CN101540632B - Method and device for transmitting information in multi-carrier system - Google Patents
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- H—ELECTRICITY
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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- H—ELECTRICITY
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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Abstract
The embodiment of the invention provides a method for transmitting information in a multi-carrier system, which comprises the following steps: establishing high-speed dedicated physical control channels (HS-DPCCH) on an uplink; allocating the HS-DPCCH channels on the uplink to uplink carrier frequency; and distinguishing information on the HS-DPCCH channels and then transmitting the same. The embodiment also provides a device for transmitting the information in the multi-carrier system, which can effectively distinguish the information from different HS-DPCCH channels and transmit the same on the premise of not modifying codes and transmission formats.
Description
Technical Field
The invention relates to the field of mobile communication, in particular to a control information feedback technology in a multi-carrier system.
Background
To meet the increasing wireless service growth, a multi-carrier communication system is proposed on the basis of the existing single carrier code division multiple access communication system. A multi-carrier communication system may transmit data on two or more carrier frequencies simultaneously, and thus for one user, the uplink and downlink may communicate using the same or different number of carrier frequencies simultaneously.
When the same number of carrier frequencies is used for the uplink and the downlink, the uplink and the downlink carrier frequencies can be considered as a pair at this time, the communication mode is similar to that of a single carrier system, and the paired carrier frequencies can independently transmit data and control information. However, when the number of carrier frequencies used by the uplink and downlink of the user is different, there may be one or more unpaired carrier frequencies in the uplink or downlink. In such an asymmetric communication system, how to obtain corresponding control and feedback information when data transmission is performed on unpaired frequency points needs to be considered.
For example, when data transmission is performed on a service carried on a high speed downlink packet data access HSDPA, a high speed dedicated physical control channel HS-DPCCH of a high speed downlink shared channel HS-DSCH needs to be established by an uplink for feeding back precoding control information PCI, a channel quality indicator CQI, and an acknowledgement/non-acknowledgement indicator ACK/NACK. When the downlink establishes HSDPA connection on N carrier frequencies, the uplink needs to return N independent PCI, CQI, and ACK/NACK indications according to the communication conditions on the N downlink carrier frequencies. However, if the uplink can only communicate on M (M < N) carrier frequencies, the problem of how to transmit the N pieces of information on the M carrier frequencies needs to be solved.
In the prior art, the coding format of the CQI field can be modified to divide the CQI field into a plurality of sub-fields, so that a plurality of PCIs, CQIs, and ACK/NACK information can be transmitted on one carrier frequency. However, in the course of implementing the present invention, the inventors found that the prior art method has at least the following problems: the implementation is complicated due to the need to modify the coding and transport format of the CQI field.
Disclosure of Invention
The embodiment of the invention provides an information transmission method and device in a multi-carrier system, which can effectively distinguish and transmit information from different HS-DPCCH channels under the premise of not modifying codes and transmission formats under the condition that uplink carrier frequencies and downlink carrier frequencies are not symmetrical.
The embodiment of the invention provides an information transmission method of a multi-carrier system, which mainly comprises the following steps:
establishing a high-speed dedicated physical control channel HS-DPCCH on an uplink, wherein the number of the established HS-DPCCH channels is the same as the number N of downlink carrier frequencies, the number M of the uplink carrier frequencies is less than N, and M and N are all non-zero positive integers;
allocating the HS-DPCCH channel of the uplink to the uplink carrier frequency;
if one uplink carrier frequency is larger than one HS-DPCCH channel, distinguishing information on a plurality of HS-DPCCH channels on the carrier frequency;
information on the N HS-DPCCH channels is transmitted.
The embodiment of the invention also provides an information transmission device in a multi-carrier system, which mainly comprises:
the channel establishing unit is used for establishing HS-DPCCH channels on an uplink, wherein the number of the established HS-DPCCH channels is the same as the number N of downlink carrier frequencies, the number M of the uplink carrier frequencies is less than N, and M and N are all non-zero positive integers;
the distribution unit is used for distributing the HS-DPCCH channel established by the channel establishing unit to an uplink carrier frequency;
the processing unit is used for distinguishing the information on the HS-DPCCH channels on the carrier frequency if one carrier frequency is larger than one HS-DPCCH channel after the distribution unit distributes the uplink carrier frequency to all the HS-DPCCH channels;
and the transmission unit is used for transmitting the information on the N HS-DPCCH channels.
The method and the device provided by the embodiment of the invention can effectively distinguish and transmit information from different HS-DPCCH channels, such as feeding back PCI, CQI and ACK/NACK indication information through the HS-DPCCH channel, by scrambling by using a scrambling code or using different channel codes or by I/Q multiplexing on the premise of not modifying coding and transmission formats under the condition that uplink and downlink carrier frequencies are asymmetric.
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Fig. 1 is a flowchart illustrating an information transmission method in a multi-carrier system according to an embodiment of the invention;
fig. 2 is a flowchart illustrating an information transmission method in a multi-carrier system according to another embodiment of the invention;
fig. 3 is a flowchart illustrating an information transmission method in a multi-carrier system according to still another embodiment of the invention;
fig. 4 is a schematic structural diagram of an information transmission apparatus in a multi-carrier system according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an information transmission apparatus in a multi-carrier system according to yet another embodiment of the present invention;
fig. 6 is a schematic structural diagram of an information transmission apparatus in a multi-carrier system according to yet another embodiment of the present invention;
fig. 7 is a schematic structural diagram of an information transmission apparatus in a multi-carrier system according to yet another embodiment of the invention.
Detailed Description
When there are unpaired carrier frequencies in the uplink and downlink, that is, the number of carrier frequencies in the uplink and downlink (simply referred to as uplink and downlink carrier frequencies) is different, an embodiment of the present invention provides an information transmission method in a multi-carrier system, which mainly includes: establishing HS-DPCCH channels on an uplink, wherein the number of the established HS-DPCCH channels is the same as the number N of downlink carrier frequencies, the number M of the uplink carrier frequencies is less than N, and M and N are all non-zero positive integers; allocating HS-DPCCH channels of N uplinks to uplink carrier frequencies; if one uplink carrier frequency has more than one HS-DPCCH channel, distinguishing information on a plurality of HS-DPCCH channels on the carrier frequency; information on the N HS-DPCCH channels is transmitted.
The different numbers of uplink and downlink carrier frequencies may include two cases:
1. the number M of uplink carrier frequencies is greater than or equal to the number N of downlink carrier frequencies, and at this time, information on the HS-DPCCH channel can be directly transmitted on the uplink carrier frequency corresponding to the downlink carrier frequency, the transmission mode is basically the same as that of the prior art, and will not be described in detail herein;
2. the number M of the uplink carrier frequencies is less than the number N of the downlink carrier frequencies, at this time, at least one HS-DPCCH channel is allocated to each uplink carrier frequency, and information on different HS-DPCCH channels on the same carrier frequency needs to be distinguished and then transmitted.
The information on a plurality of HS-DPCCH channels on the same uplink carrier frequency can be distinguished by scrambling by using a scrambling code, using different channel codes, or by methods such as I/Q (input/output) multiplexing.
Another embodiment of the present invention provides an information transmission method in a multi-carrier system, assuming that the number of uplink carrier frequencies is M, the number of downlink carrier frequencies is N, M is less than N, and M and N are all non-zero positive integers, as shown in fig. 1, the method may include:
and S101, establishing an HS-DPCCH channel on an uplink.
When the downlink establishes HSDPA on N carrier frequencies, N HS-DPCCH channels may also be established on the uplink, each feeding back information required by one carrier frequency, such as PCI, CQI and ACK/NACK indications. The coding and transmission mode of the feedback information is basically the same as that of the single frequency communication system in the prior art.
S102, distributing the established HS-DPCCH channel of the uplink to the uplink carrier frequency.
For example, for the N HS-DPCCH channels established on the uplink carrier frequency, the channels may be allocated to M uplink carrier frequencies. Since N > M, there must be more than 1HS-DPCCH channel on a certain uplink carrier frequency or frequencies.
S103, distinguishing information on different HS-DPCCH channels on the same uplink carrier frequency by using different channel codes.
By assigning channel codes to the HS-DPCCH channels of the uplink, it can be used to distinguish information on different HS-DPCCH channels.
For clarity of description, the M uplink carrier frequencies are numbered 1, 2 … … M.
For each carrier frequency, the channel code used by the first HS-DPCCH is the same as that of the single carrier system, and the operation can be carried out according to the existing protocol.
However, as mentioned above, when N > M, there are more than 1HS-DPCCH channel on some or some of the uplink carrier frequencies, and for the HS-DPCCH channels on these carrier frequencies, different channel codes can be allocated according to the usage of channel codes of each carrier frequency.
For example, in the case where the number M of uplink carrier frequencies is 2 and the number N of downlink carrier frequencies is 5, one possible channel allocation case is: on the uplink 5 HS-DPCCH channels 1-5 are established, HS-DPCCH channels 1, 3, 5 being allocated to uplink carrier frequency 1 and HS-DPCCH channels 2, 4 being allocated to uplink carrier frequency 2.
Assuming that the HS-DPCCH channel 1 uses the channel code C1 as specified by the protocol, the HS-DPCCH channel 2 also uses the channel code C2 to transmit information on the uplink carrier 2 as specified by the protocol, the other two HS-DPCCH channels 3, 5 on the uplink carrier 1 may use the channel code that is free on that carrier, and similarly, the other HS-DPCCH channel 4 on the uplink carrier 2 may use the channel code that is free on that carrier.
It should be noted that, for HS-DPCCH channels on different carrier frequencies, the channel codes used by them may be the same or different.
S104, information on the HS-DPCCH channel is transmitted.
After determining the channel code of each HS-DPCCH channel, the information on the N HS-DPCCH channels can be transmitted after being spread.
The method provided by the above embodiment can effectively distinguish and transmit information from different HS-DPCCH channels through different channel codes for a plurality of HS-DPCCH channels on the same carrier frequency without modifying coding and transmission formats, for example, feeding back PCI, CQI and ACK/NACK indication information through the HS-DPCCH channels, for the case that the uplink carrier frequency and the downlink carrier frequency are asymmetric.
Another embodiment of the present invention provides an information transmission method in a multi-carrier system, assuming that the number of uplink carrier frequencies is M, the number of downlink carrier frequencies is N, M is less than N, and M and N are all non-zero positive integers, as shown in fig. 2, the method may include:
s201, establishing an HS-DPCCH channel on an uplink.
S202, the established HS-DPCCH channel of the uplink is distributed to the uplink carrier frequency.
The execution processes of S201 and S202 are substantially the same as those of S101 and S102, and are not described herein again.
S203, information on different HS-DPCCH channels on the same uplink carrier frequency is distinguished through I/Q multiplexing.
That is, information on different HS-DPCCH channels using the same channel code is distinguished by I/Q multiplexing on the same carrier frequency.
For better understanding of the scheme, the following describes a method of I/Q multiplexing in detail with reference to an application scenario of HSDPA.
The serial numbers of M uplink carrier frequencies are 1, 2 … … M, and the serial numbers of N HS-DPCCH channels are 1, 2 … N.
For a plurality of HS-DPCCH channels on one uplink carrier frequency, under the condition that channel codes on each branch do not conflict, every two HS-DPCCH channels can use the same channel code, but can be respectively distributed on an I branch and a Q branch, so that information on the plurality of HS-DPCCH channels is distinguished; different channel codes can be used for distinguishing a plurality of HS-DPCCH channels on the same branch of the same uplink carrier frequency. For example, assuming that 3 HS-DPCCH channels are allocated to an uplink carrier frequency, the first HS-DPCCH channel is allocated to the I channel of the carrier frequency using the channel code C1, and if C1 does not collide with the channel codes of other physical channels on the Q channel, the second HS-DPCCH channel on the uplink carrier frequency can be allocated to the Q channel using the channel code C1; if C1 collides with the channel code of other physical channels on the Q path, an idle channel code is selected, and the third HS-DPCCH channel on the uplink carrier frequency can be allocated on the I path or the Q path by using the idle channel code.
Furthermore, when the information on different HS-DPCCH channels on the same uplink carrier frequency is multiplexed by I/Q path, or first select the branch on which the HS-DPCCH channel information allocated on the uplink carrier frequency is transmitted according to the principle of I/Q total power balance, for example, there are already a plurality of other physical channels in the I path of uplink carrier frequency 1, and the physical channel on the Q path is less, then the power of the I path is already higher, at this time, all the information on the HS-DPCCH channel allocated to the carrier frequency can be transmitted on the Q path by using different channel codes, and, if the power on both branches is balanced by itself, the two HS-DPCCH channels can be multiplexed, the HS-DPCCH channels on both legs may use the same channel code if no collision of channel codes occurs on the legs.
Table 1 illustrates the selection and multiplexing of channel codes in various cases by taking the scenario of N-2 and M-1 as an example, where N ismax-dpdchRepresenting the number of maximum dedicated physical data channels, Cch，SF，kIndicating the number of the channel code.
TABLE 1 CHannel code selection and multiplexing scenarios for HS-DPCCH channels
S204, information on the N HS-DPCCH channels is transmitted.
After the multiplexing condition and the channel code of each HS-DPCCH channel are determined, the information on the N HS-DPCCH channels is transmitted after being spread;
in addition, it can be understood that, for the information on the uplink carrier frequency of only one HS-DPCCH channel, the information on the HS-DPCCH channels on the uplink carrier frequencies can be transmitted first, since no distinction is needed.
The method provided by the above embodiment can effectively distinguish and transmit information from different HS-DPCCH channels through I/Q multiplexing for a plurality of HS-DPCCH channels on the same carrier frequency without modifying coding and transmission formats, for example, feeding back PCI, CQI and ACK/NACK indication information through the HS-DPCCH channels, for the case that the uplink and downlink carrier frequencies are asymmetric.
Another embodiment of the present invention further provides an information transmission method in a multi-carrier system, as shown in fig. 3, the method may include:
s301, establishing HS-DPCCH channel on uplink.
And S302, distributing the established HS-DPCCH channel of the uplink to an uplink carrier frequency.
The execution processes of S301 and S302 are substantially the same as those of S101 and S102, and are not described herein again.
S303, the information on a plurality of HS-DPCCH channels on the same uplink carrier frequency is distinguished by scrambling codes.
In order to distinguish information from different HS-DPCCH channels, at least one scrambling code can be configured for users, the information on the HS-DPCCH channels is spread according to the prior art and is transmitted after being scrambled by using the configured scrambling code, wherein the scrambling code configured by each user is different and is used for distinguishing data from different users.
There may be many different situations after the user is configured with at least one scrambling code, and the information on the HS-DPCCH channel is spread according to the prior art and scrambled with the configured scrambling code, for example:
assuming that there are M carrier frequencies on the uplink and N carrier frequencies on the downlink, where N > M,
1. two scrambling codes are configured for each user, and for M HS-DPCCH channels with corresponding uplink carrier frequencies, the information of the channels can be spread on the corresponding uplink carrier frequencies according to the existing mode and transmitted after being scrambled by the first scrambling code 1. For the redundant N-M HS-DPCCH channels, their information may be scrambled with the second scrambling code 2, as long as the scrambling codes of the HS-DPCCH channels on the same carrier frequency are different. For example, when M is 2, one available carrier frequency selection method may use the following principle:
a. the information on the M +1 th HS-DPCCH channel is transmitted on the uplink carrier frequency 1;
b. the information on the M +2 HS-DPCCH channel is transmitted on the uplink carrier frequency 2;
c. the information on the M +3 HS-DPCCH channel is transmitted on the uplink carrier frequency 1;
d. and so on.
In this case, it may happen that more than 1HS-DPCCH channel on one or some uplink carrier frequencies transmit information using the same scrambling code, and these channels may be distinguished by different spreading codes. The spreading code is selected by using different spreading codes for different HS-DPCCH channels. For example, in a scene that one carrier frequency (f1) exists in an uplink and 3 carrier frequencies (f1/f2/f3) exist in a downlink, information on the HS-DPCCH corresponding to f1 can be transmitted after being scrambled by using scrambling code 1 after being spread, the other two HS-DPCCH channels are transmitted on f1 after being scrambled by using scrambling code 2, but different channel codes can be used for spreading in order to distinguish the two channels.
2. And configuring N-M +1 scrambling codes for each user, wherein for M HS-DPCCH channels with corresponding uplink carrier frequencies, the information of the M HS-DPCCH channels can be transmitted after being spread on the corresponding uplink carrier frequencies according to the existing mode and scrambled by the scrambling code 1. For redundant N-M HS-DPCCH channels, information on each HS-DPCCH channel can be transmitted after being scrambled by using different scrambling codes.
It should be noted that the scrambling codes configured for the user may be not only 2 or N-M +1, but also other schemes, for example, a number between 2 and N-M +1 may be used in combination with the spreading codes, as long as it is ensured to distinguish information on different HS-DPCCH channels.
S304, information on the HS-DPCCH channel is transmitted.
After the information on the HS-DPCCH channel is spread according to the prior art and scrambled by using the configured scrambling code, the scrambled information is transmitted.
The method provided by the above embodiment can effectively distinguish and transmit information from different HS-DPCCH channels by scrambling with scrambling codes for a plurality of HS-DPCCH channels on the same carrier frequency without modifying coding and transmission formats, for example, feeding back PCI, CQI and ACK/NACK indication information through the HS-DPCCH channels, for the case that the uplink and downlink carrier frequencies are asymmetric.
In all the above embodiments of the method, for allocating N HS-DPCCH channels on the uplink to M uplink carrier frequencies, each carrier frequency may be allocated with at least one HS-DPCCH channel, the following scheme may be adopted:
n is integer multiple of M, and N HS-DPCCH channels are evenly distributed to M uplink carrier frequencies, namely N/M HS-DPCCH channels are arranged on each uplink carrier frequency;
and 2, N is not an integral multiple of M, if N is k multiplied by M + i, k is an integer larger than 1, and i is an integer larger than 1 and smaller than M, at least k HS-DPCCH channels are distributed on each uplink carrier frequency, and redundant i HS-DPCCH channels are distributed on any i uplink carrier frequencies or redundant i HS-DPCCH channels are distributed on any one or more carrier frequencies.
It should be noted that, when allocating N HS-DPCCH channels to M uplink carrier frequencies, the allocation may also be performed according to the actual situation (for example, the number of currently allocated physical channels) of each carrier frequency, some carrier frequencies may be allocated with multiple HS-DPCCH channels, and some carrier frequencies may not be allocated with HS-DPCCH channels.
An embodiment of the present invention provides an information transmission apparatus in a multi-carrier system, as shown in fig. 4, the apparatus may include:
a channel establishing unit 401, configured to establish an HS-DPCCH channel on an uplink, where the number of the established HS-DPCCH channels is the same as the number of downlink carrier frequencies, the number of uplink carrier frequencies M is less than N, and M and N are all non-zero positive integers;
an allocating unit 402, configured to allocate the HS-DPCCH channel established by the channel establishing unit 401 to an uplink carrier frequency;
a processing unit 403, configured to, after the allocating unit 402 allocates uplink carrier frequencies to all HS-DPCCH channels, if one carrier frequency has more than one HS-DPCCH channel, distinguish information on the HS-DPCCH channels on the carrier frequency;
a transmission unit 404 for transmitting information on the N HS-DPCCH channels.
Another embodiment of the present invention further provides an information transmission apparatus in a multi-carrier system, as shown in fig. 5, the apparatus may include:
a channel establishing unit 501, configured to establish an HS-DPCCH channel on an uplink, where the number of the established HS-DPCCH channels is the same as the number of downlink carrier frequencies, the number of uplink carrier frequencies M is less than N, and M and N are all non-zero positive integers;
an allocating unit 502, configured to allocate the HS-DPCCH channel established by the channel establishing unit 501 to an uplink carrier frequency;
a processing unit 503, configured to distinguish information on the HS-DPCCH channels on a carrier frequency if there is more than one HS-DPCCH channel on the carrier frequency after the allocation unit 502 allocates uplink carrier frequencies to all HS-DPCCH channels;
a transmission unit 504 for transmitting information on the N HS-DPCCH channels.
Among them, the processing unit 503 may include:
a multiplexing subunit 5031, configured to, after the allocating unit 502 allocates uplink carrier frequencies to all HS-DPCCH channels, distinguish information on different HS-DPCCH channels on the same uplink carrier frequency through I/Q multiplexing;
further, the processing unit 503 may further include:
a selecting sub-unit 5032, when the multiplexing sub-unit 5031 performs I/Q multiplexing on the information on different HS-DPCCH channels, is configured to select a branch with lower power according to the principle of I/Q total power balance, and allocate the HS-DPCCH channel on the branch with lower power.
Another embodiment of the present invention further provides an apparatus for transmitting information in a multi-carrier system, as shown in fig. 6, the apparatus may include:
a channel establishing unit 601, configured to establish HS-DPCCH channels on an uplink, where the number of the established HS-DPCCH channels is the same as the number of downlink carrier frequencies, the number of uplink carrier frequencies M is less than N, and M and N are all non-zero positive integers;
an allocating unit 602, configured to allocate the HS-DPCCH channel established by the channel establishing unit 601 to an uplink carrier frequency;
a processing unit 603, configured to distinguish information on HS-DPCCH channels on a carrier frequency if there is more than one HS-DPCCH channel on the carrier frequency after the allocating unit 602 allocates uplink carrier frequencies to all HS-DPCCH channels;
a transmission unit 604 for transmitting information on the N HS-DPCCH channels.
Wherein, the processing unit 603 may include:
a channel code subunit 6031, configured to, after the allocating unit 602 allocates uplink carrier frequencies to all HS-DPCCH channels, distinguish information on different HS-DPCCH channels on the same uplink carrier frequency by using different channel codes.
Another embodiment of the present invention further provides an information transmission apparatus in a multi-carrier system, as shown in fig. 7, the apparatus may include:
a channel establishing unit 701, configured to establish an HS-DPCCH channel on an uplink, where the number of the established HS-DPCCH channels is the same as the number of downlink carrier frequencies, the number of uplink carrier frequencies M is less than N, and M and N are all non-zero positive integers;
an allocating unit 702, configured to allocate the HS-DPCCH channel established by the channel establishing unit 701 to an uplink carrier frequency;
a processing unit 703, configured to distinguish information on the HS-DPCCH channels on a carrier frequency if there is more than one HS-DPCCH channel on the carrier frequency after the allocation unit 702 allocates uplink carrier frequencies to all HS-DPCCH channels;
a transmission unit 704 for transmitting information on the N HS-DPCCH channels.
The processing unit 703 may include:
a scrambling subunit, configured to distinguish information on the HS-DPCCH channel on the uplink carrier frequency by scrambling with a scrambling code after the allocating unit 702 allocates the uplink carrier frequency to all HS-DPCCH channels.
Further, when there is a situation that more than 1HS-DPCCH channel on one or some uplink carrier frequencies uses the same scrambling code to transmit information, the processing unit 703 may further include:
spreading code subunit 7032 distinguishes information on different HS-DPCCH channels using the same scrambling code on the same uplink carrier frequency by using different spreading codes.
To sum up, the method and apparatus provided in the embodiments of the present invention can effectively distinguish and transmit information from different HS-DPCCH channels by scrambling using a scrambling code or using different channel codes, or by I/Q multiplexing, on the premise that the coding and transmission formats are not modified, for the case that the uplink and downlink carrier frequencies are asymmetric, for example, feeding back PCI, CQI, and ACK/NACK indication information through the HS-DPCCH channels.
Those skilled in the art will appreciate that the process of implementing the operation mode of the control information feedback in the above embodiments may be implemented by hardware related to program instructions, and the program may be stored in a readable storage medium, and when executed, the program performs corresponding steps in the above method. The storage medium may be as follows: ROM/RAM, magnetic disk, optical disk, etc.
It will be apparent to those skilled in the art that various changes and modifications may be made in the embodiments of the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (9)
1. An information transmission method in a multi-carrier system, wherein when the number of uplink and downlink carrier frequencies is different, the method comprises:
establishing a high-speed dedicated physical control channel HS-DPCCH on an uplink, wherein the number of the established HS-DPCCH channels is the same as the number N of downlink carrier frequencies, the number M of the uplink carrier frequencies is less than N, and M and N are all non-zero positive integers;
allocating the HS-DPCCH channel of the uplink to the uplink carrier frequency;
if one uplink carrier frequency is larger than one HS-DPCCH channel, distinguishing information on a plurality of HS-DPCCH channels on the carrier frequency;
transmitting the information on the N HS-DPCCH channels;
wherein,
the information on the HS-DPCCH channel comprises: precoding Control Information (PCI), Channel Quality Indicator (CQI) and acknowledgement/non-acknowledgement indicator (ACK/NACK);
the distinguishing of the information on the plurality of HS-DPCCH channels on the carrier frequency comprises:
the information on different HS-DPCCH channels on the same uplink carrier frequency is distinguished by using different channel codes; or,
information on different HS-DPCCH channels on the same uplink carrier frequency is distinguished through I/Q multiplexing; or,
and the information on different HS-DPCCH channels on the same uplink carrier frequency is distinguished by scrambling with a scrambling code.
2. The method of claim 1, wherein the distinguishing information on different HS-DPCCH channels on the same uplink carrier frequency by I/Q multiplexing comprises:
if the channel codes on the I path or the Q path do not conflict, the same channel codes are used for the information on the HS-DPCCH for I/Q path multiplexing on the same uplink carrier frequency, and if the channel codes on the I path or the Q path conflict, the idle channel codes on the corresponding branches are used for the information on the HS-DPCCH for I/Q path multiplexing on the same uplink carrier frequency.
3. The method of claim 2, wherein the distinguishing information on different HS-DPCCH channels on the same uplink carrier frequency by I/Q multiplexing further comprises:
according to the principle of I/Q total power balance, the branch with lower power is selected, and HS-DPCCH channels are distributed on the branch with lower power.
4. The method of claim 3, wherein the distinguishing between information on different HS-DPCCH channels on the same uplink carrier frequency using scrambling code scrambling comprises:
scrambling information on different HS-DPCCH channels on the same uplink carrier frequency by using different scrambling codes according to the scrambling codes configured for the users; or,
according to the scrambling codes configured for users, the information on different HS-DPCCH channels using the same scrambling code on the same uplink carrier frequency is distinguished by using different spreading codes.
5. The method of claim 1, wherein the allocating the HS-DPCCH channel for the uplink on the uplink carrier frequency comprises: and at least one HS-DPCCH channel is distributed on each uplink carrier frequency.
6. The method of claim 5, wherein allocating at least one of the HS-DPCCH channels on each uplink carrier frequency comprises:
if N is an integral multiple of M, the N HS-DPCCH channels are evenly distributed to the M uplink carrier frequencies; or
If N is not an integral multiple of M, setting N to k multiplied by M + i, k being an integer greater than or equal to 1, and i being an integer greater than 1 and less than M, at least k HS-DPCCH channels are distributed on each uplink carrier frequency, and the redundant i HS-DPCCH channels are evenly distributed on any i uplink carrier frequencies or any one or more uplink carrier frequencies.
7. An apparatus for transmitting information in a multi-carrier system, the apparatus comprising:
the system comprises a channel establishing unit, a channel selecting unit and a channel selecting unit, wherein the channel establishing unit is used for establishing a high-speed dedicated physical control channel (HS-DPCCH) on an uplink, the number of the established HS-DPCCH is the same as the number N of downlink carrier frequencies, the number M of the uplink carrier frequencies is less than N, and M and N are all non-zero positive integers;
the distribution unit is used for distributing the HS-DPCCH channel established by the channel establishing unit to an uplink carrier frequency;
the processing unit is used for distinguishing the information on a plurality of HS-DPCCH channels on a carrier frequency if one carrier frequency is larger than one HS-DPCCH channel after the distribution unit distributes uplink carrier frequencies to all the HS-DPCCH channels;
a transmission unit, configured to transmit information on the N HS-DPCCH channels;
wherein,
the information on the HS-DPCCH channel comprises: precoding Control Information (PCI), Channel Quality Indicator (CQI) and acknowledgement/non-acknowledgement indicator (ACK/NACK);
the processing unit includes:
the multiplexing subunit is used for distinguishing the information on different HS-DPCCH channels on the same uplink carrier frequency through I/Q multiplexing; or, the channel code subunit is used for distinguishing the information on different HS-DPCCH channels on the same uplink carrier frequency by using different channel codes; or, the scrambling subunit is used for distinguishing the information on different HS-DPCCH channels on the same uplink carrier frequency by scrambling.
8. The apparatus of claim 7, wherein the processing unit further comprises:
and the selection subunit is used for selecting the branch with lower power according to the principle of I/Q total power balance when the multiplexing subunit performs I/Q path multiplexing on information on different HS-DPCCH channels on the same uplink carrier frequency, and distributing the HS-DPCCH channels on the branch with lower power.
9. The apparatus of claim 7, wherein the processing unit further comprises:
and the spread spectrum code subunit is used for distinguishing the information on different HS-DPCCH channels using the same scrambling code on the same uplink carrier frequency by using different spread spectrum codes.
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| CN 200810065882 CN101540632B (en) | 2008-03-20 | 2008-03-20 | Method and device for transmitting information in multi-carrier system |
| PCT/CN2009/070868 WO2009115044A1 (en) | 2008-03-20 | 2009-03-18 | Method and apparatus for information transmission in the multi-carrier system |
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| US10211962B2 (en) | 2009-01-24 | 2019-02-19 | Huawei Technologies Co., Ltd. | Method and apparatus for allocating resources and processing confirmation information |
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| WO2011074885A2 (en) | 2009-12-16 | 2011-06-23 | 엘지전자 주식회사 | Method and apparatus for reporting a channel quality in a wireless communication system |
| USRE48709E1 (en) | 2009-12-16 | 2021-08-24 | Qualcomm Incorporated | Method and apparatus for reporting a channel quality in a wireless communication system |
| EP2451104B1 (en) * | 2010-11-05 | 2017-06-28 | Alcatel Lucent | Network nodes and methods |
| CN106301690B (en) * | 2011-04-20 | 2020-01-21 | 华为技术有限公司 | Method and device for transmitting and receiving control information |
| US9608764B2 (en) * | 2014-12-11 | 2017-03-28 | Qualcomm Incorporated | Uplink data routing during multiple carrier power imbalance |
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| CN1885759A (en) * | 2005-06-23 | 2006-12-27 | 上海原动力通信科技有限公司 | Multi-carrier HSDPA control channel distributing method and packet data transmission method |
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| US9143288B2 (en) * | 2006-07-24 | 2015-09-22 | Qualcomm Incorporated | Variable control channel for a wireless communication system |
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| CN1734993A (en) * | 2000-02-02 | 2006-02-15 | 株式会社Ntt都科摩 | Single-carrier/ds-cdma uplink packet transmitting method in multi carrier/ds-cdma mobile communication system |
| CN1885759A (en) * | 2005-06-23 | 2006-12-27 | 上海原动力通信科技有限公司 | Multi-carrier HSDPA control channel distributing method and packet data transmission method |
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