WO2013177793A1

WO2013177793A1 - Method and device for realizing feedback information repeat under multi-flow transmission

Info

Publication number: WO2013177793A1
Application number: PCT/CN2012/076383
Authority: WO
Inventors: 汪凡; 王宗杰
Original assignee: 华为技术有限公司
Priority date: 2012-06-01
Filing date: 2012-06-01
Publication date: 2013-12-05
Also published as: CN103609054B; CN103609054A

Abstract

The embodiments of the present invention relate to a method and device for realizing feedback information repeat under multi-flow transmission. A method for realizing feedback information repeat under multi-flow transmission comprises: obtaining a repeat factor of feedback information repeat of a cell in a multi-flow transmission mode; and after a high speed downlink shared channel (HS-DSCH) is received, according to the repeat factor, adjusting the timing of the feedback information repeat so as to feed back a high speed dedicated physical channel (HS-DPCCH) to the cell at the timing. Therefore, the embodiments of the present invention enable different node Bs to correctly decode feedback information repeat by scheduling matching when UE operates in a multi-flow transmission mode and is configured to perform feedback information repeat, and then successfully resolve an HS-DPCCH.

Description

Method and device for realizing feedback information repetition under multi-stream transmission

The present invention relates to the field of communications technologies, and in particular, to a method and apparatus for implementing feedback information repetition in a Multi-Flow Transmission (MF-Tx) state. Background technique

In the Rll version of the 3rd Generation Partnership Project (3GPP) Wide-band Code Division Multiple Access (WCDMA) system, multiple cells are allowed to simultaneously simultaneously to user equipment (User Equipment, UE). High-speed packet access (HSPA) data is sent to improve the throughput of the edge UE and the downlink throughput performance of the cell.

The HSPA data supports multi-stream transmission in the R11 version, that is, the UE can receive a High Speed Downlink Shared Channel (HS-DSCH) from multiple cells at the cell edge. Correspondingly, the UE transmits a positive acknowledgement Acknowledgement, ACK) and/or a Channel Quality Indication (CQI) to each cell to feed back a High Speed Dedicated Physical Control Channel (HS-DPCCH). Generally, the UE uses the joint feedback to feed back the HS-DPCCH, where the joint feedback includes ACK or Non-Acknowledgement (NACK) or Discontinuous Transmission (DTX) joint coding that is respectively fed back to each cell to obtain a unified coding. Information to transmit the joint feedback with unified coding information to each cell.

Specifically, ACK and/or CQI are transmitted on the HS-DPCCH. For example, the UE may transmit ACK or NACK or DTX through 1 bit, and may also transmit combined coding of ACK, NACK, and DTX using a 10-fold repetition code. For power limited scenarios, the UE can also support ACK repetition. If the UE supports ACK repetition [assuming repeated transmission of N times ACK, combined coding of NACK and DTX), it means that the UE cannot continuously receive the HS-DSCH, but the transmission time interval of every two HS-DSCHs (Transmission Time Interval) At least (Nl) subframes are idle between TTIs. In general, UEs in very large cells may apply ACK repetition, or UEs in soft handover scenarios may also apply ACK repetition. Since the uplink power of the UE is controlled by multiple cells, if the serving cell link condition is not the best, the power of the HS-DPCCH may not be sufficient to support the UE to correctly receive the HS-DPCCH, and the UE can only use the ACK repetition. Similar to ACK repetition, the UE can also apply CQI. Repeat to reduce the transmit power to increase coverage. It is more effective for the UE to use the ACK repetition and/or the CQI repetition to receive a multi-stream transmission scenario with higher quality requirements in the HS-DPCCH.

Multi-stream transmission is different from single-stream transmission, and HS-DPCCH needs to be received by all participating Node Bs (Node Bs). Typically, the application scenario of the multi-stream transmission is a scenario in which the UE is in the relationship between the Node Bs, for example, the scenario in which the UE is between the two Node Bs. This also means that the HS-DPCCH is not only received by the most powerful Node B (usually the serving cell), but also by other Node Bs that are not the strongest.

Currently, the feedback information repetition (including ACK repetition and/or CQI repetition) is supported by the physical layer protocol, and the UE can use the feedback information repetition to solve the problem that the Node B cannot detect the HS-DPCCH in its power limited scenario. Simultaneously. The use of feedback information repetition by the UE can also reduce the transmission power of the HS-DPCCH transmitted on a single TTI, thereby reducing uplink interference.

However, in the current physical layer, when the UE repeats the feedback information for multi-stream transmission, the Node B will be from a higher layer (for example, a Base Station Controller (BSC) or a Radio Network Controller (Radio Network Controller, RNC)) Obtain the feedback information repetition factor of the cell, but do not know the feedback information repetition factor of other paired cells. Therefore, when the UE uses joint coding, Node B cannot resolve the HS-DPCCH because it does not know the feedback information repetition factor. Summary of the invention

The invention provides a method and a device for scheduling feedback information repetition under multi-stream transmission, and aims to solve the problem that different nodes B cannot parse the HS-DPCCH when the UE works in the multi-stream transmission mode and is configured to repeat feedback information.

On the one hand, a method for implementing feedback information repetition under multi-stream transmission is proposed, which includes: acquiring a repetition factor of repeated feedback information of a cell in a multi-stream transmission mode; after receiving the HS-DSCH, repeating the data according to the repetition And adjusting a timing of the repetition of the feedback information to feed back the HS-DPCCH to the camping cell at the timing.

On the other hand, a method for implementing feedback information repetition in multi-stream transmission is proposed, which includes: acquiring a first repetition factor of feedback information of the local cell; and scheduling a user equipment UE according to the first repetition factor, where the UE Working in a multi-stream transmission mode and configured in a state in which feedback information is repeated, and the local cell is a multi-stream transmission cell configured by the UE; receiving feedback information of the user equipment UE for HS-DPCCH feedback at a specific timing.

Another invention proposes a method for implementing feedback information repetition under multi-stream transmission, including: And taking one or more repetition factors of the feedback information of the feedback information of the local cell and the feedback information of one or more neighboring cells; scheduling the user according to the first repetition factor and the one or more repetition factors a device UE, where the UE operates in a multi-stream transmission mode and is configured in a state in which feedback information is repeated, and the local cell and the one or more neighboring cells are respectively configured by the UE for multi-stream transmission; The feedback information for the HS-DPCCH feedback of the user equipment UE is received at a specific timing.

On the other hand, an apparatus for implementing feedback information repetition under multi-stream transmission is provided, including: a first acquiring unit, configured to acquire a repetition factor of repeated feedback information of a cell in a multi-stream transmission mode; and an adjusting unit, configured to: After receiving the HS-DSCH, adjusting the timing of the repetition of the feedback information according to the repetition factor, so as to feed back the HS-DPCCH to the camping cell at the timing.

On the other hand, an apparatus for implementing feedback information repetition in a multi-stream transmission is provided, including: a second obtaining unit, configured to acquire a first repetition factor of feedback information of the current cell, or obtain a first feedback information of the local cell a repetition factor and one or more repetition factors of the feedback information of one or more neighboring cells; a scheduling unit, configured to: according to the first repetition factor, or according to the first repetition factor and the one or a plurality of repetition factors, the user equipment UE is scheduled, wherein the UE operates in a multi-stream transmission mode and is configured in a state in which feedback information is repeated, and the local cell and the one or more neighboring cells are respectively configured for the UE. a multi-streaming cell; a receiving unit, configured to receive feedback information of the user equipment UE for HS-DPCCH feedback at a specific timing.

The embodiment of the present invention enables the different node B to correctly decode the feedback information by scheduling matching when the UE works in the multi-stream transmission mode and is configured to repeat the feedback information, and then successfully parses the HS-DPCCH. DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the present invention, Those skilled in the art can also obtain other drawings based on these drawings without paying any creative work.

1 is a flow chart of a method for implementing feedback information repetition under multi-stream transmission according to an embodiment of the present invention.

2 is a flow chart of a method for implementing feedback information repetition under multi-stream transmission according to an embodiment of the present invention. 3 is a flow chart of a method for implementing feedback information repetition under multi-stream transmission according to an embodiment of the present invention.

4 is a schematic structural diagram of an apparatus for implementing feedback information repetition under multi-stream transmission according to an embodiment of the present invention.

FIG. 5 is a schematic structural diagram of an apparatus for implementing feedback information repetition under multi-stream transmission according to an embodiment of the present invention. detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are a part of the embodiments of the present invention, and not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without making creative labor are within the scope of the present invention.

The technical solution of the present invention can be applied to various communication systems, such as: Global System of Mobile Communication (GSM), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access ( WCDMA, Wideband Code Division Multiple Access Wireless), General Packet Radio Service (GPRS), Long Term Evolution (LTE), etc.

The UE may also be called a mobile terminal, a mobile station, or the like, and may communicate with one or more core networks via a radio access network (e.g., RAN, Radio Access Network). The user equipment exchanges voice and/or data with the wireless access network.

The base station may be a base station (BTS, Base Transceiver Station) in GSM or CDMA, or may be a base station (OFDM B) in WCDMA, or may be an evolved base station (eNB or e-NodeB, evolutional Node B) in LTE. The present invention is not limited, but for convenience of description, the following embodiments are described by taking Node B as an example. In addition, a base station may support/manage one or more cells. When the UE needs to communicate with the network, it will select a cell to initiate network access.

The flow of a method for implementing feedback information repetition under multi-stream transmission according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings. As shown in Figure 1, the following steps are included.

11. The UE acquires a repetition factor of repeated feedback information of the cell in the multi-stream transmission mode. In general, the UE may acquire a repetition factor of repeated feedback information of multiple cells. In addition, the UE may acquire a paired subframe relationship between the cells, that is, obtain a paired subframe in which the feedback information of the cell in the multi-stream transmission mode is repeated. In general, the repetition factor and the paired subframe can be RNC or BSC Issued to the UE. Alternatively, when the repetition factors of all cells in the system are equal by default, it is only necessary to obtain a repetition factor of repeated feedback information of one cell.

After receiving the HS-DSCH, the UE adjusts the timing of the repetition of the feedback information according to the repetition factor, so as to feed back the HS-DPCCH to the cell in the time.

For example, after receiving the HS-DSCH, the UE adjusts the timing of the repetition of the feedback information according to the repetition factor, so that the HS-DPCCH can be fed back to the camping cell according to the pairing subframe at the timing.

After the UE receives the HS-DSCH, the timing of the repetition of the feedback information adjusted according to the repetition factor is delayed relative to the multi-stream transmission mode and configured at a time point of the feedback HS-PDCCH when the non-feedback information is repeated, the UE is delayed by a predetermined time, the UE And feeding back the HS-DPCCH to the cell according to the pairing subframe. Here, the predetermined time is a time difference between a last subframe in a subframe unit that receives the HS-DSCH and a subframe in which the HS-DSCH is received, wherein the subframe unit includes a subframe equal to a repetition factor.

Or, after the UE receives the HS-DSCH, adjust the timing of the repetition of the feedback information according to the repetition factor, so as to feed back the HS-DPCCH to the cell in the timing, according to the repetition. The timing of the feedback information repetition of the factor adjustment is a multi-stream transmission mode based on the time reference subframe and is configured at a time point of the feedback HS-DPCCH when the non-feedback information is repeated, wherein the time reference subframe is the received HS- The last subframe in the subframe unit in which the subframe of the DSCH is located, the subframe unit includes a subframe equal to the repetition factor.

The time point of the feedback HS-PDCCH in the multi-stream transmission mode and configured when the non-feedback information is repeated is, for example, 7.5 slots (equal to 5 milliseconds;).

Therefore, in the embodiment of the present invention, when the UE works in the multi-stream transmission mode and is configured to repeat the feedback information, different Node Bs correctly decode the feedback information by scheduling matching, and then successfully parse the HS-DPCCH.

The feedback information repetition includes ACK repetition and CQI repetition. A specific embodiment in which ACK repetition is taken as an example will be described below.

As described above, in the multi-stream transmission MF-Tx configuration ACK repetition, if the UE operates in the multi-stream transmission mode between inter-NodeBs, the UE adjusts the timing of the ACK repetition including the following steps.

First, the first node B and the second node B are notified by the upper layer (for example, the RNC) of the repetition factor of the ACK repetition of the respective serving cell, and the repetition factor of each cell is the same but not 1 (denoted as N_acknack_transmit ). Moreover, the UE is also notified or through some algorithm to know the subframe pairing relationship of the two cells of the MF-Tx. In general, user equipments of multiple cells participating in multi-stream transmission need to simultaneously detect downlink data in a paired subframe.

Thereafter, when the UE detects the HS-DSCH, the TTI is used as the time reference subframe and the HS-DPCCH is fed back through a fixed time relationship (for example, 7.5 time slots, equal to 5 milliseconds), instead of the non-feedback information repetition, but The HS-DPCCH is fed back by a fixed time relationship when a certain TTI is delayed and then repeated using non-feedback information.

Specifically, the first node B and the second node B are notified by the higher layer of the repetition factor of the ACK repetition of the respective serving cells, for example, the repetition factor is 3. The UE may also obtain the repetition factor from the upper layer, and be informed by a signal or by some algorithm that the subframe pairing relationship of the two cells of the multi-stream transmission (ie, the serving cell of the first node B and the second node B) is The 0th subframe and the 0th subframe are paired, and the timings of the two cells are completely the same. At this time, the UE feeds back the HS-DPCCH in such a manner that the UE always uses 3 ΤΉ as one time unit, and in each time unit with 3 TTIs, regardless of which TTI the UE receives the HS-DSCH, its ACK The repetition uses the last TTI in the time unit as a time reference, and then feeds back the HS-DPCCH according to a fixed time (for example, about 7.5 time slots, equal to 5 milliseconds) when the non-feedback information is repeated.

Correspondingly, the flow of the method for implementing feedback information repetition in the multi-stream transmission according to the embodiment of the present invention is shown in FIG. 2, and includes the following steps.

21: The base station acquires a first repetition factor of the feedback information of the local cell.

At this time, the communication system defaults that the repetition factors of the feedback information of all the cells are the same, and the base station only needs to obtain the first repetition factor of the feedback information of the own serving cell from the upper layer, and then can determine the specific timing of the scheduling UE in the subsequent steps.

22. The base station schedules the user equipment UE according to the first repetition factor. Here, the UE operates in a multi-stream transmission mode and is configured in a state in which feedback information is repeated, and the cell is a multi-stream transmission cell configured by the UE.

23. The base station receives the feedback information of the user equipment UE for HS-DPCCH feedback at a specific timing.

Here, the specific timing is delayed by a predetermined time with respect to the multi-stream transmission mode and configured at the time point of the feedback HS-PDCCH when the non-feedback information is repeated.

Assuming that the first repetition factor is N, the predetermined time is the time difference between the last subframe in the subframe unit that receives the HS-DSCH and the subframe in which the HS-DSCH is received, where the subframe unit includes the number The target is equal to the sub-frame of the repetition factor. It can be seen that the predetermined time may be one of 0 subframes to (N-1) subframes.

In addition, the embodiment of the present application further provides the following method for scheduling feedback information repetition.

Alternatively, in a period of the first repetition factor subframe, the base station may schedule the user equipment UE on the paired subframe.

However, if the repetition factor of the feedback information of each cell in the communication system is not completely the same, the base station needs to obtain the repetition of the feedback information of the neighboring cell from the upper layer in addition to the first repetition factor of the feedback information of the serving cell. factor.

In another embodiment, a flow of a method for implementing feedback information repetition in a multi-stream transmission according to an embodiment of the present invention is shown in FIG. 3, and includes the following steps.

31. The base station acquires a first repetition factor of feedback information of the local cell and one or more repetition factors of the feedback information of one or more neighboring cells.

32. The base station schedules a user equipment UE according to the first repetition factor and the one or more repetition factors, where the UE works in a multi-stream transmission mode and is configured in a state in which feedback information is repeated, and the local cell and the The one or more neighboring cells are respectively multi-stream transmission cells configured by the UE.

For example, in a time period determined according to the first repetition factor and the one or more repetition factors, the base station schedules the user equipment UE only in the time period determined by the first repetition factor.

Take the scenario of the simplest two cells as an example. a first repetition factor of the base station acquiring the feedback information of the local cell, and a second repetition factor of the feedback information of the neighboring cell, where the base station is only in the time period determined according to the first repetition factor and the one or more repetition factors The user equipment UE is scheduled in a time period determined by the first repetition factor.

If the first repetition factor is a multiple of the second repetition factor; in a time period determined according to the first repetition factor and the second repetition factor, the base station is only determined by the first repetition factor The user equipment UE is scheduled in the time period. If the second repetition factor is a multiple of the first repetition factor, in a time period determined according to the first repetition factor and the second repetition factor, the base station is respectively by the first repetition factor and The user equipment UE is scheduled in a time period determined by the second repetition factor. 33. The base station receives, at a specific timing, a feedback information repetition of the UE for feeding back the HS-DPCCH. In addition, in order to further reduce the transmit power of the UE, the feedback information may adopt a single cell format used in a single stream.

The scheme for the scheduling of Node B will still be described below with the specific embodiment of ACK repetition. Here, for convenience of description, only two nodes B are taken as an example for description. It should be understood that the method of the embodiment of the present invention is not limited to the case of two nodes B, but can be applied to the case of two or more nodes B.

In the case where the repetition factor of the ACK repetition of the two Node Bs is the same. The first node B and the second node B are notified by the upper layer of the repetition factor of the ACK repetition of the cell, and the repetition factor is the same as 1 (denoted as N_acknack_transmit). The first node B and the second node B can only be scheduled in a consistent manner. For example, the RNC determines that the subframe pairing relationship is (NO, N1), and the first node B can only perform scheduling every N-acknack-transmitted subframes at the time of NO, and the second node B can only transmit every N_acknack at the time of N1. The sub-frames are scheduled once.

In the case where the repetition factor of the ACK repetition of the two Node Bs is different. The RNC may configure the ACK repetition factor (for example, N_acknack_transmitO, N_acknack- transmitl) and its factor coefficient (for example, M, N) for the first node B and the second node B, respectively, where M and N are positive integers greater than or equal to 1. .

Thus, the first node B and the second node B can only be scheduled in a specific consistent manner. For example, the RNC determines that the subframe pairing relationship between the first node B and the second node B is (N0, Nl), then the first node B can only have a period of (M*N_acknack_transmitO+N*N_acknack_transmitl) every time from the NO time. Each _acknack_transmitO subframe in the inner (M*N_acknack_transmitO) subframe is scheduled once. The second node B can only be scheduled once every N1 (N*N_acknack_transmitl) in the period of N1 (N*N_acknack_transmitl) every Sf_acknack_transmitl subframe.

Alternatively, the first Node B may be arbitrarily scheduled in the preceding (M*N_acknack - transmitO) subframes, and the second Node B may be arbitrarily scheduled in the following (N*N_acknack_transmitl) subframes. Optionally, if _acknack_transmitO is a multiple of N_acknack_transmit1, the first node B can only be in the period of (M*N_acknack_transmit) for each length (M*N_acknack_transmit_) during each period of time (M*N_acknack_transmitO+N*N_acknack_transmitl) N_acknack_transmitO subframes are scheduled once. The second node B can perform scheduling once every N_acknack_transmitO subframes in the period (M*N_acknack_transmitO) of each period (N*N_acknack_transmit_) in the period of N1 (N*N_acknack_transmitl) subframes in the period of (M*N_acknack_transmitO+N*N_acknack_transmitl) Each N_acknack_transmitl subframe is scheduled once.

In addition, if the ACK repetition is implemented in the UE, if the HS-DPCCH is fed back in a single cell format in a single stream, the UE transmission power can be further reduced. Especially in the scenario where the repetition factor is not the same, only one cell schedules the UE at the same time, and then using the single cell format to feed back the HS-DPCCH will more effectively reduce the UE transmit power.

Although the above embodiments are all described by taking ACK repetition as an example, it can be understood that it can also be applied to a scene in which CQI is repeated.

An apparatus for implementing feedback information repetition under multi-stream transmission according to an embodiment of the present invention will be described below with reference to FIGS. 4 and 5.

As shown in FIG. 4, the apparatus 40 for implementing feedback information repetition under multi-stream transmission includes a first acquisition unit 41 and an adjustment unit 42. The first obtaining unit 31 is configured to acquire a repetition factor of the feedback information of the cell in the multi-stream transmission mode. The adjusting unit 32 is configured to adjust a timing of the repetition of the feedback information according to the repetition factor after receiving the HS-DSCH, so as to feed back the HS-DPCCH to the cell in the timing.

In addition, the first obtaining unit 41 may be further configured to acquire a paired subframe in which the feedback information of the cell in the multi-stream transmission mode is repeated, so that the adjusting unit 42 may perform the repetition after receiving the high-speed downlink shared channel HS-DSCH. And adjusting a timing of the repetition of the feedback information, so as to feed back the high-speed dedicated physical control channel HS-DPCCH to the camping cell according to the pairing subframe at the timing.

Specifically, the adjusting unit 42 is configured to adjust, according to the repetition factor, the timing at which the feedback information is repeated with respect to the multi-stream transmission mode and the time point of the feedback HS-PDCCH configured when the non-feedback information is repeated is delayed by a predetermined time. The predetermined time is the time difference between the last subframe in the subframe unit that receives the HS-DSCH and the subframe in which the HS-DSCH is received, where the subframe unit includes the number equal to The sub-frame of the repetition factor.

Optionally, the timing that the adjusting unit 42 uses to repeat the feedback information adjusted according to the repetition factor is a multi-stream transmission mode based on a time reference subframe and is configured at a time point of feedback HS-DPCCH when the non-feedback information is repeated. The time reference subframe is the last subframe in the subframe unit in which the subframe in which the HS-DSCH is received, and the subframe unit includes a subframe equal to the repetition factor.

As shown in FIG. 5, the apparatus 50 for implementing feedback information repetition under multi-stream transmission includes a second acquisition unit 51, a scheduling unit 52, and a receiving unit 53. The second obtaining unit 51 is configured to acquire a first repetition factor of the feedback information of the local cell, or obtain one or more of the first repetition factor of the feedback information of the local cell and the feedback information of one or more neighboring cells. Repeat factor. The scheduling unit 52 is configured to schedule the user equipment UE according to the first repetition factor, or according to the first repetition factor and the one or more repetition factors, where the UE works in a multi-stream transmission mode and is configured in feedback The state in which the information is repeated, and the local cell or the one or more neighboring cells are respectively multi-stream transmission cells configured by the UE. The receiving unit 53 is configured to receive, at a specific timing, a feedback information repetition of the user equipment UE for feeding back the HS-DPCCH.

In the above, the specific timing is delayed by a predetermined time with respect to the multi-stream transmission mode and at the time point of the feedback HS-PDCCH when the non-feedback information is repeated. The predetermined time is the time difference between the last subframe in the subframe unit receiving the HS-DSCH and the subframe in which the HS-DSCH is received, wherein the subframe unit includes a subframe having a number equal to the repetition factor.

Optionally, when one or more repetition factors are equal to the first repetition factor, the scheduling unit 52 is configured to schedule the user equipment UE on the pairing subframe in the time period of the first repetition factor subframe.

Optionally, when one or more repetition factors are not equal to the first repetition factor, the scheduling unit 52 is specifically configured to: in the time period determined according to the first repetition factor and the one or more repetition factors, only The user equipment UE is scheduled in a time period determined by the first repetition factor.

For example, the second obtaining unit 51 is specifically configured to acquire a first repetition factor of the feedback information of the local cell, and a second repetition factor of the feedback information of the neighboring cell, where the first repetition factor is the second repetition A multiple of the factor. The scheduling unit 52 is specifically configured to be according to the first repetition In the time period determined by the factor and the second repetition factor, the user equipment UE is scheduled only in the time period determined by the first repetition factor.

For example, the second obtaining unit 51 is specifically configured to acquire a first repetition factor of the feedback information of the local cell, and a second repetition factor of the feedback information of the neighboring cell, where the second repetition factor is the first repetition A multiple of the factor. The scheduling unit 52 is specifically configured to schedule users in a time period determined by the first repetition factor or the second repetition factor, respectively, in a time period determined according to the first repetition factor and the second repetition factor Device UE.

It should be understood that the aspects described in each of the claims of the present invention are also considered to be an embodiment, and the features of the claims may be combined, as the steps of the different branches of the execution after the determining step in the present invention. It can be used as a different embodiment.

Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in a combination of electronic hardware or computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.

A person skilled in the art can clearly understand that the specific working process of the system, the device and the unit described above can be referred to the corresponding process in the foregoing method embodiments for the convenience and brevity of the description, and details are not described herein again.

In the several embodiments provided herein, it should be understood that the disclosed systems, devices, and methods may be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed. In addition, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical, mechanical or otherwise.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. You can choose some of them according to actual needs or All units are used to achieve the objectives of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

The functions, such as those implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including The instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like, which can store program codes. .

The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the claims.

Claims

Rights request

1. A method for realizing repetition of feedback information under multi-stream transmission, which is characterized by: obtaining a repetition factor for repetition of feedback information of the cell under multi-stream transmission mode; after receiving the high-speed downlink shared channel HS-DSCH, According to the repetition factor, the timing at which the feedback information is repeated is adjusted so that the high-speed dedicated physical control channel HS-DPCCH is fed back to the cell at the timing.

2. The method according to claim 1, further comprising:

Acquire the paired subframes in which the feedback information of the cell where the cell is located is repeated in the multi-stream transmission mode; after receiving the high-speed downlink shared channel HS-DSCH, adjust the timing of the feedback information repetition according to the repetition factor so that the feedback information is repeated in the multi-stream transmission mode. The timing of feedback of the high-speed dedicated physical control channel HS-DPCCH to the cell includes:

After receiving the high-speed downlink shared channel HS-DSCH, adjust the timing of repeating the feedback information according to the repetition factor, so that the high-speed dedicated physical control channel HS is fed back to the cell at the timing according to the paired subframe. -DPCCH.

3. The method according to claim 1 or 2, characterized in that, adjusting the timing of repetition of the feedback information according to the repetition factor includes:

The timing of repetition of the feedback information adjusted according to the repetition factor is delayed by a predetermined time relative to the time point of feedback HS-PDCCH configured in the multi-stream transmission mode when non-feedback information is repeated.

4. The method according to claim 3, characterized in that the predetermined time is when the

The time difference between the last subframe in the subframe unit of HS-DSCH and the subframe in which the HS-DSCH is received, where the subframe unit includes a number of subframes equal to the repetition factor.

5. The method according to claim 1 or 2, characterized in that, adjusting the timing of repetition of the feedback information according to the repetition factor includes:

The timing of feedback information repetition adjusted according to the repetition factor is a multi-stream transmission mode based on a time reference subframe and configured at a time point of feedback HS-DPCCH when feedback information is not repeated, where the time reference subframe is The last subframe in the subframe unit in which the HS-DSCH subframe is received, and the subframe unit includes a number of subframes equal to the repetition factor.

6. A method for realizing feedback information repetition under multi-stream transmission, which is characterized by: obtaining the first repetition factor of the feedback information of this cell;

According to the first repetition factor, schedule user equipment, where the user equipment works in multi-stream The transmission mode is configured in a state where feedback information is repeated, and the current cell is a multi-stream transmission cell configured by the user equipment;

The feedback information for feedback HS-DPCCH received from the user equipment at specific timing is repeated.

7. The method according to claim 6, wherein the specific timing is delayed by a predetermined time relative to the time point of feedback HS-PDCCH configured in multi-stream transmission mode when non-feedback information is repeated.

8. The method according to claim 7, wherein the predetermined time is the time difference between the last subframe in the subframe unit in which the HS-DSCH is received and the subframe in which the HS-DSCH is received, wherein the subframe A frame unit includes a number of subframes equal to the repetition factor.

9. The method according to claim 6, wherein the scheduling of user equipment according to the first repetition factor includes:

In the time period of the first repetition factor subframe, the user equipment is scheduled on the paired subframe

UE.

10. The method according to any one of claims 6 to 9, characterized in that the feedback information includes ACK and CQI.

11. A method for realizing repetition of feedback information under multi-stream transmission, characterized by: obtaining a first repetition factor of the feedback information of the current cell and one or more repetitions of the feedback information of one or more neighboring cells. factor;

Scheduling user equipment according to the first repetition factor and the one or more repetition factors, wherein the user equipment operates in a multi-stream transmission mode and is configured in a state of repeated feedback information, and the local cell and the one Or multiple neighboring cells are cells configured for multi-stream transmission by the user equipment;

Feedback information for feedback of the high-speed dedicated physical control channel HS-DPCCH from the user equipment is repeatedly received at specific timing.

12. The method according to claim 11, wherein the scheduling of user equipment according to the first repetition factor and the one or more repetition factors includes:

In the time period determined according to the first repetition factor and the one or more repetition factors, the user equipment is scheduled only in the time period determined by the first repetition factor.

13. The method according to claim 12, characterized in that,

The first repetition factor for obtaining the feedback information of the current cell and the one or more repetition factors of the feedback information of one or more neighboring cells include: Obtaining the first repetition factor of the feedback information of the current cell and the second repetition factor of the feedback information of a neighboring cell, wherein the first repetition factor is a multiple of the second repetition factor; A repetition factor and the one or more repetition factors scheduling user equipment include:

In the time period determined according to the first repetition factor and the second repetition factor, the user equipment is scheduled only in the time period determined by the first repetition factor.

14. The method according to claim 12, characterized in that,

The first repetition factor for obtaining the feedback information of the current cell and the one or more repetition factors of the feedback information of one or more neighboring cells include:

Obtaining the first repetition factor of the feedback information of the current cell and the second repetition factor of the feedback information of a neighboring cell, wherein the second repetition factor is a multiple of the first repetition factor; A repetition factor and the one or more repetition factors scheduling user equipment include:

In the time period determined according to the first repetition factor and the second repetition factor, the user equipment is scheduled in the time period determined by the first repetition factor and the second repetition factor respectively.

15. The method according to any one of claims 11 to 14, characterized in that the feedback information adopts a single-cell format for a single stream.

16. The method according to any one of claims 11 to 15, characterized in that the feedback information includes ACK and CQI.

17. A device for repeating feedback information under multi-stream transmission, characterized by comprising: a first acquisition unit, used to obtain a repetition factor for repeating feedback information of the cell in multi-stream transmission mode;

The adjustment unit is configured to, after receiving the high-speed downlink shared channel HS-DSCH, adjust the timing at which the feedback information is repeated based on the repetition factor, so as to feed back the HS-DPCCH to the cell at the timing.

18. The device according to claim 17, characterized in that the first acquisition unit is also used to:

Obtain paired subframes in which the feedback information of the cell where the cell is located is repeated in the multi-stream transmission mode; the adjustment unit is configured to adjust the timing of repetition of the feedback information based on the repetition factor after receiving the high-speed downlink shared channel HS-DSCH. , so that at the timing according to the pairing The subframe feeds back HS-DPCCH to the cell where it is located.

19. The device according to claim 17 or 18, characterized in that the adjustment unit is specifically used for:

The timing of repetition of the feedback information is adjusted according to the repetition factor and delayed by a predetermined time relative to the time point of feedback HS-PDCCH configured in the multi-stream transmission mode when non-feedback information is repeated.

20. The apparatus according to claim 19, wherein the predetermined time is the time difference between the last subframe in the subframe unit in which the HS-DSCH is received and the subframe in which the HS-DSCH is received, wherein the subframe A frame unit includes a number of subframes equal to the repetition factor.

21. The device according to claim 17 or 18, characterized in that the adjustment unit is specifically used for:

22. A device for realizing repetition of feedback information under multi-stream transmission, characterized in that it includes: a second acquisition unit, used to acquire the first repetition factor of the feedback information of this cell, or the first repetition factor of the feedback information of this cell. a repetition factor and one or more repetition factors of the feedback information of one or more neighboring cells;

a scheduling unit, configured to schedule user equipment according to the first repetition factor, or according to the first repetition factor and the one or more repetition factors, wherein the user equipment works in a multi-stream transmission mode and is configured in a feedback mode The information is in a repeated state, and the local cell or the one or more neighboring cells are cells configured for multi-stream transmission by the user equipment;

The receiving unit is configured to receive repeated feedback information of the user equipment for feeding back the high-speed dedicated physical control channel HS-DPCCH at a specific timing.

23. The apparatus according to claim 22, wherein the specific timing is delayed by a predetermined time relative to the time point of feedback HS-PDCCH configured in multi-stream transmission mode and when non-feedback information is repeated.

24. The apparatus according to claim 23, wherein the predetermined time is the time difference between the last subframe in the subframe unit in which the HS-DSCH is received and the subframe in which the HS-DSCH is received, wherein the subframe A frame unit includes a number of subframes equal to the repetition factor.

25. The device according to claim 22, characterized in that, the one or more repeating The factor is equal to the first repetition factor; the scheduling unit is specifically configured to: in the time period of the first repetition factor subframe, schedule the user equipment on the paired subframe

UE.

26. The device according to claim 22, wherein the one or more repetition factors are not equal to the first repetition factor, and the scheduling unit is specifically used to:

27. The device according to claim 26, characterized in that,

The second acquisition unit is specifically used for:

Obtain the first repetition factor of the feedback information of the current cell and the second repetition factor of the feedback information of a neighboring cell, where the first repetition factor is a multiple of the second repetition factor; the scheduling unit specifically uses: At:

28. The device according to claim 26, characterized in that,

The second acquisition unit is specifically used for:

Obtain the first repetition factor of the feedback information of the current cell and the second repetition factor of the feedback information of a neighboring cell, where the second repetition factor is a multiple of the first repetition factor; the scheduling unit is specifically used: At:

In the time period determined by the first repetition factor and the second repetition factor, the user equipment is scheduled in the time period determined by the first repetition factor and the second repetition factor respectively.