CN101383636B - Resource dividing method, method, apparatus and equipment for sending uplink pilot - Google Patents
Resource dividing method, method, apparatus and equipment for sending uplink pilot Download PDFInfo
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Abstract
The invention discloses a resource dividing method based on the existence of an up pilot time slot (UpPTS) and a transmission frame of the up special time slot. The method also comprises the following steps: a base station is positioned in the UpPTS time slot, and marks off time-frequency resources occupied by a terminal used for sending an up channel detection pilot signal, and time-frequency resources occupied by the terminal used for sending other signals; the base station respectively packages indications of the time-frequency resources, and broadcasts and sends in the coverage. The invention also discloses a method and a device and base station side/terminal equipment, which are used for sending the up pilot frequency. The resource dividing method, and the method and the device and the base side/terminal equipment sending the up pilot frequency are adopted, thereby the transmission speed of business data in the conventional time slot, and the availability of resources of the UpPTS time slot and the transmission frame of the up special time slot are improved.
Description
Technical field
The present invention relates to the ascending pilot frequency transmission technology; Relate in particular to the method for a kind of division ascending pilot frequency (UpPTS) time slot, this uplink special time slot place running time-frequency resource and send ascending channel detecting (CS, channelsounding) method of pilot tone, device and base station side/terminal side equipment.
Background technology
After having introduced OFDM (OFDM) technology in Long Term Evolution (LTE, the Long Term Evolution) system of 3G wireless interface technology, orthogonal sub-carriers becomes a kind of basic resource unit.The OFDM technology is mainly used in and is different user equipment (UE) distribution different subcarriers, and carries out the scheduling of dynamic frequency adjustment.
In addition, for the ease of up time-frequency channel is carried out channel quality estimation, two kinds of ascending pilot frequencies in the LTE system, have also been designed.First kind of ascending pilot frequency for the 3G system in ascending pilot frequency upstream data demodulation corresponding, that be used for channel quality estimation and correlation demodulation (DM, Data Demodulation) pilot tone.Second kind of ascending pilot frequency is to be exclusively used in the up CS pilot tone that uplink signal-channel quality is estimated.In general, the duration of up CS pilot tone is an OFDM symbol lengths.
Wherein, To up CS pilot tone, because the working band of UE is generally less than the bandwidth of LTE system, therefore; Under the not enough situation of work at present band channel worsening condition or frequency resource, base station node B need adjust to UE on other rational frequency bands and work.The process of adjustment is specially: select other frequency bands outside the UE working band, UE sends to Node B with up CS pilot tone earlier on these other frequency bands.Then, Node B carries out corresponding uplink signal-channel quality according to up CS pilot tone and estimates, and judges the channel circumstance quality of this frequency band according to the uplink signal-channel quality results estimated.After this frequency band of judgement is to can be used as the reasonable frequency band of UE work, then UE is adjusted on this frequency band and work.
And then, adopt in the LTE system of time division duplex (TDD, Time Division Duplex) mode, because characteristics of TDD mode are the same frequencies of up-downgoing channel occupancy, therefore have reciprocity, the symmetry of up-downgoing channel.So; Utilize the symmetry of up-downgoing channel; Can also be used for the purpose that antenna is adjusted according to the uplink signal-channel quality results estimated, be according to the uplink signal-channel quality results estimated and infer the quality that down channel, thereby downlink mechanism or parameter are carried out some adjustment; Such as, emission mode, figuration parameter, antenna factor or the like.
At present, in the LTE system that adopts the TDD mode, the transmission of up CS pilot signal is placed in the conventional ascending time slot.As shown in Figure 1, Fig. 1 is the composition sketch map of the frame structure of employing TDD mode LTE system.Wherein, a long radio frames of 10ms is divided into the field of two 5ms, and each field is called a sub-frame.Each subframe also comprises three special time slots except comprising seven conventional time slots.And, generally seven conventional time slots are represented with TS0～TS6 respectively.
Here, in the frame structure shown in Figure 1, TS0, TS4, TS5 and TS6 are conventional descending time slot; TS1, TS2 and TS3 are conventional ascending time slot.And, there are three special time slots between TS0 in this frame structure and the TS1, be used to transmit the up-downgoing targeting sequencing.Wherein, descending pilot frequency (DwPTS) time slot is filled with left oblique line and is represented; Ascending pilot frequency (UpPTS) time slot is filled with right oblique line and is represented; Be protection interval (GP) between DwPTS and the UpPTS, fill with horizontal line and represent.TS0～TS6 can be through the position configuration up-downgoing transmission ratio of up-downgoing switching point.First switching point position shown in Fig. 1 is between TS0 and TS1, and up switching point under being, promptly TS0 is used to transmit downlink frame, and TS1 is used to transmit uplink frame.Second switching point position is between TS3 and TS4, and for the up-downgoing switching point, promptly TS3 is used to transmit uplink frame, and TS4 is used to transmit downlink frame.
In sum, the shortcoming of prior art is: in the LTE system that adopts the TDD mode, send owing to up CS pilot tone is placed in the conventional ascending time slot, and need take certain running time-frequency resource, such as several number of sub-carrier in the OFDM symbol.Therefore, adopt prior art to cause the decline of service data transmission rate in the conventional time slot.In addition, because this special time slot of UpPTS time slot is not used in service data transmission, its unique purposes is used in the non-synchronized random access procedure, sending random access leader sequence by UE, accomplishes the non-synchronized random access procedure of UE.Therefore, when the load of non-synchronized random access procedure was very low, the resource utilization of UpPTS time slot will be very low, thereby, cause waste of radio resources.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of resource dividing method, not only improved the speed of business data transmission in the conventional time slot, and has improved the resource utilization of UpPTS time slot, this uplink special time slot.
Another object of the present invention provides a kind of method of sending ascending channel detecting pilot frequency, not only improved the speed of business data transmission in the conventional time slot, and has improved the resource utilization of UpPTS time slot, this uplink special time slot.
Another purpose of the present invention is to provide a kind of device that sends ascending channel detecting pilot frequency, not only improved the speed of business data transmission in the conventional time slot, and has improved the resource utilization of UpPTS time slot, this uplink special time slot.
A purpose more of the present invention is to provide a kind of base station side/terminal side equipment that sends ascending channel detecting pilot frequency, not only improved the speed of business data transmission in the conventional time slot, and has improved the resource utilization of UpPTS, this uplink special time slot.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of resource dividing method, this method are based on the transmission frame that has uplink special time slot UpPTS time slot, and this method is further comprising the steps of:
A, base station node B mark off user equipment (UE) and are used to send the shared running time-frequency resource of ascending channel detecting CS pilot signal, and be used to send the shared running time-frequency resource of other signals in the UpPTS time slot;
After B, Node B encapsulated the indication information of said running time-frequency resource respectively, broadcasting was sent in coverage.
Wherein, said other signals comprise the random access leader sequence that UE sends in the random access procedure.
Wherein, step B further comprises: after the division of said running time-frequency resource is readjusted, the indication information of adjusting the back running time-frequency resource is encapsulated respectively, and broadcasting is sent in coverage.
Wherein, in the steps A, the mode that Node B divides comprises: the mode that frequency division multiplexing, time division multiplexing or frequency division multiplexing and time division multiplexing combine.
Wherein, said UE is used to send the evenly distribution in whole bandwidth of cell scope of the shared running time-frequency resource of up CS pilot signal.
A kind of method of sending ascending channel detecting pilot frequency, Node B marks off UE and is used to send the shared running time-frequency resource of up CS pilot signal in the UpPTS time slot; This method is further comprising the steps of:
A, Node B will comprise that the position of said running time-frequency resource, the information of signal format are encapsulated in the up CS pilot tone control command, send to UE;
After B, said UE receive said control command,, send up CS pilot signal in the position of running time-frequency resource described in the UpPTS time slot.
Wherein, also comprise behind the step B:
C, said Node B carry out corresponding uplink signal-channel quality and estimate according to the said up CS pilot signal that receives.
Wherein, in the steps A, also be packaged with in the said control command: in the uplink conventional time slot, the UE of division is used to send the information of the shared running time-frequency resource of up CS pilot signal position;
Accordingly, step B also comprises: up CS pilot signal is sent in the position at running time-frequency resource described in the said uplink conventional time slot.
Wherein, also comprise behind the step C:
D, said Node B carry out frequency domain dispatching or adjust downlink mechanism/parameter according to said uplink signal-channel quality results estimated.
Wherein, in the steps A, said Node B sends to UE with said control command and is specially: any transmission means with in the control command of the control command of the control command of layer one/layer two, layer two or layer three is sent.
Wherein, among the step B, said UE sends to said Node B with the mode of uplink synchronous with up CS pilot signal.
Wherein, among the step B, after said UE received said control command, according to the indication of said control command, said UE sent to said Node B with said up CS pilot signal with the single sending mode; Perhaps,
Said UE is sent in said up CS pilot signal interior repeatedly sending mode and sends to said Node B to comprise the cycle.
Wherein, among the step B, in said UpPTS time slot, an above UE sends to said Node B with said up CS pilot signal on identical running time-frequency resource position; And, distinguish through different code word between the up CS pilot signal that different UEs is sent;
Accordingly, step C further is: after said Node B obtains the up CS pilot signal of an above UE transmission, earlier through the code word of each UE self, distinguish the up CS pilot signal that different UEs is sent, carry out corresponding uplink signal-channel quality again and estimate.
Wherein, among the step B, in said UpPTS time slot, said UE uses all or part of said running time-frequency resource, and on the position of corresponding all or part of running time-frequency resource, said up CS pilot signal is sent to said Node B.
A kind of device that sends ascending channel detecting pilot frequency, this device comprises: base station side running time-frequency resource division unit, base station side encapsulation unit, base station side transmission/receiving element, base station side channel quality estimation unit, end side transmission/receiving element; Wherein,
Base station side running time-frequency resource division unit in the UpPTS time slot, is used to mark off UE and is used to send the shared running time-frequency resource of up CS pilot signal, and the information of said running time-frequency resource position is sent to said base station side encapsulation unit;
The base station side encapsulation unit is used for the position that is included in said UpPTS time slot, said running time-frequency resource; And the information of signal format is encapsulated in the up CS pilot tone control command, and sends to said base station side transmission/receiving element;
Base station side transmission/receiving element is used to receive said control command, and sends to said end side transmission/receiving element; Receive the said up CS pilot signal that said end side transmission/receiving element sends, and send to said base station side channel quality estimation unit;
End side transmission/receiving element is used to receive said control command, and according to the indication of the said control command of obtaining, in the position of the running time-frequency resource described in the UpPTS time slot, up CS pilot signal is sent to said base station side transmission/receiving element;
The base station side channel quality estimation unit, be used to obtain said up CS pilot signal after, carry out corresponding uplink signal-channel quality and estimate.
Wherein, Said base station side encapsulation unit; Being further used for will be in the uplink conventional time slot, and the information that the UE of division is used for sending the shared running time-frequency resource of up CS pilot signal position is encapsulated into up CS pilot tone control command, and sends to said base station side transmission/receiving element;
Accordingly, said end side transmission/receiving element is further used in said uplink conventional time slot, the position of said running time-frequency resource, and up CS pilot signal is sent to said base station side transmission/receiving element.
Wherein, this device also comprises base station side frequency domain dispatching unit, after being used for obtaining said uplink signal-channel quality results estimated from said base station side channel quality estimation unit, according to said uplink signal-channel quality results estimated, carries out frequency domain dispatching.
Wherein, This device also comprises downlink mechanism/parameter adjustment unit; After being used for obtaining said uplink signal-channel quality results estimated from said base station side channel quality estimation unit, according to said uplink signal-channel quality results estimated, adjustment downlink mechanism/parameter.
Wherein, Said base station side transmission/receiving element, any transmission means that is further used in the control command of control command, layer two control command or layer three according to layer one/layer two sends to said end side transmission/receiving element with said up CS pilot tone control command.
Wherein, this device also comprises the end side control unit, after being used for obtaining said control command from said end side transmission/receiving element, controls said end side transmission/receiving element and sends said up CS pilot signal based on different transmit mechanisms;
Accordingly, said end side transmission/receiving element is further used for according to said different transmit mechanisms, will be in said UpPTS time slot, the position of said running time-frequency resource, said up CS pilot signal is sent to said base station side transmission/receiving element.
Wherein, said end side control unit is further used for the transmit mechanism with uplink synchronous, sends to said end side transmission/receiving element;
Accordingly, said end side transmission/receiving element is further used for the mode of uplink synchronous said up CS pilot signal being sent to said base station side transmission/receiving element.
Wherein, said end side control unit is further used for difference is sent the transmit mechanism of number of times, sends to said end side transmission/receiving element;
Accordingly, said end side transmission/receiving element is further used for the single sending mode, or comprises the repeatedly sending mode of cycle in being sent in, and said up CS pilot signal is sent to said base station side transmission/receiving element.
Wherein, said end side control unit is further used for the transmit mechanism that sends on identical running time-frequency resource position, sends to said end side transmission/receiving element;
Accordingly, said end side transmission/receiving element is further used for in said UpPTS time slot, and an above UE sends to said base station side transmission/receiving element with said up CS pilot signal on the position of identical running time-frequency resource.
Wherein, said end side control unit is further used for said UE is used the transmit mechanism of all or part of said running time-frequency resource, sends to said end side transmission/receiving element;
Accordingly; Said end side transmission/receiving element; Be further used in said UpPTS time slot; Said UE uses all or part of said running time-frequency resource, and on the position of corresponding all or part of running time-frequency resource, said up CS pilot signal is sent to said base station side transmission/receiving element.
A kind of base station equipment that sends ascending channel detecting pilot frequency, this equipment comprises: base station side running time-frequency resource division unit, base station side encapsulation unit, base station side transmission/receiving element, base station side channel quality estimation unit; Wherein,
Base station side running time-frequency resource division unit in the UpPTS time slot, is used to mark off UE and is used to send the shared running time-frequency resource of up CS pilot signal, and the information of said running time-frequency resource position is sent to said base station side encapsulation unit;
The base station side encapsulation unit is used for the position that is included in said UpPTS time slot, said running time-frequency resource; And the information of signal format is encapsulated in the up CS pilot tone control command, and sends to said base station side transmission/receiving element;
Base station side transmission/receiving element is used to receive said control command, and sends to end side transmission/receiving element; Receive the said up CS pilot signal that said end side transmission/receiving element sends, and send to said base station side channel quality estimation unit;
The base station side channel quality estimation unit, be used to obtain said up CS pilot signal after, carry out corresponding uplink signal-channel quality and estimate.
Wherein, Said base station side encapsulation unit; Being further used for will be in the uplink conventional time slot, and the information that the UE of division is used for sending the shared running time-frequency resource of up CS pilot signal position is encapsulated into up CS pilot tone control command, and sends to said base station side transmission/receiving element.
Wherein, this equipment also comprises: base station side frequency domain dispatching unit, after being used for obtaining said uplink signal-channel quality results estimated from said base station side channel quality estimation unit, according to said uplink signal-channel quality results estimated, carry out frequency domain dispatching.
Wherein, This equipment also comprises: downlink mechanism/parameter adjustment unit; After being used for obtaining said uplink signal-channel quality results estimated from said base station side channel quality estimation unit, according to said uplink signal-channel quality results estimated, adjustment downlink mechanism/parameter.
Wherein, Said base station side transmission/receiving element, any transmission means that is further used in the control command of control command, layer two control command or layer three according to layer one/layer two sends to end side transmission/receiving element with said up CS pilot tone control command.
A kind of terminal side equipment that sends ascending channel detecting pilot frequency; This equipment comprises end side transmission/receiving element; Be used to receive said control command; And, in said UpPTS time slot, the position of said running time-frequency resource, up CS pilot signal is sent to base station side transmission/receiving element according to the indication of the said control command of obtaining.
Wherein, said end side transmission/receiving element is further used in said uplink conventional time slot, the position of said running time-frequency resource, and up CS pilot signal is sent to said base station side transmission/receiving element.
Wherein, this equipment also comprises the end side control unit, after being used for obtaining said control command from said end side transmission/receiving element, controls said end side transmission/receiving element and sends said up CS pilot signal based on different transmit mechanisms;
Accordingly, said end side transmission/receiving element is further used for according to selected transmit mechanism, will be in said UpPTS time slot, the position of said running time-frequency resource, said up CS pilot signal is sent to said base station side transmission/receiving element.
Wherein, said end side control unit is further used for the transmit mechanism with uplink synchronous, sends to said end side transmission/receiving element;
Accordingly, said end side transmission/receiving element is further used for the mode of uplink synchronous said up CS pilot signal being sent to said base station side transmission/receiving element.
Wherein, said end side control unit is further used for difference is sent the transmit mechanism of number of times, sends to said end side transmission/receiving element;
Accordingly, said end side transmission/receiving element is further used for the single sending mode, or comprises the repeatedly sending mode of cycle in being sent in, and said up CS pilot signal is sent to said base station side transmission/receiving element.
Wherein, said end side control unit is further used for the transmit mechanism that sends on identical running time-frequency resource position, sends to said end side transmission/receiving element;
Accordingly, said end side transmission/receiving element is further used for in said UpPTS time slot, and an above UE sends to said base station side transmission/receiving element with said up CS pilot signal on identical running time-frequency resource position.
Wherein, said end side control unit is further used for said UE is used the transmit mechanism of all or part of said running time-frequency resource, sends to said end side transmission/receiving element;
Accordingly; Said end side transmission/receiving element; Be further used in said UpPTS time slot; Said UE uses all or part of said running time-frequency resource, and on the position of corresponding all or part of running time-frequency resource, said up CS pilot signal is sent to said base station side transmission/receiving element.
The present invention has the following advantages:
One, the running time-frequency resource that adopts the present invention to divide, because UE utilizes UpPTS time slot, this uplink special time slot that up CS pilot tone is sent to Node B, and conventional time slot only is used to send business datum.Therefore, the not influence of transmission rate to conventional time slot services data compared to adopting prior art, has improved the speed of business data transmission in the conventional time slot.
Two, the running time-frequency resource that adopts the present invention to divide owing to increased the purposes of UpPTS time slot, this uplink special time slot, therefore, compared to adopting prior art, has improved the resource utilization of UpPTS time slot.
Three, the send mode of up CS pilot tone of the present invention can cooperatively interact with the send mode of up CS pilot tone of the prior art, helps to improve the precision that ascending resource distributes.
Description of drawings
Fig. 1 adopts the composition sketch map of the frame structure of TDD mode LTE system for prior art;
Fig. 2 is the realization flow sketch map of the principle of resource dividing method of the present invention;
Fig. 3 divides the composition sketch map of the frame structure of UpPTS running time-frequency resource with the frequency division multiplexing mode for the present invention;
Fig. 4 divides the composition sketch map of the frame structure of UpPTS running time-frequency resource with time division multiplexing mode for the present invention;
The mode that Fig. 5 combines with frequency division and time division multiplexing for the present invention is divided the composition sketch map of the frame structure of UpPTS running time-frequency resource;
The realization flow sketch map of Fig. 6 up CS pilot frequency system principle for the present invention sends.
Embodiment
Core concept of the present invention is: UE utilizes UpPTS time slot, this uplink special time slot to send up CS pilot signal to Node B.
For making the object of the invention, technical scheme and advantage clearer, below lift embodiment and with reference to accompanying drawing, to further explain of the present invention.
As shown in Figure 2, a kind of resource dividing method, this method is based on the transmission frame that has UpPTS time slot, this uplink special time slot, and this method is further comprising the steps of:
Here, UE is used to send the shared running time-frequency resource of up CS pilot signal and can be in whole bandwidth of cell scope evenly distributes.Thereby, Node B can obtain in the used bandwidth range in whole sub-district, the uplink signal-channel quality results estimated, and, carry out the scheduling of resource process according to this uplink signal-channel quality results estimated.Made full use of the gain that frequency diversity is brought.
Here, other signals can be the random access leader sequences that UE sends in the random access procedure, are used to accomplish the random access procedure of UE, realize the uplink synchronous between UE and the Node B.And, through dividing the UpPTS time slot, random access leader sequence and up CS pilot signal can be sent respectively on the running time-frequency resource position of dividing separately, avoided random access leader sequence, with up CS pilot signal between generation mutual interference mutually.
Here, the Node B mode of dividing running time-frequency resource comprises: the mode that the mode of frequency division multiplexing, time-multiplexed mode or frequency division multiplexing and time division multiplexing combine.Fig. 3, Fig. 4 and Fig. 5 have provided these dividing mode frame structure composition sketch map of an instance separately respectively.
Fig. 3 has a sub-frame for divide the composition sketch map of the frame structure of running time-frequency resource with the frequency division multiplexing mode among Fig. 3.In this subframe, represent these conventional time slots of TS0～TS6 with the part that sparse left oblique line is filled.For three special time slots between TS0 and TS1, represent the DwPTS time slot with the part that dense left oblique line is filled, represent the GP time slot, remaining expression UpPTS time slot with the part that horizontal line is filled.If current the UpPTS time slot is divided into two parts running time-frequency resource; A part is used to send random access leader sequence; Another part is used to send up CS pilot signal, then from Fig. 3, can intuitively know, adopts the frequency division multiplexing mode to divide the running time-frequency resource of UpPTS time slot.Wherein, represent to be used to send the shared running time-frequency resource of up CS pilot signal, represent to be used to send the shared running time-frequency resource of random access leader sequence with the part that dense point is filled with the part that sparse point is filled.
Fig. 4 is a composition sketch map of dividing the frame structure of running time-frequency resource with time division multiplexing mode, among Fig. 4, comprises that sequence number is that odd number and sequence number are two sub-frame of even number.In two sub-frame, the part of all filling with sparse left oblique line is represented these conventional time slots of TS0～TS6.For three special time slots between TS0 and TS1, the part of all filling with dense left oblique line is represented the DwPTS time slot, representes the GP time slot, remaining expression UpPTS time slot with the part that horizontal line is filled.If current the UpPTS time slot is divided into two parts running time-frequency resource; A part is used to send random access leader sequence; Another part is used to send up CS pilot signal, then from Fig. 4, can intuitively know, adopts time division multiplexing mode to divide the running time-frequency resource of UpPTS time slot.Wherein, be that UpPTS time slot in the odd number subframe is filled with dense point with sequence number, whole running time-frequency resources of expression UpPTS time slot are used to send random access leader sequence.With sequence number is that UpPTS time slot in the even number subframe is filled with sparse point, and whole running time-frequency resources of expression UpPTS time slot are used to send up CS pilot signal.
Fig. 5 is a composition sketch map of dividing the frame structure of running time-frequency resource with the mode that frequency division and time division multiplexing combine, among Fig. 5, comprises that sequence number is that odd number and sequence number are two sub-frame of even number.In two sub-frame, the part of all filling with sparse left oblique line is represented these conventional time slots of TS0～TS6.For three special time slots between TS0 and TS1, the part of all filling with dense left oblique line is represented the DwPTS time slot, representes the GP time slot, remaining expression UpPTS time slot with the part that horizontal line is filled.If current the UpPTS time slot is divided into two parts running time-frequency resource; A part is used to send random access leader sequence; Another part is used to send up CS pilot signal; Then from Fig. 5, can intuitively know the mode that adopts frequency division multiplexing and time division multiplexing to combine, the running time-frequency resource of division UpPTS time slot.Wherein, in each subframe, the part of all filling with sparse point representes to be used to send the shared running time-frequency resource of up CS pilot signal, representes to be used to send the shared running time-frequency resource of random access leader sequence with the part that dense point is filled.
The indication information that step 102, Node B will divide the back running time-frequency resource earlier encapsulates respectively, and is encapsulated in the system message, and then, broadcasting is sent in coverage.
Here, so-called system message refers to: one type of broadcast that periodically send to UE the base station, and comprising some basic setup information about transmission.The name of this message is just named system message or system broadcast message, periodic broadcasting.
Such as, as shown in Figure 4, Node B divides the UpPTS time slot earlier, and the running time-frequency resource after the division is specially: sequence number is in the subframe of even number, and whole running time-frequency resources of UpPTS time slot are used to send random access leader sequence; Sequence number is in the subframe of odd number, and whole running time-frequency resources of UpPTS time slot are used to send up CS pilot signal.Then, the running time-frequency resource after Node B will divide is encapsulated in the system message broadcasts.So, the UE that inserts at random is through reading this system message, can be known as the position that it divides running time-frequency resource, afterwards, only use sequence number as in the even number subframe, whole running time-frequency resources of UpPTS time slot insert at random.
Wherein, Step 102 further is: to the variation of system applies environment, need corresponding to current system, after the division of said running time-frequency resource is readjusted; The indication information of adjustment back running time-frequency resource is encapsulated respectively, and broadcasting is sent in coverage.
Here, being changed to of system applies environment: variation has taken place in the current load that inserts at random of UE, and so, current system needs: can be to increase or reduce the running time-frequency resource that is used to send random access leader sequence.If change from small to big to load, then current need for: need to increase the running time-frequency resource that is used to send random access leader sequence; Then step 102 further is: Node B confirms current running time-frequency resource shared share in said time slot, and confirms said adjustment information.That is to say that in said time slot, the shared share of running time-frequency resource that will be used to send random access leader sequence is transferred big, to guarantee to accomplish the random access procedure of UE.
As shown in Figure 6, a kind of method of sending ascending channel detecting pilot frequency, this method may further comprise the steps:
Step 201, Node B mark off UE and are used to send the shared running time-frequency resource of up CS pilot signal in the UpPTS time slot.
Step 202, Node B will comprise that the position of said running time-frequency resource, the information of signal format are encapsulated in the up CS pilot tone control command, send to UE.
Here, said control command is used for specifying UE at the UpPTS time slot, and the time-frequency position, signal format of sending up CS pilot signal are such as information such as code words.
Wherein, Node B sends to UE with said control command and is specially: send with any transmission means in the control command of the control command of the control command of layer one/layer two, layer two or layer three.
Here, the control command of so-called layer one/layer two refers to: be encapsulated as the control command of resource allocation, on layer one/layer two control channel, transmit.The control command of so-called layer two refers to: be encapsulated as the control command that medium are got involved control (MAC) layer.The control command of so-called layer three refers to: the control command that is encapsulated as the special measurement of Radio Resource control (RRC) layer.
The main distinction between above-mentioned three kinds of transmission meanss is the degree of reliability and the propagation delay time size of control command transmission, according to the degree of reliability is successively from high in the end: the control command of the control command of the control command of layer three, layer two, layer one/layer two; According to propagation delay time be successively from small to large: the control command of the control command of layer one/layer two, the control command of layer two, layer three.
After step 203, UE receive said control command,, up CS pilot signal is sent to Node B in position corresponding to running time-frequency resource described in the UpPTS time slot.
Here, if the information that encapsulates in the said control command, send up CS pilot signal running time-frequency resource position comprises two types.Wherein, one type is: in UpPTS time slot, this special time slot, the UE of division is used to send the information of the shared running time-frequency resource of up CS pilot signal position; Another kind ofly be: at the uplink conventional time slot, in TS1 or TS2, the UE of division is used to send the information of the shared running time-frequency resource of up CS pilot signal position.
Then step 203 further is: after UE receives said control command, in the position corresponding to running time-frequency resource described in the UpPTS time slot, up CS pilot signal is sent to Node B; Simultaneously, in corresponding to the uplink conventional time slot, the position of said running time-frequency resource, UE sends to Node B with up CS pilot signal.That is to say that the transmission position of up CS pilot signal both can be in the UpPTS time slot, also can be in other uplink conventional time slots.And the send mode of these two kinds of up CS pilot signals can be used in combination.
Step 204, Node B carry out corresponding uplink signal-channel quality and estimate according to the up CS pilot signal that receives.
Step 205, Node B carry out frequency domain dispatching or adjust downlink mechanism/parameter according to the uplink signal-channel quality results estimated.
Also comprise following situation to above-mentioned steps 203 concrete processing procedures:
In first kind of situation, the step 203, UE sends to said Node B with the mode of uplink synchronous with up CS pilot signal.
Specifically, in the prior art, in a sub-district of GSM; Since the position of each UE be random dispersion in network, different constantly if the signal that these UE send arrives the NodeB that is positioned at network side, then will produce strong interference between the signal; Systematic function also can obviously descend; Therefore, in common up channel, the signal demand that UE sends satisfies this condition of uplink synchronous.And the foundation of the uplink synchronous of being mentioned is here accomplished through random access procedure.But in random access procedure self, in the UpPTS time slot, the process of transmitting of random access leader sequence can't satisfy this condition of uplink synchronous.Yet; Uplink synchronous of the present invention is set up, and the transmission of up CS pilot signal adopts the uplink synchronous mode to send, and its advantage is in identical running time-frequency resource; Can design more code word and be used for different user, thereby improve the design capacity of up CS pilot signal.
In second kind of situation, the step 203, after UE received said control command, according to the indication of said control command, UE sent to Node B with up CS pilot signal with the single sending mode; Perhaps, UE is sent in up CS pilot signal interior repeatedly sending mode and sends to Node B to comprise the cycle.
In the third situation, the step 203, in corresponding to the UpPTS time slot, a plurality of UE send to Node B with up CS pilot signal on identical running time-frequency resource position, and, distinguish through different code word between the up CS pilot signal that different UEs is sent.
Accordingly, step 204 further is: after Node B obtains the up CS pilot signal of a plurality of UE transmissions, earlier through the code word of each UE self, distinguish the up CS pilot signal that different UEs is sent, carry out corresponding uplink signal-channel quality again and estimate.
Here, a plurality of UE up CS pilot signal of sending can use identical, corresponding to the position of the said running time-frequency resource in the UpPTS time slot.So, between the up CS pilot signal that each UE sends, need to use each UE, different code word to distinguish through Node B.
On identical running time-frequency resource position, send up CS pilot signal such as the Node B control UE#1 of, network side and UE#2.And the up CS pilot signal that UE#1 sends is used code word 1, and the up CS pilot signal that UE# 2 sends is used code word 2.So; What the Node B of network side received is that two UE send the composite signal of up CS pilot signal; Node B carries out matched filtering through using code word 1, the up CS pilot signal of UE#1 is separated and is handled, thereby carry out the uplink signal-channel quality estimation to UE#1; Correspondingly, in like manner can know the signal processing mode of UE# 2.
The running time-frequency resource position that the up CS pilot signal of appointment is sent in the 4th kind of situation, the said control command can for: in the UpPTS time slot, divide and come out to be used to send all or part of of the shared running time-frequency resource of up CS pilot signal.Be interpreted as set if will be used to send the shared running time-frequency resource of up CS pilot signal, the running time-frequency resource position that the up CS pilot signal of appointment is sent in the then said control command is appreciated that the subclass into this set.
Accordingly, in the step 203, in corresponding to the UpPTS time slot, UE uses all or part of said running time-frequency resource, and on the position of corresponding all or part of running time-frequency resource, up CS pilot signal is sent to Node B.
A kind of device that sends ascending channel detecting pilot frequency, this device comprises: base station side running time-frequency resource division unit, base station side encapsulation unit, base station side transmission/receiving element, base station side channel quality estimation unit, end side transmission/receiving element.
Wherein, base station side running time-frequency resource division unit in the UpPTS time slot, is used to mark off UE and is used to send the shared running time-frequency resource of up CS pilot signal, and the information of said running time-frequency resource position is sent to said base station side encapsulation unit.The base station side encapsulation unit is used for the position that is included in corresponding to said UpPTS time slot, said running time-frequency resource; And the information of signal format is encapsulated in the up CS pilot tone control command, and sends to said base station side transmission/receiving element.
Base station side transmission/receiving element is used to receive said control command, and sends to said end side transmission/receiving element; Receive the said up CS pilot signal that said end side transmission/receiving element sends, and send to said base station side channel quality estimation unit.The base station side channel quality estimation unit, be used to obtain said up CS pilot signal after, carry out corresponding uplink signal-channel quality and estimate.End side transmission/receiving element; Be used to receive said control command; And, in corresponding to said UpPTS time slot, the position of said running time-frequency resource, up CS pilot signal is sent to said base station side transmission/receiving element according to the indication of the said control command of obtaining.
Here; Said base station side transmission/receiving element, any transmission means that is further used in the control command of control command, layer two control command or layer three according to layer one/layer two sends to said end side transmission/receiving element with said up CS pilot tone control command.
Here; Said base station side encapsulation unit; Being further used for will be in the uplink conventional time slot, and the information that the UE of division is used for sending the shared running time-frequency resource of up CS pilot signal position is encapsulated into up CS pilot tone control command, and sends to said base station side transmission/receiving element.Accordingly, said end side transmission/receiving element is further used in corresponding to said uplink conventional time slot, the position of said running time-frequency resource, and up CS pilot signal is sent to said base station side transmission/receiving element.
A kind of device that sends ascending channel detecting pilot frequency, this device also comprise base station side frequency domain dispatching unit.Base station side frequency domain dispatching unit after being used for obtaining said uplink signal-channel quality results estimated from said base station side channel quality estimation unit, according to said uplink signal-channel quality results estimated, carries out frequency domain dispatching.
A kind of device that sends ascending channel detecting pilot frequency, this device also comprise downlink mechanism/parameter adjustment unit.Downlink mechanism/parameter adjustment unit, after being used for obtaining said uplink signal-channel quality results estimated from said base station side channel quality estimation unit, according to said uplink signal-channel quality results estimated, adjustment downlink mechanism/parameter.
A kind of device that sends ascending channel detecting pilot frequency, this device also comprises the end side control unit.The end side control unit after being used for obtaining said control command from said end side transmission/receiving element, is controlled said end side transmission/receiving element and is sent said up CS pilot signal based on different transmit mechanisms.Accordingly, said end side transmission/receiving element is further used for according to selected transmit mechanism, will be in, the position of said running time-frequency resource corresponding to said UpPTS time slot, said up CS pilot signal is sent to said base station side transmission/receiving element.
Here, the function of said end side control unit, different according to the different transmit mechanisms in the said control command of obtaining.And said end side control unit is controlled said end side transmission/receiving element and is sent said up CS pilot signal based on different transmit mechanisms, thereby causes the function of said end side transmission/receiving element also different.So, the concrete function of said end side control unit, said end side transmission/receiving element comprises following situation.
First kind of situation, said end side control unit are further used for the transmit mechanism with uplink synchronous, send to said end side transmission/receiving element.Accordingly, said end side transmission/receiving element is further used for the mode of uplink synchronous said up CS pilot signal being sent to said base station side transmission/receiving element.
Second kind of situation, said end side control unit are further used for difference is sent the transmit mechanism of number of times, send to said end side transmission/receiving element.Accordingly, said end side transmission/receiving element is further used for the single sending mode, or comprises the repeatedly sending mode of cycle in being sent in, and said up CS pilot signal is sent to said base station side transmission/receiving element.
The third situation, said end side control unit are further used for the transmit mechanism that sends on identical running time-frequency resource position, send to said end side transmission/receiving element.Accordingly, said end side transmission/receiving element is further used for in corresponding to said UpPTS time slot, and an above UE sends to said base station side transmission/receiving element with said up CS pilot signal on identical running time-frequency resource position.
The 4th kind of situation, said end side control unit are further used for said UE is used the transmit mechanism of all or part of said running time-frequency resource, send to said end side transmission/receiving element.Accordingly; Said end side transmission/receiving element; Be further used in corresponding to said UpPTS time slot; Said UE uses all or part of said running time-frequency resource, and on the position of corresponding all or part of running time-frequency resource, said up CS pilot signal is sent to said base station side transmission/receiving element.
A kind of base station equipment that sends ascending channel detecting pilot frequency, this equipment comprises: base station side running time-frequency resource division unit, base station side encapsulation unit, base station side transmission/receiving element, base station side channel quality estimation unit.
Wherein, base station side running time-frequency resource division unit in the UpPTS time slot, is used to mark off UE and is used to send the shared running time-frequency resource of up CS pilot signal, and the information of said running time-frequency resource position is sent to said base station side encapsulation unit.The base station side encapsulation unit is used for the position that is included in corresponding to said UpPTS time slot, said running time-frequency resource; And the information of signal format is encapsulated in the up CS pilot tone control command, and sends to said base station side transmission/receiving element.Base station side transmission/receiving element is used to receive said control command, and sends to end side transmission/receiving element; Receive the said up CS pilot signal that said end side transmission/receiving element sends, and send to said base station side channel quality estimation unit.The base station side channel quality estimation unit, be used to obtain said up CS pilot signal after, carry out corresponding uplink signal-channel quality and estimate.
Here; Said base station side encapsulation unit; Being further used for will be in the uplink conventional time slot, and the information that the UE of division is used for sending the shared running time-frequency resource of up CS pilot signal position is encapsulated into up CS pilot tone control command, and sends to said base station side transmission/receiving element.
Here; Said base station side transmission/receiving element, any transmission means that is further used in the control command of control command, layer two control command or layer three according to layer one/layer two sends to end side transmission/receiving element with said up CS pilot tone control command.
A kind of base station equipment that sends ascending channel detecting pilot frequency, this equipment also comprises: base station side frequency domain dispatching unit.Base station side frequency domain dispatching unit, obtain said uplink signal-channel quality results estimated from said base station side channel quality estimation unit after, be used for carrying out frequency domain dispatching according to said uplink signal-channel quality results estimated.
A kind of base station equipment that sends ascending channel detecting pilot frequency, this equipment also comprises: downlink mechanism/parameter adjustment unit.Downlink mechanism/parameter adjustment unit, obtain said uplink signal-channel quality results estimated from said base station side channel quality estimation unit after, be used for according to said uplink signal-channel quality results estimated adjustment downlink mechanism/parameter.
A kind of terminal side equipment that sends ascending channel detecting pilot frequency, this equipment comprises end side transmission/receiving element.End side transmission/receiving element is used to receive said control command, and according to the indication of the said control command of obtaining, and in corresponding to said UpPTS time slot, the position of said running time-frequency resource, up CS pilot signal is sent to base station side transmission/receiving element.
Here, said end side transmission/receiving element is further used in corresponding to said uplink conventional time slot, the position of said running time-frequency resource, and up CS pilot signal is sent to said base station side transmission/receiving element.
A kind of terminal side equipment that sends ascending channel detecting pilot frequency, this equipment also comprises the end side control unit.The end side control unit after being used for obtaining said control command from said end side transmission/receiving element, is controlled said end side transmission/receiving element and is sent said up CS pilot signal based on different transmit mechanisms.Accordingly, said end side transmission/receiving element is further used for according to said different transmit mechanisms, will be in, the position of said running time-frequency resource corresponding to said UpPTS time slot, said up CS pilot signal is sent to said base station side transmission/receiving element.
Here, the function of said end side control unit, different according to the different transmit mechanisms in the said control command of obtaining.And said end side control unit is controlled said end side transmission/receiving element and is sent said up CS pilot signal based on different transmit mechanisms, thereby causes the function of said end side transmission/receiving element also different.So, the concrete function of said end side control unit, said end side transmission/receiving element comprises following situation.
First kind of situation, said end side control unit are further used for the transmit mechanism with uplink synchronous, send to said end side transmission/receiving element.Accordingly, said end side transmission/receiving element is further used for the mode of uplink synchronous said up CS pilot signal being sent to said base station side transmission/receiving element.
Second kind of situation, said end side control unit are further used for difference is sent the transmit mechanism of number of times, send to said end side transmission/receiving element.Accordingly, said end side transmission/receiving element is further used for the single sending mode, or comprises the repeatedly sending mode of cycle in being sent in, and said up CS pilot signal is sent to said base station side transmission/receiving element.
The third situation, said end side control unit are further used for the transmit mechanism that sends on identical running time-frequency resource position, send to said end side transmission/receiving element.Accordingly, said end side transmission/receiving element is further used for in corresponding to said UpPTS time slot, and an above UE sends to said base station side transmission/receiving element with said up CS pilot signal on identical running time-frequency resource position.
The 4th kind of situation, said end side control unit are further used for UE is used the transmit mechanism of all or part of said running time-frequency resource, send to said end side transmission/receiving element.Accordingly; Said end side transmission/receiving element; Be further used in corresponding to said UpPTS time slot; Said UE uses all or part of said running time-frequency resource, and on the position of corresponding all or part of running time-frequency resource, said up CS pilot signal is sent to said base station side transmission/receiving element.
The above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention.
Claims (24)
1. a resource dividing method is characterized in that, this method is based on the transmission frame that has uplink special time slot UpPTS time slot, and this method is further comprising the steps of:
A, base station node B mark off user equipment (UE) and are used to send the shared running time-frequency resource of ascending channel detecting CS pilot signal, and be used to send the shared running time-frequency resource of other signals in the UpPTS time slot;
After B, Node B encapsulated the indication information of said running time-frequency resource respectively, broadcasting was sent in coverage.
2. method according to claim 1 is characterized in that, said other signals comprise the random access leader sequence that UE sends in the random access procedure.
3. method according to claim 1 is characterized in that step B further comprises: after the division of said running time-frequency resource is readjusted, the indication information of adjusting the back running time-frequency resource is encapsulated respectively, and broadcasting is sent in coverage.
4. according to each described method in the claim 1 to 3, it is characterized in that in the steps A, the mode that Node B divides comprises: the mode that frequency division multiplexing, time division multiplexing or frequency division multiplexing and time division multiplexing combine.
5. method according to claim 4 is characterized in that, said UE is used to send the shared running time-frequency resource of up CS pilot signal and in whole bandwidth of cell scope, evenly distributes.
6. a method of sending ascending channel detecting pilot frequency is characterized in that, Node B marks off UE and is used to send the shared running time-frequency resource of up CS pilot signal in the UpPTS time slot; This method is further comprising the steps of:
A, Node B will comprise that the position of said running time-frequency resource, the information of signal format are encapsulated in the up CS pilot tone control command, send to UE;
After B, said UE receive said control command,, send up CS pilot signal in the position of running time-frequency resource described in the UpPTS time slot.
7. method according to claim 6 is characterized in that, also comprises behind the step B:
C, said Node B carry out corresponding uplink signal-channel quality and estimate according to the said up CS pilot signal that receives.
8. method according to claim 6 is characterized in that, in the steps A, also is packaged with in the said control command: in the uplink conventional time slot, the UE of division is used to send the information of the shared running time-frequency resource of up CS pilot signal position;
Accordingly, step B also comprises: up CS pilot signal is sent in the position at running time-frequency resource described in the said uplink conventional time slot.
9. method according to claim 7 is characterized in that, also comprises behind the step C:
D, said Node B carry out frequency domain dispatching or adjust downlink mechanism/parameter according to said uplink signal-channel quality results estimated.
10. according to claim 6,7 or 8 described methods; It is characterized in that; In the steps A, said Node B sends to UE with said control command and is specially: any transmission means with in the control command of the control command of the control command of layer one/layer two, layer two or layer three is sent
Wherein, the control command of said layer one/layer two refers to: be encapsulated as the control command of resource allocation, on layer one/layer two control channel, transmit, the control command of said layer two refers to: be encapsulated as the control command that medium are got involved control (MAC) layer.
11., it is characterized in that among the step B, said UE sends to said Node B with the mode of uplink synchronous with up CS pilot signal according to claim 6 or 7 described methods.
12., it is characterized in that among the step B, after said UE received said control command, according to the indication of said control command, said UE sent to said Node B with said up CS pilot signal with the single sending mode according to claim 6 or 7 described methods; Perhaps,
Said UE is sent in said up CS pilot signal interior repeatedly sending mode and sends to said Node B to comprise the cycle.
13. method according to claim 7 is characterized in that, among the step B, in said UpPTS time slot, an above UE sends to said Node B with said up CS pilot signal on identical running time-frequency resource position; And, distinguish through different code word between the up CS pilot signal that different UEs is sent;
Accordingly, step C further is: after said Node B obtains the up CS pilot signal of an above UE transmission, earlier through the code word of each UE self, distinguish the up CS pilot signal that different UEs is sent, carry out corresponding uplink signal-channel quality again and estimate.
14., it is characterized in that, among the step B according to claim 6 or 7 described methods; In said UpPTS time slot; Said UE uses all or part of said running time-frequency resource, and on the position of corresponding all or part of running time-frequency resource, said up CS pilot signal is sent to said Node B.
15. device that sends ascending channel detecting pilot frequency; It is characterized in that this device comprises: base station side running time-frequency resource division unit, base station side encapsulation unit; Base station side transmission/receiving element, base station side channel quality estimation unit, end side transmission/receiving element; Wherein,
Base station side running time-frequency resource division unit in the UpPTS time slot, is used to mark off UE and is used to send the shared running time-frequency resource of up CS pilot signal, and the information of said running time-frequency resource position is sent to said base station side encapsulation unit;
The base station side encapsulation unit is used for the position that is included in said UpPTS time slot, said running time-frequency resource, and the information of signal format is encapsulated in the up CS pilot tone control command, and sends to said base station side transmission/receiving element;
Base station side transmission/receiving element is used to receive said control command, and sends to said end side transmission/receiving element; Receive the said up CS pilot signal that said end side transmission/receiving element sends, and send to said base station side channel quality estimation unit;
End side transmission/receiving element is used to receive said control command, and according to the indication of the said control command of obtaining, in the position of the running time-frequency resource described in the UpPTS time slot, up CS pilot signal is sent to said base station side transmission/receiving element;
The base station side channel quality estimation unit, be used to obtain said up CS pilot signal after, carry out corresponding uplink signal-channel quality and estimate.
16. device according to claim 15; It is characterized in that; Said base station side encapsulation unit; Being further used for will be in the uplink conventional time slot, and the information that the UE of division is used for sending the shared running time-frequency resource of up CS pilot signal position is encapsulated into up CS pilot tone control command, and sends to said base station side transmission/receiving element;
Accordingly, said end side transmission/receiving element is further used in said uplink conventional time slot, the position of said running time-frequency resource, and up CS pilot signal is sent to said base station side transmission/receiving element.
17. according to claim 15 or 16 described devices; It is characterized in that; This device also comprises base station side frequency domain dispatching unit; After being used for obtaining said uplink signal-channel quality results estimated,, carry out frequency domain dispatching according to said uplink signal-channel quality results estimated from said base station side channel quality estimation unit.
18. according to claim 15 or 16 described devices; It is characterized in that; This device also comprises base station side downlink mechanism/parameter adjustment unit; After being used for obtaining said uplink signal-channel quality results estimated from said base station side channel quality estimation unit, according to said uplink signal-channel quality results estimated, adjustment downlink mechanism/parameter.
19. device according to claim 15; It is characterized in that; Said base station side transmission/receiving element; Any transmission means that is further used in the control command of control command, layer two control command or layer three according to layer one/layer two sends to said end side transmission/receiving element with said up CS pilot tone control command
Wherein, the control command of said layer one/layer two refers to: be encapsulated as the control command of resource allocation, on layer one/layer two control channel, transmit, the control command of said layer two refers to: be encapsulated as the control command that medium are got involved control (MAC) layer.
20. device according to claim 15; It is characterized in that; This device also comprises the end side control unit; After being used for obtaining said control command, controlling said end side transmission/receiving element and send said up CS pilot signal based on different transmit mechanisms from said end side transmission/receiving element;
Accordingly, said end side transmission/receiving element is further used for according to said different transmit mechanisms, in said UpPTS time slot, the position of said running time-frequency resource, said up CS pilot signal is sent to said base station side transmission/receiving element.
21. device according to claim 20 is characterized in that, said end side control unit is further used for the transmit mechanism with uplink synchronous, sends to said end side transmission/receiving element;
Accordingly, said end side transmission/receiving element is further used for the mode of uplink synchronous said up CS pilot signal being sent to said base station side transmission/receiving element.
22. device according to claim 20 is characterized in that, said end side control unit is further used for difference is sent the transmit mechanism of number of times, sends to said end side transmission/receiving element;
Accordingly, said end side transmission/receiving element is further used for the single sending mode, or comprises the repeatedly sending mode of cycle in being sent in, and said up CS pilot signal is sent to said base station side transmission/receiving element.
23. device according to claim 20 is characterized in that, said end side control unit is further used for the transmit mechanism that sends on identical running time-frequency resource position, sends to said end side transmission/receiving element;
Accordingly, said end side transmission/receiving element is further used for in said UpPTS time slot, and an above UE sends to said base station side transmission/receiving element with said up CS pilot signal on the position of identical running time-frequency resource,
Wherein, distinguish through different code word between the up CS pilot signal that different UEs is sent.
24. device according to claim 20 is characterized in that, said end side control unit is further used for said UE is used the transmit mechanism of all or part of said running time-frequency resource, sends to said end side transmission/receiving element;
Accordingly; Said end side transmission/receiving element; Be further used in said UpPTS time slot; Said UE uses all or part of said running time-frequency resource, and on the position of corresponding all or part of running time-frequency resource, said up CS pilot signal is sent to said base station side transmission/receiving element.
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| CN1523920A (en) * | 1998-05-13 | 2004-08-25 | ������������ʽ���� | Code division multiple access mobile communication system |
| CN1921466A (en) * | 2006-09-08 | 2007-02-28 | 清华大学 | Channel estimation method for solving OFDM interception position hopping using rotating technology |
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| CN1523920A (en) * | 1998-05-13 | 2004-08-25 | ������������ʽ���� | Code division multiple access mobile communication system |
| CN1921466A (en) * | 2006-09-08 | 2007-02-28 | 清华大学 | Channel estimation method for solving OFDM interception position hopping using rotating technology |
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