WO2018098823A1 - Method and device for transmitting control channel in multi-carrier system - Google Patents

Abstract

A method and device for transmitting a control channel in a multi-carrier system, used to solve the problem wherein coverage and throughput of different carriers in an inter-frequency multi-carrier scenario are not balanced. The method comprises: a transmitter using a channelization code to carry out spectrum spreading of a first control channel and at least one second control channel, wherein the first control channel is associated with a first data channel in a first carrier, and the second control channel is associated with a second data channel in a second carrier; and the transmitter transmitting the first control channel and the at least one second control channel on the first carrier.

Description

Method and device for transmitting control channel in multi-carrier system Technical field

The present application relates to the field of communications technologies, and in particular, to a method and an apparatus for transmitting a control channel in a multi-carrier system.

Background technique

The Universal Mobile Telecommunications System (UMTS) is one of the global 3G standards developed by the International Organization for Standardization's 3rd Generation Partnership Project (3GPP). The UMTS system introduces High Speed Downlink Packet Access (HSDPA) technology and High Speed Uplink Packet Access (HSUPA) in 3GPP Release-5 and Release-6 versions respectively. technology.

In order to increase the uplink/downlink peak rate, multi-carrier HSDPA technology and multi-carrier HSUPA technology are introduced in later versions. The HSDPA technology can support up to 8 carriers. For the multi-carrier HSDPA technology, each downlink physical control channel is allocated on a corresponding downlink carrier. HSUPA technology supports up to two carriers. Similarly, for the multi-carrier HSUPA technology, each uplink physical channel is respectively configured on a corresponding one of the uplink carriers, and the downlink physical channels associated with each of the uplink carriers are also respectively configured on the corresponding downlink carriers.

Different carriers in a multi-carrier system can operate in the same frequency band or in different frequency bands. In the inter-frequency multi-carrier scenario, some carriers work in the high frequency band, some carriers work in the low frequency band, the channel with high frequency has large channel loss, and the channel fading is serious, resulting in different carrier coverage and throughput imbalance. .

Summary of the invention

The present invention provides a method and a device for transmitting a control channel in a multi-carrier system, which are used to solve the problem of coverage and throughput imbalance of different carriers in an inter-frequency multi-carrier scenario.

In one aspect, a method for transmitting a control channel in a multi-carrier system is provided, where the multi-carrier system includes multiple carriers, and “multiple” refers to “two or more”, and the control channels on multiple carriers are adopted. Transmitted on one carrier, the carrier may be a carrier with better channel quality, or may be a primary carrier, which can ensure reliable transmission of the control channel, and on the other hand, can transmit power of the control channel on the original carrier to the data channel, thereby Improve the coverage and throughput of the original carrier.

In a possible design, the multi-carrier system includes a first carrier and at least one second carrier, and the transmitting end spreads the first control channel and the at least one second control channel by using a channelization code, where a first control channel is associated with a first data channel of the first carrier, the second control channel is associated with a second data channel of the second carrier, and the transmitting end is sent on the first carrier a first control channel and at least one second control channel. When the second control channel is transmitted on the second carrier, the second control channel is improved because the path loss of the second carrier is large and the channel quality is poor, resulting in low reliability of the second control channel. Reliability. Moreover, since the second control channel is not sent on the second carrier, the transmitting end can use the resource saved by the second carrier to transmit the data channel, thereby improving the coverage and throughput of the second carrier.

In a possible design, the sending end sending the first control channel and the at least one second control channel on the first carrier may be implemented by: the sending end being at the first The first control channel that is sent on the carrier carries the first identifier information, where the first identifier information is used to identify the first carrier, and on the second control channel that is sent on the first carrier, The second identifier information is carried, and the second identifier information is used to identify the second carrier. It is ensured that the receiving end receives multiple control channels on one carrier, correctly distinguishes the carrier corresponding to the control channel, and correctly decodes the data on the carrier.

In a possible design, if the first control channel is a high-speed shared control channel HS-SCCH, the transmitting end carries the first on the first control channel sent on the first carrier. The identifier information is implemented by: the sending end coding the first identification information and the first control signaling together, and performing bearer coding on the first control channel sent on the first carrier First control signaling and first identification information, wherein the first control signaling is associated with the first data channel; and if the second control channel is an HS-SCCH, the transmitting And transmitting, by the terminal, the second identifier information on the second control channel that is sent by the terminal, by using the following manner: the sending end performs the second identifier information and the second control signaling together Encoding, and carrying the encoded second control signaling and second identification information on the second control channel sent on the first carrier, where the second control signaling is in the second Data associations sent on the data channel.

In a possible design, the sending end sending the first control channel and the at least one second control channel on the first carrier may be implemented by: the sending end being at the first The third control information is carried on the first control channel that is sent by the carrier, where the third identifier information is used to identify the first control channel, and is used to indicate that the receiving end corresponds to the carrier according to the identification information of the control channel. Determining, by the third identification information, the first carrier corresponding to the first control channel; and sending, by the sending end, the fourth identifier on the second control channel sent by using the first carrier Information, the fourth identifier information is used to identify the second control channel, and is used to indicate that the receiving end determines the first part according to the correspondence between the identification information of the control channel and the carrier, and the fourth identifier information. The second carrier corresponding to the second control channel.

In one possible design, the third identification information includes a first channelization code; and the fourth identification information includes a second channelization code.

In a possible design, the total number of the first control channel and the at least one second control channel sent by the sending end on the first carrier does not exceed that of the receiving end on the first carrier. The maximum number of control channels that are monitored. The second control channel not transmitted on the first carrier is still transmitted on the original second carrier.

In a possible design, the first carrier is a downlink primary carrier, and the second carrier is a downlink secondary carrier; or the first carrier is an uplink primary carrier, and the second carrier is an uplink secondary carrier.

A second aspect provides a method for transmitting a control channel in a multi-carrier system, where the multi-carrier system includes a first carrier and at least one second carrier, and the receiving end receives the first one sent by the transmitting end on the first carrier. The control channel and the at least one second control channel despread the first control channel and the at least one second control channel. The first control channel is associated with a first data channel of the first carrier, and the second control channel is closed with a second data channel of the second carrier Union. This can improve the reliability of the second control channel.

In a possible design, after receiving the first control channel and the at least one second control channel sent by the transmitting end, the receiving end receives, according to the received first control channel, the first control channel Determining, by the identifier information, the first carrier identified by the first identifier information, and determining, according to the received second identifier information carried on the second control channel, the identifier of the second identifier information and the first identifier a second carrier corresponding to the second control channel; or, the receiving end determines, according to the received third identifier information carried on the first control channel, the first control channel that is identified by the third identifier information, according to Determining, according to the corresponding relationship between the identification information of the control channel and the carrier, the first control channel associated with the data channel of the first carrier; determining the fourth identifier according to the received fourth identifier information carried on the second control channel Determining, by the second control channel of the information identifier, a first association with a data channel of the second carrier according to the corresponding relationship between the identification information of the control channel and the carrier Control channel. This ensures that the carrier corresponding to the control channel can be correctly distinguished, and the data decoding on the carrier is correctly matched.

In a possible design, the receiving end uses the first control signaling pair carried on the first control channel after determining the first carrier according to the first identifier information or the third identifier information The data received on the first data channel is decoded; after receiving the second carrier according to the second identifier information or the fourth identifier information, the receiving end uses the bearer on the second control channel. The second control signaling decodes the data received on the second data channel.

In one possible design, the third identification information includes a first channelization code; and the fourth identification information includes a second channelization code.

In a possible design, the first carrier is a downlink primary carrier, and the second carrier is a downlink secondary carrier; or the first carrier is an uplink primary carrier, and the second carrier is an uplink secondary carrier.

The third aspect provides a method for transmitting a control channel in a multi-carrier system, where the multi-carrier system includes a first uplink carrier, at least one second uplink carrier, and a first downlink carrier, and the base station adopts different The channelization code spreads each downlink control channel of the first downlink control channel and the at least one second downlink control channel, where the first downlink control signal The channel is associated with an uplink data transmission in the first uplink carrier, the second downlink control channel is associated with an uplink data transmission of the terminal in the second uplink carrier; and the base station is in the first downlink A first downlink control channel and at least one second downlink control channel are transmitted on the carrier. When the second downlink control channel is sent on the second downlink carrier, the reliability of the second downlink control channel is low due to the large path loss of the second downlink carrier and the poor channel quality. The reliability of the transmission of the two downlink control channels. Moreover, since the second control channel is not sent on the second downlink carrier, the transmitting end can use the resource saved by the second downlink carrier to transmit the data channel, thereby improving the coverage and throughput of the second downlink carrier.

In one possible design, the channelization code adopted by the base station is notified by the upper layer.

In a possible design, the first uplink carrier is a primary carrier, the second uplink carrier is a secondary carrier, and the first downlink carrier is a secondary carrier.

In a possible design, the first downlink control channel sent on the first downlink carrier carries identifier information for identifying the first downlink control channel, and is used to indicate that the terminal uses the identifier information of the downlink control channel. Corresponding relationship between the uplink carriers to determine a first downlink control channel associated with the data transmission in the first uplink carrier; the second downlink control channel sent by the base station on the first downlink carrier, the bearer is used to identify the second control The identifier information of the channel is used to indicate that the terminal determines the second downlink control channel associated with the data transmission in the second uplink carrier according to the correspondence between the identifier information of the downlink control channel and the uplink carrier. In this way, the terminal can receive multiple downlink control channels on one uplink carrier, and distinguish which uplink channel data transmission corresponds to the downlink control channel.

In one possible design, the identification information used to identify the first control channel and the second control channel includes different channelization codes.

In a possible design, the total number of the first downlink control channel and the at least one second downlink control channel that the base station sends on the first downlink carrier does not exceed the downlink control that the terminal can monitor on the first downlink carrier. The maximum number of channels.

In a fourth aspect, an apparatus for controlling a channel in a multi-carrier system is provided, the apparatus having the function of implementing the behavior of the sender in any of the possible aspects of the first aspect and the first aspect described above. The functions may be implemented by hardware or by corresponding software implemented by hardware. The hardware or software Includes one or more modules corresponding to the above functions.

In a fifth aspect, an apparatus for controlling a channel in a multi-carrier system is provided, the apparatus having the function of implementing the behavior of the receiving end in any of the possible aspects of the second aspect and the second aspect described above. The functions may be implemented by hardware or by corresponding software implemented by hardware. The hardware or software includes one or more modules corresponding to the functions described above.

In a sixth aspect, an apparatus for controlling a channel in a multi-carrier system is provided, the apparatus having the function of implementing base station behavior in any of the possible aspects of the third aspect and the third aspect described above. The functions may be implemented by hardware or by corresponding software implemented by hardware. The hardware or software includes one or more modules corresponding to the functions described above.

A seventh aspect provides a device for controlling a channel in a multi-carrier system, the multi-carrier system comprising a first carrier and at least one second carrier, the device comprising a transceiver, a processor, a memory and a bus, a transceiver, The processor and the memory are both connected to the bus, wherein the memory stores a set of programs, the processor is configured to invoke a program stored in the memory, and when the program is executed, cause the processor to execute: adopting channelization The code spreads the first control channel and the at least one second control channel, wherein the first control channel is associated with a first data channel of the first carrier, the second control channel and the second A second data channel association in the carrier; transmitting, by the transceiver, the first control channel and the at least one second control channel on the first carrier. When the second control channel is transmitted on the second carrier, the second control channel is improved because the path loss of the second carrier is large and the channel quality is poor, resulting in low reliability of the second control channel. Reliability. Moreover, since the second control channel is not sent on the second carrier, the transmitting end can use the resource saved by the second carrier to transmit the data channel, thereby improving the coverage and throughput of the second carrier.

In a possible design, the processor is configured to: carry, by the transceiver, the first identifier information on the first control channel that is sent by the transceiver on the first carrier, where the first identifier information is used to identify the a first carrier; and, on the second control channel that is sent by the transceiver on the first carrier, carrying second identifier information, where the second identifier information is used to identify the second carrier. It is ensured that the receiving end receives multiple control channels on one carrier, correctly distinguishes the carrier corresponding to the control channel, and correctly decodes the data on the carrier.

In a possible design, if the first control channel is a high speed shared control channel HS-SCCH, the processor is configured to: encode the first identification information and the first control signaling together, and pass the Transmitting, by the transceiver, the first control signaling and the first identification information on the first control channel that is sent by the first carrier, where the first control signaling and the first data are a channel association; if the second control channel is an HS-SCCH, the processor is configured to: jointly encode the second identifier information and the second control signaling, and pass the transceiver at the first The second control channel sent on the carrier carries the encoded second control signaling and the second identification information, where the second control signaling is associated with the second data channel.

In a possible design, the processor is configured to: carry, on the first control channel that is sent by the transceiver on the first carrier, third identifier information, where the third identifier information is used to identify Determining, by the receiving end, the first carrier corresponding to the first control channel according to the correspondence between the identification information of the control channel and the carrier and the third identifier information; and And transmitting, by the transceiver, the second identifier information on the second control channel that is sent by the transceiver, where the fourth identifier information is used to identify the second control channel, and is used to indicate the receiving end. And determining, according to the correspondence between the identifier information of the control channel and the carrier, and the fourth identifier information, the second carrier corresponding to the second control channel.

In an eighth aspect, an apparatus for controlling a channel in a multi-carrier system, the multi-carrier system includes a first carrier and at least one second carrier, the apparatus comprising: a transceiver, a processor, a memory, and a bus, the transceiver The processor and the memory are all connected to the bus, wherein the memory stores a set of programs, the processor is configured to invoke a program stored in the memory, and when the program is executed, cause the processor to perform: listening Receiving, by the first carrier, a first control channel and at least one second control channel sent by the transmitting end, where the first control channel and the first data channel in the first carrier are In association, the second control channel is associated with a second one of the second carriers. This can improve the reliability of the second control channel.

In a possible design, the processor is further configured to: after the transceiver receives the first control channel and the at least one second control channel sent by the transmitting end on the first carrier, according to the received Determining, by the first identifier information carried on the first control channel, the first identifier information identifier Determining the first carrier; determining, according to the received second identifier information carried on the second control channel, the second carrier corresponding to the second control channel that is identified by the second identifier information; or Determining, according to the received third identifier information that is carried on the first control channel, the first control channel that is identified by the third identifier information, and determining, according to the correspondence between the identifier information of the control channel and the carrier, a first control channel associated with the data channel of the carrier; determining, according to the received fourth identifier information carried on the second control channel, the second control channel identified by the fourth identifier information, according to the identifier of the control channel The corresponding relationship between the information and the carrier determines a second control channel associated with the data channel of the second carrier. This ensures that the carrier corresponding to the control channel can be correctly distinguished, and the data decoding on the carrier is correctly matched.

In a possible design, the processor is further configured to: after determining the first carrier according to the first identifier information or the third identifier information, using the first bearer on the first control channel The control signaling decodes the data received on the first data channel; after determining the second carrier according to the second identifier information or the fourth identifier information, using the second control channel to carry The second control signaling decodes the data received on the second data channel.

A ninth aspect, an apparatus for controlling a channel in a multi-carrier system, where the multi-carrier system includes a first uplink carrier, at least one second uplink carrier, and a first downlink carrier, where the apparatus includes: a transceiver, a processor, a memory, and a bus, the transceiver, the processor, and the memory are all connected to the bus, wherein the memory stores a set of programs, and the processor is configured to call a program stored in the memory, when the program is executed, And causing, by the processor, to perform spreading on the first downlink control channel and the at least one second downlink control channel by using a channelization code, where the first downlink control channel and the terminal are in the first uplink carrier Uplink data transmission association, the second downlink control channel is associated with uplink data transmission of the terminal in the second uplink carrier; transmitting, on the first downlink carrier, a first downlink control channel and at least one second Downlink control channel. When the second downlink control channel is sent on the second downlink carrier, the reliability of the second downlink control channel is low due to the large path loss of the second downlink carrier and the poor channel quality. The reliability of the transmission of the two downlink control channels. Moreover, since the second control channel is not sent on the second downlink carrier, the transmitting end may use the resource saved by the second downlink carrier to transmit the data channel, thereby The coverage and throughput of the second downlink carrier are increased.

According to a tenth aspect, there is provided a communication system comprising the apparatus of the fourth aspect or the seventh aspect and the apparatus of the fifth aspect or the eighth aspect.

In an eleventh aspect, a computer storage medium is provided for storing a computer program, the computer program comprising any of the possible aspects of the first aspect, the second aspect, the third aspect, the first aspect, and the second Any of the possible designs of the aspect, the instructions of the method of any of the possible aspects of the third aspect.

The solution provided by the embodiment of the present application sends a control channel on multiple carriers through a carrier, where the carrier may be a carrier with better channel quality or a primary carrier, which can ensure reliable transmission of the control channel, and another The aspect can transmit the power saved by the control channel on the original carrier to the data channel, thereby improving the coverage and throughput of the original carrier.

DRAWINGS

1 is a schematic structural diagram of an application system in an embodiment of the present application;

2 is a schematic flowchart of a method for transmitting a control channel in a multi-carrier system according to an embodiment of the present application;

FIG. 3 is one of coding modes of a carrier ID in an embodiment of the present application;

4 is a second coding mode of a carrier ID in an embodiment of the present application;

5 is a second schematic flowchart of a method for transmitting a control channel in a multi-carrier system according to an embodiment of the present application;

6 is a structural diagram of an apparatus for controlling a channel in a multi-carrier system according to an embodiment of the present application;

7 is a second structural diagram of a device for controlling a channel in a multi-carrier system according to an embodiment of the present application;

8 is a third structural diagram of a device for controlling a channel in a multi-carrier system according to an embodiment of the present application;

9 is a fourth structural diagram of a device for controlling a channel in a multi-carrier system according to an embodiment of the present application;

10 is a fifth structural diagram of a device for controlling a channel in a multi-carrier system according to an embodiment of the present application;

FIG. 11 is a sixth structural diagram of a device for controlling a channel in a multi-carrier system according to an embodiment of the present application.

detailed description

The present invention will be further described in detail with reference to the accompanying drawings, in which FIG. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present application without departing from the inventive scope are the scope of the present application.

The embodiment of the present invention provides a method and a device for transmitting a control channel in a multi-carrier system, where a control channel on multiple carriers is transmitted through a carrier, and the carrier may be a carrier with better channel quality or a primary carrier. The reliability transmission of the control channel can be ensured, and the power saved by the control channel on the original carrier can be transmitted to the data channel, thereby improving the coverage and throughput of the original carrier.

It should be noted that, unless otherwise stated, the embodiments of the present application refer to "first", "second", etc. ordinal numbers for distinguishing multiple objects, and are not used to limit the order of multiple objects. "Multiple" as referred to in the embodiments of the present application means two or more.

The solution provided by the embodiment of the present application may be applied to the UMTS system, and may also be applied to an application scenario in which the processing and transmission of the physical layer are performed independently for each carrier in other multi-carrier systems. Among them, the channels involved in HSDPA include a High-Speed Physical Downlink Shared Channel (HS-PDSCH), a High Speed Shared Control Channel (HS-SCCH), and a High-Speed Dedicated Physical Control Channel (High Speed). Dedicated Physical Control Channel, HS-DPCCH), where HS-PDSCH and HS-SCCH are downlink physical channels; HS-DPCCH is an uplink physical channel. The base station transmits data to the terminal through the HS-PDSCH, and transmits control signaling related to the HS-PDSCH through the HS-SCCH. The terminal listens to the HS-SCCH, and if it detects the HS-SCCH, determines whether it is the local terminal according to the terminal identifier (ie, the UE ID) carried in the HS-SCCH, and if so, uses the control signaling carried on the HS-SCCH to the HS-PDSCH. Demodulation decoding is performed. The terminal generates an Acknowledgement (ACK) or a Non-Acknowledgement (NACK) according to whether the HS-PDSCH decoding is correct or not. Or Discontinuous Transmission (DTX) information. The terminal also measures the downlink channel status, generates channel quality indicator (CQI) information, and carries the ACK/NACK/DTX information and the CQI information on the HS-DPCCH to the base station, and the base station uses the information fed back by the terminal as the service scheduling. Basis.

The channels involved in HSUPA include an Enhanced Dedicated Physical Data Channel (E-DPDCH) and an Enhanced Dedicated Physical Control Channel (E-DPCCH) and a downlink E-DCH hybrid ARQ. E-DCH hybrid ARQ indicator channel (E-HICH), E-DCH absolute grant channel (E-AGCH) and E-DCH relative grant channel (E-DCH relative grant channel, E) -RGCH). E-DPDCH is a data channel, E-DPCCH is used to carry E-DPDCH-related control signaling, and E-AGCH is used to carry an absolute dedicated information of an enhanced dedicated channel (E-DCH), which can be Multiple terminals are shared by means of time division multiplexing. The E-RGCH carries the relative grant information of the E-DCH. The E-HICH carries the ACK/NACK information of the E-DCH.

In summary, the downlink physical control channel has HS-SCCH, E-HICH, E-RGCH, E-AGCH, and these control channels are independently transmitted on each carrier. The uplink physical control channel has HS-DPCCH and E-DPCCH, wherein the HS-DPCCH is only configured on the primary carrier, and the E-DPCCH is configured on each carrier.

In the following description, the downlink physical control channel is simply referred to as a downlink control channel, and the uplink physical control channel is simply referred to as an uplink control channel.

The embodiment of the present application is applied to a multi-carrier system, where the multi-carrier system includes a first carrier and at least one second carrier. Optionally, the first carrier is a downlink primary carrier, and the second carrier is a downlink secondary carrier; or, the first carrier The uplink primary carrier is the uplink secondary carrier. Generally speaking, in an actual application, in an inter-frequency multi-carrier scenario, the primary carrier operates in a frequency band with a low frequency, and the secondary carrier operates in a frequency band with a high frequency. For example, a multi-carrier system includes one primary carrier and one secondary carrier, the primary carrier operates in a frequency band of 900 MHz, and the secondary carrier operates in a frequency band of 2.1 GHz.

The application scenarios described in the embodiments of the present application are for the purpose of more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute a limitation of the technical solutions provided by the embodiments of the present application. The technical solutions provided by the embodiments of the present application are applicable to similar technical problems as the network architecture evolves and new service scenarios arise.

As shown in FIG. 1 , the application system architecture of the embodiment of the present application includes a base station 101, a terminal 102, and multiple carriers 103. The base station 101 may include various forms of macro base stations, micro base stations, relay stations, access points, or RRUs. In a different system, the name of the device having the function of the base station may be different, and the terminal 102 communicates with the base station 101 and accepts the scheduling by the base station 101.

The method and device for transmitting a control channel in a multi-carrier system provided by an embodiment of the present application are described in detail below with reference to the accompanying drawings.

It should be noted that, in the description of the following embodiments, the transmitting end is the base station 101 or the terminal 102, and the receiving end may also be the base station 101 or the terminal 102. When the transmitting end is the base station 101, the receiving end is the terminal 102; when the transmitting end is the terminal 102, the receiving end is the base station 101.

As shown in FIG. 2, in the embodiment of the present application, a specific process of a method for transmitting a control channel in a multi-carrier system is as follows.

Step 201: The transmitting end spreads the first control channel and the at least one second control channel by using a channelization code.

The control channel set includes a first control channel and at least one second control channel, where the first control channel is associated with the first data channel of the first carrier, that is, the first control channel carries the first information related to the first data channel. Control signaling; a second control channel is associated with a second one of the second carriers, i.e., a second control channel carries second control signaling associated with the second data channel.

Step 202: The transmitting end sends the first control channel and the at least one second control channel on the first carrier, and the receiving end receives the first control channel and the at least one second control channel sent by the sending end on the first carrier.

Step 203: The receiving end despreads the first control channel and the at least one second control channel.

For example, the first carrier is the primary carrier and the second carrier is the secondary carrier. Each second control channel is transmitted through the primary carrier. That is, the transmitting end transmits the first control channel on the primary carrier and the second control channel on the at least one secondary carrier on the primary carrier. Avoiding when the second control channel is on the secondary carrier When transmitting, because the path loss of the secondary carrier is large, and the channel quality is poor, the reliability of the second control channel is low, the reliability of the second control channel is improved, and the secondary carrier is not sent. The second control channel, the transmitting end can use the power saved by the secondary carrier to transmit the data channel, thereby improving the coverage and throughput of the secondary carrier.

In the method shown in FIG. 2, the first control channel and the second control channel may both be HS-SCCHs in the downlink control channel, or both are E-DPCCHs in the uplink control channel.

When the first control channel and the second control channel are both HS-SCCHs in the downlink control channel, the transmitting end is a base station, and the receiving end is a terminal. It is assumed that the first carrier is the downlink primary carrier and the second carrier is the downlink secondary carrier. The base station transmits data through the HS-PDCSH on the primary carrier and each secondary carrier, and sends control signaling over multiple HS-SCCH channels on the primary carrier, and the terminal receives the HS-SCCH and the HS-PDSCH, and carries the HS-SCCH. Control signaling demodulates the HS-PDSCH. In addition, in step 201, the channel code set of the base station and the UE HS-SCCH needs to be notified by higher layer signaling.

When the first control channel and the second control channel are both E-DPCCHs in the uplink control channel, the transmitting end is a terminal, and the receiving end is a base station. It is assumed that the first carrier is the uplink primary carrier and the second carrier is the uplink secondary carrier. The terminal sends control signaling through multiple E-DPCCHs on the primary carrier, and transmits data through the E-DPDCH on the primary carrier and each secondary carrier. The base station receives the E-DPCCH and the E-DPDCH, and uses the content pair carried by the E-DPCCH. The data received on the E-DPDCH is decoded. In step 201, each E-DPCCH employs a fixed channelization code.

Since the transmitting end sends multiple control channels on the same carrier, the receiving end receives multiple control channels on one carrier, and needs to distinguish the carrier corresponding to the control channel, so as to correctly decode the data on the carrier.

In the embodiment of the present application, in a possible implementation manner, if the first control channel and the second control channel are both HS-SCCH, the sending end carries the first identification information on the first control channel sent by the sending end on the first carrier. The first identifier information is used to identify the first carrier;

The second control channel that is sent by the sending end on the first carrier carries the second identifier information, and the second identifier information is used to identify the second carrier.

The first identification information and the second identification information can be understood as a carrier ID. For example, the first carrier is the primary carrier Wave, the first identification information is the primary carrier ID, and the second identification information is the secondary carrier ID.

If the system supports dual carriers, including one primary carrier and one secondary carrier, the HS-SCCH can carry the carrier ID by 1 bit, for example, 1 for the primary carrier ID and 0 for the secondary carrier ID.

If the number of carriers supported by the system is 4, including one primary carrier and three secondary carriers, the HS-SCCH can carry the carrier ID by 2 bits. For example, 10 represents the primary carrier ID, and 11, 00, and 01 respectively represent three. Secondary carrier ID.

If the number of carriers supported by the system is 8, including one primary carrier and seven secondary carriers, in this case, the maximum number of HS-SCCHs that the receiving end can hear on one carrier is taken into account. For example, if the receiving end can detect up to 4 HS-SCCHs on the primary carrier, the transmitting end sends a first control channel and three second control channels on the primary carrier, and the carrier ID can still be indicated by 2 bits. Use 10 for the primary carrier ID and 11, 00, and 01 for the three secondary carrier IDs. The remaining four second control channels are still transmitted on the corresponding secondary carrier.

The first identifier information or the second identifier information is carried in the HS-SCCH, and the content carried by the HS-SCCH needs to be encoded. The specific encoding manner of the first identifier information and the second identifier information may be: The first control signaling is jointly coded, and carries the first control signaling and the first identification information that are encoded on the first control channel that is sent on the first carrier, where the first control signaling is associated with the first data channel. ;

The transmitting end encodes the second identification information and the second control signaling together, and carries the encoded second control signaling and the second identification information on the second control channel sent by the first carrier, where the second control The signaling is associated with the second data channel.

Specifically, in the HSDPA technology, the foregoing control channel is an HS-SCCH, and the content duration of each HS-SCCH is three time slots, which are divided into two parts, and the first part (ie, the first time slot) carries time-sensitive Information, the second part (ie, the 2nd and 3rd time slots) carries information that is not time sensitive.

Taking HS-SCCH type 1 as an example, the first part includes channel code set information (ie, Channelization-code-set information) Xccs and modulation scheme information Xms used by the HS-DSCH, and the second part includes transport block information ( Transport-block size information) Xtbs, hybrid automatic repeat request (HARQ) information (Hybrid-ARQ process) Information) Xhap, RV information (Redundancy and constellation version) Xrv, New data indicator Xnd and terminal identification information (UE ID) Xue.

As shown in FIG. 3, the carrier ID may be encoded in the first part, and the carrier ID, the channel code set information, and the modulation mode information are encoded together, the rate matching, and the UE ID are masked. Physical channel mapping is performed along with the second part.

Alternatively, as shown in FIG. 4, the carrier ID may be encoded by placing the carrier ID in the second part, and adding the carrier ID and other information of the second part to add a Cyclic Redundancy Check (CRC). The process of encoding, rate matching, and finally physical channel mapping together with the first part, wherein the UE ID is masked in the CRC.

Both r, s, and b in Figures 3 and 4 are used for parameters of data channel rate matching.

In another possible implementation manner, the first control channel and the second control channel may both be HS-SCCHs in the downlink control channel, or both are E-DPCCHs in the uplink control channel, and the transmitting end is on the first carrier. The first control channel that is sent carries the third identifier information, where the third identifier information is used to identify the first control channel, and is used to indicate that the receiving end determines, according to the correspondence between the identifier information of the control channel and the carrier, and the third identifier information. a first control channel associated with a data channel of the first carrier;

The transmitting end carries the fourth identifier information on the second control channel that is sent by the sending end, and the fourth identifier information is used to identify the second control channel, and is used to indicate that the receiving end is corresponding to the carrier according to the identification information of the control channel. The fourth identification information determines a second control channel associated with the data channel of the second carrier.

Optionally, the third identifier information includes a first channelization code, and the fourth identifier information includes a second channelization code.

For example, the transmitting end distinguishes the carrier corresponding to the HS-SCCH by using different channelization codes. Since the content carried by the HS-SCCH is transmitted after encoding, spreading, and modulation, the HS-SCCH spreading uses a fixed spreading factor SF128. Therefore, the transmitting end can divide the HS-SCCH code channel, and the division is different. The channel code region corresponds to a different carrier.

For example, 128 channelization codes are respectively characterized by sequence numbers 1, 2, ..., 128. If the system supports dual carriers, 1 to 64 corresponding primary carriers and 65 to 128 corresponding secondary carriers can be used. Receiving end according to receipt The channelization code of the HS-SCCH determines which carrier the control channel of the HS-SCCH belongs to.

The correspondence between the channelization code and the carrier may be a high-level notification or a predefined one, which is not limited in this application.

For the E-DPCCH, since all E-DPCCHs in the prior art use the fixed channelization code Cch, 256, 1, if multiple E-DPCCHs are transmitted on the same carrier, the base station cannot distinguish each E-DPCCH. Therefore, in this case, it is necessary to predefine a different channelization code for each E-DPCCH, such as Cch, 256, 1, Cch, 256, 2, .

After receiving the first control channel and the at least one second control channel, it is necessary to determine which carrier each control channel corresponds to.

Specifically, the receiving end determines, according to the first identifier information carried on the first control channel, the first carrier identified by the first identifier information, and the receiving end, according to the second identifier information carried on the received second control channel, Determining, by the second identification information, the second carrier corresponding to the second control channel; or determining, by the receiving end, the first control channel that is identified by the third identifier information according to the third identifier information that is received on the received first control channel, Determining, according to the correspondence between the identification information of the control channel and the carrier, the first carrier corresponding to the first control channel; and determining, by the receiving end, the second identifier of the fourth identifier information according to the fourth identifier information carried on the received second control channel The control channel determines the second carrier corresponding to the second control channel according to the correspondence between the identification information of the control channel and the carrier.

After receiving the first carrier according to the first identifier information or the third identifier information, the receiving end decodes the data received on the first data channel by using the first control signaling carried on the first control channel; After the second identification information or the fourth identification information determines the second carrier, the data received on the second data channel is decoded by using the second control signaling carried on the second control channel.

How the transmitting end decides which first control channel and which second control channel need to be transmitted on the first carrier depends on some factors. For example, the second control channel sent by the transmitting end on the first carrier needs the second carrier corresponding to the second control channel to be in an active state.

In addition, optionally, the total number of the first control channel and the at least one second control channel that are sent by the transmitting end on the first carrier does not exceed the maximum of the control channel that the receiving end can monitor on the first carrier. large quantity.

Optionally, the transmitting end may also adopt an existing technology to send a corresponding control channel on each carrier. The method for transmitting the control channel provided by the embodiment of the present application is required to be notified to the transmitting end by the upper layer through signaling.

Based on the same inventive concept, the embodiment of the present application further provides a method for transmitting a control channel in another multi-carrier system, where the multi-carrier system includes a first uplink carrier, at least one second uplink carrier, and a first downlink carrier.

For example, the first uplink carrier may be an uplink primary carrier, the second uplink carrier may be an uplink secondary carrier, and the first downlink carrier may be a downlink primary carrier.

It should be noted that the downlink primary carrier mentioned in the embodiment of the present application refers to a carrier used by a base station to transmit to a terminal in a serving HS-DSCH cell (serving HS-DSCH cell); the secondary secondary carrier refers to a secondary serving HS-DSCH cell. In the secondary serving HS-DSCH cell, the base station transmits the used carrier to the terminal. The uplink primary carrier refers to the carrier used by the serving E-DCH cell associated with the serving HS-DSCH cell; the uplink secondary carrier refers to the carrier used by the serving E-DCH cell associated with the secondary serving HS-DSCH cell. This description applies to the full text.

As shown in FIG. 5, the specific flow of the method is as follows.

Step 501: The base station performs spreading on the first downlink control channel and the at least one second downlink control channel by using different channelization codes.

The first downlink control channel is associated with the uplink data transmission of the terminal in the first uplink carrier, and the second downlink control channel is associated with the uplink data transmission of the terminal in the second uplink carrier.

Step 502: The base station sends the first downlink control channel and the at least one second downlink control channel on the first downlink carrier.

Optionally, the first uplink carrier is a primary carrier, the second uplink carrier is a secondary carrier, and the first downlink carrier is a secondary carrier.

The base station transmits the first downlink control channel and the at least one second downlink control channel on the first downlink carrier. When the second downlink control channel is sent on the second downlink carrier, the second downlink control channel may be used because the path loss of the second downlink carrier is large and the channel quality is poor. The low reliability problem improves the reliability of the second downlink control channel transmission, and the base station can also use the power saved by the second downlink carrier to transmit the data channel, because the second downlink control channel is not sent on the second downlink carrier. Thereby improving the coverage and throughput of the second downlink carrier.

In the method shown in FIG. 5, if both the first downlink control channel and the second downlink control channel are E-HICH, the terminal transmits uplink data to the base station through the data channel on each uplink carrier, and the base station is in the first downlink. The carrier feeds back to the terminal through multiple E-HICHs whether the respective data channels are correctly received.

If the first downlink control channel and the second downlink control channel are both E-RGCH, the base station sends a relative authorization to the terminal by using multiple E-RGCHs on the first downlink carrier, and the terminal is configured according to each received E-RGCH. The relative authorization carried is used to determine whether to adjust the data transmission rate on each uplink carrier.

If the first downlink control channel and the second downlink control channel are both E-AGCH, the base station sends an absolute grant to the terminal by using multiple E-AGCHs on the first downlink carrier, and the terminal is configured according to each received E-AGCH. The absolute authorization carried is used to determine whether to adjust the maximum data transmission rate on each uplink carrier.

Since the base station transmits multiple downlink control channels on the same downlink carrier, the terminal receives multiple downlink control channels on one uplink carrier, and needs to distinguish which uplink carrier data transmission corresponds to the downlink control channel.

In a possible implementation manner, the first downlink control channel sent on the first downlink carrier carries identifier information for identifying the first downlink control channel, and indicates that the terminal uses the identifier information of the downlink control channel and the uplink. Corresponding relationship between carriers to determine a first downlink control channel associated with data transmission in the first uplink carrier;

The second downlink control channel sent by the base station on the first downlink carrier carries identifier information for identifying the second control channel, and indicates that the terminal determines the relationship between the identifier of the downlink control channel and the uplink carrier. A second downlink control channel associated with data transmission in the two uplink carriers. The mapping between the identifier information of the downlink control channel and the uplink carrier may be notified to the terminal through high layer signaling, or may be predefined.

The terminal determines, according to the identifier information of the downlink control channel and the uplink carrier, the uplink number in the first uplink carrier according to the identifier information carried on the received first downlink control channel. According to the first downlink control channel that is associated with the transmission, the terminal determines, according to the identifier information of the downlink control channel and the uplink carrier, the terminal is in the second uplink carrier according to the identifier information that is received on the second control channel. The second downlink control channel associated with the uplink data transmission.

Optionally, the foregoing identifier information used to identify the first control channel and the second control channel includes different channelization codes. The manner in which the identification information is specifically represented by the channelization code is as described in the foregoing embodiment, and the repetitions are not described herein again.

How the base station decides to transmit the first downlink control channel and which second downlink control channel on the first downlink carrier depends on some factors. For example, the second downlink control channel sent by the base station on the first downlink carrier needs the first downlink carrier corresponding to the second downlink control channel to be in an active state.

Optionally, the base station may also adopt an existing technology, and only send a corresponding one downlink control channel on each downlink carrier. Whether the method provided in FIG. 5 of the embodiment of the present application is adopted, the upper layer is required to notify the base station by using signaling.

Based on the same inventive concept, as shown in FIG. 6, the embodiment of the present application further provides a device 600 for controlling a channel in a multi-carrier system, where the multi-carrier system includes a first carrier and at least one second carrier, and the control channel in the multi-carrier system. The device 600 includes a processing unit 601 and a transmitting unit 602. Apparatus 600 for controlling a channel in a multi-carrier system is used to perform the method illustrated in FIG.

Optionally, the first carrier is a downlink primary carrier, and the second carrier is a downlink secondary carrier; or the first carrier is an uplink primary carrier, and the second carrier is an uplink secondary carrier.

among them:

The processing unit 601 is configured to perform spreading on the first control channel and the at least one second control channel by using a channelization code, where the first control channel is associated with the first data channel in the first carrier, and the second control channel is A second data channel association in the two carriers;

The sending unit 602 is configured to send the first control channel and the at least one second control channel on the first carrier.

Optionally, the processing unit 601 is configured to:

Carrying the first identification signal on the first control channel sent by the sending unit 602 on the first carrier Information, the first identification information is used to identify the first carrier; and,

On the second control channel that is sent by the sending unit 602 on the first carrier, the second identifier information is carried, and the second identifier information is used to identify the second carrier.

Optionally, if the first control channel is the high speed shared control channel HS-SCCH, the processing unit 601 is configured to:

Encoding the first identification information and the first control signaling, and carrying the encoded first control signaling and the first identification information on the first control channel sent by the sending unit on the first carrier, where A control signaling is associated with the first data channel;

If the second control channel is the HS-SCCH, the processing unit 601 is configured to:

And encoding the second identifier information and the second control signaling, and carrying the encoded second control signaling and the second identifier information on the second control channel that is sent by the sending unit on the first carrier, where The second control signaling is associated with the second data channel.

Optionally, the processing unit 601 is configured to:

The third control information is carried on the first control channel that is sent by the sending unit 602 on the first carrier, where the third identifier information is used to identify the first control channel, and is used to indicate that the receiving end is based on the identification information of the control channel and the carrier. Corresponding relationship and third identification information, determining a first carrier corresponding to the first control channel; and

The fourth control information is carried by the sending unit 602 on the second control channel that is sent by the sending unit 602, where the fourth identifier information is used to identify the second control channel, and is used to indicate that the receiving end is based on the identification information of the control channel and the carrier. Corresponding relationship and fourth identification information are used to determine a second carrier corresponding to the second control channel.

Optionally, the third identifier information includes a first channelization code, and the fourth identifier information includes a second channelization code.

Based on the same inventive concept, as shown in FIG. 7, the embodiment of the present application further provides an apparatus 700 for controlling a channel in a multi-carrier system, where the multi-carrier system includes a first carrier and at least one second carrier, and the control channel in the multi-carrier system. The apparatus 700 includes a processing unit 701 and a receiving unit 702. Apparatus 700 for controlling a channel in a multi-carrier system is used to perform the method illustrated in FIG.

among them:

The processing unit 701 is configured to listen to the first carrier.

The receiving unit 702 is configured to receive, on the first carrier, the first control channel and the at least one second control channel that are sent by the sending end, where the first control channel is associated with the first data channel of the first carrier, and the second control channel Associated with a second data channel in the second carrier.

The processing unit 701 is further configured to perform despreading on the first control channel and the at least one second control channel.

Optionally, the processing unit 701 is further configured to:

After the receiving unit 702 receives the first control channel and the at least one second control channel that are sent by the sending end, the receiving unit 702 determines the identifier of the first identifier information according to the first identifier information that is received on the received first control channel. Determining, by the second identifier information carried on the second control channel, the second carrier corresponding to the second control channel that is identified by the second identifier information; or

Determining, according to the third identifier information carried on the first control channel, the first control channel identified by the third identifier information, and determining, according to the correspondence between the identifier information of the control channel and the carrier, the data channel associated with the first carrier a first control channel, determining, according to the fourth identifier information carried on the second control channel, the second control channel identified by the fourth identifier information, and determining the second carrier according to the correspondence between the identifier information of the control channel and the carrier The second control channel associated with the data channel.

Optionally, the processing unit 701 is further configured to:

After determining the first carrier according to the first identifier information or the third identifier information, decoding, by using the first control signaling carried on the first control channel, data received on the first data channel;

After determining the second carrier according to the second identifier information or the fourth identifier information, the data received on the second data channel is decoded by using the second control signaling carried on the second control channel.

Based on the same inventive concept, as shown in FIG. 8, the embodiment of the present application further provides a device 800 for controlling a channel in a multi-carrier system, where the multi-carrier system includes a first uplink carrier, at least one second uplink carrier, and a first a downlink carrier, a device 800 for controlling a channel in a multi-carrier system, including The processing unit 801 and the transmitting unit 802, the device 800 for controlling the channel in the multi-carrier system, are used to perform the method shown in FIG.

among them:

The processing unit 801 is configured to perform spreading on the first downlink control channel and the at least one second downlink control channel by using a channelization code, where the first downlink control channel is associated with uplink data transmission of the terminal in the first uplink carrier. And the second downlink control channel is associated with the uplink data transmission of the terminal in the second uplink carrier;

The sending unit 802 is configured to send the first downlink control channel and the at least one second downlink control channel on the first downlink carrier.

Based on the same inventive concept, as shown in FIG. 9, the embodiment of the present application further provides a device 900 for controlling a channel in a multi-carrier system, where the multi-carrier system includes a first carrier and at least one second carrier in a multi-carrier system. The device 900 for controlling the channel is for performing the method shown in FIG. 2. The device for controlling the channel in the multi-carrier system includes a transceiver 901, a processor 902, a memory 903, and a bus 904. The transceiver 901, the processor 902, and the memory 903 are all connected to the bus 904. The memory 903 stores a set of programs for processing. The 902 is used to call a program stored in the memory 903, and when the program is executed, causes the processor 902 to perform the following operations:

Spreading a first control channel and at least one second control channel by using a channelization code, wherein the first control channel is associated with a first data channel of the first carrier, and the second of the second control channel and the second carrier Data channel association; transmitting, by the transceiver, the first control channel and the at least one second control channel on the first carrier. When the second control channel is transmitted on the second carrier, the second control channel is improved because the path loss of the second carrier is large and the channel quality is poor, resulting in low reliability of the second control channel. Reliability. Moreover, since the second control channel is not sent on the second carrier, the transmitting end can use the resource saved by the second carrier to transmit the data channel, thereby improving the coverage and throughput of the second carrier.

Optionally, the processor 902 is configured to: carry, on the first control channel that is sent by the transceiver 901 on the first carrier, the first identifier information, where the first identifier information is used to identify the first carrier; and, in the transceiver, The second control channel sent on the first carrier carries the second identification information, and the second identification information The information is used to identify the second carrier. It is ensured that the receiving end receives multiple control channels on one carrier, correctly distinguishes the carrier corresponding to the control channel, and correctly decodes the data on the carrier.

Optionally, if the first control channel is the high-speed shared control channel HS-SCCH, the processor 902 is configured to: jointly encode the first identification information and the first control signaling, and send the first carrier by using the transceiver. The first control channel carries the encoded first control signaling and the first identification information, where the first control signaling is associated with the first data channel; and if the second control channel is the HS-SCCH, the processor 902 The method is configured to: encode the second identifier information and the second control signaling together, and carry the encoded second control signaling and the second identifier information on the second control channel that is sent by the transceiver on the first carrier, The second control signaling is associated with the second data channel.

In a possible design, the processor 902 is configured to: carry, on the first control channel that is sent by the transceiver 901 on the first carrier, third identifier information, where the third identifier information is used to identify the first control channel, and Determining, by the receiving end, the first carrier corresponding to the first control channel according to the correspondence between the identification information of the control channel and the third identification information; and the second control channel that is sent by the transceiver 901 on the first carrier And carrying the fourth identifier information, where the fourth identifier information is used to identify the second control channel, and is used to indicate that the receiving end determines the second control channel according to the correspondence between the identifier information of the control channel and the carrier and the fourth identifier information. The second carrier.

The processor 902 can be a central processing unit (CPU), a network processor (NP), or a combination of a CPU and an NP.

Processor 902 can also further include a hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof. The PLD may be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a general array logic (GAL), or any combination thereof.

The memory 903 may include a volatile memory such as a random-access memory (RAM); the memory 903 may also include a non-volatile memory such as a flash memory (flash) Memory), hard disk Drive, HDD) or solid state drive (SSD); the memory 903 may also include a combination of the above types of memory.

Based on the same inventive concept, as shown in FIG. 10, the embodiment of the present application further provides a device 1000 for controlling a channel in a multi-carrier system, where the multi-carrier system includes a first carrier and at least one second carrier, and the control channel in the multi-carrier system. The apparatus 1000 is for performing the method shown in FIG. 2. The apparatus 1000 for controlling a channel in a multi-carrier system includes a transceiver 1001, a processor 1002, a memory 1003, and a bus 1004. The transceiver 1001, the processor 1002, and the memory 1003 are all connected to the bus 1004, wherein the memory 1003 stores a set of programs. The processor 1002 is configured to invoke a program stored in the memory 1003, and when the program is executed, the processor 1002 performs: receiving, on the first carrier, the first control channel and the at least one second control channel that are sent by the sending end, where The first control channel is associated with the first data channel of the first carrier, the second control channel is associated with the second data channel of the second carrier, and the first control channel and the at least one second control channel are despread. This can improve the reliability of the second control channel.

In a possible design, the processor 1002 is further configured to: after the transceiver 1001 receives the first control channel and the at least one second control channel sent by the transmitting end on the first carrier, according to the received first control channel, Determining, by the first identifier information, the first carrier that is identified by the first identifier information, and determining, according to the second identifier information that is received on the second control channel, the second identifier corresponding to the second control channel Or determining, according to the received third identifier information carried on the first control channel, the first control channel identified by the third identifier information, and determining, according to the correspondence between the identifier information of the control channel and the carrier, the first carrier a first control channel associated with the data channel; determining, according to the received fourth identification information carried on the second control channel, the second control channel identified by the fourth identification information, and determining, according to the correspondence between the identification information of the control channel and the carrier A second control channel associated with a data channel of the second carrier. This ensures that the carrier corresponding to the control channel can be correctly distinguished, and the data decoding on the carrier is correctly matched.

Optionally, the processor 1002 is further configured to: after determining the first carrier according to the first identifier information or the third identifier information, use the first control signaling carried on the first control channel to receive data on the first data channel. Decoding; determining the second load according to the second identification information or the fourth identification information After the wave, the data received on the second data channel is decoded using the second control signaling carried on the second control channel.

The processor 1002 may be a central processing unit (CPU), a network processor (NP), or a combination of a CPU and an NP.

The processor 1002 may further include a hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof. The PLD may be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a general array logic (GAL), or any combination thereof.

The memory 1003 may include a volatile memory such as a random-access memory (RAM); the memory 1003 may also include a non-volatile memory such as a flash memory (flash) Memory), hard disk drive (HDD) or solid-state drive (SSD); the memory 1003 may also include a combination of the above types of memories.

Based on the same inventive concept, as shown in FIG. 11, the embodiment of the present application further provides a device 1100 for controlling a channel in a multi-carrier system, where the multi-carrier system includes a first uplink carrier, at least one second uplink carrier, and a first downlink. A row carrier, a control channel device 1100 in a multi-carrier system is used to perform the method shown in FIG. 5. The device 1100 for controlling a channel in a multi-carrier system includes: a transceiver 1101, a processor 1102, a memory 1103, and a bus 1104, and a transceiver 1101. The processor 1102 and the memory 1103 are all connected to the bus 1104. The memory 1103 stores a set of programs. The processor 1102 is configured to call a program stored in the memory 1103. When the program is executed, the processor 1102 is executed: using different The channelization code spreads the downlink control channel of each of the first downlink control channel and the at least one second downlink control channel, where the uplink data transmission of the first downlink control channel and the terminal in the first uplink carrier Correlation, the second downlink control channel is associated with the uplink data transmission of the terminal in the second uplink carrier; and is sent on the first downlink carrier A first downlink control channel and at least a second downlink control channel. Avoiding when the second downlink control channel is transmitted on the second downlink carrier, The problem that the path loss of the second downlink carrier is large and the channel quality is poor, resulting in low reliability of the second downlink control channel improves the reliability of the second downlink control channel transmission. Moreover, since the second control channel is not sent on the second downlink carrier, the transmitting end can use the resource saved by the second downlink carrier to transmit the data channel, thereby improving the coverage and throughput of the second downlink carrier.

The processor 1102 can be a central processing unit (CPU), a network processor (NP), or a combination of a CPU and an NP.

The processor 1102 can also further include a hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof. The PLD may be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a general array logic (GAL), or any combination thereof.

The memory 1103 may include a volatile memory such as a random-access memory (RAM); the memory 1103 may also include a non-volatile memory such as a flash memory (flash) Memory), hard disk drive (HDD) or solid state drive (SSD); the memory 1103 may also include a combination of the above types of memory.

It should be noted that the apparatus provided in FIG. 6-7 and FIG. 9-10 can be used to implement the method shown in FIG. 2. The apparatus provided in Figures 8 and 11 can be used to implement the method illustrated in Figure 5. In a specific implementation manner, the processing unit 601 in FIG. 6 can be implemented by the processor 902 in FIG. 9, and the sending unit 602 can be implemented by the transceiver 901 in FIG. The processing unit 701 of FIG. 7 can be implemented by the processor 1002 of FIG. 10, and the receiving unit 702 can be implemented by the transceiver 1001 of FIG. The processing unit 801 in FIG. 8 can be implemented by the processor 1102 in FIG. 11, and the transmitting unit 903 can be implemented by the transceiver 1101 in FIG.

The present application further provides a communication system, including a transmitting end and a receiving end. The transmitting end may be the device provided by the embodiment corresponding to FIG. 6 or FIG. 9 , and the receiving end may be provided by the embodiment corresponding to FIG. 7 or FIG. 10 . device of. The communication system is for performing the method of the embodiment corresponding to FIG. 2.

The present application further provides another communication system, including a base station and a terminal, and the base station may be the device provided by the embodiment corresponding to FIG. 8 or FIG. The communication system is for performing the method of the embodiment corresponding to FIG.

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

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the present application. It will be understood that each flow 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 provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

While the preferred embodiment of the present application has been described, it will be apparent that those skilled in the art can make further changes and modifications to the embodiments. Therefore, the right to attach The requirements are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the application.

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

Claims (23)

A method for transmitting a control channel in a multi-carrier system, wherein the multi-carrier system includes a first carrier and at least one second carrier, and the method includes: Transmitting, by the transmitting end, the first control channel and the at least one second control channel by using a channelization code, wherein the first control channel is associated with a first data channel of the first carrier, the second control channel Associated with a second one of the second carriers; The transmitting end sends a first control channel and at least one second control channel on the first carrier. The method according to claim 1, wherein the transmitting end transmitting the first control channel and the at least one second control channel on the first carrier, including: The sending end carries the first identifier information on the first control channel that is sent by the sending end, where the first identifier information is used to identify the first carrier; The sending end carries the second identifier information on the second control channel that is sent by the sending end, and the second identifier information is used to identify the second carrier. The method according to claim 2, wherein if said first control channel is a high speed shared control channel HS-SCCH, said transmitting end is on said first control channel transmitted on said first carrier And carrying the first identifier information, including: Transmitting, by the sending end, the first identification information and the first control signaling, and carrying the encoded first control signaling and the first control channel on the first carrier An identification information, wherein the first control signaling is associated with the first data channel; If the second control channel is the HS-SCCH, the sending, by the sending end, the second identifier information on the second control channel that is sent by the sending end, includes: Transmitting, by the sending end, the second identifier information and the second control signaling, and carrying the encoded second control signaling and the second control channel on the first carrier Two identification information, wherein the second control signaling is associated with the second data channel. The method of claim 1 wherein said transmitting end is on said first carrier Transmitting the first control channel and the at least one second control channel, including: The sending end carries the third identifier information on the first control channel that is sent by the sending end, where the third identifier information is used to identify the first control channel, and is used to indicate that the receiving end is configured according to Determining, by the correspondence between the identification information of the control channel and the carrier, and the third identifier information, the first carrier corresponding to the first control channel; The transmitting end carries the fourth identifier information on the second control channel that is sent by the sending end, where the fourth identifier information is used to identify the second control channel, and is used to indicate that the receiving end is configured according to Determining, by the correspondence between the identification information of the control channel and the carrier, and the fourth identifier information, the second carrier corresponding to the second control channel. The method of claim 4, wherein the third identification information comprises a first channelization code; and the fourth identification information comprises a second channelization code. A method according to any one of claims 1 to 5, characterized in that The first carrier is a downlink primary carrier, and the second carrier is a downlink secondary carrier; or, The first carrier is an uplink primary carrier, and the second carrier is an uplink secondary carrier. A method for transmitting a control channel in a multi-carrier system, wherein the multi-carrier system includes a first carrier and at least one second carrier, and the method includes: Receiving, by the receiving end, the first control channel and the at least one second control channel that are sent by the sending end, where the first control channel is associated with the first data channel of the first carrier, The second control channel is associated with a second one of the second carriers; The receiving end despreads the first control channel and the at least one second control channel. The method according to claim 7, wherein the receiving end, after receiving the first control channel and the at least one second control channel sent by the transmitting end, on the first carrier, further includes: Determining, by the receiving end, the first carrier identified by the first identifier information according to the received first identifier information carried on the first control channel; and the receiving end according to the received second control Determining, by the second identifier information carried on the channel, the second carrier corresponding to the second control channel that is identified by the second identifier information; or The receiving end determines, according to the received third identifier information carried on the first control channel, the first control channel that is identified by the third identifier information, according to the correspondence between the identifier information of the control channel and the carrier, Determining a first control channel associated with the data channel of the first carrier; the receiving end determining, according to the received fourth identifier information carried on the second control channel, the second identifier of the fourth identifier information The control channel determines a second control channel associated with the data channel of the second carrier according to the corresponding relationship between the identification information of the control channel and the carrier. The method according to claim 8, wherein the receiving end further comprises: after determining the first carrier according to the first identifier information or the third identifier information, Decoding data received on the first data channel by using first control signaling carried on the first control channel; After the receiving end determines the second carrier according to the second identifier information or the fourth identifier information, the receiving end further includes: And decoding data received on the second data channel by using second control signaling carried on the second control channel. The method according to claim 8 or 9, wherein the third identification information comprises a first channelization code; and the fourth identification information comprises a second channelization code. The method according to any one of claims 7 to 10, wherein the first carrier is a downlink primary carrier, and the second carrier is a downlink secondary carrier; or, The first carrier is an uplink primary carrier, and the second carrier is an uplink secondary carrier. A method for transmitting a control channel in a multi-carrier system, wherein the multi-carrier system includes a first uplink carrier, at least one second uplink carrier, and a first downlink carrier, and the method includes: The base station uses a channelization code to spread the first downlink control channel and the at least one second downlink control channel, where the first downlink control channel is associated with the uplink data transmission of the terminal in the first uplink carrier, The second downlink control channel is associated with uplink data transmission of the terminal in the second uplink carrier; The base station sends a first downlink control channel and at least one second downlink control channel on the first downlink carrier. An apparatus for controlling a channel in a multi-carrier system, wherein the multi-carrier system includes a first carrier and at least one second carrier, and the apparatus includes: a processing unit, configured to perform spreading on the first control channel and the at least one second control channel by using a channelization code, where the first control channel is associated with a first data channel in the first carrier, where Two control channels are associated with a second one of the second carriers; And a sending unit, configured to send the first control channel and the at least one second control channel on the first carrier. The apparatus of claim 13 wherein said processing unit is operative to: Transmitting, by the sending unit, the first identifier information on the first control channel that is sent by the sending unit, where the first identifier information is used to identify the first carrier; And transmitting, by the sending unit, the second control information on the second control channel that is sent by the sending unit, where the second identifier information is used to identify the second carrier. The apparatus according to claim 14, wherein if the first control channel is a high speed shared control channel HS-SCCH, the processing unit is configured to: Coding with the first control information and the first control signaling, and carrying the encoded first control signaling and the first control channel sent by the sending unit on the first carrier First identification information, wherein the first control signaling is associated with the first data channel; If the second control channel is an HS-SCCH, the processing unit is configured to: Coding with the second identification information and the second control signaling, and carrying the encoded second control signaling and the second control channel sent by the sending unit on the first carrier Second identification information, wherein the second control signaling is associated with the second data channel. The apparatus of claim 13 wherein said processing unit is operative to: The third control information is carried on the first control channel that is sent by the sending unit on the first carrier, where the third identifier information is used to identify the first control channel, and is used to indicate the receiving end. According to the correspondence between the identification information of the control channel and the carrier, and the third identifier information, Determining the first carrier corresponding to the first control channel; and And transmitting, by the sending unit, the second control channel, on the second control channel, the fourth identifier information, where the fourth identifier information is used to identify the second control channel, and is used to indicate the receiving end. And determining, according to the correspondence between the identifier information of the control channel and the carrier, and the fourth identifier information, the second carrier corresponding to the second control channel. An apparatus for controlling a channel in a multi-carrier system, wherein the multi-carrier system includes a first carrier and at least one second carrier, and the apparatus includes: a processing unit, configured to listen to the first carrier; a receiving unit, configured to receive, on the first carrier, a first control channel and at least one second control channel that are sent by the sending end, where the first control channel is associated with the first data channel of the first carrier The second control channel is associated with a second one of the second carriers. The apparatus according to claim 17, wherein said processing unit is further configured to: After the receiving unit receives the first control channel and the at least one second control channel that are sent by the sending end, the receiving unit determines, according to the received first identifier information carried on the first control channel, Determining, by the first identification information, the first carrier that is identified by the first identifier information, and determining, according to the received second identifier information that is carried on the second control channel, a second identifier corresponding to the second control channel Two carriers; or, Determining, according to the received third identifier information that is carried on the first control channel, the first control channel that is identified by the third identifier information, and determining, according to the correspondence between the identifier information of the control channel and the carrier, a first control channel associated with the data channel of the carrier; determining, according to the received fourth identifier information carried on the second control channel, the second control channel identified by the fourth identifier information, according to the identifier of the control channel The corresponding relationship between the information and the carrier determines a second control channel associated with the data channel of the second carrier. The device of claim 18, wherein the processing unit is further configured to: After determining the first carrier according to the first identifier information or the third identifier information, performing data received on the first data channel by using first control signaling carried on the first control channel Decoding After determining the second carrier according to the second identifier information or the fourth identifier information, performing data received on the second data channel by using second control signaling carried on the second control channel Decoding. A device for transmitting a control channel in a multi-carrier system, wherein the multi-carrier system includes a first uplink carrier, at least one second uplink carrier, and a first downlink carrier, and the apparatus includes: a processing unit, configured to perform spreading on each of the first downlink control channel and the at least one second downlink control channel by using different channelization codes, where the first downlink control channel and the terminal are Uplink data transmission in the first uplink carrier is associated, and the second downlink control channel is associated with uplink data transmission in the second uplink carrier by the terminal; And a sending unit, configured to send, on the first downlink carrier, a first downlink control channel and at least one second downlink control channel. An apparatus for controlling a channel in a multi-carrier system, comprising: a transceiver, a processor, a memory, and a bus, wherein the transceiver, the processor, and the memory are all connected to the bus, wherein the memory stores a set of programs. The processor is configured to invoke a program stored in the memory, and when executed, cause the processor to perform the method of any of claims 1-6. An apparatus for controlling a channel in a multi-carrier system, comprising: a transceiver, a processor, a memory, and a bus, wherein the transceiver, the processor, and the memory are all connected to the bus, wherein the memory stores a set of programs. The processor is configured to invoke a program stored in the memory, and when executed, cause the processor to perform the method of any one of claims 7-11. An apparatus for controlling a channel in a multi-carrier system, comprising: a transceiver, a processor, a memory, and a bus, wherein the transceiver, the processor, and the memory are all connected to the bus, wherein the memory stores a set of programs. The processor is configured to invoke a program stored in the memory, and when executed, cause the processor to perform the method of claim 12.

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