CN103095390A - Method and device for down link configuration in eNB - Google Patents
Method and device for down link configuration in eNB Download PDFInfo
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- CN103095390A CN103095390A CN2011103379478A CN201110337947A CN103095390A CN 103095390 A CN103095390 A CN 103095390A CN 2011103379478 A CN2011103379478 A CN 2011103379478A CN 201110337947 A CN201110337947 A CN 201110337947A CN 103095390 A CN103095390 A CN 103095390A
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Abstract
The invention provides a method and a device for down link configuration in eNB. A first down link signal is sent to a user device; a first channel is decoded according to a physical up link sharing channel between the device and the user device so that a sending state of the first down link signal is obtained; when the first channel can not be decoded, a second channel is decoded according to a physical up link control channel between the device and the user device so that the sending state is obtained; and the down link between the device and the user device is arranged according to the decoding result of the second channel. Compared with the prior art, when the physical up link sharing channel can not be decoded, the physical up link control channel is decoded continuously so that the sending state of the down link signal is obtained correctly, unnecessary repeated transmission is avoided, and therefore resource using rate of a down link is effectively improved and throughput rate of the down link is increased.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of for the technology at the eNB configuring downlink.
Background technology
In prior art, the down link authorization (DL grant) and the uplink grant license (UL grant) that are sent to subscriber equipment by eNB are all transmitted in same subframe.When subscriber equipment has been lost the uplink grant license, and when the down link authorization only being detected, this subscriber equipment will be gone control channel (Physical Uplink Control Channel physically, PUCCH) send in and confirm to reply (Acknowledgement, ACK) or negative response (Negative Acknowledgement, NACK), with as the response to the signal that transmits in down link.Yet, eNB and do not know subscriber equipment can't set up owing to having lost the uplink grant license with eNB between being connected of up link, still think and confirm to reply or negative response will be carried in uplink grant and be permitted assignable Physical Uplink Shared Channel (Physical Uplink Shared Channel, PUSCH) on, and this is decoded.Like this, eNB finds there is no signal in this Physical Uplink Shared Channel, namely thinks and has found a discontinuous transmission (Discontinuous Transmission, DTX).Therefore, even subscriber equipment has successfully received the down link signal that is sent by eNB, eNB thinks that still this down link signal does not successfully transfer to subscriber equipment, and has prepared a re-transmission (retransmission) that reality is unnecessary.This will cause the waste of down-chain resource and the decline of this down link throughput.
Therefore, how for said circumstances, avoid unnecessary re-transmission, thereby effectively promote the resource utilization of down link, improve the throughput of this down link, become those skilled in the art and need one of problem of solution badly.
Summary of the invention
The purpose of this invention is to provide a kind of for the method and apparatus at the eNB configuring downlink.
According to an aspect of the present invention, provide a kind of for the method at the eNB configuring downlink, wherein, the method comprises:
A sends the first down link signal to subscriber equipment;
Physical uplink link sharing channel between b basis and described subscriber equipment carries out the first channel-decoding, to obtain the transmission state of described the first down link signal;
C is when described first channel-decoding when failure, according to and described subscriber equipment between physical uplink control channel, carry out the second channel decoding, to obtain described transmission state;
D is according to described transmission state, the down link between configuration and described subscriber equipment.
According to a further aspect in the invention, also provide a kind of for the configuration device at the eNB configuring downlink, wherein, this equipment comprises:
Dispensing device is used for sending the first down link signal to subscriber equipment;
The first decoding device is used for the physical uplink link sharing channel between basis and described subscriber equipment, carries out the first channel-decoding, to obtain the transmission state of described the first down link signal;
The second decoding device is used for when described the first channel-decoding failure, according to and described subscriber equipment between physical uplink control channel, carry out second channel and decode, to obtain described transmission state;
Inking device is used for according to described transmission state, the down link between configuration and described subscriber equipment.
Compared with prior art, the present invention is to after physical uplink link sharing channel-decoding failure, continuation is decoded to physical uplink control channel, transmission state with correct acquisition down link signal, avoided unnecessary re-transmission, thereby effectively promoted the resource utilization of down link, improved the throughput of this down link.
Description of drawings
By reading the detailed description that non-limiting example is done of doing with reference to the following drawings, it is more obvious that other features, objects and advantages of the present invention will become:
Fig. 1 illustrates the equipment schematic diagram at the eNB configuring downlink of being used for according to one aspect of the invention;
Fig. 2 illustrates the equipment schematic diagram at the eNB configuring downlink of being used in accordance with a preferred embodiment of the present invention;
Fig. 3 illustrates the method flow diagram at the eNB configuring downlink of being used for according to a further aspect of the present invention;
Fig. 4 illustrates the method flow diagram at the eNB configuring downlink of being used in accordance with a preferred embodiment of the present invention.
In accompanying drawing, same or analogous Reference numeral represents same or analogous parts.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Fig. 1 illustrates the equipment schematic diagram at the eNB configuring downlink of being used for according to one aspect of the invention; Wherein, configuration device 1 comprises dispensing device 101, the first decoding device 102, the second decoding device 103 and inking device 104.
Wherein, dispensing device 101 sends the first down link signal to subscriber equipment.Particularly, eNB sends uplink grant license and down link authorization to subscriber equipment, when this subscriber equipment correctly receives the down link authorization, this subscriber equipment set up with eNB between down link be connected, dispensing device 101 in configuration device 1 in this eNB sends this first down link signal by the first down link signal is loaded on downlink sharied signal channel to subscriber equipment.Those skilled in the art will be understood that above-mentioned mode to subscriber equipment transmission the first down link signal is only for example; other existing or modes that send the first down link signal to subscriber equipment that may occur from now on are as applicable to the present invention; also should be included in protection range of the present invention, and be contained in this at this with way of reference.
Physical uplink link sharing channel between the first decoding device 102 bases and described subscriber equipment carries out the first channel-decoding, to obtain the transmission state of described the first down link signal.particularly, physical uplink link sharing channel between the first decoding device 102 bases and subscriber equipment, this physical uplink link sharing channel is carried out the first channel-decoding, when decoding obtains to confirm to reply, this first decoding device 102 determines that described the first down link signal sends successfully, and this configuration device 1 continues to send other down link signals to this subscriber equipment, when decoding acquisition negative response, this first decoding device 102 determines that described the first down link signal sends unsuccessfully, and this configuration device 1 retransmits described the first down link signal to this subscriber equipment, and when this first channel-decoding failure, can't obtain any signal from this physical uplink link sharing channel-decoding as this first decoding device 102, namely think and obtain a discontinuous transmission (Discontinuous Transmission, DTX), or on this physical uplink link sharing channel 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 (as up reference signal) lower than predetermined power threshold, the first decoding device 102 thinks that this first channel-decoding is failed, follow up device is further carried out follow-up operation.For example, lost the uplink grant license that is sent by eNB when subscriber equipment, and when the down link authorization only being detected, this subscriber equipment is owing to having lost the uplink grant license, and can't set up with eNB between being connected of up link, therefore, the physical uplink link sharing channel between the first decoding device 102 bases and this subscriber equipment, the first channel-decoding that carries out will failure.
When described the first channel-decoding failure, the physical uplink control channel between the second decoding device 103 bases and described subscriber equipment is carried out the second channel decoding, to obtain described transmission state.Particularly, physical uplink link sharing channel when between the first decoding device 102 bases and described subscriber equipment, when the first channel-decoding that carries out is failed, physical uplink control channel between the second decoding device 103 bases and this subscriber equipment, carry out the second channel decoding, to obtain the transmission state of this first down link signal, as decoding according to this second channel, obtain to confirm to reply, this second decoding device 103 determines that described the first down link signal sends successfully; When according to this second channel decoding, obtain negative response, this second decoding device 103 determines that described the first down link signal sends unsuccessfully.Those skilled in the art will be understood that the mode of the transmission state of described the first down link signal of above-mentioned acquisition is only for example; the mode of the transmission state of described the first down link signal of other acquisitions existing or that may occur from now on is as applicable to the present invention; also should be included in protection range of the present invention, and be contained in this at this with way of reference.
Inking device 104 is according to the transmission state of described the first down link signal, the down link between configuration and described subscriber equipment.Particularly, inking device 104 carries out according to the second decoding device 103 decoded result that the second channel decoding obtains, namely, the transmission state of described the first down link signal, down link between configuration and described subscriber equipment, confirm to reply for this transmission state comprises as the decoded result when this second channel decoding, namely, this subscriber equipment confirms to have received this first down link signal, this inking device 104 sends a new down link signal to this subscriber equipment, as the second down link signal; When this transmission state comprises negative response, that is, subscriber equipment is not received this first down link signal, and this inking device 104 resends this first down link signal to this subscriber equipment, that is, this first down link signal is retransmitted.
Preferably, be constant work between each device of configuration device 1.Particularly, dispensing device 101 continues to send the first down link signal to subscriber equipment; The physical uplink link sharing channel that the first decoding device 102 continues between basis and described subscriber equipment carries out the first channel-decoding, to obtain the transmission state of described the first down link signal; When described the first channel-decoding failure, the physical uplink control channel that the second decoding device 103 continues between basis and described subscriber equipment is carried out the second channel decoding, to obtain described transmission state; Inking device 104 continues according to described transmission state, the down link between configuration and described subscriber equipment.At this, it will be understood by those skilled in the art that " continuing " refers to that each device of configuration device 1 constantly carries out the transmission of the first down link signal, the decoding of physical uplink link sharing channel, the decoding of physical uplink control channel and the configuration of down link, until be connected disconnection between the eNB at this subscriber equipment and this configuration device 1 place.
Fig. 2 illustrates the equipment schematic diagram at the eNB configuring downlink of being used in accordance with a preferred embodiment of the present invention; Wherein, configuration device 1 also comprises state judging device 205, output computation device 206 and power comparison means 207.Referring to Fig. 2, the preferred embodiment is described in detail: particularly, dispensing device 201 sends the first down link signal to subscriber equipment; Physical uplink link sharing channel between the first decoding device 202 bases and described subscriber equipment carries out the first channel-decoding, to obtain the transmission state of described the first down link signal; State judging device 205 judges whether described the 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 sharing channel; Power comparison means 207 judges that whether described signal power total value is less than the predetermined power total value; Less than described predetermined power total value, the physical uplink control channel between the second decoding device 203 bases and described subscriber equipment is carried out the second channel decoding, to obtain described transmission state when described signal power total value; Inking device 204 is according to described transmission state, the down link between configuration and described subscriber equipment.Wherein, dispensing device 201, the first decoding device 202 and inking device 204 are identical with corresponding intrument shown in Figure 1 or basic identical respectively, so locate to repeat no more, and mode by reference is contained in this.
Wherein, state judging device 205 judges whether described the first channel-decoding obtains discontinuous transmission.Particularly, the physical uplink link sharing channel between the first decoding device 202 bases and 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 the first decoding device 202 can't decode any signal from this physical uplink link sharing channel, this state judging device 205 was thought and is obtained a discontinuous transmission.
When obtaining described discontinuous transmission, output computation device 205 calculates the signal power total value of signal in described physical uplink link sharing channel.At this, output computation device 205 can calculate the signal power total value of all signals on this physical uplink link sharing channel, also can only calculate the signal power total value of certain signal specific (as up reference signal) on this channel.For example, physical uplink link sharing channel between output computation device 205 bases and this subscriber equipment, by obtaining all signals in this physical uplink link sharing channel, according to this (etc.) signal strength signal intensity of signal, calculate the performance number of each signal, further, by will be somebody's turn to do (etc.) performance number of signal sues for peace, and obtains the signal power total value of all signals in this physical uplink link sharing channel.
Power comparison means 207 judges that whether described signal power total value is less than the predetermined power total value.particularly, power comparison means 206 according to output computation device 205 calculate obtain and this subscriber equipment between physical uplink link sharing channel on the signal power total value of all signals, this signal power total value and predetermined power threshold are compared, perhaps, output computation device 205 is calculated the signal power total value of certain signal specific (as up reference signal) on this physical uplink link sharing channel that obtains, compare with predetermined power threshold, when this signal power total value less than predetermined power threshold, think that described physical uplink link sharing channel is unavailable.for example, suppose the signal power total value of this physical uplink link sharing channel 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 sharing channel is unavailable, namely, subscriber equipment may be lost the uplink grant license that eNB is sent to this subscriber equipment, the second decoding device 203 will according to and described subscriber equipment between physical uplink control channel, carry out the second channel decoding, as this POW_MEA＞POW_THD, power comparison means 206 is determined to have signal on this physical uplink link sharing channel, this shared channel is decoded, reply or negative response with the confirmation that obtains to transmit on this shared channel, and further reply according to this, confirm whether this first down link signal is correctly received.
Less than described predetermined power total value, the physical uplink control channel between the second decoding device 203 bases and described subscriber equipment is carried out the second channel decoding, to obtain described transmission state when described signal power total value.particularly, when power comparison means 207 judges that described signal power total values are less than described predetermined power total value, think that namely described physical uplink link sharing channel is unavailable, this subscriber equipment may be lost the uplink grant license that eNB is sent to this subscriber equipment, physical uplink control channel between the second decoding device 203 bases and this subscriber equipment, carry out the second channel decoding, to obtain the transmission state of this first down link signal, as decoding according to this second channel, obtain to confirm to reply, this second decoding device 203 determines that described the first down link signal sends successfully, inking device 204 will send a new down link signal to this subscriber equipment, as the second down link signal, when decoding according to this second channel, obtain negative response, this second decoding device 203 determines that described the first down link signal sends unsuccessfully, and inking 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 comprises following any one at least:
-configurable parameter;
-empirical value;
-the adaptation value that can regulate according to the quantity of Physical Resource Block.
Particularly, predetermined power threshold includes but not limited to the configurable parameter by factory setting, or empirical value determined according to 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 of quarternary phase-shift keying (QPSK), 16 systems or 32 systems etc.For example, suppose that eNB has configured more Physical Resource Block, adopted higher modulation scheme, the value of predetermined power threshold POW_THD is larger.Those skilled in the art will be understood that above-mentioned predetermined power threshold only for giving an example, and other predetermined power thresholds existing or that may occur from now on also should be included in protection range of the present invention as applicable to the present invention, and are contained in this at this with way of reference.
Fig. 3 illustrates the method flow diagram at the eNB configuring downlink of being used for according to a further aspect of the present invention.
In step S301, configuration device 1 sends the first down link signal to subscriber equipment.Particularly, eNB sends uplink grant license and down link authorization to subscriber equipment, when this subscriber equipment correctly receives the down link authorization, this subscriber equipment set up with eNB between down link be connected, in step S301, configuration device 1 in this eNB sends this first down link signal by the first down link signal is loaded on downlink sharied signal channel to subscriber equipment.Those skilled in the art will be understood that above-mentioned mode to subscriber equipment transmission the first down link signal is only for example; other existing or modes that send the first down link signal to subscriber equipment that may occur from now on are as applicable to the present invention; also should be included in protection range of the present invention, and be contained in this at this with way of reference.
In step S302, the physical uplink link sharing channel between configuration device 1 basis and described subscriber equipment carries out the first channel-decoding, to obtain the transmission state of described the first down link signal.particularly, in step S302, physical uplink link sharing channel between configuration device 1 basis and subscriber equipment, this physical uplink link sharing channel is carried out the first channel-decoding, when decoding obtains to confirm to reply, this configuration device 1 determines that described the first down link signal sends successfully, and this configuration device 1 continues to send other down link signals to this subscriber equipment, when decoding acquisition negative response, this configuration device 1 determines that described the first down link signal sends unsuccessfully, and this configuration device 1 retransmits described the first down link signal to this subscriber equipment, and when this first channel-decoding failure, can't obtain any signal from this physical uplink link sharing channel-decoding as this configuration device 1, namely think and obtain a discontinuous transmission (Discontinuous Transmission, DTX), or on this physical uplink link sharing channel 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 (as up reference signal) lower than predetermined power threshold, configuration device 1 thinks that this first channel-decoding is failed, configuration device 1 is further carried out follow-up operation in subsequent step.For example, lost the uplink grant license that is sent by eNB when subscriber equipment, and when the down link authorization only being detected, this subscriber equipment is owing to having lost the uplink grant license, and can't set up with eNB between being connected of up link, therefore, in step S302, physical uplink link sharing channel between configuration device 1 basis and this subscriber equipment, the first channel-decoding that carries out will failure.
When described the first channel-decoding failure, in step S303, the physical uplink control channel between configuration device 1 basis and described subscriber equipment is carried out the second channel decoding, to obtain described transmission state.Particularly, when in step S302, physical uplink link sharing channel between configuration device 1 basis and described subscriber equipment is during the first channel-decoding failure of carrying out, in step S303, physical uplink control channel between configuration device 1 basis and this subscriber equipment, carry out the second channel decoding, to obtain the transmission state of this first down link signal, as decoding according to this second channel, obtain to confirm to reply, this configuration device 1 determines that described the first down link signal sends successfully; When according to this second channel decoding, obtain negative response, this configuration device 1 determines that described the first down link signal sends unsuccessfully.Those skilled in the art will be understood that the mode of the transmission state of described the first down link signal of above-mentioned acquisition is only for example; the mode of the transmission state of described the first down link signal of other acquisitions existing or that may occur from now on is as applicable to the present invention; also should be included in protection range of the present invention, and be contained in this at this with way of reference.
In step S304, configuration device 1 is according to the transmission state of described the first down link signal, the down link between configuration and described subscriber equipment.Particularly, in step S304, configuration device 1 basis is carried out the decoded result that the second channel decoding obtains in step S303, namely, the transmission state of described the first down link signal, down link between configuration and described subscriber equipment, confirm to reply for this transmission state comprises as the decoded result when this second channel decoding, namely, this subscriber equipment confirms to have received this first down link signal, this configuration device 1 sends a new down link signal to this subscriber equipment, as the second down link signal; When this transmission state comprises negative response, that is, subscriber equipment is not received this first down link signal, and this configuration device 1 resends this first down link signal to this subscriber equipment, that is, this first down link signal is retransmitted.
Preferably, between each step of configuration device 1 be constant work.Particularly, in step S301, configuration device 1 continues to send the first down link signal to subscriber equipment; In step S302, the physical uplink link sharing channel that configuration device 1 continues between basis and described subscriber equipment carries out the first channel-decoding, to obtain the transmission state of described the first down link signal; When described the first channel-decoding failure, in step S303, the physical uplink control channel that configuration device 1 continues between basis and described subscriber equipment is carried out the second channel decoding, to obtain described transmission state; In step S304, configuration device 1 continues according to described transmission state, the down link between configuration and described subscriber equipment.At this, it will be understood by those skilled in the art that " continuing " refers to that each step of configuration device 1 constantly carries out the decoding of the transmission of the first down link signal, physical uplink link sharing channel, the decoding of physical uplink control channel and the configuration of down link, until be connected disconnection between the eNB at this subscriber equipment and this configuration device 1 place.
Fig. 4 illustrates the method flow diagram at the eNB configuring downlink of being used in accordance with a preferred embodiment of the present invention.Referring to Fig. 4, the preferred embodiment is described in detail: particularly, in step S401, configuration device 1 sends the first down link signal to subscriber equipment; In step S402, the physical uplink link sharing channel between configuration device 1 basis and described subscriber equipment carries out the first channel-decoding, to obtain the transmission state of described the first down link signal; In step S405, configuration device 1 judges whether described the first channel-decoding obtains discontinuous transmission; In step S406, when obtaining described discontinuous transmission, configuration device 1 calculates the signal power total value of signal in described physical uplink link sharing channel; In step S407, configuration device 1 judges that whether described signal power total value is less than the predetermined power total value; Less than described predetermined power total value, in step S403, the physical uplink control channel between configuration device 1 basis and described subscriber equipment is carried out the second channel decoding, to obtain described transmission state when described signal power total value; In step S404, configuration device 1 is according to described transmission state, the down link between configuration and described subscriber equipment.Wherein, step S401, S402, S404 are identical or basic identical with corresponding step shown in Figure 3 respectively, so locate to repeat no more, and mode by reference is contained in this.
Wherein, in step S405, configuration device 1 judges whether described the first channel-decoding obtains discontinuous transmission.Particularly, in step S402, the physical uplink link sharing channel between configuration device 1 basis and subscriber equipment carries out the first channel-decoding; In step S405, configuration device 1 judges whether to obtain discontinuous transmission according to this first channel-decoding result, as, when configuration device 1 can't decode any signal from this physical uplink link sharing channel, namely think to obtain a discontinuous transmission.
In step S405, configuration device 1 calculates the signal power total value of signal in described physical uplink link sharing channel.At this, in step S405, configuration device 1 can calculate the signal power total value of all signals on this physical uplink link sharing channel, also can only calculate the signal power total value of certain signal specific (as up reference signal) on this channel.For example, in step S405, configuration device 1 is by obtaining all signals in this physical uplink link sharing channel, according to this (etc.) signal strength signal intensity of signal, calculate the performance number of each signal, further, by will be somebody's turn to do (etc.) performance number of signal sues for peace, and obtains the signal power total value of all signals in this physical uplink link sharing channel.
In step S406, configuration device 1 judges that whether described signal power total value is less than the predetermined power total value.particularly, in step S406, configuration device 1 according to calculate in step S405 obtain and this subscriber equipment between physical uplink link sharing channel on the signal power total value of all signals, this signal power total value and predetermined power threshold are compared, perhaps, to calculate the signal power total value of certain signal specific (as up reference signal) on this physical uplink link sharing channel that obtains in step S405, compare with predetermined power threshold, this signal power total value is less than predetermined power threshold, think that described physical uplink link sharing channel is unavailable.for example, suppose the signal power total value of this physical uplink link sharing channel 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 device 1 determines that this physical uplink link sharing channel is unavailable, namely, subscriber equipment may be lost the uplink grant license that eNB is sent to this subscriber equipment, in step S403, configuration device 1 will according to and described subscriber equipment between physical uplink control channel, carry out the second channel decoding, as this POW_MEA＞POW_THD, in step S406, configuration device 1 is determined to have signal on this physical uplink link sharing channel, this shared channel is decoded, reply or negative response with the confirmation that obtains to transmit on this shared channel, and further reply according to this, confirm whether this first down link signal is correctly received.
Less than described predetermined power total value, in step S403, the physical uplink control channel between configuration device 1 basis and described subscriber equipment is carried out the second channel decoding, to obtain described transmission state when described signal power total value.particularly, when in step S407, the configuration device 1 described signal power total value of judgement is less than described predetermined power total value, think that namely described physical uplink link sharing channel is unavailable, this subscriber equipment may be lost the uplink grant license that eNB is sent to this subscriber equipment, in step S403, physical uplink control channel between configuration device 1 basis and this subscriber equipment, carry out the second channel decoding, to obtain the transmission state of this first down link signal, as decoding according to this second channel, obtain to confirm to reply, this configuration device 1 determines that described the first down link signal sends successfully, in step S404, configuration device 1 will send a new down link signal to this subscriber equipment, as the second down link signal, when according to this second channel decoding, obtain negative response, this configuration device 1 determines that described the first down link signal sends unsuccessfully, in step S404, configuration device 1 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 comprises following any one at least:
-configurable parameter;
-empirical value;
-the adaptation value that can regulate according to the quantity of Physical Resource Block.
Particularly, predetermined power threshold includes but not limited to the configurable parameter by factory setting, or empirical value determined according to 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 of quarternary phase-shift keying (QPSK), 16 systems or 32 systems etc.For example, suppose that eNB has configured more Physical Resource Block, adopted higher modulation scheme, the value of predetermined power threshold POW_THD is larger.Those skilled in the art will be understood that above-mentioned predetermined power threshold only for giving an example, and other predetermined power thresholds existing or that may occur from now on also should be included in protection range of the present invention as applicable to the present invention, and are contained in this at this with way of reference.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and in the situation that do not deviate from spirit of the present invention or essential characteristic, can realize the present invention with other concrete form.Therefore, no matter from which point, all should regard embodiment as exemplary, and be nonrestrictive, scope of the present invention is limited by claims rather than above-mentioned explanation, therefore is intended to be included in the present invention dropping on the implication that is equal to important document of claim and all changes in scope.Any Reference numeral in claim should be considered as limit related claim.In addition, obviously other unit or step do not got rid of in " comprising " word, and odd number is not got rid of plural number.A plurality of unit of stating in the device claim or device also can 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 does not represent any specific order.
Claims (8)
1. method that is used at the eNB configuring downlink, wherein, the method comprises:
A sends the first down link signal to subscriber equipment;
Physical uplink link sharing channel between b basis and described subscriber equipment carries out the first channel-decoding, to obtain the transmission state of described the first down link signal;
C is when described first channel-decoding when failure, according to and described subscriber equipment between physical uplink control channel, carry out the second channel decoding, to obtain described transmission state;
D is according to described transmission state, the down link between configuration and described subscriber equipment.
2. method according to claim 1, wherein, described steps d comprises:
-when comprising, described transmission state confirms to reply, send the second down link signal to described subscriber equipment;
-when described transmission state comprises negative response, resend described the first down link signal to described subscriber equipment.
3. method according to claim 1 and 2, wherein, the method also comprises:
-judge whether described the first channel-decoding obtains discontinuous transmission;
-when obtaining described discontinuous transmission, calculate the signal power total value of signal in described physical uplink link sharing channel;
-judge that whether described signal power total value is less than the predetermined power total value;
Wherein, described step c comprises:
-when described signal power total value less than described predetermined power total value, according to and described subscriber equipment between physical uplink control channel, carry out second channel decoding, to obtain described transmission state.
4. method according to claim 3, wherein, described predetermined power threshold comprises following any one at least:
-configurable parameter;
-empirical value;
-the adaptation value that can regulate according to the quantity of Physical Resource Block.
5. configuration device that is used at the eNB configuring downlink, wherein, this equipment comprises:
Dispensing device is used for sending the first down link signal to subscriber equipment;
The first decoding device is used for the physical uplink link sharing channel between basis and described subscriber equipment, carries out the first channel-decoding, to obtain the transmission state of described the first down link signal;
The second decoding device is used for when described the first channel-decoding failure, according to and described subscriber equipment between physical uplink control channel, carry out second channel and decode, to obtain described transmission state;
Inking device is used for according to described transmission state, the down link between configuration and described subscriber equipment.
6. configuration device according to claim 5, wherein, described inking device is used for:
-when comprising, described transmission state confirms to reply, send the second down link signal to described subscriber equipment;
-when described transmission state comprises negative response, resend described the first down link signal to described subscriber equipment.
7. according to claim 5 or 6 described configuration devices, wherein, this equipment also comprises:
State judging device is used for judging whether described the first channel-decoding obtains discontinuous transmission;
Output computation device is used for calculating the signal power total value of signal in described physical uplink link sharing channel when obtaining described discontinuous transmission;
The power comparison means is used for judging that whether described signal power total value is less than the predetermined power total value;
Wherein, described the second decoding device is used for:
-when described signal power total value less than described predetermined power total value, according to and described subscriber equipment between physical uplink control channel, carry out second channel decoding, to obtain described transmission state.
8. configuration device according to claim 7, wherein, described predetermined power threshold comprises following any one at least:
-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 |
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| CN201110337947.8A CN103095390B (en) | 2011-10-31 | 2011-10-31 | A kind of method and apparatus for configurating downlink link in the enb |
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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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