WO2012155519A1

WO2012155519A1 - Method and device for sending uplink channel or signal

Info

Publication number: WO2012155519A1
Application number: PCT/CN2011/084986
Authority: WO
Inventors: 任璐; 戴博; 林志嵘; 夏树强
Original assignee: 中兴通讯股份有限公司
Priority date: 2011-10-28
Filing date: 2011-12-30
Publication date: 2012-11-22
Also published as: CN102510577A; CN102510577B

Abstract

A method and device for sending uplink channel or signalcomprises: aim at the situation that random access channel PRACH on SCell and multiple uplink channels or signals PUCCH/PUSCH/SRS on other Cells are sent simultaneously, take sending uplink channel or signal into consideration, e.g. under the circumstance that the type of random access process is noncompetitive, unless the channel carried by component cell other than the one who carries the PRACH comprises the channel which carries UCI, every component cell of carrier aggregation transmits PRACH channel and the said channel which carries UCI only. The valid access of PRACH channel on SCell can be ensured, meanwhile valid transmission of multiple uplink channels and signals on other Cells can be ensured as much as possible, and then an effective solution of sending multiple uplink channels or signals simultaneously can be provided.

Description

Method and device for performing uplink channel or signal transmission

Technical field

The present invention relates to the field of communications, and more particularly to a system using carrier aggregation technology.

A method and apparatus for performing uplink channel or signal transmission.

Background technique

The uplink physical channels of the LTE (Long Term Evolution) system include a Physical Random Access Channel (PRACH), a Physical Uplink Shared Channel (PUSCH), and a Physical Uplink Shared Channel (PUCCH, Physical). Uplink Control Channel ). The role of the PRACH channel is mainly to achieve uplink synchronization and cell handover. LTE uplink DFT extended OFDM (DFT-S-OFDMA, DFT-Spread OFDM) technology, and reference signals and data are multiplexed by time division multiplexing (TDM). The uplink reference signal is divided into a Demodulation Reference Signal (DMRS) and a Sounding Reference Signal (SRS). The main function of the SRS is to measure the uplink channel, so that the eNB can perform frequency selective scheduling. A "wideband" reference signal.

In the LTE system, because different user equipments (UEs, User Equipments) are located at different locations from the base station (eNB), the time for multiple UE signals to arrive at the eNB is different. The actual system is based on the time of the eNB. Therefore, it is necessary to estimate the delay of different UEs arriving at the base station, and ensure that signals of different UEs are received by the eNB at the same time. The manner in which the UE uses the PRACH channel to transmit a preamble can be used to measure the delay of different UEs to the base station, and implement uplink synchronization. At the same time, in the process of cell handover, the PRACH channel synchronizes the target base station by transmitting a preamble sequence, and implements fast handover between cells. The random access process between the user and the cell is divided into two types: a competitive mode and a non-competitive mode. The random access process based on the contention method requires collision processing, and the random access process based on the non-competitive mode is not required.

In order to meet the requirements of the ITU-Advanced (International Telecommunication Union-Advanced), the LTE-A (Long Term Evolution Advanced) system needs to support a larger system band. Wide (up to 100MHz) and requires backward compatibility with existing LTE standards. Based on the existing LTE system, the bandwidth of the LTE system can be combined to obtain a larger bandwidth. This technology is called Carrier Aggregation (CA) technology, which can improve the spectrum of the IMT-Advance system. Utilization and mitigation of spectrum resources are scarce, thereby optimizing the utilization of spectrum resources.

In a system in which carrier aggregation is introduced, a carrier to be aggregated is called a component carrier (CC,

Component Carrier ) , also known as a cell ( Cell ). At the same time, the concept of the primary component carrier/primary cell (PCC/PCell, Primary Component Carrier/Cell) and the secondary component carrier/sell (SCC/SCell, Secondary Component Carrier/Cell) is also proposed. There is at least one primary component carrier and a secondary component carrier, wherein the primary component carrier is always active.

Since the LTE-A system introduces the concept of carrier aggregation, there are multiple uplink channels that can be simultaneously transmitted. Especially if other cells have been synchronized, if the SCell is allowed to do the random access procedure, the PRACH needs to be sent on the SCell. . At this point, there is a possibility that the PRACH on the SCell and the uplink channel and signal on the other cell are simultaneously transmitted. However, there is currently no technical solution for simultaneous transmission of multiple uplink channels or signals on the PRACH channel on the SCell and other component carriers.

Summary of the invention

The technical problem to be solved by the present invention is to provide a method and device for performing uplink channel or signal transmission, and providing a solution for simultaneously transmitting multiple uplink channels or signals.

In order to solve the above technical problems, the following technical solutions are provided:

A method for performing an uplink channel or signaling, including:

There is a random access channel to be transmitted on the secondary component cell, and one or more channels or signals to be transmitted exist on other component cells, and only physical randomness is transmitted when the type of the random access procedure is non-contention mode. Access Channel (PRACH).

The method further includes: when each component cell of the carrier aggregation includes a channel carrying uplink control information (UCI) in a channel carried by another component cell other than the component cell carrying the PRACH, in addition to transmitting the PRACH channel, Transmitting the channel carrying the UCI and transmitting only the PRACH channel and the channel carrying the UCI. The method further includes: further transmitting a channel or signal on another component cell other than the component cell for carrying the PRACH channel, and transmitting only the PRACH channel and a component cell other than the component cell for carrying the PRACH channel A channel or signal on a component cell.

The method further includes: when the high layer signaling is configured to allow the PRACH channel on the secondary component cell to transmit simultaneously with one or more channels on the other component cells, in addition to transmitting the PRACH channel, transmitting the channel carrying the UCI or For carrying a channel or signal on another component cell other than the PRACH component cell, and transmitting only the PRACH channel and the channel carrying the UCI, or transmitting only the PRACH channel and another component other than the cell for carrying the PRACH component a channel or signal on the cell;

When the higher layer signaling is configured to not allow the PRACH channel on the secondary component cell to transmit simultaneously with one or more channels on other component cells, only the PRACH channel is transmitted.

The other one of the component cells other than the component cell for carrying the PRACH channel refers to the highest priority cell among the component cells other than the component cell for carrying the PRACH channel.

The method further includes: arranging the component cells from high to low according to priority, and the order of the arrangement is: a primary component cell, a component cell of a channel carrying a UCI, and component cells of a component cell index sorted from low to high;

Wherein, when only the PRACH channel and the channel or signal on another quantum cell other than the PRACH component cell are transmitted, the UCI is any one of the following information or any combination of the following:

Confirmation / non-confirmation ( ACK / NACK ) ;

Channel State Information (CSI).

The UCI-bearing channel is a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH), where the UCI is in the following information, when the channel of the UCI is transmitted. Any one or any combination of each other:

ACK/NACK information;

Scheduling Request (SR) information.

A method for performing uplink channel or signal transmission, including: there is a to-be-sent on a secondary component cell Random access channel, while there are one or more channels or signals to be transmitted on other component cells, and in the case that the type of the random access procedure is a contention mode, the following operations are performed:

Only transmit a physical random access channel (PRACH); or,

Each component cell of the carrier aggregation transmits only channels other than the PRACH channel when the channel carried by other component cells other than the component cell carrying the PRACH channel includes a channel carrying uplink control information (UCI).

The method also includes:

When the high layer signaling is configured to allow the PRACH channel on the secondary component cell to transmit simultaneously with one or more channels on other component cells, only the channels other than the PRACH channel are transmitted; or only the PRACH channel is transmitted;

When higher layer signaling is configured to not allow simultaneous transmission of a PRACH channel on a secondary component cell and one or more channels on other component cells, only the PRACH channel is transmitted.

Wherein, when the channels other than the PRACH channel are transmitted, the multiplexing method specified in the Rel-10 version of the LTE protocol is used.

A device for performing uplink channel or signal transmission, where the device includes an uplink channel sending module, where:

The uplink channel sending module is configured to: perform uplink channel or signal transmission according to any one of the foregoing methods.

A device for performing uplink channel or signal transmission, the device comprising a channel condition confirmation module and a channel transmission module, wherein:

The channel situation confirmation module is configured to: determine that the channel condition is that there is a random access channel to be sent on the secondary component cell, and that one or more channels or signals to be sent exist on other component cells, and in the random access process The type is a non-contention mode; or, the channel condition is determined to be that there is a random access channel to be transmitted on the secondary component cell, and one or more channels or signals to be transmitted exist on other component cells, and in the random access process The channel transmission module is configured to: the channel condition confirmation module determines that the channel condition is that the secondary component cell has a random access channel to be sent, and the other component cells have a to-be-transmitted One or more channels or signals, and when the type of random access procedure is non-competitive, Performing an uplink channel or signal transmission according to a corresponding method; determining, in the channel condition confirmation module, that the channel condition is that there is a random access channel to be sent on the secondary component cell, and that one or more channels to be sent exist on other component cells or The signal, and in the case where the type of the random access procedure is the contention mode, the uplink channel or signal transmission is performed according to the corresponding method.

In the case that the PRACH on the SCell is simultaneously transmitted with multiple uplink channels or signal PUCCH/PUSCH/SRSs on other cells, the uplink channel or signal is selected according to the random access type, so that the PRACH channel on the SCell can be effectively guaranteed. Access, while maximizing the effective transmission of multiple uplink channels and signals on other cells, providing an effective solution for multiple uplink channels or simultaneous transmission of signals. BRIEF abstract

1-1 is a schematic diagram of an uplink channel or a signal transmission method according to Embodiment 1-1 of the present invention; and FIG. 1-2 is a schematic diagram of an uplink channel or a signal transmission method according to Embodiment 1-2 of the present invention; 2 is a schematic diagram of an uplink channel or a signal transmission method according to Embodiment 1-3 of the present invention; FIG. 2 is a schematic diagram of an uplink channel or a signal transmission method according to Embodiment 2 of the present invention;

3-1 is a schematic diagram of an uplink channel or a signal transmission method according to Embodiment 3-1 of the present invention; and FIG. 3-2 is a schematic diagram of an uplink channel or a signal transmission method according to Embodiment 3-2 of the present invention; FIG. 4-1 is a schematic diagram of an uplink channel or a signal transmission method according to Embodiment 3-1 of the present invention; FIG. 4-2 is a schematic diagram of an uplink channel or a signal transmission method according to Embodiment 4-1 of the present invention; 2 is a schematic diagram of an uplink channel or signal transmission method; FIG. 4-3 is a schematic diagram of an uplink channel or signal transmission method according to Embodiment 4-3 of the present invention; and FIG. 5-1 is an uplink channel or signal of Embodiment 5-1 of the present invention; FIG. 5 is a schematic diagram of an uplink channel or a signal transmission method according to Embodiment 5-2 of the present invention; FIG. 6 is a schematic diagram of an uplink channel or a signal transmission method according to Embodiment 6 of the present invention;

7-1 is a schematic diagram of an uplink channel or a signal transmission method according to Embodiment 7-1 of the present invention; 7-2 is a schematic diagram of an uplink channel or signal transmission method according to Embodiment 7-2 of the present invention.

Preferred embodiment of the invention

The technical solution of the present invention is as follows: For the carrier aggregation scenario in LTE-A, there is a PRACH channel transmission on the SCell, and one or more uplink channels and signals to be sent on other cells, according to the type of the random access procedure. Determining one or more upstream channels or signals to be transmitted to ensure efficient access of the PRACH channel on the SCell while ensuring efficient transmission of multiple upstream channels and signals on other cells.

The one or more uplink channels and signals to be sent on other cells are any one or more of PUCCH/PUSCH/SRS.

The other cell refers to a cell other than the SCell corresponding to the PRACH channel in each component cell in the carrier aggregation, including the PCell, or one or more of other SCells, or one of the PCell and other SCells. Or multiple, and multiple uplink channels or signals may be carried on one Cell or on different ICs.

In addition, the types of random access procedures include non-competitive methods and competitive methods.

An embodiment of the present invention provides a method for performing an uplink channel or a signal transmission, where a secondary access cell has a random access channel to be transmitted while another component cell has one or more channels or signals to be transmitted, and In the case that the type of the random access procedure is a non-contention mode, each component cell of the carrier aggregation includes bearer uplink control information in a channel carried by other component cells other than the component cell carrying the physical random access channel (PRACH). When the channel of UCI is transmitted, only the PRACH channel and the channel carrying the UCI are transmitted.

Among them, the above method can also have the following characteristics:

Each component cell of the carrier aggregation transmits only the PRACH channel when the channel carried by other component cells other than the component cell carrying the PRACH channel does not include the channel carrying the UCI.

Among them, the above method can also have the following characteristics:

The UCI-bearing channel is a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH), where the UCI is one or a combination of the following information: acknowledgment/non-confirmation (ACK/NACK), scheduling request (SR).

The embodiment of the present invention further provides a method for performing uplink channel or signal transmission, where a secondary access cell has a random access channel to be transmitted while another component cell has one or more channels or signals to be transmitted, and In the case where the type of the random access procedure is a non-contention mode, only the physical random access channel (PRACH) is transmitted.

The embodiment of the present invention further provides a method for performing uplink channel or signal transmission, where a secondary access cell has a random access channel to be transmitted while another component cell has one or more channels or signals to be transmitted, and In the case where the type of the random access procedure is the non-contention mode, only the physical random access channel (PRACH) and the channel or signal on another component cell other than the component cell for carrying the PRACH channel are transmitted.

Among them, the above method can also have the following characteristics:

The other component cell refers to a component cell having the highest priority among the component cells other than the component cell for carrying the PRACH channel.

Among them, the above method can also have the following characteristics:

The order in which the component cells are ranked in descending order of priority is: a primary component cell, a component cell of a channel carrying uplink control information (UCI), and component cells of a component cell index sorted from low to high, wherein the UCI is One or a combination of the following information: acknowledgment/non-acknowledgement (ACK/NACK), channel state information (CSI).

The embodiment of the present invention further provides a method for performing uplink channel or signal transmission, where a secondary access cell has a random access channel to be transmitted while another component cell has one or more channels or signals to be transmitted, and In the case where the type of the random access procedure is a non-contention mode, the higher layer signaling is configured to allow the physical random access channel (PRACH) on the secondary component cell and one or more channels on other component cells to be simultaneously transmitted, Transmitting a PRACH channel and a channel carrying uplink control information (UCI), or transmitting only a PRACH channel and a channel or signal on another component cell other than the one used to carry the PRACH component cell; When the PRACH channel on the cell and one or more channels on other component cells are simultaneously transmitted, only the PRACH channel is transmitted.

An embodiment of the present invention further provides a method for performing an uplink channel or signaling, where There is a random access channel to be transmitted on the component cell, and one or more channels or signals to be transmitted exist on other component cells, and in the case that the type of the random access procedure is a contention mode, each component cell of the carrier aggregation When a channel carried by another component cell other than a component cell for carrying a physical random access channel (PRACH) includes a channel carrying uplink control information (UCI), only channels other than the PRACH channel are transmitted, where The UCI is one or a combination of the following information: acknowledgment/non-acknowledgement (ACK/NACK), scheduling request (SR).

Among them, the above method can also have the following characteristics:

When the channels other than the PRACH channel are transmitted, the multiplexing method specified in the Rel-10 version of the LTE protocol is used.

Among them, the above method can also have the following characteristics:

Each component cell of the carrier aggregation transmits only the PRACH channel when the channel carried by the other component cells other than the component cell carrying the PRACH channel does not include the channel carrying the UCI.

The embodiment of the present invention further provides a method for performing uplink channel or signal transmission, where a secondary access cell has a random access channel to be transmitted while another component cell has one or more channels or signals to be transmitted, and In the case where the type of the random access procedure is the contention mode, only the physical random access channel (PRACH) is transmitted.

The embodiment of the present invention further provides a method for performing uplink channel or signal transmission, where a secondary access cell has a random access channel to be transmitted while another component cell has one or more channels or signals to be transmitted, and In the case where the type of the random access procedure is a contention mode, the higher layer signaling is configured to allow the physical random access channel (PRACH) on the secondary component cell and one or more channels on other component cells to be simultaneously transmitted, Transmitting each channel except the PRACH channel, or transmitting only the PRACH channel; when the higher layer signaling is configured to not allow the PRACH channel on the secondary component cell to transmit simultaneously with one or more channels on other component cells, only the PRACH channel is transmitted .

Among them, the above method can also have the following characteristics:

An embodiment of the present invention further provides an apparatus for performing uplink channel or signaling, where The device includes an uplink channel sending module, and the uplink channel sending module is configured to perform uplink channel or signal transmission according to one of the foregoing methods.

The embodiment of the present invention further provides a method for performing uplink channel or signal transmission, including: having a random access channel to be sent on a secondary component cell, and having one or more channels or signals to be sent on other component cells, And in the case where the type of the random access procedure is a non-contention mode, only the physical random access channel (PRACH) is transmitted.

The method further includes: when each component cell of the carrier aggregation includes a channel carrying uplink control information (UCI) in a channel carried by another component cell other than the component cell carrying the PRACH, in addition to transmitting the PRACH channel, Transmitting the channel carrying the UCI and transmitting only the PRACH channel and the channel carrying the UCI.

The method further includes: further transmitting a channel or signal on another component cell other than the component cell for carrying the PRACH channel, and transmitting only the PRACH channel and a component cell other than the component cell for carrying the PRACH channel A channel or signal on a component cell.

Wherein only the PRACH channel is transmitted and another point is used in addition to the PRACH component cell. When the channel or signal on the cell is measured, the UCI is any one of the following information or any combination:

Confirmation / non-confirmation ( ACK / NACK ) ;

Channel State Information (CSI).

ACK/NACK information;

SR information.

The embodiment of the present invention further provides a method for performing uplink channel or signal transmission, including: a random access channel to be transmitted exists on a secondary component cell, and one or more channels or signals to be transmitted exist on other component cells, And in the case that the type of the random access procedure is the competition mode, the following operations are performed:

Only transmit a physical random access channel (PRACH); or,

The method also includes:

The embodiment of the invention further provides an apparatus for performing uplink channel or signal transmission, where the apparatus includes an uplink channel sending module, where: The uplink channel sending module is configured to: perform uplink channel or signal transmission according to any one of the foregoing methods.

The embodiment of the invention further provides a device for performing uplink channel or signal transmission, where the device includes a channel condition confirmation module and a channel transmission module, where:

The channel situation confirmation module is configured to: determine that the channel condition is that there is a random access channel to be sent on the secondary component cell, and that one or more channels or signals to be sent exist on other component cells, and in the random access process The type is a non-contention mode; or, the channel condition is determined to be that there is a random access channel to be transmitted on the secondary component cell, and one or more channels or signals to be transmitted exist on other component cells, and in the random access process The channel transmission module is configured to: the channel condition confirmation module determines that the channel condition is that the secondary component cell has a random access channel to be sent, and the other component cells have a to-be-transmitted One or more channels or signals, and in the case where the type of the random access procedure is a non-contention mode, the uplink channel or signal transmission is performed according to a corresponding method; and the channel condition confirmation module determines that the channel condition is a secondary component cell There is a random access channel to be transmitted, while other component cells There are one or more channels or signals to be transmitted, and when the type of the random access procedure is a contention mode, the uplink channel or signal is transmitted according to the corresponding method.

The specific implementation of the present invention will be further described in detail below with reference to the accompanying drawings.

Embodiment 1

There is a PRACH to be transmitted on the secondary component cell, and one or more channels or signals to be transmitted exist on other component cells, and in the case that the type of the random access procedure is a non-contention mode, each component cell of the carrier aggregation is divided. When a channel carried by another component cell other than the component cell carrying the PRACH includes a channel carrying uplink control information (UCI), only the PRACH channel and the channel carrying the UCI are transmitted.

Since the non-contention mode PRACH means that the serving cell SCell needs to be successfully accessed, it has a high priority, and the channel containing the UCI has a high priority because it contains control information. Therefore, only these two channels are transmitted. If only PRACH is transmitted, it will affect the transmission of other channels. Priority transmission with UCI The channel, because it contains feedback of channel state information, affects the scheduling of the base station. If the channel other than the UCI is transmitted at the same time, the power may be limited, and the UE needs to perform power reduction. In addition, the PRACH is in a non-contention mode, so that the foregoing method can ensure the successful PRACH access and ensure other channels. Effective transmission.

The UCI-bearing channel is a Physical Uplink Control Channel (PUCCH) or a Physical Uplink Shared Channel (PUSCH), where the UCI is one or a combination of the following information: acknowledgment/non-acknowledgement (ACK/NACK), scheduling request (SR) .

In the embodiment 1-1 shown in Figure 1-1, when there is PUCCH transmission on the PCC, there is SRS transmission on the SCC1, and the PUCCH on the PCC carries the ACK/NACK information, and the SCC2 has a non-contention based method. When the PRACH is transmitted, only the PRACH on SCC2 and the PUCCH on the PCC are transmitted, and the SRS on SCC1 is not transmitted.

In the embodiment 1-2 shown in Figure 1-2, when there is PUSCH transmission on the PCC, there is SRS transmission on the SCC1, and the PUSCH on the PCC carries the ACK/NACK information. At the same time, when there is a non-contention-based PRACH transmission on the SCC2, only the PUSCH on the PCC and the PRACH on the SCC2 are transmitted, and the SRS on the SCC1 is not transmitted.

In the embodiment 1-3 shown in Figure 1-3, when there is PUCCH transmission on the PCC, there is SRS transmission on the SCC1, and the PUCCH on the PCC does not carry ACK/NACK information, and the SCC2 has a non-contention based method. When the PRACH is transmitted, only the PRACH on SCC2 is transmitted, and the PUCCH on the PCC and the SRS on SCC1 are not transmitted.

Embodiment 2

There is a PRACH to be transmitted on the secondary component cell, and one or more channels or signals to be transmitted exist on other component cells, and only PRACH is transmitted if the type of the random access procedure is a non-contention mode.

In the embodiment 2 shown in FIG. 2, when there is PUCCH transmission on the PCC, there is an SRS on the SCC1. Transmit, and the PUCCH on the PCC carries ACK/NACK information. At the same time, when there is a non-contention-based PRACH transmission on the SCC2, only the PRACH on the SCC2 is transmitted, and the PUCCH on the PCC and the SRS on the SCC1 are not transmitted.

Embodiment 3

There is a PRACH to be transmitted on the secondary component cell, and one or more channels or signals to be transmitted exist on other component cells, and in the case that the type of the random access procedure is a non-contention mode, only the PRACH and the transmission are used. A channel or signal on another component cell other than the component cell carrying the PRACH channel.

In the embodiment 3-1, as shown in Figure 3-1, when there is PUCCH transmission on the PCC, and there is SRS transmission on the SCC1, and there is PRACH transmission on the SCC2, only the PRACH on the SCC2 and the PUCCH on the PCC are sent, Send the SRS on SCC1.

In the embodiment 3-2, as shown in Figure 3-2, when there is PUSCH transmission on SCC1, SRS transmission on SCC2, and ACK/NACK information is carried on the PUSCH, and only SCC3 is sent on SCC3, only SCC3 is sent. The PUSCH on the upper PRACH and SCC1 does not transmit the SRS on SCC2.

In the embodiment 3-3 shown in Figure 3-3, when there is SRS transmission on SCC1, PUSCH transmission on SCC2, and no ACK/NACK information is carried on the PUSCH, and only SCC3 is sent on the SCC3. The upper and the SRS on SCC1 do not transmit the PUSCH on SCC2.

Embodiment 4 There is a PRACH to be transmitted on the secondary component cell, and one or more channels or signals to be transmitted exist on other component cells, and in the case that the type of the random access procedure is a non-contention mode, the high layer signaling is configured to allow the auxiliary When the PRACH on the component cell and one or more channels on other component cells are simultaneously transmitted, only the PRACH channel and the channel carrying the UCI are transmitted, or only the PRACH channel and another component other than the cell for carrying the PRACH component are transmitted. Channel or signal on the cell; The high layer signaling is configured to transmit only the PRACH channel when the PRACH channel on the secondary component cell and the one or more channels on other component cells are not simultaneously transmitted.

As shown in Figure 4-1, when there is PUSCH transmission on SCC1, SRS2 is sent on SCC2, and ACK/NACK information is carried on the PUSCH, and PRACH is sent on SCC3. At this time, the upper layer is configured to allow the PRACH to transmit to the same channel on the other cell, and only the PRACH on the SCC3 and the PUSCH on the SCC1 are transmitted, and the SRS on the SCC2 is not transmitted.

In the embodiment 4-2 shown in Figure 4-2, when there is PUSCH transmission on the PCC, there is SRS transmission on the SCC1, and the PUSCH on the PCC carries the ACK/NACK information. At the same time, there is a PRACH transmission based on the non-contention mode on the SCC2. In this case, the upper layer configures the PRACH to transmit the same channel on the other cell, and only transmits the PUSCH on the PCC and the PRACH on the SCC2, and does not send the SRS on the SCC1.

As shown in Figure 4-3, when there is SRS transmission on SCC1, PUSCH transmission on SCC2, and no ACK/NACK information is carried on the PUSCH, and there is a non-contention-based PRACH on SCC3. send. At this time, the upper layer is configured to not allow the PRACH to transmit to the same channel on other cells, and only the PRACH on SCC3 is sent, and the SRS on SCC1 and the PUSCH on SCC2 are not transmitted.

Embodiment 5

There is a PRACH to be transmitted on the secondary component cell, and one or more channels or signals to be transmitted exist on other component cells, and in the case that the type of the random access procedure is a contention mode, each component cell of the carrier aggregation is divided. When a channel carrying a UCI is included in a channel carried by another component cell other than the component cell carrying the PRACH, only channels other than the PRACH channel are transmitted, wherein the UCI is one or a combination of the following information: Acknowledgement/non-confirmation (ACK/NACK), scheduling request (SR). When the channels other than the PRACH channel are transmitted, the multiplexing method specified in the Rel-10 version of the LTE protocol is used.

In the embodiment 5-1 shown in Figure 5-1, when there is PUCCH transmission on the PCC, there is on the SCC1.

The SRS is transmitted, and the PUCCH on the PCC carries the ACK/NACK information and is configured with a truncation structure. At the same time, the SCC2 has a PRACH transmission based on the contention mode, does not transmit the PRACH on the SCC2, and only transmits the PUCCH of the truncated structure on the PCC. SRS on SCC1.

In the embodiment 5-2 shown in Figure 5-2, when there is PUSCH transmission on the PCC, there is SRS transmission on the SCC1, and the PUSCH on the PCC does not include ACK/NACK information, and the PRACH based on the contention mode is on the SCC2. Transmit, only the PRACH on SCC2 is sent, and the PUSCH on PCC and the SRS on SCC1 are not transmitted.

Embodiment 6

There is a PRACH to be transmitted on the secondary component cell, and one or more channels or signals to be transmitted exist on other component cells, and only PRACH is transmitted if the type of the random access procedure is a contention mode.

In the embodiment 6, as shown in FIG. 6, when there is PUCCH transmission on the PCC, SRS1 is sent on the SCC1, and the PUCCH on the PCC carries the ACK/NACK information, and the SCC2 has the PRACH transmission based on the contention mode, and only sends The PRACH on SCC2 does not transmit the PUCCH on the PCC and the SRS on the SCC1.

Example 7

There is a PRACH to be transmitted on the secondary component cell, and one or more channels or signals to be transmitted exist on other component cells, and in the case that the type of the random access procedure is a contention mode, the upper layer signaling is configured to allow the auxiliary When the PRACH on the component cell and one or more channels on other component cells are simultaneously transmitted, only channels other than the PRACH channel are transmitted or only the PRACH channel is transmitted; the higher layer signaling is configured to not allow the PRACH channel on the secondary component cell And other points When one or more channels on a cell are simultaneously transmitted, only the PRACH channel is transmitted.

In the embodiment 7-1 shown in Figure 7-1, when there is PUCCH transmission on the PCC, SRS transmission is performed on the SCC1, and the PUCCH on the PCC carries the ACK/NACK information and the truncation structure is configured, and the SCC2 has Based on the PRACH transmission of the contention mode, the high-layer signaling configured at this time allows the PRACH to transmit simultaneously with the channels on other cells. Only the PUCCH on the truncated structure of the PCC and the SRS on the SCC1 are transmitted, and the PRACH on the SCC2 is not transmitted.

In the embodiment 7-2 shown in Figure 7-2, when there is PUSCH transmission on SCC1 and ACK/NACK information is carried, SRS is sent on SCC2, and there is a PRACH transmission based on the contention mode on SCC3. The high layer signaling does not allow the PRACH to transmit simultaneously with the channels on other cells, and only transmits the PRACH on SCC3, and does not transmit the PUSCH on SCC1 and the SRS on SCC2.

The device for performing uplink channel or signal transmission includes an uplink channel sending module, and the uplink channel sending module is configured to perform uplink channel or signal transmission according to the method in the foregoing embodiment.

An embodiment of the present invention further provides an apparatus for performing uplink channel or signal transmission, where the apparatus includes a channel condition confirmation module and a channel transmission module, where:

The channel situation confirmation module is configured to: determine that the channel condition is that there is a random access channel to be sent on the secondary component cell, and that one or more channels or signals to be sent exist on other component cells, and in the random access process The type is a non-contention mode; or, the channel condition is determined to be that there is a random access channel to be transmitted on the secondary component cell, and one or more channels or signals to be transmitted exist on other component cells, and in the random access process The channel transmission module is configured to: the channel condition confirmation module determines that the channel condition is that the secondary component cell has a random access channel to be sent, and the other component cells have a to-be-transmitted One or more channels or signals, and in the case where the type of the random access procedure is a non-contention mode, the uplink channel or signal transmission is performed according to a corresponding method; and the channel condition confirmation module determines that the channel condition is a secondary component cell There is a random access channel to be transmitted, while other component cells are stored. In the case of one or more channels or signals to be transmitted, and in the case where the type of the random access procedure is a contention mode, an uplink channel or signal transmission is performed according to a corresponding method.

It can be seen from the above embodiment that the method determines one or more uplink channels and signals to be sent according to the type of the random access procedure, so as to ensure effective access of the PRACH channel on the SCell, and ensure that other cells are more Efficient transmission of upstream channels and signals.

It should be noted that the features in the embodiments and the embodiments of the present application may be arbitrarily combined with each other without conflict. It is a matter of course that the invention may be embodied in various other forms and modifications without departing from the spirit and scope of the invention. One of ordinary skill in the art will appreciate that all or a portion of the above steps may be accomplished by a program instructing the associated hardware, such as a read-only memory, a magnetic disk, or an optical disk. Alternatively, all or part of the steps of the above embodiments may also be implemented using one or more integrated circuits. Correspondingly, each module/unit in the above embodiment may be implemented in the form of hardware or in the form of a software function module. The invention is not limited to any specific form of combination of hardware and software.

Industrial applicability

In the case that the PRACH on the SCell is simultaneously transmitted with multiple uplink channels or signal PUCCH/PUSCH/SRSs on other cells, the uplink channel or signal is selected according to the random access type, so that the PRACH channel on the SCell can be effectively guaranteed. Access, while maximizing the effective transmission of multiple uplink channels and signals on other cells, providing an effective solution for multiple uplink channels or simultaneous transmission of signals. Therefore, the present invention has strong industrial applicability.

Claims

Claim

1. A method for performing an uplink channel or signaling, comprising:

2. The method according to claim 1, further comprising: the channel carrying the uplink control information (UCI) in the channel carried by the component cells of the carrier aggregation other than the component cells for carrying the PRACH And transmitting, in addition to transmitting the PRACH channel, the channel carrying the UCI, and transmitting only the PRACH channel and the channel carrying the UCI.

3. The method of claim 1 further comprising: transmitting a channel or signal on another component cell other than the component cell for carrying the PRACH channel, and transmitting only the PRACH channel and using A channel or signal on another component cell other than the component cell carrying the PRACH channel.

4. The method of claim 1, further comprising: transmitting, when the higher layer signaling is configured to allow the PRACH channel on the secondary component cell to transmit simultaneously with one or more channels on other component cells, in addition to transmitting the PRACH Outside the channel, the channel carrying the UCI or the channel or signal on another component cell other than the PRACH component cell is transmitted, and only the PRACH channel and the channel carrying the UCI are transmitted, or only the PRACH channel is transmitted and used. a channel or signal on another component cell other than the PRACH component cell;

The method according to claim 3 or 4, wherein another component cell other than the component cell for carrying the PRACH channel refers to each component cell other than the component cell for carrying the PRACH channel. The highest priority component cell.

6. The method according to claim 5, the method further comprising: arranging the component cells from high to low according to priority, the order of the arrangement is: a primary component cell, a component cell of a channel carrying the UCI, a component cell index from Low to high ordered component cells;

Confirmation / non-confirmation ( ACK / NACK ) ;

Channel State Information (CSI).

The method according to claim 2 or 4, wherein: when only the PRACH channel and the UCI-bearing channel are transmitted, the UCI-bearing channel is a physical uplink control channel (PUCCH) or a physical uplink shared channel ( PUSCH ) ;

The UCI is any one of the following information or any combination of the following:

ACK/NACK information;

Scheduling Request (SR) information.

8. A method for performing uplink channel or signal transmission, comprising: a random access channel to be sent on a secondary component cell, and one or more channels or signals to be sent on other component cells, and in random access In the case where the type of the process is a competitive mode, do the following:

Only transmit a physical random access channel (PRACH); or,

9. The method of claim 8 further comprising:

10. The method of claim 8 or 9, wherein

11. A device for performing uplink channel or signal transmission, where the device includes uplink channel transmission Module, where:

The uplink channel transmitting module is configured to perform uplink channel or signal transmission according to the method of any one of claims 1 to 10.

12. A device for performing an uplink channel or signal transmission, the device comprising a channel condition confirmation module and a channel transmission module, wherein:

The channel situation confirmation module is configured to: determine that the channel condition is that there is a random access channel to be sent on the secondary component cell, and that one or more channels or signals to be sent exist on other component cells, and in the random access process The type is a non-contention mode; or, the channel condition is determined to be that there is a random access channel to be transmitted on the secondary component cell, and one or more channels or signals to be transmitted exist on other component cells, and in the random access process The channel transmission module is configured to: the channel condition confirmation module determines that the channel condition is that the secondary component cell has a random access channel to be sent, and the other component cells have a to-be-transmitted One or more channels or signals, and in the case where the type of the random access procedure is a non-contention mode, performing uplink channel or signal transmission according to the method of any one of claims 1-7; The situation confirmation module determines that the channel condition is that there is a random access message to be sent on the secondary component cell. And one or more channels or signals to be transmitted on the other component cells, and in the case where the type of the random access procedure is a contention mode, according to the method according to any one of claims 8-10 Uplink channel or signal transmission.