CN103095390B - A kind of method and apparatus for configurating downlink link in the enb - Google Patents
A kind of method and apparatus for configurating downlink link in the enb Download PDFInfo
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Abstract
It is an object of the invention to provide a kind of method and apparatus for configurating downlink link in the enb, by sending the first down link signal to subscriber equipment；According to the physical uplink link shared channels between described subscriber equipment, carry out the first channel-decoding, to obtain the transmission state of described first down link signal；When described first channel-decoding failure, according to the physical uplink control channel between described subscriber equipment, carry out second channel decoding, to obtain described transmission state；According to the decoded result that described second channel decodes, configuration and the downlink between described subscriber equipment.Compared with prior art, physical uplink link shared channels is being decoded after unsuccessfully by the present invention, continue physical uplink control channel is decoded, correctly to obtain the transmission state of down link signal, avoid unnecessary re-transmission, thus being effectively improved the resource utilization of downlink, improve the throughput of this downlink.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of technology for configurating downlink link in the enb.
Background technology
In prior art, the downlink authorization (DLgrant) of eNB transmission to subscriber equipment and uplink grant license (ULgrant) are all transmitted in same subframe.When subscriber equipment lost uplink grant license, and when only detecting downlink authorization, this subscriber equipment will be gone physically and be controlled channel (PhysicalUplinkControlChannel, PUCCH) send in and confirm response (Acknowledgement, or negative response (NegativeAcknowledgement ACK), NACK), using as the response to the signal transmitted in the downlink.But, eNB does not also know that subscriber equipment cannot set up the connection of the up-link between eNB owing to lost uplink grant license, still think that confirmation response or negative response will be carried in uplink grant and be permitted assignable Physical Uplink Shared Channel (PhysicalUplinkSharedChannel, PUSCH) on, and this is decoded.So, eNB finds do not have signal in this Physical Uplink Shared Channel, namely thinks and is found that a discontinuous transmission (DiscontinuousTransmission, DTX).Therefore, even if subscriber equipment has been properly received the down link signal sent by eNB, eNB still thinks that this down link signal is not successfully transmitted to subscriber equipment, and has prepared the unnecessary re-transmission of a reality (retransmission).This is by the decline of the waste and this downlink throughput that cause down-chain resource.
Therefore, how for said circumstances, it is to avoid unnecessary re-transmission, thus effectively promoting the resource utilization of downlink, improving the throughput of this downlink, becoming one of those skilled in the art's problem needing solution badly.
Summary of the invention
It is an object of the invention to provide a kind of method and apparatus for configurating downlink link in the enb.
According to an aspect of the invention, it is provided a kind of method for configurating downlink link in the enb, wherein, the method includes:
A sends the first down link signal to subscriber equipment；
B, according to the physical uplink link shared channels between described subscriber equipment, carries out the first channel-decoding, to obtain the transmission state of described first down link signal；
C is when described first channel-decoding failure, according to the physical uplink control channel between described subscriber equipment, carries out second channel decoding, to obtain described transmission state；
D is according to described transmission state, configuration and the downlink between described subscriber equipment.
According to a further aspect in the invention, additionally providing a kind of configuration equipment for configurating downlink link in the enb, wherein, this equipment includes:
Dispensing device, for sending the first down link signal to subscriber equipment；
First decoding device, for the physical uplink link shared channels between basis and described subscriber equipment, carries out the first channel-decoding, to obtain the transmission state of described first down link signal；
Second decoding device, for when described first channel-decoding failure, according to the physical uplink control channel between described subscriber equipment, carrying out second channel decoding, to obtain described transmission state；
Configuration device, for according to described transmission state, configuration and the downlink between described subscriber equipment.
Compared with prior art, physical uplink link shared channels is being decoded after unsuccessfully by the present invention, continue physical uplink control channel is decoded, correctly to obtain the transmission state of down link signal, avoid unnecessary re-transmission, thus being effectively improved the resource utilization of downlink, improve the throughput of this downlink.
Accompanying drawing explanation
By reading the detailed description that non-limiting example is made made with reference to the following drawings, the other features, objects and advantages of the present invention will become more apparent upon:
Fig. 1 illustrates the equipment schematic diagram for configurating downlink link in the enb according to one aspect of the invention；
Fig. 2 illustrates the equipment schematic diagram for configurating downlink link in the enb in accordance with a preferred embodiment of the present invention；
Fig. 3 illustrates the method flow diagram for configurating downlink link in the enb according to a further aspect of the present invention；
Fig. 4 illustrates the method flow diagram for configurating downlink link in the enb in accordance with a preferred embodiment of the present invention.
In accompanying drawing, same or analogous accompanying drawing labelling represents same or analogous parts.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Fig. 1 illustrates the equipment schematic diagram for configurating downlink link in the enb according to one aspect of the invention；Wherein, configuration equipment 1 includes dispensing device the 101, first decoding device the 102, second decoding device 103 and configuration device 104.
Wherein, dispensing device 101 sends the first down link signal to subscriber equipment.Specifically, eNB sends uplink grant license and downlink authorization to subscriber equipment, when this subscriber equipment has correctly received downlink authorization, this subscriber equipment is set up and is connected with the downlink between eNB, the dispensing device 101 in configuration equipment 1 in this eNB, by being loaded on downlink sharied signal channel by the first down link signal, sends this first down link signal to subscriber equipment.Those skilled in the art will be understood that and above-mentioned send the mode of the first down link signal to subscriber equipment and be only for example; other existing or be likely to occur from now on send the mode of the first down link signal as being applicable to the present invention to subscriber equipment; also within should being included in scope, and it is incorporated herein with way of reference at this.
First decoding device 102, according to the physical uplink link shared channels between described subscriber equipment, carries out the first channel-decoding, to obtain the transmission state of described first down link signal.Specifically, first decoding device 102 is according to the physical uplink link shared channels between subscriber equipment, this physical uplink link shared channels is carried out the first channel-decoding, response is confirmed when decoding obtains, then this first decoding device 102 determines that described first down link signal sends successfully, and this configuration equipment 1 continues to send other down link signals to this subscriber equipment；When decoding obtains negative response, then this first decoding device 102 determines that described first down link signal sends unsuccessfully, and this configuration equipment 1 retransmits described first down link signal to this subscriber equipment；And when this first channel-decoding failure, as this first decoding device 102 cannot obtain any signal from the decoding of this physical uplink link shared channels, namely think and obtain a discontinuous transmission (DiscontinuousTransmission, DTX), or on this physical uplink link shared channels the signal power total value of all signals lower than predetermined power threshold, or on this channel the signal power total value of certain signal specific (such as uplink reference signals) lower than predetermined power threshold, first decoding device 102 thinks that this first channel-decoding is failed, follow up device performs follow-up operation further.Such as, when subscriber equipment lost the uplink grant license sent by eNB, and when only detecting downlink authorization, this subscriber equipment is owing to lost uplink grant license, and the connection of up-link between eNB cannot be set up, therefore, the first decoding device 102 is according to the physical uplink link shared channels between this subscriber equipment, and the first channel-decoding carried out will failure.
When described first channel-decoding failure, the second decoding device 103, according to the physical uplink control channel between described subscriber equipment, carries out second channel decoding, to obtain described transmission state.Specifically, when first decodes device 102 according to the physical uplink link shared channels between described subscriber equipment, during the first channel-decoding failure carried out, second decoding device 103 is according to the physical uplink control channel between this subscriber equipment, carry out second channel decoding, to obtain the transmission state of this first down link signal, as decoded according to this second channel, obtain and confirm response, then this second decoding device 103 determines that described first down link signal sends successfully；When decoding according to this second channel, it is thus achieved that negative response, then this second decoding device 103 determines that described first down link signal sends unsuccessfully.Those skilled in the art will be understood that the mode of the transmission state of described first down link signal of above-mentioned acquisition is only for example; other existing or modes of transmission state obtaining described first down link signal of being likely to occur from now on are as being applicable to the present invention; also within should being included in scope, and it is incorporated herein with way of reference at this.
The configuration device 104 transmission state according to described first down link signal, configuration and the downlink between described subscriber equipment.Specifically, configuration device 104 decodes device 103 according to second and carries out the decoded result that second channel decoding obtains, namely, the transmission state of described first down link signal, downlink between configuration and described subscriber equipment, decoded result as decoded when this second channel includes validating that response for this transmission state, namely, this subscriber equipment confirms to have been received by this first down link signal, then this configuration device 104 sends a new down link signal to this subscriber equipment, such as the second down link signal；When this transmission state includes negative response, i.e. subscriber equipment does not receive this first down link signal, this configuration device 104 resends this first down link signal to this subscriber equipment, i.e. this first down link signal is retransmitted.
Preferably, between each device of configuration equipment 1 it is constant work.Specifically, dispensing device 101 continues to send the first down link signal to subscriber equipment；First decoding device 102 continues the physical uplink link shared channels between basis and described subscriber equipment, carries out the first channel-decoding, to obtain the transmission state of described first down link signal；When described first channel-decoding failure, the second decoding device 103 continues the physical uplink control channel between basis and described subscriber equipment, carries out second channel decoding, to obtain described transmission state；Configuration device 104 continues according to described transmission state, configuration and the downlink between described subscriber equipment.At this, it will be understood by those skilled in the art that " continuing " refers to that each device of configuration equipment 1 constantly carries out the configuration of the transmission of the first down link signal, the decoding of physical uplink link shared channels, the decoding of physical uplink control channel and downlink, until the connection between the eNB at this subscriber equipment and this configuration equipment 1 place disconnects.
Fig. 2 illustrates the equipment schematic diagram for configurating downlink link in the enb in accordance with a preferred embodiment of the present invention；Wherein, configuration equipment 1 also includes state judging device 205, output computation device 206 and power comparison means 207.Referring to Fig. 2, the preferred embodiment being described in detail: specifically, dispensing device 201 sends the first down link signal to subscriber equipment；First decoding device 202, according to the physical uplink link shared channels between described subscriber equipment, carries out the first channel-decoding, to obtain the transmission state of described first down link signal；State judging device 205 judges whether described first channel-decoding obtains discontinuous transmission；When obtaining described discontinuous transmission, output computation device 206 calculates the signal power total value of signal in described physical uplink link shared channels；Power comparison means 207 judges that whether described signal power total value is less than predetermined power threshold；When described signal power total value is less than described predetermined power threshold, the second decoding device 203, according to the physical uplink control channel between described subscriber equipment, carries out second channel decoding, to obtain described transmission state；Configuration device 204 is according to described transmission state, configuration and the downlink between described subscriber equipment.Wherein, it is identical with corresponding intrument shown in Fig. 1 or essentially identical respectively with configuration device 204 that dispensing device 201, first decodes device 202, so place repeats no more, and is incorporated herein by way of reference.
Wherein, state judging device 205 judges whether described first channel-decoding obtains discontinuous transmission.Specifically, the first decoding device 202, according to the physical uplink link shared channels between subscriber equipment, carries out the first channel-decoding；State judging device 205 is according to this first channel-decoding result, judge whether to obtain discontinuous transmission, as, when first decode device 202 cannot decode any signal from this physical uplink link shared channels time, this state judging device 205 think acquisition one discontinuous transmission.
When obtaining described discontinuous transmission, output computation device 205 calculates the signal power total value of signal in described physical uplink link shared channels.At this, output computation device 205 can calculate the signal power total value of all signals on this physical uplink link shared channels, it is also possible to only calculates the signal power total value of certain signal specific (such as uplink reference signals) on this channel.Such as, output computation device 205 is according to the physical uplink link shared channels between this subscriber equipment, by obtaining all signals in this physical uplink link shared channels, according to this (s) the signal intensity of signal, calculate the performance number of each signal, further, by by this (s) the performance number of signal sue for peace, it is thus achieved that the signal power total value of all signals in this physical uplink link shared channels.
Power comparison means 207 judges that whether described signal power total value is less than predetermined power threshold.Specifically, the signal power total value of all signals on that power comparison means 206 obtains according to output computation device 205 calculating and between this subscriber equipment physical uplink link shared channels, this signal power total value and predetermined power threshold are compared, or, output computation device 205 is calculated the signal power total value of certain signal specific (such as uplink reference signals) on this physical uplink link shared channels obtained, compare with predetermined power threshold, when this signal power total value is less than predetermined power threshold, think that described physical uplink link shared channels is unavailable.Such as, assume the signal power total value of this physical uplink link shared channels is expressed as POW_MEA, predetermined power threshold is expressed as POW_THD, at this, this predetermined power threshold can be determined according to the quantity of Physical Resource Block, as this POW_MEA < POW_THD, power comparison means 206 determines that this physical uplink link shared channels is unavailable, namely, subscriber equipment may have lost eNB and sends to the uplink grant of this subscriber equipment and permit, second decoding device 203 is by the physical uplink control channel between basis and described subscriber equipment, carry out second channel decoding；As this POW_MEA > POW_THD, power comparison means 206 determines there is signal on this physical uplink link shared channels, this shared channel is decoded, to obtain in the confirmation response of this shared channel or negative response, and further according to this response, confirm whether this first down link signal is correctly received.
When described signal power total value is less than described predetermined power threshold, the second decoding device 203, according to the physical uplink control channel between described subscriber equipment, carries out second channel decoding, to obtain described transmission state.Specifically, when power comparison means 207 judges that described signal power total value is less than described predetermined power threshold, namely think that described physical uplink link shared channels is unavailable, this subscriber equipment may have lost eNB and sends to the uplink grant of this subscriber equipment and permit, second decoding device 203 is according to the physical uplink control channel between this subscriber equipment, carry out second channel decoding, to obtain the transmission state of this first down link signal, as decoded according to this second channel, obtain and confirm response, then this second decoding device 203 determines that described first down link signal sends successfully, configuration device 204 will send a new down link signal to this subscriber equipment, such as the second down link signal；When decoding according to this second channel, obtain negative response, then this second decoding device 203 determines that described first down link signal sends unsuccessfully, and configuration device 204 will resend this first down link signal to this subscriber equipment, that is, this first down link signal is retransmitted.
Preferably, described predetermined power threshold includes following at least any one:
-configurable parameter；
-empirical value；
-the adaptation value that can regulate according to the quantity of Physical Resource Block.
Specifically, predetermined power threshold includes but not limited to by the configurable parameter of factory setting, or according to the determined empirical value of the empirical data between a large number of users equipment and eNB, or the adaptation value that can regulate according to the quantity of Physical Resource Block.At this, the quantity of this Physical Resource Block can be formulated by uplink grant license and modulation scheme, and modulation scheme includes but not limited to adopt the quadrature amplitude modulation etc. of QPSK, 16 systems or 32 systems.For example, it is assumed that eNB is configured with more Physical Resource Block, have employed higher modulation scheme, then the value of predetermined power threshold POW_THD is bigger.Those skilled in the art will be understood that above-mentioned predetermined power threshold is only for example, and other existing or predetermined power thresholds of being likely to occur from now on, as being applicable to the present invention, within also should being included in scope, and are incorporated herein with way of reference at this.
Fig. 3 illustrates the method flow diagram for configurating downlink link in the enb according to a further aspect of the present invention.
In step S301, configuration equipment 1 sends the first down link signal to subscriber equipment.Specifically, eNB sends uplink grant license and downlink authorization to subscriber equipment, when this subscriber equipment has correctly received downlink authorization, this subscriber equipment is set up and is connected with the downlink between eNB, in step S301, configuration equipment 1 in this eNB, by being loaded on downlink sharied signal channel by the first down link signal, sends this first down link signal to subscriber equipment.Those skilled in the art will be understood that and above-mentioned send the mode of the first down link signal to subscriber equipment and be only for example; other existing or be likely to occur from now on send the mode of the first down link signal as being applicable to the present invention to subscriber equipment; also within should being included in scope, and it is incorporated herein with way of reference at this.
In step s 302, configuration equipment 1, according to the physical uplink link shared channels between described subscriber equipment, carries out the first channel-decoding, to obtain the transmission state of described first down link signal.Specifically, in step s 302, configuration equipment 1 is according to the physical uplink link shared channels between subscriber equipment, this physical uplink link shared channels is carried out the first channel-decoding, response is confirmed when decoding obtains, then this configuration equipment 1 determines that described first down link signal sends successfully, and this configuration equipment 1 continues to send other down link signals to this subscriber equipment；When decoding obtains negative response, then this configuration equipment 1 determines that described first down link signal sends unsuccessfully, and this configuration equipment 1 retransmits described first down link signal to this subscriber equipment；And when this first channel-decoding failure, as this configuration equipment 1 cannot obtain any signal from the decoding of this physical uplink link shared channels, namely think and obtain a discontinuous transmission (DiscontinuousTransmission, DTX), or on this physical uplink link shared channels the signal power total value of all signals lower than predetermined power threshold, or on this channel the signal power total value of certain signal specific (such as uplink reference signals) lower than predetermined power threshold, configuration equipment 1 thinks that this first channel-decoding is failed, configuration equipment 1 performs follow-up operation further in subsequent step.Such as, when subscriber equipment lost the uplink grant license sent by eNB, and when only detecting downlink authorization, this subscriber equipment is owing to lost uplink grant license, and the connection of up-link between eNB cannot be set up, therefore, in step s 302, configuration equipment 1 is according to the physical uplink link shared channels between this subscriber equipment, and the first channel-decoding carried out will failure.
When described first channel-decoding failure, in step S303, configuration equipment 1, according to the physical uplink control channel between described subscriber equipment, carries out second channel decoding, to obtain described transmission state.Specifically, when in step s 302, configuration equipment 1 is according to the physical uplink link shared channels between described subscriber equipment, during the first channel-decoding failure carried out, in step S303, configuration equipment 1 is according to the physical uplink control channel between this subscriber equipment, carry out second channel decoding, to obtain the transmission state of this first down link signal, as decoded according to this second channel, obtain and confirm response, then this configuration equipment 1 determines that described first down link signal sends successfully；When decoding according to this second channel, it is thus achieved that negative response, then this configuration equipment 1 determines that described first down link signal sends unsuccessfully.Those skilled in the art will be understood that the mode of the transmission state of described first down link signal of above-mentioned acquisition is only for example; other existing or modes of transmission state obtaining described first down link signal of being likely to occur from now on are as being applicable to the present invention; also within should being included in scope, and it is incorporated herein with way of reference at this.
In step s 304, the equipment 1 transmission state according to described first down link signal, configuration and the downlink between described subscriber equipment are configured.Specifically, in step s 304, configuration equipment 1 is according to carrying out the decoded result that second channel decoding obtains in step S303, namely, the transmission state of described first down link signal, downlink between configuration and described subscriber equipment, decoded result as decoded when this second channel includes validating that response for this transmission state, namely, this subscriber equipment confirms to have been received by this first down link signal, then this configuration equipment 1 sends a new down link signal to this subscriber equipment, such as the second down link signal；When this transmission state includes negative response, i.e. subscriber equipment does not receive this first down link signal, this configuration equipment 1 resends this first down link signal to this subscriber equipment, i.e. this first down link signal is retransmitted.
Preferably, between each step of configuration equipment 1 it is constant work.Specifically, in step S301, configuration equipment 1 continues to send the first down link signal to subscriber equipment；In step s 302, configuration equipment 1 continues the physical uplink link shared channels between basis and described subscriber equipment, carries out the first channel-decoding, to obtain the transmission state of described first down link signal；When described first channel-decoding failure, in step S303, configuration equipment 1 continues the physical uplink control channel between basis and described subscriber equipment, carries out second channel decoding, to obtain described transmission state；In step s 304, configuration equipment 1 continues according to described transmission state, configuration and the downlink between described subscriber equipment.At this, it will be understood by those skilled in the art that " continuing " refers to that each step of configuration equipment 1 constantly carries out the configuration of the transmission of the first down link signal, the decoding of physical uplink link shared channels, the decoding of physical uplink control channel and downlink, until the connection between the eNB at this subscriber equipment and this configuration equipment 1 place disconnects.
Fig. 4 illustrates the method flow diagram for configurating downlink link in the enb in accordance with a preferred embodiment of the present invention.Referring to Fig. 4, the preferred embodiment being described in detail: specifically, in step S401, configuration equipment 1 sends the first down link signal to subscriber equipment；In step S402, configuration equipment 1, according to the physical uplink link shared channels between described subscriber equipment, carries out the first channel-decoding, to obtain the transmission state of described first down link signal；In step S405, configuration equipment 1 judges whether described first channel-decoding obtains discontinuous transmission；In step S406, when obtaining described discontinuous transmission, configuration equipment 1 calculates the signal power total value of signal in described physical uplink link shared channels；In step S 407, configuration equipment 1 judges that whether described signal power total value is less than predetermined power threshold；When described signal power total value is less than described predetermined power threshold, in step S403, configuration equipment 1, according to the physical uplink control channel between described subscriber equipment, carries out second channel decoding, to obtain described transmission state；In step s 404, configuration equipment 1 is according to described transmission state, configuration and the downlink between described subscriber equipment.Wherein, step S401, S402, S404 step corresponding to shown in Fig. 3 respectively is identical or essentially identical, so place repeats no more, and is incorporated herein by way of reference.
Wherein, in step S405, configuration equipment 1 judges whether described first channel-decoding obtains discontinuous transmission.Specifically, in step S402, configuration equipment 1, according to the physical uplink link shared channels between subscriber equipment, carries out the first channel-decoding；In step S405, configuration equipment 1 is according to this first channel-decoding result, it may be judged whether obtain discontinuous transmission, e.g., when configuration equipment 1 cannot decode any signal from this physical uplink link shared channels, namely thinks and obtains a discontinuous transmission.
In step S405, configuration equipment 1 calculates the signal power total value of signal in described physical uplink link shared channels.At this, in step S405, configuration equipment 1 can calculate the signal power total value of all signals on this physical uplink link shared channels, it is also possible to only calculates the signal power total value of certain signal specific (such as uplink reference signals) on this channel.Such as, in step S405, configuration equipment 1 is by obtaining all signals in this physical uplink link shared channels, according to this (s) the signal intensity of signal, calculate the performance number of each signal, further, by by this (s) the performance number of signal sue for peace, it is thus achieved that the signal power total value of all signals in this physical uplink link shared channels.
In step S406, configuration equipment 1 judges that whether described signal power total value is less than predetermined power threshold.Specifically, in step S406, the configuration equipment 1 signal power total value according to all signals calculated in step S405 on that obtain and between this subscriber equipment physical uplink link shared channels, this signal power total value and predetermined power threshold are compared, or, the signal power total value of certain signal specific (such as uplink reference signals) on this physical uplink link shared channels that calculating in step S405 is obtained, compare with predetermined power threshold, this signal power total value is less than predetermined power threshold, think that described physical uplink link shared channels is unavailable.Such as, assume the signal power total value of this physical uplink link shared channels is expressed as POW_MEA, predetermined power threshold is expressed as POW_THD, at this, this predetermined power threshold can be determined according to the quantity of Physical Resource Block, as this POW_MEA < POW_THD, in step S406, configuration equipment 1 determines that this physical uplink link shared channels is unavailable, namely, subscriber equipment may have lost eNB and sends to the uplink grant of this subscriber equipment and permit, in step S403, configuration equipment 1 is by the physical uplink control channel between basis and described subscriber equipment, carry out second channel decoding；As this POW_MEA > POW_THD, in step S406, configuration equipment 1 determines there is signal on this physical uplink link shared channels, this shared channel is decoded, to obtain in the confirmation response of this shared channel or negative response, and further according to this response, confirm whether this first down link signal is correctly received.
When described signal power total value is less than described predetermined power threshold, in step S403, configuration equipment 1, according to the physical uplink control channel between described subscriber equipment, carries out second channel decoding, to obtain described transmission state.Specifically, when in step S 407, configuration equipment 1 judges that described signal power total value is less than described predetermined power threshold, namely think that described physical uplink link shared channels is unavailable, this subscriber equipment may have lost eNB and sends to the uplink grant of this subscriber equipment and permit, in step S403, configuration equipment 1 is according to the physical uplink control channel between this subscriber equipment, carry out second channel decoding, to obtain the transmission state of this first down link signal, as decoded according to this second channel, obtain and confirm response, then this configuration equipment 1 determines that described first down link signal sends successfully, in step s 404, configuration equipment 1 will send a new down link signal to this subscriber equipment, such as the second down link signal；When decoding according to this second channel, it is thus achieved that negative response, then this configuration equipment 1 determines that described first down link signal sends unsuccessfully, in step s 404, configuration equipment 1 will resend this first down link signal to this subscriber equipment, i.e. this first down link signal is retransmitted.
Preferably, described predetermined power threshold includes following at least any one:
-configurable parameter；
-empirical value；
-the adaptation value that can regulate according to the quantity of Physical Resource Block.
Specifically, predetermined power threshold includes but not limited to by the configurable parameter of factory setting, or according to the determined empirical value of the empirical data between a large number of users equipment and eNB, or the adaptation value that can regulate according to the quantity of Physical Resource Block.At this, the quantity of this Physical Resource Block can be formulated by uplink grant license and modulation scheme, and modulation scheme includes but not limited to adopt the quadrature amplitude modulation etc. of QPSK, 16 systems or 32 systems.For example, it is assumed that eNB is configured with more Physical Resource Block, have employed higher modulation scheme, then the value of predetermined power threshold POW_THD is bigger.Those skilled in the art will be understood that above-mentioned predetermined power threshold is only for example, and other existing or predetermined power thresholds of being likely to occur from now on, as being applicable to the present invention, within also should being included in scope, and are incorporated herein with way of reference at this.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when without departing substantially from the spirit of the present invention or basic feature, it is possible to realize the present invention in other specific forms.Therefore, no matter from which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the invention rather than described above limits, it is intended that all changes in the implication of the equivalency dropping on claim and scope be included in the present invention.Any accompanying drawing labelling in claim should be considered as the claim that restriction is involved.Furthermore, it is to be understood that " including " word is not excluded for other unit or step, odd number is not excluded for plural number.Multiple unit or the device stated in device claim can also be realized by software or hardware by a unit or device.The first, the second word such as grade is used for representing title, and is not offered as any specific order.
Claims (8)
1., for a method for configurating downlink link in the enb, wherein, the method includes:
A sends the first down link signal to subscriber equipment；
B, according to the physical uplink link shared channels between described subscriber equipment, carries out the first channel-decoding, to obtain the transmission state of described first down link signal；
C is when described first channel-decoding failure, according to the physical uplink control channel between described subscriber equipment, carries out second channel decoding, to obtain described transmission state；
D is according to described transmission state, configuration and the downlink between described subscriber equipment.
2. method according to claim 1, wherein, described step d includes:
-when described transmission state includes validating that response, send the second down link signal to described subscriber equipment；
-when described transmission state includes negative response, resend described first down link signal to described subscriber equipment.
3. method according to claim 1 and 2, wherein, the method also includes:
-judge whether described first channel-decoding obtains discontinuous transmission；
-when obtaining described discontinuous transmission, calculate the signal power total value of signal in described physical uplink link shared channels；
-judge that whether described signal power total value is less than predetermined power threshold；
Wherein, described step c includes:
-when described signal power total value is less than described predetermined power threshold, according to the physical uplink control channel between described subscriber equipment, carry out second channel decoding, to obtain described transmission state.
4. method according to claim 3, wherein, described predetermined power threshold includes following at least any one:
-configurable parameter；
-empirical value；
-the adaptation value that can regulate according to the quantity of Physical Resource Block.
5., for a configuration equipment for configurating downlink link in the enb, wherein, this equipment includes:
Dispensing device, for sending the first down link signal to subscriber equipment；
First decoding device, for the physical uplink link shared channels between basis and described subscriber equipment, carries out the first channel-decoding, to obtain the transmission state of described first down link signal；
Second decoding device, for when described first channel-decoding failure, according to the physical uplink control channel between described subscriber equipment, carrying out second channel decoding, to obtain described transmission state；
Configuration device, for according to described transmission state, configuration and the downlink between described subscriber equipment.
6. configuration equipment according to claim 5, wherein, described configuration device is used for:
-when described transmission state includes validating that response, send the second down link signal to described subscriber equipment；
-when described transmission state includes negative response, resend described first down link signal to described subscriber equipment.
7. the configuration equipment according to claim 5 or 6, wherein, this equipment also includes:
State judging device, is used for judging whether described first channel-decoding obtains discontinuous transmission；
Output computation device, for when obtaining described discontinuous transmission, calculating the signal power total value of signal in described physical uplink link shared channels；
Power comparison means, is used for judging that whether described signal power total value is less than predetermined power threshold；
Wherein, described second decoding device is used for:
-when described signal power total value is less than described predetermined power threshold, according to the physical uplink control channel between described subscriber equipment, carry out second channel decoding, to obtain described transmission state.
8. configuration equipment according to claim 7, wherein, described predetermined power threshold includes following at least any one:
-configurable parameter；
-empirical value；
-the adaptation value that can regulate according to the quantity of Physical Resource Block.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110337947.8A CN103095390B (en) | 2011-10-31 | 2011-10-31 | A kind of method and apparatus for configurating downlink link in the enb |
Applications Claiming Priority (1)
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| CN101455114A (en) * | 2006-05-24 | 2009-06-10 | 日本电气株式会社 | Mobile communication system, base station, and transmission power control method used for them |
| CN101523966A (en) * | 2006-10-10 | 2009-09-02 | 交互数字技术公司 | Method and apparatus for sending feedback for a downlink shared service transmitted to a plurality of wireless transmit/receive units |
| CN101981953A (en) * | 2008-01-29 | 2011-02-23 | 夏普株式会社 | Communication device and communication method |
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| CN101455114A (en) * | 2006-05-24 | 2009-06-10 | 日本电气株式会社 | Mobile communication system, base station, and transmission power control method used for them |
| CN101523966A (en) * | 2006-10-10 | 2009-09-02 | 交互数字技术公司 | Method and apparatus for sending feedback for a downlink shared service transmitted to a plurality of wireless transmit/receive units |
| CN101981953A (en) * | 2008-01-29 | 2011-02-23 | 夏普株式会社 | Communication device and communication method |
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