink information transmitted by the user equipment having multiple uplink TAs.

Since it is determined that the uplink carrier reserves K uplink symbols in the current uplink subframe, the uplink information is not transmitted, thereby avoiding the Rel-11, the carriers belonging to different TA groups are in the adjacent subframes caused by the uplink transmission time misalignment. The upstream channel/signal collides in a portion of the SC-FDMA symbol. DRAWINGS

1A is a schematic diagram of simultaneous transmission under the first Multi-TA in the background art;

1B is a schematic diagram of simultaneous transmission under a second Multi-TA in the background art;

1C is a schematic diagram of simultaneous transmission under the second Multi-TA in the background art;

2 is a schematic structural diagram of a system for transmitting uplink information according to an embodiment of the present invention;

3 is a schematic structural diagram of a user equipment according to an embodiment 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 flowchart of a method for transmitting uplink information according to an embodiment of the present invention;

6 is a schematic flowchart of a method for receiving uplink information according to an embodiment of the present invention;

FIG. 7 is a schematic diagram of a first transmission according to an embodiment of the present invention; FIG.

8 is a schematic diagram of a second transmission according to an embodiment of the present invention;

9 is a schematic diagram of a third transmission according to an embodiment of the present invention;

FIG. 10 is a schematic diagram of a fourth transmission according to an embodiment of the present invention; FIG.

FIG. 11 is a schematic diagram of a fifth transmission according to an embodiment of the present invention; FIG.

FIG. 12 is a schematic diagram of a sixth transmission according to an embodiment of the present invention; FIG.

13A is a schematic diagram of a seventh transmission according to an embodiment of the present invention; 13B is a schematic diagram of an eighth transmission according to an embodiment of the present invention;

FIG. 13C is a schematic diagram of a ninth transmission according to an embodiment of the present invention. detailed description

The embodiment of the present invention has a plurality of user equipments of the uplink TA, and determines that the uplink carrier reserves K uplink symbols in the current uplink subframe, does not transmit uplink information, and maps the uplink information to be transmitted to the uplink carrier in the current uplink. The transmission is performed on SC-FDMA symbols for transmitting uplink information except for K SC-FDMA symbols. The uplink subframe is reserved for the K-FDMA symbols in the current uplink subframe, and the uplink information is not transmitted, thereby avoiding adjacent subframes in the Rel-11, the carriers belonging to different TA groups are not aligned due to the uplink transmission time. The upstream channel/signal in the collision occurs in the partial SC-FDMA symbol.

The embodiments of the present invention are further described in detail below with reference to the accompanying drawings.

In the following description, the implementation of the cooperation between the network side and the user equipment side will be described first. Finally, the implementations from the network side and the user equipment side will be described separately, but this does not mean that the two must be implemented together. In fact, When the network side is implemented separately from the user equipment side, the problems existing on the network side and the user equipment side are also solved, but when the two are combined, a better technical effect is obtained.

As shown in FIG. 2, the system for transmitting uplink information in the embodiment of the present invention includes: a user equipment 10 and a network side device 20. The user equipment 10 with multiple uplink TAs is configured to determine that the uplink carrier reserves K uplink symbols in the current uplink subframe, does not transmit uplink information, and maps the uplink information to be transmitted to the uplink carrier in the current uplink subframe. The transmission is performed on SC-FDMA symbols other than K SC-FDMA symbols for transmitting uplink information, where K is a non-negative integer.

It should be noted that the foregoing SC-FDMA symbols for transmitting uplink information except for the K SC-FDMA symbols are: in the SC-FDMA symbol included in the uplink channel in one uplink subframe, except for the reserved K SC-FDMA symbols, SC-FDMA symbols for transmitting Reference Signals (RS), and SC-FDMA symbols reserved for SRS transmission when there is an SRS transmission or when the current subframe is a system SRS subframe SC-FDMA symbol.

The network side device 20 is configured to determine that the uplink carrier reserves K uplink symbols in the current uplink subframe, and does not transmit uplink information, and the uplink carrier does not transmit the uplink information in the current uplink subframe except the SC-FDMA symbol. The other SC-FDMA symbols receive the uplink information transmitted by the user equipment 10 having a plurality of uplink TAs.

Preferably, the uplink information of the embodiment of the present invention includes but is not limited to at least one of the following information:

Positive acknowledgment (ACK), Negative acknowledgment (NACK), Channel State Information (CSI), Scheduling Request (SR), SRS, UpLink data, and preamble ( Preamble) sequence, where CSI includes channel quality indicator (CQI), pre-coding matrix indicator (PMI), rank indicator ( Rank) Indication, RI), Precoding Type Indicator (PTI) and other information. The uplink information transmitted on the PUCCH refers to: one or more combinations of ACK/NACK, periodic CSI, and SR; the uplink information transmitted on the PUSCH refers to: uplink data or uplink data and ACK/NACK, periodic/non- One or more combinations of periodic CSIs; SRS is an uplink signal that occupies only one SC-FDMA symbol transmission in one uplink subframe.

In the implementation, there are various ways for the user equipment 10 and the network side device 20 to determine K SC-FDMA symbols, and several examples are as follows:

Method 1, network side:

The network side device 20 directly configures K SC-FDMA symbols for the user equipment by using high-level signaling or physical downlink control channel (PDCCH) signaling;

User equipment side:

The user equipment 10 directly determines K SC-FDMA symbols according to the configuration of the high layer signaling or the PDCCH signaling. Preferably, the high layer signaling is Radio Resource Control (RRC) signaling or Medium Access Control (MAC) signaling.

The second mode, the user equipment 10 and the network side device 20 pre-arrange K K-FDMA symbols;

Then, the user equipment 10 and the network side device 20 determine K SC-FDMA symbols according to the prior agreement with the other party, respectively.

Mode 3, network side:

The network side device 20 notifies the K SC-FDMA symbols to the user equipment in advance through the high layer signaling or the PDCCH signaling, and further configures whether the user equipment 10 reserves K in the current uplink subframe by using a specific bit field in the PDCCH signaling. SC-FDMA symbols. The PDCCH is a PDCCH in a downlink subframe corresponding to ACK/NACK feedback in the current uplink subframe (including but not limited to a PDCCH carrying a DL grant (downlink scheduling grant) and/or indicating a downlink semi-persistent scheduling (Semi-Persistent) Scheduling, SPS) PDCCH of resource release, and/or PDCCH corresponding to PUSCH in the current uplink subframe.

User equipment side:

The user equipment 10 determines, according to a specific bit field in the PDCCH signaling, whether there is a reserved in the current uplink subframe.

The SC-FDMA symbol, when it is determined to exist, further determines that the K SC-FDMA symbols pre-configured by the high layer signaling or the PDCCH signaling are the reserved K SC-FDMA symbols, and when the determination does not exist, determine the current uplink subframe. There is no reserved SC-FDMA symbol, wherein the PDCCH is defined as the above network side.

For example, in the PDCCH signaling, the original 1 bit is reused or a new 1 bit is added as the indication information of whether there is a reserved SC-FDMA symbol.

It should be noted that the embodiments of the present invention are not limited to the foregoing three manners, and other manners for determining K SC-FDMA symbols are equally applicable to the embodiments of the present invention.

Preferably, for the user equipment 10 and the network side device 20, different uplink carriers correspond in the same uplink subframe. The Ks are the same or different; the same uplink carrier is the same or different in the corresponding uplink subframes.

In an implementation, for the user equipment 10 and the network side device 20, the two SC-FDMA symbols are the first SC-FDMA symbols in the current uplink subframe; or

SC one SC-FDMA symbol is the last K SC-FDMA symbols in the current uplink subframe; or

K SC-FDMA symbols are the first K1 SC-FDMA symbols and the last K2 in the current uplink subframe

SC-FDMA symbol, where K1+K2=K.

Preferably, for the user equipment 10 and the network side device 20, if there are both SRS and the reserved SC-FDMA in the current uplink subframe, then: the last SC-FDMA symbol transmission of the SRS in the current uplink subframe. And the K SC-FDMA symbols are the first K SC-FDMA symbols in the current uplink subframe; or the SRS is transmitted in the first SC-FDMA symbol in the current uplink subframe, and the K SC-FDMA symbols are The last K SC-FDMA symbols in the current uplink subframe; specifically, if the SRS is transmitted in the last SC-FDMA symbol in the current uplink subframe, the K SC-FDMA symbols are in the current uplink subframe. The first K SC-FDMA symbols; if the SRS is transmitted in the first SC-FDMA symbol in the current uplink subframe, the K SC-FDMA symbols are the last K SC-FDMA symbols in the current uplink subframe. Or

If the K SC-FDMA symbols are the first K SC-FDMA symbols in the current uplink subframe, the SRS is the last SC-FDMA symbol transmission in the current uplink subframe; if the K SC-FDMA symbols are the current uplink subframes The last K SC-FDMA symbols in the frame, then the first SC-FDMA symbol transmission of the SRS in the current uplink subframe.

Preferably, if the K SC-FDMA symbols are the first K SC-FDMA symbols in the current uplink subframe, the user equipment 10 determines that only the uplink carrier except the uplink carrier with the smallest uplink TA is in one uplink subframe. Reserving K SC-FDMA symbols, correspondingly, the network side device 20 determines to reserve K SC-FDMA symbols in one uplink subframe only for uplink carriers other than the uplink carrier with the smallest uplink TA; or the user equipment 10 Determining that the uplink carrier with the smallest uplink TA does not need to reserve SC-FDMA symbols in one uplink subframe, and correspondingly, the network side device 20 determines that the uplink carrier with the smallest uplink TA does not need to be reserved in one uplink subframe. SC-FDMA symbol.

Preferably, if the K SC-FDMA symbols are the first K SC-FDMA symbols in the current uplink subframe, for one uplink carrier, if the uplink TA is smaller than the other uplink carriers of the uplink carrier, the previous one of the current uplink subframes The uplink information is not transmitted on the last K SC-FDMA symbols in the adjacent uplink subframe, and the user equipment 10 determines that the first K SC-FDMA symbols are not reserved for the uplink carrier in the current uplink subframe; correspondingly, the network side The device 20 determines that the first K SC-FDMA symbols are not reserved for the uplink carrier in the current uplink subframe.

Preferably, if the K SC-FDMA symbols are the last K SC-FDMA symbols in the current uplink subframe, the user equipment 10 determines that only the uplink carrier except the uplink carrier with the largest uplink TA is in one uplink subframe. Reserving K SC-FDMA symbols, correspondingly, the network side device 20 determines to reserve K SC-FDMA symbols in one uplink subframe only for uplink carriers other than the uplink carrier having the largest uplink TA; or the user equipment 10 Determining that the uplink carrier with the largest uplink TA does not need to reserve SC-FDMA symbols in one uplink subframe; correspondingly, the network side device 20 determines that the uplink carrier with the largest uplink TA does not need to reserve SC-FDMA symbols in one uplink subframe.

Preferably, if the K SC-FDMA symbols are the last K SC-FDMA symbols in the current uplink subframe, for one uplink carrier, if the uplink TA is greater than the other uplink carriers of the uplink carrier, the latter one of the current uplink subframes. The uplink information is not transmitted on the first K SC-FDMA symbols in the adjacent uplink subframe, and the user equipment 10 determines that the K SC-FDMA symbols are not reserved for the uplink carrier in the current uplink subframe; correspondingly, the network side The device 20 determines that the K SC-FDMA symbols are not reserved for the uplink carrier in the current uplink subframe.

In practice, 0 ≤ Κ < 14 for conventional CP and 0 ≤ K ≤ 12 for extended CP. When determining the threshold, Κ is generally the difference between the uplink transmission timing advances of different TA groups (if there are more than three TA groups, two or two differences are needed. For one carrier, if there are 2 differences, the maximum value is determined. K ), calculated in units of integer SC-FDMA symbols, up rounding of less than one SC-FDMA symbol; may also be selected as needed. Preferably, K = 1 or 2.

Preferably, for PUCCH transmission, the user equipment 10 performs time-domain orthogonal spreading by using SC-FDMA symbols for transmitting uplink information in addition to the reserved SC-FDMA symbols in one uplink subframe. The transmission format transmits uplink information. Correspondingly, the network side device 20 performs time domain positive based on other SC-FDMA symbols for transmitting uplink information except for the reserved K SC-FDMA symbols in one uplink subframe. The transport format of the interleaved spread spectrum receives the uplink information; or, for PUSCH transmission, the user equipment 10 uses other SCs for transmitting uplink information except for the reserved K SC-FDMA symbols in one uplink subframe. The FDMA symbol performs rate matching to transmit uplink information; correspondingly, the network side device 20 uses the SC-FDMA symbol for transmitting uplink information except for the reserved K SC-FDMA symbols in one uplink subframe. Rate matching receives uplink information.

Preferably, if Κ=1, and the SC-FDMA symbols are the last SC-FDMA symbol in the current uplink subframe, for PUCCH transmission, the user equipment 10 transmits the uplink information in the PUCCH using the shortened PUCCH format (for example, shortened) PUCCH format l/la/lb/3, of course, if the shortened format is also defined for format 2/2a/2b, the newly defined shortened PUCCH format 2/2a/2b is not excluded; correspondingly, the network side device 20 is at PUCCH. The uplink information is received by using the shortened PUCCH format; or, for the PUSCH transmission, the user equipment 10 performs rate matching transmission uplink information on the PUSCH based on the last SC-FDMA symbol reserved for transmission (ie, reuses Rel-8/9/10) The transmission mode of the PUSCH transmitted in the system SRS subframe, the last SC-FDMA symbol reservation on the PUSCH is used for transmitting the SRS, and the remaining SC-FDMA symbols (except the pilot symbols) can be used for transmitting uplink data and/or uplink control. Correspondingly, the network side device 20 reserves the SRS based on the last SC-FDMA symbol reservation on the PUSCH. Receives uplink information.

Preferably, if there is a PRACH on an uplink carrier in the previous uplink subframe of the current uplink subframe, the user equipment 10 determines that no uplink information is transmitted in the current uplink subframe on the uplink carrier except the uplink carrier where the PRACH is located. Correspondingly, the network side device 20 determines that no uplink information is transmitted in the current uplink subframe on the uplink carrier except the uplink carrier where the PRACH is located; or the user equipment 10 only has the last uplink carrier except the uplink carrier where the PRACH is located. An SC-FDMA (ie, the last SC-FDMA symbol capable of transmitting upstream information, The SRS is transmitted in the same symbol. Correspondingly, the network side device 20 receives the SRS only in the last SC-FDMA symbol of the uplink carrier except the uplink carrier where the PRACH is located.

Preferably, if all or part of the SC-FDMA symbols in the current uplink subframe overlap with the PRACH continuously transmitted in the at least one uplink subframe (ie, part or all of the uplink channel/signal in the current uplink subframe) The FDMA symbol overlaps with a persistently transmitted PRACH. The PRACH does not necessarily start transmission in the current uplink subframe, and may start transmission in the previous one or more uplink subframes of the current uplink subframe, and continues for multiple uplink subframes. You can use one of the following processing methods:

Mode A: The user equipment 10 determines that no uplink information is transmitted in the current uplink subframe on the uplink carrier except the uplink carrier where the PRACH is located. Correspondingly, the network side device 20 determines that the uplink carrier is other than the uplink carrier where the PRACH is located. No uplink information is received in the current uplink subframe;

Mode B: For an uplink carrier other than the uplink carrier where the PRACH is located, if K SC-FDMA symbols are reserved on the uplink carrier in the current uplink subframe (including K=0, there is no reservation at this time) The uplink channel/signal after the SC-FDMA symbol is still overlapped with the PRACH on all or part of the SC-FDMA symbol, and the user equipment 10 determines that the uplink carrier does not transmit any uplink information in the current uplink subframe, and correspondingly, the network side device 20 determining that the uplink carrier does not receive any uplink information in the current uplink subframe;

Mode C: The user equipment 10 performs power control on the uplink channel/signal in the current uplink subframe based on the transmit power of the PRACH, and transmits the uplink channel/signal in the current uplink subframe according to the power controllized transmit power, correspondingly, the network The side device 20 determines to receive uplink information on all uplink carriers in the current uplink subframe.

It should be noted that the uplink channel/signal that may overlap with the PRACH includes at least one or more of PUCCH, PUSCH, and SRS.

It should be noted that the foregoing manners A and B correspond to the case where the PRACH and other uplink channels/signals are not simultaneously transmitted. For the mode B, if there is a PRACH on an uplink carrier in the previous uplink subframe of the current uplink subframe ( In addition to format 4, for the uplink carrier other than the uplink carrier where the PRACH is located, if K SC-FDMA symbols are reserved on the uplink carrier in the current uplink subframe (including K=0, at this time) The uplink channel/signal without any reserved SC-FDMA symbols still overlaps with the PRACH on all or part of the SC-FDMA symbols, and the network side device 20 can be restricted by scheduling, or pre-configured or agreed to K for these carriers. The value of the way to avoid overlapping transmission of uplink channel/signal and PRACH on these carriers. For an uplink carrier other than the uplink carrier where the PRACH is located, if there are K SC-FDMA symbols reserved for the uplink channel/signal (including K=0, there is no reserved SC-FDMA at this time). After the symbol) does not overlap with the PRACH, the user equipment 10 can normally transmit the uplink channel/signal in the current uplink subframe, for example, transmit the SRS in the last SC-FDMA symbol (ie, configure the current uplink subframe as an SRS subframe). Correspondingly, the network side device 10 can receive the uplink channel/signal on the corresponding carrier.

It should be noted that the above manner C corresponds to the case where the PRACH and other uplink channels/signals are simultaneously transmitted. The user equipment 10 performs power control on the uplink channel/signal in the current uplink subframe based on the transmit power of the PRACH, that is, if the total transmit power of the UE in the current uplink subframe exceeds the preset maximum transmit power, in the current uplink subframe. When the uplink channel/signal performs power scaling, the transmit power of the PRACH is required, regardless of whether the PRACH is transmitted in the current uplink subframe (that is, the PRACH is also transmitted in the previous one or more uplink subframes, but due to If the value of the uplink channel/signal on the uplink carrier other than the uplink carrier of the PRACH is overlapped, If the channel priority of the PRACH is the highest, when the power channel is upgraded for the uplink channel/signal in the current uplink subframe, the remaining available transmit power after the PRACH transmit power is subtracted based on the preset maximum transmit power (linear region) : P _emax -P _P R _ACH ), that is, in order of channel/signal priority from low to high, first to low priority The upstream channel/signal is scaled down until the total transmit power of the UE does not exceed the remaining available transmit power.

Preferably, if there is an SRS transmission in the last SC-FDMA symbol in the current uplink subframe or the current uplink subframe is an SRS transmission subframe and the SRS is in the last SC-FDMA symbol in one uplink subframe (ie, the uplink can be transmitted) The last SC-FDMA symbol of the information, the same as the transmission, the user equipment 10 determines that the uplink carrier other than the uplink carrier having the largest uplink TA is further reserved after the uplink channel in the current uplink subframe, and the two SC-FDMA symbols are not The uplink information is further transmitted (that is, further reserved on the basis of the reserved K SC-FDMA symbols); correspondingly, the network side device 20 determines the uplink of the uplink carrier in the current uplink subframe except the uplink carrier having the largest uplink TA. After the channel is further reserved, the two SC-FDMA symbols do not transmit uplink information (ie, further reserved based on the reserved K SC-FDMA symbols). The uplink channel includes at least one of PUCCH, PUSCH, and PRACH.

It should be noted that if there is an SRS transmission in the last SC-FDMA symbol in the current uplink subframe, the uplink carrier other than the uplink carrier with the largest uplink transmission timing advance in the current uplink subframe may be further configured or agreed. The last 2 SC-FDMA symbols of the uplink channel are vacant and do not transmit any uplink channel bearer information (such as UCI and uplink data). The SRS can be transmitted in the last SC-FDMA symbol to avoid SRS and other carriers with different TAs. Upstream channel collision on.

Preferably, if the first SC-FDMA symbol in the current uplink subframe (ie, the first one capable of transmitting uplink information)

SC-FDMA symbol, the same as the first SC-FDMA symbol transmission in which the SRS transmission is present or the current uplink subframe is an SRS transmission subframe and the SRS is in one uplink subframe, and the user equipment 10 determines the uplink except the minimum uplink TA. The uplink carrier other than the carrier further reserves the first two SC-FDMA symbols in the uplink channel in the current uplink subframe, and does not transmit the uplink information (that is, further reserved on the basis of the reserved K SC-FDMA symbols); correspondingly, The network side device 20 determines that the uplink carrier other than the uplink carrier with the smallest uplink TA further reserves the uplink information in the first two SC-FDMA symbols in the uplink channel in the current uplink subframe (that is, reserves K SC-FDMA). Further reservation based on the symbol). The uplink channel includes at least one of PUCCH, PUSCH, and PRACH.

It should be noted that if there is an SRS transmission in the first SC-FDMA symbol in the current uplink subframe, Further configuring or arranging that the first two SC-FDMA symbols of the uplink channel on the uplink carrier except the uplink carrier having the largest uplink transmission timing advance in the current uplink subframe do not transmit any uplink channel bearer information (such as UCI and Uplink data), SRS can be transmitted in the first SC-FDMA symbol to avoid collision of SRS with uplink channels on other carriers with different TAs.

Preferably, the user equipment 10 transmits only the SRSs of the uplink carriers having the same uplink TA in the same uplink subframe. Correspondingly, the network side device 20 only receives the uplink carriers with the same uplink TA in the same uplink subframe. SRS. That is, the network side device 20 may be configured in one uplink subframe, and only the carrier with the same TA transmits the SRS, and the SRSs of the carriers with different TAs are transmitted in different uplink subframes to avoid multiple carriers caused by multiple TAs. The upper SRS is not aligned in one uplink subframe, resulting in more complicated power control.

The user equipment 10 maps the uplink information to be transmitted to the uplink carrier on the SC-FDMA symbol except the K SC-FDMA symbols on the uplink channel in the current uplink subframe, and further includes the user equipment 10 The actual transmit power of each upstream channel/signal is determined as follows, and each upstream channel/signal is transmitted according to the power:

If there is no SRS transmission in the current uplink subframe:

The user equipment determines the sum of the target transmit power of the uplink channel transmitted in the current uplink subframe (ie, the transmit power of the uplink channel on each carrier calculated based on the correlation power control parameter of each carrier and the uplink channel on the carrier) Whether the preset maximum transmission power is exceeded;

When the judgment is exceeded, the target transmission power of the uplink channel having the same uplink channel/signal priority transmitted in the current uplink subframe is gradually reduced in proportion according to the order of the uplink channel/signal priority from low to high (ie, First, the transmit power of the uplink channel with the lowest priority is reduced. When the power is reduced to 0, the total transmit power of the UE exceeds the preset maximum transmit power, and the transmit power of the lower priority uplink channel is further reduced, and so on. After the power reduction is performed, the sum of the transmit powers of the uplink channels transmitted in the current uplink subframe does not exceed the preset maximum transmit power, and the transmit power after the power reduction is used as the actual transmit power of the uplink channel; Performing a high-priority uplink channel with reduced power, and using its target transmit power as its actual transmit power;

When not exceeded, the target transmit power of each upstream channel is taken as its actual transmit power.

If there is an SRS transmission in the current uplink subframe, and the SRS of the uplink carrier with different uplink transmission timing advances is transmitted in different uplink subframes (that is, only one uplink subframe having the same uplink transmission timing advance exists in one uplink subframe) SRS transmission, there may be one or more):

The user equipment 10 determines whether the sum of the target transmit powers of the uplink channels transmitted in the current uplink subframe exceeds a preset maximum transmit power;

When the judgment is exceeded, the target transmission power of the uplink channel having the same uplink channel/signal priority transmitted in the current uplink subframe is gradually reduced in proportion according to the order of the uplink channel/signal priority from low to high, to After the power reduction is satisfied, the sum of the transmit powers of the uplink channels transmitted in the current uplink subframe does not exceed the preset maximum transmit power. Rate, and the power of the reduced power is taken as the actual transmit power of the uplink channel; for the high priority uplink channel without power reduction, the target transmit power is taken as its actual transmit power;

When not exceeding, the target transmit power of each uplink channel is taken as its actual transmit power;

Further, the user equipment 10 determines the target transmit power of the SRS in the current uplink subframe and the actual transmit of the uplink channel on the uplink carrier except the uplink carrier where the SRS is located, that is, the uplink channel that overlaps with the SRS in the current uplink subframe. Whether the sum of the power (that is, the transmit power determined after the power control process for the uplink channel described above) exceeds a preset maximum transmit power;

When the judgment is exceeded, the target transmit power of the SRS transmitted in the current uplink subframe is subjected to equal power reduction (where the periodic SRS and the aperiodic SRS can be further distinguished, and the priority of the aperiodic SRS is higher than the periodic SRS, that is, the priority guarantee is non- The transmit power of the periodic SRS is not reduced. After the power is reduced, the sum of the transmit powers of the SRSs transmitted in the current uplink subframe does not exceed the preset maximum transmit power minus the uplink carrier except the uplink carrier where the SRS is located. The actual transmit power of the uplink channel, and the transmit power after the power reduction is taken as the actual transmit power of the SRS; when not exceeded, the target transmit power of each SRS is taken as its actual transmit power;

Preferably, the uplink channel/signal priority may be at least one of the following definitions:

PUCCH>PUSCH carrying UCI>PUSCH>SRS not carrying UCI; or

PUCCH>PUSCH carrying UCI>PUSCH=SRS not carrying UCI;

If there is a PRACH, the uplink channel/signal priority may be at least one of the following definitions:

PRACH>PUCCH>PUSCH carrying UCI>PUSCH>SRS not carrying UCI; or

PRACH>PUCCH>PUSCH carrying UCI>PUSCH=SRS not carrying UCI; or

PUCCH>PRACH>PUSCH carrying UCI>PUSCH>SRS not carrying UCI; or

PUCCH>PRACH> PUSCH carrying UCI> PUSCH=SRS not carrying UCI.

The SRS includes an aperiodic SRS (Aperiodic-SRS) and a periodic SRS (Responsive SRS), and the aperiodic SRS priority may be higher than or equal to the periodic SRS; the aperiodic SRS priority may also be higher than or equal to the PUSCH not carrying the UCI. ;

Preferably, the preset maximum transmit power may be the maximum transmit power allowed by the user equipment 10, and/or the maximum transmit power allowed in each frequency band; if the uplink channel/signal in the current uplink subframe overlaps with the PRACH, If the priority of the PRACH is high (the priority of the transmit power is not required to be reduced), then all uplink channels/signals in the current uplink subframe or uplink channels/signals overlapping with the PRACH in the current uplink subframe are present according to the foregoing. The SRS and the method in the absence of SRS transmission perform power control, and the preset maximum transmit power used may also be the maximum transmit power allowed by the user equipment 10 or the maximum transmit power allowed by the frequency band minus the transmit power of the PRACH.

When there is an SRS transmission, when SRSs of uplink carriers with different uplink transmission timing advances are transmitted in the same uplink subframe, different SRS transmission times are not aligned, and collisions with uplink channels/signals on other carriers are different, and need to be Different simultaneous transmission conditions (ie different collision symbols) for power reduction, for the same SRS participation For multiple power reductions, the minimum transmit power in the multiple power reduction calculation is taken as the actual transmit power of the SRS;

In the power reduction method described above, other power reduction methods are not excluded, such as reducing the power for all uplink channels/signals (i.e., not classifying the channel priority), or performing power reduction according to the power reduction ratio coefficient corresponding to the frequency band.

Since the Rel-10 power control method is reused in the current uplink subframe as much as possible to determine the transmit power of each uplink channel/signal, the standardization complexity is ensured, and the user equipment is guaranteed to work normally.

Preferably, the SRS is in the uplink carrier of the last SC-FDMA symbol transmission, and the K vacant SC-FDMA symbols are the first K symbols in the current uplink subframe, and at the same time, in order to avoid introducing new due to SC-FDMA symbol vacancy For the PUCCH format definition, the carrier with the smallest TA should be selected as the uplink primary component carrier. Alternatively, the SRS is in the uplink carrier of the first SC-FDMA symbol transmission, and the K vacant SC-FDMA symbols are the last K symbols in the current uplink subframe, and at the same time, in order to avoid preserving excessive SC-FDMA symbols. Affecting PUCCH transmission, and avoiding introducing a new PUCCH format definition in a non-SRS subframe, the carrier with the largest TA should be selected as the uplink primary component carrier.

The foregoing uplink channel/signal includes but is not limited to the uplink channel PUCCH, PUSCH, PRACH, and the uplink signal SRS, etc.; wherein the meaning of the above “uplink channel/signal” means: only the uplink channel exists, or only the uplink signal exists, or the uplink channel and The upstream signals are present at the same time.

The uplink information includes uplink control information and uplink data; the uplink control information includes ACK/NACK, periodic/aperiodic CSI, and SR; and the CSI includes CQI information, PMI information, RI information, and PTI information.

Preferably, the above method is applicable to both intra-band and inter-band CA; and is applicable to both Frequency Division Duplex (FDD) and Time Division Duplex (TDD) systems.

The network side device in the embodiment of the present invention may be a station (such as a macro base station, a home base station, etc.), a relay node (RN) device, or other network side devices.

As shown in FIG. 3, the user equipment in the system for transmitting uplink information in the embodiment of the present invention includes: a first determining module 300 and a transmitting module 310.

The first determining module 300 is configured to: when there are multiple uplinks, determine that the uplink carrier reserves, in the current uplink subframe, that the SC-FDMA symbols do not transmit uplink information, where K is a non-negative integer;

The transmitting module 310 is configured to map the uplink information to be transmitted to the uplink carrier, and transmit the SC-FDMA symbol for transmitting uplink information except the K SC-FDMA symbols in the current uplink subframe.

Preferably, the first determining module 300 determines K SC-FDMA symbols according to the configuration of the high layer signaling or the PDCCH signaling; or determines K SC-FDMA symbols according to a pre-arrangement with the network side device; or according to the PDCCH letter The specific bit field in the command determines whether there is a reserved SC-FDMA symbol in the current uplink subframe, and when it is determined to exist, determines that the K-SC-FDMA symbols pre-configured by the high-layer signaling or the PDCCH signaling are K SC-FDMA symbols. a symbol, when the judgment does not exist, determining that there is no reserved SC-FDMA symbol in the current uplink subframe, where the PDCCH is corresponding to The PDCCH in the downlink subframe in which the ACK/NACK feedback is performed in the current uplink subframe, and/or the PDCCH corresponding to the PUSCH in the current uplink subframe.

Preferably, the higher layer signaling is RRC signaling or MAC signaling.

Preferably, the corresponding uplinks of the different uplink carriers are the same or different in the same uplink subframe; the K corresponding to the different uplink carriers in the different uplink subframes are the same or different.

Preferably, the K SC-FDMA symbols determined by the first determining module 300 are the first K SC-FDMA symbols in the current uplink subframe; or the K SC-FDMA symbols determined by the first determining module 300 are the current uplink subframe. The last K SC-FDMA symbols in the frame; or the K SC-FDMA symbols determined by the first determining module 300 are the first K1 SC-FDMA symbols and the last K2 SC-FDMA symbols in the current uplink subframe, where K1 +K2=K.

Preferably, the first determining module 300 determines the last SC-FDMA symbol transmission of the SRS in the current uplink subframe, and the K SC-FDMA symbols are the first K SC-FDMA symbols in the current uplink subframe; or

The first determining module 300 determines the first SC-FDMA symbol transmission of the SRS in the current uplink subframe, and the K SC-FDMA symbols are the last K SC-FDMA symbols in the current uplink subframe.

Preferably, if the K SC-FDMA symbols are the first K SC-FDMA symbols in the current uplink subframe, the first determining module 300 determines that only the uplink carrier except the uplink carrier with the smallest uplink TA is in one uplink. K SC-FDMA symbols are reserved in the frame, or it is determined that the uplink carrier with the smallest uplink TA does not need to reserve SC-FDMA symbols in one uplink subframe.

Preferably, if the K SC-FDMA symbols are the first K SC-FDMA symbols in the current uplink subframe, for one uplink carrier, if the uplink TA is smaller than the uplink carrier, the other uplink carriers are in the previous phase of the current uplink subframe. The uplink information is not transmitted on the last K SC-FDMA symbols in the adjacent uplink subframe, and the first determining module 300 determines that the first K SC-FDMA symbols are not reserved for the uplink carrier in the current uplink subframe.

Preferably, if the K SC-FDMA symbols are the last K SC-FDMA symbols in the current uplink subframe, the first determining module 300 determines that only the uplink carrier except the uplink carrier with the largest uplink TA is in one uplink. The K SC-FDMA symbols are reserved in the frame, or it is determined that the uplink carrier with the largest uplink TA does not need to reserve SC-FDMA symbols in one uplink subframe.

Preferably, if the K SC-FDMA symbols are the last K SC-FDMA symbols in the current uplink subframe, for one uplink carrier, if the uplink TA is greater than the uplink carrier, the other uplink carriers are in the next phase of the current uplink subframe. The uplink information is not transmitted on the first K SC-FDMA symbols in the adjacent uplink subframe, and the first determining module 300 determines that the K SC-FDMA symbols are not reserved for the uplink carrier in the current uplink subframe.

Preferably, the transmission module 310 performs a time-domain orthogonal spreading transmission format for the PUCCH transmission by using SC-FDMA symbols for transmitting uplink information in addition to K SC-FDMA symbols in one uplink subframe. Transmitting uplink information; or, for PUSCH transmission, performing rate matching transmission uplink information based on SC-FDMA symbols for transmitting uplink information except for K SC-FDMA symbols in one uplink subframe. Preferably, if K=l and the SC-FDMA symbols are the last SC-FDMA symbol in the current uplink subframe, the transmission module 310 is for! >1;. . 11 transmission, using shortened PUCCH format to transmit uplink information; or, for PUSCH transmission, based on the last SC-FDMA symbol reservation for SRS transmission for rate matching transmission uplink information.

Preferably, if all or part of the SC-FDMA symbols in the current uplink subframe overlap with the PRACH continuously transmitted in the at least one uplink subframe, the first determining module 300 determines that the uplink carrier is other than the uplink carrier where the PRACH is located. No uplink information is transmitted in the current uplink subframe; or for an uplink carrier other than the uplink carrier where the PRACH is located, if the uplink channel is reserved for K SC-FDMA symbols on the uplink carrier in the current uplink subframe/ The signal still overlaps with the PRACH on all or part of the SC-FDMA symbol, determining that the uplink carrier does not transmit any uplink information in the current uplink subframe; or powering the uplink channel/signal in the current uplink subframe based on the transmit power of the PRACH. Controlling, and transmitting the uplink channel/signal in the current uplink subframe according to the power consumption after the power control;

The uplink channel/signal includes at least one or more of PUCCH, PUSCH, and SRS.

Preferably, if the current uplink subframe has an SRS transmission in the last SC-FDMA symbol or the current uplink subframe is an SRS transmission subframe and the SRS is transmitted in the last SC-FDMA symbol in one uplink subframe, the first determination is performed. The module 300 determines that the uplink carrier other than the uplink carrier having the largest uplink TA does not transmit uplink information after the uplink channel in the current uplink subframe is further reserved.

Preferably, if there is an SRS transmission in the first SC-FDMA symbol in the current uplink subframe or the current uplink subframe is an SRS transmission subframe and the first SC-FDMA symbol transmission of the SRS in one uplink subframe, A determining module 300 determines that the uplink carrier other than the uplink carrier with the smallest uplink TA further reserves the uplink information in the first two SC-FDMA symbols in the uplink channel in the current uplink subframe;

The uplink channel includes at least one of PUCCH, PUSCH, and PRACH.

Preferably, the transmission module 310 transmits only the uplink carrier with the same uplink TA in the same uplink subframe.

SRS.

As shown in FIG. 4, the network side device in the system for transmitting uplink information in the embodiment of the present invention includes: a second determining module

400 and receiving module 410.

The second determining module 400 is configured to determine that the uplink carrier reserves K SC-FDMA symbols in the current uplink subframe, and does not transmit uplink information, where K is a non-negative integer;

The receiving module 410 is configured to receive, by using an uplink carrier, uplink information sent by the user equipment that has multiple uplink TAs in other SC-FDMA symbols except the SC-FDMA symbol that does not transmit uplink information in the current uplink subframe.

Preferably, the second determining module 400 configures K SC-FDMA symbols for the user equipment by using high layer signaling or PDCCH signaling; or notifying K SC-FDMA symbols by means of a pre-agreed with the user equipment; or by using a high-level letter Let the PDCCH signaling notify the user equipment in advance of the K SC-FDMA symbols, and pass the PDCCH. The specific bit field in the signaling configures whether the user equipment reserves K SC-FDMA symbols in the current uplink subframe, where the PDCCH is a PDCCH in a downlink subframe corresponding to ACK/NACK feedback in the current uplink subframe, and / or PDCCH corresponding to the PUSCH in the current uplink subframe.

Preferably, the higher layer signaling is RRC signaling or MAC signaling.

Preferably, the K SC-FDMA symbols determined by the second determining module 400 are the first K SC-FDMA symbols in the current uplink subframe; or the K SC-FDMA symbols determined by the second determining module 400 are the current uplink subframe. The last K SC-FDMA symbols in the frame; or the K SC-FDMA symbols determined by the second determining module 400 are the first K1 SC-FDMA symbols in the current uplink subframe and the last K2 SC-FDMA symbols, where K1 +K2=K.

Preferably, the second determining module 400 determines the last SC-FDMA symbol transmission of the SRS in the current uplink subframe, and the K SC-FDMA symbols are the first K SC-FDMA symbols in the current uplink subframe; or The second determining module 400 determines the first SC-FDMA symbol transmission of the SRS in the current uplink subframe, and the K SC-FDMA symbols are the last K SC-FDMA symbols in the current uplink subframe.

Preferably, if the K SC-FDMA symbols are the first K SC-FDMA symbols in the current uplink subframe, the second determining module 400 determines that only the uplink carrier except the uplink carrier with the smallest uplink TA is in one uplink. K SC-FDMA symbols are reserved in the frame, or it is determined that the uplink carrier with the smallest uplink TA does not need to reserve SC-FDMA symbols in one uplink subframe.

Preferably, if the K SC-FDMA symbols are the first K SC-FDMA symbols in the current uplink subframe, for one uplink carrier, if the uplink TA is smaller than the uplink carrier, the other uplink carriers are in the previous phase of the current uplink subframe. The uplink information is not transmitted on the last K SC-FDMA symbols in the adjacent uplink subframe, and the second determining module 400 determines that the first K SC-FDMA symbols are not reserved for the uplink carrier in the current uplink subframe.

Preferably, if the K SC-FDMA symbols are the last K SC-FDMA symbols in the current uplink subframe, the second determining module 400 determines that only the uplink carrier other than the uplink carrier having the largest uplink TA is in one uplink. The K SC-FDMA symbols are reserved in the frame, or it is determined that the uplink carrier with the largest uplink TA does not need to reserve SC-FDMA symbols in one uplink subframe.

Preferably, if the K SC-FDMA symbols are the last K SC-FDMA symbols in the current uplink subframe, for one uplink carrier, if the uplink TA is greater than the uplink carrier, the other uplink carriers are in the next phase of the current uplink subframe. The uplink information is not transmitted on the first K SC-FDMA symbols in the adjacent uplink subframe, and the second determining module 400 determines that the K SC-FDMA symbols are not reserved for the uplink carrier in the current uplink subframe.

Preferably, the receiving module 410 performs time-domain orthogonal despreading transmission on the PUCCH transmission by using SC-FDMA symbols for transmitting uplink information in addition to K SC-FDMA symbols in one uplink subframe. The format receives uplink information; or, for PUSCH transmission, is based on the division of K SC-FDMA symbols in one uplink subframe. Other SC-FDMA symbols for transmitting uplink information perform de-rate matching to receive uplink information. Preferably, if Κ=1, and the one SC-FDMA symbol is the last SC-FDMA symbol in the current uplink subframe, the receiving module 410 receives the uplink information by using the shortened PUCCH format for the PUCCH transmission; or, for the PUSCH Transmission, based on the last SC-FDMA symbol reservation for transmitting SRS for de-rate matching reception uplink information.

Preferably, if the uplink channel/signal in the current uplink subframe overlaps with all or part of the SC-FDMA symbol and the PRACH continuously transmitted in the at least one uplink subframe, the second determining module 400 determines the uplink carrier except the PRACH. The uplink carrier does not transmit any uplink information in the current uplink subframe; or the uplink carrier other than the uplink carrier where the PRACH is located, if K SC-FDMA symbols are reserved on the uplink carrier in the current uplink subframe The uplink channel/signal still overlaps with the PRACH on all or part of the SC-FDMA symbol, and determines that the uplink carrier does not receive any uplink data in the current uplink subframe; or determines that each uplink carrier in the current uplink subframe receives the uplink. Information

Preferably, if there is an SRS transmission in the last SC-FDMA symbol in the current uplink subframe or the current uplink subframe is an SRS transmission subframe and the last SC-FDMA symbol transmission of the SRS in one uplink subframe, the second determination The module 400 determines that the uplink carrier other than the uplink carrier having the largest uplink TA does not transmit uplink information after the uplink channel in the current uplink subframe is further reserved; or, if the current uplink subframe is in the first The SC-FDMA symbol has an SRS transmission or the current uplink subframe is an SRS transmission subframe and the SRS is transmitted in the first SC-FDMA symbol in one uplink subframe, and the second determining module 400 determines the uplink carrier except the smallest uplink TA. The uplink carrier other than the uplink channel in the current uplink subframe further reserves the first two SC-FDMA symbols without transmitting uplink information;

The uplink channel includes at least one of PUCCH, PUSCH, and PRACH.

Preferably, the receiving module 410 receives only the SRS of the uplink carrier with the same uplink TA in the same uplink subframe.

Based on the same inventive concept, the method for transmitting uplink information and receiving uplink information is also provided in the embodiment of the present invention. The methods for solving the problem are similar to the user equipment and the network side device in the system for transmitting uplink information, respectively. The implementation can be seen in the implementation of the system, and the repetition will not be repeated.

As shown in FIG. 5, the method for transmitting uplink information in the embodiment of the present invention includes the following steps:

Step 501: A user equipment with multiple uplink TAs, determining that the uplink carrier reserves K single-carrier frequency division multiple access in the current uplink subframe. The SC-FDMA symbol does not transmit uplink information, where K is a non-negative integer;

Step 502: The user equipment maps the uplink information to be transmitted to the uplink carrier, and performs transmission on the SC-FDMA symbol for transmitting uplink information except the K SC-FDMA symbols in the current uplink subframe.

It should be noted that the foregoing SC-FDMA for transmitting uplink information except K SC-FDMA symbols. The symbol is: in the SC-FDMA symbol included in the uplink channel in an uplink subframe, except for the reserved K SC-FDMA symbols, the SC-FDMA symbol used to transmit the pilot RS, and when there is SRS transmission or current The SC-FDMA symbol other than the SC-FDMA symbol reserved for SRS transmission when the subframe is a system SRS subframe.

Preferably, in step 501, the user equipment directly determines K SC-FDMA symbols according to the configuration of the high layer signaling or the PDCCH signaling; or the user equipment determines K SC-FDMA symbols according to a pre-arrangement with the network side device; or The user equipment determines whether there is a reserved SC-FDMA symbol in the current uplink subframe according to the specific bit field in the PDCCH signaling, and further determines the K SC-FDMA symbols pre-configured by the high layer signaling or the PDCCH signaling when the presence is determined. For the reserved K SC-FDMA symbols, when it is determined that there is no existence, the SC-FDMA symbol with no reservation in the current uplink subframe is determined, where the PDCCH is a positive acknowledgement ACK/negative acknowledgement NACK in the current uplink subframe. The PDCCH in the downlink subframe that is fed back, and/or the PDCCH corresponding to the physical uplink shared channel PUSCH in the current uplink subframe.

Preferably, the high layer signaling is radio resource control RRC signaling or medium access control MAC signaling.

Preferably, the high layer signaling or the PDCCH signaling configuration, or the user equipment and the network side device agree, each TA group corresponds to one reserved SC-FDMA symbol set, and each carrier belonging to the TA group is in each uplink subframe. The reserved SC-FDMA symbols in the set are some or all of the SC-FDMA symbols in the set, which are selected by signaling or by an agreed manner.

Preferably, different uplink carriers are the same or different in the corresponding uplink subframes;

The same uplink carrier is the same or different in K corresponding to different uplink subframes.

Preferably, the K SC-FDMA symbols are the first K SC-FDMA symbols in the current uplink subframe; or the K SC-FDMA symbols are the last K SC-FDMA symbols in the current uplink subframe; or K The SC-FDMA symbol is the first K1 SC-FDMA symbols and the last K2 SC-FDMA symbols in the current uplink subframe, where K1+K2=K.

Preferably, the SRS is transmitted in the last SC-FDMA symbol in the current uplink subframe, and the K SC-FDMA symbols are the first K SC-FDMA symbols in the current uplink subframe; or the SRS is in the current uplink subframe. The first SC-FDMA symbol is transmitted, and the K SC-FDMA symbols are the last K SC-FDMA symbols in the current uplink subframe.

Preferably, if the K SC-FDMA symbols are the first K SC-FDMA symbols in the current uplink subframe, the steps

In 501, the user equipment determines K SC-FDMA symbols, and further includes:

The user equipment determines to reserve K SC-FDMA symbols in only one uplink subframe for the uplink carrier except the uplink carrier with the smallest uplink TA, or the user equipment determines that the uplink carrier with the smallest uplink TA is in one uplink subframe. There is no need to reserve SC-FDMA symbols.

In 501, the user equipment determines K SC-FDMA symbols, and further includes:

For an uplink carrier, if the uplink carrier is smaller than the other uplink carriers of the uplink carrier, the uplink information is not transmitted on the last K SC-FDMA symbols in the previous adjacent uplink subframe of the current uplink subframe, and the user equipment determines that the uplink information is currently available. The first K SC-FDMA symbols are not reserved for the uplink carrier in the uplink subframe.

Preferably, if the SC-FDMA symbols are the last K SC-FDMA symbols in the current uplink subframe, in step 501, the user equipment determines K SC-FDMA symbols, and further includes:

The user equipment determines that only K SC-FDMA symbols are reserved in one uplink subframe for the uplink carrier except the uplink carrier with the largest uplink TA, or the user equipment determines that the uplink carrier with the largest uplink TA is in one uplink subframe. There is no need to reserve SC-FDMA symbols.

Preferably, if the K SC-FDMA symbols are the last K SC-FDMA symbols in the current uplink subframe, in step 501, the user equipment determines K SC-FDMA symbols, and further includes:

For an uplink carrier, if the uplink carrier is larger than the other uplink carriers of the uplink carrier, the uplink information is not transmitted on the first K SC-FDMA symbols in the next adjacent uplink subframe of the current uplink subframe, and the user equipment determines the current uplink subframe. The K SC-FDMA symbols are not reserved for the uplink carrier in the frame.

Preferably, in step 502, the user equipment maps the uplink information to be transmitted to the uplink carrier, and transmits the uplink information on the SC-FDMA symbol for transmitting uplink information except the K SC-FDMA symbols in the current uplink subframe. The method includes: for PUCCH transmission, the user equipment uses the SC-FDMA symbol for transmitting uplink information except for the K SC-FDMA symbols in one uplink subframe to perform uplink time-spreading transmission format to transmit uplink information. Or,

For PUSCH transmission, the user equipment performs rate matching transmission uplink information based on other SC-FDMA symbols for transmitting uplink information except for K SC-FDMA symbols in one uplink subframe.

Preferably, in step 502, if K=l, and the SC-FDMA symbols are the last SC-FDMA symbol in the current uplink subframe, the user equipment maps the uplink information to be transmitted to the uplink carrier in the current uplink. The transmission is performed on the SC-FDMA symbol for transmitting uplink information except for the K SC-FDMA symbols in the frame, and further includes: For PUCCH transmission. The user equipment transmits the uplink information by using the shortened PUCCH format; or, for the PUSCH transmission, the user equipment performs rate matching transmission uplink information based on the last SC-FDMA symbol reserved for transmitting the SRS.

Preferably, if all or part of the SC-FDMA symbols in the current uplink subframe overlap with the physical random access channel PRACH continuously transmitted in the at least one uplink subframe, the user equipment determines an uplink other than the uplink carrier where the PRACH is located. No uplink information is transmitted on the carrier in the current uplink subframe; or

For an uplink carrier other than the uplink carrier where the PRACH is located, if the uplink channel/signal after K SC-FDMA symbols are reserved on the uplink carrier in the current uplink subframe, the PR/FDMA symbol remains on all or part of the SC-FDMA symbol. The user equipment determines that the uplink carrier does not transmit any uplink information in the current uplink subframe; or the user equipment performs power control on the uplink channel/signal in the current uplink subframe based on the PRACH transmit power, and transmits according to the power control. Power transmission of the uplink channel/signal in the current uplink subframe;

The uplink channel/signal includes at least one or more of PUCCH, PUSCH, and SRS. Preferably, if there is an SRS transmission in the last SC-FDMA symbol in the current uplink subframe or the current uplink subframe is an SRS transmission subframe and the last SC-FDMA symbol transmission of the SRS in one uplink subframe, the user equipment determines The uplink carrier other than the uplink carrier with the largest uplink TA does not transmit uplink information after the uplink channel in the current uplink subframe is further reserved; or

If the current uplink subframe has an SRS transmission in the first SC-FDMA symbol or the current uplink subframe is an SRS transmission subframe and the SRS is transmitted in the first SC-FDMA symbol in one uplink subframe, the user equipment determines that in addition to having The uplink carrier other than the uplink carrier of the minimum uplink TA further reserves the uplink information of the first two SC-FDMA symbols in the uplink channel in the current uplink subframe;

The uplink channel includes at least one of PUCCH, PUSCH, and PRACH.

Preferably, the user equipment only has SRS transmission of the uplink carrier with the same uplink TA in the same uplink subframe.

As shown in FIG. 6, the method for receiving uplink information in the embodiment of the present invention includes the following steps:

Step 601: The network side device determines that the uplink carrier reserves K SC-FDMA symbols in the current uplink subframe, and does not transmit uplink information, where K is a non-negative integer;

Step 602: The network side device receives, by using the uplink carrier, uplink information sent by the user equipment that has multiple uplink TAs in the current uplink subframe except for the SC-FDMA symbol that does not transmit the uplink information.

Preferably, the network side device configures K SC-FDMA symbols for the user equipment by using high layer signaling or PDCCH signaling; or the network side device notifies K SC-FDMA symbols by means agreed in advance with the user equipment; or the network side The device notifies the K SC-FDMA symbols to the user equipment in advance through the high layer signaling or the PDCCH signaling, and configures whether the user equipment reserves K SC-FDMA symbols in the current uplink subframe by using a specific bit field in the PDCCH signaling. The PDCCH is a PDCCH in a downlink subframe corresponding to positive acknowledgement ACK/negative acknowledgement NACK feedback in the current uplink subframe, and/or a PDCCH corresponding to the PUSCH in the current uplink subframe.

Preferably, the higher layer signaling is RRC signaling or MAC signaling.

Preferably, if the K SC-FDMA symbols are the first K SC-FDMA symbols in the current uplink subframe, in step 601, the network side device determines K SC-FDMA symbols, and further includes: The network side device determines that only K SC-FDMA symbols are reserved in one uplink subframe for the uplink carrier except the uplink carrier with the smallest uplink TA, or the network side device determines that the uplink carrier with the smallest uplink TA is in one uplink subframe. There is no need to reserve SC-FDMA symbols in the frame.

Preferably, if the K SC-FDMA symbols are the first K SC-FDMA symbols in the current uplink subframe, in step 601, the network side device determines K SC-FDMA symbols, and further includes:

For an uplink carrier, if the uplink carrier is smaller than the other uplink carriers of the uplink carrier, the uplink information is not transmitted on the last K SC-FDMA symbols in the previous adjacent uplink subframe of the current uplink subframe, and the network side device determines the current uplink. The first K SC-FDMA symbols are not reserved for the uplink carrier in the subframe.

Preferably, if the K SC-FDMA symbols are the last K SC-FDMA symbols in the current uplink subframe, in step 601, the network side device determines K SC-FDMA symbols, and further includes:

The network side device determines that only K SC-FDMA symbols are reserved in one uplink subframe for the uplink carrier except the uplink carrier with the largest uplink TA, or the network side device determines that the uplink carrier with the largest uplink TA is in one uplink subframe. There is no need to reserve SC-FDMA symbols in the frame.

For an uplink carrier, if the uplink carrier is larger than the other uplink carriers of the uplink carrier, the uplink information is not transmitted on the first K SC-FDMA symbols in the next adjacent uplink subframe of the current uplink subframe, and the network side device determines the current uplink. The K-SC-FDMA symbols are not reserved for the uplink carrier in the subframe.

Preferably, in step 602, the network side device receives, by the uplink carrier, another SC-FDMA symbol other than the SC-FDMA symbol that does not transmit the uplink information in the current uplink subframe, and receives the user equipment transmission and transmission with multiple uplink TAs. Uplink information, including:

For PUCCH transmission, the network side device receives uplink information by using a SC-FDMA symbol for transmitting uplink information in an uplink subframe to perform time domain orthogonal despreading in a transmission format based on other SC-FDMA symbols for transmitting uplink information. Or,

For PUSCH transmission, the network side device performs de-rate matching to receive uplink information based on SC-FDMA symbols for transmitting uplink information except for K SC-FDMA symbols in one uplink subframe.

Preferably, if Κ=1, and the SC-FDMA symbols are the last SC-FDMA symbol in the current uplink subframe, the network side device uses the uplink carrier to transmit the SC information of the uplink information in the current uplink subframe. The SC-FDMA symbol other than the FDMA symbol receives the uplink information transmitted by the user equipment with multiple uplink TAs, and further includes:

For the PUCCH transmission, the network side device receives the uplink information by using the shortened PUCCH format; or for the PUSCH transmission, the network side device reserves the uplink information for the SRS transmission based on the last SC-FDMA symbol reservation for the SRS transmission. Preferably, if the uplink channel/signal in the current uplink subframe overlaps all or part of the SC-FDMA symbol and the PRACH continuously transmitted in the at least one uplink subframe, the method further includes:

The network side device determines that no uplink information is received in the current uplink subframe on the uplink carrier except the uplink carrier where the PRACH is located; or

For an uplink carrier other than the uplink carrier where the PRACH is located, if the uplink channel/signal after K SC-FDMA symbols are reserved on the uplink carrier in the current uplink subframe, the PR/FDMA symbol remains on all or part of the SC-FDMA symbol. The network side device determines that the uplink carrier does not receive any uplink data in the current uplink subframe; or the network side device determines that each uplink carrier in the current uplink subframe receives the uplink information;

Preferably, the method further includes: if there is an SRS transmission in the last SC-FDMA symbol in the current uplink subframe or the current uplink subframe is an SRS transmission subframe and the last SC-FDMA symbol of the SRS in one uplink subframe The network side device determines that the uplink carrier other than the uplink carrier having the largest uplink TA does not transmit the uplink information after the uplink channel in the current uplink subframe is further reserved; or

If the current uplink subframe has an SRS transmission in the first SC-FDMA symbol or the current uplink subframe is an SRS transmission subframe and the SRS is transmitted in the first SC-FDMA symbol in one uplink subframe, the network side device determines The uplink carrier other than the uplink carrier with the smallest uplink TA further reserves the uplink information in the first 2 SC-FDMA symbols in the uplink channel in the current uplink subframe;

The uplink channel includes at least one of PUCCH, PUSCH, and PRACH.

Preferably, the network side device only receives the SRS of the uplink carrier with the same uplink TA in the same uplink subframe. In FIG. 5 and FIG. 6, a process may be synthesized to form another method for transmitting uplink information, that is, step 501 to step 502 are performed first, and then step 602 is performed. There is no necessary connection between step 602 and step 501 and step 502, and only need to be guaranteed before step 602.

The scheme of the present invention will be described below by exemplifying several scenarios.

Scenario 1: The UE aggregates 3 carriers for uplink transmission, and belongs to different TA groups. The TAs of carriers 1 and 2 are smaller than carrier 3, and the difference is about 0.5 SC-FDMA symbols. Then carrier 1 and carrier 2 are in the current uplink subframe. The last SC-FDMA symbol will partially overlap with the first SC-FDMA symbol of carrier 3 in the next adjacent uplink subframe, at this time:

UE side:

method 1 :

The UE receives the high layer signaling or the PDCCH signaling sent by the base station, or the UE and the base station pre-agree to determine the carrier.

The last SC-FDMA symbol of all uplink subframes on 1 and 2 is vacant and does not transmit any uplink information; the carrier TA has the largest TA, and the last SC-FDMA symbol of the uplink channel/signal on it does not match the other carriers. The first SC-FDMA symbol in the next adjacent uplink subframe overlaps, so there is no need to vacate the uplink channel/signal on carrier 3. Any SC-FDMA symbol to ensure its transmission efficiency; as shown in Figure 7, regardless of whether there is overlap in the current subframe, it is necessary to vacate the last SC-FDMA symbol in the current subframe for Carrier 1 and Carrier 2;

In subframe i, the UE's PUCCH on carrier 1 is transmitted using shortened PUCCH format; the PUSCH on carrier 2 is rate matched for transmission based on the last SC-FDMA symbol vacancy;

Method 2:

Determining a hollow symbol for each subframe according to a specific transmission situation. As shown in FIG. 8, for subframe i-1, there is uplink channel transmission on carrier 3 in the next adjacent subframe i, and subframe i is required. -1, the last SC-FDMA symbol of the uplink channel on carriers 1 and 2 is vacant; for subframe i, there is no uplink channel transmission on carrier 3 in the next adjacent subframe i+1, then no pair is needed. The last SC-FDMA symbol of the uplink channel on carriers 1 and 2 in frame i is vacant to improve transmission efficiency;

In subframe i-1, the PUCCH of the UE on carrier 1 is transmitted using the shortened PUCCH format; the PUSCH on carrier 2 is rate matched transmission based on the last SC-FDMA symbol vacancy; in subframe i, there is no need to vacate the SC- The FDMA symbol, 传输 transmits each upstream channel in a conventional manner.

Determine the transmit power:

The UE calculates the target transmit power of the uplink channel on each carrier according to the power control parameter and the power control formula on each carrier, and determines whether the sum of the UE transmit powers in the current subframe i exceeds the maximum transmit power, if not, Then, each uplink channel is transmitted according to the target transmit power; if it exceeds, the PUCCH transmit power is preferentially guaranteed not to be reduced according to the channel priority, and the equal-proportion power is reduced for the PUSCH on the carrier 2 and the carrier 3 to satisfy, after the power is reduced, The sum of the PUSCH transmit powers on carriers 2, 3 does not exceed the maximum transmit power minus the transmit power of the PUCCH on carrier 1: the PUCCH is transmitted with the target transmit power, and the PUSCH is transmitted according to the transmit power after the power is reduced.

Base station side:

Consistent with the understanding of the UE, for Method 1, it is determined that the PUCCH on Carrier 1 in each uplink subframe is received by shortened PUCCH format, and the PUSCH on Carrier 2 is subjected to de-rate matching reception based on the last SC-FDMA symbol vacancy; Method 2, in subframe i-1, the receiving method is the same as method 1, and in subframe i, it is received according to a conventional method.

Scenario 2: The UE aggregates 4 carriers for uplink transmission, and the TA group is different. The TA pre-carrier 1 of carrier 2 has about 0.5 SC-FDMA symbols, and the TA pre-carrier 1 of carrier 3 and carrier 4 has about 0.8 SC-FDMA symbols. Then, the first SC-FDMA symbol of the carrier 3, 4 in the uplink subframe i overlaps with the last SC-FDMA symbol of the carrier 1, 2 in the adjacent uplink subframe i-1, and the carrier 2 is The first SC-FDMA symbol in the uplink subframe i overlaps with the last SC-FDMA symbol of the carrier 1 in the adjacent uplink subframe i+1, and the SRS is transmitted in the last SC-FDMA symbol, at this time:

UE side: Method 1:

The UE receives the high layer signaling or PDCCH signaling sent by the base station, or the UE and the base station pre-arrange, and determines that the first SC-FDMA symbol of the current or all uplink subframes on the carriers 2, 3, 4 is vacant and does not transmit any uplink information, As shown in FIG. 9; since the TA of carrier 1 is the smallest, the first SC-FDMA symbol of the uplink channel/signal on the carrier will not be the last SC-FDMA symbol in the previous adjacent uplink subframe on the other carriers. Simultaneous transmission, so there is no need to vacate any SC-FDMA symbols for the upstream channel/signal on carrier 1 to ensure its transmission efficiency;

In the current subframe i: the UE has both SRS and PUCCH transmissions on the carrier 1, and when the configuration supports SRS and ACK/NACK transmission simultaneously, the PUCCH is transmitted by using the shortened PUCCH format, otherwise the SRS is discarded, and the normal PUCCH format is used for transmission; Carrier 2 only has a PUSCH transmission, and the first SC-FDMA symbol is vacant, then the rate matching transmission is performed on the PUSCH based on the first SC-FDMA symbol vacancy; the UE has both SRS and PUSCH transmissions on the carrier 3, and the first one If the SC-FDMA symbol is vacant, the first SC-FDMA symbol is vacant and the last SC-FDMA symbol reserved for the SRS to perform rate matching transmission on the PUSCH; the UE has only SRS transmission on the carrier 4, and the first SC- If the FDMA symbol is vacant, the UE transmits the SRS on the last SC-FDMA symbol of the carrier;

The UE calculates the target transmit power of the uplink channel on each carrier according to the power control parameters and the power control formula on each carrier, and performs power reduction according to the following steps:

Step 1: Determine whether the sum of the target transmit powers of the PUCCH on the carrier 1 and the PUSCH on the carriers 2 and 3 in the current subframe i exceeds the maximum transmit power. If it exceeds, according to the channel priority, the PUCCH transmit power is preferentially guaranteed not to decrease. Equalizing the power of the PUSCH on the carrier 2 and the carrier 3 to meet, after the power is reduced, the sum of the transmit powers of the PUSCHs on the carriers 2 and 3 in the current subframe i does not exceed the maximum transmit power minus the carrier 1 The transmit power of the PUCCH is obtained as the actual transmit power of the PUSCH on the carriers 2 and 3; otherwise, the target transmit power of the PUSCH on the carriers 2 and 3 is taken as the actual transmit power;

Step 2: Determine the target transmit power of the PUCCH on the carrier 1 in the current subframe i, the actual transmit power of the PUSCH on the carrier 2 (ie, the power obtained in step 1), and the sum of the target transmit powers of the SRSs on the carriers 3 and 4. Whether the maximum transmit power is exceeded, if it exceeds, the SRS on the carriers 3, 4 is equally proportionally reduced, so as to satisfy the power reduction, the sum of the transmit powers of the SRSs on the carriers 3, 4 does not exceed the maximum transmit power minus the carrier 1 PUCCH, the actual transmit power of the PUSCH on carrier 2, and record the transmit power P3, P4 after the SRS power reduction on carriers 3, 4; if not, record the target transmit power of the SRS on carriers 3, 4 as P3 , P4;

Step 3: Determine whether the sum of the target transmit power of the SRS on the carrier 1 in the current subframe i, the actual transmit power of the PUSCH on the carrier 2 (ie, the power obtained in step 1), and the target transmit power of the SRS on the carriers 3 and 4 exceeds Maximum transmit power, if exceeded, equalizes the power of the SRS on carriers 1, 3, and 4 to meet the power reduction. The sum of the transmit powers of the SRSs on carriers 1, 3, and 4 does not exceed the maximum transmit power minus the carrier. The actual transmit power of the PUSCH on 2, the actual transmit power of the SRS on carrier 1 after the power is reduced, and recorded on the carriers 3, 4 The transmit power P3', Ρ4' after the SRS power is reduced; if not, determine that the target transmit power of the SRS on carrier 1 is the actual transmit power, and record the target transmit power of the SRS on carriers 3, 4 as Ρ3', Ρ4';

Step 4: Determine the smaller of Ρ3 and P3' as the actual transmit power of SRS on carrier 3; determine the smaller of Ρ4 and P4' as the actual transmit power of SRS on carrier 4;

Method 2:

The specific vacancy situation is the same as mode 1; in addition, it is considered that the SRS of the uplink carriers 3 and 4 having the largest 与 overlaps with the last two SC-FDMA symbols of the carrier channel 1 and the carrier 2 upstream channel, in order to avoid the simultaneous SRS at 2 The SC-FDMA symbols are transmitted simultaneously with the uplink channel on other carriers, and may additionally configure or stipulate that the last two SC-FDMA symbols in the current subframe on Carrier 1 and Carrier 2 do not transmit any uplink channel bearer information (such as UCI). And uplink data), but the SRS can be transmitted in the last SC-FDMA symbol; as shown in FIG. 10;

In the current subframe i, the UE has both SRS and PUCCH transmissions on the carrier 1, and the PUCCH needs to vacate the last two SC-FDMA symbol transmissions. In this case, a new PUCCH format needs to be defined, and a new time domain spreading length is used to avoid Data is mapped to the last 2 SC-FDMA symbols, SRS is transmitted in the last SC-FDMA symbol; UE has only PUSCH transmission on carrier 2, and the first SC-FDMA symbol is vacant, and the last 2 SC-FDMA symbols are vacant, then Performing rate matching transmission on the PUSCH based on the first and last 2 SC-FDMA symbols vacant; the UE has both SRS and PUSCH transmissions on the carrier 3, and only the first SC-FDMA symbol is vacant, based on the first SC- The FDMA symbol is vacant and the last SC-FDMA symbol is reserved for the SRS to perform rate matching transmission on the PUSCH; the UE has only SRS transmission on the carrier 4, and only the first SC-FDMA symbol is vacant, then the last SC of the carrier -FDMA symbol transmission SRS;

Step 2: Determine whether the sum of the target transmit power of the SRS on the carrier 1 in the current subframe i and the target transmit power of the SRS on the carriers 3, 4 exceeds the maximum transmit power, if exceeded, on the carriers 1, 3, and 4. The SRS performs a proportional power reduction to meet the power reduction, and the sum of the transmit powers of the SRSs on the carriers 1, 3, and 4 does not exceed the maximum transmit power, and obtains the actual transmit power of the SRSs on the carriers 1, 3, and 4; , determining that the target transmit power of the SRS on carriers 1, 3, and 4 is the actual transmit power;

Base station side: Consistent with the understanding of the UE, for mode 1: in the current subframe i: if SRS and ACK/NACK are supported for simultaneous transmission, the PUCCH and SRS are received on the carrier 1 using the shortened PUCCH format, otherwise the PUCCH is received in the normal PUCCH format; Performing a de-rate matching receiving PUSCH on carrier 2 based on the first SC-FDMA symbol vacancy; performing de-rate matching receiving PUSCH and SRS on carrier 3 based on the first SC-FDMA symbol vacancy and the last SC-FDMA symbol transmission SRS; The SRS is received on the last SC-FDMA symbol on carrier 4.

For mode 2: in current subframe i: If SRS and ACK/NACK are supported for simultaneous transmission, PUCCH and SRS are received in the new PUCCH format with 2 SC-FDMA symbols vacant on carrier 1; otherwise, 2 after use The new PUCCH format with the SC-FDMA symbol vacant receives the PUCCH; performs de-rate matching on the carrier 2 based on the first and last two SC-FDMA symbols vacant; the carrier is based on the first SC-FDMA symbol vacant and finally An SC-FDMA symbol transmission SRS performs de-rate matching for receiving PUSCH and SRS; and receives SRS on the last SC-FDMA symbol on carrier 4.

It should be noted that, in the foregoing process, preferably, when an uplink carrier is used, it may be determined that the uplink carrier whose TA is smaller than the carrier in the previous adjacent uplink subframe of the current uplink subframe does not exist on the last SC-FDMA symbol. Data transmission (ie, where possible, there is no uplink channel/signal transmission on the uplink carrier where the TA is smaller than the carrier in the previous adjacent uplink subframe, or the PUCCH is shortened format and the last SC-FDMA symbol has no SRS transmission, or the PUSCH is based on When the last SC-FDMA symbol rate matches and the last SC-FDMA symbol has no SRS transmission), the first K SC-FDMA symbols may not be vacant in the current uplink subframe, that is, K=0.

Scene 3:

The UE aggregates 4 carriers for uplink transmission, and the TA group is different, and the TA of the carrier 2 leads the carrier 1

0.5 SC-FDMA symbol, TA pre-carrier 1 of carrier 3, 4 is about 0.8 SC-FDMA symbol, then the first SC-FDMA symbol of carrier 3, 4 in uplink subframe i will be with carrier 1, 2 The last SC-FDMA symbol in the adjacent uplink subframe i-1 partially overlaps, and the first SC-FDMA symbol of the carrier 2 in the uplink subframe i is adjacent to the carrier 1 in the uplink subframe i+1. The last SC-FDMA symbol in the overlap partially overlaps, the SRS is transmitted in the last SC-FDMA symbol, and there is only one TA SRS transmission in one uplink subframe, at this time:

UE side:

The UE receives the high layer signaling or PDCCH signaling sent by the base station, or the UE and the base station pre-arrange, and determines that the first SC-FDMA symbol of the current or all uplink subframes on the carriers 2, 3, 4 is vacant and does not transmit any uplink information, As shown in FIG. 11; since the TA of carrier 1 is the smallest, the first SC-FDMA symbol of the uplink channel/signal on the carrier will not be the last SC-FDMA symbol in the previous adjacent uplink subframe on the other carriers. Simultaneous transmission, so there is no need to vacate any SC-FDMA symbols for the upstream channel/signal on carrier 1 to ensure its transmission efficiency;

In the current subframe i: the UE has only PUCCH transmission on carrier 1, and transmits in normal PUCCH format; only PUSCH transmission exists in carrier 2, and the first SC-FDMA symbol is vacant, based on the first SC-FDMA The symbol vacant performs rate matching transmission on the PUSCH; the SRS and PUSCH transmissions exist simultaneously on the carrier 3, and the first SC-FDMA symbol is vacant, based on the first SC-FDMA symbol vacancy and the last SC-FDMA symbol reservation The SRS performs rate matching transmission on the PUSCH, and transmits SRS in the last SC-FDMA symbol; only SRS transmission exists in the carrier 4, and the first SC-FDMA symbol is vacant, then the UE is in the last SC-FDMA symbol of the carrier. Transmitting SRS;

Step 2: Determine whether the sum of the target transmit power of the SRS on the carriers 3 and 4 in the current subframe i and the actual transmit power of the PUCCH on the carrier 1 and the actual transmit power of the PUSCH on the carrier 2 exceed the maximum transmit power. The SRS on carriers 3, 4 performs equal power reduction to meet the power reduction. The sum of the transmit powers of the SRSs on carriers 3, 4 does not exceed the maximum transmit power minus the actual transmit power of PUCCH on carrier 1 and the PUSCH on carrier 2. The actual transmit power is obtained, and the actual transmit power of the SRS on the carriers 3, 4 is obtained; if not, the target transmit power of the SRS on the carriers 3, 4 is determined to be the actual transmit power;

Base station side:

Consistent with the understanding on the UE side, in the current subframe i, the base station receives the PUCCH on the carrier 1 using the normal PUCCH format; on the carrier 2, the demodulation matching receives the PUSCH based on the first SC-FDMA symbol vacancy; on the carrier 3 Demodulating the received PUSCH and SRS based on the first SC-FDMA symbol vacancy and the last SC-FDMA symbol transmission SRS; receiving the SRS on the last SC-FDMA symbol determined on carrier 4.

It should be noted that, in the foregoing process, when an uplink carrier is used, it can be determined that the uplink carrier with the TA smaller than the carrier in the previous adjacent uplink subframe of the current uplink subframe does not exist on the last SC-FDMA symbol. Data transmission (ie, where possible, there is no uplink channel/signal transmission on the uplink carrier where the TA is smaller than the carrier in the previous adjacent uplink subframe, or the PUCCH is shortened format and the last SC-FDMA symbol has no SRS transmission, or the PUSCH is based on When the last SC-FDMA symbol rate matches and the last SC-FDMA symbol has no SRS transmission), the first K SC-FDMA symbols may not be vacant in the current uplink subframe, that is, K=0.

Scenario 4: The UE aggregates 4 carriers for uplink transmission, and the TA group is different. The TAs 3 and 4 of the carriers 1 and 2 are about 0.5 SC-FDMA symbols, and the carriers 3 and 4 are the last one of the uplink subframes i. The SC-FDMA symbol will partially overlap with the first SC-FDMA symbol of the carrier 1, 2 in the adjacent uplink subframe i+1, and the SRS is The first SC-FDMA symbol is transmitted, and only one TA of the SRS is transmitted in one uplink subframe. At this time: UE side:

The UE receives the high layer signaling or PDCCH signaling sent by the base station or the UE and the base station pre-arrange, and determines that the last SC-FDMA symbol of the current or all uplink subframes on the carriers 3, 4 is vacant and does not transmit any uplink information, as shown in FIG. 12 As shown, since the TA of the carriers 1, 2 is the largest, the last SC-FDMA symbol of the uplink channel/signal on the carrier will not be the same as the first SC-FDMA symbol in the next adjacent uplink subframe on the other carriers. Transmission, so there is no need to vacate any SC-FDMA symbols for the upstream channel/signal on carriers 1, 2 to ensure its transmission efficiency;

In the current subframe i: the UE has both PUCCH and SRS transmissions on the carrier 1. When the SRS and the ACK/NACK are simultaneously transmitted, a new shortened PUCCH format needs to be defined to support the SRS in the first SC-FDMA symbol transmission. The single implementation manner is to exchange the time domain orthogonal spreading sequence used by the two slots of the shortened PUCCH format in Rel-10, that is, the first time slot uses a time domain orthogonal spreading sequence of length 4, The second SC-FDMA symbol begins to map, and the second time slot uses a time domain orthogonal spreading sequence of length 5. The SRS is transmitted in the first SC-FDMA symbol, otherwise, the SRS is discarded, and the normal PUCCH format is transmitted. ; there are both PUSCH and SRS transmissions on carrier 2, then the first SC-FDMA symbol reservation is used to transmit the SRS for rate matching transmission of the PUSCH, and the SRS is transmitted in the first SC-FDMA symbol; There is a PUSCH transmission, and the last SC-FDMA symbol is vacant, then the rate matching transmission is performed on the PUSCH based on the last SC-FDMA symbol vacancy; the UE according to the power control parameter and the power control formula on each carrier Operators upstream channel obtained on the target transmit power of each carrier, and reducing the power according to the following steps:

Step 2: Determine whether the sum of the target transmit power of the SRS on the carriers 1 and 2 in the current subframe i and the actual transmit power of the PUSCH on the carrier 3 exceeds the maximum transmit power, and if so, the SRS on the carriers 1, 2, etc. The proportional power is reduced, so as to satisfy the power reduction, the sum of the transmit powers of the SRSs on the carriers 1, 2 does not exceed the maximum transmit power minus the actual transmit power of the PUSCH on the carrier 3, and the actual transmit power of the SRS on the carriers 1, 2 is obtained; Not exceeding, determining that the target transmit power of the SRS on carriers 1, 2 is the actual transmit power;

Base station side:

Consistent with the understanding of the UE, in the current subframe i, the base station receives the PUCCH and SRS on the carrier 1 with the newly defined shortened PUCCH format; the carrier 2 performs the de-rate matching reception PUSCH based on the first SC-FDMA symbol transmission SRS. SRS; de-rate matching on carrier 3 based on the last SC-FDMA symbol vacancy Receive PUSCH.

It should be noted that, in the foregoing process, when an uplink carrier is used, it may be determined that the uplink carrier with the TA greater than the carrier in the next adjacent uplink subframe of the current uplink subframe is on the first SC-FDMA symbol. When there is no data transmission (that is, if there is no uplink channel/signal transmission on the uplink carrier in which the TA is greater than the carrier in the next adjacent uplink subframe), the K-SC-FDMA symbols may not be vacant in the current uplink subframe, that is, K=0.

Scenario 5: The UE aggregates three carriers for uplink transmission, and the TA group is different. The carrier 2 of the carrier 2 has about 0.5 SC-FDMA symbols, and the carrier 3 transmits the PRACH in the uplink subframe i-1. The format2 preamble sequence) continues for 2 subframes, so carriers 1 and 2 have some or all of the SC-FDMA symbols overlapping with the PRACH in subframe il, subframe i, and subframe i+1.

UE side:

Mode A: Since carriers 1 and 2 have some or all of the SC-FDMA symbols overlapping with the PRACH in subframe i-1, subframe i, and subframe i+1, the UE determines that in the subframes of carriers 1 and 2 The uplink information is not transmitted, and the PRACH is transmitted only on the carrier where the PRACH is located, as shown in FIG. 13A; if there are PUCCHs and/or PUSCHs transmitted in these subframes (for example, the base station misroutes the PUSCH, or configures/triggers the SRS/CSI transmission, Or, if the PDSCH is scheduled to perform ACK/NACK feedback, the UE considers that it is a scheduling error and does not transmit these channels.

Mode B: Since carrier 1 and carrier 2 are in subframe i+1, only the first part of the SC-FDMA symbol overlaps with the PRACH, and the UE may be SC-FDMA that does not overlap with the PRACH in subframes i+1 on carriers 1 and 2. The uplink channel/signal is transmitted on the symbol. As shown in FIG. 13B, the last SC-FDMA symbol in the subframe i+1 of the carrier 2 transmits the SRS (ie, the base station configures the subframe as an SRS subframe).

Mode C: Supporting the simultaneous transmission of the PRACH and other uplink channels/signals, the UE receiving the high layer signaling or PDCCH signaling sent by the base station or the UE and the base station pre-arranging to determine that the first SC-FDMA symbol in the one subframe of the carrier 2 is vacant Do not transmit any uplink information to avoid simultaneous transmission of the uplink channel/signal in the previous uplink subframe on carrier 1 and the uplink channel/signal in the current uplink subframe on carrier 2; since the TA of carrier 1 is smaller than carrier 2, The first SC-FDMA symbol of the uplink channel/signal on is not transmitted simultaneously with the last SC-FDMA symbol in the previous adjacent uplink subframe on Carrier 2, so the upstream channel on Carrier 1 is not required/ The signal is vacant with any SC-FDMA symbol to ensure its transmission efficiency, as shown in Figure 13C;

The specific transmission mode is as follows: the PUCCH and the PUSCH in the Rel-8/910 can be reused on the carrier 1, and the SRS transmission mode is: in the non-SRS subframe, the normal PUCCH format or the PUSCH is used to perform rate matching based on all symbol transmission data; In the subframe, when ACK/NACK and SRS are supported for simultaneous transmission, the shorted PUCCH format is used, and the SRS can be transmitted in the last SC-FDMA symbol, otherwise, the SRS is discarded, the normal PUCCH format is transmitted, or the PUSCH is based on the last SC. - FDMA symbol reservation for rate matching of SRS, SRS can be transmitted in the last SC-FDMA symbol. On carrier 2, in the non-SRS subframe, the PUSCH performs rate matching based on the first SC-FDMA vacancy; in the SRS subframe, the PUSCH is based on the first SC-FDMA vacancy and the last one The SC-FDMA symbol is reserved for rate matching of the SRS, and the SRS can be transmitted in the last SC-FDMA; in addition, the UE needs to calculate the uplink channel on each carrier according to the power control parameter and the power control formula on each carrier. Target transmit power, and perform power reduction as follows:

For subframe i:

Determining whether the sum of the target transmit powers of the PUSCHs on carriers 1 and 2 in subframe i exceeds the maximum transmit power minus the transmit power of the PRACH, and if so, the equal power of the PUSCHs on carriers 1 and 2 according to the channel priority After the power is reduced, the sum of the transmit powers of the PUSCHs on carriers 1 and 2 in subframe i does not exceed the maximum transmit power minus the transmit power of the PRACH, and the actual transmit power of the PUSCH on carriers 1 and 2 is obtained; otherwise , using the target transmit power of the PUSCH on carriers 1 and 2 as the actual transmit power;

For subframe i+1 :

Determining whether the sum of the target transmit power of the PUCCH on carrier 1 and the PUSCH on carrier 2 in subframe i+1 exceeds the maximum transmit power minus the transmit power of the PRACH. If it exceeds, according to the channel priority, the PUCCH transmit power is preferentially guaranteed. Decrease, the power of the PUSCH on 2 is reduced to meet the power reduction, and the sum of the transmit power of the PUCCH on carrier 1 and the PUSCH on the second subframe i+1 does not exceed the maximum transmit power minus the transmit power of the PRACH, if When the PUSCH power is reduced to 0, the total transmit power of the UE still exceeds the maximum transmit power, and the transmit power of the PUCCH is further reduced, thereby obtaining the actual transmit power of the PUCCH on the carrier 1 and the PUSCH on the carrier 2; otherwise, the PUCCH on the carrier 1 And the target transmit power of the PUSCH on carrier 2 is taken as the actual transmit power.

Base station side:

Manner A: Since some or all of the SC-FDMA symbols overlap with the PRACH in the subframe il, the subframe i, and the subframe i+1, the base station schedules or pre-configures the SC-FDMA symbols reserved by the UE into one subframe. The maximum number of SC-FDMA symbols, or the UE does not support the simultaneous transmission of other uplink channels/signals and PRACH, it is determined that there is no uplink information transmission in these subframes, and no uplink information is received, only on the carrier where the PRACH is located. Receiving PRACH;

Mode B: Since carrier 1 and carrier 2 are in subframe i+1, only the first part of SC-FDMA symbols overlap with PRACH, and the base station may not overlap with PRACH in subframes i+1 on carriers 1 and 2 The uplink channel/signal is received on the symbol. As shown in FIG. 13B, the last SC-FDMA symbol in the subframe i+1 of the carrier 2 receives the SRS (better, the base station should preferentially configure the subframe as an SRS subframe).

Mode C: Supporting simultaneous transmission of PRACH and other uplink channels/signals, high-level signaling or PDCCH signaling sent by the base station to the UE or pre-agreed with the UE, the first SC-FDMA symbol in one subframe of the carrier 2 is vacant and not transmitted. Any uplink information to avoid simultaneous transmission of the uplink channel/signal in the previous uplink subframe on carrier 1 and the uplink channel/signal in the current uplink subframe on carrier 2; since the TA of carrier 1 is smaller than carrier 2, The first SC-FDMA symbol of the upstream channel/signal is not transmitted simultaneously with the last SC-FDMA symbol in the previous adjacent uplink subframe on Carrier 2, so there is no need to vacate the upstream channel/signal on Carrier 1. Any SC-FDMA character No. to ensure its transmission efficiency, as shown in Figure 13C;

The specific receiving manner is as follows: The base station receives the uplink information in the subframes i and i+1 of the carriers 1 and 2. The carrier 1 can reuse the PUCCH, PUSCH, and SRS transmission modes in the Rel-8/910: in the non-SRS subframe.解Use normal PUCCH format or PUSCH to perform rate-matching based on all symbol transmission data; In SRS subframes, when ACK/NACK and SRS are supported for simultaneous transmission, use shortened PUCCH format to receive in the last SC-FDMA symbol. SRS, otherwise, does not receive SRS, uses normal PUCCH format transmission, or PUSCH performs de-rate matching based on the last SC-FDMA symbol reservation for SRS, and can receive SRS in the last SC-FDMA symbol. On carrier 2, in the non-SRS subframe, the PUSCH performs de-rate matching based on the first SC-FDMA vacancy; in the SRS subframe, the PUSCH is based on the first SC-FDMA vacancy and the last SC-FDMA symbol reservation The SRS performs rate-matching and can receive the SRS in the last SC-FDMA.

It should be noted that, in the foregoing process, when an uplink carrier is used, it can be determined that the uplink carrier with the TA smaller than the carrier in the next adjacent uplink subframe of the current uplink subframe does not exist on the last SC-FDMA symbol. During data transmission, the first K-FDMA symbols may not be vacant in the current uplink subframe, that is, K=0, that is, in subframe i, for carrier 2, the first SC-FDMA symbol may not be vacant.

Those skilled in the art will appreciate that embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the present invention can be embodied in the form of a computer program product embodied on one or more computer-usable storage interfaces (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer usable program code.

The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the invention. It will be understood that each process and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions are provided for implementing one or more processes and/or block diagrams in the flowchart The steps of the function specified in the box or in multiple boxes.

Although the preferred embodiment of the invention has been described, it will be apparent to those of ordinary skill in the art that <RTIgt; Therefore, the appended claims are intended to be construed as including the preferred embodiments and the modifications

It is apparent that those skilled in the art can make various modifications and variations to the invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and modifications of the invention

Claims

Rights request

A method for transmitting uplink information, characterized in that the method comprises:

The user equipment maps the uplink information to be transmitted to the uplink carrier, except the K in the current uplink subframe.

Transmission is performed on SC-FDMA symbols for transmitting uplink information other than SC-FDMA symbols.

2. The method according to claim 1, wherein the user equipment determines the K SC-FDMA symbols, including:

Determining, by the user equipment, the K SC-FDMA symbols according to a configuration of a high layer signaling or a physical downlink control channel PDCCH signaling; or

Determining, by the user equipment, the K SC-FDMA symbols according to a pre-protocol with the network side device; or determining, by the user equipment, whether there is a reserved SC in the current uplink subframe according to a specific bit field in the PDCCH signaling. The FDMA symbol, when it is determined to exist, determines that the K SC-FDMA symbols pre-configured by the high layer signaling or the PDCCH signaling are the K SC-FDMA symbols, and when the determination does not exist, determines that there is no reservation in the current uplink subframe. The SC-FDMA symbol, where the PDCCH is a PDCCH in a downlink subframe corresponding to a positive acknowledgement ACK/negative acknowledgement NACK feedback in a current uplink subframe, and/or a physical uplink share in a corresponding current uplink subframe PDCCH of channel PUSCH;

The high layer signaling is radio resource control RRC signaling or media access control MAC signaling.

3. The method according to claim 1, wherein the K SC-FDMA symbols are the first K SC-FDMA symbols in the current uplink subframe; or

The K SC-FDMA symbols are the last K SC-FDMA symbols in the current uplink subframe; or

The K SC-FDMA symbols are the first K1 SC-FDMA symbols and the last K2 SC-FDMA symbols in the current uplink subframe, where K1+K2=K; or,

The sounding reference signal SRS is transmitted in the last SC-FDMA symbol in the current uplink subframe, and the K SC-FDMA symbols are the first K SC-FDMA symbols in the current uplink subframe; or

The SRS is transmitted in the first SC-FDMA symbol in the current uplink subframe, and the K SC-FDMA symbols are the last K SC-FDMA symbols in the current uplink subframe.

The method according to claim 3, wherein if the K SC-FDMA symbols are the first K SC-FDMA symbols in the current uplink subframe, the user equipment determines the K SC- The FDMA symbol further includes:

The user equipment determines to reserve the K SC-FDMA symbols in an uplink subframe only for uplink carriers other than the uplink carrier with the smallest uplink TA, or the user equipment determines the uplink carrier with the smallest uplink TA There is no need to reserve SC-FDMA symbols in an uplink subframe; and/or,

For an uplink carrier, if the uplink TA is smaller than the other uplink carriers of the uplink carrier, the uplink information is not transmitted on the last K SC-FDMA symbols in the previous neighboring uplink subframe of the current uplink subframe, and the user equipment determines The first K SC-FDMA symbols are not reserved for the uplink carrier in the current uplink subframe.

5. The method according to claim 3, wherein if the K SC-FDMA symbols are the last K SC-FDMA symbols in the current uplink subframe, the user equipment determines the K SC-FDMA symbols And the user equipment determines that the K SC-FDMA symbols are reserved in an uplink subframe only for uplink carriers other than the uplink carrier with the largest uplink TA, or the user equipment determines that the pair has the largest uplink. The uplink carrier of the TA does not need to reserve the SC-FDMA symbol in one uplink subframe; and/or,

For an uplink carrier, if the uplink TA is greater than the other uplink carriers of the uplink carrier, the uplink information is not transmitted on the first K SC-FDMA symbols in the next adjacent uplink subframe of the current uplink subframe, and the user equipment determines The last K SC-FDMA symbols are not reserved for the uplink carrier in the current uplink subframe.

The method according to any one of claims 1 to 5, wherein the user equipment maps the uplink information to be transmitted to the uplink carrier, except for the K SC-FDMA symbols in the current uplink subframe. The other transmissions are performed on the SC-FDMA symbols used to transmit the uplink information, including:

For physical uplink control channel PUCCH transmission, the user equipment performs time domain orthogonal spreading based on SC-FDMA symbols for transmitting uplink information except for the K SC-FDMA symbols in one uplink subframe. Transmission format for transmitting the uplink information; or

For physical uplink shared channel PUSCH transmission, the user equipment performs rate matching on the uplink based on SC-FDMA symbols for transmitting uplink information except for the K SC-FDMA symbols in one uplink subframe. information.

7. The method according to claim 6, wherein if K=l, and the one SC-FDMA symbol is the last SC-FDMA symbol in the current uplink subframe, the user equipment is to be transmitted. The uplink information is mapped to the uplink carrier for transmission on the SC-FDMA symbol for transmitting uplink information except the K SC-FDMA symbols in the current uplink subframe, and further includes:

For PUCCH transmission, the user equipment transmits the uplink information by using a shortened PUCCH format shortened PUCCH format; or

For PUSCH transmission, the user equipment performs rate matching on the last SC-FDMA symbol reservation for transmitting the uplink information.

8. The method according to any one of claims 1 to 5, characterized in that, if all or part of the current uplink subframe

The SC-FDMA symbol overlaps with the physical random access channel PRACH that is continuously transmitted in the at least one uplink subframe, and the method further includes:

The user equipment determines that the uplink carrier other than the uplink carrier where the PRACH is located is in the current uplink subframe. Do not transmit any upstream information; or

For an uplink carrier other than the uplink carrier where the PRACH is located, if the uplink channel/signal after the K SC-FDMA symbols are reserved on the uplink carrier in the current uplink subframe is still on all or part of the SC-FDMA symbol And overlapping with the PRACH, the user equipment determines that the uplink carrier does not transmit any uplink information in the current uplink subframe; or

The user equipment performs power control on the uplink channel/signal in the current uplink subframe based on the transmit power of the PRACH, and transmits the uplink channel/signal in the current uplink subframe according to the transmit power of the power control;

The method according to any one of claims 1 to 5, further comprising:

If there is an SRS transmission in the last SC-FDMA symbol in the current uplink subframe or the current uplink subframe is an SRS transmission subframe and the last SC-FDMA symbol transmission of the SRS in one uplink subframe, the user equipment determines that in addition to having The uplink carrier other than the uplink carrier of the largest uplink TA is further reserved after the uplink channel in the current uplink subframe is further reserved. 2 SC-FDMA symbols do not transmit uplink information; or

If the current uplink subframe has an SRS transmission in the first SC-FDMA symbol or the current uplink subframe is an SRS transmission subframe and the SRS is transmitted in the first SC-FDMA symbol in one uplink subframe, the user equipment determines The uplink carrier other than the uplink carrier with the smallest uplink TA further reserves the uplink information in the first 2 SC-FDMA symbols in the uplink channel in the current uplink subframe;

The uplink channel includes at least one of PUCCH, PUSCH, and PRACH.

The method according to any one of claims 1 to 5, further comprising:

The user equipment only has SRS transmissions of uplink carriers with the same uplink TA in the same uplink subframe.

A method for receiving uplink information, the method comprising:

The method according to claim 11, wherein after the network side device determines the K SC-FDMA symbols, the method further includes:

The network side device configures the K SC-FDMA symbols for the user equipment by using high layer signaling or PDCCH signaling; or

The network side device notifies the K SC-FDMA symbols in a manner agreed in advance with the user equipment; or

The network side device notifies the K-SC-FDMA symbol to the user equipment in advance through high-layer signaling or PDCCH signaling, and configures the user equipment in the current uplink subframe by using a specific bit field in the PDCCH signaling. Medium Whether to reserve the K SC-FDMA symbols, where the PDCCH is a PDCCH in a downlink subframe corresponding to a positive acknowledgement ACK/negative acknowledgement NACK feedback in a current uplink subframe, and/or a corresponding current uplink subframe PDCCH of the PUSCH in the medium;

The high layer signaling is RRC signaling or MAC signaling.

The method according to claim 11, wherein the K SC-FDMA symbols are the first K SC-FDMA symbols in the current uplink subframe; or

The last SC-FDMA symbol transmission of the SRS in the current uplink subframe, and the K SC-FDMA symbols are the first K SC-FDMA symbols in the current uplink subframe; or

The method according to claim 13, wherein if the K SC-FDMA symbols are the first K SC-FDMA symbols in the current uplink subframe, the network side device determines K SC-FDMA Symbols, further including:

The network side device determines to reserve the K SC-FDMA symbols in one uplink subframe only for an uplink carrier other than the uplink carrier with the smallest uplink TA, or the network side device determines that the pair has the smallest uplink TA The uplink carrier does not need to reserve SC-FDMA symbols in one uplink subframe; and/or,

For an uplink carrier, if the uplink TA is smaller than the other uplink carriers of the uplink carrier, the uplink information is not transmitted on the last K SC-FDMA symbols in the previous adjacent uplink subframe of the current uplink subframe, the network side device It is determined that the first K SC-FDMA symbols are not reserved for the uplink carrier in the current uplink subframe.

The method according to claim 13, wherein if the K SC-FDMA symbols are the last K SC-FDMA symbols in the current uplink subframe, the network side device determines K SC-FDMA symbols, Further comprising: the network side device determining to reserve the K SC-FDMA symbols in an uplink subframe only for uplink carriers other than the uplink carrier having the largest uplink TA, or the network side device determines that the pair has the largest The uplink carrier of the uplink TA does not need to reserve the SC-FDMA symbol in one uplink subframe; and/or,

For an uplink carrier, if the uplink TA is greater than the other uplink carriers of the uplink carrier, the uplink information is not transmitted on the first K SC-FDMA symbols in the next adjacent uplink subframe of the current uplink subframe, the network side device Determining that the remaining K SC-FDMA symbols are not reserved for the uplink carrier in the current uplink subframe.

The method according to any one of claims 11 to 15, wherein the network side device uses other uplink SC-FDMA symbols other than the SC-FDMA symbol for transmitting uplink information in the current uplink subframe by using the uplink carrier. The symbol receives the uplink information sent by the user equipment with multiple uplink TAs, including: For PUCCH transmission, the network side device performs time-domain orthogonal despreading transmission based on SC-FDMA symbols for transmitting uplink information except for the K SC-FDMA symbols in one uplink subframe. Format receives uplink information; or

For PUSCH transmission, the network side device performs de-rate matching to receive uplink information based on SC-FDMA symbols for transmitting uplink information except for the K SC-FDMA symbols in one uplink subframe.

The method according to claim 16, wherein if K=l, and the one SC-FDMA symbol is the last SC-FDMA symbol in the current uplink subframe, the network side device passes the uplink. The SC-FDMA symbol in the current uplink subframe except the SC-FDMA symbol that does not transmit the uplink information receives the uplink information sent by the user equipment that has multiple uplink TAs, and further includes:

For the PUCCH transmission, the network side device receives the uplink information by using the shortened PUCCH format; or for the PUSCH transmission, the network side device reserves the uplink information for the SRS transmission based on the last SC-FDMA symbol reservation for the SRS transmission.

The method according to any one of claims 11 to 15, wherein if the uplink channel/signal in the current uplink subframe is in all or part of the SC-FDMA symbol and the PRACH continuously transmitted in the at least one uplink subframe There is overlap, and the method further includes:

For an uplink carrier other than the uplink carrier where the PRACH is located, if the uplink channel/signal after the K SC-FDMA symbols are reserved on the uplink carrier in the current uplink subframe is still on all or part of the SC-FDMA symbol And overlapping with the PRACH, the network side device determines that the uplink carrier does not receive any uplink data in the current uplink subframe; or

The network side device determines that each uplink carrier in the current uplink subframe receives uplink information;

The method according to any one of claims 11 to 15, wherein the method further comprises:

If the current uplink subframe has an SRS transmission in the last SC-FDMA symbol or the current uplink subframe is an SRS transmission subframe and the SRS is transmitted in the last SC-FDMA symbol in one uplink subframe, the network side device determines The uplink carrier other than the uplink carrier with the largest uplink TA is further reserved after the uplink channel in the current uplink subframe is further reserved. 2 SC-FDMA symbols do not transmit uplink information; or

If the current uplink subframe has an SRS transmission in the first SC-FDMA symbol or the current uplink subframe is an SRS transmission subframe and the SRS is transmitted in the first SC-FDMA symbol in one uplink subframe, the network side device Determining that the uplink carrier other than the uplink carrier with the smallest uplink TA further reserves the uplink information in the first two SC-FDMA symbols in the uplink channel in the current uplink subframe;

The uplink channel includes at least one or more of a PUCCH, a PUSCH, and a PRACH.

The method according to any one of claims 11 to 15, wherein the method further comprises: the network side device receiving only the SRS of the uplink carrier with the same uplink TA in the same uplink subframe.

A user equipment for transmitting uplink information, where the user equipment includes:

a first determining module, configured to: when multiple uplink TAs are used, determine that the uplink carrier reserves K SC-FDMA symbols in the current uplink subframe, and does not transmit uplink information, where K is a non-negative integer;

And a transmitting module, configured to map the uplink information to be transmitted to the uplink carrier, and transmit the SC-FDMA symbol for transmitting uplink information except the K SC-FDMA symbols in the current uplink subframe.

The user equipment according to claim 21, wherein the first determining module is specifically configured to: determine the K SC-FDMA symbols according to a configuration of a high layer signaling or a PDCCH signaling; or

Determining the K SC-FDMA symbols according to a pre-arrangement with the network side device; or

Determining whether there is a reserved SC-FDMA symbol in the current uplink subframe according to a specific bit field in the PDCCH signaling, and determining that the high-level signaling or the PDCCH signaling pre-configured K SC-FDMA symbols are the And determining, by the PDCCH, a downlink subframe corresponding to ACK/NACK feedback in the current uplink subframe, when the number of the SC-FDMA symbols is not present, determining that there is no reserved SC-FDMA symbol in the current uplink subframe. PDCCH in the PDCCH, and/or a PDCCH corresponding to the PUSCH in the current uplink subframe;

The high layer signaling is RRC signaling or MAC signaling.

The user equipment according to claim 21, wherein the first determining module determines that the K SC-FDMA symbols are the first K SC-FDMA symbols in the current uplink subframe; or

The first determining module determines that the K SC-FDMA symbols are the last K SC-FDMA symbols in the current uplink subframe; or

The first determining module determines that the K SC-FDMA symbols are the first K1 SC-FDMA symbols and the last K2 SC-FDMA symbols in the current uplink subframe, where K1+K2=K; or

The first determining module determines a last SC-FDMA symbol transmission of the SRS in the current uplink subframe, and the K SC-FDMA symbols are the first K SC-FDMA symbols in the current uplink subframe; or

The first determining module determines a first SC-FDMA symbol transmission of the SRS in the current uplink subframe, and the

The K SC-FDMA symbols are the last K SC-FDMA symbols in the current uplink subframe.

The user equipment according to claim 23, wherein, if the K SC-FDMA symbols are the first K SC-FDMA symbols in the current uplink subframe, the first determining module is further configured to:

Determining that the K SC-FDMA symbols are reserved in one uplink subframe only for uplink carriers other than the uplink carrier with the smallest uplink TA, or determining that the uplink carrier with the smallest uplink TA is not needed in one uplink subframe Reserve SC-FDMA symbols; and/or,

For an uplink carrier, if the uplink TA is smaller than the other uplink carriers of the uplink carrier, the uplink information is not transmitted on the last K SC-FDMA symbols in the previous adjacent uplink subframe of the current uplink subframe, and the current uplink is determined. The first K SC-FDMA symbols are not reserved for the uplink carrier in the subframe.

The user equipment according to claim 23, wherein, if the one SC-FDMA symbol is the last one of the SC-FDMA symbols in the current uplink subframe, the first determining module is further configured to:

Determining that the one SC-FDMA symbol is reserved in one uplink subframe only for an uplink carrier other than the uplink carrier having the largest uplink, or determining that the uplink carrier having the largest uplink TA does not need to be in one uplink subframe Reserve SC-FDMA symbols; and/or,

For an uplink carrier, if the uplink TA is greater than the other uplink carriers of the uplink carrier, the uplink information is not transmitted on the first K SC-FDMA symbols in the next adjacent uplink subframe of the current uplink subframe, and the current uplink is determined. The last K SC-FDMA symbols are not reserved for the uplink carrier in the frame.

The user equipment according to any one of claims 21 to 25, wherein the transmission module is specifically configured to: for PUCCH transmission, use one of the uplink subframes except the K SC-FDMA symbols The other SC-FDMA symbols for transmitting uplink information perform the time-domain orthogonal spreading transmission format to transmit the uplink information; or for PUSCH transmission, the use is based on one of the uplink subframes except the K SC-FDMA Other SC-FDMA symbols for transmitting uplink information other than symbols perform rate matching to transmit the uplink information.

The user equipment according to claim 26, wherein, if K=l, and the one SC-FDMA symbol is the last SC-FDMA symbol in the current uplink subframe, the transmission module further uses In:

For PUCCH transmission, use the shortened PUCCH format to transmit the uplink information; or

For PUSCH transmission, the uplink information is transmitted based on the last SC-FDMA symbol reservation for SRS transmission rate matching.

The user equipment according to any one of claims 21-25, wherein if all or part of the SC-FDMA symbols in the current uplink subframe overlap with the PRACH continuously transmitted in the at least one uplink subframe, The first determining module is further used to:

Determining that no uplink information is transmitted in the current uplink subframe on the uplink carrier except the uplink carrier where the PRACH is located; or

For an uplink carrier other than the uplink carrier where the PRACH is located, if the uplink channel/signal after the K SC-FDMA symbols are reserved on the uplink carrier in the current uplink subframe is still on all or part of the SC-FDMA symbol And overlapping with the PRACH, determining that the uplink carrier does not transmit any uplink information in the current uplink subframe; or

The power of the uplink channel/signal in the current uplink subframe is controlled according to the transmit power of the PRACH, and the uplink channel/signal in the current uplink subframe is transmitted according to the power of the power control;

The user equipment according to any one of claims 21 to 25, wherein the first determining module is further used for:

If there is an SRS transmission in the last SC-FDMA symbol in the current uplink subframe or the current uplink subframe is an SRS Transmitting a subframe and transmitting the last SC-FDMA symbol in the uplink subframe, and determining that the uplink carrier other than the uplink carrier having the largest uplink TA is further reserved after the uplink channel in the current uplink subframe is 2 SC- FDMA symbols do not transmit uplink information;

If there is an SRS transmission in the first SC-FDMA symbol in the current uplink subframe or the first uplink subframe is an SRS transmission subframe and the first SC-FDMA symbol transmission of the SRS in one uplink subframe, it is determined that there is a minimum uplink The uplink carrier other than the uplink carrier of the TA further reserves the first two SC-FDMA symbols in the uplink channel in the current uplink subframe, and does not transmit uplink information;

The uplink channel includes at least one of PUCCH, PUSCH, and PRACH.

The user equipment according to any one of claims 21-25, wherein the transmission module is further used for:

Only SRSs of uplink carriers having the same uplink TA are transmitted in the same uplink subframe.

31. A network side device that receives uplink information, where the network side device includes:

The network side device according to claim 31, wherein the second determining module is further configured to: configure the K SC-FDMA symbols for the user equipment by using high layer signaling or PDCCH signaling; Or notifying the K SC-FDMA symbols in a manner agreed in advance with the user equipment; or

Notifying, by the high layer signaling or the PDCCH signaling, the K SC-FDMA symbols to the user equipment, and configuring, by using a specific bit field in the PDCCH signaling, whether the user equipment reserves the K in the current uplink subframe. SC-FDMA symbols, where the PDCCH is a PDCCH in a downlink subframe corresponding to ACK/NACK feedback in a current uplink subframe, and/or a PDCCH corresponding to a PUSCH in a current uplink subframe;

The high layer signaling is RRC signaling or MAC signaling.

The network side device according to claim 31, wherein the second determining module determines that the K SC-FDMA symbols are the first K SC-FDMA symbols in the current uplink subframe; or

The second determining module determines that the K SC-FDMA symbols are the last K SC-FDMA symbols in the current uplink subframe; or

The second determining module determines that the K SC-FDMA symbols are the first K1 SC-FDMA symbols and the last K2 SC-FDMA symbols in the current uplink subframe, where K1+K2=K; or

The second determining module determines a last SC-FDMA symbol transmission of the SRS in the current uplink subframe, and the K SC-FDMA symbols are the first K SC-FDMA symbols in the current uplink subframe; or

The second determining module determines a first SC-FDMA symbol transmission of the SRS in the current uplink subframe, and the The K SC-FDMA symbols are the last K SC-FDMA symbols in the current uplink subframe.

The network side device according to claim 33, wherein, if the K SC-FDMA symbols are the first K SC-FDMA symbols in the current uplink subframe, the second determining module is specifically configured to: :

For an uplink carrier, if the uplink TA is smaller than the other uplink carriers of the uplink carrier, the uplink information is not transmitted on the last K SC-FDMA symbols in the previous adjacent uplink subframe of the current uplink subframe, and the current uplink is determined. The first K SC-FDMA symbols are not reserved for the uplink carrier in the frame.

The network side device according to claim 33, wherein, if the K SC-FDMA symbols are the last K SC-FDMA symbols in the current uplink subframe, the second determining module is specifically configured to:

Determining to reserve the K SC-FDMA symbols in an uplink subframe only for an uplink carrier other than the uplink carrier having the largest uplink TA, or determining that the uplink carrier with the largest uplink TA does not need to be in one uplink subframe Reserve SC-FDMA symbols; and/or,

The network side device according to any one of claims 31 to 35, wherein the receiving module is specifically configured to:

For PUCCH transmission, receiving uplink information by using a transmission format of time domain orthogonal despreading based on SC-FDMA symbols for transmitting uplink information except for the K SC-FDMA symbols in one uplink subframe; Or for PUSCH transmission, the uplink information is received by de-rate matching based on SC-FDMA symbols for transmitting uplink information except for the K SC-FDMA symbols in one uplink subframe.

The network side device according to claim 36, wherein, if Κ=1, and the one of the SC-FDMA symbols is the last SC-FDMA symbol in the current uplink subframe, the receiving module further Used for:

For PUCCH transmission, use the shortened PUCCH format to receive uplink information; or

For PUSCH transmission, the last SC-FDMA symbol reservation is used to transmit the SRS for de-rate matching to receive uplink information.

The network side device according to any one of claims 31 to 35, wherein if the uplink channel/signal in the current uplink subframe is continuously transmitted in all or part of the SC-FDMA symbol and in at least one uplink subframe There is overlap in the PRACH, and the second determining module is further used to:

Determining that no uplink information is transmitted in the current uplink subframe on the uplink carrier except the uplink carrier where the PRACH is located; or For an uplink carrier other than the uplink carrier where the PRACH is located, if the uplink channel/signal after the K SC-FDMA symbols are reserved on the uplink carrier in the current uplink subframe is still on all or part of the SC-FDMA symbol And overlapping with the PRACH, determining that the uplink carrier does not receive any uplink data in the current uplink subframe; or

Determining that each uplink carrier in the current uplink subframe receives uplink information;

The network side device according to any one of claims 31 to 35, wherein the second determining module is further used for:

If there is an SRS transmission in the last SC-FDMA symbol in the current uplink subframe or the current uplink subframe is an SRS transmission subframe and the SRS is transmitted in the last SC-FDMA symbol in one uplink subframe, it is determined that in addition to having the largest uplink TA The uplink carrier other than the uplink carrier is further reserved after the uplink channel in the current uplink subframe is further reserved. The uplink information is not transmitted by the two SC-FDMA symbols; or

The uplink channel includes at least one of PUCCH, PUSCH, and PRACH.

The network side device according to any one of claims 31 to 35, wherein the receiving module is further configured to:

Only SRSs of uplink carriers having the same uplink TA are received in the same uplink subframe.

41. A system for transmitting uplink information, characterized in that the system comprises: