CN101242384A - Device and method for transmitting scheduling request information - Google Patents

Abstract

A device and method for transmitting uplink control signaling such as scheduling request indication information. The method for the user equipment to multiplex the SRI information and the CQI information, when the SRI information does not need to be sent, the user equipment can use all the uplink power to transmit the CQI information, thereby improving the transmission performance of the CQI information. The method for the user equipment to process the generalized ACK/NACK channel can increase the opportunity of the user equipment to transmit SRI information, thereby reducing the transmission delay of the uplink scheduling request, and at the same time can reduce the signaling overhead of allocating the SRI channel. The CAZAC sequence method of configuring the uplink control channel can average the interference from adjacent cells, thereby improving the transmission performance of the uplink control signaling.

Description

Device and method for transmitting scheduling request information

technical field

The present invention relates to a wireless communication system, and more specifically relates to a device and method for transmitting scheduling request information in a wireless communication system.

Background technique

Now, the 3GPP standardization organization has begun to carry out the long-term evolution (LTE) of its existing system specifications. Among the many physical layer transmission technologies, the downlink transmission technology based on Orthogonal Frequency Division Multiplexing (OFDM) and the uplink transmission technology based on Single Carrier Frequency Division Multiple Access (SCFDMA) are research hotspots. OFDM technology is essentially a multi-carrier modulation communication technology. Its basic principle is to decompose a high-rate data stream into several low-rate data streams and transmit them simultaneously on a group of mutually orthogonal sub-carriers. OFDM technology has performance advantages in many aspects due to its multi-carrier nature. SCFDMA technology is essentially a single-carrier transmission technology, and its signal peak-to-average ratio (PAPR) is relatively low, so that the power amplifier of the mobile terminal can work with higher efficiency and expand the coverage of the cell. At the same time, by adding a cyclic prefix (CP ) and frequency domain equalization, its processing complexity is relatively low.

According to the existing discussions about LTE, Fig. 1 is the uplink frame structure of the LTE system, and the time length of its wireless frame (101, 102, 103) is 10ms the same as that of WCDMA; each frame is subdivided into a plurality of time slots (104 -107), the current assumption is that each radio frame contains 20 time slots, and the time length of the time slot is 0.5ms; each time slot contains seven SCFDMA symbols (108-114). According to the current discussion results, the transmission time interval (TTI) is 1 ms, which is equal to the time length of two time slots.

Fig. 2 is the signal processing process of SCFDMA, and the transmitting end obtains the modulation symbol (201) that it needs to send through certain processing, transforms to frequency domain through DFT module (202), then maps to system allocation through subcarrier mapping module (203) The position of the subcarrier is then converted back to the time domain through the IFFT module (204), then the CP is added (205), and then subsequent operations are performed. Note that to distinguish from the IFFT operation (204) and the DFT operation performed on reception, the DFT operation of the module (201) is called Pre-DFT operation.

According to the current discussion results of LTE, physical time-frequency resources are divided into multiple resource blocks (RBs), and each resource block contains M consecutive subcarriers in the frequency domain and N consecutive symbols in time. is an OFDM symbol, and is an SCFDMA symbol for the uplink. According to the current discussion result of LTE, the value of M is 12, and the value of N depends on the number of OFDM symbols or SCFDMA symbols in one time slot.

According to the current LTE discussion on uplink control signaling, the uplink control signaling here includes uplink acknowledgment/denial information (ACK/NACK), channel quality indicator (CQI) and other information. When there is no uplink data transmission, uplink control signaling is sent on reserved frequency regions. As shown in FIG. 3 , these reserved frequency regions are distributed at both ends of the frequency band. And in order to take advantage of the effect of frequency diversity, the uplink control signaling of a user equipment (UE) occupies a time slot at both ends of the frequency band and transmits it in a TTI, that is, or uses the first time slot (301) at the upper end of the frequency band and the first time slot at the lower end of the frequency band. or use the first time slot (303) at the lower end of the frequency band and the second time slot (304) at the upper end of the frequency band. When there is uplink data transmission, the uplink control signaling is transmitted in the uplink data channel resources allocated by the base station, and multiplexed in the way of TDM, so that the control information and the uplink data of the user equipment are multiplexed together before Pre-DFT, Thus, the single carrier characteristic is maintained.

According to the current LTE discussion results, when there is no uplink data transmission, as shown in Figure 4, the uplink control information is transmitted in the reserved frequency area. The current discussion focuses on two multiple access methods, namely FDM or CDM . Among them, the FDM access method is to allocate different subcarrier resources to the uplink control information of different user equipments; and the CDM access method means that multiple user equipments are allocated the same group of subcarriers but different codewords, so that in the code domain Differentiate between multiple user devices. In the current discussion of LTE, the sequence with constant envelope zero autocorrelation (CAZAC) property is a main candidate sequence of the CDM method. A set of new sequences is obtained by performing different cyclic shifts on the same CAZAC sequence, and the set of sequences has good cross-correlation properties, so that different user equipments are assigned to use different sequences in the set of new sequences. The number of cyclic shift values available here is limited by the maximum multipath delay of the wireless channel. In the current discussion of LTE, when the system allocates multiple resource blocks for uplink control signaling, a mixed multiplexing method is FDM multiplexing between different resource blocks, and CDM within the same resource block way of reuse.

According to the current discussions on Scheduling Request (SR) in LTE, when the base station schedules the user equipment for uplink data transmission, the SR information is transmitted through the uplink data channel. When the base station does not schedule uplink data transmission for the user equipment, as shown in FIG. 4 , the process of sending uplink scheduling request information by the user equipment currently in the uplink synchronization state. As shown in Figure 4, first, the user equipment sends scheduling request indication (SRI) information (401); after receiving the SRI information of the user equipment, the base station sends uplink resource allocation control signaling (402) for the user equipment, so that the allocation is relatively small resources, such as a resource block; after receiving the uplink resource allocation signaling, the user equipment sends actual scheduling request information on the resource allocated by the base station, and can also send a part of user data at the same time (403).

SRI information is an unpredictable uplink control information, and the frequency of SRI is very low, so when the system designs a dedicated channel to send SRI, SRI is generally transmitted using on-off keying (OOK). In this way, when SRI needs to be sent, The user equipment sends this information with a certain power, that is, the transmission power is greater than 0; when there is no need to send the SRI, the user equipment does not send any signal, that is, the transmission power is 0.

In the current discussion of LTE, it is proposed to transmit SRI information by multiplexing uplink CQI channels. The first method is to reserve a CQI code word to represent SRI information. With this method, when the user equipment sends SRI information, the CQI report is interrupted once, so it may have a certain impact on the base station scheduler. The second method is to jointly encode the SRI information bits and CQI bits and then send them on the CQI channel. This method can also be understood as reserving one of the available bits carried by the CQI channel for SRI, so To a certain extent, the performance of the CQI report is reduced; and in practice, the link performance requirements of SRI and CQI are generally different, but with this joint coding method, the link performance of SRI and CQI is the same, that is, It is said that the SRI and CQI information cannot be transmitted according to the respective performance requirements of the SRI and CQI.

In the current discussion of LTE, the technology of Persistent Scheduling (Persistent Scheduling) is proposed, which is to effectively transmit some periodic data packets with a fixed number of bits and a relatively small number of bits, such as VoIP services, interactive games and other real-time business etc. For these services, the system uses the Persistent Scheduling method to allocate resources semi-statically. When the user equipment actually needs to transmit data, it occupies the pre-allocated resources; when the user equipment does not need to transmit data at certain times, such as VoIP service During the silent period (silent period), in order to improve resource utilization, the resources pre-allocated to the user equipment can be allocated to other user equipment by means of dynamic scheduling. In this way, in order to realize that the base station controls the allocation of uplink resources to the user equipment by using the Persistent Scheduling method, the user equipment needs to transmit certain control information to indicate whether it needs to occupy the uplink resources currently.

In the current discussion of LTE, various methods of indicating whether the user equipment needs to occupy its uplink resources have been proposed. The first method is based on the assignment request method, that is, before the user equipment needs to send data, it notifies the base station that it needs to occupy resources, so that when the base station receives the assignment request from the user equipment, the uplink resource When the base station does not receive an assignment request from the user equipment, the base station can dynamically allocate the resources of the user equipment to other user equipment. The second method is based on the release request (release request), that is, when the user equipment does not need to send data, it notifies the base station to release resources, so that when the base station does not receive a release request from the user equipment, it receives data on its uplink resources ; When the base station receives the release request from the user equipment, the base station can dynamically allocate the resource of the user equipment to other user equipment. The third method is based on the state transition method, that is, when the user equipment has uplink data, the user equipment sends an assignment request to notify the base station that it needs to occupy resources, and then the user equipment continues to occupy this resource until the user equipment has no uplink data. , the user equipment sends a release request to notify the base station to release resources; after receiving the release request, the base station can dynamically allocate the uplink resources of the user equipment to other user equipment until the base station receives an assignment request from the user equipment. Therefore, in the current discussion of LTE, the method of indicating whether the user equipment needs to occupy its uplink resource has not been finally decided yet.

During the transmission of persistent schduling services, the size of the data packets changes. Taking the VoIP service as an example, the average size of the data packets is different during the conversation period (talkspurt) and the silent period (silent period), and the data packet The time interval for sending is also different, there is a new data packet every 20ms during the call, and there is a new data packet every 160ms during the silent period. In addition, the output rate of the Adaptive Multi-Rate (AMR) encoder will also change. In these cases, the base station may need to change the persistent schduling resources allocated to the user equipment. These state changes can be indicated by a specific method or control signaling, so as to optimize resources for persistent schduling of the user equipment.

Contents of the invention

The purpose of the present invention is to provide a device and method for transmitting uplink control information such as scheduling request indication information in a wireless communication system.

According to one aspect of the present invention, a method for multiplexing SRI information and CQI information of a user equipment includes the following steps:

a) The user equipment divides the resources of 2N units allocated by the system for transmitting N modulation symbols of SRI and CQI into two parts, wherein K units of resources are used for transmitting SRI, and the remaining NK units of resources are used For the transmission of CQI, it is recorded here that the K modulation symbols for sending SRI are s ₁ , s ₂ ,..., s _K ;

b) When the user equipment sends SRI, the SRI branches of the modulation symbols s ₁ , s ₂ , ..., s _K transmit SRI information; when the user equipment does not send SRI, the modulation symbols s ₁ , s ₂ , ..., the power of the branch used for SRI of s _K is 0, and at the same time, the transmission power of the branch of s ₁ , s ₂ , ..., s _K that transmits CQI information is greater than the other NK modulation symbols s _{K+ 1} , s _K+2 ,..., the transmit power of each branch of s _N.

c) The user equipment transmits N modulation symbols multiplexed with CQI and SRI.

According to another aspect of the present invention, a method for a base station to receive CQI information and SRI information includes the following steps:

a) The base station receives the uplink signal including CQI and SRI from the user equipment, and performs coherent detection on the CQI and SRI signal according to the reference signal therein, so as to obtain N modulation symbols including CQI and SRI.

b) The base station directly extracts and decodes the CQI signal from 2N-K unit resources for transmitting the CQI, so as to obtain the CQI information sent by the user equipment.

c) The base station detects the SRI signal.

According to another aspect of the present invention, a device for multiplexing CQI information and SRI information for a user equipment includes a transmitting device, and further includes:

a) a CQI information encoder, configured to encode the CQI information;

b) an SRI information encoder, configured to encode the SRI information;

c) CQI and SRI multiplexer, used to multiplex CQI information and SRI information together.

d) A physical channel multiplexer, used to multiplex the CQI and SRI multiplexed signals with other physical channels.

According to another aspect of the present invention, a device for receiving CQI information and SRI information by a base station includes a receiving device, and further includes:

a) a CQI information decoder, configured to decode the CQI information;

b) an SRI information decoder, configured to decode the SRI information;

c) CQI and SRI demultiplexer, for demultiplexing CQI information and SRI information from the multiplexed signal of CQI and SRI;

d) A physical channel demultiplexer, used for demultiplexing the multiplexed signal of CQI and SRI and other physical channels.

With the method of the present invention, when there is no need to send SRI information, the user equipment can use all uplink power to transmit CQI information, thereby improving the transmission performance of CQI information.

According to another aspect of the present invention, a method for a user equipment to process a generalized ACK/NACK channel includes the following steps:

a) The base station allocates a generalized uplink ACK/NACK channel for the Persistent Scheduling service, and the generalized ACK/NACK channel contains N modulation symbols;

b) According to whether the current user equipment has downlink data transmission or uplink data transmission, the user equipment uses the generalized uplink ACK/NACK channel to perform various functions.

According to another aspect of the present invention, a method for a base station to receive a generalized ACK/NACK channel includes the following steps:

a) The base station receives the uplink signal of the generalized ACK/NACK channel from the user equipment, and performs coherent detection according to the reference signal therein, so as to obtain N modulation symbols containing uplink control information;

b) According to whether the current user equipment has downlink data transmission and uplink data transmission, the base station detects possible uplink control information sent by the user equipment.

According to another aspect of the present invention, a device for multiplexing ACK/NACK information and SRI information for user equipment, including a transmitting device, further includes:

a) ACK/NACK information encoder, for encoding ACK/NACK information;

b) an SRI information encoder, configured to encode the SRI information;

c) ACK/NACK and SRI multiplexer, used to multiplex ACK/NACK information and SRI information together.

d) A physical channel multiplexer, used to multiplex the multiplexed signals of ACK/NACK and SRI with other physical channels.

According to another aspect of the present invention, a device for receiving ACK/NACK information and SRI information by a base station includes a receiving device, and further includes:

a) ACK/NACK information decoder, used to decode ACK/NACK information;

b) an SRI information decoder, configured to decode the SRI information;

c) ACK/NACK and SRI demultiplexer, for demultiplexing ACK/NACK information and SRI information from the multiplexed signal of ACK/NACK and SRI;

d) A physical channel demultiplexer, used for demultiplexing the multiplexed signal of ACK/NACK and SRI and other physical channels.

By adopting the method of the present invention, it is possible to increase the opportunity for user equipment to transmit SRI information, thereby reducing the transmission time delay of uplink scheduling requests, and at the same time reducing the signaling overhead for allocating SRI channels.

According to another aspect of the present invention, a method for configuring a CAZAC sequence of an uplink control channel includes the following steps:

a) The system configures the periodic change patterns of various CAZAC sequences;

b) The system configures adjacent cells to use different CAZAC sequence change patterns.

According to another aspect of the present invention, a device for sending uplink control signaling by a user equipment includes a transmitting device, and further includes:

a) CAZAC sequence number controller, used to generate the sequence number of the CAZAC sequence of each specific time slot or SCFDMA symbol according to the CAZAC sequence change pattern;

b) a CAZAC sequence generator, configured to generate a corresponding CAZAC sequence according to the serial number;

c) an uplink control signaling generator, configured to generate uplink control signaling;

d) A physical channel multiplexer, used to multiplex the uplink control signaling with other physical channels.

According to another aspect of the present invention, a device for receiving uplink control signaling by a base station includes a receiving device, and further includes:

a) CAZAC sequence number controller, used to generate the sequence number of the CAZAC sequence of each specific time slot or SCFDMA symbol according to the CAZAC sequence change pattern;

b) a CAZAC sequence generator, configured to generate a corresponding CAZAC sequence according to the serial number;

c) an uplink control signaling parser, configured to detect uplink control signaling sent by the user equipment;

d) A physical channel demultiplexer, used for demultiplexing uplink control signaling and other physical channels.

By adopting the method of the present invention, the interference from adjacent cells can be averaged, thereby improving the transmission performance of uplink control signaling.

According to another aspect of the present invention, a method for multiplexing ACK/NACK and CQI by a user equipment includes the following steps:

a) For the N modulation symbol resources allocated by the system for transmitting ACK/NACK and CQI, the user equipment transmits CQI or ACK/NACK in the I branch and Q branch of K modulation symbols respectively, while the other NK modulation symbols Symbols are dedicated to the transmission of CQI, where K modulation symbols for sending ACK/NACK are recorded as s ₁ , s ₂ , ..., s _K .

b) When the user equipment sends ACK/NACK, the branches of modulation symbols s ₁ , s ₂ , ..., s _K for ACK/NACK transmit ACK/NACK; when the user equipment does not send ACK/NACK, modulate The power of the branch used for ACK/NACK of symbols s ₁ , s ₂ , ..., s _K is 0, while the transmit power of the branch transmitting CQI information of s ₁ , s ₂ , ..., s _K The transmission power of each branch greater than the other NK modulation symbols s _K+1 , s _K+2 , ..., s _N .

c) The user equipment transmits N modulation symbols multiplexed with CQI and ACK/NACK.

Description of drawings

Figure 1: LTE system uplink frame structure

Figure 2: SCFDMA signal processing

Figure 3: Structure of the uplink control channel

Figure 4: Process of transmitting scheduling request information

Figure 5: N modulation symbols when sending SRI

Figure 6: N modulation symbols when no SRI is transmitted

Figure 7: Equipment for multiplexing CQI and SRI by user equipment

Figure 8: Equipment for base station CQI and SRI

Figure 9: Equipment for Multiplexing ACK/NACK and SRI by User Equipment

Figure 10: Equipment for receiving ACK/NACK and SRI at the base station

Figure 11: The device for the user equipment to send uplink control signaling

Figure 12: Equipment for receiving uplink control signaling by the base station

Figure 13: Schematic diagram of multiplexing CQI and SRI

Figure 14: Schematic diagram of multiplexing ACK/NACK and SRI

Figure 15: Schematic diagram 1 of user equipment sending SRI

Figure 16: Schematic diagram of user equipment sending SRI II

Figure 17: Schematic diagram of configuring different CAZAC sequence change patterns

Figure 18: Schematic diagram of user equipment sending SRI III

Figure 19: Schematic diagram 4 of user equipment sending SRI

Detailed ways

The purpose of the present invention is to provide a device and a method for transmitting uplink control information such as scheduling request indication information in a wireless communication system. In the following description of the present invention, the definition of modulation symbols is as follows: when the system does not adopt the CDM multiple access method, for OFDM transmission technology, each modulation symbol is defined to correspond to a subcarrier; for SCFDMA transmission technology, each modulation symbol is defined as The symbol corresponds to one symbol before the Pre-DFT operation. When the CDM multiple access method is adopted in the system, each modulation symbol refers to a symbol before spreading with an orthogonal code. For example, according to the current discussion results on uplink control signaling in LTE, on the same physical resource, the control signaling of multiple user equipments is multiplexed in CDM multiple access mode. Specifically, on each SCFDMA symbol, Each user is assigned a basic CAZAC sequence and a specific cyclic shift value, and only transmits one modulation symbol, which is multiplied by its specific cyclic shifted CAZAC sequence and then input to the Pre-DFT module for processing.

The present invention proposes a method for multiplexing SRI information and CQI information together for transmission. Here it is assumed that the number of modulation symbols in the physical resources allocated by the system for transmission of SRI information and CQI information is N, denoted as s ₁ , s ₂ ,..., s _N , and each modulation symbol adopts a similar quadrature amplitude modulation (QAM) mode, such as QPSK modulation mode, that is, each modulation symbol has two branches, I and Q. The present invention defines a branch (I or Q) of a modulation symbol as the smallest resource unit, so that the total physical resources include resources of 2N units. The present invention proposes to divide the resources of these 2N units into two parts, and use them for transmitting SRI and CQI respectively. It is assumed that K units of resources are used to transmit SRI, and the remaining 2N-K units of resources are used to transmit CQI. Since CQI is generally multi-bit information, here K is less than or equal to N. The present invention proposes that K units of resource allocated to transmit SRI belong to different modulation symbols. Without loss of generality, it is assumed that K modulation symbols for transmitting SRI are s ₁ , s ₂ , . . . , s _K . In this way, when K is less than N, in the total resources allocated by the system, one branch of modulation symbols s ₁ , s ₂ , ..., s _K transmits SRI information, while another branch transmits CQI information; other NK modulation symbols The I and Q branches of symbols s _K+1 , s _K+2 , ..., s _N are used to transmit CQI information at the same time. According to the structure of the uplink control channel of the LTE system as shown in Figure 3, when the two time slots allocated by the system for CQI and SRI are distributed to different frequencies, the modulation symbols s ₁ , s ₂ , . .., s _K are also correspondingly distributed to different frequencies, and the number of modulation symbols on each frequency is guaranteed to be equal or substantially equal, thereby ensuring the frequency diversity performance of SRI transmission.

The present invention proposes that when the user equipment multiplexes the SRI information and the CQI information together, the SRI information is transmitted by using a modulation technique similar to OOK. Specifically, when the user equipment sends SRI, the branches used for SRI of modulation symbols s ₁ , s ₂ , ..., s _K transmit SRI information, that is, the transmit power of these branches used for SRI is greater than 0, One method is to configure the transmit power of the I and Q branches of s ₁ , s ₂ , ..., s _K to be equal; the other method is to set the transmit power of each branch according to the performance requirements of CQI and SRI, At this time, the transmit power of the branch used for the CQI and the transmit power of the branch used for the SRI may not be equal. When the user equipment does not transmit SRI, the power of the SRI branch of modulation symbols s ₁ , s ₂ , ..., s _K is 0, and these saved powers are used to improve s ₁ , s ₂ , . .., the transmit power of the branches transmitting CQI information of s _K , so that the transmit power of the branches transmitting CQI information of s ₁ , s ₂ , ..., s _K is greater than the other NK modulation symbols s _K+1 , s _K+2 ,..., the transmit power of each branch of s _N. For example, for the uplink control channel in the LTE system, in order to ensure the coverage characteristics of the user equipment, the user equipment should try to transmit CQI information and SRI information with a constant transmission power within one TTI. At this time, as shown in Figure 5, when the user equipment When sending SRI, the transmission power of the I and Q branches of the modulation symbols s ₁ , s ₂ , ..., s _K is equal, and equal to the transmission power of each branch of the other NK modulation symbols; as shown in Figure 6 As shown, when the user equipment does not transmit SRI, the power of the branch used for SRI of modulation symbols s ₁ , s ₂ , ..., s _K is 0, while the branch used for CQI is transmitted with twice the power , that is, assuming that the transmit power of each branch of other NK modulation symbols is P, then the power of the branches used for CQI of modulation symbols s ₁ , s ₂ , ..., s _K is 2P, which is beneficial to improve The performance of CQI information transmission; in this way, regardless of whether the user equipment actually sends SRI information, the transmission power of all N modulation symbols is equal. Note: In Figure 5 and Figure 6, for the convenience of drawing, the I branch of modulation symbols s ₁ , s ₂ , ..., s _K is used for CQI, and the Q branch is used for SRI. In fact, the present invention does not limit How to allocate the I branch and the Q branch of the modulation symbols s ₁ , s ₂ , ..., s _K.

According to the method mentioned above, regardless of whether the user equipment actually sends SRI information, the transmit power P of each branch (I and Q) of the modulation symbols s _K+1 , s _K+2 , ..., s _N is basically is not affected; according to whether the user equipment sends SRI information, the transmit power of the CQI branch of modulation symbols s ₁ , s ₂ , ..., s _K can be P or 2P, so the system can use This property improves the performance of CQI. The first method is that the system uses K branches for CQI of s ₁ , s ₂ , ..., s _K to transmit the high-priority bits of the CQI information, and when the user equipment transmits the SRI information, it is guaranteed The transmission performance of the high-priority bits of the CQI information meets the requirements. At this time, the system can configure the performance of the high-priority bits to be equivalent to the performance of the low-priority bits, or still higher than the performance of the low-priority bits. In addition, this The invention does not rule out the possibility that the performance of the high-priority bits is lower than that of the low-priority bits; in this way, when the user equipment does not transmit SRI, the performance of the high-priority bits is further guaranteed, thereby improving the performance of CQI transmission. The second method is that the system uses K branches for CQI of s ₁ , s ₂ , ..., s _K to transmit low priority bits of CQI information, and when the user equipment does not transmit SRI, these The performance of the low-priority bits meets or slightly exceeds its performance requirements; in this way, when the user equipment transmits the SRI, the performance of the high-priority bits is guaranteed by reducing the performance of the low-priority CQI bits, so that the CQI transmission Improved performance.

In the method of the present invention, the coherent demodulation method is adopted for the CQI information and the SRI information, that is to say, the user equipment simultaneously transmits the reference signal and the actual control signal (CQI and SRI) within one TTI, so that , the base station detects the CQI and SRI information according to the reference signal. For SRI information, the first processing method is that when there is no need to send SRI, the user equipment does not send any signal, that is, the transmission power is 0; when it is necessary to send SRI, the user equipment modulates symbols s ₁ , s ₂ , ... , the branch used for SRI of s _K sends the SRI signal according to a predefined polarity (positive polarity or negative polarity). Using the first processing method, the user equipment transmits 1-bit information, which indicates whether to send SRI. The second processing method is that when there is _no need to send SRI, the user equipment does not send any signal, that is, the transmission power is 0; when it is necessary to send SRI, the user equipment modulates symbols s ₁ , s ₂ , ... The branch for SRI is signaled and 1 bit of extra information is sent with two possible polarities (positive or negative). With the second sending method, the user equipment can send 1 more bit of information on the basis of indicating whether it has sent the SRI. The second processing method above, that is, the method of sending one more bit of information, is not limited to the application in the present invention. For other transmission SRI methods, as long as the SRI transmission is based on the processing method of coherent demodulation, it can be indicated whether it On the basis of sending the SRI, send 1 more bit of information.

In the method of the present invention, when the SR information is transmitted on the K branches of the modulation symbols s ₁ , s ₂ , ..., s _K used to transmit the SRI, the first method is that the user equipment repeats the SRI information K times , mapped to the resources of these K units. The second method is that the user equipment multiplies the SRI information with the sequence S of length K, and then maps it to K units of resources. For the second method, at this time, different user equipments in the same cell can be configured with mutually orthogonal sequences S; or different user equipments in the same cell are configured with the same sequence S, but different cells are configured with mutually orthogonal sequences S sequence S. According to the structure of the uplink control channel of the LTE system shown in Figure 3, it is assumed that the modulation symbols s ₁ , s ₂ , ..., s _K used to transmit SRI are evenly distributed to two different frequencies, and each The number of modulation symbols on the frequency is "K/2" and "K/2", respectively, the user equipment can multiply the SRI information with the sequence of length "K/2" and "K/2", and then respectively Mapped onto "K/2" and "K/2" modulation symbols of the corresponding frequency.

In the present invention, the physical resources occupied by SRI and CQI are completely separated, so the base station can detect SRI and CQI information completely independently. The base station receives the uplink signal including CQI and SRI from the user equipment, and performs coherent detection on the CQI and SRI signal according to the reference signal therein, so as to obtain N modulation symbols including CQI and SRI. When receiving CQI information, the base station does not need to care whether the user equipment has sent SRI information, and directly extracts and decodes the CQI signal on the resources of 2N-K units of CQI transmission, so as to obtain the CQI information sent by the user equipment.

The first method for the base station to receive SRI information is that the base station does not need to care about the CQI information sent by the user equipment, and directly extracts the SRI signal from the K units of resources that transmit the SRI. Next, when the user equipment performs repetitive coding on the SRI, The base station superimposes the SRI signal on the resources of K units to judge the SRI signal sent by the user equipment; when the user equipment multiplies the SRI information with the sequence S of length K, the base station multiplies the K units by the same sequence S The SRI signal on the resource is superimposed, so as to determine the SRI signal sent by the user equipment.

The second method for the base station to receive SRI information is to first receive the CQI signal, and then perform interference cancellation on the uplink signal received from the user equipment according to the demodulated CQI signal, thereby removing the influence of the CQI signal, and then the base station follows the first method The method receiving the SRI continues to detect the SRI information.

According to the multiplexing method for the user equipment to send CQI and SRI in the present invention, when the user equipment transmits SRI information, the transmission power of K branches used for CQI of modulation symbols s ₁ , s ₂ , ..., s _K Equal to the transmit power of each branch of other NK modulation symbols; when the user equipment does not transmit SRI information, modulation symbols s ₁ , s ₂ ,..., s _K are used for the transmission of K branches of CQI The power is twice the transmit power of each branch of the other NK modulation symbols, and the base station can use this property to detect SRI information.

According to the multiplexing method for sending CQI and SRI by user equipment in the present invention, for K modulation symbols s ₁ , s ₂ , ..., s _K that multiplex CQI information and SRI information, when the user equipment transmits SRI information , s ₁ , s ₂ ,..., s _K The transmit power of K branches used to transmit CQI information is equal to the transmit power of K branches used to transmit SRI information; when the user equipment does not transmit SRI information , because s ₁ , s ₂ ,..., the transmit power of the K branches used to transmit CQI information of s _K is twice the transmit power of each branch of the other NK modulation symbols, and s ₁ , s ₂ ,..., s _K the transmission power of K branches used to transmit SRI information is 0, that is, s ₁ , s ₂ ,..., s _K used to transmit CQI information K branches The transmission power of the K branches is much larger than that of the K branches used to transmit SRI information, and the base station can use this property to detect SRI information.

As shown in Fig. 7 is a device for multiplexing CQI information and SRI information of user equipment, wherein the CQI information encoder (701), SRI information encoder (702), CQI and SRI multiplexer (703) is the embodiment of the present invention. First, the user equipment encodes its CQI information in the CQI information encoder (701), and at the same time, the user equipment encodes the SRI information in the SRI information encoder (702). The encoding here can be repeated encoding or SRI and a sequence multiplied. Then the user equipment multiplexes the coded CQI and SRI in the multiplexer (703). Next, the multiplexed CQI and SRI information and other physical channels are multiplexed by a physical channel multiplexer (704) and transmitted by a transmitting device (705).

As shown in Fig. 8, it is the equipment for the base station to receive CQI information and SRI information, wherein the CQI and SRI demultiplexer (803), the CQI information decoder (801), and the SRI information decoder (802) are embodiments of the present invention. First, the base station receives through the receiving device (805), demultiplexes the composite signal of CQI and SRI in the physical channel demultiplexer (804), and then demultiplexes the CQI signal by the CQI and SRI demultiplexer (803), And decode in CQI decoder (801) to obtain the CQI information that user equipment sends, next, base station demultiplexes SRI signal from CQI and SRI demultiplexer (803), and in SRI information decoder (802) The SRI information sent by the user equipment is obtained by decoding.

The device and method for multiplexing CQI and SRI described above in the present invention can also be used for multiplexing CQI and ACK/NACK, as long as the SRI in the above description is replaced with ACK/NACK. The ACK/NACK here can be single-bit ACK/NACK information, or multi-bit ACK/NACK information. For example, in the LTE system, when MCW MIMO is used to transmit data, the user equipment sends 2-bit ACK in the uplink /NACK information. In general, it is assumed that the number of modulation symbols in the physical resources allocated by the system for transmission of CQI and ACK/NACK is N, where the I branch and Q branch of K modulation symbols transmit CQI or ACK/NACK respectively, denoted as Modulation symbols s ₁ , s ₂ , ..., s _K , while the other NK modulation symbols are dedicated to transmitting CQI, denoted as modulation symbols s _K+1 , s _K+2 , ..., s _N . When the user equipment sends ACK or NACK, ACK or NACK is transmitted on the K branches of s ₁ , s ₂ , ..., s _K for ACK/NACK; s ₁ , s ₂ , ..., s _K K branches for CQI Branches and other NK modulation symbols are used to transmit CQI. When the user equipment does not send ACK or NACK, the power of K branches for ACK/NACK of s ₁ , s ₂ , ..., s _K is 0; s ₁ , s ₂ , ..., s _K The K branches for CQI and the other NK modulation symbols are used to transmit CQI, and the transmission power of the K branches for CQI of s ₁ , s ₂ , ..., s _K is increased, in particular, The transmit power of K branches for CQI of s ₁ , s ₂ , ..., s _K is twice the transmit power of each branch of the other NK modulation symbols.

In the actual communication system, there are such services, such as persistent scheduling (Persistent Scheduling) services, including VoIP services, interactive games and other real-time services, etc., and the period for the user equipment to report CQI information may be relatively long. Using the CQI channel to transmit SRI information may bring relatively long time delay. At the same time, under normal circumstances, the downlink data packets of the Persistent Scheduling service will not be transmitted using MCW MIMO (Multiple Codewords, Multiple-In Multiple-Out) technology, that is, the user equipment performing the Persistent Scheduling service only needs to send a single uplink ACK/NACK information each time. In this way, during the downlink data transmission of the Persistent Scheduling service, a method to increase the chance of SRI transmission and reduce the delay of the SRI channel is to send SRI information by multiplexing the uplink ACK/NACK channel. This method can be mixed with the method of multiplexing SRI and CQI.

It is worth noting that: the SRI information here generally refers to all control information related to occupying uplink resources. When the base station only uses the Persistent Scheduling method to semi-statically allocate resources for downlink resources, that is, when the user equipment does not semi-statically allocate uplink resources, SRI refers to uplink resource request indication information in a general sense. When the base station uses the Persistent Scheduling method to semi-statically allocate resources for downlink resources and uplink resources at the same time, SRI generally refers to control information related to occupying uplink resources, that is, a kind of generalized SRI information. For the uplink resources of the user equipment semi-statically allocated by the method of PersistentScheduling, when the user equipment does not need to transmit uplink data at certain moments, such as the uplink silent period (silent period) of the VoIP service, in order to improve the utilization of uplink resources, these uplink Resources can be allocated to other user equipments by means of dynamic scheduling. In this way, the user equipment needs to transmit certain uplink control information to indicate whether it currently needs to occupy the semi-statically configured uplink resources. Here, SRI generally refers to the uplink control information used to indicate whether the user equipment needs to occupy the uplink resource of its Persistent Scheduling. It may be information based on state transition, or the SRI is other forms of uplink control information.

Because the uplink ACK/NACK channel allocated by the system for the Persistent Scheduling service is generally configured semi-statically, the present invention proposes to expand the use of the uplink ACK/NACK channel, calling it a generalized uplink ACK/NACK channel. This generalized uplink ACK/NACK channel is semi-statically configured, and it is used to complete a variety of different functions according to whether the current user equipment has downlink data transmission and uplink data transmission. These functions include transmission of uplink ACK/NACK information, SRI information and others. Uplink control information, etc. The other uplink control information here may be the control information indicating the change of the uplink state of the persistent scheduling service, for example, the indication information indicating the conversion between the talk period (talkspurt) and the silent period (silent period) of the VoIP service, or indicating the uplink resources required by the user equipment Instructions for changes in number, etc. Note that the present invention does not limit the specific functions of other uplink control signaling here. When there is downlink data transmission but no uplink data transmission, this semi-statically configured generalized ACK/NACK channel transmits ACK/NACK information and SRI information at the same time. When there is both downlink data transmission and uplink data transmission, this semi-statically configured generalized ACK/NACK channel is used to transmit ACK/NACK information, or simultaneously transmit ACK/NACK information and SRI information, or simultaneously transmit ACK/NACK information and Other uplink control information. During the period when the user equipment does not transmit downlink data, the base station can recycle this semi-statically configured generalized ACK/NACK channel to transmit uplink control information of other user equipment; the base station can still use this semi-statically configured generalized ACK/NACK channel The /NACK channel is allocated to this user equipment until the base station receives the SRI information of the user equipment and starts uplink data transmission, and then the base station can reclaim this channel; the base station can also still allocate this semi-statically configured generalized ACK/NACK channel to this user equipment until the base station explicitly releases the channel through control signaling. In this way, according to the manner in which the base station allocates generalized ACK/NACK channels, it is determined whether the following two situations will occur. When there is no downlink data transmission and no uplink data transmission, this semi-statically configured generalized ACK/NACK channel is dedicated to transmitting SRI information, or simultaneously transmitting SRI information and other uplink control information. When there is uplink data transmission but no downlink data transmission, the user equipment can use this generalized ACK/NACK channel to transmit SRI information and/or some other uplink control information. Because the base station actually controls the transmission of downlink data to the user equipment, the base station can accurately know the uplink control information that the user equipment may send at a specific timing, that is, the base station knows when it should detect ACK/NACK information and SRI information at the same time , and at what point it only needs to detect SRI information. It is worth noting that the system can configure the user equipment to multiplex some or all resources of the generalized ACK/NACK channel to transmit uplink control information such as SRI, that is, one configuration method is that the system configures all time-frequency resources of the generalized ACK/NACK channel. Transmission of uplink control information such as SRI; another configuration method is that the system configures time-frequency resources of some generalized ACK/NACK channels satisfying a specific timing relationship to transmit uplink control information such as SRI. The system can configure SRI and other uplink control information to be repeatedly transmitted on multiple generalized uplink ACK/NACK channels, so that the base station can combine and receive the signals on these generalized ACK/NACK channels, thereby improving its transmission performance. When a variety of uplink control information including SRI needs to be multiplexed into the generalized uplink ACK/NACK channel together with the uplink ACK/NACK information, these uplink control information can be multiplexed in a manner similar to TDM, that is, each type of uplink control information is separately The time-frequency resources of the generalized ACK/NACK channel are multiplexed according to different timing relationships. When there is no need to send uplink ACK/NACK information, the SRI information can monopolize the generalized uplink ACK/NACK channel, or can multiplex the generalized uplink ACK/NACK channel together with other uplink control signaling.

According to whether the current user equipment has downlink data transmission and uplink data transmission, when the user equipment can only send one type of uplink control signaling, then this uplink control signaling occupies the generalized ACK/NACK channel alone; when the user equipment may send When there are two types of uplink control signaling, the two types of uplink control signaling are multiplexed on this generalized ACK/NACK channel. The following describes the multiplexing method for simultaneous transmission of uplink ACK/NACK and SRI information by the user equipment. The method is also used for multiplexing uplink ACK/NACK information and other uplink control information. Assume that the number of modulation symbols in the physical resource allocated by the system for the uplink ACK/NACK channel of the Persistent Scheduling service is N, denoted as s ₁ , s ₂ , ..., s _N . Note: When the uplink ACK/NACK information is multiplied by the orthogonal sequence F of length N and then mapped to the physical layer transmission, the modulation symbol here is defined as the symbol before multiplying the orthogonal sequence F, that is, the uplink ACK/NACK The NACK information is repeated N times to obtain N symbols. For example, for the uplink control channel in the LTE system, the number of SCFDMA symbols used to transmit ACK/NACK information is N, and the system can configure the user equipment to multiply its ACK/NACK information by N orthogonal sequences F After that, each multiplied value is transmitted in each SCFDMA symbol in turn, where the orthogonal sequence with a length of N can be a Walsh sequence, a sequence in a Fourier transform matrix, or a CAZAC sequence. According to the above definition of modulation symbols, each modulation symbol adopts a manner similar to quadrature amplitude modulation (QAM), such as QPSK modulation, that is, each modulation symbol has two branches, I and Q.

The present invention proposes that when multiplexing SRI information and uplink ACK/NACK information, the uplink ACK/NACK information occupies one branch (I or Q) of each modulation symbol in the N modulation symbols for transmission, while the N modulation symbols The other branch (Q or I) of each modulation symbol in the symbol is used to convey SRI information. It is worth noting that when the user equipment only needs to send SRI, one method is to occupy the same N branches as when multiplexing SRI and ACK/NACK to transmit SRI information; another method is to design SRI in these N modulation A new way of sending on symbols.

Similar to the above method of multiplexing CQI and SRI, the present invention uses an OOK-like modulation technique to send SRI information. Specifically, when the user equipment sends SRI, the branches used for SRI of these N modulation symbols transmit SRI information, that is, the transmit power of these branches used for SRI is greater than 0. One method is to configure s ₁ , s ₂ ,...,s The transmission power of the I and Q branches of _K is equal; another method is to set the transmission power of each branch according to the performance requirements of ACK/NACK and SRI. At this time, for ACK/NACK The transmit power of the branch for NACK and the transmit power of the branch for SRI may not be equal. When the user equipment does not send SRI, the power of the branches used for SRI of the N modulation symbols is 0. Similar to the above method of multiplexing CQI and SRI, the present invention uses coherent demodulation for uplink ACK/NACK information and SRI information. For SRI transmission, the user equipment can only transmit 1 bit information, that is, indicate whether to send SRI ; The user equipment may also send 1 more bit of information on the basis of indicating whether it has sent the SRI.

When transmitting SRI information on the SRI branches of the N modulation symbols, the first method is that the user equipment repeats the SRI information N times and then maps it to the N modulation symbols. Because the uplink ACK/NACK information is also repeated N times and mapped to the N modulation symbols, when the N modulation symbols are multiplied by the orthogonal sequence F of length N and then mapped to the physical layer transmission, it is equivalent to SRI and ACK/NACK share the same orthogonal sequence F. The second method is that the user equipment multiplies the SRI information with a sequence S of length N, and then maps it to N modulation symbols. When the sequence S is not a sequence of all 1s, this is equivalent to using different orthogonal sequences for SRI and ACK/NACK. In this way, when the N modulation symbols are multiplied by the orthogonal sequence F of length N and then mapped to the physical layer transmission, ACK/NACK is processed with the orthogonal sequence F, and SRI is the product sequence of the sequence S and the sequence F deal with. Reasonable selection of sequence S can ensure that the product sequence of sequence S and sequence F is orthogonal to sequence F. For the second method, according to the structure of the uplink control channel of the LTE system as shown in Figure 3, the N modulation symbols are evenly distributed to two different frequencies, and the number of modulation symbols on each frequency is respectively is "K/2" and "K/2", the user equipment can multiply the SRI information with the sequence of length "K/2" and "K/2", and then map to the "K/2" of the corresponding frequency ” and “K/2” modulation symbols.

In the present invention, the physical resources occupied by ACK/NACK and SRI are completely separated, so the base station can detect SRI and ACK/NACK information completely independently. The base station receives the uplink signal including ACK/NACK and SRI from the user equipment, and performs coherent detection on the ACK/NACK and SRI signal according to the reference signal therein, so as to obtain N modulation symbols including ACK/NACK and SRI. Note: The definition of the modulation symbol here is different from the definition when the user equipment sends ACK/NACK and SRI. The modulation symbol here is defined as N after multiplying the ACK/NACK and SRI information by the orthogonal sequence F of length N symbols. When the base station receives ACK/NACK information, it does not need to care whether the user equipment has sent SRI information. When the ACK/NACK and SRI information are directly transmitted on the N modulation symbols after N repetitions, the base station directly modulates on the N modulation symbols. The ACK/NACK signal is extracted and summed on the branch used for ACK/NACK of the symbol, so as to obtain the ACK/NACK information sent by the user equipment; when the ACK/NACK and SRI information are multiplied by the orthogonal sequence F of length N When mapping to the N modulation symbols for transmission, the base station multiplies the N modulation symbols by the conjugate sequence of the orthogonal sequence F and sums them up, so as to obtain the ACK/NACK information sent by the user equipment.

The first method for the base station to receive SRI information is that the base station does not need to care about the ACK/NACK information sent by the user equipment. When the SRI and ACK/NACK information is directly transmitted on the N modulation symbols after N repetitions, the base station directly The SRI signal is extracted from the SRI branch of the N modulation symbols and summed to obtain the SRI information sent by the user equipment; when the SRI and ACK/NACK information are multiplied by an orthogonal sequence F of length N, they are mapped to When the N modulation symbols are transmitted, the base station multiplies the N modulation symbols by the conjugate sequence of the orthogonal sequence F and sums them up, so as to obtain the SRI information sent by the user equipment.

The second method for the base station to receive SRI information is to first receive the ACK/NACK signal, and then perform interference cancellation on the uplink signal received from the user equipment based on the demodulated ACK/NACK information, thereby removing the influence of the ACK/NACK signal , and then the base station continues to detect SRI information according to the first method for receiving SRI.

It is worth noting that the above method of multiplexing the SRI information with the uplink ACK/NACK information of the user equipment can also be applied to the base station to perform dynamic resource allocation for the user equipment as long as the downlink data transmission of the user equipment does not use MCW MIMO technology Case. It is worth noting that the present invention proposes that uplink control information such as SRI and uplink ACK/NACK information respectively occupy one branch (I or Q) of each modulation symbol in N modulation symbols for transmission, and proposes that when information such as SRI is When using OOK modulation, the method of sending and receiving information such as SRI. However, the present invention does not limit that information such as SRI must use OOK modulation technology, and bipolar modulation can also be used, that is, positive and negative polarities are used to represent two possible states of SRI information respectively.

As shown in Figure 9, it is a device for user equipment to multiplex ACK/NACK information and SRI information, wherein ACK/NACK information encoder (901), SRI information encoder (902), ACK/NACK and SRI multiplexer (903) It is the embodiment of the present invention. First, the user equipment encodes its ACK/NACK information in an ACK/NACK information encoder (901), while the user equipment encodes SRI information in an SRI information encoder (902). Then the user equipment multiplexes the coded ACK/NACK and SRI in the multiplexer (903). Next, the multiplexed ACK/NACK and SRI information and other physical channels are multiplexed by a physical channel multiplexer (904) and transmitted by a transmitting device (905).

As shown in Figure 10, it is a device for the base station to receive ACK/NACK information and SRI information, wherein ACK/NACK and SRI demultiplexer (1003), ACK/NACK information decoder (1001), and SRI information decoder (1002) are Embodiment of the present invention. First, the base station receives through the receiving device (1005), demultiplexes the composite signal of ACK/NACK and SRI in the physical channel demultiplexer (1004), and then demultiplexes the ACK/NACK and SRI demultiplexer (1003) output the ACK/NACK signal, and decode it in the ACK/NACK decoder (1001) to obtain the ACK/NACK information sent by the user equipment, and then, the base station demultiplexes the SRI from the ACK/NACK and SRI demultiplexer (1003) signal, and decode it in the SRI information decoder (1002) to obtain the SRI information sent by the user equipment.

The method described below can enhance the performance of upper control signaling (CQI, ACK/NACK, SRI, etc.) by averaging interference from multiple cells through interference.

According to the current discussion results in LTE, in the same cell, when sending uplink control signaling, user equipment preferentially uses a set of sequences generated by different cyclic shifts of the same basic CAZAC sequence. Due to the limitation of the propagation delay of the wireless channel, the number of available cyclic shift values of a basic CAZAC sequence is limited, so on the one hand, in the same cell, according to the load of the uplink control signaling, the system can configure Different base station CAZAC sequences are used; on the other hand, different basic CAZAC sequences are used in different cells configured by the system. However, the number of basic CAZAC sequences available is limited by their sequence length. Note that the length of the CAZAC sequence is L, then the number of basic CAZAC sequences depends on the number of numbers that are relatively prime to L between 1 and L-1. According to the resource allocation mode of the uplink control channel shown in FIG. 3 , the uplink control signaling is transmitted in the resources at both ends of the frequency band. According to the current LTE discussion results, the resource for transmitting uplink control signaling is one or more resource blocks, that is, the length of the CAZAC sequence is 12 or its multiple. In addition, the current LTE also discusses the case that the length of the CAZAC sequence is 18. Taking the CAZAC sequence length of 12 as an example, in the current discussion, there are several ways to generate a CAZAC sequence of length 12 as follows. The first method is to directly generate a CAZAC sequence of length 12, because between 1 and 11 is mutually The number of prime numbers is only 4, and the number of basic CAZAC sequences available at this time is 4. The second method is to first generate a CAZAC sequence of length 13, because 13 is a prime number, so there are 12 such sequences, and then the CAZAC sequence of length 13 is truncated to obtain a sequence of length 12. The third method is to first generate a CAZAC sequence of length 11, because 11 is a prime number, so there are 10 such sequences, and then the CAZAC sequence of length 11 is cyclically extended to obtain a sequence of length 12.

According to the above discussion, the number of basic CAZAC sequences available in the LTE system is relatively small, which imposes strict restrictions on cell planning, because if two cells are configured with the same CAZAC sequence, and the distance between the two cells is relatively small At this time, the signals of the two cells interfere with each other. The present invention proposes that a cell changes its configured CAZAC sequence at different times, and repeats its configured CAZAC sequence according to a certain cycle. Here, each CAZAC sequence allocated in time order within a change cycle is called a CAZAC sequence According to the load of the uplink control signaling, one or more CAZAC sequence change patterns can be configured in the same cell; at the same time, other cells near a cell are configured with CAZAC sequences of different change patterns, thereby randomizing the Interference between.

Here, the period of the CAZAC sequence change pattern may be one or more TTIs, or one radio frame. Specifically, the first method of defining a CAZAC sequence change pattern is to configure the CAZAC sequence of a cell to change with slots within a period. The second method of defining the CAZAC sequence change pattern is to configure the CAZAC sequence of a cell to change with the change of the SCFDMA symbol within one period. For the first method, when the change period is one TTI, according to the LTE uplink frame structure, each TTI contains two time slots, and the number of available CAZAC sequences is N, if two time slots in one period If the same CAZAC sequence cannot be used, there are N(N-1) variations of all possible CAZAC sequences; if the same CAZAC sequence is allowed to be used in two time slots within a period, then all possible CAZAC sequence variations There are N ² kinds of patterns in total. That is, according to the uplink control channel structure shown in Figure 3, the uplink control signaling occupies two time slots on different frequencies for transmission within one TTI, and the CAZAC sequences used in these two time slots follow a certain change pattern configured. For the first method, when the change period is a wireless frame, according to the LTE uplink frame structure, each frame contains 20 time slots, and the system guarantees that the change pattern of the CAZAC sequence with a length of 20 has good interference average effect.

In the method of the present invention, the first method of configuring one or more CAZAC sequence change patterns adopted by a cell is to send the configuration information through a broadcast channel (BCH). The second method is to define the mapping relationship between the CAZAC sequence change pattern and the cell ID (Cell ID) or the cell group ID (Cell Group ID). The second method is to define the mapping relationship between the CAZAC sequence change pattern and the primary synchronization channel (P-SCH), secondary synchronization channel (S-SCH), and the orthogonal codeword of the downlink common reference signal.

As shown in FIG. 11 , it is a device for user equipment to send uplink control signaling, wherein the CAZAC sequence number controller (701) and the CAZAC sequence generator (702) are embodiments of the present invention. The user equipment receives and obtains the information of the CAZAC sequence change pattern according to other information from the broadcast channel, and then in the CAZAC sequence number controller (1101), the user equipment generates the sequence number of the CAZAC sequence of each specific time slot or SCFDMA symbol, and then uses this The sequence number controls the CAZAC sequence generator (1102) to generate the corresponding CAZAC sequence, thereby generating its control signaling in the uplink control signaling generator (1103), and then multiplexing it through the physical channel multiplexer (1104), and passing it through the transmitting device (1105) Launch.

As shown in FIG. 12 , it is the equipment for the base station to receive the uplink control signaling, wherein the CAZAC sequence number controller (1201) and the CAZAC sequence generator (1202) are the embodiment of the present invention. On the one hand, the base station demultiplexes the uplink control signaling of the user equipment in the physical channel demultiplexer (1204) via the receiving device (1205). On the other hand, the base station generates the sequence number of the CAZAC sequence of each specific time slot or SCFDMA symbol in the CAZAC sequence number controller (1121) according to the CAZAC sequence change pattern of its configuration, and then controls the CAZAC sequence generator (1202) with this sequence number ) to generate the corresponding CAZAC sequence. Therefore, the base station parses the uplink control signaling parser (1203) to obtain its control signaling.

Example

This section presents three embodiments of the invention. In order to avoid making the description of this patent too lengthy, in the following description, detailed descriptions of functions or devices that are well known to the public are omitted.

first embodiment

This embodiment corresponds to a method of multiplexing CQI information and SRI information. According to the definition of the uplink wireless frame structure in the current LTE system, each time slot contains 7 SCFDMA symbols, and according to the structure of the uplink control channel shown in Figure 3, the uplink control signaling is distributed to two time slots on different frequencies internal transmission. It is assumed here that one SCFDMA symbol is used for transmitting uplink reference signals in each time slot, and the present invention does not limit the number of SCFDMA symbols used for reference signals in each time slot.

As shown in Figure 13, because there are 14 SCFDMA symbols in one TTI, 2 of which are used as uplink reference signals, so there are still 12 SCFDMA symbols used to transmit uplink control information. Since each SCFDMA symbol can transmit one modulation symbol, the number of available modulation symbols is N=12. Because each modulation symbol can be divided into two branches, an I branch and a Q branch, one branch of one modulation symbol is defined as a unit of resource allocation, and here there are 24 units of resources in total.

As shown in FIG. 13 , it is assumed that 4 units of resources are used to transmit SRI, and the remaining 20 units of resources are used to transmit CQI. Here, in order to share the transmit power of modulation symbols between SRI and CQI, the resources of 4 units used for SRI are distributed to 4 different SCFDMA symbols, which are SCFDMA symbols #6 to #9 in the figure. Without affecting the generality, it is assumed here that within the 4 modulation symbols multiplexed by SRI and CQI, SRI occupies the Q branch for transmission and CQI occupies the I branch for transmission. In order to ensure that SRI transmission has the best frequency diversity effect, the 4 modulation symbols used for SRI in Figure 13 are divided into two equal parts, and are transmitted in two time slots of different frequencies respectively, that is, two of the modulation symbols are at the upper end of the frequency band The SCFDMA symbols #6 and #7 are transmitted in the time slot of the frequency band; the other two modulation symbols are transmitted in the SCFDMA symbols #8 and #9 in the time slot at the lower end of the frequency band.

When the user equipment needs to send SRI information, within the 4 modulation symbols multiplexed by SRI and CQI, the transmit power of the I branch is equal to the transmit power of the Q branch, and the generation power is equal to the other 8 modulation symbols dedicated to CQI The power of , that is, the square values of C ₁ -C ₂₀ and R ₁ -R ₄ in Fig. 13 are equal. When the user equipment does not need to send SRI information, because SRI adopts OOK modulation, within the 4 modulation symbols multiplexed by SRI and CQI, the transmit power of the Q branch is 0, and the transmit power saved on these Q branches is used to improve the I The transmit power of the branches, such that the transmit power of the I branch of the 4 modulation symbols multiplexed by SRI and CQI is twice the transmit power of each branch of the other 8 modulation symbols dedicated to CQI, that is, Fig. 13 The value of R ₁ to R ₄ in the above is 0, and the square value of C ₁ to C ₁₆ is twice the square value of C ₁₇ to C ₂₀ .

second embodiment

This embodiment corresponds to multiplexing a generalized uplink ACK/NACK channel to transmit information such as uplink ACK/NACK and SRI. It is assumed here that a data packet needs to be transmitted every 20ms, and the HARQ retransmission interval is assumed to be 5ms, so that a maximum of 3 retransmissions can be allowed between two initial data transmissions.

As shown in Figure 14, it is a schematic diagram of the base station sending downlink data and the user equipment sending uplink ACK/NACK and SRI. Here, it is assumed that the base station transmits two data packets in the downlink direction, and it is assumed that when sending the first data packet, after one retransmission After the transmission is successful; and when sending the second data packet, only one data transmission is successful. Correspondingly, for the first data packet, the user equipment needs to send ACK/NACK information twice, that is, send NACK for the first time and send ACK for the second time; for the second data packet, the user equipment only needs to send ACK once. As shown in Figure 14, in the uplink direction, when the transmission of downlink data satisfies a specific timing relationship, user data sends uplink ACK/NACK information. Here, the user equipment only needs to send its ACK/NACK information at three specific times. As for SRI information, because SRI is an unpredictable information, that is, it is possible to transmit SRI information at all eight timing positions in FIG. 14 . In the three specific positions where the ACK/NACK information is sent, the ACK/NACK information and the SRI information use the IQ multiplexing method described in the present invention; while for the other five positions, the SRI exclusively enjoys the generalized uplink ACK/NACK channel, In order to keep the consistency of the transmission method, at this time, the SRI information can still be transmitted on the same branch as the ACK/NACK multiplexing.

As shown in FIG. 15 , it is assumed that after the base station completes the downlink data transmission, the generalized ACK/NACK channel is still allocated to the user equipment. In this example, it is not limited whether the generalized ACK/NACK channel is still allocated to the user equipment after the base station receives the uplink SRI, specific SR information and uplink data from the user equipment. As shown in Figure 15, after the base station completes the downlink data transmission, it no longer sends data to the user equipment in the downlink direction, but the generalized ACK/NACK channel is not recycled, but is still allocated to the user equipment. In this case, the user equipment does not need to send ACK/NACK in the uplink direction, so this generalized ACK/NACK channel is actually dedicated to sending SRI information. As shown in FIG. 15 , when the user equipment has a demand for uplink data transmission, the user equipment uses its generalized ACK/NACK channel to send SRI information. Here, the SRI may only indicate that it needs to send SR and uplink data, or may send one more bit of information on the basis of indicating this requirement. After receiving the SRI information of the user equipment, the base station allocates uplink resources for the user equipment and sends uplink resource allocation control signaling. After receiving the control signaling, the user equipment sends an SR message on the resources allocated to it, and at the same time, the user equipment can also send a part of uplink data.

As shown in FIG. 16 , it is assumed that during the downlink data transmission process of the base station, the user equipment needs to send SR information and uplink data. For the drawing method here, it is assumed that the corresponding uplink resource allocation signaling of the base station and the downlink data for this user equipment are generated at different timings, and in fact they can also be sent at the same time; correspondingly, in Figure 16, broadly defined The timing of the ACK/NACK channel is different from SR and uplink data, and they may also be sent at the same time. As shown in FIG. 16 , the user equipment needs to send SR information and uplink data before sending the ACK/NACK information of the second data packet to the base station, so that the user equipment installs the method of the present invention to send its ACK/NACK information and The SRI information is multiplexed and sent together in the generalized ACK/NACK channel. Here, the SRI may only indicate that the SR and uplink data need to be sent, or one more bit of information may be sent on the basis of only this requirement. After the base station receives the ACK/NACK information and SRI information of the user equipment, on the one hand, the base station continues to retransmit downlink data or send new downlink data; on the other hand, the base station allocates uplink resources for the user equipment and sends an uplink resource allocation control signal make. Next, the user equipment simultaneously receives the downlink data from the base station and detects the uplink resource allocation control signaling sent by the base station. After the user equipment receives the uplink resource allocation signaling, the user equipment continues to send ACK on its generalized ACK/NACK channel. /NACK information, on the other hand, the user equipment sends an SR message on the resources allocated to it at a specific timing, and at the same time, the user equipment can also send a part of uplink data.

third embodiment

This embodiment corresponds to setting different CAZAC sequence change patterns for cells, so as to perform interference averaging on uplink control signaling. It is assumed here that the CAZAC sequence configured by the system for uplink control signaling changes with time slots, and the change period is one TTI, that is, two time slots.

Fig. 17 is a schematic diagram of changing patterns of different CAZAC sequences set for each cell in the present invention. Because the number of CAZAC sequences available in the system is limited, the CAZAC sequences have to be reused in cells that are not too far apart. As shown in Fig. 17, the configuration of CAZAC sequence change patterns of three cells is taken as an example here, and the CAZAC sequence change patterns of these three cells are [1, 2], [1, 3] and [4, 2] respectively. The CAZAC sequences used in the first time slot of the first cell and the second cell are the same, so the uplink control signaling of the two cells will interfere with each other in the first time slot. Using the method of configuring different CAZAC sequence change patterns proposed by the present invention, the CAZAC sequences used by the two cells in the second time slot are different, so the uplink control signaling of the two cells is in the second time slot The mutual interference is very small. Similarly, the CAZAC sequences used in the first time slot of the first cell and the third cell are different, so the uplink control signaling of the two cells interferes little with each other in the first time slot ; However, the CAZAC sequences used in the second time slots of the two cells are the same, so the uplink control signaling of the two cells will interfere with each other in the second time slots. In this way, because the uplink control signaling is transmitted within one TTI, and the interference on the two time slots is combined, the interference of the first cell comes from multiple cells instead of only from a certain cell, and the interference is averaged. Therefore, the performance of uplink control signaling transmission is improved.

Fourth embodiment

This embodiment corresponds to multiplexing a generalized uplink ACK/NACK channel to transmit information such as uplink ACK/NACK and SRI. It is assumed here that the base station performs persistent scheduling on the uplink resources and downlink resources of the user equipment at the same time, and the user equipment indicates whether it needs to occupy the allocated uplink resources by sending a release request in the uplink direction, that is, in this embodiment, SRI stands for release request information. Assuming that a new data packet needs to be transmitted every 20ms, and assuming that the HARQ retransmission interval is 5ms, a maximum of 3 retransmissions can be allowed between two initial data transmissions, that is, the generalized ACK/NACK channel is allocated within 20ms resources 4 times. Because there is a new data packet every 20ms in the uplink direction, the release request information SRI needs to be sent every 20ms. The user equipment can multiplex one of the 4 generalized ACK/NACK channels within 20ms to transmit SRI; or the user equipment can multiplex K of the 4 generalized ACK/NACK channels within 20ms (1<K<4) channels to repeatedly transmit SRIs, and the base station combines and receives the K SRIs, thereby improving the reliability of SRI transmission. In this embodiment, it is assumed that the user equipment multiplexes one of the four generalized ACK/NACK channels within 20 ms to transmit SRI. The resources of the other three channels in the four generalized ACK/NACK channels are allocated to other user equipments. In this implementation, the modulation method used by the user equipment to send SRI is not limited. If the system configures the user equipment to use OOK modulation to send SRI information, the transmission power of the release request SRI is greater than 0, indicating that it releases the allocated uplink resources. The transmission of SRI Power equal to 0 means that it does not release allocated uplink resources. If the system configures the user equipment to use bipolar modulation to send SRI information, one polarity of the release request SRI indicates that it releases the allocated uplink resources, and the other polarity of the release request SRI indicates that it does not release the allocated uplink resources. For the drawing method here, it is assumed that the sending time of the generalized ACK/NACK channel and the uplink data channel are different, but in fact they can also be sent at the same time. Here, in order to highlight the operation of the user equipment to multiplex the generalized ACK/NACK channel to transmit ACK/NACK information and SRI information, when the user equipment sends uplink data, this embodiment does not show the HARQ operation on the uplink data.

As shown in FIG. 18 , it is assumed that during the period when the base station transmits downlink data, the user equipment has no uplink data, but at a certain time after the base station completes the downlink data transmission, the user equipment starts to have uplink data to transmit. It is assumed here that after the base station completes the downlink data transmission, the generalized uplink ACK/NACK channel is still allocated to the user equipment and used to transmit SRI information. In FIG. 18, the base station allocates downlink resources (1814-1817) for the user equipment based on persistent scheduling. The downlink resources (1814 and 1815) are actually used to send downlink data packets. The present invention does not limit whether the base station can allocate other downlink resources (1816 and 1815) 1817) dynamically allocate to other user equipments. In FIG. 18 , the base station allocates uplink resources (1811-1813) to the user equipment based on persistent scheduling, where the uplink resources (1812 and 1813) are actually used to transmit uplink data, while the uplink resources (1811) are not used to transmit uplink data. In Fig. 18, the generalized ACK/NACK channel (1801) multiplexes ACK/NACK information and SRI information; the generalized ACK/NACK channel (1802) is only used to transmit ACK/NACK information; the generalized ACK/NACK channel (1805 and 1809) Dedicated to sending SRI messages. The present invention does not limit whether the base station can dynamically allocate resources of other generalized ACK/NACK channels (1803, 1804, 1806-1808, and 1810) to other user equipments.

As shown in FIG. 18, the base station sends a downlink data packet (1814), and the user equipment receives the downlink data packet (1814). Then, on the one hand, the user equipment needs to send uplink ACK/NACK information (here, NACK), and on the other hand, because the user equipment does not need to send uplink data, the user equipment sends SRI information to instruct it to release uplink data channel resources (1811), Here, the user equipment multiplexes ACK/NACK information and SRI information on the generalized ACK/NACK channel (1801) according to the method of the present invention for transmission. The base station detects the ACK/NACK information and SRI information of the user equipment. On the one hand, the base station receives the NACK and retransmits the downlink data packet (1815); on the other hand, the base station receives the SRI information and knows that the user equipment does not need to send uplink data, so The base station can dynamically allocate the uplink data channel resources (1811) of this user equipment to other user equipments. After receiving the data packet (1815) from the base station, the user equipment sends ACK/NACK information (here ACK) on the generalized ACK/NACK channel (1802). Note that because it is assumed that one of every four generalized ACK/NACK channels is used for transmission SRI, the ACK/NACK information here is not multiplexed with the SRI information. Then, because the user equipment has sent a release request SRI, the user equipment does not send data on its uplink data channel resources (1811). The base station receives the generalized ACK/NACK channel (1802) and detects that the user equipment has sent an ACK, so the base station does not continue to retransmit the downlink data packet for this user equipment on the downlink resources (1816 and 1817).

As shown in Figure 18, at a certain time after the base station completes the downlink data transmission, the user equipment starts to send uplink data, and at this time the generalized ACK/NACK channel is dedicated to sending SRI information. Since the user equipment needs to transmit uplink data, the user equipment sends SRI information on the corresponding generalized ACK/NACK channel (1805) to indicate that it does not release the uplink data resources (1812). The base station receives the SRI information of the user equipment on the generalized ACK/NACK channel (1805), thus knowing that the user equipment needs to send uplink data, so the base station will not dynamically allocate the uplink resource (1812) of the user equipment to other user equipment. Next, the user equipment sends its uplink data on its uplink resource (1812), and the base station receives the uplink data on its uplink resource (1812). Next, similar to the above operation, the user equipment sends SRI information on the generalized ACK/NACK channel (1809), indicating that uplink data needs to be sent at present, and the base station receives the SRI information of the user equipment on the generalized ACK/NACK channel (1809) After that, the uplink resources (1813) of this user equipment will not be dynamically allocated to other user equipments. Next, the user equipment sends its uplink data on its uplink resource (1813), and the base station receives the uplink data on its uplink resource (1813).

As shown in FIG. 19 , it is assumed here that during the period when the base station transmits downlink data, the user equipment has uplink data to transmit. In Figure 19, the base station allocates downlink resources (1916-1927) for the user equipment based on persistent scheduling, and the downlink resources (1916, 1917, 1920, and 1924-1926) are actually used to send downlink data packets. The present invention does not limit whether the base station can use Other downlink resources (1918, 1919, 1921-1923 and 1927) are dynamically allocated to other user equipments. In FIG. 19, the base station allocates uplink resources (1913-1915) to the user equipment based on persistent scheduling, wherein the uplink resources (1914 and 1915) are actually used to transmit uplink data, while the uplink resources (1913) are not used to transmit uplink data. In Fig. 19, generalized ACK/NACK channels (1901, 1905 and 1909) multiplex ACK/NACK information and SRI information; generalized ACK/NACK channels (1902, 1910 and 1911) are only used to transmit ACK/NACK information. The present invention does not limit whether the base station can dynamically allocate resources of other generalized ACK/NACK channels (1903, 1904, 1906-1908 and 1912) to other user equipments. As shown in FIG. 19, the base station sends a downlink data packet (1916), and the user equipment multiplexes uplink ACK/NACK information and SRI information on the generalized uplink ACK/NACK channel (1901). The processing method and interaction flow are the same as those in FIG. 18 in the same. Next, the base station sends a downlink data packet (1920), and the user equipment receives the downlink data packet (1920). Then, on the one hand, the user equipment needs to send uplink ACK/NACK information (here, ACK), and on the other hand, because the user equipment needs to send uplink data, the user equipment sends SRI information to indicate that it does not release the uplink data resources (1914), where the user equipment The device multiplexes ACK/NACK information and SRI information on a generalized ACK/NACK channel (1905) for transmission according to the method of the present invention. The base station detects the ACK/NACK information and SRI information of the user equipment. On the one hand, the base station does not retransmit the downlink data packet on the downlink resources (1921~1923) after receiving the ACK; on the other hand, the base station receives the SRI information and knows that the user equipment needs Send uplink data, so the base station will not dynamically allocate uplink resources (1914) to other user equipments. Next, the user equipment sends its uplink data on its uplink resource (1914), and the base station receives the uplink data on its uplink resource (1914). Next, similar to the above operations, the base station transmits downlink data (1924), the user equipment receives the downlink data (1924), and then the user equipment multiplexes ACK/NACK information (here NACK) on the generalized ACK/NACK channel (1909) and SRI information, indicating that uplink data needs to be sent at present, the base station receives the ACK/NACK information and SRI information on the generalized ACK/NACK channel (1809), retransmits the downlink data of the user equipment (1925), and does not transfer the user equipment's Uplink resources (1915) are dynamically allocated to other user equipments. Next, the user equipment sends ACK/NACK information (here NACK) on the generalized ACK/NACK channel (1910), and sends its uplink data on its uplink resources (1915). The base station receives the ACK/NACK information on the generalized ACK/NACK channel (1910), thereby retransmitting the downlink data of the user equipment (1926), and the base station receives the uplink data on the uplink resource (1915). The user equipment receives downlink data (1926), and sends ACK on the generalized ACK/NACK channel (1911), and the base station does not retransmit the data packet after receiving the ACK (1927).

Claims (55)

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 subscriber equipment does not send SRI, and 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 ₂..., 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 Group ID) 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.

53. the method for multiplexing ACK/NACK of subscriber equipment and CQI comprises the steps:

A) to the resource of the N that is used for transferring ACK/NACK and the CQI modulation symbol of system assignment, subscriber equipment transmits CQI or ACK/NACK respectively at the I of K modulation symbol branch road and Q branch road, and other N-K modulation symbol is exclusively used in transmission CQI, and K the modulation symbol of the ACK/NACK of note transmission here is s ₁, s ₂..., s _K

B) when subscriber equipment sends ACK/NACK, modulation symbol s ₁, s ₂..., s _KThe branch road emission ACK/NACK that is used for ACK/NACK; When subscriber equipment does not send ACK/NACK, modulation symbol s ₁, s ₂..., s _KThe power of the branch road that is used for ACK/NACK 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 ACK/NACK.

54. method according to claim 1 is characterized in that in step b), when subscriber equipment sends ACK/NACK, 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.

55. method according to claim 1 is characterized in that in step b), when subscriber equipment does not send ACK/NACK, and 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.

Images