CN106034009B - A kind of transmission method of physical layer control channel, base station and terminal - Google Patents
A kind of transmission method of physical layer control channel, base station and terminal Download PDFInfo
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- CN106034009B CN106034009B CN201510113981.5A CN201510113981A CN106034009B CN 106034009 B CN106034009 B CN 106034009B CN 201510113981 A CN201510113981 A CN 201510113981A CN 106034009 B CN106034009 B CN 106034009B
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Abstract
The present invention provides a kind of transmission method of physical layer control channel, base station and terminals, wherein, the transmission method of physical layer control channel is applied to base station, transmission method includes: to send the second physical layer control channel parameter sets to terminal, it wherein, include at least one second physical layer control channel parameter in the second physical layer control channel parameter sets；The first physical layer control channel is sent to the terminal, includes the second physical layer control channel parameter instruction information in first physical layer control channel；The second physical layer control channel is sent to the terminal.The present invention improves the capacity of physical layer control channel, reduces service disconnection probability.
Description
Technical field
The present invention relates to mobile communication field, more particularly, to a kind of transmission method of physical layer control channel, base station and
Terminal.
Background technique
The following mobile data services rapid development, the demand that hot zones increase the flow for facing 500-1000 times.Solution
Certainly the demand of ultra high flux is one of the main target of the 5th Generation Mobile Communication System.Super-intensive network can be obviously improved hot spot
The flow in area, the basic technique principle at super-intensive network is: increasing the density of small base station in unit area, by heterogeneous network
Ultra-large low power nodes are introduced in network, are realized hot spot enhancing, are eliminated blind spot, improve the network coverage, improve power system capacity.It is super
Dense network can bring capacity at double to increase, but with the increase of cell density, whole network topology becomes more multiple
It is miscellaneous, it inevitably brings the problems such as serious interference problem, mobile management problem, actual deployment and operation and chooses
War.
A major issue being directed to is exactly the physical layer control channel transmission problem in super-intensive cell.Super
In intensive cell, since cell density increases, terminal UE needs frequently to switch between cell in the process of moving, frequency
Numerous switching will increase the cutting off rate of mobile terminal, reduce user experience.For a kind of existing solution of this problem
It is that physical layer control channel (the downlink physical control channel PDCCH in such as LTE system) is sent by macro base station, micro-base station sends object
Manage layer service channel (downlink physical in such as LTE system shares channel PDSCH).The program can make UE between cell
When mobile, the sending node of physical layer control channel does not change, and the sending node of only Physical Layer Service channel changes
Become, so as to avoid the switching of physical layer control channel, the cutting off rate of UE can be reduced.
But in super-intensive cell scenario, the density of user is generally also larger, and a large number of users needs to be serviced by base station simultaneously,
Therefore also very big to the capacity requirement of physical layer control channel, if physical layer control channel is all sent by macro base station, it is difficult full
The demand of all users of foot.
As shown in Figure 1, being the transmission method schematic diagram of the existing physical layer control channel of super-intensive cell scenario, this method
Are as follows: it uses enhanced physical layer control channel (the enhancing downlink physical control channel ePDCCH of LTE system), compared with PDCCH,
Time-frequency domain resources more more than PDCCH can be used in ePDCCH, and ePDCCH can also be sent by micro-base station, to provide more
Physical layer control channel capacity.But the base station for sending ePDCCH is to be matched by the serving cell of UE by the way that high-level signaling is semi-static
It sets, if the base station for sending ePDCCH changes, serving cell needs again to configure UE.And in super-intensive cell
In, due to the movement of UE, the base station for sending ePDCCH will be than more frequently changing, will according to existing technical solution
It will lead to frequent high-level signaling reconfiguration, and lead to lower efficiency of transmission and biggish high-level signaling expense.
Summary of the invention
In order to improve the capacity of physical layer control channel, service disconnection probability is reduced, the present invention provides a kind of physical layers
Transmission method, base station and the terminal of control channel.
To achieve the goals above, the present invention provides a kind of transmission methods of physical layer control channel, are applied to base station,
The transmission method includes: to send the second physical layer control channel parameter sets to terminal, wherein the second physical layer control
It include at least one second physical layer control channel parameter in channel parameter set；The first physical layer control is sent to the terminal
Channel processed includes the second physical layer control channel parameter instruction information in first physical layer control channel；To the end
End sends the second physical layer control channel.
Optionally, in the step of sending the second physical layer control channel parameter sets to terminal, include to terminal transmission
There are the second physical layer control channel parameter sets of N number of second physical layer control channel parameter, wherein N is expressed as whole greater than 0
Number；In the step of sending the first physical layer control channel to the terminal, the transmission of Xiang Suoshu terminal includes ceil (log2
(N)) the first physical layer control channel of bit the second physical layer control channel parameter instruction information, wherein ceil ()
It indicates to return to the smallest positive integral for being more than or equal to specified expression formula.
Optionally, in the step of sending the second physical layer control channel parameter sets to terminal, include to terminal transmission
There is the second physical layer control of the second physical layer control channel parameter of N number of second physical layer control channel parameter and M default
Channel parameter set, wherein M indicates to be greater than 0 integer, and M < N；The first physical layer control channel is being sent to the terminal
The step of in, Xiang Suoshu terminal transmission include ceil (log2 (N-M)) bit the second physical layer control channel parameter instruction letter
First physical layer control channel of breath, wherein ceil () indicates to return to the smallest positive integral for being more than or equal to specified expression formula.
Optionally, in the step of sending the first physical layer control channel to the terminal, the first physical layer control
It further include the active information or deactivation information for having the second physical layer control channel parameter in channel.
Optionally, in the step of sending the first physical layer control channel to the terminal, the first physical layer control
It further include the duration for having the second physical layer control channel parameter in channel.
According to another aspect of the invention, a kind of transmission method of physical layer control channel is additionally provided, is applied to eventually
End, the transmission method include: to receive the second physical layer control channel parameter sets, wherein the second physical layer control letter
It include at least one second physical layer control channel parameter in road parameter sets；The first physical layer control channel is received, it is described
It include the second physical layer control channel parameter instruction information in first physical layer control channel, and according to second physical layer
Control channel parameter instruction information and the second physical layer control channel parameter sets determine that the second physical layer control channel is joined
Number；Second physical layer control channel is received according to the second physical layer control channel parameter.
Optionally, the step of receiving the second physical layer control channel parameter sets and receiving the first physical layer control channel
In, the second physical layer control channel parameter sets and first physical layer control channel are received from first base station respectively；
In the step of receiving the second physical layer control channel according to the second physical layer control channel parameter, from first base station or the
Two base stations receive second physical layer control channel.
Optionally, in the step of receiving the second physical layer control channel parameter sets, reception includes N number of second physics
Second physical layer control channel parameter sets of layer control channel parameter, wherein N indicates to be greater than 0 integer；Receiving the first object
In the step of managing layer control channel, reception includes ceil (log2 (N)) bit the second physical layer control channel parameter instruction letter
First physical layer control channel of breath, wherein ceil () indicates to return to the smallest positive integral for being more than or equal to specified expression formula.
Optionally, in the step of receiving the second physical layer control channel parameter sets, reception includes N number of second physics
Second physical layer control channel parameter sets of the second physical layer control channel parameter of layer control channel parameter and M default,
Wherein, M indicates to be greater than 0 integer, and M < N；In the step of receiving the first physical layer control channel, reception includes ceil
First physical layer control channel of (log2 (N-M)) bit the second physical layer control channel parameter instruction information, wherein ceil
() indicates to return to the smallest positive integral for being more than or equal to specified expression formula.
Optionally, after the step of receiving the first physical layer control channel, the transmission method further include: judge described
In one physical layer control channel whether include the second physical layer control channel parameter active information or deactivate information, if including
Active information then receives second physical layer all in accordance with the second physical layer control channel parameter at the current and later moment
Control channel；If not joined according to second physical layer control channel including deactivating information at the current and later moment
Number receives second physical layer control channel.
Optionally, after the step of receiving the first physical layer control channel, the transmission method further include: judge described
In one physical layer control channel whether include the second physical layer control channel parameter duration, if the determination result is YES,
The second physical layer control is then received according to the second physical layer control channel parameter within the current and later duration
Channel processed.
According to another aspect of the invention, a kind of base station for being used for transmission physical layer control channel is additionally provided, it is described
Base station includes: the first sending module, for sending the second physical layer control channel parameter sets to terminal, wherein described second
It include at least one second physical layer control channel parameter in physical layer control channel parameter sets；Second sending module is used
It include the second physical layer control in first physical layer control channel in sending the first physical layer control channel to the terminal
Channel parameter processed indicates information；Third sending module, for sending the second physical layer control channel to the terminal.
Optionally, it includes the of N number of second physical layer control channel parameter that first sending module is sent to terminal
Two physical layer control channel parameter sets, wherein N is expressed as the integer greater than 0；Second sending module is sent out to the terminal
Send include ceil (log2 (N)) bit the second physical layer control channel parameter instruction information the first physical layer control channel,
Wherein, wherein ceil () indicates to return to the smallest positive integral for being more than or equal to specified expression formula.
Optionally, it includes N number of second physical layer control channel parameter and M that first sending module is sent to terminal
Second physical layer control channel parameter sets of the second physical layer control channel parameter of default, wherein M indicates whole greater than 0
Number, and M < N；It includes ceil (log2 (N-M)) second physical layer of bit that second sending module is sent to the terminal
First physical layer control channel of control channel parameter instruction information, wherein ceil () is indicated to return to be more than or equal to and be specified
The smallest positive integral of expression formula.
It optionally, further include having the second physical layer control in the first physical layer control channel that second sending module is sent
The active information of channel parameter processed deactivates information.
It optionally, further include having the second physical layer control in the first physical layer control channel that second sending module is sent
The duration of channel parameter processed.
According to another aspect of the invention, a kind of terminal for being used for transmission physical layer control channel is additionally provided, it is described
Terminal includes: the first receiving module, for receiving the second physical layer control channel parameter sets, wherein second physical layer
It include at least one second physical layer control channel parameter in control channel parameter sets；Second receiving module, for receiving
First physical layer control channel includes the second physical layer control channel parameter instruction letter in first physical layer control channel
Breath, and indicate that information and the second physical layer control channel parameter sets are true according to the second physical layer control channel parameter
Fixed second physical layer control channel parameter；Third receiving module, for being received according to the second physical layer control channel parameter
Second physical layer control channel.
Optionally, first receiving module is also used to receive the second physical layer control channel parameter from first base station
Set；Second receiving module is also used to receive first physical layer control channel from first base station；The third receives
Module is also used to receive the second physical layer control channel from first base station or the second base station.
Optionally, the first receiving module reception includes the second physics of N number of second physical layer control channel parameter
Layer control channel parameter sets, wherein N indicates to be greater than 0 integer；The second receiving module reception includes ceil (log2
(N)) the first physical layer control channel of bit the second physical layer control channel parameter instruction information, wherein ceil () expression is returned
Return the smallest positive integral for being more than or equal to specified expression formula.
Optionally, it includes N number of second physical layer control channel parameter and M default that first receiving module, which receives,
Second physical layer control channel parameter sets of the second physical layer control channel parameter, wherein M indicates to be greater than 0 integer, and M
< N；The second receiving module reception includes the instruction of ceil (log2 (N-M)) bit the second physical layer control channel parameter
First physical layer control channel of information, wherein ceil (), which indicates to return, is more than or equal to the minimum whole of specified expression formula
Number.
Optionally, the terminal further includes first judgment module, is in first physical layer control channel for judging
It is no to include the active information of the second physical layer control channel parameter or deactivate information, if including active information, current and
The later moment receives second physical layer control channel all in accordance with the second physical layer control channel parameter；If including deactivating
Information living does not then receive second physical layer according to the second physical layer control channel parameter at the current and later moment
Control channel.
Optionally, the terminal further includes the second judgment module, is in first physical layer control channel for judging
No includes the duration of the second physical layer control channel parameter, if the determination result is YES, is then continued in current and later
Second physical layer control channel is received according to the second physical layer control channel parameter in time.
The beneficial effects of the present invention are:
The present invention by first sending the second physical layer control channel parameter sets to terminal, then to terminal transmission include the
Two physical layer control channel parameters indicate the first physical layer control channel of information, believe so that terminal is controlled according to the second physical layer
Road parameter instruction information and the second physical layer control channel parameter sets determine the second physical layer control channel parameter；Finally to end
End sends the second physical layer control channel, so that terminal receives the second physics according to the second obtained physical layer control channel parameter
Layer control channel.The second physical layer control channel parameter instruction letter can be only included in the present invention in first physical layer control channel
Breath, and the second physical layer control channel parameter is determined by the second physical layer control channel parameter instruction information, therefore, significant
The capacity requirement for reducing the first physical layer control channel while, reduce the service disconnection probability of terminal；In addition, terminal
The second physical layer control channel is received according to the second determining physical layer control channel parameter, improves the second physical layer control letter
The capacity in road.
Detailed description of the invention
Fig. 1 shows the transmission method schematic diagrames of the existing physical layer control channel of super-intensive cell scenario；
Fig. 2 indicates the key step for being applied to the transmission method of the physical layer control channel of base station in the embodiment of the present invention
Flow chart；
Fig. 3 indicates the key step in the embodiment of the present invention applied to the transmission method of the physical layer control channel of terminal
Flow chart；
Fig. 4 indicates the structural block diagram that the base station of physical layer control channel is used for transmission in the embodiment of the present invention；And
Fig. 5 indicates the structural block diagram that the terminal of physical layer control channel is used for transmission in the embodiment of the present invention.
Specific embodiment
Exemplary embodiments of the present disclosure are described in more detail below with reference to accompanying drawings.Although showing the disclosure in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
It is fully disclosed to those skilled in the art.
It should be noted that the base station occurred in the present invention can be the corresponding base station of cell, enhanced base station
(eNodeB), micro-base station, family type base station, Remote Radio Unit (RRU, Remote Radio Unit), remote radio front end
Any one in the set that (RRH, Remote Radio Head), relay node and above-mentioned entity are made into, but need
Bright, which is not limited to above several.
As shown in Fig. 2, to be applied to the master of the transmission method of the physical layer control channel of base station in the embodiment of the present invention
Flow chart of steps is wanted, is mainly included the following steps:
Step S101 sends the second physical layer control channel parameter sets, the second physical layer control channel parameter to terminal
It include at least one second physical layer control channel parameter in set.
In the present embodiment, base station sends the second physical layer control channel parameter sets, the second physical layer control to terminal
It include at least one second physical layer control channel parameter in channel parameter set processed.Specifically, base station passes through high-level signaling
The second physical layer control channel parameter sets including at least one the second physical layer control channel parameter are sent to terminal.
Specifically, the second physical layer control channel parameter can be the time-frequency domain for carrying the second physical layer control channel
Resource information, the formation sequence mark for demodulating pilot tone, is used to carry the second physics the transmission mode of the second physical layer control channel
The resource element location information in a resource unit of layer control channel and with the quasi- co-located reference of the second physical layer control channel
At least one of signal configuration information.In the following, being illustrated to several second physical layer control channel parameters therein.
Time-frequency domain resources information for carrying the second physical layer control channel is illustrated, such as carrying
The sub-frame set of second physical layer control channel, for carrying first symbol of the second physical layer control channel in a subframe
Position in the burst, for carrying the resource block size of the second physical layer control channel and for carrying the second physical layer control
The resource block location information of channel processed.The transmission mode of second physical layer control channel is illustrated.The control of second physical layer
The transmission mode of channel includes centralized and distributed, wherein centralization refers to the control channel in the second physical layer control channel
Element occupy time-frequency domain resources be it is continuously distributed, distribution refer to that the control channel element in the second physical layer control channel accounts for
It is non-continuously distributed with time-frequency domain resources.The quasi- co-located reference signal configuration information of second physical layer control channel is said
It is bright.The quasi- co-located reference signal of second physical layer control channel is used for so that terminal determines when receiving the second physical layer control channel
Required large scale channel characteristics, such as time extension, doppler spread, Doppler frequency shift, average gain, average delay
Deng.
Specifically, may include thering is N number of second physical layer control channel to join in the second physical layer control channel parameter sets
Number；Likewise, can also simultaneously include N number of second physical layer control channel ginseng in the second physical layer control channel parameter sets
Second physical layer control channel parameter of number and M default, wherein N and M is the integer greater than 0.
Step S102 sends the first physical layer control channel to terminal, includes second in the first physical layer control channel
Physical layer control channel parameter indicates information.
In the present embodiment, base station sends the first physical layer control channel to terminal, in first physical layer control channel
Include the second physical layer control channel parameter instruction information, is used to indicate its in the second physical layer control channel parameter sets
In a second physical layer control channel parameter, allow terminal according to the second physical layer control channel parameter indicate information it is true
Fixed second physical layer control channel parameter.
Specifically, being controlled by the second physical layer for including in the second physical layer control channel parameter sets in step 101
The number of channel parameter can determine the second physical layer control letter included in the first physical layer control channel of base station transmission
The bit number of road parameter instruction information.It include N number of second physical layer control letter in second physical layer control channel parameter sets
Road parameter, i.e. base station are joined to the second physical layer control channel that terminal transmission includes N number of second physical layer control channel parameter
Manifold is closed, then including ceil (log2 (N)) bit the second physical layer control channel parameter in the first physical layer control channel
Indicate information, i.e. base station includes that the instruction of ceil (log2 (N)) bit the second physical layer control channel parameter is believed to terminal transmission
First physical layer control channel of breath indicates that second physical layer in the second physical layer control channel parameter sets controls letter
Road parameter, wherein ceil () indicates that return is more than or equal to the smallest positive integral of specified expression formula, and N indicates to be greater than 0 integer.
In the following, being illustrated to above situation citing.
It include 4 the second physical layer control channels ginsengs assuming that N=4, i.e. in the second physical layer control channel parameter sets
Number, then may include having ceil (log2 (4)) i.e. 2 the second physical layer control channels of bit ginseng in the first physical layer control channel
Number instruction information.As shown in the table 1 in following, the second physical layer control channel parameter when being N=4 indicates information and the second object
Manage the mapping table of layer control channel parameter.
Table 1
| Second physical layer control channel parameter indicates information | Second physical layer control channel parameter |
| 00 | Second physical layer control channel parameter 0 |
| 01 | Second physical layer control channel parameter 1 |
| 10 | Second physical layer control channel parameter 2 |
| 11 | Second physical layer control channel parameter 3 |
As can be seen from Table 1, the second physical layer control channel parameter instruction information of 2 bits can indicate 4 the second objects
Layer control channel parameter is managed, when the second physical layer control channel parameter instruction information is 00, the second physical layer control channel ginseng
Number is the second physical layer control channel parameter 0, and so on.It is worth noting that the second physical layer control channel in table
Parameter is all different.
Specifically, including N number of second physical layer control channel parameter and M in the second physical layer control channel parameter sets
Second physical layer control channel parameter of a default, i.e. base station include that N number of second physical layer control channel is joined to terminal transmission
Second physical layer control channel parameter sets of the second physical layer control channel parameter of number and M default, then the first physics
Layer control channel in include ceil (log2 (N-M)) bit the second physical layer control channel parameter instruction information, i.e., base station to
Terminal sends the first physical layer control including ceil (log2 (N-M)) bit the second physical layer control channel parameter instruction information
Channel processed, a second physical layer control channel parameter being used to indicate in the second physical layer control channel parameter sets, wherein
Ceil () indicates that return is more than or equal to the smallest positive integral of specified expression formula, and M indicates to be greater than 0 integer, and M < N.In the following,
Above situation citing is illustrated.
It include 5 the second physical layers control letters assuming that N=5, M=1, i.e. in the second physical layer control channel parameter sets
Second physical layer control channel parameter of road parameter and 1 default, then may include in the first physical layer control channel parameter
There are i.e. 2 bit the second physical layer control channel parameters of ceil (log2 (5-1)) bit to indicate information.Such as 2 institute of table in following
Show, is N=5, pair of the second physical layer control channel parameter instruction information and the second physical layer control channel parameter when M=1
Answer relation table.
Table 2
| Second physical layer control channel parameter indicates information | Second physical layer control channel parameter |
| 00 | Second physical layer control channel parameter 1 |
| 01 | Second physical layer control channel parameter 2 |
| 10 | Second physical layer control channel parameter 3 |
| 11 | Second physical layer control channel parameter 4 |
As can be seen from Table 2, the second physical layer control channel parameter instruction information of 2 bits can indicate 4 second
Physical layer control channel parameter, when the second physical layer control channel parameter instruction information is 00, the second physical layer control channel
Parameter is the second physical layer control channel parameter 1, and so on.It is worth noting that the second physical layer in table controls letter
Road parameter is all different.In addition, the second physical layer control channel parameter 0 can be the second physical layer control channel ginseng of default
Number.
Specifically, during base station sends the first physical layer control channel to terminal, the first physical layer control channel
In can only include the second physical layer control channel parameter instruction information, if only including second in the first physical layer control channel
Physical layer control channel parameter indicates information, and the capacity requirement of the first physical layer control channel can be significantly reduced.
Preferably, in order to further decrease the capacity requirement of the first physical layer control channel, the first physical layer control channel
In can also include the second physical layer control channel parameter active information or deactivate information, be used to indicate the second physical layer
The validity of control channel parameter.Wherein, when terminal receive include the second physical layer control channel parameter active information
Or when deactivating the first physical layer control channel of information, what terminal judged to include in the first physical layer control channel is the second object
The active information of reason layer control channel parameter still deactivates information, and if active information, then terminal is at the current and later moment
Second physical layer control channel is received all in accordance with the second physical layer control channel parameter；If deactivating information, then terminal
The second physical layer control channel is not received according to the second physical layer control channel parameter at the current and later moment.Further
, it can also include the duration of the second physical layer control channel parameter in the first physical layer control channel, be used to indicate
The effective time of second physical layer control channel parameter.Wherein, when terminal receives second in the first physical layer control channel
When the duration of physical layer control channel parameter is T, then terminal current time and T later moment all in accordance with this
Two physical layer control channel parameters receive the second physical layer control channel.It include the second physics in first physical layer control channel
The duration of layer control channel parameter equally reduces the capacity requirement of the first physical layer control channel.
It should be noted that the base station for sending the first physical layer control channel can be macro base station and be also possible to micro- base
It stands set.In this way, terminal can be made in the small moving between cells that micro-base station is formed, the hair of the first physical layer control channel
Node is sent not change, so as to avoid the switching of the first physical layer control channel, and the service terminal for reducing terminal is general
Rate.
Step S103 sends the second physical layer control channel to terminal.
In the present embodiment, base station sends the second physical layer control channel to terminal, allows terminal according to the second object
It manages layer control channel parameter and receives the second physical layer control channel.Specifically, the second physical layer control channel can mention for terminal
For the control information of Traffic Channel.I.e. terminal can receive Traffic Channel according to the second physical layer control channel.
Specifically, terminal can also be according to the second physical layer control channel parameter of default and the second physical layer control channel
Second physical layer control channel parameter of parameter instruction information configuration is attempted to receive the second physical layer control channel respectively.In this way may be used
When preventing the first physical layer control channel unavailable, terminal still is able to the second physical layer control channel parameter according to default
The second physical layer control channel is received, to reduce the service disconnection probability of terminal.
It should be noted that the base station for sending the first physical layer control channel can be macro base station and be also possible to micro- base
It stands set.Therefore, the second physical layer control channel can be sent by different base stations, in this way with the movement of terminal, send the
The base station of two physical layer control channels can dynamically change, and ensure that terminal has the second physical layer always in the process of moving
Control channel provides the control information of Traffic Channel, reduces the outage probability of terminal traffic.Again due to the of different terminals
Two physical layer control channels can be sent by different base stations, therefore equally improve the capacity of the second physical layer control channel.
In addition, sending the base station of the second physical layer control channel parameter sets and the first physical layer control channel and sending the second physical layer
The base station of control channel can be different, i.e., first base station sends the second physical layer control channel parameter sets and the first physical layer control
Channel processed, the second base station send the second physical layer control channel, it is preferred that first base station can be macro base station, and the second base station can
Micro-base station is thought, in this way, the capacity of physical layer control channel can be improved significantly.
It should be added that, in LTE system, the first physical layer control channel corresponds to PDCCH, the second physics herein
Layer control channel corresponds to ePDCCH.
As shown in figure 3, to be applied to the master of the transmission method of the physical layer control channel of terminal in the embodiment of the present invention
Flow chart of steps is wanted, is mainly included the following steps:
Step S201 receives the second physical layer control channel parameter sets, wherein the second physical layer control channel parameter set
It include at least one second physical layer control channel parameter in conjunction.
In the present embodiment, terminal receives the second physical layer control channel parameter sets that base station is sent, second physics
It include at least one second physical layer control channel parameter in layer control channel parameter sets.
Specifically, the second physical layer control channel parameter can be the time-frequency domain for carrying the second physical layer control channel
Resource information, the formation sequence mark for demodulating pilot tone, is used to carry the second physics the transmission mode of the second physical layer control channel
The resource element location information in a resource unit of layer control channel and with the quasi- co-located reference of the second physical layer control channel
At least one of signal configuration information.In the following, being illustrated to several second physical layer control channel parameters therein.
Time-frequency domain resources information for carrying the second physical layer control channel is illustrated, such as carrying
The sub-frame set of second physical layer control channel, for carrying first symbol of the second physical layer control channel in a subframe
Position in the burst, for carrying the resource block size of the second physical layer control channel and for carrying the second physical layer control
The resource block location information of channel processed.The transmission mode of second physical layer control channel is illustrated.The control of second physical layer
The transmission mode of channel includes centralized and distributed, wherein centralization refers to the control channel in the second physical layer control channel
Element occupy time-frequency domain resources be it is continuously distributed, distribution refer to that the control channel element in the second physical layer control channel accounts for
It is non-continuously distributed with time-frequency domain resources.The quasi- co-located reference signal configuration information of second physical layer control channel is said
It is bright.The quasi- co-located reference signal of second physical layer control channel is used for so that terminal determines when receiving the second physical layer control channel
Required large scale channel characteristics, such as time extension, doppler spread, Doppler frequency shift, average gain, average delay
Deng.
Specifically, may include thering is N number of second physical layer control channel to join in the second physical layer control channel parameter sets
Number；Likewise, can also simultaneously include N number of second physical layer control channel ginseng in the second physical layer control channel parameter sets
Second physical layer control channel parameter of number and M default, wherein N and M is the integer greater than 0.
Step S202 receives the first physical layer control channel, includes the second physical layer in the first physical layer control channel
Control channel parameter indicates information, indicates that information and the second physical layer control channel are joined according to the second physical layer control channel parameter
Manifold, which is closed, determines the second physical layer control channel parameter.
In the present embodiment, terminal receives the first physical layer control channel that base station is sent, first physical layer control letter
Include the second physical layer control channel parameter instruction information in road, is used to indicate in the second physical layer control channel parameter sets
One of them second physical layer control channel parameter.
Specifically, being controlled by the second physical layer for including in the second physical layer control channel parameter sets in step 201
The number of channel parameter can determine the second physical layer control letter included in received first physical layer control channel of terminal
The bit number of road parameter instruction information.It include N number of second physical layer control letter in second physical layer control channel parameter sets
The reception of road parameter, i.e. terminal includes the second physical layer control channel parameter sets of N number of second physical layer control channel parameter,
It include ceil (log2 (N)) bit the second physical layer control channel parameter instruction letter in so the first physical layer control channel
The reception of breath, i.e. terminal includes the first physics of ceil (log2 (N)) bit the second physical layer control channel parameter instruction information
Layer control channel, indicates a second physical layer control channel parameter in the second physical layer control channel parameter sets, wherein
Ceil () indicates that return is more than or equal to the smallest positive integral of specified expression formula, and N indicates to be greater than 0 integer.In the following, to above-mentioned
Situation citing is illustrated.
It include 4 the second physical layer control channels ginsengs assuming that N=4, i.e. in the second physical layer control channel parameter sets
Number, then may include having ceil (log2 (4)) i.e. 2 the second physical layers of bit control letter in the first physical layer control channel parameter
Road parameter indicates information.As shown in Table 1 above, the second physical layer control channel parameter when being N=4 indicates information and the second object
Manage the mapping table of layer control channel parameter.
As can be seen from Table 1, the second physical layer control channel parameter instruction information of 2 bits can indicate 4 the second objects
Layer control channel parameter is managed, when the second physical layer control channel parameter instruction information is 00, the second physical layer control channel ginseng
Number is the second physical layer control channel parameter 0, and so on.It is worth noting that the second physical layer control channel in table
Parameter is all different.
Specifically, including N number of second physical layer control channel parameter and M in the second physical layer control channel parameter sets
The reception of second physical layer control channel parameter of a default, i.e. terminal includes N number of second physical layer control channel parameter and M
Second physical layer control channel parameter sets of the second physical layer control channel parameter of default, then the first physical layer control letter
It include ceil (log2 (N-M)) bit the second physical layer control channel parameter instruction information in road, i.e. terminal reception includes
Ceil (log2 (N-M)) bit the second physical layer control channel parameter indicates the first physical layer control channel of information, for referring to
Show a second physical layer control channel parameter in the second physical layer control channel parameter sets, wherein ceil () expression is returned
The smallest positive integral for being more than or equal to specified expression formula is returned, M indicates to be greater than 0 integer, and M < N.In the following, being lifted to above situation
Example is illustrated.
It include 5 the second physical layers control letters assuming that N=5, M=1, i.e. in the second physical layer control channel parameter sets
Second physical layer control channel parameter of road parameter and 1 default, then may include in the first physical layer control channel parameter
There are i.e. 2 bit the second physical layer control channel parameters of ceil (log2 (5-1)) bit to indicate information.It is N as shown in table 2 above
The corresponding relationship of the second physical layer control channel parameter instruction information and the second physical layer control channel parameter when=5, M=1
Table.
As can be seen from Table 2, the second physical layer control channel parameter instruction information of 2 bits can indicate 4 second
Physical layer control channel parameter, when the second physical layer control channel parameter instruction information is 00, the second physical layer control channel
Parameter is the second physical layer control channel parameter 1, and so on.It is worth noting that the second physical layer in table controls letter
Road parameter is all different.In addition, the second physical layer control channel parameter 0 can be the second physical layer control channel ginseng of default
Number.
It can be with specifically, during terminal receives the first physical layer control channel, in the first physical layer control channel
The second physical layer control channel parameter instruction information is only included, if only including the second physical layer in the first physical layer control channel
Control channel parameter indicates information, and the capacity requirement of the first physical layer control channel can be significantly reduced.
Preferably, in order to further decrease the capacity requirement of the first physical layer control channel, the first physical layer control channel
In can also include the second physical layer control channel parameter active information or deactivate information, be used to indicate the second physical layer
The validity of control channel parameter.Wherein, when terminal receives the first physical layer control channel, judge that the first physical layer controls
Whether channel includes the active information of the second physical layer control channel parameter or deactivates information, if the first physical layer control letter
Include in road is the active information of the second physical layer control channel parameter, then terminal is at the current and later moment all in accordance with second
Physical layer control channel parameter receives the second physical layer control channel；If including deactivating information, terminal it is current and after
Moment does not receive the second physical layer control channel according to the second physical layer control channel parameter.Further, the first physical layer
It can also include the duration of the second physical layer control channel parameter in control channel, be used to indicate the control of the second physical layer
The effective time of channel parameter.Wherein, when terminal receives the first physical layer control channel, judge the first physical layer control letter
In road whether include the second physical layer control channel parameter duration, if including, when current and later lasting
It is interior that second physical layer control channel is received according to the second physical layer control channel parameter.Assuming that in the first physical layer control channel
Including the second physical layer control channel parameter duration be T, then terminal is equal at current time and T later moment
The second physical layer control channel is received according to the second physical layer control channel parameter.Include in first physical layer control channel
The duration of second physical layer control channel parameter equally reduces the capacity requirement of the first physical layer control channel.
Step S203 receives the second physical layer control channel according to the second physical layer control channel parameter.
In the present embodiment, terminal receives the second physical layer control channel that base station is sent, and according to the second physical layer control
Channel parameter processed receives the second physical layer control channel.Specifically, the second physical layer control channel can provide business for terminal
The control information of channel.I.e. terminal can receive Traffic Channel according to the second physical layer control channel.
Specifically, terminal can also be according to the second physical layer control channel parameter of default and the second physical layer control channel
Second physical layer control channel parameter of parameter instruction information configuration is attempted to receive the second physical layer control channel respectively.In this way may be used
When preventing the first physical layer control channel unavailable, terminal still is able to receive the second physical layer control channel, to reduce
The service disconnection probability of terminal.
Preferably, terminal can receive the second physical layer control channel parameter sets and the first physics from first base station respectively
Layer control channel, from the second base station receive the second physical layer control channel, it is preferred that first base station can be macro base station, second
Base station can be micro-base station, in this way, the capacity of physical layer control channel can be improved significantly.
As shown in figure 4, to be used for transmission the structural frames of the base station 300 of physical layer control channel in the embodiment of the present invention
Figure, base station 300 specifically includes that
First sending module 301, for sending the second physical layer control channel parameter sets to terminal, wherein the second object
Managing in layer control channel parameter sets includes at least one second physical layer control channel parameter；Second sending module 302 is used
It include the second physical layer control channel ginseng in the first physical layer control channel in sending the first physical layer control channel to terminal
Number instruction information；Third sending module 303, for sending the second physical layer control channel to terminal.
Optionally, it includes the second of N number of second physical layer control channel parameter that the first sending module 301 is sent to terminal
Physical layer control channel parameter sets, wherein N is expressed as the integer greater than 0；Second sending module 302 is sent to terminal
There is the first physical layer control channel of ceil (log2 (N)) bit the second physical layer control channel parameter instruction information, wherein its
In, ceil () indicates to return to the smallest positive integral for being more than or equal to specified expression formula.
Optionally, it includes N number of second physical layer control channel parameter and M that the first sending module 301 is sent to terminal
Second physical layer control channel parameter sets of the second physical layer control channel parameter of default, wherein M indicates whole greater than 0
Number, and M < N；Second sending module 302 includes that the control of ceil (log2 (N-M)) the second physical layer of bit is believed to terminal transmission
First physical layer control channel of road parameter instruction information, wherein ceil (), which indicates to return, is more than or equal to specified expression formula
Smallest positive integral.
It optionally, further include having the second physical layer control in the first physical layer control channel that the second sending module 302 is sent
The active information of channel parameter processed deactivates information.
It optionally, further include having the second physical layer control in the first physical layer control channel that the second sending module 302 is sent
The duration of channel parameter processed.
As shown in figure 5, to be used for transmission the structural frames of the terminal 400 of physical layer control channel in the embodiment of the present invention
Figure, terminal 400 include:
First receiving module 401, for receiving the second physical layer control channel parameter sets, wherein the second physical layer control
It include at least one second physical layer control channel parameter in channel parameter set processed；Second receiving module 402, for receiving
First physical layer control channel includes the second physical layer control channel parameter instruction information in the first physical layer control channel,
And indicate that information and the second physical layer control channel parameter sets determine the second physics according to the second physical layer control channel parameter
Layer control channel parameter；Third receiving module 403, for receiving the second physical layer control channel, and according to the second physical layer control
Channel parameter processed receives the second physical layer control channel.
Optionally, the first receiving module 401 is also used to receive the second physical layer control channel parameter sets from first base station；
Second receiving module 402 is also used to receive the first physical layer control channel from first base station；Third receiving module 403 be also used to from
First base station or the second base station receive the second physical layer control channel.
Optionally, the reception of the first receiving module 401 includes the second physical layer of N number of second physical layer control channel parameter
Control channel parameter sets, wherein N indicates to be greater than 0 integer；The reception of second receiving module 402 includes ceil (log2 (N))
First physical layer control channel of bit the second physical layer control channel parameter instruction information, wherein ceil () indicates to return big
In or equal to specified expression formula smallest positive integral.
Optionally, it includes N number of second physical layer control channel parameter and M default that the first receiving module 401, which receives,
Second physical layer control channel parameter sets of the second physical layer control channel parameter, wherein M indicates to be greater than 0 integer, and M
< N；The reception of second receiving module 402 includes ceil (log2 (N-M)) bit the second physical layer control channel parameter instruction letter
First physical layer control channel of breath, wherein ceil () indicates to return to the smallest positive integral for being more than or equal to specified expression formula.
Optionally, whether terminal further includes first judgment module, for judge in the first physical layer control channel including the
The active information of two physical layer control channel parameters deactivates information, if including active information, at the current and later moment
The second physical layer control channel is received all in accordance with the second physical layer control channel parameter；If including deactivating information, current
And the moment does not receive the second physical layer control channel according to the second physical layer control channel parameter later.
Optionally, terminal further includes the second judgment module, for judge in the first physical layer control channel whether include
The duration of second physical layer control channel parameter, if the determination result is YES, then the root within the current and later duration
The second physical layer control channel is received according to the second physical layer control channel parameter.
Above-described is the preferred embodiment of the present invention, it should be pointed out that the ordinary person of the art is come
It says, can also make several improvements and retouch under the premise of not departing from principle of the present invention, these improvements and modifications also exist
In protection scope of the present invention.
Claims (22)
1. a kind of transmission method of physical layer control channel, it is applied to base station, which is characterized in that the transmission method includes:
The second physical layer control channel parameter sets are sent to terminal, wherein the second physical layer control channel parameter sets
In include at least one second physical layer control channel parameter；
The first physical layer control channel is sent to the terminal, includes the second physical layer in first physical layer control channel
Control channel parameter indicates information, and determines the second physical layer control letter by the second physical layer control channel parameter instruction information
Road parameter；
The second physical layer control channel is sent to the terminal, is connect by terminal according to the second determining physical layer control channel parameter
Receive the second physical layer control channel.
2. transmission method according to claim 1, which is characterized in that sending the second physical layer control channel ginseng to terminal
It include the second physical layer control channel of N number of second physical layer control channel parameter to terminal transmission in the step of manifold is closed
Parameter sets, wherein N is expressed as the integer greater than 0；
In the step of sending the first physical layer control channel to the terminal, the transmission of Xiang Suoshu terminal includes ceil (log2
(N)) the first physical layer control channel of bit the second physical layer control channel parameter instruction information, wherein ceil ()
It indicates to return to the smallest positive integral for being more than or equal to specified expression formula.
3. transmission method according to claim 1, which is characterized in that sending the second physical layer control channel ginseng to terminal
In the step of manifold is closed, sending to terminal includes N number of second physical layer control channel parameter and M the second physical layer defaulted
Second physical layer control channel parameter sets of control channel parameter, wherein M indicates to be greater than 0 integer, and M < N；
In the step of sending the first physical layer control channel to the terminal, the transmission of Xiang Suoshu terminal includes ceil (log2
(N-M)) the first physical layer control channel of bit the second physical layer control channel parameter instruction information, wherein ceil () table
Show the smallest positive integral for returning and being more than or equal to specified expression formula.
4. transmission method according to claim 1, which is characterized in that sending the first physical layer control letter to the terminal
Further include in the step of road, in first physical layer control channel have the second physical layer control channel parameter active information or
Deactivate information.
5. transmission method according to claim 1, which is characterized in that sending the first physical layer control letter to the terminal
It further include the duration for having the second physical layer control channel parameter in first physical layer control channel in the step of road.
6. a kind of transmission method of physical layer control channel, it is applied to terminal, which is characterized in that the transmission method includes:
Receive the second physical layer control channel parameter sets, wherein include in the second physical layer control channel parameter sets
There is at least one second physical layer control channel parameter；
The first physical layer control channel is received, includes the second physical layer control channel ginseng in first physical layer control channel
Number instruction information determines the second physical layer control channel parameter by the second physical layer control channel parameter instruction information, and
Indicate that information and the second physical layer control channel parameter sets determine the according to the second physical layer control channel parameter
Two physical layer control channel parameters；
The second physical layer control channel is received according to the second physical layer control channel parameter.
7. transmission method according to claim 6, which is characterized in that receiving the second physical layer control channel parameter sets
In the step of receiving the first physical layer control channel, the second physical layer control channel parameter is received from first base station respectively
Set and first physical layer control channel；The second physical layer control is being received according to the second physical layer control channel parameter
In the step of channel processed, second physical layer control channel is received from first base station or the second base station.
8. transmission method according to claim 6, which is characterized in that receiving the second physical layer control channel parameter sets
The step of in, reception includes the second physical layer control channel parameter sets of N number of second physical layer control channel parameter,
In, N indicates to be greater than 0 integer；
In the step of receiving the first physical layer control channel, reception includes ceil (log2 (N)) bit the second physical layer control
First physical layer control channel of channel parameter instruction information processed, wherein ceil (), which indicates to return, is more than or equal to specified table
Up to the smallest positive integral of formula.
9. transmission method according to claim 6, which is characterized in that receiving the second physical layer control channel parameter sets
The step of in, reception include N number of second physical layer control channel parameter and M default the second physical layer control channel parameter
The second physical layer control channel parameter sets, wherein M indicates to be greater than 0 integer, and M < N；
In the step of receiving the first physical layer control channel, reception includes ceil (log2 (N-M)) second physical layer of bit
First physical layer control channel of control channel parameter instruction information, wherein ceil () is indicated to return to be more than or equal to and be specified
The smallest positive integral of expression formula.
10. transmission method according to claim 6, which is characterized in that in the step of receiving the first physical layer control channel
Afterwards, the transmission method further include:
Judge in first physical layer control channel whether to include the active information of the second physical layer control channel parameter or go
Active information connects at the current and later moment all in accordance with the second physical layer control channel parameter if including active information
Receive second physical layer control channel；If including deactivating information, at the current and later moment not according to described second
Physical layer control channel parameter receives second physical layer control channel.
11. transmission method according to claim 6, which is characterized in that in the step of receiving the first physical layer control channel
Afterwards, the transmission method further include:
Judge in first physical layer control channel whether include the second physical layer control channel parameter duration, if
Judging result be it is yes, then within the current and later duration according to the second physical layer control channel parameter receive described in
Second physical layer control channel.
12. a kind of base station for being used for transmission physical layer control channel, which is characterized in that the base station includes:
First sending module, for sending the second physical layer control channel parameter sets to terminal, wherein second physical layer
It include at least one second physical layer control channel parameter in control channel parameter sets；
Second sending module, for sending the first physical layer control channel, first physical layer control channel to the terminal
In include the second physical layer control channel parameter instruction information, and by the second physical layer control channel parameter instruction information it is true
Fixed second physical layer control channel parameter；
Third sending module, for sending the second physical layer control channel to the terminal, by terminal according to the second determining object
It manages layer control channel parameter and receives the second physical layer control channel.
13. base station according to claim 12, which is characterized in that it includes N that first sending module is sent to terminal
Second physical layer control channel parameter sets of a second physical layer control channel parameter, wherein N is expressed as the integer greater than 0；
It includes that ceil (log2 (N)) bit the second physical layer control channel parameter refers to that second sending module is sent to the terminal
Show the first physical layer control channel of information, wherein ceil (), which indicates to return, is more than or equal to specified expression formula
Smallest positive integral.
14. base station according to claim 12, which is characterized in that it includes N that first sending module is sent to terminal
Second physical layer control channel of the second physical layer control channel parameter of a second physical layer control channel parameter and M default
Parameter sets, wherein M indicates to be greater than 0 integer, and M < N；Second sending module is sent to the terminal
First physical layer control channel of ceil (log2 (N-M)) bit the second physical layer control channel parameter instruction information, wherein
Ceil () indicates to return to the smallest positive integral for being more than or equal to specified expression formula.
15. base station according to claim 12, which is characterized in that the first physical layer control that second sending module is sent
It further include the active information or deactivation information for having the second physical layer control channel parameter in channel processed.
16. base station according to claim 12, which is characterized in that the first physical layer control that second sending module is sent
It further include the duration for having the second physical layer control channel parameter in channel processed.
17. a kind of terminal for being used for transmission physical layer control channel, which is characterized in that the terminal includes:
First receiving module, for receiving the second physical layer control channel parameter sets, wherein the second physical layer control letter
It include at least one second physical layer control channel parameter in road parameter sets；
Second receiving module includes for receiving the first physical layer control channel, in first physical layer control channel
Two physical layer control channel parameters indicate information, determine the second physics by the second physical layer control channel parameter instruction information
Layer control channel parameter, and information and second physical layer control letter are indicated according to the second physical layer control channel parameter
Road parameter sets determine the second physical layer control channel parameter；
Third receiving module, for receiving the second physical layer control letter according to the second physical layer control channel parameter
Road.
18. terminal according to claim 17, which is characterized in that first receiving module is also used to connect from first base station
Receive the second physical layer control channel parameter sets；Second receiving module is also used to receive the first physical layer control from first base station
Channel processed；The third receiving module is also used to receive the second physical layer control channel from first base station or the second base station.
19. terminal according to claim 17, which is characterized in that the first receiving module reception includes N number of second
Second physical layer control channel parameter sets of physical layer control channel parameter, wherein N indicates to be greater than 0 integer；Described second
Receiving module reception includes the first physical layer of ceil (log2 (N)) bit the second physical layer control channel parameter instruction information
Control channel, wherein ceil () indicates to return to the smallest positive integral for being more than or equal to specified expression formula.
20. terminal according to claim 17, which is characterized in that the first receiving module reception includes N number of second
Second physical layer control channel parameter set of the second physical layer control channel parameter of physical layer control channel parameter and M default
It closes, wherein M indicates to be greater than 0 integer, and M < N；The second receiving module reception includes ceil (log2 (N-M)) ratio
First physical layer control channel of special second physical layer control channel parameter instruction information, wherein ceil (), which indicates to return, to be greater than
Or the smallest positive integral equal to specified expression formula.
21. terminal according to claim 17, which is characterized in that the terminal further includes first judgment module, for sentencing
Break in first physical layer control channel and whether to include the active information of the second physical layer control channel parameter or deactivate letter
Breath, if including active information, at the current and later moment all in accordance with described in the second physical layer control channel parameter reception
Second physical layer control channel；If including deactivating information, at the current and later moment not according to second physical layer
Control channel parameter receives second physical layer control channel.
22. terminal according to claim 17, which is characterized in that the terminal further includes the second judgment module, for sentencing
Break in first physical layer control channel whether include the second physical layer control channel parameter duration, if judgement knot
Fruit be it is yes, then second object is received according to the second physical layer control channel parameter within the current and later duration
Manage layer control channel.
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| CN101194438A (en) * | 2005-05-04 | 2008-06-04 | 诺基亚公司 | Variable power control step sizes for high speed uplink packet access (HSUPA) |
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