CN101247166A - Device and method for transmitting scheduling request information - Google Patents

Device and method for transmitting scheduling request information Download PDF

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Publication number
CN101247166A
CN101247166A CNA2007100793003A CN200710079300A CN101247166A CN 101247166 A CN101247166 A CN 101247166A CN A2007100793003 A CNA2007100793003 A CN A2007100793003A CN 200710079300 A CN200710079300 A CN 200710079300A CN 101247166 A CN101247166 A CN 101247166A
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sri
information
subscriber equipment
ack
nack
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李迎阳
张玉建
李小强
李周镐
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Beijing Samsung Telecommunications Technology Research Co Ltd
Samsung Electronics Co Ltd
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Beijing Samsung Telecommunications Technology Research Co Ltd
Samsung Electronics Co Ltd
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Priority to CNA2007100793003A priority Critical patent/CN101247166A/en
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Abstract

The present invention provides device and method of ascending control signaling about transmitting scheduling request, indicating information etc. The present invention also provides user equipment complexing SRI information and method of CQI information, user equipment can use all ascending power for transmitting CQI information when SRI information is not need to transmit, thereby transmission performance of CQI information is improved. User equipment processes broad sense ACK channel method which can increase opportunity of user equipment transmitting SRI information, thereby transmit time delay of ascending scheduling requested can be reduced, at the same time signaling spending of allotting SRI channel can be reduced. CAZAC sequence method of configuring ascending control channel can average interference from adjacent district, so transmission performance of ascending control signaling is improved.

Description

The equipment of transmitting and scheduling solicited message and method
Technical field
The present invention relates to wireless communication system, relate in particular a kind of in wireless communication system the equipment and the method for transmitting and scheduling solicited message.
Background technology
Now, 3GPP standardization body has set about beginning its existing system standard is carried out long-term evolution (LTE).In the middle of numerous physical layer transmission technology, be the focus of research based on the downlink transfer technology of OFDM (OFDM) with based on the uplink technology that single-carrier frequency division multiple access inserts (SCFDMA).Be a kind of multi-carrier modulation communication technology on the OFDM technological essence, its basic principle is the data flow of a two-forty to be decomposed into several rate data streams transmit simultaneously on one group of mutually orthogonal subcarrier.The OFDM technology is because its multicarrier character has performance advantage aspect a lot.It on the SCFDMA technological essence a kind of single carrier transmission technology, its signal peak-to-average is lower than (PAPR), thereby the power amplifier of portable terminal can be with higher efficient work, enlarge the coverage of sub-district, by adding Cyclic Prefix (CP) and frequency domain equalization, it is lower that it handles complexity simultaneously.
According to existing discussion result about LTE, Fig. 1 is a LTE system uplink frame structure, and the time span of its radio frames (101,102,103) is all 10ms mutually with WCDMA; Each frame is subdivided into a plurality of time slots (104-107), and present hypothesis is that each radio frames comprises 20 time slots, and time slots length is 0.5ms; Each time slot comprises seven SCFDMA symbols (108~114) again.According to present discussion result, Transmission Time Interval (TTI) is 1ms, promptly equals two time slots length.
Fig. 2 is the signal processing of SCFDMA, transmitting terminal obtains its modulation symbol that need send (201) through certain processing, transform to frequency domain through DFT module (202), be mapped to the sub-carrier positions of system assignment then through subcarrier mapping block (203), next return time domain through IFFT module (204) conversion, then add CP (205), carry out follow-up operation then.Attention is in order to distinguish with the DFT operation of IFFT operation (204) and execution when receiving, and the DFT operation of module (201) is called the Pre-DFT operation.
Discussion result according to current LTE, the physics running time-frequency resource is divided into a plurality of Resource Block (RB), and each Resource Block comprises M continuous sub-carriers on frequency domain, comprises N continuous symbol simultaneously in time, to descending be the OFDM symbol, to up be the SCFDMA symbol.According to the discussion result of current LTE, the value of M is 12, and the value of N depends on the OFDM symbol in the time slot or the number of SCFDMA symbol.
According to current LTE uplink control signaling is discussed the result, the upstream control signaling here comprises up affirmation/deny information (ACK/NACK), channel quality indication information such as (CQI).When not having transmitting uplink data, upstream control signaling sends on the frequency field of reserving, and as shown in Figure 3, the frequency field of these reservations is distributed in the two ends of frequency band.And in order to utilize the effect of frequency diversity, the upstream control signaling of a subscriber equipment (UE) is a time slot transmission at band occupancy two ends respectively in a TTI, promptly or utilize first time slot (301) of frequency band upper end and second time slot (302) of frequency band lower end, perhaps utilize first time slot (303) of frequency band lower end and second time slot (304) on the frequency band.When having transmitting uplink data, upstream control signaling transmits in the uplink data channels resource of base station assigns, and adopts the mode of TDM multiplexing, like this, the upstream data of control information and subscriber equipment was multiplexed into together before Pre-DFT, thereby had kept single-carrier property.
According to the discussion result of current LTE, when not having transmitting uplink data, as shown in Figure 4, ascending control information is in the frequency field transmission of reserving, and current discussion concentrates on the mode that two kinds of multiple access insert, i.e. FDM or CDM.Wherein the FDM access way is the different sub-carrier resources of ascending control information distribution to different user devices; And but the CDM access way is meant one group of identical subcarrier of a plurality of user equipment allocation distributes different code words, thereby distinguishes a plurality of subscriber equipmenies in the sign indicating number territory.In the discussion of current LTE, be a kind of main alternative sequence of CDM mode according to the sequence of persevering envelope zero auto-correlation (CAZAC) character.Obtain one group of new sequence by same CAZAC sequence is carried out different cyclic shifts, this group sequence has good their cross correlation, thereby different user equipment allocation uses this to organize different sequences in the new sequence.The number of available here cyclic shift value is subject to the maximum multipath time delay of wireless channel.In the discussion of current LTE, when a plurality of Resource Block of system assignment were used for upstream control signaling, a kind of mixed multiplex mode was to be the FDM multiplex mode between the different Resource Block, is the multiplex mode of CDM in same Resource Block inside.
According among the current LTE about the discussion result of dispatch request (SR), when the base station scheduling subscriber equipment carried out transmitting uplink data, SR information was transmitted by uplink data channels.When the base station is not the dispatching user facility transmitting uplink data, be the process that the current subscriber equipment that is in the uplink synchronous state sends the uplink scheduling solicited message as shown in Figure 4.As shown in Figure 4, at first subscriber equipment sends dispatch request indication (SRI) information (401); After the SRI information of subscriber equipment is received in the base station,, this subscriber equipment distributes control signaling (402) for sending ascending resource, thus the less resource of distribution ratio, for example a Resource Block; After subscriber equipment is received the ascending resource assignment signalling, on the resource of base station assigns, send actual dispatch request information, can also send a part of user data (403) simultaneously.
SRI information is a kind of unpredictable ascending control information, and the frequency that SRI takes place is very low, so when the channel of system design special use sends SRI, SRI generally transmits and adopts on-off keying (OOK), like this, when needing to send SRI, subscriber equipment sends this information with certain power, and promptly transmitted power is greater than 0; When not needing to send SRI, subscriber equipment does not send any signal, and promptly transmitted power is 0.
In the discussion of current LTE, proposed to transmit SRI information by multiplexing up CQI channel.First method is to reserve a CQI code word to be used for representing SRI information, adopts this method, and when subscriber equipment sent SRI information, the CQI report had been interrupted once, so might produce certain influence to base station dispatcher.Second method is the bit of SRI information bit and CQI to be done combined coding send in the CQI channel then, it is a bit in the available bits of CQI channel bearing to be fixed remain for SRI in advance that this method also can be understood as, so reduced the performance of CQI report to a certain extent; And in the reality link performance of SRI and CQI to require generally be different, but adopt the method for this combined coding, the link performance that reaches of SRI and CQI is the same, that is to say to transmit SRI and CQI information according to SRI and CQI performance requirement separately.
In the discussion of current LTE, the technology of lasting scheduling (Persistent Scheduling) has been proposed, this is in order to transmit some business that periodic packet bit number is fixed and bit number is fewer, for example VoIP business, interactive game and other real time business etc. effectively.To these business, system adopts semi-static ground of the method Resources allocation of Persistent Scheduling, when subscriber equipment actual needs transmission data, just takies this pre-assigned resource; When subscriber equipment when some does not constantly need to transmit data, for example (silent period) between the quiet period of VoIP business, in order to improve resource utilization, the resource of allocating in advance to subscriber equipment can adopt the method for dynamic dispatching to distribute to other subscriber equipmenies.Like this, adopt the method for Persistent Scheduling to distribute to the subscriber equipment ascending resource, indicate it currently whether to need to take this ascending resource thereby subscriber equipment need transmit certain control information in order to realize base stations control.
In the discussion of current LTE, the method whether multiple indication subscriber equipment needs to take its ascending resource has been proposed.First method is based on the method for assignment request (assign request), be that subscriber equipment is before needs send data, it need take resource informing base station, like this when assignment request from subscriber equipment is received in the base station, goes thereon and receives data on the resource; When assignment request from subscriber equipment was not received in the base station, the base station can be distributed to other subscriber equipmenies to the resource dynamic of this subscriber equipment.Second method is based on the method for the request of discharging (release request), be that subscriber equipment is not when needing to send data, it discharges resource informing base station, when release request from subscriber equipment is not received in the base station, receives data on the capable resource thereon like this; When release request from subscriber equipment was received in the base station, the base station can be distributed to other subscriber equipmenies to the resource dynamic of this subscriber equipment.The third method is based on the method for state exchange, promptly when subscriber equipment has upstream data, this subscriber equipment sends the assignment request, it need take resource informing base station, subscriber equipment continues to take this resource then, after subscriber equipment did not have upstream data, subscriber equipment sent the request of release, and it discharges resource informing base station; The base station can be given other subscriber equipmenies the ascending resource dynamic assignment of this subscriber equipment after receiving the request of release, receive the assignment request from subscriber equipment up to the base station.With in the discussion of current LTE, the method whether the indication subscriber equipment needs to take its ascending resource does not also have final decision to get off.
Between the transmission period of persistent schduling business, the size of its packet changes, with the VoIP business is example, during conversing between (talkspurt) and quiet period (silent period), the mean size of packet is different, and the time interval that packet sends also be different, be that every 20ms has a new packet during conversing, and be that every 160ms has a new packet between quiet period.In addition, the output speed of adaptive multi-rate (AMR) encoder also can change.In these cases, the base station might need to change the resource of the persistent schduling that distributes to subscriber equipment.The variation of these states can be indicated by specific method or control signaling, thereby is optimized for the resource of subscriber equipment persistent schduling.
Summary of the invention
The purpose of this invention is to provide a kind of in wireless communication system the equipment and the method for ascending control information such as transmitting and scheduling request indication information.
According to an aspect of of the present present invention, the method for multiplexing SRI information of a kind of subscriber equipment and CQI information comprises the steps:
A) subscriber equipment is the resource separated into two parts of 2N unit of N modulation symbol that is used to transmit SRI and CQI of system assignment, wherein the resource of K unit is used to transmit SRI, the resource of a Sheng Xia N-K unit is used to transmit CQI simultaneously, and K the modulation symbol of the SRI of note transmission here is s 1, s 2..., s K
B) when subscriber equipment sends SRI, modulation symbol s 1, s 2..., s KThe branch road emission SRI information that is used for SRI; When subscriber equipment does not send SRI, modulation symbol s 1, s 2..., s KThe power of the branch road that is used for SRI be 0, s simultaneously 1, s 2..., s KThe transmitting power of branch road of transmission CQI information greater than other N-K modulation symbol s K+1, s K+2..., s NThe transmitting power of each branch road.
C) N the modulation symbol of user device transmissions is multiplexing CQI and SRI.
According to another aspect of the present invention, a kind of base station receives the method for CQI information and SRI information, comprises the steps:
A) base station receives the upward signal that comprises CQI and SRI from subscriber equipment, and according to reference signal wherein CQI and SRI signal is carried out coherent detection, thereby obtains comprising N the modulation symbol of CQI and SRI.
B) the CQI signal is directly extracted in the base station on the resource of 2N-K the unit that transmits CQI, and it is decoded, thereby obtains the CQI information that subscriber equipment sends.
C) the SRI signal is detected in the base station.
According to another aspect of the present invention, the equipment of multiplexing CQI information of a kind of subscriber equipment and SRI information comprises emitter, also comprises:
A) CQI information encoder is used for CQI information is encoded;
B) SRI information encoder is used for SRI information is encoded;
C) CQI and SRI multiplexer are used for CQI information and SRI information multiplexing are arrived together.
D) physical channel multiplexer is used for the multiplexed signals of CQI and SRI is multiplexed into other physical channels.
According to another aspect of the present invention, a kind of base station receives the equipment of CQI information and SRI information, comprises receiving system, also comprises:
A) CQI information decoding device is used for CQI information is decoded;
B) SRI information decoding device is used for SRI information is decoded;
C) CQI and SRI demodulation multiplexer are used for going out CQI information and SRI information from the multiplexed signals demultiplexing of CQI and SRI;
D) physical channel demodulation multiplexer is used for multiplexed signals and other physical channels that demultiplexing goes out CQI and SRI.
Adopt this method of the present invention, when not needing to send SRI information, subscriber equipment can be used to transmit CQI information to whole ascending powers, thereby improves CQI transmission of Information performance.
According to another aspect of the present invention, a kind of subscriber equipment is handled the method for broad sense ACK/NACK channel, comprises the steps:
A) base station assigns is used for the up ACK/NACK channel of broad sense of Persistent Scheduling business, and note broad sense ACK/NACK channel comprises N modulation symbol;
B) according to current user equipment whether downlink data transmission and transmitting uplink data are arranged, subscriber equipment is finished multiple different function with the up ACK/NACK channel of broad sense.
According to another aspect of the present invention, a kind of base station receives the method for broad sense ACK/NACK channel, comprises the steps:
A) base station receives the upward signal from the broad sense ACK/NACK channel of subscriber equipment, and carries out coherent detection according to reference signal wherein, thereby obtains comprising N modulation symbol of ascending control information;
B) according to current user equipment whether downlink data transmission and transmitting uplink data are arranged, the ascending control information that possible subscriber equipment sends is detected in the base station.
According to another aspect of the present invention, the equipment of multiplexing ACK/NACK information of a kind of subscriber equipment and SRI information comprises emitter, also comprises:
A) ACK/NACK information encoder is used for ACK/NACK information is encoded;
B) SRI information encoder is used for SRI information is encoded;
C) ACK/NACK and SRI multiplexer are used for ACK/NACK information and SRI information multiplexing are arrived together.
D) physical channel multiplexer is used for the multiplexed signals of ACK/NACK and SRI is multiplexed into other physical channels.
According to another aspect of the present invention, a kind of base station receives the equipment of ACK/NACK information and SRI information, comprises receiving system, also comprises:
A) ACK/NACK information decoding device is used for ACK/NACK information is decoded;
B) SRI information decoding device is used for SRI information is decoded;
C) ACK/NACK and SRI demodulation multiplexer are used for going out ACK/NACK information and SRI information from the multiplexed signals demultiplexing of ACK/NACK and SRI;
D) physical channel demodulation multiplexer is used for multiplexed signals and other physical channels that demultiplexing goes out ACK/NACK and SRI.
Adopt this method of the present invention, can increase the chance of user device transmissions SRI information, thereby reduce the propagation delay time of uplink scheduling request, can reduce the signaling consumption that distributes the SRI channel simultaneously.
According to another aspect of the present invention, a kind of method of CAZAC sequence of collocating uplink control channel comprises the steps:
A) the cycle changing pattern of the multiple CAZAC sequence of system configuration;
B) changing pattern of different CAZAC sequences is adopted in the sub-district faced mutually of system configuration.
According to another aspect of the present invention, a kind of subscriber equipment sends uplink control signaling equipment, comprises emitter, also comprises:
A) CAZAC sequence sequence number controller is used for generating according to CAZAC sequence variation pattern the sequence number of the CAZAC sequence of each specific time slot or SCFDMA symbol;
B) CAZAC sequence generator is used for generating corresponding CAZAC sequence according to sequence number;
C) upstream control signaling maker is used to generate upstream control signaling;
D) physical channel multiplexer is used for upstream control signaling is multiplexed into other physical channels.
According to another aspect of the present invention, a kind of base station receives uplink control signaling equipment, comprises receiving system, also comprises:
A) CAZAC sequence sequence number controller is used for generating according to CAZAC sequence variation pattern the sequence number of the CAZAC sequence of each specific time slot or SCFDMA symbol;
B) CAZAC sequence generator is used for generating corresponding CAZAC sequence according to sequence number;
C) upstream control signaling resolver is used to detect the upstream control signaling that subscriber equipment sends;
D) physical channel demodulation multiplexer is used for demultiplexing upstream control signaling and other physical channels.
Adopt this method of the present invention, can make, thereby improve the uplink control signaling transmission performance from the interference equalization of facing the sub-district mutually.
Description of drawings
Fig. 1 is a LTE system uplink frame structure;
Fig. 2 is a SCFDMA Signal Processing process;
Fig. 3 is the structure of ascending control channel;
Fig. 4 is the process of transmitting and scheduling solicited message;
Fig. 5 is a N modulation symbol when sending SRI;
Fig. 6 is a N modulation symbol when not sending SRI;
Fig. 7 is the equipment of multiplexing CQI of subscriber equipment and SRI;
Fig. 8 is the equipment of base station CQI and SRI;
Fig. 9 is the equipment of multiplexing ACK/NACK of subscriber equipment and SRI;
Figure 10 is the equipment that the base station receives ACK/NACK and SRI;
Figure 11 is that subscriber equipment sends uplink control signaling equipment;
Figure 12 is that the base station receives uplink control signaling equipment;
Figure 13 is the schematic diagram of multiplexing CQI and SRI;
Figure 14 is the schematic diagram of multiplexing ACK/NACK and SRI;
Figure 15 is the schematic diagram one that subscriber equipment sends SRI;
Figure 16 is the schematic diagram two that subscriber equipment sends SRI;
Figure 17 is the schematic diagram of the different CAZAC sequence variation pattern of configuration;
Figure 18 is the schematic diagram three that subscriber equipment sends SRI;
Figure 19 is the schematic diagram four that subscriber equipment sends SRI.
Embodiment
The equipment and the method that the purpose of this invention is to provide ascending control information such as transmitting and scheduling request indication information in wireless communication system.In the description below the present invention, modulation symbol is defined as follows: when system does not adopt the CDM multi-address method,, define each modulation symbol corresponding to a subcarrier to the OFDM transmission technology; To the SCFDMA transmission technology, define each modulation symbol corresponding to a symbol before the Pre-DFT operation.When having adopted the CDM multi-address method in the system, each modulation symbol is meant with a symbol before the orthogonal code expansion.For example, according among the present LTE uplink control signaling being discussed the result, on same physical resource, the control signaling of a plurality of subscriber equipmenies adopts the multi-access mode of CDM multiplexing, specifically, on each SCFDMA symbol, each user distributes the value of using a basic CAZAC sequence and a specific cyclic shift, and only transmit a modulation symbol, be input to the Pre-DFT module after the CAZAC sequence of this modulation symbol and its particular cyclic shift multiplies each other and handle.
The present invention propose a kind of SRI information and CQI information multiplexing to the method for transmission together.Here to be used in the number of modulation symbol in the physical resource of transmission SRI information and CQI information be N to the supposing the system branch, is designated as s 1, s 2..., s N, each modulation symbol all adopts the mode of similar quadrature amplitude modulation (QAM), QPSK modulation system for example, and promptly each modulation symbol all has I and two branch roads of Q.The branch road (I or Q) that the present invention defines a modulation symbol is minimum resource units, comprises the resource of 2N unit in total like this physical resource.The present invention proposes the resource separated into two parts of this 2N unit, and is respectively applied for transmission SRI and CQI.Suppose to have the resource of K unit to be used to transmit SRI, the resource of a Sheng Xia 2N-K unit is used to transmit CQI simultaneously.Because CQI generally is many bit informations, K is smaller or equal to N here.The present invention proposes to distribute the resource of K the unit that transmits SRI to belong to different modulation symbols respectively, is without loss of generality, and supposes that K the modulation symbol of transmission SRI is s 1, s 2..., s KLike this as K during less than N, in the total resources of system assignment, modulation symbol s 1, s 2..., s KBranch road transmission SRI information, transmission CQI information in another branch road simultaneously; Other N-K modulation symbol s K+1, s K+2..., s NI and two branch roads of Q be used to transmit CQI information simultaneously.According to the structure of the ascending control channel of as shown in Figure 3 LTE system, two time slots that are used for CQI and SRI when system assignment are distributed to different frequencies, are used to transmit the modulation symbol s of SRI 1, s 2..., s KAlso correspondingly be distributed on the different frequencies, and guarantee that the number of the modulation symbol on each frequency is equal or equal substantially, thereby guarantee the frequency diversity performance of SRI transmission.
The present invention propose subscriber equipment SRI information and CQI information multiplexing to a time-out, adopt the modulation technique of similar OOK to send SRI information.Specifically, when subscriber equipment sends SRI, modulation symbol s 1, s 2..., s KThe branch road emission SRI information that is used for SRI, promptly these transmitting powers of branch road that are used for SRI are greater than 0, a kind of method is configuration s 1, s 2..., s KThe I and the transmitting power of two branch roads of Q equate; Another kind method is the transmitting power that each branch road is set according to the performance requirement of CQI and SRI, and at this moment, the transmitting power that is used for the branch road of CQI can be unequal with the transmitting power that is used for the branch road of SRI.When subscriber equipment does not send SRI, modulation symbol s 1, s 2..., s KThe power of the branch road that is used for SRI be 0, these power of saving are used to improve s simultaneously 1, s 2..., s KThe transmitting power of branch road of transmission CQI information, thereby s 1, s 2..., s KThe transmitting power of branch road of transmission CQI information greater than other N-K modulation symbol s K+1, s K+2..., s NThe transmitting power of each branch road.For example,, should make subscriber equipment in a TTI, launch CQI information and SRI information with constant transmitting power in order to guarantee the coverage property of subscriber equipment to ascending control channel in the LTE system as far as possible, at this moment, as shown in Figure 5, when subscriber equipment sends SRI, modulation symbol s 1, s 2..., s KThe I and the transmitting power of two branch roads of Q equate, and equal the transmitting power of each branch road of other N-K modulation symbol; As shown in Figure 6, when subscriber equipment does not send SRI, modulation symbol s 1, s 2..., s KThe power of the branch road that is used for SRI be 0, be used for the power emission of the branch road of CQI simultaneously with twice, the transmitting power of promptly supposing each branch road of other N-K modulation symbol is P, then modulation symbol s 1, s 2..., s KThe power of the branch road that is used for CQI be 2P, this helps improving the performance of CQI message transmission; Like this, whether reality has sent SRI information regardless of subscriber equipment, and the transmitting power of all N modulation symbol equates.Attention: in Fig. 5 and Fig. 6, in order to draw conveniently modulation symbol s 1, s 2..., s KThe I branch road be used for CQI, and the Q branch road is used for SRI, in fact the present invention does not limit modulation symbol s 1, s 2..., s KI branch road and Q branch road how to distribute.
According to method above-mentioned, whether reality has sent SRI information regardless of subscriber equipment, modulation symbol s K+1, s K+2..., s NThe transmitting power P of each branch road (I and Q) unaffected substantially; And whether send SRI information according to subscriber equipment, modulation symbol s 1, s 2..., s KThe transmitting power of the branch road that is used for CQI can be P, also can be 2P, so system can utilize this character to improve the performance of CQI.First method is that system utilizes s 1, s 2..., s KThe K that is used for a CQI branch road transmit the bit of the high priority of CQI information, and in user device transmissions during SRI information, the transmission performance that guarantees the high prioritized bit of CQI information meets the demands, at this moment, the performance that system can dispose high prioritized bit as required is equivalent to the performance of low priority bit, the performance that perhaps still is higher than the low priority bit, in addition, the present invention does not get rid of the performance possibility lower than the performance of low priority bit of high prioritized bit; When subscriber equipment did not transmit SRI, the performance of high preferential bit was further guaranteed, thereby the CQI transmission performances is improved like this.Second method is that system utilizes s 1, s 2..., s KThe K that is used for a CQI branch road transmit the bit of the low priority of CQI information, and when subscriber equipment does not transmit SRI, the performance that guarantees the bit of these low priorities reaches or a little more than its performance requirement; Like this, when user device transmissions during SRI, the performance of the CQI bit by reducing low priority guarantees the performance of the bit of high priority, thereby the CQI transmission performances is improved.
In the method for the invention, to CQI information and SRI information is to adopt the method work of coherent demodulation, that is to say, subscriber equipment while transmission of reference signals and actual control signal (CQI and SRI) in the time of a TTI, like this, the base station is detected CQI and SRI information according to reference signal.For SRI information, first kind of processing method is when not needing to send SRI, and subscriber equipment does not send any signal, and promptly transmitted power is 0; When needs sent SRI, subscriber equipment was at modulation symbol s 1, s 2..., s KThe branch road that is used for SRI send the SRI signal according to a predefined polarity (positive polarity or negative polarity).Use first kind of processing method, subscriber equipment transmits 1 bit information, promptly indicates whether to send SRI.Second kind of processing method is when not needing to send SRI, and subscriber equipment does not send any signal, and promptly transmitted power is 0; When needs sent SRI, subscriber equipment was at modulation symbol s 1, s 2..., s KThe branch road that is used for SRI send signal, and with the extra information of two kinds of possible polarity (positive polarity or negative polarity) transmission 1 bit.Adopt second kind of transmission, whether it has sent on the basis of SRI subscriber equipment in indication, can multiple send the information of 1 bit.Second kind of processing method as above, the promptly multiple method of sending a bit information is not limited to application in the present invention, when other are transmitted the SRI method, as long as whether the SRI transmission based on the processing method of coherent demodulation, just can indicate it to send on the basis of SRI, pilosity send the information of 1 bit.
In the method for the present invention, at modulation symbol s 1, s 2..., s KBe used to transmit on K the branch road of SRI transmission SR information the time, first method is after subscriber equipment repeats K time to SRI information, to be mapped on the resource of this K unit.Second method is a subscriber equipment SRI information and length is that the sequence S of K multiplies each other, and is mapped to then on the resource of K unit.To second method, the different user devices in the at this moment same sub-district can dispose mutually orthogonal sequence S; The identical sequence S of different user devices configuration in the perhaps same sub-district, but the mutually orthogonal sequence S of configuration between the different districts.According to the structure of the ascending control channel of as shown in Figure 3 LTE system, suppose to be used to transmit the modulation symbol s of SRI 1, s 2..., s KBe distributed to equably on two different frequencies, and the number of the modulation symbol on each frequency is respectively
Figure A20071007930000191
With Subscriber equipment can with length be SRI information respectively
Figure A20071007930000193
With
Figure A20071007930000194
Sequence multiply each other, be mapped to corresponding frequencies then respectively
Figure A20071007930000195
With On the individual modulation symbol.
In the present invention, the physical resource that SRI and CQI take is distinct, so SRI and CQI information can fully independently be detected in the base station.The base station receives the upward signal that comprises CQI and SRI from subscriber equipment, and according to reference signal wherein CQI and SRI signal is carried out coherent detection, thereby obtains comprising N the modulation symbol of CQI and SRI.The base station does not need to be concerned about whether subscriber equipment has sent SRI information when receiving CQI information, directly extract the CQI signal on the resource of 2N-K the unit that transmits CQI, and it is decoded, thereby obtains the CQI information that subscriber equipment sends.
The first method that the base station receives SRI information is the CQI information that the base station does not need to be concerned about the transmission of subscriber equipment, directly on the resource of K the unit that transmits SRI, extract the SRI signal, next, when subscriber equipment is carried out repeated encoding to SRI, the base station is the stack of the SRI signal on the resource of K unit, thus the SRI signal that the judgement subscriber equipment sends; Subscriber equipment is SRI information and length the sequence S of K when multiplying each other, and SRI signal and the stack on the resource of this K unit be multiply by in the base station with identical sequence S, thereby judges the SRI signal that subscriber equipment sends.
The second method that the base station receives SRI information is that at first the base station receives the CQI signal, then according to the CQI signal that demodulates, the upward signal of receiving subscriber equipment is carried out interference delete, thereby remove the influence of CQI signal, SRI information is continued to detect according to first kind of method that receives SRI in the base station then.
Send the multiplexing method of CQI and SRI according to subscriber equipment among the present invention, when user device transmissions during SRI information, modulation symbol s 1, s 2..., s KThe transmitting power of the K that is used for a CQI branch road and the transmitting power of each branch road of other N-K modulation symbol equal; When subscriber equipment does not transmit SRI information, modulation symbol s 1, s 2..., s KThe transmitting power of the K that is used for a CQI branch road be the twice of transmitting power of each branch road of other N-K modulation symbol, the base station can utilize this character to detect SRI information.
Send the multiplexing method of CQI and SRI according to subscriber equipment among the present invention, to K modulation symbol s of multiplexing CQI information and SRI information 1, s 2..., s K, when user device transmissions during SRI information, s 1, s 2..., s KThe transmitting power of K branch road that is used to transmit CQI information equate with the transmitting power of K the branch road that is used to transmit SRI information; When subscriber equipment does not transmit SRI information, because s 1, s 2..., s KThe transmitting power of K branch road that is used to transmit CQI information be the twice of transmitting power of each branch road of other N-K modulation symbol, and s 1, s 2..., s KThe transmitting power of K branch road that is used to transmit SRI information be 0, i.e. s 1, s 2..., s KThe transmitting power of K branch road that is used to transmit CQI information much larger than the transmitting power of K the branch road that is used to transmit SRI information, the base station can utilize this character to detect SRI information.
Be the equipment of multiplexing CQI information of subscriber equipment and SRI information as shown in Figure 7, wherein CQI information encoder (701), SRI information encoder (702), CQI and SRI multiplexer (703) are embodiments of the present invention.At first subscriber equipment is encoded to its CQI information in CQI information encoder (701), and simultaneously subscriber equipment is encoded to SRI information in SRI information encoder (702), and the coding here can be repeated encoding or SRI and a sequence multiplied each other.Subscriber equipment carries out CQI and SRI after encoding multiplexing in multiplexer (703) then.Next, CQI after multiplexing and SRI information and other physical channels are multiplexing through physical channel multiplexer (704), launch by emitter (705).
Be the equipment that the base station receives CQI information and SRI information as shown in Figure 8, wherein CQI and SRI demodulation multiplexer (803), CQI information decoding device (801), SRI information decoding device (802) are embodiments of the present invention.At first the base station receives through receiving system (805), demultiplexing goes out the composite signal of CQI and SRI in physical channel demodulation multiplexer (804), CQI and SRI demodulation multiplexer (803) demultiplexing go out the CQI signal then, and decoding obtains the CQI information that subscriber equipment sends in CQI decoder (801), next, the base station goes out the SRI signal from CQI and SRI demodulation multiplexer (803) demultiplexing, and decoding obtains the SRI information that subscriber equipment sends in SRI information decoding device (802).
In actual communication systems, there is such business, for example dispatch the business of (PersistentScheduling) lastingly, comprise VoIP business, interactive game and other real time business etc., the cycle of subscriber equipment report CQI information may be long, and the multiplexing CQI channel of at this moment simple dependence transmits SRI information and may bring long time delay.Simultaneously, the downlink data packet of PersistentScheduling business can not adopt MCW MIMO (Multiple Codewords generally speaking, Multiple-In Multiple-Out) technology is transmitted, and promptly carries out the each single uplink ACK/nack message of transmission that only needs of subscriber equipment of Persistent Scheduling business.Like this exist the professional downlink data transmission of Persistent Scheduling during, be to send SRI information thereby the chance of a kind of SRI of increasing transmission reduces the method for the time delay of SRI channel by multiplexing uplink ACK/NACK channel.This method can be mixed use with the method for multiplexing SRI and CQI.
It should be noted that: the SRI information is here made a general reference all control informations relevant with taking ascending resource.When semi-static ground of the method Resources allocation of Persistent Scheduling was only adopted to downlink resource in the base station, when promptly subscriber equipment did not have semi-static distribution ascending resource, SRI was meant ascending resource request indication information in general sense.When semi-static ground of the method Resources allocation of Persistent Scheduling was adopted to downlink resource and ascending resource simultaneously in the base station, SRI made a general reference the control information relevant with taking ascending resource, promptly is a kind of Generalized S RI information.The ascending resource of the subscriber equipment that the method that adopts PersistentScheduling is distributed semi-staticly, when subscriber equipment when some does not constantly need transmit ascending data, for example between the up quiet period of VoIP business (silentperiod), in order to improve the ascending resource utilance, these ascending resources can adopt the method for dynamic dispatching to distribute to other subscriber equipmenies.Like this, thus subscriber equipment need transmit certain ascending control information indicates its current ascending resource that whether needs to take this semi-static configuration.Here, SRI general reference is used to indicate subscriber equipment whether to need to take the ascending control information of the ascending resource of its Persistent Scheduling, specifically, SRI can be based on the assignment information requested, SRI also can be based on the release information requested, SRI can also be based on the information of state exchange, and perhaps SRI is other forms of ascending control information.
Because system is the uplink ACK/NACK channel of Persistent Scheduling traffic assignments generally is semi-static configuration, and like this, the present invention proposes the purposes of this uplink ACK/NACK channel is expanded, and it is called the up ACK/NACK channel of broad sense.The up ACK/NACK channel of this broad sense is through after the semi-static configuration, according to current user equipment whether downlink data transmission and transmitting uplink data are arranged, be used to finish multiple different function, these functions comprise transmission uplink ACK/nack message, SRI information and other ascending control informations etc.Other ascending control informations here can be the control informations that the professional uplink state of indication persistent scheduling changes, for example, the indication information of (silent period) conversion between (talkspurt) and quiet period during the conversation of indication VoIP business, or the indication information of the ascending resource number of variations of indication subscriber equipment needs etc.Notice that the present invention does not limit other uplink control signaling concrete functions here.When not having transmitting uplink data as downlink data transmission, the broad sense ACK/NACK channel of this semi-static configuration is transferring ACK/nack message and SRI information simultaneously.When existing downlink data transmission has transmitting uplink data again, the broad sense ACK/NACK channel of this semi-static configuration is used for transferring ACK/nack message, perhaps simultaneously transferring ACK/nack message and SRI information, perhaps transferring ACK/nack message and other ascending control information simultaneously.During subscriber equipment does not have this section of downlink data transmission, the broad sense ACK/NACK channel of this semi-static configuration can be reclaimed in the base station, thereby is used to transmit the ascending control information of other subscriber equipmenies; The base station can still be given this subscriber equipment the broad sense ACK/NACK channel allocation of this semi-static configuration, receives the SRI information of subscriber equipment up to the base station and begin transmitting uplink data that this channel can be reclaimed in the base station then; The base station also can still be given this subscriber equipment the broad sense ACK/NACK channel allocation of this semi-static configuration, passes through explicit this channel of release of control signaling up to the base station.Like this, according to the mode of base station assigns broad sense ACK/NACK channel, determine correspondingly whether following two kinds of situations can occur.When not having downlink data transmission also not have transmitting uplink data, the broad sense ACK/NACK channel of this semi-static configuration is exclusively used in transmission SRI information, perhaps transmits SRI information and other ascending control informations simultaneously.When not having downlink data transmission as transmitting uplink data, subscriber equipment can utilize this broad sense ACK/NACK Channel Transmission SRI information and/or some other ascending control information.Because the transmission to the user's equipment downward data in the base station working control, so the base station can be known the ascending control information that subscriber equipment may send on specific timing accurately, be that the base station knows when it should detect ACK/NACK information and SRI information and its needs detection SRI information when simultaneously.The system of it should be noted that can the multiplexing broad sense ACK/NACK channel of configure user equipment some or all of resource transmit ascending control informations such as SRI, promptly a kind of collocation method is can transmit ascending control informations such as SRI on the running time-frequency resource of all broad sense ACK/NACK channels of system configuration; Another kind of collocation method is that the running time-frequency resource that system configuration satisfies some broad sense ACK/NACK channels of specific timing relationship can transmit ascending control informations such as SRI.System can dispose ascending control information such as SRI and repeat to transmit on the up ACK/NACK channel of a plurality of broad sense, thereby the base station merges reception to the signal on these broad sense ACK/NACK channel, thereby improves its transmission performances.When the multiple ascending control information needs that comprise SRI and uplink ACK/nack message are multiplexed into the up ACK/NACK channel of broad sense together, these ascending control informations can adopt the multiplex mode of similar TDM, and promptly every kind of ascending control information is respectively according to the running time-frequency resource of the multiplexing broad sense ACK/NACK channel of different timing relationships.When not needing to send uplink ACK/nack message, SRI information can be monopolized the up ACK/NACK channel of broad sense, also can with the up ACK/NACK channel of the multiplexing together broad sense of other upstream control signalings.
According to current user equipment whether downlink data transmission and transmitting uplink data are arranged, when subscriber equipment only may send one type upstream control signaling, then this upstream control signaling took this broad sense ACK/NACK channel alone; When subscriber equipment may send two types upstream control signaling, then this upstream control signaling of two types was multiplexing at this broad sense ACK/NACK channel.The multiplexing method that subscriber equipment transmits uplink ACK/NACK and SRI information is simultaneously below described.Described method is used equally to multiplexing uplink ACK/nack message and other ascending control informations.The number that the supposing the system branch is used in modulation symbol in the physical resource of uplink ACK/NACK channel of Persistent Scheduling business is N, is designated as s 1, s 2..., s NAttention: when uplink ACK/nack message be with length be when being mapped to physical layer transmission after the orthogonal sequence F of N multiplies each other, the symbol before the modulation symbol here is defined as and multiplies each other with orthogonal sequence F promptly repeats N symbol obtaining for N time to uplink ACK/nack message.For example, to the ascending control channel in the LTE system, the number that note is used for the SCFDMA symbol of transferring ACK/nack message is N, system can configure user equipment be its ACK/NACK information and length after N orthogonal sequence F multiplies each other, value after successively each being multiplied each other is then transmitted in each SCFDMA symbol, and the length here is that the orthogonal sequence of N can be sequence in Walsh sequence, the fourier transform matrix or CAZAC sequence etc.According to top definition to modulation symbol, each modulation symbol all adopts the mode of similar quadrature amplitude modulation (QAM), QPSK modulation system for example, and promptly each modulation symbol all has I and two branch roads of Q.
The present invention proposes, when multiplexing SRI information and uplink ACK/nack message, uplink ACK/nack message takies a branch road (I or the Q) transmission of each modulation symbol in this N modulation symbol, and another branch road (Q or I) of each modulation symbol in this N modulation symbol is used to transmit SRI information simultaneously.It should be noted that when subscriber equipment only need send SRI a kind of method is that N identical branch road transmits SRI information when taking with multiplexing SRI and ACK/NACK; The new mode that another kind method design SRI sends on this N modulation symbol.
Similar with the method for above-mentioned multiplexing CQI and SRI, the present invention adopts the modulation technique of similar OOK to send SRI information.Specifically, when subscriber equipment sends SRI, the branch road emission SRI information that is used for SRI of this N modulation symbol, promptly these transmitting powers of branch road that are used for SRI are greater than 0, and a kind of method is to dispose s 1, s 2..., s KThe I and the transmitting power of two branch roads of Q equate; Another kind method is the transmitting power that each branch road is set according to the performance requirement of ACK/NACK and SRI, and at this moment, the transmitting power that is used for the branch road of ACK/NACK can be unequal with the transmitting power that is used for the branch road of SRI.When subscriber equipment did not send SRI, the power of the branch road that is used for SRI of this N modulation symbol was 0.Similar with the method for above-mentioned multiplexing CQI and SRI, the present invention is to adopt the method work of coherent demodulation to uplink ACK/nack message and SRI information, and to the SRI transmission, subscriber equipment can only transmit 1 bit information, promptly indicates whether to send SRI; Whether subscriber equipment also can indicate it to send on the basis of SRI, can multiple send the information of 1 bit.
When transmitting SRI information on the branch road that is used for SRI of this N modulation symbol, first method is to be mapped on this N modulation symbol after subscriber equipment repeats N time to SRI information.Because uplink ACK/nack message also is to be mapped on this N modulation symbol after repetition N time, so when this N modulation symbol and length are when being mapped to physical layer transmission after the orthogonal sequence F of N multiplies each other, at this moment be equivalent to SRI and ACK/NACK shared identical orthogonal sequence F.Second method is a subscriber equipment SRI information and length is that the sequence S of N multiplies each other, and is mapped to then on N the modulation symbol.When sequence S was not complete 1 sequence, this was the equal of that SRI has adopted different orthogonal sequences with ACK/NACK.Like this, when this N modulation symbol be with length be when being mapped to physical layer transmission after the orthogonal sequence F of N multiplies each other, ACK/NACK handles with orthogonal sequence F, SRI handles with the product sequence of sequence S and sequence F.Choose reasonable sequence S can guarantee product sequence and the sequence F quadrature of sequence S and sequence F.To second method, according to the structure of the ascending control channel of as shown in Figure 3 LTE system, this N modulation symbol is distributed on two different frequencies equably, and the number of the modulation symbol on each frequency is respectively
Figure A20071007930000241
With
Figure A20071007930000242
Subscriber equipment can with length be SRI information respectively With
Figure A20071007930000251
Sequence multiply each other, be mapped to corresponding frequencies then respectively
Figure A20071007930000252
With On the individual modulation symbol.
In the present invention, the physical resource that ACK/NACK and SRI take is distinct, so SRI and ACK/NACK information can fully independently be detected in the base station.The base station receives the upward signal that comprises ACK/NACK and SRI from subscriber equipment, and according to reference signal wherein ACK/NACK and SRI signal is carried out coherent detection, thereby obtains comprising N the modulation symbol of ACK/NACK and SRI.Attention: the definition of the modulation symbol here is different from the definition when subscriber equipment sends ACK/NACK and SRI, and it is N symbol after the orthogonal sequence F of N multiplies each other that the modulation symbol here is defined as ACK/NACK and SRI information and length.The base station is when receiving ACK/NACK information, do not need to be concerned about whether subscriber equipment has sent SRI information, when ACK/NACK and SRI information are directly transmitted on this N modulation symbol after repeating for N time, ack/nack signal and summation are directly extracted in the base station on the branch road that is used for ACK/NACK of this N modulation symbol, thereby obtain the ACK/NACK information that subscriber equipment sends; When ACK/NACK and SRI information is to be to be mapped to after the orthogonal sequence F of N multiplies each other when transmitting on this N modulation symbol with length, this N modulation symbol and summation be multiply by with the sequence of gripping altogether of orthogonal sequence F in the base station, thereby obtain the ACK/NACK information that subscriber equipment sends.
The first method that the base station receives SRI information is the ACK/NACK information that the base station does not need to be concerned about the transmission of subscriber equipment, when SRI and ACK/NACK information are directly transmitted on this N modulation symbol after repeating for N time, SRI signal and summation are directly extracted in the base station on the branch road that is used for SRI of this N modulation symbol, thereby obtain the SRI information that subscriber equipment sends; When SRI and ACK/NACK information is to be to be mapped to after the orthogonal sequence F of N multiplies each other when transmitting on this N modulation symbol with length, and this N modulation symbol and summation be multiply by with the sequence of gripping altogether of orthogonal sequence F in the base station, thereby obtain the SRI information that subscriber equipment sends.
The second method that the base station receives SRI information is that at first the base station receives ack/nack signal, then to according to the ACK/NACK information that demodulates, the upward signal of receiving subscriber equipment is carried out interference delete, thereby remove the influence of ack/nack signal, SRI information is continued to detect according to first kind of method that receives SRI in the base station then.
It should be noted that, above the multiplexing method of the uplink ACK/nack message of SRI information and subscriber equipment, as long as the downlink data transmission of this subscriber equipment is not used the technology of MCW MIMO, can be applied to Dynamic Resource Allocation for Multimedia is carried out in the base station to subscriber equipment situation equally.It should be noted that, the present invention proposes a branch road (I or the Q) transmission that ascending control information such as SRI and uplink ACK/nack message take N each modulation symbol in the modulation symbol respectively, and the transmission of information such as SRI and the method for reception have been proposed when information such as SRI are employing OOK modulation.Information must adopt the OOK modulation technique but the present invention does not limit SRI etc., also can adopt the bipolarity modulation, promptly represents two kinds of possible states of the information of SRI respectively with positive and negative two polarity.
Be the equipment of multiplexing ACK/NACK information of subscriber equipment and SRI information as shown in Figure 9, wherein ACK/NACK information encoder (901), SRI information encoder (902), ACK/NACK and SRI multiplexer (903) are embodiments of the present invention.At first subscriber equipment is encoded to its ACK/NACK information in ACK/NACK information encoder (901), and subscriber equipment is encoded to SRI information in SRI information encoder (902) simultaneously.Subscriber equipment carries out ACK/NACK and SRI after encoding multiplexing in multiplexer (903) then.Next, ACK/NACK after multiplexing and SRI information and other physical channels are multiplexing through physical channel multiplexer (904), launch by emitter (905).
Be the equipment that the base station receives ACK/NACK information and SRI information as shown in figure 10, wherein ACK/NACK and SRI demodulation multiplexer (1003), ACK/NACK information decoding device (1001), SRI information decoding device (1002) are embodiments of the present invention.At first the base station receives through receiving system (1005), demultiplexing goes out the composite signal of ACK/NACK and SRI in physical channel demodulation multiplexer (1004), ACK/NACK and SRI demodulation multiplexer (1003) demultiplexing go out ack/nack signal then, and decoding obtains the ACK/NACK information that subscriber equipment sends in ACK/NACK decoder (1001), next, the base station goes out the SRI signal from ACK/NACK and SRI demodulation multiplexer (1003) demultiplexing, and decoding obtains the SRI information that subscriber equipment sends in SRI information decoding device (1002).
The method that describes below can strengthen the performance that goes up control signaling (CQI, ACK/NACK, SRI etc.) by disturbing average interference from a plurality of sub-districts.
According to the discussion result among the current LTE, in same sub-district, preferential one group of sequence using the different cyclic shifts generations of same basic CAZAC sequence when subscriber equipment sends upstream control signaling.Because be subject to the propagation delay of wireless channel, the number of the value of the available cycles displacement of a basic CAZAC sequence is limited, so on the one hand in inside, same sub-district, according to the uplink control signaling load condition, system can dispose and use different base station CAZAC sequences; On the other hand, use different basic CAZAC sequences in the sub-district that system configuration is different.Yet the number of available basic CAZAC sequence is subject to its sequence length.The length of note CAZAC sequence is L, and then the number of basic CAZAC sequence depends between 1~L-1 the number with the relatively prime numeral of L.According to the resource distribution mode of as shown in Figure 3 ascending control channel, upstream control signaling transmits in the resource at the two ends of frequency band.According to the discussion result of current LTE, transmission uplink control signaling resource is one or more Resource Block, and promptly the length of CAZAC sequence is 12 or its multiple, also is 18 situation in the length of having begged for the CAZAC sequence among the current in addition LTE.With the length of CAZAC sequence is 12 to be example, in current discussion, produce length and be 12 CAZAC following several mode is arranged, first method is that directly to produce length be 12 CAZAC sequence, because have only 4 with the number of 12 relatively prime numerals between 1~11, the number of at this moment available basic CAZAC sequence is 4.Second method is that at first to produce length be 13 CAZAC sequence, because 13 are prime numbers, so such sequence has 12, to be 13 CAZAC sequence obtain length by brachymemma to length is 12 sequence then.The third method is that at first to produce length be 11 CAZAC sequence, because 11 are prime numbers, so such sequence has 10, to be 11 CAZAC sequence obtain length by cyclic extensions to length is 12 sequence then.
According to top discussion, the number of available basic CAZAC sequence is fewer in the LTE system, this has proposed very strict restriction to plot planning, because if two cell configuration identical CAZAC sequence, and these two sub-districts are at a distance of closer, and at this moment the signal of two sub-districts disturbs each other.The present invention proposes a sub-district in its CAZAC sequence that is disposed of different moment conversion, and repeat the CAZAC sequence that it disposes according to certain cycle, each CAZAC sequence of distributing is in chronological order called the changing pattern of a CAZAC sequence here in a period of change; According to the uplink control signaling load condition, can dispose the changing pattern of one or more CAZAC sequence in the same sub-district; Simultaneously, near the CAZAC sequence of the different changing patterns of other cell configuration sub-district, thereby the interference between the randomization sub-district.
Here the cycle of CAZAC sequence variation pattern can be one or more TTI, also can be a radio frames.Specifically, the method for first kind of definition CAZAC sequence variation pattern is that CAZAC sequence variation with time slot in one-period of disposing a sub-district changes.The method of second kind of definition CAZAC sequence variation pattern is that the CAZAC sequence of a sub-district of configuration changes with the variation of SCFDMA symbol in one-period.To first method, when period of change is a TTI, uplink frame structure according to LTE, comprise two time slots in each TTI, the number of remembering available CAZAC sequence is N, if two time slots in the one-period can not adopt identical CAZAC sequence, the changing pattern one total N (N-1) of then all possible CAZAC sequence plants; If two time slots in the permission one-period adopt identical CAZAC sequence, the changing pattern one total N of then all possible CAZAC sequence 2Kind.Promptly according to ascending control channel structure shown in Figure 3, upstream control signaling takies two slot transmission on the different frequency respectively in a TTI, and employed CAZAC sequence is to dispose according to certain changing pattern on these two time slots.To first method, when period of change is a radio frames,, comprise 20 time slots in each frame according to the uplink frame structure of LTE, system guarantees that length is that the changing pattern of 20 CAZAC sequence has the average effect of good interference.
In the method for the present invention, disposing a sub-district, to adopt the first method of one or more CAZAC sequence variation pattern be to send this configuration information by broadcast channel (BCH).Second method is the mapping relations of definition CAZAC sequence variation pattern and cell ID (Cell ID) or cell group identification (Cell Group ID) etc.Second method is the mapping relations of the orthogonal code of definition CAZAC sequence variation pattern and primary synchronization channel (P-SCH), auxiliary synchronization channel (S-SCH) and descending public reference signal etc.
Be that subscriber equipment sends uplink control signaling equipment as shown in figure 11, wherein CAZAC sequence sequence number controller (701) and CAZAC sequence generator (702) are embodiments of the present invention.Subscriber equipment receives and obtains according to other information the information of CAZAC sequence variation pattern from broadcast channel, subscriber equipment generates the sequence number of the CAZAC sequence of each specific time slot or SCFDMA symbol in CAZAC sequence sequence number controller (1101) then, then produce corresponding C AZAC sequence with this sequence number control CAZAC sequence generator (1102), thereby in upstream control signaling maker (1103), generate its control signaling, multiplexing through physical channel multiplexer (1104) then, and by emitter (1105) emission.
Be that the base station receives uplink control signaling equipment as shown in figure 12, wherein CAZAC sequence sequence number controller (1201) and CAZAC sequence generator (1202) are embodiments of the present invention.The base station goes out the upstream control signaling of subscriber equipment on the one hand through receiving system (1205) demultiplexing in physical channel demodulation multiplexer (1204).The base station is according to the CAZAC sequence variation pattern of its configuration on the other hand, in CAZAC sequence sequence number controller (1121), generate the sequence number of the CAZAC sequence of each specific time slot or SCFDMA symbol, produce corresponding C AZAC sequence with this sequence number control CAZAC sequence generator (1202) then.Thereby the base station is resolved in upstream control signaling resolver (1203) and is obtained its control signaling.
Embodiment
This part has provided three embodiment of this invention, and is too tediously long for fear of the description that makes this patent, in the following description, omitted the detailed description of function that the public is known or device etc.
First embodiment
Present embodiment is corresponding to the method for multiplexing CQI information and SRI information.According in the current LTE system to the definition of up-link wireless frame structure, each time slot comprises 7 SCFDMA symbols, and according to the structure of ascending control channel shown in Figure 3, upstream control signaling is distributed to transmission in two time slots on the different frequency.Here suppose to have in each time slot a SCFDMA symbol to be used for transmitting uplink reference signal, the present invention does not limit the number of the SCFDMA symbol that is used for reference signal in each time slot.
As shown in figure 13, because one have 14 SCFDMA symbols in a TTI, wherein 2 as uplink reference signals, and so also remaining 12 SCFDMA symbols are used for transmitting uplink control information.Because each SCFDMA symbol can transmit a modulation symbol, the number of available like this modulation symbol is N=12.Because each modulation symbol can be divided into I branch road and two branch roads of Q branch road, define a unit that branch road is resource allocation of a modulation symbol like this, have the resource of 24 units here.
As shown in figure 13, suppose that the resource of 4 units wherein is used to transmit SRI, the resource of 20 remaining units is used to transmit CQI.Here in order to realize sharing between SRI and the CQI transmitting power of modulation symbol, being used for resource distribution to 4 a different SCFDMA symbol of 4 units of SRI, is SCFDMA symbol #6~#9 in the drawings.Do not influence generality, suppose here in 4 multiplexing modulation symbols of SRI and CQI, SRI takies the transmission of Q branch road and CQI takies the transmission of I branch road.In order to guarantee that the SRI transmission has best frequency diversity effect, 4 modulation symbols that are used for SRI among Figure 13 are divided into two parts, and on the time slot of two different frequencies, transmit i.e. wherein two SCFDMA symbol #6 and the #7 transmission of modulation symbol in the time slot of frequency band upper end respectively; SCFDMA symbol #8 and the #9 transmission of two other modulation symbol in the time slot of frequency band lower end.
When subscriber equipment need send SRI information, in 4 multiplexing modulation symbols of SRI and CQI, the transmitting power of the transmitting power of I branch road and Q branch road equated, and power takes place equaled other 8 power that are exclusively used in the modulation symbol of CQI, i.e. C among Figure 13 1~C 20And R 1~R 4Square value equate.When subscriber equipment does not need to send SRI information, because SRI adopts the OOK modulation, in 4 multiplexing modulation symbols of SRI and CQI, the transmitting power of Q branch road is 0, the transmitting power of saving on these Q branch roads is used to improve the transmitting power of I branch road, like this, the transmitting power of the I branch road of 4 modulation symbols that SRI and CQI are multiplexing is the twice of transmitting power of each branch road of other 8 modulation symbols that are exclusively used in CQI, i.e. R among Figure 13 1~R 4Value be 0, and C 1~C 16Square value be C 17~C 20The twice of square value.
Second embodiment
Present embodiment is corresponding to information such as the uplink ACK/NACK Channel Transmission uplink ACK/NACK of multiplexing broad sense and SRI.Here supposing has a packets need transmission every 20ms, and that suppose the HARQ re-transmission is 5ms at interval, can allow 3 re-transmissions like this between twice initial data transfer at most.
Be that the base station sends the schematic diagram that downlink data and subscriber equipment send uplink ACK/NACK and SRI as shown in figure 14, suppose that here the base station transmitted two packets at down direction, and hypothesis is when sending first packet, transmission success after once retransmitting; And when sending second packet, it is just successful only to experience a data transfer.Correspondingly, to first packet, subscriber equipment need send ACK/NACK information twice, promptly sends for the first time NACK and sends ACK for the second time; To second packet, subscriber equipment only need send ACK one time.As shown in figure 14, at up direction, with the moment that downlink data transmission satisfies specific timing relationship, user data sends uplink ACK/nack message, and subscriber equipment only need send its ACK/NACK information 3 specific moment here.And for SRI information, because SRI is a kind of unpredictable information, promptly 8 timing positions in Figure 14 all might transmit SRI information.At 3 ad-hoc locations that send ACK/NACK information, ACK/NACK information and SRI information are to adopt the multiplexing method of describing as the present invention of IQ; And to other 5 positions, SRI exclusively enjoys the up ACK/NACK channel of this broad sense, in order to keep the unanimity of transmission method, at this moment transmits on the branch road that SRI information is still can be when it is multiplexing with ACK/NACK identical.
As shown in figure 15, suppose the base station after finishing downlink data transmission, but broad sense ACK/NACK channel is still distributed to this subscriber equipment.Do not limit in this example after up SRI from subscriber equipment, concrete SR information and upstream data are received in the base station, whether the ACK/NACK channel of this broad sense still distributes to this subscriber equipment.As shown in figure 15, after downlink data transmission is finished in the base station, no longer send data at down direction to this subscriber equipment, but the ACK/NACK channel of this broad sense does not reclaim, but still distribute to this subscriber equipment, in this case, subscriber equipment does not send the demand of ACK/NACK at up direction, so this broad sense ACK/NACK channel is actually the SRI information that sends that is exclusively used in.As shown in figure 15, the demand of transmitting uplink data is arranged when subscriber equipment after, subscriber equipment utilizes its broad sense ACK/NACK channel to send SRI information.Here SRI can only indicate it and need send SR and upstream data, also can be on the basis of this demand of indication the multiple information of sending a bit.Capable resource allocation control signaling is served in the base station for this user equipment allocation ascending resource is concurrent after receiving the SRI information of subscriber equipment.Subscriber equipment is being distributed to transmission SR message on its resource after receiving this control signaling, subscriber equipment can also send a part of upstream data simultaneously.
As shown in figure 16, suppose the base station in the process of its downlink data transmission, subscriber equipment produces the demand that sends SR information and upstream data.Here the method in order to draw supposes that the corresponding ascending resource assignment signalling in base station is created in the different timings with downlink data to this subscriber equipment, and in fact they also can send in the identical moment; Correspondingly, in Figure 16, the timing of broad sense ACK/NACK channel is different from SR and upstream data, and they also may send in the identical moment.As shown in figure 16, subscriber equipment had produced the demand that sends SR information and upstream data before the ACK/NACK information that sends second packet of base station, subscriber equipment is installed method of the present invention its ACK/NACK information and SRI information multiplexing road are sent in broad sense ACK/NACK channel together like this.Here SRI can only indicate and need send SR and upstream data, also can be on the basis of this demand just the multiple information of sending a bit.The base station is after the ACK/NACK information of receiving subscriber equipment and SRI information, and the base station continues to retransmit downlink data or send new downlink data on the one hand, and on the other hand, capable resource allocation control signaling is served in the base station for this user equipment allocation ascending resource is concurrent.Connect down subscriber equipment and receive the downlink data of base station and the ascending resource distribution control signaling of base stations detected transmission simultaneously, after subscriber equipment is received this ascending resource assignment signalling, subscriber equipment continues to send ACK/NACK information on the one hand on its broad sense ACK/NACK channel, subscriber equipment sends SR message on the resource of distributing to it on the specific timing on the other hand, and subscriber equipment can also send a part of upstream data simultaneously.
The 3rd embodiment
Present embodiment is corresponding to being provided with different CAZAC sequence variation patterns for the sub-district, thereby upstream control signaling is disturbed equalization.The uplink control signaling CAZAC sequence that is used for of supposing the system configuration here changes with the variation of time slot, and its period of change is a TTI, i.e. 2 time slots.
Figure 17 is the schematic diagram of the present invention's changing pattern of different CAZAC sequences for each sub-district is provided with.Because CAZAC sequence number available in the system is limited, so the CAZAC sequence has to be reused in not far sub-district.As shown in figure 17, with the example that is configured to of the CAZAC sequence variation pattern of three sub-districts, the CAZAC sequence variation pattern of these three sub-districts is respectively [1,2], [1,3] and [4,2] here.The CAZAC sequence that is adopted on first time slot of first sub-district and second sub-district is identical, so the upstream control signaling of these two sub-districts will disturb on first time slot each other.Adopt the present invention to propose to dispose the method for different CAZAC sequence variation patterns, the CAZAC sequence that these two sub-districts are adopted on second time slot is different, so the phase mutual interference of the upstream control signaling of these two sub-districts on second time slot is very little.Same, the CAZAC sequence that is adopted on first time slot of first sub-district and the 3rd sub-district is different, so the phase mutual interference of the upstream control signaling of these two sub-districts on first time slot is very little; Yet the CAZAC sequence that is adopted on second time slot of these two sub-districts is identical, so the upstream control signaling of these two sub-districts will disturb on second time slot each other.Like this because upstream control signaling transmits in a TTI, disturbed condition on comprehensive these two time slots, the interference of first sub-district is disturbed and has been obtained equalization, thereby improved the upstream control signaling transmission performances from a plurality of sub-districts rather than unique from some sub-districts.
The 4th embodiment
Present embodiment is corresponding to information such as the uplink ACK/NACK Channel Transmission uplink ACK/NACK of multiplexing broad sense and SRI.Here suppose that the base station carries out persistent scheduling simultaneously to the ascending resource and the downlink resource of subscriber equipment, and subscriber equipment indicates it whether to need to take the ascending resource of distribution at up direction by sending the request of release, and promptly the SRI representative discharges solicited message in the present embodiment.Supposing has a new packets need transmission every 20ms, and hypothesis HARQ retransmits is 5ms at interval, can allow at most like this to retransmit for 3 times between twice initial data transfer, and promptly broad sense ACK/NACK channel has distributed resource 4 times in 20ms.Because every 20ms a new logarithmic data bag is arranged, need send once so discharge the every 20ms of solicited message SRI at up direction.A channel in 4 broad sense ACK/NACK channels of subscriber equipment in can multiplexing 20ms transmits SRI; Perhaps K (1<K<4) channel in 4 broad sense ACK/NACK channels of subscriber equipment in can multiplexing 20ms repeats to transmit SRI, and the base station merges reception to this K SRI, thereby improves the reliability that SRI transmits.A channel in 4 broad sense ACK/NACK channels in the present embodiment in the multiplexing 20ms of hypothesis subscriber equipment transmits SRI, when not needing to transmit uplink ACK/nack message, the present invention does not limit the base station and whether gives other subscriber equipmenies the resource allocation of other 3 channels in 4 broad sense ACK/NACK channels in the 20ms simultaneously.In this enforcement, restricting user equipment does not send the modulation system that SRI adopted, if the system configuration subscriber equipment adopts OOK to modulate the SRI information that sends, then discharge the ascending resource of the transmitted power of request SRI greater than its release distribution of 0 expression, the transmitted power of SRI equals 0 expression, and it does not discharge the ascending resource of distribution.If the system configuration subscriber equipment adopts bipolarity to modulate the SRI information that sends, a polarity that then discharges request SRI represents that it discharges the ascending resource that distributes, and another polarity that discharges request SRI represents that it does not discharge the ascending resource of distribution.Here the method in order to draw supposes that the delivery time of broad sense ACK/NACK channel and uplink data channels is different, and in fact they also can engrave transmission when identical.Here come the operation of transferring ACK/nack message and SRI information for the outstanding multiplexing broad sense ACK/NACK channel of subscriber equipment, when subscriber equipment sent upstream data, present embodiment was not expressed the HARQ operation to upstream data.
As shown in figure 18, suppose that here subscriber equipment does not have upstream data during the base station transmits downlink data, but certain time after downlink data transmission is finished in the base station, and subscriber equipment begins to have upstream data to need transmission.Here suppose the base station after finishing downlink data transmission, the up ACK/NACK channel of broad sense is still distributed to this subscriber equipment, and is used to transmit SRI information.In Figure 18, the base station is user equipment allocation downlink resource (1814~1817) based on persistent scheduling, downlink resource (1814 and 1815) is actually used in the transmission downlink data packet, and whether the present invention does not limit the base station can give other subscriber equipmenies other downlink resources (1816 and 1817) dynamic assignment.In Figure 18, the base station is user equipment allocation ascending resource (1811~1813) based on persistent scheduling, and wherein ascending resource (1812 and 1813) is actually used in transmit ascending data, and ascending resource (1811) is not used for transmit ascending data.In Figure 18, multiplexing ACK/NACK information of broad sense ACK/NACK channel (1801) and SRI information; Broad sense ACK/NACK channel (1802) only is used for transferring ACK/nack message; Broad sense ACK/NACK channel (1805 and 1809) is exclusively used in the SRI information that sends.Whether the present invention does not limit the base station can distribute to other subscriber equipmenies to the resource dynamic of other broad sense ACK/NACK channel (1803,1804,1806~1808 and 1810).
As shown in figure 18, the base station sends downlink data packet (1814), and subscriber equipment receives this downlink data packet (1814).Then, subscriber equipment will send uplink ACK/nack message (being NACK) here on the one hand, on the other hand because subscriber equipment does not send the demand of upstream data, indicate it to discharge uplink data channels resource (1811) so subscriber equipment sends SRI information, subscriber equipment is gone up transmission to ACK/NACK information and SRI information multiplexing at broad sense ACK/NACK channel (1801) according to method of the present invention here.The ACK/NACK information and the SRI information of subscriber equipment is detected in the base station, and on the one hand, thereby NACK re-transmission downlink data packet (1815) is received in the base station; On the other hand, SRI information is received in the base station, knows that subscriber equipment does not need to send upstream data, so the base station can be given other subscriber equipmenies uplink data channels resource (1811) dynamic assignment of this subscriber equipment.After subscriber equipment is received the packet (1815) of base station, send ACK/NACK information (being ACK) here at broad sense ACK/NACK channel (1802), note because have one to be used to transmit SRI in per 4 the broad sense ACK/NACK channels of hypothesis the ACK/NACK information discord SRI information multiplexing here.Then, discharge request SRI because subscriber equipment has sent, subscriber equipment is the data of the last transmission of line data channel resource (1811) thereon not.The base station receives broad sense ACK/NACK channel (1802), detects subscriber equipment and has sent ACK, so the downlink data packet that continues to retransmit to this subscriber equipment is not gone up at downlink resource (1816 and 1817) in the base station.
As shown in figure 18, certain time after downlink data transmission is finished in the base station, subscriber equipment begins to have upstream data to need to send, and at this moment broad sense ACK/NACK channel is exclusively used in the SRI information that sends.Because subscriber equipment needs transmit ascending data,, subscriber equipment indicate it not discharge upstream data resource (1812) so going up transmission SRI information at corresponding broad sense ACK/NACK channel (1805).The SRI information of subscriber equipment is received in the base station on broad sense ACK/NACK channel (1805), thereby knows that subscriber equipment need send upstream data, so the base station can not given other subscriber equipmenies the ascending resource of this subscriber equipment (1812) dynamic assignment.Then, the capable thereon resource (1812) of subscriber equipment goes up and sends its upstream data, and the base station is gone up at ascending resource (1812) and received upstream data.Next, with top class of operation seemingly, subscriber equipment is gone up the SRI information that sends at broad sense ACK/NACK channel (1809), indicate the current upstream data that needs to send, the base station can not given other subscriber equipmenies the ascending resource of this subscriber equipment (1813) dynamic assignment after receiving the SRI information of subscriber equipment on the broad sense ACK/NACK channel (1809).Next the capable thereon resource (1813) of subscriber equipment goes up and sends its upstream data, and the base station is gone up at ascending resource (1813) and received upstream data.
As shown in figure 19, suppose here during the base station transmits downlink data that subscriber equipment has upstream data to need transmission.In Figure 19, the base station is user equipment allocation downlink resource (1916~1927) based on persistent scheduling, downlink resource (1916,1917,1920 and 1924~1926) is actually used in the transmission downlink data packet, and whether the present invention does not limit the base station can give other subscriber equipmenies other downlink resources (1918,1919,1921~1923 and 1927) dynamic assignment.In Figure 19, the base station is user equipment allocation ascending resource (1913~1915) based on persistent scheduling, and wherein ascending resource (1914 and 1915) is actually used in transmit ascending data, and ascending resource (1913) is not used for transmit ascending data.In Figure 19, multiplexing ACK/NACK information of broad sense ACK/NACK channel (1901,1905 and 1909) and SRI information; Broad sense ACK/NACK channel (1902,1910 and 1911) only is used for transferring ACK/nack message.Whether the present invention does not limit the base station can distribute to other subscriber equipmenies to the resource dynamic of other broad sense ACK/NACK channel (1903,1904,1906~1908 and 1912).
As shown in figure 19, the base station sends downlink data packet (1916), and subscriber equipment is gone ACK/NACK channel (1901) in a broad sense and gone up multiplexing uplink ACK/nack message and SRI information, and is identical among the method for its processing and mutual flow process and Figure 18.Then, the base station sends downlink data packet (1920), and subscriber equipment receives this downlink data packet (1920).Then, subscriber equipment will send uplink ACK/nack message (being ACK) here on the one hand, on the other hand because subscriber equipment need send upstream data, indicate it not discharge upstream data resource (1914) so subscriber equipment sends SRI information, subscriber equipment is gone up transmission to ACK/NACK information and SRI information multiplexing at broad sense ACK/NACK channel (1905) according to method of the present invention here.The ACK/NACK information and the SRI information of subscriber equipment is detected in the base station, and on the one hand, thereby the base station receives that ACK is in the last downlink data packet that retransmits of downlink resource (1921~1923); On the other hand, SRI information is received in the base station, knows that subscriber equipment need send upstream data, so the base station can not given other subscriber equipmenies ascending resource (1914) dynamic assignment.Then, the capable thereon resource (1914) of subscriber equipment sends its upstream data, and the base station is gone up at ascending resource (1914) and received upstream data.Next, with top class of operation seemingly, the base station sends downlink data (1924), subscriber equipment downlink data receiving (1924), subscriber equipment is gone up multiplexing ACK/NACK information (being NACK) and SRI information here at broad sense ACK/NACK channel (1909) then, indicate the current upstream data that needs to send, the base station receives ACK/NACK information and the SRI information on the broad sense ACK/NACK channel (1809), retransmit the downlink data (1925) of subscriber equipment, can not give other subscriber equipmenies the ascending resource of this subscriber equipment (1915) dynamic assignment simultaneously.Next subscriber equipment is gone up at broad sense ACK/NACK channel (1910) and is sent ACK/NACK information (being NACK) here, and capable thereon resource (1915) goes up its upstream data of transmission.The base station receives the ACK/NACK information on the broad sense ACK/NACK channel (1910), thereby retransmits the downlink data (1926) of subscriber equipment, and the reception upstream data is gone up at ascending resource (1915) in the base station.Subscriber equipment downlink data receiving (1926), and, after ACK is received in the base station, no longer retransmit this packet (1927) at the last ACK that sends of broad sense ACK/NACK channel (1911).

Claims (52)

1. the method for multiplexing SRI information of subscriber equipment and CQI information comprises the steps:
A) subscriber equipment is the resource separated into two parts of 2N unit of N modulation symbol that is used to transmit SRI and CQI of system assignment, wherein the resource of K unit is used to transmit SRI, the resource of a Sheng Xia 2N-K unit is used to transmit CQI simultaneously, and K the modulation symbol of the SRI of note transmission here is s 1, s 2..., s K
B) when subscriber equipment sends SRI, modulation symbol s 1, s 2..., s KThe branch road emission SRI information that is used for SRI; When subscriber equipment does not send SRI, modulation symbol s 1, s 2..., s KThe power of the branch road that is used for SRI be 0, s simultaneously 1, s 2..., s KThe transmitting power of branch road of transmission CQI information greater than other N-K modulation symbol s K+1, s K+2..., s NThe transmitting power of each branch road.
C) N the modulation symbol of user device transmissions is multiplexing CQI and SRI.
2. method according to claim 1 is characterized in that in step a), and each modulation symbol all has I and two branch roads of Q, and defines the resource units of a branch road (I or Q) of a modulation symbol for minimum.
3. method according to claim 1 is characterized in that in step a), modulation symbol s 1, s 2..., s KBranch road transmission SRI information, transmission CQI information in another branch road simultaneously; Other N-K modulation symbol s K+1, s K+2..., s NI and two branch roads of Q be used to transmit CQI information simultaneously.
4. method according to claim 1 is characterized in that in step a), and two time slots that are used for CQI and SRI when system assignment are distributed to different frequencies, are used to transmit the modulation symbol s of SRI 1, s 2... s KAlso correspondingly be distributed on the different frequencies, and the number of the modulation symbol on each frequency is equal or equal substantially.
5. method according to claim 1 is characterized in that in step b), when subscriber equipment sends SRI, and modulation symbol s 1, s 2..., s KThe I and the transmitting power of two branch roads of Q equate, and equal the transmitting power of each branch road of other N-K modulation symbol.
6. method according to claim 1 is characterized in that in step b), when the user establishes
When not sending SRI fully, modulation symbol s 1, s 2..., s KThe power of the branch road that is used for CQI be 2P, wherein P is other N-K modulation symbol s K+1, s K+2..., s NThe transmitting power of each branch road.
7. method according to claim 1 is characterized in that in step b), subscriber equipment utilizes s 1, s 2..., s KThe K that is used for a CQI branch road transmit the bit of the high priority of CQI information.
8. method according to claim 1 is characterized in that in step b), subscriber equipment utilizes s 1, s 1..., s KThe K that is used for a CQI branch road transmit the bit of the low priority of CQI information.
9. method according to claim 1 is characterized in that, when not needing to send SRI, subscriber equipment does not send any signal, and promptly transmitted power is 0; When needs sent SRI, subscriber equipment was at modulation symbol s 1, s 2..., s KThe branch road that is used for SRI send the SRI signal according to a predefined polarity (positive polarity or negative polarity).
10. method according to claim 1 is characterized in that, when not needing to send SRI, subscriber equipment does not send any signal, and promptly transmitted power is 0; When needs sent SRI, subscriber equipment was at modulation symbol s 1, s 2..., s KThe branch road that is used for SRI send signal, and with the extra information of two kinds of possible polarity (positive polarity or negative polarity) transmission 1 bit.
11. method according to claim 1 is characterized in that, subscriber equipment is mapped on the resource of this K unit after SRI information is repeated K time.
12. method according to claim 1 is characterized in that, subscriber equipment is SRI information and length that the sequence S of K multiplies each other, and is mapped to then on the resource of K unit.
13. method according to claim 12 is characterized in that, the different user devices in the same sub-district can dispose mutually orthogonal sequence S.
14. method according to claim 12 is characterized in that, the identical sequence S of different user devices configuration in the same sub-district, but the mutually orthogonal sequence S of configuration between the different districts.
15. a base station receives the method for CQI information and SRI information, comprises the steps:
A) base station receives the upward signal that comprises CQI and SRI from subscriber equipment, and according to reference signal wherein CQI and SRI signal is carried out coherent detection, thereby obtains comprising N the modulation symbol of CQI and SRI.
B) the CQI signal is directly extracted in the base station on the resource of 2N-K the unit that transmits CQI, and it is decoded, thereby obtains the CQI information that subscriber equipment sends.
C) the SRI signal is detected in the base station.
16. method according to claim 15 is characterized in that in step c), directly extracts the SRI signal on the resource of K the unit that transmits SRI.
17. method according to claim 16 is characterized in that in step c), when subscriber equipment was carried out repeated encoding to SRI, the base station was the stack of the SRI signal on the resource of K unit, thus the SRI signal that the judgement subscriber equipment sends.
18. method according to claim 16, it is characterized in that in step c), when subscriber equipment is SRI information and length the sequence S of K when multiplying each other, SRI signal and the stack on the resource of this K unit be multiply by in the base station with identical sequence S, thereby judges the SRI signal that subscriber equipment sends.
19. method according to claim 15 is characterized in that in step c), according to the CQI signal that demodulates, the upward signal of receiving subscriber equipment is carried out interference delete, thereby removes the influence of CQI signal, SRI information is continued to detect in the base station then.
20. method according to claim 15 is characterized in that in step c) the base station is according to modulation symbol s 1, s 2..., s KThe change-detection SRI information of transmitting power of the K that is used for a CQI branch road.
21. the equipment of multiplexing CQI information of subscriber equipment and SRI information comprises emitter, also comprises:
A) CQI information encoder is used for CQI information is encoded;
B) SRI information encoder is used for SRI information is encoded;
C) CQI and SRI multiplexer are used for CQI information and SRI information multiplexing are arrived together.
D) physical channel multiplexer is used for the multiplexed signals of CQI and SRI is multiplexed into other physical channels.
22. a base station receives the equipment of CQI information and SRI information, comprises receiving system, also comprises:
A) CQI information decoding device is used for CQI information is decoded;
B) SRI information decoding device is used for SRI information is decoded;
C) CQI and SRI demodulation multiplexer are used for going out CQI information and SRI information from the multiplexed signals demultiplexing of CQI and SRI;
D) physical channel demodulation multiplexer is used for multiplexed signals and other physical channels that demultiplexing goes out CQI and SRI.
23. a subscriber equipment is handled the method for broad sense ACK/NACK channel, comprises the steps:
A) base station assigns is used for the up ACK/NACK channel of broad sense of Persistent Scheduling business, and note broad sense ACK/NACK channel comprises N modulation symbol;
B) according to current user equipment whether downlink data transmission and transmitting uplink data are arranged, subscriber equipment is finished multiple different function with the up ACK/NACK channel of broad sense.
24. method according to claim 23 is characterized in that in step b), described difference in functionality is meant transmission uplink ACK/nack message, SRI information and other ascending control informations etc.
25. method according to claim 23 is characterized in that in step b), when not having transmitting uplink data as downlink data transmission, broad sense ACK/NACK channel is transferring ACK/nack message and SRI information simultaneously.
26. method according to claim 23, it is characterized in that in step b), when existing downlink data transmission has transmitting uplink data again, the broad sense ACK/NACK channel of this semi-static configuration is used for transferring ACK/nack message, perhaps simultaneously transferring ACK/nack message and SRI information, perhaps transferring ACK/nack message and other ascending control information simultaneously.
27. method according to claim 23, it is characterized in that in step b), when not having downlink data transmission also not have transmitting uplink data, broad sense ACK/NACK channel is exclusively used in transmission SRI information, perhaps transmits SRI information and other ascending control informations simultaneously.
28. method according to claim 23 is characterized in that in step b) when not having downlink data transmission as transmitting uplink data, subscriber equipment can utilize this broad sense ACK/NACK Channel Transmission SRI information and/or other ascending control informations.
29. method according to claim 23, it is characterized in that in step b), when multiplexing SRI information and uplink ACK/nack message, uplink ACK/nack message takies a branch road (I or the Q) transmission of each modulation symbol in this N modulation symbol, and another branch road (Q or I) of each modulation symbol in this N modulation symbol is used to transmit SRI information simultaneously.
30. method according to claim 29 is characterized in that, when subscriber equipment sends SRI, and the branch road emission SRI information that is used for SRI of this N modulation symbol, and the transmitting power of the I of this N modulation symbol and two branch roads of Q equates; When subscriber equipment did not send SRI, the power of the branch road that is used for SRI of this N modulation symbol was 0.
31. method according to claim 29 is characterized in that, to the SRI transmission, subscriber equipment can only transmit 1 bit information, promptly indicates whether to send SRI.
32. method according to claim 29 is characterized in that, whether it has sent on the basis of SRI subscriber equipment in indication, can multiple send the information of 1 bit.
33. method according to claim 29 is characterized in that, subscriber equipment is mapped on this N modulation symbol after SRI information is repeated N time.
34. method according to claim 29 is characterized in that, subscriber equipment is SRI information and length that the sequence S of N multiplies each other, and is mapped to then on N the modulation symbol.
35. a base station receives the method for broad sense ACK/NACK channel, comprises the steps:
A) base station receives the upward signal from the broad sense ACK/NACK channel of subscriber equipment, and carries out coherent detection according to reference signal wherein, thereby obtains comprising N modulation symbol of ascending control information;
B) according to current user equipment whether downlink data transmission and transmitting uplink data are arranged, the ascending control information that possible subscriber equipment sends is detected in the base station.
36. method according to claim 35 is characterized in that in step b), ack/nack signal and summation are directly extracted in the base station on the branch road that is used for ACK/NACK of this N modulation symbol, thereby obtain the ACK/NACK information that subscriber equipment sends.
37. method according to claim 35 is characterized in that in step b), this N modulation symbol and summation be multiply by with the sequence of gripping altogether of orthogonal sequence F in the base station, thereby obtain the ACK/NACK information that subscriber equipment sends.
38. method according to claim 35 is characterized in that in step b), SRI signal and summation are directly extracted in the base station on the branch road that is used for SRI of this N modulation symbol, thereby obtain the SRI information that subscriber equipment sends.
39. method according to claim 35 is characterized in that in step b), this N modulation symbol and summation be multiply by with the sequence of gripping altogether of orthogonal sequence F in the base station, thereby obtain the SRI information that subscriber equipment sends.
40. method according to claim 35, it is characterized in that in step b),, the upward signal of receiving subscriber equipment is carried out interference delete according to the ack/nack signal that demodulates, thereby remove the influence of ack/nack signal, SRI information is continued to detect in the base station then.
41. the equipment of multiplexing ACK/NACK information of subscriber equipment and SRI information comprises emitter, also comprises:
A) ACK/NACK information encoder is used for ACK/NACK information is encoded;
B) SRI information encoder is used for SRI information is encoded;
C) ACK/NACK and SRI multiplexer are used for ACK/NACK information and SRI information multiplexing are arrived together.
D) physical channel multiplexer is used for the multiplexed signals of ACK/NACK and SRI is multiplexed into other physical channels.
42. a base station receives the equipment of ACK/NACK information and SRI information, comprises receiving system, also comprises:
A) ACK/NACK information decoding device is used for ACK/NACK information is decoded;
B) SRI information decoding device is used for SRI information is decoded;
C) ACK/NACK and SRI demodulation multiplexer are used for going out ACK/NACK information and SRI information from the multiplexed signals demultiplexing of ACK/NACK and SRI;
D) physical channel demodulation multiplexer is used for multiplexed signals and other physical channels that demultiplexing goes out ACK/NACK and SRI.
43. the method for the CAZAC sequence of a collocating uplink control channel comprises the steps:
A) the cycle changing pattern of the multiple CAZAC sequence of system configuration;
B) changing pattern of different CAZAC sequences is adopted in the sub-district faced mutually of system configuration.
44., it is characterized in that in step a) that the cycle of changing pattern is one or more TTI according to the described method of claim 43.
45., it is characterized in that in step a) that the cycle of changing pattern is a radio frames according to the described method of claim 43.
46., it is characterized in that in step a) that the variation with time slot in one-period of CAZAC sequence changes according to the described method of claim 43.
47., it is characterized in that in step a) that the CAZAC sequence changes with the variation of SCFDMA symbol according to the described method of claim 43 in one-period.
48., it is characterized in that in step b) that (BCH) sends this configuration information by broadcast channel according to the described method of claim 43.
49., it is characterized in that in step b) the mapping relations of definition CAZAC sequence variation pattern and cell ID (Cell ID) or cell group identification (Cell GroupID) etc. according to the described method of claim 43.
50., it is characterized in that in step b) the mapping relations of the orthogonal code of definition CAZAC sequence variation pattern and primary synchronization channel (P-SCH), auxiliary synchronization channel (S-SCH) and descending public reference signal etc. according to the described method of claim 43.
51. a subscriber equipment sends uplink control signaling equipment, comprises emitter, also comprises:
A) CAZAC sequence sequence number controller is used for generating according to CAZAC sequence variation pattern the sequence number of the CAZAC sequence of each specific time slot or SCFDMA symbol;
B) CAZAC sequence generator is used for generating corresponding CAZAC sequence according to sequence number;
C) upstream control signaling maker is used to generate upstream control signaling;
D) physical channel multiplexer is used for upstream control signaling is multiplexed into other physical channels.
52. a base station receives uplink control signaling equipment, comprises receiving system, also comprises:
A) CAZAC sequence sequence number controller is used for generating according to CAZAC sequence variation pattern the sequence number of the CAZAC sequence of each specific time slot or SCFDMA symbol;
B) CAZAC sequence generator is used for generating corresponding CAZAC sequence according to sequence number;
C) upstream control signaling resolver is used to detect the upstream control signaling that subscriber equipment sends;
D) physical channel demodulation multiplexer is used for demultiplexing upstream control signaling and other physical channels.
CNA2007100793003A 2007-02-16 2007-02-16 Device and method for transmitting scheduling request information Pending CN101247166A (en)

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CN101795497B (en) * 2009-02-01 2012-02-15 电信科学技术研究院 Sending method of scheduling request and EU (User Equipment) thereof
CN102474480A (en) * 2009-07-29 2012-05-23 高通股份有限公司 Methods and apparatus for blind interference reduction techniques
US8320323B2 (en) 2007-04-27 2012-11-27 Huawei Technologies Co., Ltd. Method for allocating time and frequency resource for resource request indicator, method for transmitting resource request indicator and device thereof
CN101369872B (en) * 2008-09-12 2012-11-28 中兴通讯股份有限公司 Transmitting method and device of rank indication information
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