WO2013185529A1

WO2013185529A1 - Scheduling method and device for terminal device

Info

Publication number: WO2013185529A1
Application number: PCT/CN2013/076212
Authority: WO
Inventors: 张惠英; 张英
Original assignee: 电信科学技术研究院
Priority date: 2012-06-12
Filing date: 2013-05-24
Publication date: 2013-12-19
Also published as: CN103491640B; CN103491640A

Abstract

A scheduling method and a device for a terminal device are disclosed in the embodiment of the present invention, which relates to the wireless communication technical field and is used to resolve the problem of how to implement a scheduling scheme on the basis of a group. In the present invention, after an access network device sends a RNTI assigned for the group for scheduling data transmission to each terminal device in said group, sends a RNTI scrambled scheduling information including inner-group identification of said terminal device to the terminal device needs to be scheduled. Said terminal device detects said RNTI scrambled scheduling information including inner-group identification of said terminal device, and performs data transmission according to the detected scheduling information. Therefore, the scheduling scheme on the basis of the group is implemented in the present solution.

Description

Terminal device scheduling method and device

The present application claims priority to Chinese Patent Application No. 201210193625.5, entitled "Scheduling Method and Apparatus for Terminal Equipment", filed on June 12, 2012, the entire contents of which is incorporated herein by reference. .

Technical field

The present invention relates to the field of wireless communications, and in particular, to a scheduling method and device for a terminal device. Background technique

Currently, in the LTE (Long Term Evolution) system, the PDCCH (Physical Downlink Control Channel) carries DCI (Downlink Control Information), which may include scheduling information of downlink and uplink data transmissions. Uplink power control information. Depending on the purpose and content of the information, 13 DCI formats (formats) are given in the current standard, as shown in Table 1.

The bit length of each DCI format is calculated based on the 20 MHz system bandwidth and the base station configuration of two antenna ports. Part of the DCI format length is related to the number of antennas and system bandwidth.

Table 1 In Release 10 (version 10), the specific description of each DCI format is as follows:

As shown in Table 2 below, DCI format 0 mainly transmits control information related to PUSCH scheduling. The number of information bits of DCI Format 0 should be the same as the number of information bits of FormatlA. If it is less than the number of information bits of FormatlA, the information bits of FormatO should be padded with zeros.

Table 2

As shown in Table 3 below, DCI format 1 mainly transmits control information related to downlink scheduling. Can be used for single port 0, Single port 5 and transmit diversity. The distinction is made by the number of antenna ports and the transmission mode configured by RRC (Radio Resource Control). The differentiation of DCI formatl/lA is performed by the DCI length.

table 3

If the number of information bits in Format 1 is the same as Format 0/1 A, you need to fill 1 bit "0". If the number of information bits of Formatl is ambiguous size, the UE (terminal device) may not be able to uniquely determine the starting position of a CCE (aggregation level) when blindly checking the PDCCH. Therefore, it is necessary to perform a zero-padding operation on these information bits so that the length thereof is not a fuzzy length, and at the same time, it is different from the number of information bits of the Format 0/1A. These blur lengths are { 12, 14, 16 , 20, 24, 26, 32, 40, 44, 56} bits.

DCI format 1A is mainly used to transmit control information related to downlink scheduling, and supports the delivery of random access commands. DCI format 1A can only be used for single port 0 or transmission diversity. The number of ports configured by the system can be used to learn the multiple input and output modes.

The number of information bits of Formatl A and FormatO should be the same. If the number of information bits is less than FormatO, the information bits of Formatl A should be padded with zeros.

The processing of fuzzy bits in Formatl A is the same as Formatl.

DCI formatlA can be used to: Application Scenario 1: An indication of the PDSCH of a single codeword scheduled in compact mode.

Application Scenario 2: Scheduling of public information, its CRC (Cyclic Redundancy Check) code is composed of RA-RNTI (Radio Access Temporary Identifier), P-RNTI (Paging Radio Network Temporary Identifier), or

SI-RNTI (System Information Wireless Network Temporary Identification) is scrambled.

Application Scenario 3: A command for initiating a random access procedure through the PDCCH.

The bit length and meaning of the information field of FormatlA when applying scenario 1 are shown in Table 4.

The bit length and meaning of the information field of FormatlA when applying scenario 2 are shown in Table 5.

Information field

Carrier indicator 0 or 3

Flag for formatO/format 1 A 1

Differentiation

Localized/Distributed VRB 1

Assignment flag

The bit length and meaning of the information field of FormatlA when applying scenario 3 are shown in Table 6.

DCI formatlB is used to transmit the PDSCH transmission indication of the precoded single codeword in compact mode. The processing of the fuzzy bits in Format 1 B is the same as Format 1.

As shown in Table 7 below, the DCI format IB includes two fields related to the MIMO mode: TPMI information for precoding and PMI confirmation for precoding. TPMI information The codebook index used to indicate the single layer transmission. If the PMI acknowledgment bit is 0, it indicates that the base station precodes the precoding vector indicated by the TPMI field; if the PMI acknowledgment bit is 1, it indicates that the latest PMI information reported by the PUSCH channel is used. .

Control information

Carrier indicator 0 or 3

Localized/Distributed VRB assignment 1

DCI format 1C is used for scheduling PDSCH of single codewords in a more compact mode, mainly for scheduling common control information.

Format 1C uses its dedicated resource allocation type 2, which only supports distributed transmission, and the maximum TBS (transport block size) is 1736.

Table 8

DCI formatlD is used for compact mode pre-coding and PDSCH scheduling with single codewords carrying power offset, mainly for multi-user MU-MIMO scheduling. formatlD uses its dedicated resource allocation type 2, and the fuzzy bits in Format 1 D are treated the same as Format 1.

The DCI format ID is mainly used for downlink multi-user scheduling. Table 9 below includes two fields related to MIMO signaling: TPMI information for precoding and Downlink power offset „ TPMI information is the same as DCI format IB, and is used to indicate single layer transmission. The codebook index is mainly used to quickly indicate the user's power offset. When it is 0, it means offset ^{_ 1 () 1 (§} 1. ² (©, when 1 means offset OdB (not biased) shift).

Format2 uses its dedicated resource allocation type 0/1. Format2 can also be used to schedule the transmission of a codeword. At this time, only the information of one codeword area is detected. The fuzzy bits of Format2 are treated the same as Formatl.

DCI format2 is used for the transmission indication of the PDSCH in the case of closed-loop spatial multiplexing of dual codewords. As shown in Table 10 below, there are two domains related to the MIMO mode: a transport block to codeword swap flag and a precoding information. The transport block codeword exchange indication flag is used to indicate a mapping relationship between the transport block and the codeword.

The precoding information field is used to indicate information such as the MIMO mode, precoder, and the like. In the case of port 2, the precoding information uses 3 bits; in the case of 4 ports, the precoding information uses 6 bits.

Control information

Carrier indicator 0 or 3

Resource allocation header(0/l) 1

(if the downstream bandwidth is less than or equal to 10 PRB

Resource block), there will be no resource allocation indication and false

Set the resource allocation type 0)

Resource block assignment " /

TPC command for PUCCH 2

Downlink Assignment Index 2 (only for TDD)

HARQ process number 3 bits (FDD), 4 bits (TDD) Transport block to codeword swap flag 1

(transport block to codeword exchange identifier)

Transport block 1 (transport block 1)

Modulation and coding scheme 5

New data indicator 1

Redundancy version 2

Transport block 2

Modulation and coding scheme 5

New data indicator 1

Redundancy version 2

Precoding information 3/6 (2 ports 3bit, 4 ports 6bit)

Table 10

Format2A uses its dedicated resource allocation type 0/1. Format2A can also be used to schedule the transmission of a codeword. At this time, only the information of one codeword area is detected. The fuzzy bits of Format2A are treated the same as Formatl.

DCI format 2A is used for the transmission indication of the PDSCH in the case of open-loop spatial multiplexing of dual codewords. As shown in Table 11 below, there are two domains related to the MIMO mode: transport block to codeword exchange identifier and precoding information. Transport Block Code The word exchange indicator has the same meaning as DCI format 2. For port 2, there is no precoding information, or the precoding information is 0 bits. If the codeword is 2, use double-layer spatial multiplexing; if the codeword is 1, use transmit diversity. For 4-port, the precoding information is indicated by 2 bits.

Control information

Carrier indicator 0 or 3

Resource allocation header(0/l) 1 (if the downstream bandwidth is less than or equal to 10 PRB

(physical resource block), there will be no resource allocation indication

And assume that the resource allocation type is used 0)

Resource block assignment " /

TPC command for PUCCH 2

Downlink Assignment Index 2 (only for TDD)

HARQ process number 3 bits (FDD), 4 bits (TDD)

Transport block to codeword swap flag 1

Transport block 1

Modulation and coding scheme 5

New data indicator 1 Redundancy version 2

Transport block 2

Modulation and coding scheme 5

New data indicator 1

Redundancy version 2

Precoding information 0/2 (2 ports 0bit, 4 ports 2bit)

Table 11

As shown in Table 12, DCI format2B is used to enhance the PDSCH transmission indication in the case of dual-stream transmission. Specialized: Ports 7 and 8, or, support single-antenna port: Port 7 or Port 8.

Control information

Carrier indicator 0 or 3

(physical resource block), there will be no resource allocation indication and assume the resource allocation type is used 0)

Resource block assignment " /

TPC command for PUCCH 2

Downlink Assignment Index 2 (only for TDD)

HARQ process number 3 bits (FDD), 4 bits (TDD)

Scrambling identity 1

SRS request 0 or 1, TDD

Transport block 1

Modulation and coding scheme 5

New data indicator 1

Redundancy version 2

Transport block 2

Modulation and coding scheme 5

New data indicator 1

Redundancy version 2

Table 12

As shown in Table 13, DCI format 2C supports Layer 8 transmission and PDSCH scheduling for ports 7-14.

Control information

Carrier indicator 0 or 3 Resource allocation header(0/l) 1

(If the downstream bandwidth is less than or equal to 10 PRB (physical resource block), there will be no resource allocation indication and false

Set the resource allocation type 0)

Resource block assignment " /

TPC command for PUCCH 2

Downlink Assignment Index 2 (only for TDD)

HARQ process number 3 bits (FDD), 4 bits (TDD)

Antenna port(s), scrambling identity 3

And number of layers (antenna port, disturbance

Code identification and number of layers)

SRS request 0 or 1, TDD

Transport block 1

Modulation and coding scheme 5

New data indicator 1

Redundancy version 2

Transport block 2

Modulation and coding scheme 5

New data indicator 1

Redundancy version 2

Table 13

As shown in Table 14, DCI format3 is used to transmit a set of TPC (command) of PUCCH and PUSCH groups using 2bit-TPC.

The length of Format 3 is equal to the length of the information bits after the FormatO bit is filled.

Table 14 As shown in Table 15, DCI format 3A is mainly used to transmit bit power control commands, and carries one user's power control information with 1 bit.

Table 15

As shown in Table 16, DCI Format 4 is used for scheduling of one uplink cell PUSCH in the multi-antenna port transmission mode.

Table 16 Currently, in UMTS (Universal Mobile Telecommunications System), downlink scheduling information is transmitted through an HS-SCCH (Shared Control Channel for HS-DSCH, a shared control channel of a high speed downlink shared channel). The HS-SCCH type (type) mainly includes: HS-SCCH typel, HS-SCCH type2, HS-SCCH type3, HS-SCCH type4, HS-SCCH type5, HS-SCCH type6, HS-SCCH type7, HS-SCCH type8 And HS-SCCH type9.

HS-SCCH typel is a structure of traditional HSDPA (High Speed Downlink Packet Access) scheduling. This type is applied when there is no MIMO configured and the variable high speed downlink shared channel half state (continuous scheduling HS_DSCH_SPS_STATUS) is false (FALSE). Its structure is shown in Figure 1. Where CCS is the channelization code set, TS is the time slot, MOD is the modulation mode, TBS is the transmission block size, HAP is the HARQ process, RV is the redundancy version, NDI is the new data indication, and HCSN is the HS-SCCH cyclic sequence number. .

HS-SCCH type 2 is a semi-persistent scheduling for CPC. The condition of the type application is: The UE is not configured in

MIMO mode but the variable HS_DSCH_SPS_STATUS is true (TRUE); or the UE is configured in MIMO mode and the variable HS DSCH SPS STATUS is TRUE and the MIMO SF mode for HS-PDSCH dual stream is SF1. The structure of HS-SCCH type 2 is shown in Figure 2. Among them, RRPI is a resource repeat pattern indication.

HS-SCCH type3 is a retransmission for CPC. The condition of the type application is: the UE is not configured in the MIMO mode but the variable HS_DSCH_SPS_STATUS is TRUE; or the UE is configured in the MIMO mode and the variable HS DSCH SPS STATUS is TRUE and the MIMO SF mode for HS-PDSCH dual stream is SF1. The structure of HS-SCCH type3 is shown in Figure 3.

The HS-SCCH type 4 is used for single-stream transmission. The conditions are as follows: It is configured in MIMO mode, and the dual stream only supports SF=1 transmission. The structure of HS-SCCH type 4 is shown in Figure 4.

HS-SCCH type5 is used for dual-stream transmission. The conditions are as follows: Configured in MIMO mode, and dual-stream only supports

SF=1 transmission. The structure of HS-SCCH type 5 is shown in Figure 5.

HS-SCCH type 6 is a semi-persistent scheduling for CPC. The condition of the type application is: the UE is not configured in the MIMO mode but the variable HS_DSCH_SPS_STATUS is TRUE; or the UE is configured in the MIMO mode and the variable HS DSCH SPS STATUS is TRUE and the MIMO SF mode for HS-PDSCH dual stream is SF1/SF16. The structure of HS-SCCH type 6 is shown in Figure 6. Among them, Flag is the identifier, start code is the start code, stop code is the termination code, reserved is reserved.

HS-SCCH type 7 is a retransmission for CPC. The condition of the type application is: the UE is not configured in the MIMO mode but the variable HS_DSCH_SPS_STATUS is TRUE; or the UE is configured in the MIMO mode and the variable HS DSCH SPS STATUS is TRUE and the MIMO SF mode for HS-PDSCH dual stream is SF1/SF 16. The structure of HS-SCCH type7 is shown in Figure 7. Among them, PTR is a pointer to the previous transmission.

HS-SCCH type8 is used for single-stream transmission. The conditions are as follows: Configured in MIMO mode, and dual stream supports SF=1 also supports transmission of SF=16. The structure of the HS-SCCH type 8 is as shown in Fig. 8. The type flag is a type identifier, the field flag is i or an identifier, and the special information is special information.

HS-SCCH type9 is used for dual-stream transmission. The conditions are as follows: It is configured in MIMO mode, and dual stream supports both SF=1 and SF=16 transmission. The structure of HS-SCCH type 9 is shown in Figure 9.

Currently, in the general UMTS, uplink scheduling information is transmitted through an E-AGCH (Enhanced Access Grant CHannel). Types of E-AGCH include: E-AGCH typel and E-AGCH type2.

E-AGCH typel is a structure of conventional HSUPA (High Speed Packet Uplink Access) scheduling. This type is applied when the half-state continuous scheduling (E_DCH_SPS_STATUS) of the dedicated channel with variable enhancement is FALSE. The structure is shown in Figure 10. Among them, PRRI is power resource related information, CRRI is code channel resource related information, TRRI is time slot resource related information, ECSN is E-AGCH cyclic sequence number, RDI is resource continuous indication, and EI is E-HICH (E-DCH HARQ) The acknowledgment indicator channel, the enhanced dedicated transport channel hybrid automatic request process acknowledgment indicator channel indication, and the EM is an E-UCCH (E-DCH Uplink Control Channel) number indication.

If MU-MIMO is introduced, the condition of the E-AGCH typel application needs to be changed, that is, the condition used by E-AGCH typel is: The variable E_DCH_SPS_STATUS is FALSE and the UE is not configured in MU-MIMO mode.

The current use condition of E-AGCH type 2 is that the variable E_DCH_SPS_STATUS is TRUE. Its structure is shown in Figure 11.

MTC (Machine Type Communication) is a new communication concept. Its purpose is to combine many different types of communication technologies, such as: machine-to-machine communication, machine control communication, human-computer communication, mobile Connected communications to promote social production and lifestyle development. It is expected that the business of human-to-human communication in the future may only account for 1/3 of the entire terminal equipment market, and a larger number of communications are MTC communication services. Sometimes, MTC communication is also known as M2M (Machine-to-machine) communication or the Internet of Things.

Current mobile communication networks are designed for communication between people, such as: determination of network capacity. If it is desired to utilize the mobile communication network to support MTC communication, it is necessary to optimize the mechanism of the mobile communication system according to the characteristics of the MTC communication, so that it can be better in the case where the traditional human-to-human communication is not affected or less affected. Implement MTC communication.

Some features that may be recognized in the current MTC communication are: MTC devices have low mobility; MTC devices and network side data transmission time is controllable; MTC network and network side data transmission for data transmission real-time The requirements are not high, that is: time-tolerant; MTC equipment is limited in energy and requires extremely low power consumption; only small data volume transmission is performed between the MTC device and the network side; MTC devices can be managed in groups; and many more.

An actual MTC device can have one or more of the features described above.

According to the introduction of the foregoing background art, in the prior art, scheduling is performed for a single terminal device, and the network needs to allocate a separate RNTI for each terminal device to distinguish the scheduled terminal device, and the number of the terminal device increases with the addition of the MTC application. With the rapid growth, group application has become a method to solve the problem of a large number of terminal devices in the network. How to schedule the group is a key part, but there is no implementation method based on group scheduling. Summary of the invention

The embodiment of the invention provides a scheduling method and device for a terminal device, which are used to solve the problem of how to implement a group-based scheduling scheme.

A scheduling method for a terminal device is applied to a communication scheme of a group including a plurality of terminal devices, the method comprising: the access network device transmitting, to the group, a radio network temporary identifier RNTI for scheduling data transmission, to the group Each terminal device in the group;

The access network device sends, to the terminal device in the group that needs to be scheduled, the scheduling information that is scrambled by the RNTI and includes the in-group identifier of the terminal device, to schedule the terminal device to perform data transmission.

A data transmission method for a terminal device is applied to a communication scheme of a group including a plurality of terminal devices, the method comprising:

The terminal device in the group receives the radio network temporary identifier RNTI sent by the access network device for scheduling data transmission; the terminal device in the group detects the scheduling information including the intra-group identifier of the terminal device scrambled by using the RNTI, And performing data transmission according to the detected scheduling information.

An access network device, where the access network device includes:

a sending unit, configured to send a radio network temporary identifier RNTI for scheduling data transmission to the group, to each terminal device in the group;

And a scheduling unit, configured to send, to the terminal device that needs to be scheduled in the group, scheduling information that is scrambled by the RNTI and includes an in-group identifier of the terminal device, to schedule the terminal device to perform data transmission.

A terminal device, the terminal device comprising:

a receiving unit, configured to receive a radio network temporary identifier RNTI for scheduling data transmission sent by the access network device, and a detecting unit, configured to detect scheduling information that is scrambled by using the RNTI and includes an intra-group identifier of the terminal device; And a transmission unit, configured to perform data transmission according to the detected scheduling information.

In this solution, after the RNTI for scheduling data transmission is sent to each terminal device in the group, the access network device sends, to the terminal device that needs to be scheduled, the device that is scrambled by using the RNTI and includes the terminal device. Intra-group identification Scheduling information, the terminal device detects scheduling information including the intra-group identifier scrambled by the RNTI, and performs data transmission according to the detected scheduling information. It can be seen that the scheme implements a group-based scheduling scheme. DRAWINGS

1 to 9 are schematic diagrams showing the information format of the HS-SCCH in the background art;

Figure 10-11 is a schematic diagram of an information format of an E-AGCH in the background art;

FIG. 12 is a schematic flowchart of a method according to an embodiment of the present disclosure;

FIG. 13 is a schematic flowchart of another method according to an embodiment of the present disclosure;

FIG. 14 is a schematic structural diagram of a device according to an embodiment of the present disclosure;

FIG. 15 is a schematic structural diagram of another device according to an embodiment of the present disclosure;

FIG. 16 is a schematic structural diagram of an access network device according to an embodiment of the present disclosure;

FIG. 17 is a schematic structural diagram of a terminal device according to an embodiment of the present invention. detailed description

In order to solve the problem of how to implement the group-based scheduling scheme, the embodiment of the present invention provides a scheduling and data transmission method of a terminal device, which is applied to a communication scheme of a group including multiple terminal devices. In the method, the access network device Sending, to the terminal device that needs to be scheduled, the radio network temporary identifier (RNTI) for scheduling data transmission that is allocated for the group to the terminal device that needs to be scheduled, and the group that includes the terminal device that is scrambled by using the RNTI The scheduling information of the identifier, the terminal device detects scheduling information including the intra-group identifier of the terminal device scrambled by the RNTI, and performs data transmission according to the detected scheduling information.

Referring to FIG. 12, a scheduling method of a terminal device according to an embodiment of the present invention includes the following steps:

Step 120: The access network device sends the RNTI allocated for the group to schedule the data transmission to each terminal device in the group;

Step 121: The access network device sends, to the terminal device that needs to be scheduled in the group, scheduling information that is scrambled by the RNTI and includes the in-group identifier of the terminal device, to schedule the terminal device to perform data transmission.

Specifically, for the LTE (Long Term Evolution) system, the RNTI for scheduling data transmission sent in step 120 is C-RNTI (Cell Radio Network Temporary Identity);

Correspondingly, the specific implementation of step 121 can be as follows:

The base station transmits, by using the PDCCH, a DCI that is scrambled by the C-RNTI and includes an intra-group identifier of the terminal device that needs to be scheduled, to schedule the terminal device to perform data transmission. The specific implementation of step 120 can be as follows:

After receiving the data by each terminal device in the PDCCH scheduling group that is scrambled by the G-RNTI (Group Radio Network Temporary Identity), the base station transmits, by using the PDCCH, the C-RNTI that is scrambled by the G-RNTI and includes the C-RNTI allocated for the group. Configuration information.

Specifically, for the uplink transmission of the UMTS (Universal Mobile Telecommunications System), the RNTI for scheduling data transmission sent in step 120 is an E-RNTI (Enhanced Wireless Network Temporary Identity);

Correspondingly, the specific implementation of step 121 can be as follows:

The base station transmits, by using the E-AGCH, scheduling information of the intra-group identifier that is scrambled by the E-RNTI and includes the terminal device that needs to be scheduled, to schedule the terminal device to perform uplink data transmission.

Specifically, for downlink transmission of UMTS, the RNTI for scheduling data transmission sent in step 120 is

H-RNTI;

Correspondingly, the specific implementation of step 121 can be as follows:

The base station transmits, by using the HS-SCCH, scheduling information that is scrambled by the H-RNTI and includes an intra-group identifier of the terminal device that needs to be scheduled, to schedule the terminal device to perform downlink data transmission.

For downlink transmission and uplink transmission of UMTS, the specific implementation of step 120 can be as follows:

After receiving the data by each terminal device in the HS-SCCH scheduling group scrambled by the G-RNTI, the RNC transmits the E-RNT and the H-RNTI allocated for the group by using the G-RNTI to be scrambled through the HS-SCCH. Configuration information.

Referring to FIG. 13, an embodiment of the present invention provides a data transmission method for a terminal device, including the following steps: Step 130: A terminal device in a group receives an RNTI sent by an access network device for scheduling data transmission;

Step 131: The terminal device in the group detects scheduling information that is scrambled by the RNTI and includes the in-group identifier of the terminal device, and performs data transmission according to the detected scheduling information.

Specifically, for the LTE system, the RNTI for scheduling data transmission received in step 130 is a C-RNTI; correspondingly, the specific implementation of step 131 may be as follows:

The terminal equipment in the group detects, on the PDCCH, the DCI that is scrambled by the C-RNTI and contains the intra-group identifier of the terminal device that needs to be scheduled.

The specific implementation of step 130 can be as follows:

After detecting the downlink scheduling information that is scrambled by the G-RNTI on the PDCCH, the terminal device in the group receives, on the PDCCH, the C-RNTI that is scrambled by the G-RNTI and includes the C-RNTI allocated for the group, according to the downlink scheduling information. Configuration information.

Specifically, for uplink transmission of UMTS, the RNTI received in step 130 for scheduling data transmission is

E-RNTI; Correspondingly, the specific implementation of step 131 can be as follows:

The terminal equipment in the group detects, on the E-AGCH, scheduling information of the intra-group identifier that is scrambled by the E-RNTI and includes the terminal equipment to be scheduled.

Specifically, for the downlink transmission of the UMTS, the RNTI used for scheduling data transmission received in step 130 is an H-RNTI;

Correspondingly, the specific implementation of step 131 can be as follows:

The terminal equipment in the group detects, on the HS-SCCH, scheduling information of the intra-group identifier that is scrambled by the H-RNTI and includes the terminal equipment that needs to be scheduled.

For downlink transmission and uplink transmission of UMTS, the specific implementation of step 130 can be as follows:

After detecting the downlink scheduling information scrambled by the G-RNTI on the HS-SCCH, the terminal equipment in the group receives, on the HS-SCCH, the scrambling using the G-RNTI according to the downlink scheduling information, and includes the allocation for the group. Configuration information of E-RNTI and H-RNTI.

The G-RNTI in the present invention is a newly defined terminal device temporary identifier, which is predefined for all terminal devices that are applicable to group communication, and may be predefined in a protocol, or a new field is added through the system broadcast. The notification is sent to each terminal device, or the new RRC message is used to notify each terminal device.

The access network device (the RNC in the UMTS system or the e B in the LTE system) can obtain the number of terminal devices in the group by querying the information of the group to the core network, or the core network pre-sets the terminal devices in the group. The number is configured on the access network device.

The present invention will be described below in conjunction with specific embodiments:

Embodiment 1:

In the LTE system, a new DCI format X is added, which is used to send scheduling information of a PUSCH transmission to a group of terminal devices, and an in-group terminal device identification field is added in the DCI format X to distinguish the scheduled intra-group terminal devices. Take Table 17 as an example:

Control information

Carrier indicator 0 or 3

Flag for formatO/format 1 A 1

Differentiation ( 0/1 ) (DCI format 0/1 A

Distinguish the identity)

Frequency Hopping flag 1

Resource block assignment and "log ₂ 2)]

Hopping resource allocation Allocation and FM resource block allocation)

Modulation and coding scheme and 5

Redundancy version

Redundant version)

New data indicator 1

TPC command for PUCCH physical uplink 2

Control channel transmission power control command)

Cyclic shift for DM RS and OCC 3

Index (DM RS cyclic shift offset indication and

OCC index)

UL index 2

Downlink Assignment Index (downstream 2 (only TDD (time division duplex))

With instructions)

CSI request (channel status information request) 1 or 2

SRS request (probe reference signal request) 0 or 1

Resource allocation type 1

Type)

UE ID in group X

Table 17

Step 1: The base station allocates a C-RNTI for scheduling data transmission to the group, and sends the C-RNTI to the terminal device in the group; the terminal device receives and saves the C-RNTI;

Step 2: When the base station needs to perform data transmission in the scheduling group, the base station sends the DCI scrambled by using the C-RNTI through the PDCCH, where the DCI format uses the newly defined DCI format X, which includes the terminal device that needs to be scheduled. Intra-group identification;

Step 3: The terminal device in the group detects the DCI that is scrambled by the C-RNTI and includes the intra-group identifier of the terminal device on the PDCCH, and performs data transmission according to the scheduling information in the detected DCI.

Embodiment 2:

In the UMTS system, a new E-AGCH Type X is defined for the uplink transmission scheduling, and is used for transmitting scheduling information of the E-DCH transmission for a group of terminal devices, which includes the content included in the existing E-AGCH format in the background art. In addition, the terminal device identification domain in the group is also used to distinguish the scheduled intra-group terminal devices. Take Table 18 as an example:

PRRI CRRI TRRI ECSN RDI EI ENI UE ID UE ID (5 bits) (5 bits) (5 bits) (3 bits) (3 bits) (2 (3 bits) in (16 bits) group bits)

(x

Bits) Table 18 Step 1: The RNC allocates the E-RNTI for scheduling data transmission to the group to each terminal device in the group; the terminal device receives and saves the E-RNTI;

Step 2: When the terminal equipment in the scheduling group needs to perform uplink data transmission, the base station sends the scheduling information that is scrambled by using the E-RNTI through the E-AGCH, and the format of the scheduling information uses the newly defined E-AGCH Type X, where An in-group identifier containing the terminal device that needs to be scheduled;

Step 3: The terminal device in the group detects the scheduling information of the intra-group identifier that is scrambled by the E-RNTI and uses the E-RNTI to perform uplink data transmission according to the detected scheduling information.

Embodiment 3:

In the UMTS system, a new HS-SCCH Type X is defined for the downlink transmission scheduling, and scheduling information of the PDSCH transmission is sent for a group of terminal devices, which includes, in addition to the content included in the existing format of the HS-SCCH in the background art, Contains the terminal device identifier in the group, which is used to distinguish the scheduled intra-group terminal devices. Take Table 19 as an example:

Table 19

Step 1: The RNC allocates an H-RNTI for scheduling data transmission to the group, and sends the H-RNTI to the terminal device in the group; the terminal device receives and saves the H-RNTI;

Step 2: The base station (nodeb) sends the scheduling information that is scrambled by the H-RNTI through the HS-SCCH when the terminal equipment in the scheduling group needs to perform downlink data transmission. The format of the scheduling information is the newly defined HS-SCCH Type. X, which includes an intra-group identifier of the terminal device that needs to be scheduled;

Step 3: The terminal device in the group detects the scheduling information of the intra-group identifier that is scrambled by the H-RNTI and uses the H-RNTI to perform downlink data transmission according to the detected scheduling information.

Referring to FIG. 14, an embodiment of the present invention provides an access network device, where the access network device includes:

The sending unit 141 is configured to send, by using a radio network temporary identifier RNTI for scheduling data transmission that is allocated for the group, To each terminal device in the group;

The scheduling unit 142 is configured to send, to the terminal device that needs to be scheduled in the group, scheduling information that is scrambled by using the RNTI and includes an intra-group identifier of the terminal device, to schedule the terminal device to perform data transmission.

Further, the sending unit 141 is configured to:

For the Long Term Evolution (LTE) system, the cell radio network temporary identifier C-RNTI allocated for the group is sent to each terminal device in the group;

The scheduling unit 142 is configured to:

The downlink control information DCI, which is scrambled by the C-RNTI and includes an intra-group identifier of the terminal device that needs to be scheduled, is sent by the physical downlink control channel PDCCH to schedule the terminal device to perform data transmission.

Further, the sending unit 141 is configured to:

After the data is received by each terminal device in the PDCCH scheduling group that is scrambled by the group radio network temporary identifier G-RNTI, the configuration information including the C-RNTI allocated for the group, which is scrambled by the G-RNTI, is transmitted through the PDCCH.

Further, the sending unit 141 is configured to:

For the uplink transmission of the universal mobile communication system UMTS, the enhanced radio network temporary identifier E-RNTI allocated for the group is sent to each terminal device in the group;

The scheduling unit 142 is configured to:

The scheduling information of the intra-group identifier including the terminal device to be scheduled that is scrambled by using the E-RNTI is transmitted through the enhanced access grant channel E-AGCH to schedule the terminal device to perform uplink data transmission.

Further, the sending unit 141 is configured to:

For the downlink transmission of the UMTS, the H-RNTI allocated for the group is sent to each terminal device in the group; the scheduling unit 142 is configured to:

The HS-SCCH transmits the scheduling information of the intra-group identifier of the terminal device that needs to be scheduled by using the H-RNTI to schedule the terminal device to perform downlink data transmission.

Further, the sending unit 141 is configured to:

After receiving data by each terminal equipment in the HS-SCCH scheduling group scrambled by the G-RNTI, the E-RNTI and the H-RNTI allocated for the group are transmitted through the HS-SCCH and scrambled by the G-RNTI. Configuration information.

Referring to FIG. 15, an embodiment of the present invention provides a terminal device, where the terminal device includes:

The receiving unit 151 is configured to receive, by the access network device, a radio network temporary identifier RNTI for scheduling data transmission;

The detecting unit 152 is configured to detect, by using the RNTI, scheduling information that includes an intra-group identifier of the terminal device; The transmitting unit 153 is configured to perform data transmission according to the detected scheduling information.

Further, the receiving unit 151 is configured to:

For the long-term evolution LTE system, the cell radio network temporary identifier C-RNTI transmitted by the access network device is received; the detecting unit 152 is configured to:

The downlink control information DCI that is scrambled by the C-RNTI and includes an intra-group identifier of the terminal device that needs to be scheduled is detected on the physical downlink control channel PDCCH.

Further, the receiving unit 151 is configured to:

After detecting the downlink scheduling information that is scrambled by the group radio network temporarily identifying the G-RNTI, the PDCCH is received on the PDCCH according to the downlink scheduling information, and the C-RNTI that is scrambled for the group is received on the PDCCH. Configuration information.

Further, the receiving unit 151 is configured to:

For uplink transmission of the universal mobile communication system UMTS, receiving an enhanced wireless network temporary identifier E-RNTI transmitted by the access network device;

The detecting unit 152 is configured to:

The scheduling information of the intra-group identifier including the terminal device to be scheduled that is scrambled by the E-RNTI is detected on the enhanced access grant channel E-AGCH.

Further, the receiving unit 151 is configured to:

For the downlink transmission of the UMTS, receiving the H-RNTI sent by the access network device;

The detecting unit 152 is configured to:

The scheduling information of the intra-group identifier including the terminal device to be scheduled scrambled by the H-RNTI is detected on the shared control channel HS-SCCH of the high-speed downlink shared channel.

Further, the receiving unit 151 is configured to:

After detecting the downlink scheduling information scrambled by the G-RNTI on the HS-SCCH, receiving, on the HS-SCCH, the E-RNTI and the H that are allocated for the group by using the G-RNTI scrambled according to the downlink scheduling information. - RNTI configuration information.

As shown in FIG. 16, the access network device provided by the embodiment of the present invention includes: a first transmitter 161 and a first processor.

162

a first transmitter 161, configured to send, to the terminal devices in the group, an RNTI for scheduling data transmission allocated for the group;

The first processor 162 is configured to send, to the terminal device that needs to be scheduled in the group, scheduling information that is scrambled by using the RNTI and includes an in-group identifier of the terminal device, to schedule the terminal device to perform data transmission. Preferably, the first transmitter 161 is specifically configured to:

For the long-term evolution LTE system, the C-RNTI allocated to the group is sent to each terminal device in the group; the first processor 162 is specifically configured to:

And transmitting, by using the PDCCH, a DCI that is scrambled by the C-RNTI and includes an intra-group identifier of a terminal device that needs to be scheduled, to schedule the terminal device to perform data transmission.

Preferably, the first transmitter 161 is specifically configured to:

After receiving data by each terminal device in the PDCCH scheduling group scrambled by the group G-RNTI, the PDCCH is used to transmit configuration information including the C-RNTI allocated for the group, which is scrambled by the G-RNTI.

Preferably, the first transmitter 161 is specifically configured to:

For the uplink transmission of the UMTS, the enhanced radio network temporary identifier E-RNTI allocated for the group is sent to each terminal device in the group;

The first processor 162 is specifically configured to:

The scheduling information including the intra-group identifier of the terminal device that needs to be scheduled, which is scrambled by the E-RNTI, is sent by the E-AGCH to schedule the terminal device to perform uplink data transmission.

Preferably, the first transmitter 161 is specifically configured to:

For the downlink transmission of the UMTS, the H-RNTI allocated to the group is sent to each terminal device in the group; the first processor 162 is specifically configured to:

Preferably, the first transmitter 161 is specifically configured to:

As shown in FIG. 17, the terminal device provided by the embodiment of the present invention includes: a receiver 171, a second processor 172, and a second transmitter 173.

The receiver 171 is configured to receive an RNTI that is sent by the access network device and used to schedule data transmission.

The second processor 172 is configured to detect scheduling information that is scrambled by using the RNTI and includes an in-group identifier of the terminal device.

The second transmitter 173 is configured to perform data transmission according to the detected scheduling information.

Preferably, the receiver 171 is specifically configured to:

For the long-term evolution LTE system, the cell radio network temporary identifier C-RNTI sent by the access network device is received; the second processor 172 is specifically configured to: The downlink control information DCI including the intra-group identifier of the terminal device scrambled by the C-RNTI is detected on the physical downlink control channel PDCCH.

Preferably, the receiver 171 is specifically configured to:

The second processor 172 is specifically configured to:

The scheduling information including the intra-group identifier of the terminal device scrambled by the E-RNTI is detected on the enhanced access grant channel E-AGCH.

Preferably, the receiver 171 is specifically configured to:

The second processor 172 is specifically configured to:

The scheduling information including the intra-group identifier of the terminal device scrambled by the H-RNTI is detected on the shared control channel HS-SCCH of the high speed downlink shared channel.

Preferably, the receiver 171 is specifically configured to:

In summary, the beneficial effects of the present invention include:

In the solution provided by the embodiment of the present invention, the access network device sends the RNTI for scheduling data transmission to the terminal devices in the group, and then sends the RNTI to the scheduled terminal device to perform scrambling using the RNTI. The scheduling information of the intra-group identifier of the terminal device is detected, and the terminal device detects scheduling information including the intra-group identifier of the terminal device scrambled by the RNTI, and performs data transmission according to the detected scheduling information. It can be seen that the scheme implements a group-based scheduling scheme.

The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. The first place to provide these computer program instructions to a general purpose computer, special purpose computer, embedded processor or other programmable data processing device The processor is configured to generate a machine such that instructions executed by a first processor of a computer or other programmable data processing device are used to implement a block or blocks in a flow or a flow and/or block diagram of the flowchart The device specified in the function.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

Although the preferred embodiment of the invention has been described, it will be apparent to those of ordinary skill in the art that <RTIgt; Therefore, the appended claims are intended to be construed as including the preferred embodiments and the modifications

It is apparent that those skilled in the art can make various modifications and variations to the invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and modifications of the invention

Claims

Rights request

1. A scheduling method for terminal equipment, applied in a communication solution for a group containing multiple terminal equipment, characterized in that the method includes:

The access network device sends the wireless network temporary identifier RNTI assigned to the group for scheduling data transmission to each terminal device in the group;

The access network device sends the scheduling information scrambled using the RNTI and including the group identifier of the terminal device to the terminal device in the group that needs to be scheduled, so as to schedule the terminal device for data transmission.

2. The method according to claim 1, characterized in that, for the Long Term Evolution LTE system, the RNTI used for scheduling data transmission is the cell radio network temporary identity C-RNTI;

The access network device sends scheduling information scrambled using the RNTI and containing the group identifier of the terminal device to the terminal device in the group that needs to be scheduled, so as to schedule the terminal device for data transmission, specifically including:

The base station sends downlink control information DCI scrambled using the C-RNTI through the physical downlink control channel PDCCH and containing the group identification of the terminal equipment that needs to be scheduled, to schedule the terminal equipment for data transmission.

3. The method of claim 2, wherein the access network device sends the RNTI allocated to the group for scheduling data transmission to each terminal device in the group, specifically including:

After receiving data from each terminal device in the PDCCH scheduling group scrambled by the group wireless network temporary identifier G-RNTI, the base station sends configuration information including the C-RNTI allocated to the group scrambled by the G-RNTI through the PDCCH. .

4. The method according to claim 1, characterized in that, for the uplink transmission of the universal mobile communication system UMTS, the RNTI used for scheduling data transmission is the enhanced wireless network temporary identity E-RNTI;

The base station sends, through the enhanced access authorization channel E-AGCH, scheduling information scrambled using the E-RNTI and including the group identification of the terminal equipment that needs to be scheduled, to schedule the terminal equipment for uplink data transmission.

5. The method according to claim 1, characterized in that, for downlink transmission of UMTS, the RNTI used for scheduling data transmission is H-RNTI;

The base station sends scheduling information scrambled using the H-RNTI through the shared control channel HS-SCCH of the high-speed downlink shared channel and including the intra-group identification of the terminal equipment that needs to be scheduled, to schedule the terminal equipment for downlink data transmission.

6. The method according to claim 4 or 5, characterized in that the access network device allocates users to the group. The RNTI used to schedule data transmission is sent to each terminal device in the group, specifically including:

After the radio network controller RNC receives data from each terminal device in the HS-SCCH scheduling group scrambled by the G-RNTI, it sends the E-RNT scrambled by the G-RNTI through the HS-SCCH and includes the E-RNT allocated for the group. and H-RNTI configuration information.

7. A data transmission method for terminal equipment, applied in a communication solution for a group containing multiple terminal equipment, characterized in that the method includes:

The terminal equipment in the group receives the wireless network temporary identifier RNTI sent by the access network equipment for scheduling data transmission; the terminal equipment in the group detects the scheduling information scrambled using the RNTI and containing the group identification of the terminal equipment, And perform data transmission based on the detected scheduling information.

8. The method of claim 7, wherein for the Long Term Evolution LTE system, the RNTI used for scheduling data transmission is the cell radio network temporary identity C-RNTI;

The terminal equipment in the group detects the scheduling information scrambled using the RNTI and containing the group identification of the terminal equipment, specifically including:

The terminal equipment in the group detects the downlink control information DCI scrambled using the C-RNTI and containing the group identification of the terminal equipment on the physical downlink control channel PDCCH.

9. The method of claim 8, wherein the terminal equipment in the group receives the RNTI sent by the access network equipment for scheduling data transmission, which specifically includes:

After the terminal equipment in the group detects the downlink scheduling information scrambled by the group wireless network temporary identifier G-RNTI on the PDCCH, it receives the downlink scheduling information scrambled using the G-RNTI on the PDCCH according to the downlink scheduling information, including: Configuration information of C-RNTI allocated by the group.

10. The method according to claim 7, characterized in that, for the uplink transmission of the universal mobile communication system UMTS, the RNTI used for scheduling data transmission is an enhanced wireless network temporary identity E-RNTI;

The terminal equipment in the group detects the scheduling information scrambled using the E-RNTI on the enhanced access authorization channel E-AGCH and including the group identification of the terminal equipment.

11. The method of claim 7, wherein for downlink transmission of UMTS, the RNTI used for scheduling data transmission is H-RNTI;

The terminal equipment in the group detects and uses the shared control channel HS-SCCH of the high-speed downlink shared channel. Scheduling information scrambled by H-RNTI and containing the group identifier of the terminal device.

12. The method according to claim 10 or 11, characterized in that the terminal equipment in the group receives the RNTI sent by the access network equipment for scheduling data transmission, specifically including:

After the terminal equipment in the group detects the downlink scheduling information scrambled by the G-RNTI on the HS-SCCH, it receives the downlink scheduling information scrambled by the G-RNTI on the HS-SCCH according to the downlink scheduling information, including the information for the group. Configuration information of allocated E-RNTI and H-RNTI.

13. An access network device, characterized in that the access network device includes:

The sending unit is used to send the wireless network temporary identifier RNTI allocated to the group for scheduling data transmission to each terminal device in the group;

The scheduling unit is configured to send scheduling information scrambled using the RNTI and containing the group identification of the terminal device to the terminal device in the group that needs to be scheduled, so as to schedule the terminal device for data transmission.

14. The access network device according to claim 13, wherein the sending unit is specifically configured to: for the Long Term Evolution LTE system, send the cell radio network temporary identifier C-RNTI assigned to the group to the group. Each terminal equipment within;

The scheduling unit is specifically used for:

Downlink control information DCI scrambled using the C-RNTI and containing the group identification of the terminal equipment that needs to be scheduled is sent through the physical downlink control channel PDCCH to schedule the terminal equipment for data transmission.

15. The access network device according to claim 14, wherein the sending unit is specifically configured to: after each terminal device in the PDCCH scheduling group scrambled by the group wireless network temporary identifier G-RNTI receives data , sending configuration information including the C-RNTI allocated to the group scrambled using the G-RNTI through the PDCCH.

16. The access network device according to claim 13, wherein the sending unit is specifically configured to: for the uplink transmission of the Universal Mobile Communications System UMTS, allocate the enhanced wireless network temporary identity E- to the group. RNTI is sent to each terminal device in the group;

The scheduling unit is specifically used for:

Scheduling information scrambled using the E-RNTI and containing the group identification of the terminal equipment that needs to be scheduled is sent through the enhanced access authorization channel E-AGCH to schedule the terminal equipment for uplink data transmission.

17. The access network device according to claim 13, wherein the sending unit is specifically configured to: for downlink transmission of UMTS, send the H-RNTI allocated to the group to each terminal device in the group. ; The scheduling unit is specifically used for:

Scheduling information scrambled using the H-RNTI and including the group identification of the terminal equipment that needs to be scheduled is sent through the shared control channel HS-SCCH of the high-speed downlink shared channel to schedule the terminal equipment for downlink data transmission.

18. The access network device according to claim 16 or 17, wherein the sending unit is specifically configured to: after receiving data from each terminal device in the HS-SCCH scheduling group scrambled by G-RNTI, Configuration information including the E-RNTI and H-RNTI allocated for the group, scrambled using the G-RNTI, is sent through the HS-SCCH.

19. A terminal device, characterized in that the terminal device includes:

The receiving unit is configured to receive the wireless network temporary identifier RNTI sent by the access network device for scheduling data transmission; the detection unit is configured to detect the scheduling information scrambled using the RNTI and including the intra-group identifier of the terminal device; The transmission unit is used for data transmission according to the detected scheduling information.

20. The terminal device according to claim 19, wherein the receiving unit is specifically configured to: for the Long Term Evolution LTE system, receive the cell radio network temporary identifier C-RNTI sent by the access network device; the detecting unit Specifically used for:

Downlink control information DCI scrambled using the C-RNTI and including the intra-group identity of the terminal equipment is detected on the physical downlink control channel PDCCH.

21. The terminal equipment according to claim 20, wherein the receiving unit is specifically configured to: after detecting downlink scheduling information scrambled by the group wireless network temporary identity G-RNTI on the PDCCH, according to the downlink scheduling The information is received on the PDCCH using the G-RNTI scrambled configuration information containing the C-RNTI allocated for the group.

22. The terminal device according to claim 19, wherein the receiving unit is specifically configured to: receive the enhanced wireless network temporary identity E-RNTI sent by the access network device for uplink transmission of the universal mobile communication system UMTS. ;

The detection unit is specifically used for:

Scheduling information scrambled using the E-RNTI and including the intra-group identity of the terminal device is detected on the enhanced access authorization channel E-AGCH.

23. The terminal device according to claim 19, wherein the receiving unit is specifically configured to: for downlink transmission of UMTS, receive the H-RNTI sent by the access network device;

The detection unit is specifically used for:

Scheduling information scrambled using the H-RNTI and including the intra-group identity of the terminal equipment is detected on the shared control channel HS-SCCH of the high-speed downlink shared channel.

24. The terminal equipment according to claim 22 or 23, characterized in that the receiving unit is specifically configured to: after detecting downlink scheduling information scrambled by G-RNTI on the HS-SCCH, according to the downlink scheduling information Configuration information including the E-RNTI and H-RNTI allocated for the group, scrambled using the G-RNTI, is received on the HS-SCCH.