CN101610097B

CN101610097B - Blind detection receiving/sending method and blind detection receiving/sending equipment in time division-synchronous code division multiple access system

Info

Publication number: CN101610097B
Application number: CN2008100435116A
Authority: CN
Inventors: 师延山; 周加铳; 石璟
Original assignee: Spreadtrum Communications Shanghai Co Ltd
Current assignee: Spreadtrum Communications Shanghai Co Ltd
Priority date: 2008-06-16
Filing date: 2008-06-16
Publication date: 2012-12-12
Anticipated expiration: 2028-06-16
Also published as: CN101610097A

Abstract

The invention relates to a time division-synchronous code division multiple access system (TD-SCDMA), and discloses a blind detection receiving/sending method and blind detection receiving/sending equipment in the time division-synchronous code division multiple access system. The method and the equipment can alleviate or avoid delayed send of service data caused by discontinuous blind detection. In the method, a network sends data needing blind detection to user equipment in a first blind detection mode, wherein a blind detection resource in the first blind detection mode is distributed discontinuously by taking a specific cycle as a unit; if a first preset condition is met, the network sends the data needing blind detection to the user equipment in a second blind detection mode, wherein a blind detection resource in the second blind detection mode comprises blind detection resources except the first blind detection mode; and under the state that the data needing blind detection is sent to the user equipment in a second blind detection mode, if a second preset condition is met, the data is recovered into the data needing blind detection which is sent to the user equipment in the first blind detection mode.

Description

Blind detection transceiving method and device in time division synchronous code division multiple access system

Technical Field

The invention relates to a time division synchronous code division multiple access system, in particular to a blind detection technology for high-speed downlink packet access in the time division synchronous code division multiple access system.

Background

With the continuous development of communication technology and the increasing requirements of users on quality of service, the data transmission rate up to 2M bit/s defined by the 3rd Generation Partnership Project (3 GPP) standard before Release version 4 has become increasingly unable to meet the requirements of users on high-speed data services. In this case, 3GPP introduces a High Speed Downlink Packet Access (HSDPA) technology in the Release 5 specification.

HSDPA is an enhancement proposed by 3GPP Release 5, and mainly aims to support packet data Service at high speed, and obtain lower time delay, higher system throughput, and more powerful Quality of Service (QoS) guarantee. From the technical point of view, the HSDPA enhances an air interface by introducing a High Speed Downlink shared channel (HS-DSCH for short), and enhances a corresponding functional entity in a universal mobile telecommunications system Terrestrial Radio Access Network (UTRAN for short). From the bottom layer, a Hybrid Adaptive Repeat Request (HARQ) and an Adaptive Modulation and Coding (AMC) technology are mainly introduced to increase the data throughput.

In an HARQ system, a Forward Error Correction (FEC) subsystem is introduced into an Automatic Repeat Request (ARQ) system to correct frequently occurring Error patterns to reduce retransmission times, that is, errors are automatically corrected within an Error Correction capability range, and a transmitting end is required to retransmit data if the Error Correction range is exceeded, which increases the reliability and transmission efficiency of the system. That is, H-ARQ is able to automatically adapt to instantaneous channel conditions to provide fine data rate adjustments. The AMC technology allows the system to adaptively adjust the modulation and coding scheme according to the change of the channel quality within a limited range. In an AMC system, users with better channel conditions (usually those users close to the base station) in favorable positions are assigned higher-order modulation schemes and higher-rate coding schemes (such as 16QAM and 1/2Turbo coding rate); those users with poor channel conditions (usually those users at the cell boundary) at unfavorable locations are assigned with low-order modulation schemes and low-rate coding schemes (such as QPSK and 1/3Turbo coding rates).

Fig. 1 illustrates a physical layer procedure of the conventional HSDPA. Referring to fig. 1, the physical layer procedure of HSDPA mainly includes the following steps.

Step S101: user Equipment (User Equipment, abbreviated as "UE") detects a High Speed-Shared Control Channel (HS-SCCH ") message belonging to the UE, receives and demodulates the message, and the message indicates information such as resource allocation and modulation mode of next HS-DSCH transmission. A UE is sometimes also referred to as a terminal.

Step S102: and the UE receives the HS-DSCH according to the information such as the resource allocation condition, the modulation mode and the like indicated by the HS-SCCH.

Step S103: the UE makes corresponding measurements on the HS-DSCH.

Step S104: according to the measurement result of the HS-DSCH, the UE selects a proper transport block size and a modulation mode and generates a Channel Quality Indicator (CQI for short), wherein the Channel Quality Indicator comprises a recommended modulation mode (RMF) and a Recommended Transport Block Size (RTBS).

Step S105: the CQI generated by the UE is reported to a base station Node (Node base station, or Node B) in a corresponding High speed shared Information Channel (HS-SICH).

Step S106: the Node B sends the new control information to the UE through the HS-SCCH, and returns to the step S101.

The HS-SCCH is a downlink control channel used by TD-HSDPA (i.e., TD-SCDMA HSDPA), which is a physical channel used to carry all relevant underlying control information. That is, under the existing protocol, the UE must receive the HS-DSCH channel data in cooperation with the HS-SCCH control information. The HS-SCCH is shared by all UEs initiating HSDPA service, but for a single HS-DSCH Transmission Time Interval (TTI), each HS-SCCH can only carry HS-DSCH related downlink signaling for one UE.

The HS-DSCH is a traffic bearer, and is mapped to a Physical Channel, which is a high-speed Physical Downlink Shared Channel (HS-PDSCH).

In 3GPP, there are two Duplex modes, one is Time Division Duplex (TDD) and one is Frequency Division Duplex (FDD). The HSDPA procedures for both access technologies are substantially identical, but the timing relationship between the channels involved in HSDPA is different.

FIG. 2 shows the timing relationship between HS-SCCH, HS-PDSCH, and HS-SICH channels in TD-SCDMA. In the example of the figure, special time slots in TD-SCDMA frame structures such as DwPTS, UpPTS and the like are not drawn, only 7 common time slots are shown, and HS-SCCH, HS-PDSCH and HS-SICH are respectively allocated in

time slots

3, 5 and 1; and the HS-PDSCH only occupies one time slot by allocation, so the time slot is the first HS-PDSCH time slot of the HS-DSCH channel and is also the last HS-PDSCH time slot of the HS-DSCH channel.

Corresponding to the next effective HS-PDSCH allocation, the corresponding time slot information of the HS-DSCH is carried on the HS-SCCH, and the information is given according to a limit: for a given UE, there is an n between the HS-SCCH carrying the corresponding information of HS-DSCH and the first indicated HS-DSCH (in time)_HS-SCCHAn offset of ≧ 3 slots. DwPTS and UpPTS are not considered in this restriction. The corresponding slot information of the HS-DSCH does not refer to the following two subframes but always points to the same or the next subframe.

The following restrictions are required for the UE to send the corresponding ACK/NACK for HS-DSCH on the next valid companion HS-SICH: to one fingerFor a UE, there is an n between the HS-PDSCH (in time) and the HS-SICH of the last allocation_HS-SICHAn offset of ≧ 9 slots. DwPTS and UpPTS are not considered in this restriction. Therefore, the HS-SICH transmission needs to always be performed one sub-frame after the HS-DSCH.

With particular reference to FIG. 2, the first HS-PDSCH slot scheduled by HS-SCCH 201 of n sub-frames is not the HS-PDSCH 204 of this sub-frame, but rather is the HS-PDSCH202 of n +1 sub-frames, since the latter is the first to satisfy n_HS-SCCHAn offset of ≧ 3 slots. Similarly, the HS-SICH corresponding to HS-PDSCH202 of n +1 sub-frame is not HS-SICH 205 of n +2 sub-frame, but HS-SICH 203 of n +3 sub-frame, since the latter is the first one satisfying n +_HS-SICHAn offset of ≧ 9 slots.

In the existing protocol, each HS-DSCH transmission must be completed under the coordination of HS-SCCH signaling. The overhead of HS-SCCH signaling is small compared to large packet traffic transmission, but for small packet traffic transmission, such as Voice over IP (VoIP) or other internet protocol Multimedia Subsystem (IMS) real-time traffic, the overhead of HS-SCCH signaling is considerable, and therefore, the signaling overhead must be reduced.

In order to adapt to the transmission of small data packet services such as VoIP, HS-SCCH Less operation is introduced into an FDD-HSDPA system, in summary, each transmission block is transmitted for the first time without HS-SCCH indication, and the terminal performs blind detection and receiving on a predefined HS-PDSCH and caches the HS-PDSCH according to the configuration of high-level signaling; and when the primary transmission fails to carry out retransmission, the new HS-SCCH type is used for transmission in a matching way, and the control terminal combines the retransmitted HS-PDSCH data with the data cached in the blind detection, thereby achieving the purpose of saving HS-SCCH signaling.

Fig. 3 shows a primary HS-SCCH Less procedure in an FDD system.

Step S401: the terminal starts to receive the HS-SCCH; after receiving Part 1, steps S402 and S403 start.

Step S402: the terminal judges whether the UE identification carried by the HS-SCCH Part 1 points to the terminal, if so, the step S407 is executed; if not, go to step S403.

Step S403: the terminal starts to receive and blindly detects a preset HS-PDSCH channel; step S404 is then performed.

Step S404: the terminal judges whether the preset HS-PDSCH channel carries the UE identification pointing to the terminal and whether the CRC is correct. If yes, go to step S405; if not, go to step S406.

Step S405: the terminal sends an ACK acknowledgement to the base station. After that, this operation is ended.

Step S406: and the terminal sends the data after blind detection to a reserved BUFFER cache. After that, this operation is ended.

Step S407: judging whether the HS-SCCH channel is a novel HS-SCCH channel (namely the HS-SCCH channel aiming at HS-SCCH Less operation), if so, executing step S408; if not, step S409 is executed.

Step S408: and receiving the HS-PDSCH according to the indication of the novel HS-SCCH, combining the HS-PDSCH with the data which is indicated by the HS-SCCH and is buffered in the BUFFER before, and decoding. Step S410 is then performed.

Step S409: and receiving the HS-PDSCH indicated by the conventional HS-SCCH channel, and receiving and executing the conventional HS-DSCH process. After that, this operation is ended.

Step S410: and the terminal judges whether the received HS-PDSCH CRC is correct or not. If yes, go to step S411; if not, go to step S412.

Step S411: and the terminal sends ACK to the network and ends the operation.

Step S412: the terminal determines whether the retransmission is the first retransmission, if so, step S413 is executed; if not, go to step S414.

Step S413: and the terminal caches the merged HS-PDSCH service data in the BUFFER and sends NACK to the network. And then ending the operation.

Step S414: and the terminal discards the received HS-PDSCH service data and sends NACK to the network. And then ending the operation.

In an FDD system, a variable group HS-SCCH-LESS-PARAMS is used for storing relevant parameters of HS-SCCH LESS; the HS-SCCH LESS STATUS of the terminal is set and maintained using the HS-SCCH-LESS STATUS. As shown in tables 1 and 2.

TABLE 1 HS _ SCCH _ LESS _ PARAMS

Information element/group declaration	Multiple of	Type and reference	Description of the invention
				U E parameters forHS-SCCH less			HS-SCCH less parameter

TABLE 2 HS _ SCCH _ LESS _ STATUS

Information element/group declaration	Multiple of	Type and reference	Description of the invention
				HS_SCCH_LESS_STATUS		Of the Boolean type	True: ongoing HS-SCCH less HS-DSCH transmission is set to FALSE when leaving UTRA RRC connected mode "

As shown in table 3, Information Element (IE) is also used in FDD to indicate related Information to the terminal. This information element is present in a plurality of downlink messages including cell update, radio bearer reconfiguration, etc. In this information element, code resource configuration information, transport block list information, and the like are provided.

TABLE 3 HS-SCCH less information

Information element/group declaration	Multiple of	Type and reference	Description of the invention
				CHOICE HS-SCCH lessoperation
>Continue HS-SCCH lessoperation
				>New HS-SCCH lessoperation
>>FDD
				>>>HS-PDSCH CodeIndex	Integer (from 1 to 15)	First code number of HS-PDSCH channel code
>>>Transport Block SizeList	From 1 to.<maxHS-SCCHLessTrBlk>
				>>>>Transport Block SizeIndex	Integer (from 1 to 90)	Numbering of MAC-hs transport block sizes
>>>>HS-PDSCH SecondCode Support		Boolean type	Indicating whether the transport block size uses the second HS-PDSCH code. If the value is true, the number of the second HS-PDSCH Code is 'HS-PDSCH Code Index' plus 1.

Referring to the FDD-HSDPA system, the TD-HSDPA system can also introduce the HS-SCCHLess process to reduce the HS-SCCH signaling overhead under certain services. However, due to the difference between TD-HSDPA and FDD-HSDPA, the introduction of this procedure requires appropriate modifications.

Firstly, in the aspect of resource pre-configuration, aiming at the difference of TDD and FDD wireless channel resource division modes, the scheme defines the pre-configured blind detection resource of TDD as a resource block consisting of a plurality of code channels and time slots. Multiple UEs may share the same pre-configured resource to improve resource utilization. In the current scheme, the blind detection resource only specifies the size of a code channel, a time slot and a transport block, so that in each TTI (in TD-SCDMA, the length of one TTI is one sub-frame for an HS-PDSCH channel), if the UE in a Less activation state is not scheduled by an HS-SCCH, the UE performs the blind detection operation on the pre-configured resource. However, for some services with low speed, such as VoIP, there is no need for a specific UE to have data arriving in every TTI, and if the UE performs blind detection in every TTI, power consumption of the UE will increase, and battery life will be reduced.

In addition, when the service is in a relatively long silent period, for example, during the VoIP call service, when one user speaks, and the other user usually listens, there is almost no data sent to the UE in the resources that the UE of the speaking party blindly detects, and then the blind detection operation inevitably increases extra power consumption.

In addition, different from an FDD terminal, the spreading code used in TD-SCDMA is shorter, and the terminal needs to implement a joint detection algorithm, which has a larger calculation amount and further brings more power consumption. Therefore, if the HS-SCCH Less process in the TD-HSDPA is performed, if the network indicates the predefined HS-PDSCH resources to the terminal, the carried service data sent to the terminal performing the blind detection is too little, that is, the number of times of using the resource to actually send to the terminal is too few when the predefined resource is subjected to multiple blind detections by the terminal, which results in too many meaningless blind detections by the terminal, the waste of the terminal power is inevitably caused, because the terminal consumes energy to detect the data that is not sent to itself. Therefore, a proposal is provided that in TD-HSDPA, the discontinuous allocation of HS-SCCH Less predefined blind detection resources is introduced, namely, a TD-SCDMA terminal does not perform blind detection on each subframe, but only requires the terminal to perform blind detection on partial subframes in a period with a certain length according to the configuration requirement; the network only sends data to the terminals on the discontinuous subframes which are subjected to blind detection by the terminals; for example, the terminal may be configured to blind detect the predefined resource in the first subframe of every 4 subframes, and not blind detect in the other 3 subframes. Although the scheme limits the randomness of data sent to a certain terminal by the network, the terminal can be reduced as much as possible to perform blind detection on data which is not sent to the terminal on the premise of ensuring the real-time performance of the service as long as the parameter setting is reasonable.

In addition, in order to reduce the complexity and cost of the terminal, blind detection and normal HS-SCCH scheduling non-concurrency can be considered in TD-SCDMA. That is, the HS-PDSCH time slots scheduled by the HS-SCCH and the predefined blind detection HS-PDSCH time slots are not in one TTI (Transmission time Interval); if this happens, the terminal receives only the HS-PDSCH scheduled by the HS-SCCH and does not blindly detect the predefined resources. This can prevent the terminal from receiving multiple HS-DSCH channels simultaneously in one subframe.

With the introduction of discontinuous blind detection in the TD-SCDMA HS-SCCH Less process, other problems will be introduced.

Firstly, when a terminal performs blind detection on data sent to the terminal and does not feed back HS-SICH due to decoding errors, retransmission occurs; namely, the terminal is dispatched through the HS-SCCH, and the retransmitted data is received. Due to the limitation of network resources, the scheduled HS-PDSCH time slot cannot be guaranteed not to coincide with the TTI for blind detection of the terminal configured in the discontinuous blind detection, that is, concurrence may occur between scheduled retransmission and blind detection according to the pattern. Thus, if the terminal is required to receive only the scheduled retransmission HS-PDSCH, the actual bandwidth used by the network to send new data to the terminal according to the discontinuous blind detection mode is reduced, and further, the service data cannot be sent in time.

Secondly, when services such as VoIP in the HS-SCCH Less process are concurrent with other HSDPA services, the discontinuous blind detection mode of the terminal can be damaged, so that VoIP service data is congested and cannot be sent in time.

For example, in the VoIP service, the blind detection pattern of the terminal is configured to be once for the first blind detection of every 4 subframes and 4 times for the blind detection in 16 subframes, but if the terminal is scheduled to receive other services or receive retransmission in 2 subframes of the 4 subframes for the blind detection, it is equivalent to receive new VoIP data through the blind detection by using only 2 subframes in the 16 subframes, and further, the actual discontinuous blind detection period is once for every 8 subframes.

Especially, when the channel environment is not good, if continuous multiple times and a large amount of retransmission occur, or if the VoIP service and other HSDPA service are concurrent, the terminal receives the service time slot scheduled by the HS-SCCH at the blind detection subframe that should receive new data, so that the actual equivalent blind detection period of the terminal in the discontinuous blind detection process is lengthened, which causes that new service data cannot be transmitted in time, and inevitably reduces the real-time performance of the service.

Disclosure of Invention

The invention aims to provide a blind detection transceiving method and equipment in a time division synchronous code division multiple access system, which can reduce or avoid delayed sending of service data due to discontinuous blind detection.

In order to solve the above technical problem, an embodiment of the present invention provides a method for sending blind test data in a td-scdma system, which includes the following steps:

the network sends data needing blind detection to user equipment according to a first blind detection mode, wherein blind detection resources in the first blind detection mode are discontinuously distributed by taking a specified period as a unit, and the specified period is a subframe or a frame or a transmission time interval;

and if the first preset condition is met, sending data needing blind detection to the user equipment according to a second blind detection mode, wherein blind detection resources in the second blind detection mode comprise blind detection resources except the first blind detection mode.

The embodiment of the invention also provides a blind detection receiving method in the time division synchronous code division multiple access system, which comprises the following steps:

the user equipment performs blind detection on data from a network according to a first blind detection mode, wherein blind detection resources in the first blind detection mode are discontinuously distributed by taking a specified period as a unit, and the specified period is a subframe or a frame or a transmission time interval;

and if the third preset condition is met, performing blind detection on the data from the network according to a second blind detection mode, wherein the blind detection resources in the second blind detection mode comprise blind detection resources except the first blind detection mode.

The embodiment of the invention also provides a network side device of a time division synchronous code division multiple access system, which comprises:

a blind test sending unit, configured to send data, and send, by default, the data to be blind tested to user equipment according to a first blind test pattern, where blind test resources in the first blind test pattern are discontinuously distributed in a unit of a specified period, where the specified period is a subframe or a frame or a transmission time interval;

and the control unit is used for judging whether a first preset condition is met or not, and if so, instructing the blind test sending unit to send data needing blind test to the user equipment according to a second blind test pattern, wherein the blind test resources in the second blind test pattern comprise blind test resources except the first blind test pattern.

The embodiment of the invention also provides a user equipment of a time division synchronous code division multiple access system, which comprises:

a blind test receiving unit, configured to perform blind test on data from a network, and perform blind test on the data from the network according to a first blind test pattern in a default state, where blind test resources in the first blind test pattern are discontinuously distributed in a unit of a specified period, where the specified period is a subframe or a frame or a transmission time interval;

and the control unit is used for judging whether a third preset condition is met or not, and if so, instructing the blind test receiving unit to carry out blind test on the data from the network according to a second blind test pattern, wherein the blind test resources in the second blind test pattern comprise blind test resources except the first blind test pattern.

Compared with the prior art, the implementation mode of the invention has the main differences and the effects that:

because the blind detection resources except the default first blind detection mode are utilized for transmission under specific conditions, the delayed transmission of the traffic data caused by discontinuous blind detection can be reduced or avoided.

Further, if the recently scheduled blind detection resources are too much, it can be determined that the data that needs to be transmitted by the blind detection method is likely to not obtain enough bandwidth, and at this time, the state of increasing the blind detection frequency can be entered, so as to reduce or prevent the phenomenon of delayed transmission of the service data.

Further, after the state of sending data by using the additional blind detection resource lasts for a period of time, the backlog condition of the service data should already be relieved, and at this time, the terminal is timely retreated to the default first blind detection mode, so that excessive power consumption of the terminal can be avoided.

Furthermore, because the duration of the second blind detection pattern is a preset limited value, the network and the UE can exit the second blind detection pattern consistently without interacting related signaling, thereby saving precious air interface resources

Furthermore, the second blind detection mode is configured to be continuous blind detection with a certain time limit, and all possible blind detection resources can be utilized to the maximum extent, so that the real-time performance of the service can be ensured to the maximum extent.

Further, even if the second blind detection pattern does not include all resources in the first blind detection pattern, the blind detection resources in the first blind detection pattern can be subjected to blind detection while the blind detection is performed according to the second blind detection pattern, so that even if the UE does not timely receive a signaling for recovering the first blind detection pattern sent by the network due to interference and the like, the UE does not miss data issued by the first blind detection pattern, the probability of retransmission scheduling is reduced, and the overall communication quality is improved.

Drawings

Fig. 1 is a diagram illustrating a physical layer process of HSDPA in the related art;

FIG. 2 is a timing diagram between HS-SCCH time slots, HS-PDSCH time slots, and HS-SICH time slots in a conventional TDD system;

FIG. 3 is a diagram of a primary HS-SCCH Less process in a conventional FDD system;

fig. 4 is a flow chart illustrating a method for sending blind test data according to a first embodiment of the present invention;

fig. 5 is a schematic flow chart of a blind detection receiving method according to a second embodiment of the present invention;

fig. 6 is an exemplary dynamic blind detection procedure of TD-SCDMA system according to the second embodiment of the present invention.

Detailed Description

In the following description, numerous technical details are set forth in order to provide a better understanding of the present application. However, it will be understood by those skilled in the art that the technical solutions claimed in the present application can be implemented without these technical details and with various changes and modifications based on the following embodiments.

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In each embodiment of the present invention, a network or a communication protocol performs blind detection physical resource configuration on a UE in a specific specified period (subframe or frame, or TTI), which is called a blind detection pattern; if the HS-DSCH scheduled by the HS-SCCH is located in the ith subframe (or frame, TTI), the UE is scheduled by the HS-SCCH in the ith subframe (or frame, TTI); in the HS-SCCH Less process, retransmission data is sent through HS-SCCH scheduling, which is called HS-SCCH retransmission scheduling.

It should be noted that, in the present invention, the relation "including", "not including", "overlapping", "not overlapping", and the like between the blind detection resource of one blind detection pattern and the blind detection resource of another blind detection pattern describes the relation between the blind detection resources configured by the two blind detection patterns when the two blind detection patterns are simultaneously used (including sending on the blind detection resources and receiving the blind detection resources).

A first embodiment of the present invention relates to a method for sending blind detection data in a TD-SCDMA system, and a flow thereof is shown in fig. 4.

In step 401, the network configures the UE with information of blind detection. The network may not send this parameter if some configuration information is already specified in the communication protocol, i.e. known at the UE side. Such information includes, but is not limited to:

configuration information of a first blind detection pattern;

configuration information of a second blind detection pattern;

the user equipment enters configuration information for improving the blind detection frequency state condition.

The configuration information of the first blind detection pattern includes: a blind detection period of the first blind detection pattern and a designated period (subframe, frame, TTI) for performing blind detection in the blind detection period.

The configuration information of the second blind detection pattern includes:

a duration of the second blind test pattern and an identifier representing a continuous blind test; or,

the duration of the second blind detection pattern, the blind detection period of the second blind detection pattern, and a designated period (subframe, frame, TTI) during which blind detection is performed.

Then, step 402 is entered, and the network sends data requiring blind detection to the UE according to a first blind detection pattern, where blind detection resources in the first blind detection pattern are discontinuously distributed in a unit of a specified period, where the specified period is a subframe, a frame, or a TTI.

In the present invention, the phrase "transmitting data in a certain blind detection pattern" means that data can be transmitted using blind detection resources in the blind detection pattern, and does not necessarily mean that all blind detection resources in the blind detection pattern transmit data. When the network has no data, the data can not be transmitted in some blind detection resources.

Then step 403 is entered, the network determines whether the first predetermined condition is met currently, if yes, step 404 is entered, otherwise, step 402 is returned to send next data to be blind-checked to the UE according to the first blind-check pattern.

The first predetermined condition in the present embodiment is one or a combination of the following:

the condition of entering a state of improving the blind detection frequency, which is pre-configured in the UE, is met;

the network sends signaling indicating that the blind detection frequency is required to be improved to the UE, and does not need to feed back confirmation information or needs to feed back the confirmation information and returns the confirmation information according to the regulation of a communication protocol.

The condition for entering the state of increasing the blind detection frequency can be one of the following conditions:

on a specified period in which blind detection resources are configured in p continuous first blind detection patterns, the UE is scheduled by the HS-SCCH for q times, wherein p is more than or equal to 1, and q is less than or equal to p; or,

on a specified period in which blind detection resources are configured in p continuous first blind detection patterns, the UE is scheduled by the HS-SCCH for q times, and the network already receives feedback sent by the UE through the HS-SICH when the last scheduling of the q times is performed, wherein p is more than or equal to 1, and q is less than or equal to p.

The conditions for entering the state of improving the blind detection frequency are used for judging whether the recently scheduled blind detection resources are too much, if so, the data needing to be sent in the blind detection mode can be judged to possibly not obtain enough bandwidth, and at the moment, the state of improving the blind detection frequency can be entered to reduce or prevent the phenomenon of delayed sending of the service data.

In step 404, the network sends data requiring blind detection to the UE according to a second blind detection pattern, where blind detection resources in the second blind detection pattern include blind detection resources other than the first blind detection pattern.

In this embodiment, the blind detection resources in the second blind detection pattern include all the blind detection resources in the first blind detection pattern. The second blind detection pattern may be composed of the first blind detection pattern and additional blind detection patterns, wherein blind detection resources in the additional blind detection patterns include blind detection resources other than the first blind detection pattern.

Sending the data requiring blind detection to the UE according to the second blind detection pattern may be implemented by one or a combination of the following manners:

sending data needing blind detection to the UE according to an additional blind detection mode;

and sending data needing blind detection to the UE according to the first blind detection mode.

It can be understood that, due to fluctuation of data amount and the like, when the amount of data that needs to be transmitted through the blind detection resources is small, although the data is transmitted according to the second blind detection pattern, it is not required to transmit data in all the blind detection resources of the second blind detection pattern, and the data may be transmitted only in the blind detection resources of the first blind detection pattern included in the second blind detection pattern. Certainly, the UE at the receiving end does not know that the network only transmits in the blind detection resource of the first blind detection pattern, and the UE still needs to perform blind detection according to the second blind detection pattern.

Furthermore, it is to be understood that the second blind detection pattern may not be a combination of the additional blind detection pattern and the first blind detection pattern, but may be a separately defined blind detection pattern. The second blind detection pattern may not completely include the blind detection resources in the first blind detection pattern, and the blind detection resources in the second blind detection pattern may intersect with or may not intersect with the blind detection resources in the first blind detection pattern.

And then entering step 405, in a state of sending data needing blind detection to the UE according to the second blind detection pattern, the network determines whether a second predetermined condition is currently met, if so, entering step 402, and returning to sending the data needing blind detection to the UE according to the first blind detection pattern, otherwise, returning to step 404, and continuing to send the next data needing blind detection to the UE according to the second blind detection pattern.

After the state of sending data by using the additional blind detection resource lasts for a period of time, the backlog condition of the service data can be relieved, and the terminal can timely fall back to the default first blind detection mode, so that excessive power consumption of the terminal can be avoided.

The second predetermined condition in the present embodiment is one or a combination of the following:

after the second blind detection mode is finished;

the network sends signaling indicating that the blind detection frequency is required to be reduced to the UE and receives feedback of the UE.

In this embodiment, the duration of the second blind test pattern is a limited predetermined value, so that the network and the UE can consistently exit the second blind test pattern without interacting related signaling, thereby saving precious air interface resources. It is to be understood that the duration of the second blind detection pattern may also be an infinite value, and the network and the UE are coordinated to exit the second blind detection pattern simultaneously through signaling.

The second embodiment of the present invention relates to a blind detection receiving method in TD-SCDMA system, and the flow thereof is shown in fig. 5.

In step 501, the UE receives configuration information of the network, and if the network does not send any configuration information but the communication protocol has been specified so that the UE knows the information, the UE adopts the communication protocol specified value for the configuration. Such configuration information includes, but is not limited to:

configuration information of a first blind detection pattern;

configuration information of a second blind detection pattern;

The configuration information of the second blind detection pattern includes: a duration of the second blind detection pattern, and one of:

and an identifier indicating continuous blind detection, or a blind detection period of the second blind detection mode and a specified period (subframe, frame, TTI) for performing blind detection in the blind detection period.

If the configuration information of the second blind detection pattern has an identifier indicating continuous blind detection, the second blind detection pattern is indicated to be continuously blind detected in each specified period (subframe, frame, TTI) unless the specified period is scheduled. The second blind detection mode is configured to be continuous blind detection with a certain time limit, and all possible blind detection resources can be utilized to the maximum extent, so that the real-time performance of the service is ensured to the maximum extent.

It can be understood that the duration of the second blind detection pattern may not be set, and the duration of the second blind detection pattern is an infinite value, and the network and the UE may be coordinated to exit the second blind detection pattern simultaneously through signaling.

Then, step 502 is entered, and the UE performs blind detection on data from the network according to a first blind detection pattern, where blind detection resources in the first blind detection pattern are discontinuously distributed in a unit of a specified period, where the specified period may be a subframe, a frame, or a TTI.

It can be understood that the term "performing blind detection according to a certain blind detection pattern" in the present invention refers to performing blind detection on all blind detection resources in the blind detection pattern, where the blind detection resources may or may not carry data.

Then step 503 is entered, the UE determines whether the third predetermined condition is currently met, if yes, step 504 is entered, otherwise, step 502 is returned to perform blind detection on the next data.

The third predetermined condition may be one or a combination of:

the UE receives a signaling which indicates that the blind detection frequency is required to be improved from the network, and does not need to feed back the confirmation information according to the regulation of the communication protocol, or the confirmation information is required to be fed back and the confirmation information is already returned.

on a specified period in which blind detection resources are configured in p continuous first blind detection patterns, the UE is scheduled by the HS-SCCH for q times, and the UE sends feedback through the HS-SICH when the UE is scheduled for the last time in the q times, wherein p is more than or equal to 1, and q is less than or equal to p.

The conditions for entering the state of improving the blind detection frequency can be used for judging whether the recently scheduled blind detection resources are too much, if so, the data needing to be sent in the blind detection mode can be judged to possibly not obtain enough bandwidth, and at the moment, the state of improving the blind detection frequency can be entered to reduce or prevent the phenomenon of delayed sending of the service data.

In step 504, the UE performs blind detection on data from the network according to a second blind detection pattern, where blind detection resources in the second blind detection pattern include blind detection resources other than the first blind detection pattern. Because the blind detection resources except the default first blind detection mode are utilized for transmission under specific conditions, the delayed transmission of the traffic data caused by discontinuous blind detection can be reduced or avoided.

In this embodiment, the blind detection resources in the second blind detection pattern include all the blind detection resources in the first blind detection pattern. The second blind detection pattern may be composed of the first blind detection pattern and additional blind detection patterns, wherein blind detection resources in the additional blind detection patterns include blind detection resources other than the first blind detection pattern. Of course, in other examples of the present invention, the second blind detection pattern may also be an independently defined blind detection pattern.

Then, entering step 505, in a state of performing blind detection on data from the network according to the second blind detection pattern, the UE determines whether a fourth predetermined condition is currently satisfied, and if so, entering step 502, and resuming to perform blind detection on data from the network according to the first blind detection pattern; if not, go back to step 504 to continue to blind check the next data from the network in the second blind check pattern.

The fourth predetermined condition may be one or a combination of:

after the second blind detection mode is finished;

the UE receives signaling from the network indicating that the blind detection frequency is required to be reduced, and performs feedback.

The third embodiment of the invention relates to a blind detection receiving method in a TD-SCDMA system. The third embodiment is substantially the same as the second embodiment, differing primarily in that: in a second embodiment, the blind detection resources in the second blind detection pattern include all the blind detection resources in the first blind detection pattern; in the third embodiment, the second blind detection pattern does not completely include all the blind detection resources in the first blind detection pattern.

In the third embodiment, when a third predetermined condition is satisfied, when the UE performs blind detection on data from the network according to the second blind detection pattern, if the blind detection resources not covered by the second blind detection pattern in the first blind detection pattern are not scheduled by the HS-SCCH, the blind detection resources not covered by the second blind detection pattern in the first blind detection patterns are also blind detected. Therefore, even if the UE does not timely receive the signaling for recovering the first blind detection pattern sent by the network due to the reasons of interference and the like, the UE does not miss the data sent by the first blind detection pattern, the probability of retransmission scheduling is reduced, and the overall communication quality is improved.

Method embodiments of the present invention may be implemented in software, hardware, firmware, etc. Whether implemented in software, hardware, or firmware, the instruction code may be stored in any type of computer-accessible memory (e.g., permanent or modifiable, volatile or non-volatile, solid or non-solid, fixed or removable, etc.). Also, the Memory may be, for example, Programmable Array Logic (PAL), Random Access Memory (RAM), Programmable Read Only Memory (PROM), Read-Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), a magnetic disk, an optical disk, a Digital Versatile Disk (DVD), or the like.

Fig. 6 is an example of the HS-SCCH Less dynamic blind detection process in the TD-HSDPA system of the present invention. In the figure, each square represents a predefined resource of HS-PDSCH in one subframe. The diagonal squares represent predefined resources in one subframe configured by the first blind detection pattern, that is, the part of the UE that should perform blind detection when not scheduled by the HS-SCCH. The grid-line squares represent predefined resources in one subframe of the first blind detection pattern configuration, but on this subframe the UE is scheduled by the HS-SCCH. The horizontal line square represents a predefined resource in one subframe in the second blind detection pattern configuration; however, when the resources of this type and the resources represented by the diagonal (or grid) squares are located in the same subframe, only the diagonal (or grid) squares are marked. The blank filled squares represent that the UE may not perform blind detection operation on the corresponding subframe.

The configuration information of the first blind detection pattern of the UE is: the blind detection period is 4 subframes, the first 2 subframes in the period are subjected to blind detection, and the last 2 subframes can be subjected to non-blind detection; i.e. the UE shall perform blind detection on n, n +1, n +4, n + 5.

The configuration information of the second blind detection pattern of the UE is: and in the time length of 4 subframes, the UE continuously performs blind detection.

The conditions for entering the state of improving the blind detection frequency are as follows: on the subframe configured by the p-1 first blind detection patterns, the UE has q-1 times scheduled by the HS-SCCH, and the last time of the q-1 times schedules the HS-SICH which has sent feedback.

In the example of fig. 6, under normal conditions, the network only sends blind detection data to the UE in n, n +1, n +4, and n + 5.. the subframe, of course, if no data is sent to the UE, the network may send data to other terminals that also blindly detect the part of resources on the predefined resources; and the UE may perform blind detection only in these subframes.

In the n +4 sub-frame, the UE is scheduled by the HS-SCCH. Because the condition for entering the high-frequency blind detection is that the UE performs continuous blind detection on consecutive T-4 subframes after sending the HS-SICH as long as the UE is scheduled on 1 subframe in the first blind detection pattern. Therefore, the UE is scheduled in the n +4 sub-frame, and the HS-SICH is fed back in the n +6 sub-frame. Since the HS-SICH belongs to an uplink channel and is before the blind detection operation of the same subframe, the UE should start at the n +6 subframe and perform blind detection at the n +9 subframe and 4 consecutive subframes.

And in the n +5 sub-frame, the UE is scheduled by the HS-SCCH again, and by analogy, the UE starts from the n +7 sub-frame to the n +10 sub-frame after feeding back the HS-SICH in the n +7 sub-frame and continuously performs blind detection on 4 sub-frames.

Therefore, the UE continues to perform blind detection from n +6 to n +10 subframes because it is not scheduled by the HS-SCCH. The subframes n +8 and n +9 are subframes where the subframes configured by the first blind detection pattern and the subframes configured by the second blind detection pattern overlap.

When the subframe is n +11, because the subframe configured by the second blind detection mode configuration information when the blind detection frequency is high, namely the subframe from n +6 to n +10, is subjected to blind detection when not scheduled by the HS-SCCH, the subframe of n +11 does not belong to the subframe configured by the second blind detection mode, and simultaneously, the subframe is not the subframe configured by the first blind detection mode, so that the UE can not perform the blind detection in the subframe of n + 11.

Starting from the n +12 subframes, the UE adjusts to the blind detection period and frequency of the normal first blind detection pattern.

As can be seen from fig. 6, at n +4 and n +5, the UE is scheduled by the HS-SCCH, receives the retransmitted data, or other services, and the bandwidth that could be used to transmit the VoIP new data is occupied. However, due to the introduction of the high-frequency blind detection configuration (i.e., the second blind detection pattern), the UE performs blind detection 3 times more than the normal state at n +6, n +7, and n +10, respectively; and because the HS-SICHs corresponding to the n +4 and n +5 subframes when being scheduled have been fed back, that is, if the network receives these feedbacks correctly, the UE enters a high-frequency blind detection state according to this confirmation, and can send new VoIP data that may be blocked at the n +4 and n +5 subframes at the n +6, n +7 and n +10 subframes. And after the subframe n +11, the UE automatically exits the high-frequency blind detection state.

Therefore, after the dynamic blind detection process is introduced, the new data blockage caused by the scheduling of the blind detection subframe, namely the first blind detection mode is broken can not occur; meanwhile, the UE is prevented from continuously working in the high-frequency blind detection operation for timely receiving data. And on the premise of ensuring normal receiving and sending of the service, excessive power consumption is avoided.

The fourth embodiment of the present invention relates to a network side device of TD-SCDMA system, which comprises:

and the blind detection sending unit is used for sending data, and sending the data needing blind detection to the UE according to a first blind detection mode under the default condition, wherein the blind detection resources in the first blind detection mode are discontinuously distributed by taking a specified period as a unit, and the specified period is a subframe, a frame or a TTI.

And the control unit is used for judging whether the first preset condition is met, instructing the blind test sending unit to send the data needing blind test to the UE according to a second blind test pattern if the first preset condition is met, wherein the blind test resources in the second blind test pattern comprise blind test resources except the first blind test pattern, judging whether the second preset condition is met under the condition of sending the data needing blind test to the UE according to the second blind test pattern, and instructing the blind test sending unit to recover to send the data needing blind test to the UE according to the first blind test pattern if the second preset condition is met.

The first predetermined condition is one or a combination of:

the condition of entering into the state of improving the blind detection frequency, which is configured in the UE in advance, is met.

The network sends signaling indicating that the blind detection frequency is required to be increased to the UE.

The condition for entering the state of improving the blind detection frequency is one of the following conditions:

The duration of the second blind detection pattern is a limited predetermined value.

The second predetermined condition is one or a combination of:

after the second blind detection mode is finished;

The blind detection resources in the second blind detection pattern comprise all the blind detection resources in the first blind detection pattern. Wherein,

the second blind detection pattern is composed of the first blind detection pattern and an additional blind detection pattern, wherein blind detection resources in the additional blind detection pattern comprise blind detection resources except the first blind detection pattern, or the second blind detection pattern is an independently defined blind detection pattern.

The first embodiment is a method embodiment corresponding to the present embodiment, and the present embodiment can be implemented in cooperation with the first embodiment. The related technical details mentioned in the first embodiment are still valid in this embodiment, and are not described herein again in order to reduce repetition. Accordingly, the related-art details mentioned in the present embodiment can also be applied to the first embodiment.

The fifth embodiment of the present invention relates to a UE of a TD-SCDMA system, wherein the UE comprises:

and the blind detection receiving unit is used for carrying out blind detection on the data from the network and carrying out blind detection on the data from the network according to a first blind detection mode in a default state, wherein blind detection resources in the first blind detection mode are discontinuously distributed by taking a specified period as a unit, and the specified period is a subframe, a frame or a TTI.

The control unit is used for judging whether a third preset condition is met or not, and if so, the control unit instructs the blind test receiving unit to carry out blind test on the data from the network according to a second blind test pattern, wherein the blind test resources in the second blind test pattern comprise blind test resources except the first blind test pattern; and the blind detection receiving unit is further used for judging whether a fourth preset condition is met or not in the state of carrying out blind detection on the data from the network according to the second blind detection mode, and if so, the blind detection receiving unit is indicated to recover to carry out blind detection on the data from the network according to the first blind detection mode.

The third predetermined condition is one or a combination of:

the UE receives signaling from the network indicating a request to increase the blind detection frequency.

The fourth predetermined condition is one or a combination of:

after the second blind detection mode is finished;

The second or third embodiment is a method embodiment corresponding to the present embodiment, and the present embodiment can be implemented in cooperation with the second or third embodiment. The related technical details mentioned in the second or third embodiment are still valid in this embodiment, and are not described herein again in order to reduce repetition. Accordingly, the related-art details mentioned in the present embodiment can also be applied to the second or third embodiment.

It should be noted that, all units mentioned in the embodiment of the apparatus of the present invention are logic units, and physically, one logic unit may be one physical unit, or may be a part of one physical unit, or may be implemented by a combination of multiple physical units, where the physical implementation manner of the logic units itself is not the most important, and the combination of functions implemented by the logic units is a key to solve the technical problem provided by the present invention. Furthermore, the above-described embodiments of the apparatus of the present invention do not introduce elements that are less relevant to solve the technical problems posed by the present invention in order to highlight the innovative part of the present invention, which does not indicate that there are no other elements present in the above-described embodiments of the apparatus.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

Claims

1. A blind test data sending method in a time division synchronous code division multiple access system is characterized by comprising the following steps:

the network sends data needing blind detection to user equipment according to a first blind detection mode, wherein blind detection resources in the first blind detection mode are discontinuously distributed by taking a specified period as a unit, and the specified period is a subframe or a frame or a transmission time interval; the network or the communication protocol configures the physical resources for the user equipment to perform blind detection in a specific specified period, which is called a blind detection mode;

if the first preset condition is met, sending data needing blind detection to the user equipment according to a second blind detection mode, wherein blind detection resources in the second blind detection mode comprise blind detection resources except the first blind detection mode; wherein the first predetermined condition is one or a combination of:

the condition of entering a state of improving blind detection frequency, which is configured in the user equipment in advance, is met;

the network sends signaling indicating that the blind detection frequency is required to be improved to the user equipment, and does not need to feed back confirmation information or needs to feed back the confirmation information and returns the confirmation information according to the regulation of a communication protocol.

2. The method for blind detection data transmission in a td-scdma system according to claim 1, wherein said condition for entering the state of improving blind detection frequency is one of:

on a specified period in which blind detection resources are configured in p continuous first blind detection patterns, the user equipment is scheduled by a high-speed shared control channel for q times, wherein p is more than or equal to 1, and q is less than or equal to p; or,

on a specified period in which blind detection resources are configured in p continuous first blind detection patterns, the user equipment is scheduled by a high-speed shared control channel for q times, and the network already receives feedback sent by the user equipment through the high-speed shared information channel when the user equipment is scheduled for the last time of the q times, wherein p is more than or equal to 1, and q is less than or equal to p.

3. The blind detection data transmission method in the td-scdma system according to claim 2, further comprising the steps of:

under the condition that the data needing blind detection is sent to the user equipment according to the second blind detection mode, if a second preset condition is met, the data are recovered to be the data needing blind detection and sent to the user equipment according to the first blind detection mode; the second predetermined condition is one or a combination of:

after the second blind detection pattern is finished;

the network sends signaling indicating that the blind detection frequency is required to be reduced to the user equipment and receives feedback of the user equipment.

4. The method as claimed in claim 3, wherein the duration of the second blind detection pattern is a predetermined limited value.

5. The method as claimed in claim 4, wherein the blind detection resources in the second blind detection pattern include all the blind detection resources in the first blind detection pattern.

6. The method for blind detection data transmission in a td-scdma system according to claim 5, wherein said second blind detection pattern is composed of said first blind detection pattern and an additional blind detection pattern, wherein blind detection resources in the additional blind detection pattern include blind detection resources other than the first blind detection pattern;

the step of sending the data requiring blind detection to the user equipment according to the second blind detection mode is realized by one or a combination of the following modes:

sending data needing blind detection to the user equipment according to the additional blind detection mode;

and sending data needing blind detection to the user equipment according to the first blind detection mode.

7. The method as claimed in claim 5, wherein the second blind detection pattern is an independently defined blind detection pattern.

8. A blind detection receiving method in a time division synchronous code division multiple access system is characterized by comprising the following steps:

the user equipment performs blind detection on data from a network according to a first blind detection mode, wherein blind detection resources in the first blind detection mode are discontinuously distributed by taking a specified period as a unit, and the specified period is a subframe or a frame or a transmission time interval; the network or the communication protocol configures the physical resources for the user equipment to perform blind detection in a specific specified period, which is called a blind detection mode;

if the third preset condition is met, performing blind detection on the data from the network according to a second blind detection mode, wherein blind detection resources in the second blind detection mode comprise blind detection resources except the first blind detection mode; the third predetermined condition is one or a combination of:

the user equipment receives a signaling which indicates that the blind detection frequency is required to be improved from the network, and does not need to feed back confirmation information or needs to feed back the confirmation information and returns the confirmation information according to the regulation of a communication protocol.

9. The blind detection receiving method in td-scdma system according to claim 8, wherein said condition for entering the state of increasing blind detection frequency is one of:

and on a specified period in which blind detection resources are configured in p continuous first blind detection patterns, the user equipment is scheduled by the high-speed shared control channel for q times, and the user equipment already sends feedback through the high-speed shared information channel when the user equipment is scheduled for the last time of the q times, wherein p is more than or equal to 1, and q is less than or equal to p.

10. The blind test receiving method in the td-scdma system according to claim 9, wherein in a state of performing blind test on data from the network according to the second blind test pattern, if a fourth predetermined condition is satisfied, the blind test on the data from the network according to the first blind test pattern is resumed; wherein the fourth predetermined condition is one or a combination of:

after the second blind detection pattern is finished;

the user equipment receives a signaling which indicates that the blind detection frequency is required to be reduced from the network and carries out feedback.

11. The blind detection receiving method in td-scdma system according to claim 10, further comprising the following steps before said step of blind detection according to the first blind detection pattern:

the user equipment sets configuration information, which is received from the network or specified by the communication protocol, the configuration information including:

configuration information of a first blind detection pattern;

configuration information of a second blind detection pattern;

12. The blind detection receiving method in td-scdma system according to claim 11, wherein the configuration information of the first blind detection pattern comprises: the blind detection period of the first blind detection mode and the designated period for executing the blind detection in the blind detection period.

13. The blind detection receiving method in td-scdma system according to claim 11, wherein the configuration information of the second blind detection pattern comprises:

a duration of the second blind detection pattern, and one of:

and the identification represents continuous blind detection, or the blind detection period of the second blind detection mode and a specified period for performing blind detection in the blind detection period.

14. The blind detection receiving method in td-scdma system according to claim 13, wherein said second blind detection pattern does not completely include all blind detection resources in the first blind detection pattern;

further comprising the steps of:

when a third predetermined condition is met, when the user equipment performs blind detection on data from the network according to a second blind detection pattern, if blind detection resources which are not covered by the second blind detection pattern in the first blind detection pattern are not scheduled by the high-speed shared control channel, the blind detection resources which are not covered by the second blind detection pattern in the first blind detection patterns are also subjected to blind detection.

15. The blind detect receiving method in td-scdma system according to claim 13, wherein the blind detect resources in the second blind detect pattern comprise all the blind detect resources in the first blind detect pattern; wherein,

the second blind detection pattern consists of the first blind detection pattern and an additional blind detection pattern, wherein blind detection resources in the additional blind detection pattern comprise blind detection resources except the first blind detection pattern; or,

the second blind detection pattern is an independently defined blind detection pattern.

16. A network side device of a td-scdma system, comprising:

a blind detection sending unit, configured to send data, and send, by default, the data to be blind detected to user equipment according to a first blind detection pattern, where blind detection resources in the first blind detection pattern are discontinuously distributed in a unit of a specified period, where the specified period is a subframe or a frame or a transmission time interval; the network or the communication protocol configures the physical resources for the user equipment to perform blind detection in a specific specified period, which is called a blind detection mode;

the control unit is used for judging whether a first preset condition is met, and if so, indicating the blind test sending unit to send data needing blind test to the user equipment according to a second blind test pattern, wherein the blind test resources in the second blind test pattern comprise blind test resources except the first blind test pattern;

wherein the first predetermined condition is one or a combination of:

17. The network-side device of td-scdma system according to claim 16, wherein said entering the condition of improving the blind detection frequency state is one of:

18. The network-side device of td-scdma system according to claim 17, wherein said control unit is further configured to determine whether a second predetermined condition is met in a state where data requiring blind detection is sent to said ue according to a second blind detection pattern, and if so, instruct said blind detection sending unit to revert to sending the data requiring blind detection to the ue according to the first blind detection pattern; the second predetermined condition is one or a combination of:

after the second blind detection pattern is finished;

19. The network-side device of td-scdma system according to claim 18, wherein the duration of said second blind detection pattern is a limited predetermined value.

20. The network-side device of the td-scdma system according to claim 19, wherein the blind detection resources in the second blind detection pattern comprise all the blind detection resources in the first blind detection pattern; wherein,

21. A user equipment for a time division synchronous code division multiple access system, comprising:

a blind test receiving unit, configured to perform blind test on data from a network, and perform blind test on the data from the network according to a first blind test pattern in a default state, where blind test resources in the first blind test pattern are discontinuously distributed in a unit of a specified period, where the specified period is a subframe or a frame or a transmission time interval; the network or the communication protocol configures the physical resources for the user equipment to perform blind detection in a specific specified period, which is called a blind detection mode;

the control unit is used for judging whether a third preset condition is met, and if so, the control unit instructs the blind test receiving unit to carry out blind test on the data from the network according to a second blind test pattern, wherein the blind test resources in the second blind test pattern comprise blind test resources except the first blind test pattern; the third predetermined condition is one or a combination of:

22. The user equipment of time division synchronous code division multiple access system according to claim 21, wherein the entering the condition of the enhanced blind detection frequency state is one of:

23. The ue of td-scdma system according to claim 22, wherein said control unit is further configured to determine whether a fourth predetermined condition is met in a state of performing blind detection on data from the network according to the second blind detection pattern, and if so, instruct the blind detection receiving unit to resume performing blind detection on data from the network according to the first blind detection pattern; wherein the fourth predetermined condition is one or a combination of:

after the second blind detection pattern is finished;