CN101801101A - Method and device for transmitting downlink control information - Google Patents
Method and device for transmitting downlink control information Download PDFInfo
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- CN101801101A CN101801101A CN201010119128A CN201010119128A CN101801101A CN 101801101 A CN101801101 A CN 101801101A CN 201010119128 A CN201010119128 A CN 201010119128A CN 201010119128 A CN201010119128 A CN 201010119128A CN 101801101 A CN101801101 A CN 101801101A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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Abstract
The invention discloses a method and a device for transmitting downlink control information by which a transmission mode of a terminal antenna port is indicated. The transmission method comprises the following steps: a base station sends the downlink control information for unlink scheduling to a user terminal when the base station schedules a physical uplink shared channel of the user terminal, wherein the downlink control information at least carries indication information for indicating enabled transmission blocks and a bit zone; when the base station determines that the physical uplink shared channel of the user terminal adopts a single-antenna port transmission mode or adopts a multi-antenna port transmission mode and one transmission block is enabled, the indication information is configured to indicate that one transmission block is enabled, and the zone bit is configured to indicate the port transmission mode; and when the base station determines that the physical uplink shared channel of the user terminal adopts a multi-antenna port transmission mode and two transmission blocks are enabled, the indication information is configured to indicate that two transmission blocks are enabled.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of transmission method and device of Downlink Control Information.
Background technology
At third generation partner program (The 3rd Generation Partnership Project, abbreviate 3GPP as) Long Term Evolution (Long Term Evolution, abbreviate LTE as) in the system, adopt the mode of base station centralized dispatching to control user terminal (User Equipment, abbreviate UE as) the transmission of Physical Uplink Shared Channel (Physical Uplink Shared Channel abbreviates PUSCH as).
The base station sends to object UE by Physical Downlink Control Channel (Physical Downlink Control Channel abbreviates PDCCH as) with the uplink scheduling information (uplink schedulinginformation) of Physical Uplink Shared Channel PUSCH.Physical Downlink Control Channel bearing downlink control information (DownlinkControl Information, abbreviate DCI as), comprising following/uplink scheduling information (downlink oruplink scheduling information), uplink transmission power control command etc.According to different Downlink Control Information, LTE system definition multiple descending control information format (DCI format).The uplink scheduling information of PUSCH is carried in the descending control information format 0 (DCI format 0).If UE detects the PDCCH with DCI format 0 form,, on the channel resource that is distributed, adopt indicated modulation coding mode and corresponding transmission power to send PUSCH then according to the uplink scheduling information that wherein comprises.
In the LTE system, Physical Uplink Shared Channel adopts the single antenna port transmission.The Physical Uplink Shared Channel of single antenna port transmission, a corresponding transmission block (Transport Block abbreviates TB as) and a code word (Codeword abbreviates CW as).
Senior Long Term Evolution (LTE-Advanced abbreviates LTE-A as) system is the evolution system of future generation of LTE system.In the LTE-A system, Physical Uplink Shared Channel can adopt the single antenna port transmission, also can adopt many antenna port transmission.When many antenna ports transmitted, LTE-A supported many antenna ports transmission of one or two transmission block, the corresponding code word of transmission block, and transmission block is corresponding one by one with code word.
But, in present LTE-A system, exist at the same time under the situation of single antenna port transmission pattern and many antenna ports transmission mode, can't carry out the scheduling of the Physical Uplink Shared Channel of different transmission mode by a kind of descending control information format to UE.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of transmission method and device of Downlink Control Information, by this Downlink Control Information indicating terminal antenna port transmission mode.
For solving the problems of the technologies described above, the invention provides a kind of transmission method of Downlink Control Information, comprising:
The base station is when the Physical Uplink Shared Channel of certain user terminal of scheduling, send the Downlink Control Information that is used for uplink scheduling to described user terminal, in described Downlink Control Information, carry the indication information and the flag bit that are used to indicate the transmission block that enables at least, described base station determines that the Physical Uplink Shared Channel of described user terminal adopts single antenna port transmission pattern, or when adopting many antenna ports transmission mode and a transmission block to enable, disposing transmission block of described indication information indication enables, and dispose described flag bit and be used to indicate the port transmission pattern, when described base station determines that the Physical Uplink Shared Channel of described user terminal adopts many antenna ports transmission mode and two transmission blocks to enable, dispose two transmission blocks of described indication information indication and enable.
Preferably, when two transmission blocks of the described indication information indication of described base station configuration enable, described flag bit is shone upon flag bit as transmission block to the code word intersection.
Preferably, after described user terminal receives described Downlink Control Information, judge the transmission block number that enables of described indication information indication, if a transmission block enables, then determine that according to described flag bit the transmission mode that Physical Uplink Shared Channel adopts is that single antenna port transmission pattern still is many antenna ports transmission mode; If two transmission blocks enable, determine that then the transmission mode that Physical Uplink Shared Channel adopts is many antenna ports transmission mode, transmission block is to the mapping mode of code word when determining to send Physical Uplink Shared Channel according to described flag bit.
Preferably, described indication information adopts implicit mode to indicate the number of the transmission block that enables.
Preferably, implicit in the following manner number of indicating the transmission block that enables: whether the new data indication joint instructions transmission block 1 of the modulation coding mode of transmission block 1 and redundancy version information, transmission block 1 enables; Whether the new data indication joint instructions transmission block 2 of the modulation coding mode of transmission block 2 and redundancy version information, transmission block 2 enables.
Preferably, described indication information adopts explicit way to indicate the number of the transmission block that enables.
For solving the problems of the technologies described above, the present invention also provides a kind of dispensing device of Downlink Control Information, comprises configuration module and sending module, wherein:
Described configuration module, be used for adopting single antenna port transmission pattern at the Physical Uplink Shared Channel of determining user terminal, or when adopting many antenna ports transmission mode and a transmission block to enable, transmission block of indication information indication that configuration is used for the Downlink Control Information of uplink scheduling enables, and dispose a flag bit and be used to indicate the port transmission pattern, and when the Physical Uplink Shared Channel of determining described user terminal adopts many antenna ports transmission mode and two transmission blocks to enable, dispose two transmission blocks of described indication information indication and enable;
Described sending module is used for sending the Downlink Control Information that comprises described indication information and flag bit at least to described user terminal.
Preferably, described configuration module also is used for when the Physical Uplink Shared Channel of determining described user terminal adopts many antenna ports transmission mode and two transmission blocks to enable, and described flag bit is intersected to code word as transmission block shine upon flag bit.
For solving the problems of the technologies described above, the present invention also provides a kind of receiving system of Downlink Control Information, comprises receiver module and transmission mode determination module, wherein:
Described receiver module is used to receive the Downlink Control Information that is used for uplink scheduling that the base station sends, and reads wherein indication information and flag bit;
Described transmission mode determination module, be used to judge the number of the transmission block that enables of described indication information indication, if a transmission block enables, then determine that according to described flag bit it still is many antenna ports transmission mode that Physical Uplink Shared Channel adopts single antenna port transmission pattern; If two transmission blocks enable, determine that then Physical Uplink Shared Channel adopts many antenna ports transmission mode.
Preferably, described transmission mode determination module is further used for judging that according to indication information when having two transmission blocks to enable, transmission block is to the mapping mode of code word when determining to send Physical Uplink Shared Channel according to the content of described flag bit.
By descending control information format of the present invention, both can dispatch the Physical Uplink Shared Channel of single antenna port transmission, can dispatch the Physical Uplink Shared Channel of many antenna port transmission again.
Embodiment
Hereinafter will describe the present invention in conjunction with the embodiments in detail.Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.
The sending method of the Downlink Control Information that the present invention proposes comprises: the base station is when the Physical Uplink Shared Channel of certain user terminal of scheduling, send the Downlink Control Information that is used for uplink scheduling to described user terminal, in described Downlink Control Information, carry the indication information and the flag bit that are used to indicate the transmission block that enables at least, when transmission block of described indication information indication enables, described flag bit is used for the port transmission pattern (single antenna port transmission pattern or many antenna ports transmission mode) of indicating Physical Uplink Shared Channel that this Downlink Control Information dispatches to adopt to described user terminal, when two transmission blocks of described indication information indication enable, represent that the port transmission pattern of the Physical Uplink Shared Channel employing that this Downlink Control Information is dispatched is many antenna ports transmission mode.
Preferably, when two transmission blocks of described indication information indication enable, described base station intersects as transmission block flag bit to code word shines upon flag bit (the transport block to codeword swap flag), is used for indicating user terminal and how carries out the mapping of transmission block to code word when adopting many antenna ports transmission mode to send Physical Uplink Shared Channel.
Descending control information format as herein described both can have been dispatched the Physical Uplink Shared Channel of single antenna port transmission, can dispatch the Physical Uplink Shared Channel of many antenna port transmission again, base station and the terminal described descending control information format of making an appointment, the transmission mode that the base station is adopted by above-mentioned indication information and its Physical Uplink Shared Channel of flag bit indicating terminal.Preferably, because the base station is different to the content of terminal scheduling during different transmission mode, the particular content of Downlink Control Information when therefore base station and terminal can be arranged different transmission mode, like this, after terminal is determined transmission mode, can read content in the Downlink Control Information according to the rule of making an appointment with the base station.
Particularly: the base station is before certain terminal transmission is used for the Downlink Control Information of uplink scheduling, determine the port transmission pattern of this terminal earlier, adopt the single antenna port transmission if determine the Physical Uplink Shared Channel of this terminal, then dispose indication information and enable, and described flag bit (being preferably 1 bit) is configured to indicate the single antenna port transmission to indicate a transmission block; Adopt many antenna port transmission if determine the Physical Uplink Shared Channel of this terminal, judge further that then adopting a transmission block still is two transmission blocks, if determine to adopt a transmission block, then dispose described flag bit to indicate many antenna port transmission, if determine to adopt two transmission blocks, then further determine the mapping mode of transmission block, dispose described flag bit to indicate this mapping mode to code word.
The base station determines that the method for transmission mode, the method for determining the transmission block number and definite transmission block all can realize according to correlation technique to the method for code word mapping mode.
Described transmission block intersects the mapping flag bit to code word and is used to indicate mapping from the transmission block to the code word, and is as shown in table 1.Under the uplink multi-antenna port transmission pattern, when two transmission blocks enable, from the transmission block to the code word, be mapped with dual mode, be respectively: transmission block 1 is mapped to code word 0, and transmission block 2 is mapped to code word 1; Be mapped to code word 1 with transmission block 1, transmission block 2 is mapped to code word 0.Wherein, the latter is called the intersection mapping from the transmission block to the code word.
Table 1
| Transport block to codeword swap flag value (transmission block is to code word intersection mapping flag bit value) | Code word 0 (enabling) | Code word 1 (enabling) |
| ??0 | Transmission block 1 | Transmission block 2 |
| Transport block to codeword swap flag value (transmission block is to code word intersection mapping flag bit value) | Code word 0 (enabling) | Code word 1 (enabling) |
| ??1 | Transmission block 2 | Transmission block 1 |
Under the uplink multi-antenna port transmission pattern, when a transmission block enabled, transmission block was mapped to code word 0, that is: when transmission block 1 enabled, transmission block 1 was mapped to code word 0; When transmission block 2 enabled, transmission block 2 is mapped to code word 0, and was as shown in table 2.
Table 2
| Transmission block 1 | Transmission block 2 | Code word 0 (enabling) | Code word 1 (not enabling) |
| Enable | Do not enable | Transmission block 1 | - |
| Do not enable | Enable | Transmission block 2 | - |
The base station sends to target terminal user with above-mentioned Downlink Control Information, after target terminal user is received described Downlink Control Information, the transmission block number that enables according to the indication information indication, determine the purposes of described flag bit: if a transmission block enables, described flag bit is single antenna, many antenna ports transmission mode configuration flag bit; If two transmission blocks enable, described flag bit is that transmission block arrives code word intersection mapping flag bit.
If a transmission block enables, and single antenna, many antenna ports transmission mode configuration flag bit indicate the Physical Uplink Shared Channel of described Downlink Control Information scheduling to adopt the single antenna port transmission, described user terminal reads described Downlink Control Information, adopts single antenna port transmission pattern to send Physical Uplink Shared Channel according to the scheduling of this information;
If a transmission block enables, and single antenna, many antenna ports transmission mode configuration flag bit indicate the Physical Uplink Shared Channel of described Downlink Control Information scheduling to adopt many antenna port transmission, or if two transmission blocks enable, described user terminal reads described Downlink Control Information, adopts many antenna ports transmission mode to send Physical Uplink Shared Channel according to the scheduling of this information.
Preferably, when described Downlink Control Information is used to dispatch the Physical Uplink Shared Channel of single antenna port transmission, described indication information indication transmission block 1 enables, transmission block 2 does not enable, described flag bit indicates the Physical Uplink Shared Channel of described Downlink Control Information scheduling to adopt the single antenna port transmission as single antenna, many antenna ports transmission mode configuration flag bit; After target terminal user is received this Downlink Control Information, determine to have only a transmission block to enable that (transmission block 1 enables according to the indication of indication information, transmission block 2 does not enable), read described 1 bit flag position again, after the transmission mode of determining Physical Uplink Shared Channel is the single antenna port transmission, read described Downlink Control Information according to rule with the single antenna port transmission pattern of base station agreement;
When described Downlink Control Information is used to dispatch the Physical Uplink Shared Channel of many antenna ports transmission that a transmission block enables, transmission block of described indication information indication enables that (transmission block 1 enables, transmission block 2 does not enable, or transmission block 2 enables, transmission block 1 does not enable), described flag bit indicates the Physical Uplink Shared Channel of described Downlink Control Information scheduling to adopt many antenna port transmission as single antenna, many antenna ports transmission mode configuration flag bit; After target terminal user is received this Downlink Control Information, determine to have only a transmission block to enable that (transmission block 1 enables according to the indication of indication information, transmission block 2 does not enable, or transmission block 2 enables, transmission block 1 does not enable), read described flag bit again, after the transmission mode of determining Physical Uplink Shared Channel is the transmission of many antenna ports, read described Downlink Control Information according to rule with many antenna ports transmission mode of base station agreement;
When described Downlink Control Information is used to dispatch the Physical Uplink Shared Channel of many antenna ports transmission that two transmission blocks enable, two transmission blocks of described indication information indication enable (transmission block 1 and transmission block 2 all enable), described flag bit to code word intersection mapping flag bit, is indicated the mapping from the transmission block to the code word as transmission block; After target terminal user is received this Downlink Control Information, define two transmission blocks according to the indication of indication information and enable (transmission block 1 and transmission block 2 all enable), after the transmission mode of determining Physical Uplink Shared Channel is many antenna port transmission, read described Downlink Control Information according to rule with many antenna ports transmission mode of base station agreement, when sending Physical Uplink Shared Channel, the mapping mode of indicating according to flag bit carries out the mapping of transmission block to code word.
Embodiment one
In the LTE-A system, when described Downlink Control Information is passed through in the base station, when dispatching certain user terminal with single antenna port transmission pattern or many antenna ports transmission mode transmission Physical Uplink Shared Channel, the described indication information and the flag bit that carry in the described Downlink Control Information are as shown in table 3, in the present embodiment, described indication information adopts implicit indicating mode:
Table 3
| Single antenna port transmission pattern | Bit number | Many antenna ports transmission mode (transmission block enables) | Bit number | Many antenna ports transmission mode (two transmission blocks enable) | Bit number |
| The modulation coding mode of transmission block 1 and redundancy versions | ??5 | The modulation coding mode of transmission block 1 and redundancy versions | ??5 | The modulation coding mode of transmission block 1 and redundancy versions | ??5 |
| The new data indication of transmission block 1 | ??1 | The new data indication of transmission block 1 | ??1 | The new data indication of transmission block 1 | ??1 |
| The modulation coding mode of transmission block 2 and redundancy versions | ??5 | The modulation coding mode of transmission block 2 and redundancy versions | ??5 | The modulation coding mode of transmission block 2 and redundancy versions | ??5 |
| The new data indication of transmission block 2 | ??1 | The new data indication of transmission block 2 | ??1 | The new data indication of transmission block 2 | ??1 |
| Single antenna/many antenna ports transmission mode configuration flag bit | ??1 | Single antenna/many antenna ports transmission mode configuration flag bit | ??1 | Transmission block is to code word intersection mapping flag bit | ??1 |
Wherein, whether enable pass is crossed transmission block 1 and transmission block 2 modulation coding mode and redundancy version information and the implicit indication of new data indication separately for transmission block 1 and transmission block 2.
Particularly, user terminal obtains modulation coding mode by modulation coding mode and the redundancy version information that the base station sends, and redundancy versions (0,1,2 or 3), what know local scheduling by new data indication is new data or data retransmission, and base station and user terminal are made an appointment and indicated enabling of transmission block by the content of redundancy versions and new data indication.For example: indicating value when the new data of certain transmission block was 1 (representing this scheduling new data transmission), and the redundancy versions of this transmission block be in 1,2 or 3 any the time, represent that then this transmission block does not enable, otherwise, represent that then this transmission block enables as long as above-mentioned condition is one of arbitrary not to be satisfied; Perhaps, if the new data of certain transmission block indication value was 0 (representing that this data dispatching retransmits), and the redundancy versions of this transmission block is 0, represents that then this transmission block does not enable, otherwise as long as above-mentioned condition is one of arbitrary not to be satisfied, represents that then this transmission block enables.
Above-mentioned implicit indicating mode is only for for example, and is not as a limitation of the invention.And according to the thought of above-mentioned implicit indication, the indication that can adopt the other guide in the Downlink Control Information to enable as transmission block.
When being single antenna port transmission pattern, transmission block 1 enables, transmission block 2 does not enable, or transmission block 2 enables, transmission block 1 does not enable, described flag bit is got 0 (or 1) as single antenna, many antenna ports transmission mode configuration flag bit, indicates the Physical Uplink Shared Channel of described Downlink Control Information scheduling to adopt the single antenna port transmission.
When being many antenna ports that transmission block enables transmission mode, transmission block 1 enables, transmission block 2 does not enable, or transmission block 2 enables, transmission block 1 does not enable, described flag bit is got 1 (or 0) as single antenna, many antenna ports transmission mode configuration flag bit, indicates the Physical Uplink Shared Channel of described Downlink Control Information scheduling to adopt many antenna port transmission.
When being two many antenna ports that transmission block enables transmission modes, transmission block 1 and transmission block 2 all enable, and described flag bit to code word intersection mapping flag bit, is indicated the mapping from the transmission block to the code word as transmission block.
Embodiment two
In the LTE-A system, when described Downlink Control Information is passed through in the base station, when dispatching certain user terminal with single antenna port transmission pattern or many antenna ports transmission mode transmission Physical Uplink Shared Channel, the described indication information and the flag bit that carry in the described Downlink Control Information are as shown in table 4, in the present embodiment, described indication information adopts explicit indicating mode:
Table 4
| Single antenna port transmission pattern | Bit number | Many antenna ports transmission mode (transmission block enables) | Bit number | Many antenna ports transmission mode (two transmission blocks enable) | Bit number |
| Transmission block 1 enabler flags position | ??1 | Transmission block 1 enabler flags position | ??1 | Transmission block 1 enabler flags position | ??1 |
| Transmission block 2 enabler flags positions | ??1 | Transmission block 2 enabler flags positions | ??1 | Transmission block 2 enabler flags positions | ??1 |
| Single antenna/many antenna ports transmission mode configuration flag bit | ??1 | Single antenna/many antenna ports transmission mode configuration flag bit | ??1 | Transmission block is to code word intersection mapping flag bit | ??1 |
Wherein, whether enable pass is crossed transmission block 1 and the transmission block 2 explicit indication in enabler flags position separately for transmission block 1 and transmission block 2, and the enabler flags position indication transmission block 1 of transmission block 1 enables, and the enabler flags position indication transmission block 2 of transmission block 2 enables.Also can indicate transmission block 1 or transmit fast 2 in other embodiments and enable by a shared flag bit.
When being single antenna port transmission pattern, transmission block 1 enables (transmission block 1 enabler flags position gets 1), transmission block 2 does not enable (transmission block 2 enabler flags positions get 0), described flag bit is got 0 (or 1) as single antenna, many antenna ports transmission mode configuration flag bit, indicates the Physical Uplink Shared Channel of described Downlink Control Information scheduling to adopt the single antenna port transmission.
When being many antenna ports that transmission block enables transmission mode, transmission block 1 enables, transmission block 2 does not enable that (transmission block 1 enabler flags position gets 1, transmission block 2 enabler flags positions get 0), or transmission block 2 enables, transmission block 1 does not enable that (transmission block 2 enabler flags positions get 1, transmission block 1 enabler flags position gets 0), described flag bit is got 1 (or 0) as single antenna, many antenna ports transmission mode configuration flag bit, indicates the Physical Uplink Shared Channel of described Downlink Control Information scheduling to adopt many antenna port transmission.
When being two many antenna ports that transmission block enables transmission modes, transmission block 1 and transmission block 2 all enable, and described flag bit to code word intersection mapping flag bit, is indicated the mapping from the transmission block to the code word as transmission block.
Realize the dispensing device (base station) of said method, comprise configuration module and sending module, wherein:
Described configuration module, be used for adopting single antenna port transmission pattern at the Physical Uplink Shared Channel of determining user terminal, or when adopting many antenna ports transmission mode and a transmission block to enable, transmission block of indication information indication that configuration is used for the Downlink Control Information of uplink scheduling enables, and dispose a flag bit and be used to indicate the port transmission pattern, and when the Physical Uplink Shared Channel of determining described user terminal adopts many antenna ports transmission mode and two transmission blocks to enable, dispose two transmission blocks of described indication information indication and enable;
Described sending module is used for sending the Downlink Control Information that comprises described indication information and flag bit at least to described user terminal.
Preferably, described configuration module also is used for when the Physical Uplink Shared Channel of determining described user terminal adopts many antenna ports transmission mode and two transmission blocks to enable, and described flag bit is intersected to code word as transmission block shine upon flag bit.
Preferably, the implicit in the following manner number of indicating the transmission block that enables of described configuration module: whether the new data indication joint instructions transmission block 1 of the modulation coding mode of transmission block 1 and redundancy version information, transmission block 1 enables; Whether the new data indication joint instructions transmission block 2 of the modulation coding mode of transmission block 2 and redundancy version information, transmission block 2 enables.
Realize the receiving system (terminal) of said method, comprise receiver module and transmission mode determination module, wherein:
Described receiver module is used to receive the Downlink Control Information that is used for uplink scheduling that the base station sends, and reads wherein indication information and flag bit;
Described transmission mode determination module, be used to judge the number of the transmission block that enables of described indication information indication, if a transmission block enables, then determine that according to described flag bit it still is many antenna ports transmission mode that Physical Uplink Shared Channel adopts single antenna port transmission pattern; If two transmission blocks enable, determine that then Physical Uplink Shared Channel adopts many antenna ports transmission mode.
Preferably, described transmission mode determination module is further used for judging that according to indication information when having two transmission blocks to enable, transmission block is to the mapping mode of code word when determining to send Physical Uplink Shared Channel according to the content of described flag bit.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, and in some cases, can carry out step shown or that describe with the order that is different from herein, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the transmission method of a Downlink Control Information is characterized in that, comprising:
The base station is when the Physical Uplink Shared Channel of certain user terminal of scheduling, send the Downlink Control Information that is used for uplink scheduling to described user terminal, in described Downlink Control Information, carry the indication information and the flag bit that are used to indicate the transmission block that enables at least, described base station determines that the Physical Uplink Shared Channel of described user terminal adopts single antenna port transmission pattern, or when adopting many antenna ports transmission mode and a transmission block to enable, disposing transmission block of described indication information indication enables, and dispose described flag bit and be used to indicate the port transmission pattern, when described base station determines that the Physical Uplink Shared Channel of described user terminal adopts many antenna ports transmission mode and two transmission blocks to enable, dispose two transmission blocks of described indication information indication and enable.
2. the method for claim 1 is characterized in that,
When two transmission blocks of the described indication information indication of described base station configuration enable, described flag bit is shone upon flag bit as transmission block to the code word intersection.
3. method as claimed in claim 2 is characterized in that,
After described user terminal receives described Downlink Control Information, judge the transmission block number that enables of described indication information indication, if a transmission block enables, then determine that according to described flag bit the transmission mode that Physical Uplink Shared Channel adopts is that single antenna port transmission pattern still is many antenna ports transmission mode; If two transmission blocks enable, determine that then the transmission mode that Physical Uplink Shared Channel adopts is many antenna ports transmission mode, transmission block is to the mapping mode of code word when determining to send Physical Uplink Shared Channel according to described flag bit.
4. as claim 1 or 2 or 3 described methods, it is characterized in that,
Described indication information adopts implicit mode to indicate the number of the transmission block that enables.
5. method as claimed in claim 4 is characterized in that,
The number of the transmission block that implicit in the following manner indication enables: whether the new data indication joint instructions transmission block 1 of the modulation coding mode of transmission block 1 and redundancy version information, transmission block 1 enables; Whether the new data indication joint instructions transmission block 2 of the modulation coding mode of transmission block 2 and redundancy version information, transmission block 2 enables.
6. as claim 1 or 2 or 3 described methods, it is characterized in that,
Described indication information adopts explicit way to indicate the number of the transmission block that enables.
7. the dispensing device of a Downlink Control Information is characterized in that, comprises configuration module and sending module, wherein:
Described configuration module, be used for adopting single antenna port transmission pattern at the Physical Uplink Shared Channel of determining user terminal, or when adopting many antenna ports transmission mode and a transmission block to enable, transmission block of indication information indication that configuration is used for the Downlink Control Information of uplink scheduling enables, and dispose a flag bit and be used to indicate the port transmission pattern, and when the Physical Uplink Shared Channel of determining described user terminal adopts many antenna ports transmission mode and two transmission blocks to enable, dispose two transmission blocks of described indication information indication and enable;
Described sending module is used for sending the Downlink Control Information that comprises described indication information and flag bit at least to described user terminal.
8. dispensing device as claimed in claim 7 is characterized in that,
Described configuration module also is used for when the Physical Uplink Shared Channel of determining described user terminal adopts many antenna ports transmission mode and two transmission blocks to enable, and described flag bit is intersected to code word as transmission block shine upon flag bit.
9. the receiving system of a Downlink Control Information is characterized in that, comprises receiver module and transmission mode determination module, wherein:
Described receiver module is used to receive the Downlink Control Information that is used for uplink scheduling that the base station sends, and reads wherein indication information and flag bit;
Described transmission mode determination module, be used to judge the number of the transmission block that enables of described indication information indication, if a transmission block enables, then determine that according to described flag bit it still is many antenna ports transmission mode that Physical Uplink Shared Channel adopts single antenna port transmission pattern; If two transmission blocks enable, determine that then Physical Uplink Shared Channel adopts many antenna ports transmission mode.
10. receiving system as claimed in claim 9 is characterized in that,
Described transmission mode determination module is further used for judging that according to indication information when having two transmission blocks to enable, transmission block is to the mapping mode of code word when determining to send Physical Uplink Shared Channel according to the content of described flag bit.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010119128A CN101801101A (en) | 2010-02-24 | 2010-02-24 | Method and device for transmitting downlink control information |
| PCT/CN2011/070134 WO2011103776A1 (en) | 2010-02-24 | 2011-01-10 | Method and device for transmitting downlink control information |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010119128A CN101801101A (en) | 2010-02-24 | 2010-02-24 | Method and device for transmitting downlink control information |
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| CN101801101A true CN101801101A (en) | 2010-08-11 |
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| CN102013948A (en) * | 2010-11-30 | 2011-04-13 | 华为技术有限公司 | Indication method and user equipment |
| CN102130715A (en) * | 2010-08-24 | 2011-07-20 | 华为技术有限公司 | Method and device for sending and receiving control signaling |
| WO2011103776A1 (en) * | 2010-02-24 | 2011-09-01 | 中兴通讯股份有限公司 | Method and device for transmitting downlink control information |
| WO2012041083A1 (en) * | 2010-09-30 | 2012-04-05 | 中兴通讯股份有限公司 | Method and device for transmitting control information |
| CN102625456A (en) * | 2011-02-01 | 2012-08-01 | 中兴通讯股份有限公司 | Methods for sending, receiving and transmitting downlink control information and related devices |
| WO2018028680A1 (en) * | 2016-08-12 | 2018-02-15 | 华为技术有限公司 | Method and device for transmitting control information |
| CN109792319A (en) * | 2018-12-20 | 2019-05-21 | 北京小米移动软件有限公司 | Ascending transmission method and device |
| WO2019095478A1 (en) * | 2017-11-17 | 2019-05-23 | 华为技术有限公司 | Downlink control information sending method, terminal device, and network device |
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| WO2011103776A1 (en) * | 2010-02-24 | 2011-09-01 | 中兴通讯股份有限公司 | Method and device for transmitting downlink control information |
| CN102130715A (en) * | 2010-08-24 | 2011-07-20 | 华为技术有限公司 | Method and device for sending and receiving control signaling |
| WO2012041083A1 (en) * | 2010-09-30 | 2012-04-05 | 中兴通讯股份有限公司 | Method and device for transmitting control information |
| CN102013948A (en) * | 2010-11-30 | 2011-04-13 | 华为技术有限公司 | Indication method and user equipment |
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| CN102625456A (en) * | 2011-02-01 | 2012-08-01 | 中兴通讯股份有限公司 | Methods for sending, receiving and transmitting downlink control information and related devices |
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| US11902965B2 (en) | 2018-12-20 | 2024-02-13 | Beijing Xiaomi Mobile Software Co., Ltd. | Uplink transmission method and apparatus |
| CN110383748A (en) * | 2019-05-09 | 2019-10-25 | 北京小米移动软件有限公司 | Downlink control information sending method, device and readable storage medium storing program for executing |
| CN110383748B (en) * | 2019-05-09 | 2022-05-13 | 北京小米移动软件有限公司 | Downlink control information sending method, device and readable storage medium |
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