WO2011038631A1

WO2011038631A1 - Transmission method, transmitting and receiving devices for high speed shared control channel information

Info

Publication number: WO2011038631A1
Application number: PCT/CN2010/076618
Authority: WO
Inventors: 林伟; 耿鹏; 马毅华
Original assignee: 中兴通讯股份有限公司
Priority date: 2009-09-30
Filing date: 2010-09-03
Publication date: 2011-04-07
Also published as: CN102036303B; CN102036303A

Abstract

The present invention discloses a high speed shared control channel information transmission method, which includes that: a base station pre-determines the frame structure, which should be adopted when information is transmitted on the high speed shared control channel (HS-SCCH), corresponding to different transmission modes on the high speed physical downlink shared channel (hs-pdsch); at first, the base station determines the transmission mode suitable for the scheduled user on the HS-PDSCH to adopt during the scheduling process, then determines the frame structure which should be adopted when transmitting information on HS-SCCH, according to the corresponding relationship between the pre-determined transmission mode and the frame structure that should be adopted when transmitting information on HS-SCCH, and transmits HS-SCCH information based on the frame structure. The present invention discloses corresponding devices as well. The present invention can be compatible with transmitting control information in a non-multi-input-multi-output mode and a single-user multi-input-multi-output mode.

Description

High-speed shared control channel information transmission method and transmitting and receiving device

Technical field

The present invention relates to a Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) system, and more particularly to a TD-SCDMA system Multiple-Input Multiple-Out-put (MIMO) technology (including Single-user Multiple Input Multiple Output (SU-MIMO) and Multi-User Multiple Input Multiple Output (MU-MIMO) (High Speed-Shared Control Channel, HS-SCCH) information transmission method and transmitting and receiving device.

Background technique

SU-MIMO technology is a hot research field in the field of mobile communication in recent years, and it is characterized in that multiple antennas are introduced in both the wireless transmitter and the receiver. Compared with the traditional single input simple output (SISO) system, the SU-MIMO system achieves a huge increase in system capacity through space diversity technology or spatial multiplexing technology.

MU-MIMO technology uses different spatial divisions between different users to form different channels, so that users with certain spatial isolation can reuse the same physical resources, thereby achieving the purpose of increasing the capacity of the mobile communication network.

In the non-MIMO mode, according to the 3GPP protocol TS25.222, the composition of the downlink HS-SCCH is shown in FIG. 1, including: 8-bit channelization code set (CCS), 5-bit time slot position information (Time Slot) , TS), 1-bit modulation scheme (MS), 6-bit Transmission Block Size (TBS) information, 3-bit Hybrid Automatic Repeat ReQuest (HARQ) process identification (HARQ) , 3-bit Redundancy Version (RV) information, 1-bit New Data Indicator (NDI), 3-bit cyclic sequence number (HSCN), total 30 bits (see Figure 1) ), plus Cyclic Redundancy Check (CRC) check (including UE identification 16bits bundle), a total of 46bits, after 1/3 convolutional coding and rate matching, additional synchronization offset (Synchronisation Shift, SS And transmission power control (Transmission Power Control, TPC) Control bits 4 bits total 176 bits are mapped to two physical channels with a spreading factor of 16.

The MIMO mode includes a SU-MIMO mode and a MU-MIMO mode. In the SU-MIMO mode, when dual-stream transmission is performed, data transmission between the primary transport block (or stream 1) and the secondary transport block (or stream 2) is performed simultaneously. . Since the transmission of the data stream information is increased, the indication of the auxiliary stream transmission data stream information needs to be increased, and the existing HS-SCCH channel shown in FIG. 1 needs to be extended to meet the needs of the dual stream transmission in the SU-MIMO mode. Although the extension scheme of the HS-SCCH frame structure in the SU-MIMO mode is given in the prior art, the scheme is only adapted to the single-user SU-MIMO condition.

In the MU-MIMO mode, different users of the MU-MIMO system multiplex the same physical code channel resources, and the corresponding relationship between different (intermediate training sequence code) code words and spreading codes is required. In the existing user default mode, the training sequence code or the intermediate code (Midamble) codeword and the spreading code are the relationship of a set of K Midamble codewords corresponding to 16 spreading codes; and since the MU-MIMO system supports N Multiplier time-sharing, that is, when the N users are multiplexed with the same physical code channel resources, the Midamble codewords and relationships, that is, the correspondence between a group of Midamble codes and the spreading codes for each space-division user Therefore, the existing HS-SCCH shown in FIG. 1 needs to be extended to meet the requirements of transmitting control signaling in the MU-MIMO mode, and in consideration of compatibility, the frame structure of the extended HS-SCCH is not only satisfied by the MU- The need to transmit control signaling in MIMO mode also needs to meet the need to transmit control information in a non-MIMO mode and a single-user SU-MIMO mode. However, in the current HS-SCCH frame structure design, there is no extended design involving the HS-SCCH frame structure that satisfies the above requirements. Summary of the invention

The technical problem to be solved by the present invention is to provide a high-speed shared control channel information transmission method and a transmitting and receiving device to support data transmission in single-user and multi-user multiple-input multiple-output modes.

To solve the above technical problem, the present invention provides a method for transmitting high-speed shared control channel information, including:

The base station predetermines different transmission modes on the high speed physical downlink shared channel (HS-PDSCH) The frame structure that should be used when the high-speed shared control channel (HS-SCCH) transmits information, and the transmission modes supported by the HS-PDSCH include at least: a pure single-stream transmission mode, multi-user multiple input multiple output ( MU-MIMO) single stream transmission mode, or single-user multiple input multiple output (SU-MIMO) dual stream transmission mode;

In the scheduling process, the base station first determines a transmission mode suitable for the scheduling user on the HS-PDSCH, and then according to a predetermined transmission mode and a frame structure that should be used when transmitting information on the HS-SCCH. Determining a frame structure to be used for transmitting information on the HS-SCCH; transmitting HS-SCCH information according to the frame structure.

The step of determining, by the base station, a frame structure that should be used when the HS-SCCH transmits information corresponding to different transmission modes on the HS-PDSCH,

The frame structure to be used when the HS-SCCH transmits information includes a type-frame structure of 46 bits in length, and the pure single stream transmission mode and the MU-MIMO single stream transmission mode correspond to the same type of one frame structure; SU- The MIMO dual stream transmission mode corresponds to another type of one frame structure; or

The frame structure to be used when the HS-SCCH transmits information includes a type 2 frame structure of 50 bits length, and the pure single stream transmission mode and the MU-MIMO single stream transmission mode correspond to the same type of two frame structure, SU- The MIMO dual stream transmission mode corresponds to another type of two frame structure;

The base station selects a corresponding frame structure type according to the frame structure supported by the user terminal.

The transmission mode supported by the HS-PDSCH further includes a MU-MIMO dual stream transmission mode, and the MU-MIMO dual stream transmission mode and the SU-MIMO dual stream transmission mode correspond to the same type one frame structure or type two frame structure.

When the transmission mode of the base station on the HS-PDSCH is the pure single stream mode or the MU-MIMO single stream mode, in the transmitting step, the base station carries the following content in the frame sent by the HS-SCCH:

2-bit type flag (TypeFlag) flag information, used to identify the current HS-SCCH for pure single stream transmission mode or MU-MIMO single stream transmission mode; 5 bit slot position information (TS); 1 bit modulation mode information (MS 6-bit transport block size information (TBS); 3-bit HS-SCCH loop number information (HCSN); 2-bit redundancy version (RV) indication; 4-bit HARQ process identification; 1-bit FLAG flag information, used for identification Is it pure single stream transmission or MU-MIMO single Streaming; 6-bit channelization code set identification (CCS), when in pure single-stream transmission mode, all 6 bits of CCS are used to identify channelization code information CCS; when it is MU-MIMO single-stream transmission mode, CCS 2 The bits carry indication information for identifying the Midamble code group used by the user, and the remaining 4 bits are used to identify the code channel allocation information of the user.

When the transmission mode used by the base station on the HS-PDSCH is the SU-MIMO dual-stream mode, in the transmitting step, the base station carries the following content in the frame sent by the HS-SCCH:

2 bit type flag (TypeFlag) flag information, used to identify the current HS-SCCH for MIMO mode SU-MIMO dual stream transmission; 5-bit slot position information (TS); 1-bit modulation mode information (MS1), used to identify the main Modulation information of the transport block; 6-bit transport block size information (TBS1), transport block size information for identifying the primary transport block; 3-bit HARQ process identifier; 3-bit HS-SCCH loop sequence number information (HCSN); 4-bit redundancy The version (RV) indicates that 2 bits in the RV indication are used to characterize the primary block RV information, the other 2 bits are used to characterize the secondary block RV information; a 6-bit channelization code set identification (CCS), and 1 bit in the CCS is used to carry The modulation mode (MS2) of the secondary transport block in the dual stream mode, and the remaining bits are used to carry the TBS index offset (TBS2 offset) of the secondary transport block relative to the primary transport block in the dual stream mode.

When the transmission mode of the base station on the HS-PDSCH is the MU-MIMO dual-stream mode, in the transmitting step, the base station carries the following content in the frame sent by the HS-SCCH:

2 bit type flag (TypeFlag) flag information for identifying the HS-SCCH for MIMO mode MU-MIMO dual stream transmission; 5-bit slot position information (TS); 1-bit modulation mode information (MS1) for identifying MIMO Modulation information of the primary transport block in the dual stream mode; 6-bit transport block size information (TBS1) for identifying the transport block size information of the primary transport block in the MIMO dual stream mode; 3-bit HARQ process identification; 3-bit HS-SCCH cycle sequence number information (HCSN); 4-bit redundancy version (RV) indication, 2 bits in the RV indication are used to characterize the primary block RV information, and the other 2 bits are used to characterize the secondary block RV information; 6-bit channelization code set identification (CCS), CCS Medium: 1 bit is used to carry the modulation mode (MS2) of the secondary transport block in the dual stream mode, and the remaining bits are used to carry the TBS index offset (TBS2 offset) of the secondary transport block in the dual stream mode with respect to the primary transport block; Polarity reversal to identify air separation users.

When the transmission mode adopted by the base station on the HS-PDSCH is the pure single stream mode or the MU-MIMO single stream mode, in the transmitting step, the base station carries the following in the frame sent on the HS-SCCH Content:

5-bit time slot position information (TS); 1-bit modulation mode information (MS1); 6-bit transmission block size information (TBS1); 3-bit HARQ process identification; 3-bit HS-SCCH cycle number information (HCSN); 4-bit One channelization code set identification (CCS1); 2-bit second channelization code set identification (CCS2); 2-bit redundancy version indication (RV); 1-bit FLAG flag bit information, used to identify whether it is pure single stream transmission or MU - MIMO single stream transmission; 1 bit modulation mode information (MS2); 6 bit transmission block size information (TBS2); when in pure single stream transmission mode, CCS1 and CCS2 jointly identify channelization code set information; when MU-MIMO In the single-stream transmission mode, 2 bits of CCS2 are used to identify the indication information of the Midamble code group used by the user, and 4 bits of CCS1 are used to identify the code channel allocation information of the user.

When the transmission mode used by the base station on the HS-PDSCH is the SU-MIMO dual-stream mode or the MU-MIMO dual-stream mode, in the transmitting step, the base station carries the following content in the frame sent by the HS-SCCH:

5-bit time slot position information (TS); 1-bit modulation mode information (MS1) for identifying primary transmission block modulation mode information in MIMO dual stream mode; 6-bit transmission block size information (TBS1) for identifying dual stream in MIMO Primary transport block size information in the mode; 3-bit HARQ process identification; 3-bit HS-SCCH cycle sequence number information (HCSN); 4-bit redundancy version indication (RV), used to identify the RV of the primary and secondary transport blocks in the MIMO dual stream mode Version; 4-bit channelization code set identification (CCS1); 1-bit modulation mode information (MS2), which is used to identify the modulation mode information of the secondary transmission block; 6-bit transmission block size information (TBS2), which is used to identify the secondary transmission block. Transport block size information; 1-bit FLAG flag information, used to identify a dual-stream transmission mode in which the transmission mode is SU-MIMO dual-stream transmission mode or MU-MIMO; when in the SU-MIMO dual-stream transmission mode, 4 bits of CCS1 are used to identify User's code channel allocation information; When it is the dual stream transmission mode of MU-MIMO, 1 bit in CCS1 is used to identify the user's space division user number, and the remaining 2 bits are identified. Information.

In order to solve the above technical problem, the present invention further provides a transmitting apparatus for sharing control channel information at high speed, comprising a saving module, a frame structure determining module, and a sending module, wherein:

The saving module is configured to: store a predetermined high-speed physical downlink shared channel (HS-PDSCH), a high-speed shared control channel (HS-SCCH) frame corresponding to different transmission modes. The transmission modes supported by the HS-PDSCH include at least: a pure single stream transmission mode, a multi-user multiple input multiple output (MU-MIMO) single stream transmission mode, or a single user multiple input multiple output (SU-MIMO) dual stream. Transmission mode

The frame structure determining module is configured to: first determine, in the scheduling process, a transmission mode suitable for the scheduling user on the HS-PDSCH, and determine, according to the predetermined correspondence, that the information sent on the HS-SCCH should be used. Frame structure

The sending module is configured to: send HS-SCCH information according to the determined frame structure.

The frame structure determining module is set to:

The frame structure to be used when the HS-SCCH transmits the information includes a type 2 frame structure of a 50-bit length, and the pure single stream transmission mode and the MU-MIMO single stream transmission mode correspond to the same type of two frame structure, SU- The MIMO dual stream transmission mode corresponds to another type of two frame structure;

The frame structure determining module is further configured to: select a corresponding frame structure type according to a frame structure supported by the user terminal.

To solve the above technical problem, the present invention also provides a method for receiving high-speed shared control channel information, including:

The user terminal monitors the high-speed shared control channel (HS-SCCH), and demodulates the received HS-SCCH, and after determining that the information carried on the HS-SCCH is the information of the user, according to the identifier used in the frame The type information determines a frame structure type of the HS-SCCH transmission to determine a transmission mode used by the High Speed Physical Downlink Shared Channel (HS-PDSCH), and the transmission mode includes at least: a pure single stream transmission mode, Multi-user multiple input multiple output (MU-MIMO) single stream transmission mode, or single user multiple input multiple output (SU-MIMO) dual stream transmission mode. The transmission mode further includes: a MU-MIMO dual stream transmission mode.

The method further includes: the user terminal reading each field of the HS-SCCH frame according to the determined HS-SCCH frame structure type, and acquiring information carried by the HS-SCCH.

The method further includes: when determining that the transmission mode of the HS-PDSCH is the MU-MIMO single stream transmission mode, determining the Midamble code group used by the user according to the information in the frame.

In order to solve the above technical problem, the present invention further provides a receiving device for sharing control channel information at high speed, comprising a receiving module and a demodulating module, wherein:

The receiving module is configured to: monitor a high speed shared control channel (HS-SCCH), and receive an HS-SCCH;

The demodulation module is configured to: demodulate the received HS-SCCH, determine that the information carried on the HS-SCCH is the information of the user, and determine the information according to the identifier type in the frame. The frame structure type transmitted by the HS-SCCH to determine a transmission mode used by the High Speed Physical Downlink Shared Channel (HS-PDSCH), the transmission mode includes at least: a pure single stream transmission mode, multiple users and multiple inputs Output (MU-MIMO) single stream transmission mode, or single user multiple input multiple output (SU-MIMO) dual stream transmission mode.

The transmission mode further includes: a MU-MIMO dual stream transmission mode.

The demodulation module is further configured to: when determining that the transmission mode used by the HS-PDSCH is the MU-MIMO single stream transmission mode, determine the Midamble code group used by the user according to the information in the frame.

The transmission control information based on the frame structure of the extended HS-SCCH can satisfy the requirement of transmitting control signaling in the MU-MIMO mode, and can be compatible with the non-MIMO mode and the single-user SU-MIMO mode to transmit control information. BRIEF abstract

1 is a schematic diagram of a HS-SCCH structure TYPE1 in an existing HSDPA system; 2 is a schematic diagram of a HS-SCCH structure TYPE2-A for single-stream transmission in a MIMO mode; FIG. 3 is a schematic diagram of a configuration of TYPE2-A in a pure single-stream mode;

Figure 4 is a schematic diagram of the configuration of TYPE2-A in MU-MIMO single stream mode;

5 is a schematic diagram of an HS-SCCH structure TYPE2-B for SU-MIMO dual stream transmission in MIMO mode;

6 is a schematic diagram of an HS-SCCH structure TYPE2-C of MU-MIMO dual stream transmission in MIMO mode;

7 is a schematic diagram of a HS-SCCH structure TYPE3-A for single-stream transmission in a MIMO mode; FIG. 8 is a schematic diagram of a HS-SCCH structure TYPE3-B for dual-stream transmission in a MIMO mode; FIG. 9 is a base station end of a transmitting end embodiment 1 in a MIMO mode. Transmit HS-SCCH TYPE2 channel processing flow chart;

10 is a flowchart of processing of a base station-side transmitting HS-SCCH TYPE2 channel in a MIMO mode in a transmitting end embodiment 2;

11 is a flowchart of processing of a base station-side transmitting HS-SCCH TYPE3 channel in a MIMO mode in a transmitting end embodiment 3;

12 is a flowchart of processing of a base station-side transmitting HS-SCCH TYPE3 channel in a MIMO mode in a transmitting end embodiment 4;

13 is a flowchart of processing of receiving and demodulating a HS-SCCH TYPE2 channel in a MIMO mode in a receiving end embodiment 1;

14 is a flowchart of processing of receiving and demodulating a HS-SCCH TYPE2 channel in a MIMO mode in a receiving end embodiment 2;

15 is a flowchart of processing of receiving and demodulating a HS-SCCH TYPE3 channel in a MIMO mode in a receiving end embodiment 3;

16 is a flowchart of a process of receiving a demodulated HS-SCCH TYPE3 channel in a MIMO mode in the receiving end embodiment 4. Preferred embodiment of the invention In a TD-SCDMA system introducing Multiple Input Multiple Output (MIMO) technology (including SU-MIMO and MU-MIMO), a downlink HS-SCCH control channel information transmission method is provided for two HS-SCCH frame structures, respectively. The two HS-SCCH frame structures are: a) MIMO type one, 46-bit frame length structure type; b) MIMO type two, 50-bit frame length structure type.

The main object of the present invention is to provide a method and system for transmitting control information of an extended control channel, and the frame structure transmission control information of the extended HS-SCCH can meet the requirement of transmitting control signaling in the MU-MIMO mode, and is compatible. The need to transmit control information in non-MIMO mode and single-user SU-MIMO mode.

The inventive concept of the present invention is: The base station predetermines when the high-speed shared downlink control channel (HS-SCCH) transmits information on the high-speed shared control channel (HS-SCCH) corresponding to different transmission modes on the high-speed physical downlink shared channel (HS-PDSCH) The frame structure to be used, the supported transmission modes on the HS-PDSCH include at least: pure single stream transmission mode, multi-user multiple input multiple output (MU-MIMO) single stream transmission mode, single user multiple input multiple output (SU) - MIMO) dual-stream transmission mode; in the scheduling process, the base station first determines a transmission mode suitable for the scheduled user on the HS-PDSCH, and then determines the information to be sent on the HS-SCCH according to the predetermined correspondence relationship. Frame structure used; The HS-SCCH is transmitted according to the frame structure.

In the non-MIMO mode, the original HS-SCCH channel structure remains unchanged. As shown in Figure 1, the HS-SCCH channel frame structure is referred to as HS-SCCH TYPE1. The present invention is mainly directed to HS-SCCH in MIMO mode, and the frame structure of the above MIMO type one (46-bit frame length structure type) is referred to herein as HS-SCCH TYPE2, and the above MIMO type two (50-bit frame length structure type) The frame structure is referred to herein as HS-SCCH TYPE3. The HS-SCCH channel described herein still uses two downlink code channels with a spreading factor of 16, and still multiplexes the synchronization offset (SS) and transmission power control (TPC) commands for a total of 4 bits of synchronization power control information.

HS-SCCH TYPE2 is specifically divided into the following three to support different transmission modes:

1. TYPE2-A: HS-SCCH structure type for single-stream transmission in MIMO mode, including pure single stream and MU-MIMO (supporting two users, three users and four user space division) single stream transmission;

2. TYPE2-B: HS-SCCH structure type for SU-MIMO dual stream transmission in MIMO mode, and HS-PDSCH spreading factor (SF)=1; 3. TYPE2-C: The HS-SCCH structure type for MU-MIMO (supports twice the space division) dual stream transmission in MIMO mode, and the spreading factor SF=1 of HS-PDSCH.

The following three types are introduced separately:

1. The HS-SCCH structure type TYPE2-A for single stream transmission in MIMO mode, the single stream transmission includes pure single stream (ie, user single stream transmission and no space division with other users) and MU-MIMO single stream transmission, see Figure 2, including the following:

a) 2-bit type flag (TypeFlag) flag information, which is used to identify that the HS-SCCH structure type is for single stream. If 01 is set to identify single stream transmission in MIMO mode, then TypeFlag in TYPE2-A frame structure type When set to 01, it indicates a single stream transmission state, that is, a pure single stream transmission state and a single stream transmission state under MU-MIMO;

b) 5-bit time slot position information (TS), 1-bit modulation mode information (MS), 6-bit transmission block size (TBS) information, 3-bit HS-SCCH cycle number information (HCSN) in the original HS-SCCH structure The bit length and meaning of the information remain unchanged;

c) 2-bit redundancy version (RV) indication;

d) 4-bit HARQ process identification;

e) 1-bit FLAG flag information, used to identify whether it is pure single-stream transmission or MU-MIMO single-stream transmission. For example, FLAG=0 identifies pure single-stream transmission status, and FLAG=1 identifies MU-MIMO single-stream transmission status. ;

f) 6-bit channelization code set identification (CCS), which identifies CCS in a single-stream or MU-MIMO single-stream transmission state. The specific extension is as follows:

i) When the FLAG is identified as a pure single-stream transmission state, as shown in Figure 3, CCS is all 6 bits (x _CCiJ

Xccs, 2 Xccs, 3 Xccs, 4 Xccs, 5 Xccs, 6 ) used to identify channelization code information CCS, the minimum granularity of code channels is 2

SF=16, when •^ccs, 1 Xccs'2 -^ccs,3 -^ccs,4 -^ccs,5 -^ccs, 6~ 111000 ^^ SF-1

Ii) When the FLAG is identified as the single-stream transmission state of MU-MIMO, as shown in FIG. 4, it is further necessary to further distinguish the corresponding air-divided user number, that is, the Midamble code group allocated by the user, and use 2 bits to identify the user. The indication information of the used Midamble code group can be identified by the air separation user number or the Midamble code table number. When the air separation user number is used, the correspondence between the air separation user number and the Midamble code table number needs to be agreed in advance. If you can use the default order and the same number, see See Table 1. At this point, you can directly identify the air separation user number with CCS 1st and 2nd bits: 00-Identify the air separation user 1; 01 - Identify the air separation user 2; 10-Identify the air separation user 3; 11 - Indicates the air separation User 4.

Table 1

The remaining 4 bits of CCS are used to identify the code channel allocation information of the user (see Table 2). The minimum granularity of the code channel is 4 SF=16 code channels. When x _ccsJ x _ccs Xccs, 5 Xccs, 6= 00 indicates SF=1. The Kstart and Kstop in the table represent the assigned start code track and the end code track, respectively.

Table 2

New Data Block Indication (NDI) information is no longer included in TYPE2-A.

2. The HS-SCCH channel structure type TYPE2-B of SU-MIMO dual-stream transmission and HS-PDSCH channel spreading factor SF=1, see Figure 5, including the following:

a) 2-bit TypeFlag flag bit information, used to identify the current HS-SCCH channel structure type for SU-MIMO dual-stream transmission in MIMO mode, assuming 10 is set to identify SU-MIMO dual-stream transmission in MIMO mode, if TypeFlag is set to 10 , that is, identifying that the HS-SCCH channel structure type is a SU-MIMO dual stream transmission state; b) 5-bit time slot position information (TS), 1-bit modulation mode information (MS), 6-bit transmission block size information (TBS), 3-bit HARQ process identification, 3-bit HS-SCCH in the original HS-SCCH channel structure The position, bit length, and information meaning of the cyclic sequence number information (HCSN) remain unchanged. Wherein the modulation mode indication and the transport block size indication are used to characterize the primary transport block information (MS1 and TBS1) in the MIMO dual stream mode;

c) a 3-bit redundancy version indication (RV) and a 1-bit new data block identifier (NDI) in the original HS-SCCH channel structure are used to characterize the RV version of the primary and secondary transport blocks in the MIMO dual stream mode, for example The first two bits are used to characterize the primary block RV information (RV1), and the last two bits are used to characterize the secondary block RV information (RV2);

d) The 8-bit channelization code set identification (CCS) in the original HS-SCCH channel structure is compressed into a 6-bit channelization code set identifier (CCS) and used to indicate the size (TBS) and modulation mode of the secondary transport block in the dual stream mode ( MS) information. Includes:

When using dual-stream mode, use one bit to characterize the modulation mode (MS2) of the secondary transport block, for example, using the first bit in CCS (x _CCiJ ), Xccs, i is 0 to indicate quadrature phase shift keying (Quarature Phase Shift Keying, QPSK) or 64 Quadrature Amplitude Modulation (QAM), where x _ccsJ is 1 for 16QAM, where QPSK and 64QAM are distinguished by a coding rate threshold R, which is QPSK below the threshold R, higher than R For 64QAM. Ii When using the dual stream mode, the remaining bits in the CCS are used to characterize the TBS index offset (TBS2 offset) of the secondary transport block relative to the primary transport block, for example, 5, 2, 4, 5, and 6 in the CCS. The bits [X _cci , ₂ X _ccs , ₃ XccsA Xccs, 5 X _cci , 6] are characterized. The actual TBS index of the secondary block is equal to the primary block TBS index minus this offset.

3, MIMO mode MU-MIMO (supports two users air separation) HS-SCCH channel structure type TYPE2-C, as shown in Figure 6, includes:

a) 2-bit TypeFlag flag information, used to identify the HS-SCCH channel structure type as MU2-MIMO (supports double-space) dual-stream transmission structure type TYPE2-C in MIMO mode, if 00 is set to identify this For the type, if the TypeFlag in the TYPE2-C frame structure type is set to 00, it is identified as the MU-MIMO dual stream transmission state; b) 5-bit time slot position information (TS), 1-bit modulation mode information (MS), 6-bit transmission block size information (TBS), 3-bit HARQ process identification, 3-bit HS-SCCH in the original HS-SCCH channel structure The position, bit length, and information meaning of the cyclic sequence number information (HCSN) remain unchanged. Wherein the modulation mode indication and the transport block size indication are used to characterize the primary transport block information (MS1 and TBS1) in the MIMO dual stream mode;

c) The 3-bit redundancy version indication (RV) and the 1-bit new data block identifier (NDI) in the original HS-SCCH channel structure are used to characterize the RV version of the primary and secondary transport blocks in the dual stream mode, for example, where Two bits are used to characterize the RV information (RV1) of the primary block, and the last two bits are used to characterize the RV information (RV2) of the secondary block;

d) The 8-bit channelization code set identification (CCS) in the original HS-SCCH channel structure is compressed into a 6-bit channelization code set identifier (CCS) and used to indicate the size (TBS) of the secondary transport block in the MU-MIMO dual stream mode. Modulation method (MS) information, including:

When using the dual stream mode, one bit is used to characterize the modulation mode (MS2) of the secondary transport block, for example, the first bit _ccsJ in CCS, x _ccsJ is 0 for QPSK or 64QAM, and x _ccsJ is 1 for 16QAM, where QPSK It is distinguished from 64QAM by a coding rate threshold R, which is QPSK lower than the threshold R and 64QAM higher than R.

Ii When using the dual stream mode, the remaining bits in the CCS are used to characterize the TBS index offset (TBS2 offset) of the secondary transport block relative to the primary transport block, for example, 5, 2, 4, 5, and 6 in the CCS. Bits [ _CCi , 2 Xccs, 3 Xccs, 4 Xccs, 5 X _cci , 6] are characterized. The actual TBS index of the secondary block is equal to the primary block TBS index minus this offset.

e) identifying the air separation user number according to the CRC status, for example, the CRC normally indicates the air separation user 1 , and the CRC polarity inversion indicates the air separation user 2;

There are two different transmission methods for HS-SCCH TYPE3:

1. TYPE3-A: HS-SCCH channel structure type for single stream transmission in MIMO mode, the single stream transmission in the MIMO mode includes pure single stream and MU-MIMO (supports two users, three users and four users air separation) Single stream transmission;

2. TYPE3-B: HS-SCCH channel structure type for dual stream transmission in MIMO mode, Includes SU-MIMO dual stream and MU-MIMO dual stream.

The following two types are introduced separately:

1. HS-SCCH channel structure type TYPE3-A for single stream transmission in MIMO mode (including pure single stream and MU-MIMO single stream transmission), see Figure 7:

a) 5-bit time slot position information (TS), 1-bit modulation mode information (MS), 6-bit transmission block size information (TBS), 3-bit HARQ process identification, 3-bit HS-SCCH in the original HS-SCCH channel structure The bit length and information meaning of the cyclic sequence number information (HCSN) remain unchanged, wherein the modulation mode indication and the transport block size indication are used to characterize the primary transport block (or stream 1) information (MS1 and TBS1);

b) 4-bit first channelization code set identifier, denoted as CCS1;

c) a 2-bit second channelization code set identifier for identifying channelization code set information, denoted as CCS2; d) 2-bit redundancy version indication (RV);

e) 1-bit FLAG flag information, used to identify whether it is pure single stream transmission or MU-MIMO single stream transmission, for example, FLAG=0 is used as pure single stream transmission status, and FLAG=1 is used to identify MU-MIMO single stream transmission. State

f) 1-bit modulation mode information, used to characterize the secondary transport block (or stream 2) indication, denoted as MS2; g) 6-bit transport block size information, used to characterize the secondary transport block (or stream 2) indication, record For TBS2;

h) When the FLAG flag identifies the pure single-stream transmission status, CCS1 and CCS2 form CCS

(

Channelization code set information, the minimum granularity of the code channel is 2 SF=16 code channels, when X _ccsJ X _ccs , ₂ X _ccs , ₃ X _C cs, 4 ^X ccs, 5 Xccs, 6=^ 11000 denotes SF= 1;

i) When the FLAG flag identifies the MU-MIMO single-stream transmission status, [CCS1 CCS2] 6 bits, further distinguish the corresponding space-division user number, that is, the Midamble code group allocated by the user, and carry the user with 2 bits of CCS2. The instructions of the used Midamble code group are distinguished, for example, in the following manner:

i, CCS2 2-bit identification space user number: 00 - identifies the air separation user 1; 01 - identifies the air separation User 2; 10 - identifies the air separation user 3; 1 1 - indicates the air separation user 4; (see Table 1)

Ii, 4 bits of CCS1 are used to identify the code channel allocation information of the user. The minimum granularity of the code channel is 4 code channels of SF=16, when x _ccsJ x _ccs , ₂ Xccs Xccs, 4 =1 100 means SF=1; See Table 2)

New Data Block Indication (NDI) information is no longer included in TYPE3-A.

2. The dual-stream transmission in MIMO mode includes the HS-SCCH channel structure type TYPE3-B of SU-MIMO and MU-MIMO, as shown in Figure 8, including:

a) 5-bit time slot position information (TS), 1-bit modulation mode information (MS), 6-bit transmission block size information (TBS), 3-bit HARQ process identification, 3-bit HS-SCCH in the original HS-SCCH channel structure The position, bit length, and information meaning of the cyclic sequence number information (HCSN) remain unchanged. Wherein the modulation mode indication and the transport block size indication are used to characterize the primary transport block (or stream 1) information (MS1 and TBS1);

b) The 3-bit redundancy version indication (RV) and the 1-bit new data block identifier (NDI) in the original HS-SCCH channel structure are used to characterize the RV version of the primary and secondary transport blocks in the MIMO dual stream mode, where the former Two bits are used to characterize the primary block RV information (RV1), and the last two bits are used to characterize the secondary block RV information (RV2);

c) 4-bit channelization code set identification ( CCS1 );

d) 1-bit modulation mode information, used to characterize the secondary transport block (or stream 2) indication, denoted as MS2; e) 6-bit transport block size information, used to characterize the secondary transport block (or stream 2) indication, record For TBS2;

f) 1-bit FLAG flag information, used to identify the SU-MIMO dual-stream transmission state or MU-MIMO dual-stream transmission state. For example, FLAG=0 can be used to identify the SU-MIMO dual-stream transmission state, and 4 bits of CCS1 are used to identify the user. Code channel allocation information, the code channel minimum granularity is 4 SF=16 code channels, when x _ccsU x _ccsU x _ccsU x _ccsU =\ \ 00 indicates SF=1; FLAG=1 is used to identify the dual stream transmission status of MU-MIMO, 1 bit (for example, x _CCi ) in _CCS1 is used to identify the user's space division user number, see Table 3; 2 bits (such as Xccsu) identify the code channel allocation information, see Table 4, the minimum code size of the code channel is 8 SF=16 The code channel, when ^ccsl, 2 ^ ccs 1, 3 - 10 means SF = 1;

1 bit (x _CCi ) reserved; table 3

Table 4

TYPE3-A and TYPE3-B distinguish between TBS1 and TBS2 based on whether there is an all-zero state.

The HS-SCCH transmission method is further introduced below:

For a terminal that does not support MIMO in the network, the base station side transmits according to the original HS-SCCH TYPE1, and the terminal side parses according to the original mode.

For the terminal supporting the MIMO function in the network, according to whether the user terminal supports the use of the type 1 (HS-SCCH TYPE2 type) frame structure or the MIMO type 2 (HS-SCCH TYPE3 type) frame structure, when the base station determines to transmit the HS-SCCH, Frame structure used:

1. For terminals supporting MIMO type one (HS-SCCH TYPE2 type) frame structure: When the base station side HS-PDSCH performs pure single stream or MU-MIMO single stream mode transmission, use HS-SCCH TYPE2-A transmission When the base station HS-PDSCH performs SU-MIMO dual-stream transmission, it uses HS-SCCH TYPE2-B transmission; when the base station HS-PDSCH performs MU-MIMO dual-stream transmission, it uses HS-SCCH TYPE2-C to transmit. Since the total number of bits of TYPE2-A/TYPE2-B/TYPE2-C is 46 bits consistent with the original HS-SCCH channel bit number, the original demodulation method can be used for TYPE2-A/TYPE2-B/ TYPE2. -C performs parsing, and the terminal judges according to the information of the TypeFlag field that the HS-SCCH channel structure type is TYPE2-A, TYPE2-B or TYPE2-C, respectively.

2. For terminals supporting MIMO type 2 (HS-SCCH TYPE3 type) frame structure: When the base station side HS-PDSCH performs pure single stream or MU-MIMO single stream mode transmission, it uses HS-SCCH TYPE3-A transmission; when the base station side HS-PDSCH performs dual stream transmission, it uses HS-SCCH TYPE3-B transmission. . The terminal judges that the HS-SCCH channel structure types are TYPE3-A and TYPE3-B according to the information of the TBS1 and TBS2 fields.

Transmitting end embodiment 1

The following takes the base station to send the HS-SCCH TYPE2 information to the MIMO user terminal (the user can support the coexistence of MU-MIMO and SU-MIMO functions) as an example, and specifically describes the specific implementation steps of the transmitting end of the present invention (see FIG. 9):

901. The base station determines, according to the corresponding scheduling algorithm and the spatial isolation determination criterion, a suitable transmission mode of the current scheduling user on the HS-PDSCH:

901a) The spatial isolation between the scheduling users cannot meet the user space requirement, and the single-user spatial channel condition does not satisfy the SU-MIMO dual-stream transmission condition, and the current scheduling user uses the pure single-stream transmission mode;

901b) The spatial isolation between the scheduling users can reach the user space requirement, but the single user spatial channel condition does not satisfy the SU-MIMO dual stream transmission condition, and the current scheduling user uses the MU-MIMO single stream transmission mode;

901c) The spatial isolation between the scheduling users cannot meet the user space requirement, but the single-user spatial channel condition can satisfy the SU-MIMO dual-stream transmission condition, and the current scheduling user uses the SU-MIMO dual-stream transmission mode;

901d) The spatial isolation between the scheduling users reaches the user space requirement, and the single-user spatial channel condition can satisfy the SU-MIMO dual-stream transmission condition, and the current scheduling user uses the user to perform space division and each single user also performs SU-MIMO. Dual stream transmission, that is, MU-MIMO dual stream transmission mode;

902. If the HS-PDSCH of the scheduling user is a pure single stream or a MU-MIMO single stream transmission mode, the base station selects the TYPE2-A type to transmit the HS-SCCH information.

903. If the HS-PDSCH of the scheduling user is in the SU-MIMO dual stream transmission mode, the base station selects the TYPE2-B type to transmit the HS-SCCH information.

904. If the HS-PDSCH of the scheduling user is a MU-MIMO dual stream transmission mode, the base station Select the TYPE2-C type to transmit HS-SCCH information.

Transmitting end embodiment 2

The following takes the base station to send the HS-SCCH TYPE2 information to the MIMO user terminal (the user can support the MU-MIMO and SU-MIMO functions, but does not support the coexistence of the two functions), and specifically describes the specific implementation steps of the transmitting end of the present invention (see the figure). 10) :

1001. The base station determines, according to the corresponding scheduling algorithm and the spatial isolation determination criterion, a suitable transmission mode of the current scheduling user on the HS-PDSCH:

1001 a) The spatial isolation between the scheduling users cannot meet the user space requirement, and the single-user spatial channel condition does not satisfy the SU-MIMO dual-stream transmission condition, and the current scheduling user uses the pure single-stream transmission mode;

1001b) The spatial isolation between the scheduling users can reach the user space requirement, but the single-user spatial channel condition does not satisfy the SU-MIMO dual-stream transmission condition, and the current scheduling user uses the MU-MIMO single-stream transmission mode;

1001c) The spatial isolation between the scheduling users cannot meet the user space requirement, but the single-user spatial channel condition can satisfy the SU-MIMO dual-stream transmission condition, and the current scheduling user uses the SU-MIMO dual-stream transmission mode;

1001d) The spatial isolation between the scheduling users reaches the user space requirement, and the single-user spatial channel condition can satisfy the SU-MIMO dual-stream transmission condition, and the current scheduling user preferentially selects the MU-MIMO single-stream transmission mode between users (or the current scheduling) The user selects the SU-MIMO dual stream transmission mode);

1002: If the HS-PDSCH of the scheduling user is a pure single stream or a MU-MIMO single stream transmission mode, the base station selects the TYPE2-A type to transmit the HS-SCCH information;

1003. If the HS-PDSCH of the scheduling user is in the SU-MIMO dual stream transmission mode, the base station selects the TYPE2-B type to transmit the HS-SCCH information.

Transmitting end embodiment 3 The following takes the base station to send the HS-SCCH TYPE3 information to the MIMO user terminal (the user can support the coexistence of the MU-MIMO and SU-MIMO functions) as an example, and specifically describes the specific implementation steps of the transmitting end of the present invention (see FIG. 11):

1101. The base station determines, according to the corresponding scheduling algorithm and the spatial isolation decision criterion, a suitable transmission mode of the current scheduling user on the HS-PDSCH channel:

1101 a) The spatial isolation between the scheduling users cannot meet the user space requirement, and the single-user spatial channel condition does not satisfy the SU-MIMO dual-stream transmission condition, and the current scheduling user uses the pure single-stream transmission mode;

1101b) The spatial isolation between the scheduling users can reach the user space requirement, but the single-user spatial channel condition does not satisfy the SU-MIMO dual-stream transmission condition, and the current scheduling user uses the MU-MIMO single-stream transmission mode;

1101 c) The spatial isolation between the scheduling users cannot meet the user space requirement, but the single-user spatial channel condition can satisfy the SU-MIMO dual-stream transmission condition, and the current scheduling user uses the SU-MIMO dual-stream transmission mode;

l lOld) The spatial isolation between the scheduling users reaches the user space requirement, and the single-user spatial channel condition can satisfy the SU-MIMO dual-stream transmission condition, and the current scheduling user preferentially selects the MU-MIMO dual-stream transmission mode between users;

1102, when the HS-PDSCH is a pure single stream or a MU-MIMO single stream transmission mode, the base station selects the TYPE3-A type to transmit the HS-SCCH information;

1103, when the HS-PDSCH is in the SU-MIMO dual stream transmission mode or the MU-MIMO dual stream transmission mode, the base station selects the TYPE3-B type to transmit the HS-SCCH information.

Transmitting end embodiment 4

In the following, the base station sends the HS-SCCH TYPE3 information to the MIMO user terminal (the user can support the MU-MIMO and SU-MIMO functions, but does not support the coexistence of the two functions), and specifically describes the specific implementation steps of the transmitting end of the present invention ( See Figure 12):

1201. The base station determines, according to the corresponding scheduling algorithm and the spatial isolation determination criterion, a suitable transmission mode of the current scheduling user on the HS-PDSCH channel: 1201a) The spatial isolation between the scheduling users cannot meet the user space requirement, and the single-user spatial channel condition does not satisfy the SU-MIMO dual-stream transmission condition, and the current scheduling user uses the pure single-stream transmission mode;

1201b) The spatial isolation between the scheduling users can reach the user space requirement, but the single-user spatial channel condition does not satisfy the SU-MIMO dual-stream transmission condition, and the current scheduling user uses the MU-MIMO single-stream transmission mode;

1201c) The spatial isolation between the scheduling users cannot meet the user space requirement, but the single-user spatial channel condition can satisfy the SU-MIMO dual-stream transmission condition, and the current scheduling user uses the SU-MIMO dual-stream transmission mode;

1201d) The spatial isolation between the scheduling users reaches the user space requirement, and the single user spatial channel condition can satisfy the SU-MIMO dual stream transmission condition, and the current scheduling user preferentially selects the MU-MIMO single stream transmission mode between users (or current scheduling) The user selects the SU-MIMO dual stream transmission mode);

1202: When the HS-PDSCH is a pure single stream or a MU-MIMO single stream transmission mode, the base station selects the TYPE3-A type to transmit the HS-SCCH information;

1203. When the HS-PDSCH is in the SU-MIMO dual-stream transmission mode, the base station selects the TYPE3-B type to transmit the HS-SCCH information.

The transmitting device for implementing the foregoing sending method includes a saving module, a frame structure determining module, and a sending module, where:

The saving module is configured to save a predetermined HS-SCCH frame structure corresponding to a different transmission mode of the HS-PDSCH, and the transmission mode supported by the HS-PDSCH includes at least: a pure single stream transmission mode, and a MU-MIMO single stream. Transmission mode, SU-MIMO dual stream transmission mode;

The frame structure determining module is configured to determine, in the scheduling process, a transmission mode suitable for the scheduling user on the HS-PDSCH, and determine, according to the predetermined correspondence, that the information sent on the HS-SCCH should be used. Frame structure

The sending module is configured to send the HS-SCCH according to the determined frame structure.

Further, the frame structure that should be used when the HS-SCCH transmits information includes 46 bits long. a type-frame structure of the degree, the pure single stream transmission mode and the MU-MIMO single stream transmission mode correspond to the same type of one frame structure; the SU-MIM0 dual stream transmission mode corresponds to another type of one frame structure; or the HS is in the HS - The frame structure to be used when the SCCH transmits information includes a type 2 frame structure of 50 bits length, the pure single stream transmission mode, the MU-MIMO single stream transmission mode corresponds to the same type of two frame structure, and the SU-MIMO dual stream transmission mode Corresponding to another type of two-frame structure; the frame structure determining module is configured to select a corresponding frame structure type according to a frame structure supported by the user terminal.

Further, the transmission mode supported on the HS-PDSCH further includes a MU-MIMO dual stream transmission mode, and the MU-MIMO dual stream transmission mode and the SU-MIMO dual stream transmission mode correspond to the same type one or type two frame structure.

The HS-SCCH receiving method is further introduced below:

The user terminal monitors the HS-SCCH, and demodulates the received HS-SCCH. After determining that the information carried on the HS-SCCH is the information of the user, determining the HS according to the information used for the identification type in the frame. - a frame structure type transmitted by the SCCH to determine a transmission mode used by the HS-PDSCH, the transmission mode including at least: a pure single stream transmission mode, a MU-MIMO single stream transmission mode, and a SU-MIMO dual stream transmission mode.

The user terminal reads each field of the HS-SCCH frame according to the determined HS-SCCH frame structure type, and acquires information carried by the HS-SCCH.

When it is judged that the transmission mode used by the HS-PDSCH is the MU-MIMO single stream transmission mode, the Midamble code group used by the user is further determined according to the information in the frame.

Receiver embodiment 1

The following is an example of demodulating the HS-SCCH TYPE2 information by using a MIMO user terminal (the user can support the coexistence of MU-MIMO and SU-MIMO functions), and specifically describes the specific implementation steps of the present invention (see FIG. 13):

Step 1301: The user terminal listens to all HS-SCCHs and demodulates the HS-SCCH. Step 1302: Determine whether the user information is normal according to the corresponding UE identity polarity, and determine Then continue to execute, otherwise skip to step 1317;

Step 1303: After determining the user information, reading the corresponding TypeFlag field information; Step 1304: The TypeFlag field information is 01, and determining that the HS-SCCH is a TYPE2-A transmission type, that is, the user performs single stream transmission;

Step 1305: Read FLAG flag information, determine whether FLAG is 0, if yes, determine that the HS-SCCH is a TYPE2-A pure single stream transmission type, and read a total of 6 bits of information in the CCS field to obtain the allocated code channel information; Go to step 1312, if it is not established, continue execution;

Step 1306: FLAG is 1, determining that the HS-SCCH is a MU-MIMO single stream transmission type under TYPE2-A;

Step 1307: Read the first and second bit information of the CCS, and determine whether it is 00. If the current user is the air separation user 1, the assigned Midamble code group is the first group, and the process proceeds to step 1311;

Step 1308: Determine whether the first and second bits of the CCS satisfy 01, and if the current user is an air-divided user 2, the assigned Midamble code group is the second group, and the process proceeds to step 1311, and vice versa;

Step 1309: Determine whether the first and second bits of the CCS satisfy 10, and if the current user is an air-divided user 3, the assigned Midamble code group is the third group, and the process proceeds to step 1311, and vice versa;

Step 1310, that is, whether the first and second bits of the CCS satisfy 11 and the current user is the air separation user 4, that is, the assigned Midamble code group is the fourth group, and continues to execute;

Step 1311: Read 4 bits of the 3rd, 4th, 5th, and 6th bits in the CCS to obtain the code channel information allocated by the user;

Step 1312: Read corresponding other related field information according to the TYPE2-A structure type, and skip to step 1321.

Step 1313: The TypeFlag field information is 10, and the HS-SCCH type is TYPE2-B type, that is, the SU-MIMO dual stream transmission user;

Step 1314, reading corresponding other related field information according to the TYPE2-B structure type, and jumping to step 1321; Step 1315: If the TypeFlag field information is 00, the HS-SCCH type is TYPE2-C, that is, the user is a MU-MIMO dual stream transmission air separation user;

Step 1316, and the current user is the air separation user 1, that is, the assigned Midamble code group is the first group, and jumps to step 1320;

Step 1317: Determine whether the user information is based on the corresponding UE identity CRC polarity inversion, and then continue to perform, otherwise skip to step 1322;

Step 1318: If the TypeFlag field information is 00, the HS-SCCH type is TYPE2-C, that is, the user is a MU-MIMO dual stream transmission air separation user;

Step 1319: The current user is the air separation user 2, that is, the assigned Midamble code group is the second group; Step 1320: Read corresponding other related field information according to the TYPE2-C structure type; Step 1321, HS-SCCH information demodulation End;

Step 1322: Determine the error discarding related information, and the UE continues to monitor the HS-SCCH channel.

Receiver embodiment 2

The following is an example of demodulating the HS-SCCH TYPE2 information by using a MIMO user terminal (the user can support the MU-MIMO and SU-MIMO functions, but does not support the coexistence of the two), and specifically describes the specific implementation steps of the present invention (see FIG. 14). :

Step 1401: The user terminal monitors all HS-SCCHs and demodulates the HS-SCCH. Step 1402: Determine whether the user information is based on the corresponding UE identifier, and then continue to perform the determination, otherwise skip to step 1416;

Step 1403: After determining the user information, reading the corresponding TypeFlag field information; Step 1404: The TypeFlag field information is 01, and determining that the HS-SCCH is a TYPE2-A transmission type, that is, the user performs single-stream transmission;

Step 1405: Read FLAG flag information, determine whether FLAG is 0, if yes, determine that the HS-SCCH is a TYPE2-A pure single stream transmission type, read a total of 6 bits of information in the CCS field, obtain the code stream information, and jump. Go to step 1412, if it is not established, continue execution;

Step 1406: FLAG is 1, and the HS-SCCH channel is determined to be MU-MIMO under TYPE2-A. Single stream transmission type;

Step 1407: Read the first and second bit information of the CCS, and determine whether it is 00. If the current user is the air separation user 1, the assigned Midamble code group is the first group, and the process proceeds to step 1411;

Step 1408: Determine whether the first and second bits of the CCS satisfy 01, and if the current user is an air-divided user 2, the assigned Midamble code group is the second group, and the process proceeds to step 1411, and vice versa;

Step 1409: Determine whether the first and second bits of the CCS satisfy 10, and if the current user is an air-divided user 3, the assigned Midamble code group is the third group, and the process proceeds to step 1411, and vice versa;

Step 1410, that is, whether the first and second bits of the CCS satisfy 11 and the current user is an air-divided user 4, that is, the assigned Midamble code group is the fourth group, and continues to execute;

Step 1411: Read 4 bits of the 3, 4, 5, and 6 bits in the CCS to obtain the code channel information allocated by the user.

Step 1412, reading corresponding other related field information according to the TYPE2-A structure type, and jumping to step 1415;

Step 1413: The TypeFlag field information is 10, and the HS-SCCH type is TYPE2-B type, that is, the SU-MIMO dual stream transmission user;

Step 1414: Read corresponding other related field information according to the TYPE2-B structure type; Step 1415, the HS-SCCH information demodulation ends;

Step 1416: Determine the error discarding related information, and the UE continues to monitor the HS-SCCH.

Receiver embodiment 3

The following is an example of demodulating the HS-SCCH TYPE3 information by using a MIMO user terminal (the user can support the coexistence of MU-MIMO and SU-MIMO functions), and specifically describes the specific implementation steps of the present invention (see FIG. 15):

Step 1501: The user terminal listens to all HS-SCCHs and demodulates the HS-SCCH. Step 1502: Determine whether it is the user information according to the corresponding UE identifier, and determine to continue the execution, otherwise skip to step 1522;

Step 1503: After determining the user information, read the corresponding TBS1 and TBS2 field information. Step 1504: Determine whether the TBS1 and TBS2 fields have an all-zero state, and if yes, determine that the HS-SCCH is the TYPE3-A transmission type, that is, the user performs Single stream transmission, continue to execute, if not, then go to step 1513;

Step 1505: Read the FLAG flag bit information, determine whether the FLAG is 0, and if yes, determine that the HS-SCCH is a TYPE3-A pure single stream transmission type, and read a total of 6 bits of information in the CCS1 and CCS2 fields to obtain a code channel allocated by the user. Information; and skip to step 1512, if not, continue to execute; Step 1506, FLAG is 1, determine that the HS-SCCH is MU3-MIMO single stream transmission type under TYPE3-A;

Step 1507: Read CCS2 field information, and determine whether it is 00. If it is established, the current user is a null user 1, that is, the assigned Midamble code group is the first group, and jumps to step 1511, and vice versa;

Step 1508: Determine whether the CCS2 field information is 01, and the current user is an air sub-user.

2, that is, the assigned Midamble code group is the second group, and jumps to step 1511, and vice versa; step 1509, determining whether the CCS2 field satisfies 10, if the current user is an air-divided user 3, that is, the assigned Midamble code group is The third group, and jump to step 1511, and vice versa;

Step 1510: Determine that the CCS2 field is 11, and the current user is the air separation user 4, that is, the assigned Midamble code group is the fourth group;

Step 1511: Read CCS1 field information, and obtain code channel information allocated by the user.

Step 1512: Read corresponding other related field information according to the TYPE3-A structure type, and skip to step 1521.

Step 1513: The HS-SCCH type is a TYPE3-B type, that is, a dual stream transmission state; Step 1514, reading FLAG flag bit information, determining whether FLAG is 0, and establishing, determining that the HS-SCCH is TYPE3-B dual stream transmission Type SU-MIMO dual stream transmission status, continue to execute; does not set to jump to step 1517; Step 1515, the CCS1 field information is read, the code channel information allocated by the user is obtained, and the process proceeds to step 1520.

Step 1516: FLAG = 1 determines that the HS-SCCH is a MU-MIMO dual stream transmission state in the TYPE3-B dual stream transmission type, that is, the user is a MU-MIMO dual stream transmission air separation user;

Step 1517: Read the first bit in CCS1, and determine whether it is 0. If it is established, the current user is the air separation user 1, that is, the assigned Midamble code group is the first group, and jumps to step 1519, and vice versa;

In step 1518, the first bit in CCS1 is 1 and the current user is the air separation user 2, that is, the assigned Midamble code group is the second group;

Step 1519: Read the second and third bit information of the CCS1, and obtain the code channel allocation information of the user. Step 1520: Read corresponding other related field information according to the TYPE3-B structure type. Step 1521: End of HS-SCCH information demodulation ;

Step 1522: Determine the error discarding related information, and the UE continues to monitor the HS-SCCH.

Receiver embodiment 4

The following is an example of demodulating the HS-SCCH TYPE3 information by using a MIMO user terminal (the user can support the MU-MIMO and SU-MIMO functions, but the two cannot coexist), and specifically describes the specific implementation steps of the present invention (see FIG. 16):

Step 1601: The user terminal monitors all HS-SCCHs and demodulates the HS-SCCH. Step 1602: Determine whether the user information is based on the corresponding UE identifier, and then continue to execute, otherwise skip to step 1618.

Step 1603: After determining the user information, reading the corresponding TBS1 and TBS2 field information; Step 1604, determining whether the TBS1 and TBS2 fields have an all-zero state, and establishing, determining that the HS-SCCH is the TYPE3-A transmission type, that is, the user performs Single stream transmission, continue to execute, if not, then go to step 1613;

Step 1605: Read FLAG flag information, determine whether FLAG is 0, and if yes, determine that the HS-SCCH is a TYPE3-A pure single stream transmission type, and read CCS1 and CCS2 field information, and obtain The code channel information allocated by the user is taken; and the process proceeds to step 1612. If not, the process continues; step 1606, FLAG is 1, and the HS-SCCH is determined to be a MU-MIMO single stream transmission type under TYPE3-A;

Step 1607: Read the CCS2 field information, and determine whether it is 00. If the current user is the air user 1, the assigned Midamble code group is the first group, and the process proceeds to step 1611, and vice versa;

Step 1608, determining whether the CCS2 field information is 01, if the current user is the air separation user 2, that is, the assigned Midamble code group is the second group, and jumping to step 1611, and vice versa; step 1609, determining whether the CCS2 field is satisfied 10, if the current user is an air-divided user 3, that is, the assigned Midamble code group is the third group, and jumps to step 1611, and vice versa;

Step 1610: Determine that the CCS2 field is 11, and the current user is the air separation user 4, that is, the assigned Midamble code group is the fourth group;

Step 1611: Read CCS1 field information, and obtain code channel information allocated by the user.

Step 1612: Read corresponding other related field information according to the TYPE3-A structure type, and skip to step 1617.

Step 1613: The HS-SCCH type is a TYPE3-B type, that is, a dual stream transmission state; Step 1614, reading FLAG flag bit information, determining whether FLAG is 0, and establishing, determining that the HS-SCCH is TYPE3-B dual stream transmission Type SU-MIMO dual stream transmission state, does not hold to jump to step 1618;

Step 1615: Read CCS1 field information, and obtain code channel information allocated by the user.

Step 1616: Read corresponding other related field information according to the TYPE3-B structure type; Step 1617, the HS-SCCH information demodulation ends;

Step 1618: Determine the error discarding related information, and the UE continues to monitor the HS-SCCH.

A receiving device for implementing the above method, comprising a receiving module and a demodulating module, wherein:

The receiving module is configured to monitor a high speed shared control channel (HS-SCCH) and receive an HS-SCCH; and the demodulation module is configured to perform demodulation on the received HS-SCCH, where After the information carried on the HS-SCCH is the information of the user, the frame structure type sent by the HS-SCCH is determined according to the information used for the identifier type in the frame to determine a high-speed physical downlink shared channel (HS-PDSCH). A transmission mode used includes at least: a pure single stream transmission mode, a MU-MIMO single stream transmission mode, and a SU-MIMO dual stream transmission mode.

The transmission mode further includes: a MU-MIMO dual stream transmission mode. The demodulation module is configured to further determine, according to the information in the frame, the Midamble code group used by the user when determining that the transmission mode used by the HS-PDSCH is the MU-MIMO single stream transmission mode.

One of ordinary skill in the art will appreciate that all or a portion of the steps above may be accomplished by a program to instruct the associated hardware, such as a read-only memory, a magnetic disk, or an optical disk. Alternatively, all or part of the steps of the above embodiments may also be implemented using one or more integrated circuits. Correspondingly, each module/unit in the above embodiment may be implemented in the form of hardware or in the form of a software function module. The invention is not limited to any specific form of combination of hardware and software.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Industrial applicability

The invention is based on the frame structure transmission control information of the extended HS-SCCH, can meet the requirement of transmitting control signaling in the MU-MIMO mode, and can be compatible with the non-MIMO mode and the single-user SU-MIMO mode to transmit control information.

Claims

Claim

1. A method for transmitting high speed shared control channel information, comprising:

The base station predetermines a frame structure that should be used when the high-speed shared control channel (HS-SCCH) transmits information corresponding to different transmission modes on the high-speed physical downlink shared channel (HS-PDSCH), and is supported by the HS-PDSCH. The transmission mode includes at least: a pure single stream transmission mode, a multi-user multiple input multiple output (MU-MIMO) single stream transmission mode, or a single user multiple input multiple output (SU-MIMO) dual stream transmission mode;

2. The method of claim 1 wherein

3. The method of claim 2, wherein

4. The method according to claim 1 or 2, wherein

When the base station uses the transmission mode on the HS-PDSCH as pure single stream mode or MU-MIMO single stream In the mode, in the sending step, the base station carries the following content in the frame sent by the HS-SCCH:

2-bit type flag (TypeFlag) flag information, used to identify the current HS-SCCH for pure single stream transmission mode or MU-MIMO single stream transmission mode; 5 bit slot position information (TS); 1 bit modulation mode information (MS 6-bit transport block size information (TBS); 3-bit HS-SCCH loop number information (HCSN); 2-bit redundancy version (RV) indication; 4-bit HARQ process identification; 1-bit FLAG flag information, used for identification Whether it is pure single stream transmission or MU-MIMO single stream transmission; 6 bit channelization code set identification (CCS), when it is pure single stream transmission mode, all 6 bits of CCS are used to identify channelization code information CCS; In the MIMO single-stream transmission mode, 2 bits in the CCS carry indication information for identifying the Midamble code group used by the user, and the remaining 4 bits are used to identify the code channel allocation information of the user.

5. The method according to claim 1 or 2, wherein

2 bit type flag (TypeFlag) flag information, used to identify this HS-SCCH

MIMO mode SU-MIMO dual stream transmission; 5-bit slot position information (TS); 1-bit modulation scheme information (MS1) for identifying the modulation information of the primary transport block; 6-bit transport block size information (TSS1) for identification Transport block size information of the primary transport block; 3-bit HARQ process identification; 3-bit HS-SCCH cycle sequence number information (HCSN); 4-bit redundancy version (RV) indication, 2 bits in the RV indication are used to characterize the primary block RV Information, the other 2 bits are used to characterize the secondary block RV information; the 6-bit channelization code set identifier (CCS), where 1 bit of the CCS is used to carry the modulation mode (MS2) of the secondary transport block in the dual stream mode, and the remaining bits are used for Carrying the TBS index offset (TBS2 offset ) of the secondary transport block relative to the primary transport block in dual stream mode.

6. The method of claim 3, wherein

2 bit type flag (TypeFlag) flag information, used to identify the current HS-SCCH for MIMO mode MU-MIMO dual stream transmission; 5-bit slot position information (TS); 1-bit modulation Mode information (MSI) for identifying modulation information of the primary transport block in the dual stream mode; 6-bit transport block size information (TBS1) for identifying transport block size information of the primary transport block in the dual stream mode; 3-bit HARQ process Identification; 3-bit HS-SCCH cycle sequence number information (HCSN); 4-bit redundancy version (RV) indication, 2 bits in the RV indication are used to characterize the primary block RV information, and the other 2 bits are used to characterize the secondary block RV information; 6-bit channelization code set identifier (CCS), where: 1 bit is used to carry the modulation mode (MS2) of the secondary transport block in the dual-stream mode, and the remaining bits are used to carry the secondary transport block in the dual-stream mode relative to the primary transport block. TBS index offset (TBS2 offset); identifies the air separation user by whether the CRC performs polarity inversion.

7. The method according to claim 1 or 2, wherein

5-bit time slot position information (TS); 1-bit modulation mode information (MS1); 6-bit transmission block size information (TBS1); 3-bit HARQ process identification; 3-bit HS-SCCH cycle number information (HCSN); 4-bit One channelization code set identification (CCS1); 2-bit second channelization code set identification (CCS2); 2-bit redundancy version indication (RV); 1-bit FLAG flag bit information, used to identify whether it is pure single stream transmission or MU - MIMO single stream transmission; 1-bit modulation mode information (MS2); 6-bit transmission block size information (TBS2);

When in the pure single-stream transmission mode, CCS1 and CCS2 jointly identify the channelization code set information; when in the MU-MIMO single-stream transmission mode, the 2 bits of CCS2 are used to identify the indication information of the Midamble code group used by the user. The 4 bits of CCS1 are used to identify the code channel allocation information of the user.

8. The method of claim 3, wherein

5-bit time slot position information (TS); 1-bit modulation mode information (MS1) for identifying primary transmission block modulation mode information in MIMO dual stream mode; 6-bit transmission block size information (TBS1) for identifying dual stream in MIMO Primary transport block size information in the mode; 3-bit HARQ process identifier; 3-bit HS-SCCH cyclic sequence number information (HCSN); 4-bit redundancy version indication (RV) for identifying the RV version of the primary and secondary transport blocks in the MIMO dual stream mode; 4-bit channelization code set identification (CCS1); The bit modulation mode information (MS2) is used to identify the modulation mode information of the secondary transport block; the 6-bit transport block size information (TBS2) is used to identify the transport block size information of the secondary transport block; the 1-bit FLAG flag bit information is used for The identification transmission mode is a dual-stream transmission mode of SU-MIMO dual stream transmission mode or MU-MIMO;

When in the SU-MIMO dual-stream transmission mode, 4 bits of CCS1 are used to identify the code channel allocation information of the user; when it is the dual-stream transmission mode of MU-MIMO, 1 bit in CCS1 is used to identify the user's space division user number, and the rest 2 bits identify the code channel allocation information.

9. A transmitting device for sharing control channel information at high speed, comprising a saving module, a frame structure determining module and a sending module, wherein:

The saving module is configured to: store a high-speed shared control channel (HS-SCCH) frame structure corresponding to different transmission modes of a predetermined high-speed physical downlink shared channel (HS-PDSCH), and the supported transmission on the HS-PDSCH The mode includes at least: a pure single stream transmission mode, a multi-user multiple input multiple output (MU-MIMO) single stream transmission mode, or a single user multiple input multiple output (SU-MIMO) dual stream transmission mode;

The transmitting apparatus according to claim 9, wherein the frame structure determining module is configured to: the frame structure to be used when the HS-SCCH transmits information includes a type-frame structure of a 46-bit length, The pure single stream transmission mode and the MU-MIMO single stream transmission mode correspond to the same type of one frame structure; the SU-MIMO dual stream transmission mode corresponds to another type of one frame structure; or

The frame structure determining module is further configured to: select a corresponding according to a frame structure supported by the user terminal The frame structure type.

The transmitting device according to claim 9 or 10, wherein

12. A method for receiving high speed shared control channel information, comprising:

The user terminal monitors the high-speed shared control channel (HS-SCCH), and demodulates the received HS-SCCH, and after determining that the information carried on the HS-SCCH is the information of the user, according to the identifier used in the frame The type information determines a frame structure type of the HS-SCCH transmission to determine a transmission mode used by the High Speed Physical Downlink Shared Channel (HS-PDSCH), and the transmission mode includes at least: a pure single stream transmission mode, Multi-user multiple input multiple output (MU-MIMO) single stream transmission mode, or single user multiple input multiple output (SU-MIMO) dual stream transmission mode.

13. The method of claim 12, wherein

14. The method of claim 12 or 13, the method further comprising:

15. The method of claim 12, the method further comprising:

When it is judged that the transmission mode used by the HS-PDSCH is the MU-MIMO single stream transmission mode, the Midamble code group used by the user is determined according to the information in the frame.

16. A receiving device for high speed shared control channel information, comprising a receiving module and a demodulating module, wherein:

The demodulation module is configured to: demodulate the received HS-SCCH, and determine the

After the information carried on the HS-SCCH is the information of the user, the frame structure type of the HS-SCCH transmission is determined according to the information used for the identifier type in the frame to determine a high-speed physical downlink shared channel. (HS-PDSCH) A transmission mode used, the transmission mode includes at least: a pure single stream transmission mode, a multi-user multiple input multiple output (MU-MIMO) single stream transmission mode, or a single user multiple input multiple output (SU-MIMO) Dual stream transmission mode.

17. The receiving device according to claim 16, wherein

18. The receiving device according to claim 17, wherein