CN101730139A - Descending control channel assignment and blind test method - Google Patents

Descending control channel assignment and blind test method Download PDF

Info

Publication number
CN101730139A
CN101730139A CN200810172703A CN200810172703A CN101730139A CN 101730139 A CN101730139 A CN 101730139A CN 200810172703 A CN200810172703 A CN 200810172703A CN 200810172703 A CN200810172703 A CN 200810172703A CN 101730139 A CN101730139 A CN 101730139A
Authority
CN
China
Prior art keywords
carrier frequency
control information
information
descending control
subscriber equipment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN200810172703A
Other languages
Chinese (zh)
Other versions
CN101730139B (en
Inventor
黄磊
刘仁茂
丁铭
陈晨
孙国林
张应余
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sharp Corp
Original Assignee
Sharp Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sharp Corp filed Critical Sharp Corp
Priority to CN2008101727037A priority Critical patent/CN101730139B/en
Publication of CN101730139A publication Critical patent/CN101730139A/en
Application granted granted Critical
Publication of CN101730139B publication Critical patent/CN101730139B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Mobile Radio Communication Systems (AREA)

Abstract

The invention provides a design and a test method for a descending control channel in an LTE-Advanced system, particularly a descending control channel assignment method for a base station and a descending control channel blind test method for user equipment. PDCCH index information is introduced to a general DCI format according to the invention, which is used for the blind test on basal carrier frequency, the user equipment realizes the rapid effective blind test course through the PDCCH index information, and the frequency of the blind test and the required power consumption are effectively reduced.

Description

Down control channel distributes and blind checking method
Technical field
The present invention relates to the mobile communication technology field, particularly relate to the design of LTE-Advanced system descending control channel, the design of descending control information format, and subscriber equipment carries out the method for blind Detecting to down control channel.According to the present invention, a kind of down control channel (PDDCH) distribution method and a kind of down control channel (PDDCH) blind checking method that is used for subscriber equipment (UE) that is used for base station (eNB) proposed.
Background technology
Design (the R1-082468 of four kinds of possible in the LTE-Advanced system different down control channels has discussed in Ericsson in 3GPP TSG RAN WGl 53bi s meeting, Carrier aggregation in LTE-Advanced, 3GPP TSG RANWGl 53bis, Warsaw, Poland, June 30-July 4,2008).First kind of scheme be, distributes PDCCH independently on each component carrier frequency (component carrier), is used to indicate the assignment information of the PDSCH on this carrier frequency.This scheme can be reused Downlink Control Information (DCI) form that defines among the LTE Rel-8, but the expense of this signaling can increase along with the increase of dispatching the bandwidth of operation of giving subscriber equipment.Second kind of scheme is to indicate a plurality of PDCCH of the assignment information of PDSCH on the component carrier frequency to be positioned on one of them component carrier frequency respectively.This scheme need be introduced new DCI form, wherein needs to comprise component carrier frequency number such field, is used for which section component carrier frequency to distinguish this PDCCH.The third scheme is that the assignment information of the PDSCH on the component carrier frequency of all scheduling is indicated by a PDCCH who is positioned on certain component carrier frequency.This scheme need be introduced a kind of new DCI form equally, and unification is unified numbering to the pairing Resource Block of the PDSCH on a plurality of component carrier frequency (RB).The 4th kind of scheme is that the PDCCH distribution mechanism of LTE is extended on the whole system bandwidth.
Further instruction (R1-083730 has been to above-mentioned relevant scheme in Nokia in 3GPP TSG RAN WG1 54bis meeting, L1 control signaling with carrieraggregation in LTE-Advanced, 3GPP TSG RAN 1WG1 54bis, Prague, Czech Rep., Sep 29-0ct 3,2008).The document is divided into two big classes to the PDCCH design in the LTE-Advanced system.One class is the corresponding PDCCH independently of the component carrier frequency of each distribution, another kind ofly forms an independent PDCCH for the component carrier frequency of all distribution being carried out combined coding.Especially, also point out in the document when adopting a PDCCH to indicate resource allocation on the whole working bandwidth, can carry out combined coding based on a CRC, thereby reduce expense.Consider that simultaneously payload is bigger, the maximum PDCCH size that defines among the LTE Rel-8 is 8 control channel unit CCE (Control Channel Element), this restriction may can't be satisfied the LTE-Advanced system, therefore need redefine new structure.In emerging company a kind of control channel structure (R1-083609, General control channel design for LTE-A, 3GPP TSG RAN WG1 54bis of layering have been proposed in same meeting, Prague, Czech Rep., Sep 29-Oct 3,2008).This organization definition a kind of new DCI form be used to indicate the carrier frequency at PDCCH place.Define a basic carrier frequency, LTE-Advanced user always monitors this basis carrier frequency with described new DCI form, and according to the DCI information that monitors, finds the carrier frequency at PDCCH place, reads the control information on corresponding each carrier frequency.This scheme can reduce LTE-Advanced user's blind Detecting number of times effectively by the structure of layering, thereby reaches the effect that reduces user emission power.Yet,, on specific implementation, exist certain problem according to the description in its motion.According to associated description (3GPP TS 36.213 v8.4.0s of present 3GPP to PDCCH assigning process among the LTE, 3GPP TSG RANE-UTRA Physical layer procedures (Release 8), 2008-09), PDCCH for the specific user, according to its user RNTI, have 16 candidate CCE set and distribute for its scheduling.In the dispatching cycle, can only distribute a candidate CCE set to be used to transmit certain specific user's PDCCH information.The scheme that emerging company proposes in considering, when having distributed respective resources on above-mentioned basic carrier frequency, for certain LTE-Advanced user, this user need the DCI format detection with redetermination go out corresponding PDCCH index information on this basis carrier frequency, know that according to this index information PDCCH is arranged on basic carrier frequency then, use the corresponding resource allocation information of corresponding D CI format detection again.As realizing said process, must satisfy one of following two assumed conditions: needs are two RNTI of each LTE-Advanced user equipment allocation, one is used for this subscriber equipment detects above-mentioned index information on basic carrier frequency, and another is used to detect the PDCCH on this basis carrier frequency; Perhaps need on basic carrier frequency two candidate CCE set of a LTE-Advanced user equipment allocation.Previous hypothesis is distributed to LTE-Advanced user with what limited RNTI was divided into two, is the lower distribution method of a kind of efficient, has reduced the number of users of effective access.A kind of hypothesis in back is divided into two the PDCCH resource on the basic carrier frequency, and this will reduce schedulable number of users in each dispatching cycle.In sum, there is bigger problem in the layering PDCCH scheme that emerging company proposes in system's practical application.Therefore be necessary it is further improved, propose practicable solution on this basis.
Summary of the invention
Technical problem to be solved by this invention is how to realize distribution and the testing process of PDCCH in the LTE-Advanced system.The objective of the invention is to solve effectively because the LTE-Advanced system bandwidth is made of the wasting of resources problem that multistage PDCCH distributes and multistage PDCCH blind Detecting may cause that is caused a plurality of carrier frequency.
The means that solve the problems of the technologies described above
In order to realize these and/or other advantage, and according to purpose of the present invention, as concrete and extensively describe ground herein, the present invention is embodied in a kind of design and detection method of LTE-Advanced system descending control channel.
According to the present invention, a kind of down control channel distribution method that is used for the base station has been proposed, comprising: by broadcast channel to subscriber equipment transmitting system carrier frequency information; Send working carrier frequency information and basic carrier frequency indication information by high-level signaling to subscriber equipment; Be current scheduling user devices allocation resource; Adopt improved descending control information format to encapsulate control information on the basic carrier frequency; Adopt general descending control information format to encapsulate control information on other non-basic carrier frequency.
Preferably, on basic carrier frequency, adopt the ascending resource assignment information of improved descending control information format encapsulation subscriber equipment, and on the working carrier frequency of described other non-basic carrier frequency of subscriber equipment, adopt general descending control information format to encapsulate the downlink resource assignment information of described subscriber equipment.
Preferably, described general descending control information format is the new descending control information format of introducing that is used to encapsulate the control information on the non-basic carrier frequency of descending control information format and/or LTE-Advanced system that defines in the LTE system.
Preferably, the described down control channel distribution method that is used for the base station also comprises: according to the schedule information whether the up-downgoing shared channel of current scheduling user equipment is arranged on the scheduling result judgement basis carrier frequency.
Preferably, the described down control channel distribution method that is used for the base station also comprises: if the schedule information of the up-downgoing shared channel of current scheduling user equipment is arranged on the basic carrier frequency, adopt improved descending control information format to encapsulate control information on the basic carrier frequency; If there is not the schedule information of the up-downgoing shared channel of current scheduling user equipment on the basic carrier frequency, the descending control information format that employing is introduced encapsulates the control information on the basic carrier frequency.
Preferably, described improved descending control information format comprises the whole fields and the down control channel index information bit of general descending control information format,
If the schedule information of the up-downgoing shared channel of current scheduling user equipment is arranged on the basic carrier frequency, encapsulate whole fields of the general descending control information format in the described improved descending control information format according to general descending control information format, if there is not the schedule information of the up-downgoing shared channel of current scheduling user equipment on the basic carrier frequency, adopt under the current scheduling user equipment work pattern the minimum descending control information format of bit number in the improved descending control information format to encapsulate control information on the basic carrier frequency, and whole fields of the general descending control information format in the described improved descending control information format are set arbitrarily, described down control channel index information bit is used to indicate down control channel (PDCCH) information of current scheduling user equipment to be positioned at which carrier frequency.
Preferably, described improved descending control information format comprises the whole fields and the down control channel index information bit of general descending control information format, if the schedule information of the up-downgoing shared channel of current scheduling user equipment is arranged on the basic carrier frequency, encapsulate whole fields of the general descending control information format in the described improved descending control information format according to general descending control information format, if there is not the schedule information of the up-downgoing shared channel of current scheduling user equipment on the basic carrier frequency, adopt under the current scheduling user equipment work pattern the minimum descending control information format of bit number in the improved descending control information format to encapsulate control information on the basic carrier frequency, and the resource allocation information field of the general descending control information format to the described improved descending control information format of major general puts 0, and described down control channel index information bit is used to indicate the PDCCH information of current scheduling user equipment to be positioned at which carrier frequency.
Preferably, described improved descending control information format comprises the whole fields and the down control channel index information bit of general descending control information format, if the schedule information of the up-downgoing shared channel of current scheduling user equipment is arranged on the basic carrier frequency, encapsulate whole fields of the general descending control information format in the described improved descending control information format according to general descending control information format, described down control channel index information bit is used to indicate the PDCCH information of current scheduling user equipment to be positioned at which carrier frequency, and the descending control information format of described introducing only comprises described down control channel index information bit.
Preferably, the described down control channel distribution method that is used for the base station also comprises: the assigning process according to the LTE definition is mapped to the control information on each carrier frequency on each carrier frequency control corresponding Channel Elements CCE.
Preferably, the described down control channel distribution method that is used for the base station also comprises: send Downlink Control Information on each carrier frequency to subscriber equipment.
Preferably, the described down control channel distribution method that is used for the base station is applicable to the LTE-Advanced system.
According to the present invention, a kind of down control channel blind checking method that is used for subscriber equipment has also been proposed, comprising:, obtain system's carrier frequency information by broadcast channel; By high-level signaling, obtain working carrier frequency information and basic carrier frequency indication information; Adopt the descending control information format of improved descending control information format and introducing that the control channel on the basic carrier frequency is carried out blind Detecting; Judge whether to detect control information; If detect control information, read the down control channel index information bit that is comprised in the descending control information format of improved descending control information format or introducing at this subscriber equipment; According to down control channel index information bit, whether the schedule information of the up-downgoing shared channel of this subscriber equipment is arranged on the judgement basis carrier frequency; If the schedule information of the up-downgoing shared channel of this subscriber equipment is arranged on the basic carrier frequency, then obtain resource allocation information, read the data message on the basic carrier frequency.
Preferably, the described down control channel blind checking method that is used for subscriber equipment also comprises: if the schedule information of the up-downgoing shared channel of this subscriber equipment not on the basic carrier frequency, then adopt general descending control information format on indicated other the non-basic carrier frequency of down control channel index information bit, to carry out blind Detecting, obtain resource allocation information, read the data message on the corresponding carrier frequency.
Preferably, the described down control channel blind checking method that is used for subscriber equipment also comprises: if do not detect control information at this subscriber equipment, then this customer equipment data not in this dispatching cycle finishes to work as pre-treatment, waits for next dispatching cycle.
Preferably, described improved descending control information format comprises the whole fields and the down control channel index information bit of general descending control information format, if the schedule information of the up-downgoing shared channel of this subscriber equipment is arranged on the basic carrier frequency, whole fields of the general descending control information format in the then described improved descending control information format encapsulate according to general descending control information format, if the schedule information of the up-downgoing shared channel of this subscriber equipment not on the basic carrier frequency, then the descending control information format of Cai Yonging is the descending control information format under minimum improved this subscriber equipment mode of operation of bit number, whole fields of the general descending control information format in the described improved descending control information format are to be provided with arbitrarily, described down control channel index information bit is used to indicate the PDCCH information of this subscriber equipment to be positioned at which carrier frequency, and the descending control information format of described introducing only comprises described down control channel index information bit.
Preferably, described improved descending control information format comprises the whole fields and the down control channel index information bit of general descending control information format, if the schedule information of the up-downgoing shared channel of this subscriber equipment is arranged on the basic carrier frequency, whole fields of the general descending control information format in the then described improved descending control information format encapsulate according to general descending control information format, if the schedule information of the up-downgoing shared channel of this subscriber equipment not on the basic carrier frequency, control information on the then basic carrier frequency is to adopt under this subscriber equipment mode of operation that the minimum descending control information format of bit number encapsulates in the improved descending control information format, and the resource allocation information field of the general descending control information format in the described at least improved descending control information format is put 0, described down control channel index information bit is used to indicate the PDCCH information of this subscriber equipment to be positioned at which carrier frequency, and the descending control information format of described introducing only comprises described down control channel index information bit.
Preferably, described general descending control information format is the new descending control information format of introducing that is used to encapsulate corresponding control information of descending control information format and/or LTE-Advanced system that defines in the LTE system.
Preferably, the described down control channel blind checking method that is used for subscriber equipment is applicable to the LTE-Advanced system.
According to first specific embodiments of the present invention, a kind of PDCCH distribution method that is used for the base station has been proposed, comprising:
ENB by broadcast channel to LTE-Advanced subscriber equipment transmitting system carrier frequency information;
ENB sends working carrier frequency information and basic carrier frequency indication information by high-level signaling to the LTE-Advanced subscriber equipment;
ENB is a current scheduling user devices allocation resource;
ENB is according to the schedule information whether this user's up-downgoing shared channel is arranged on the scheduling result judgement basis carrier frequency;
If the schedule information of this user's up-downgoing shared channel is arranged on the basic carrier frequency, adopt improved DCI form to encapsulate control information on the basic carrier frequency;
If the schedule information of this user's up-downgoing shared channel not on the basic carrier frequency adopts improved DCI form under the minimum current scheduling user equipment work pattern of bit number to encapsulate control information on the basic carrier frequency, resource allocation bit wherein puts complete 0;
Adopt general DCI form to encapsulate control information on other non-basic carrier frequency.
According to second specific embodiments of the present invention, a kind of PDCCH blind checking method that is used for subscriber equipment has been proposed, comprising:
Subscriber equipment obtains system's carrier frequency information by broadcast channel;
Subscriber equipment obtains working carrier frequency information and basic carrier frequency indication information by high-level signaling;
Subscriber equipment adopts improved DCI form that the control channel on the basic carrier frequency is carried out blind Detecting;
Subscriber equipment judges whether to detect control information;
If subscriber equipment does not detect control information, then this customer equipment data not in this dispatching cycle is not done other processing;
If detect control information, read the PDCCH index information at this subscriber equipment;
According to the PDCCH index information, whether the schedule information of this user's up-downgoing shared channel is arranged on the judgement basis carrier frequency;
If the schedule information of this user's up-downgoing shared channel is arranged on the basic carrier frequency, then obtain resource allocation information, read the data message on the basic carrier frequency;
If the schedule information of this user's up-downgoing shared channel not on the basic carrier frequency then adopts general DCI form to carry out blind Detecting on other non-basic carrier frequency of PDCCH index information indication, obtain resource allocation information, read the data message on the corresponding carrier frequency.
According to the 3rd specific embodiments of the present invention, the another kind of PDCCH distribution method that is used for the base station has been proposed, comprising:
ENB by broadcast channel to LTE-Advanced subscriber equipment transmitting system carrier frequency information;
ENB sends working carrier frequency information and basic carrier frequency indication information by high-level signaling to the LTE-Advanced subscriber equipment;
ENB is a current scheduling user devices allocation resource;
ENB is according to the schedule information whether this user's up-downgoing shared channel is arranged on the scheduling result judgement basis carrier frequency;
If the schedule information of this user's up-downgoing shared channel is arranged on the basic carrier frequency, adopt improved DCI form to encapsulate control information on the basic carrier frequency;
If the schedule information of this user's up-downgoing shared channel not on the basic carrier frequency adopts the DCI form X that introduces to encapsulate control information on the basic carrier frequency;
Adopt general DCI form to encapsulate control information on other non-basic carrier frequency.
According to the 4th specific embodiments of the present invention, the another kind of PDCCH blind checking method that is used for subscriber equipment has been proposed, comprising:
Subscriber equipment obtains system's carrier frequency information by broadcast channel;
Subscriber equipment obtains working carrier frequency information and basic carrier frequency indication information by high-level signaling;
Subscriber equipment adopts the DCI form X of improved DCI form and introducing that the control channel on the basic carrier frequency is carried out blind Detecting;
Subscriber equipment judges whether to detect control information;
If subscriber equipment does not detect control information, then this customer equipment data not in this dispatching cycle is not done other processing;
If detect control information at this subscriber equipment, the control information on the basic carrier frequency that judges whether to encapsulate into the DCI form X that introduces;
Control information on the basic carrier frequency of the DCI form X encapsulation of introducing then illustrates the schedule information that this user's up-downgoing shared channel is arranged on the basic carrier frequency, obtains resource allocation information, reads the data message on the basic carrier frequency;
Read the PDCCH index information in the control information that blind check measures;
Adopt general DCI form on other non-basic carrier frequency of PDCCH index information indication, to carry out blind Detecting, obtain resource allocation information, read the data message on the corresponding carrier frequency.
The scheme that is provided by foregoing invention as can be seen, the PDCCH index is incorporated in the general DCI form, to be used for the blind Detecting on the basic carrier frequency, by this PDCCH index, subscriber equipment has been realized blind detection process fast and effectively, has reduced the number of times of blind Detecting and required power consumption effectively.
Description of drawings
By below in conjunction with description of drawings the preferred embodiments of the present invention, will make above-mentioned and other purpose of the present invention, feature and advantage clearer, wherein:
Fig. 1 is that LTE-Advanced system bandwidth overloading is assembled schematic diagram frequently;
Fig. 2 is the only schematic diagram of carrier frequency transmission system synchronizing channel and broadcast channel of LTE-Advanced system;
Fig. 3 is the schematic diagram of all carrier frequency transmission system synchronizing channels of LTE-Advanced system and broadcast channel;
Fig. 4 is the signaling process figure of the corresponding carrier frequency information of LTE-Advanced system transmissions;
Fig. 5 is a subscriber equipment control channel structural representation when on the basic carrier frequency RB resource allocation being arranged;
Fig. 6 is a subscriber equipment control channel structural representation when not having the RB resource allocation on the basic carrier frequency;
Fig. 7 is a subscriber equipment control channel structural representation when not having the RB resource allocation on the another kind of basic carrier frequency;
Fig. 8 is that a kind of base station equipment is distributed the PDCCH flow chart;
Fig. 9 is a kind of subscriber equipment blind Detecting PDCCH flow chart;
Figure 10 is that a kind of base station equipment is distributed the PDCCH flow chart;
Figure 11 is a kind of subscriber equipment blind Detecting PDCCH flow chart;
Figure 12 is a subscriber equipment control channel structural representation when on a kind of basic carrier frequency the RB resource allocation being arranged;
Figure 13 is a subscriber equipment control channel structural representation when not having the RB resource allocation on the another kind of basic carrier frequency;
Figure 14 is that a kind of base station equipment is distributed the PDCCH flow chart;
Figure 15 is a kind of subscriber equipment blind Detecting PDCCH flow chart; And
Figure 16 is a subscriber equipment control channel structural representation in the LTE-Advanced system, when being mapped with ascending resource distribution (UL grant) on the basic carrier frequency.
Embodiment
The embodiment of first-selection of the present invention will be described below in conjunction with the accompanying drawings.In the description process below, having omitted is unnecessary details and function for the present invention, obscures to prevent that the understanding of the present invention from causing.
At length set forth performing step of the present invention for clear, provided specific embodiments of the invention below, be applicable to the LTE-Advanced cell mobile communication systems.Need to prove that the present invention is not limited to this application, but applicable to other related mobile communication system.
Defined the schedule information that 7 kinds of DCI forms are used for transmission user up-downgoing shared channel in the LTE system, they are respectively Format 0, Format 1, Format 1A, Format 1B, Format 1D, Format 2 and Format 2A.
In order to describe the present invention better, below earlier the format content of Format 0 and Format 1A is done concise and to the point description, the detailed content of other formal definition can be referring to LTE standardization document 3GPP TS 36.212v8.4.0.
The supposing the system upstream and downstream bandwidth is 20MHz, and promptly system bandwidth takies 110 RB.
###
DCI form 0 (Format 0) amounts to 28 bits, is used for encapsulating the schedule information of Uplink Shared Channel PUSCH, comprises following field:
Format information: 1 bit is used to distinguish form 0 and form 1A, bit value 0 presentation format 0, bit value 1 presentation format 1A;
Frequency hopping indication information: 1 bit;
Resource allocation information: 13 bits;
Modulation coding mode: 5 bits;
New data indication information: 1 bit;
Uplink power control information: 2 bits;
Demodulation reference signaling (DM RS) circular shift information: 3 bits;
CQI solicited message: 1 bit;
Replenish bit: 2 bits, if the information bit of form 0 less than the information bit of form 1A, then in the back zero padding to consistent with the information bit of form 1A.
***
###
DCI form 1A (Format 1A) amounts to 28 bits, is used for encapsulating the schedule information of single codeword DSCH Downlink Shared Channel PDSCH, comprises following field:
Format information: 1 bit is used to distinguish form 0 and form 1A, bit value 0 presentation format 0, bit value 1 presentation format 1A;
Virtual RB (VRB) type information: 1 bit;
Resource allocation information: 13 bits;
Modulation coding mode: 5 bits;
HARQ process information: 3 bits;
New data indication information: 1 bit;
Redundancy version information: 2 bits;
Uplink power control indication information: 2 bits.
***
Defined following 7 kinds of transmission modes in the LTE system:
1. single antenna transmissions, port 0
2. transmission diversity
3. open loop space division multiplexing
4. closed loop space division multiplexing
5. multiuser MIMO
6. the closed loop order is 1 precoding
7. single antenna transmissions, port 5
The LTE subscriber equipment carries out the PDCCH blind Detecting according to its transmission mode, and the corresponding relation between transmission mode and the DCI form is as shown in table 1 below.
Table 1
Transmission mode With reference to the DCI form
??1 ??1，1A
??2 ??1，1A
??3 ??2A
??4 ??2
??5 ??1D
??6 ??1B
??7 ??1，1A
The LTE-Advanced system bandwidth is made up of the sub-band of 5 20MHz, and these sub-bands lay respectively on the carrier frequency 1～5, and the center frequency point of each carrier frequency is respectively f 1～f 5, as shown in Figure 1.
Base station eNB is formed the center frequency point information of each carrier frequency of system bandwidth by broadcast channel broadcasts.Concrete implementation can be decided according to the configuration of system synchronization channel SCH and BCCH channel of broadcast control.
As shown in Figure 2, when SCH and BCCH are arranged on having only carrier frequency 3 in the system, can be by this BCCH transmission carrier frequency information, for example (f 1, f 2, f 4, f 5).The LTE-Advanced subscriber equipment is when synchronous, and the center frequency point that can know the carrier frequency at SCH place is f 3,, just can directly obtain the center frequency point information f of all carrier frequency by obtaining BCCH information 1～f 5Can also be by the center frequency point difference information of this BCCH transmission carrier frequency, for example (Δ f 1, Δ f 2, Δ f 4, Δ f 5), Δ f wherein 1=f 1-f 3, Δ f 2=f 2-f 3, Δ f 4=f 4-f 3, Δ f 5=f 5-f 3The LTE-Advanced subscriber equipment is when synchronous, and the center frequency point that can know the carrier frequency at SCH place is f 3, after the center frequency point difference information of obtaining other carrier frequency by BCCH information, can calculate the band information f of all carrier frequency 1～f 5
As shown in Figure 3, when all carrier frequency in the system all have separately SCH and during BCCH, the center frequency point information of other carrier frequency of BCCH broadcasting except that current carrier frequency that can be by separately is as transmitting carrier frequency information (f in the BCCH of carrier frequency 1 2, f 3, f 4, f 5).After being synchronized to carrier frequency 1, obtains by the LTE-Adavanced subscriber equipment center frequency point f 1, can obtain other frequencies f by BCCH 2～f 5Equally, can transmit the center frequency point difference information of other carrier frequency by the BCCH of place carrier frequency 1.The LTE-Advanced subscriber equipment is when synchronous, and the center frequency point that can know the carrier frequency at SCH place is f 1, after the center frequency point difference information of obtaining other carrier frequency by BCCH information, can calculate all carrier frequency band information f 1～f 5
ENB (base station) is scheduling to subscriber equipment and the assignment carrier frequency, and definite main carrier frequency, sends relevant information by high-level signaling to subscriber equipment.As shown in Figure 4, to distribute to the working carrier frequency of a certain subscriber equipment be f for eNB scheduling 1, f 3And f 5, determine f 3Be the basic carrier frequency of this subscriber equipment, and give subscriber equipment by high-level signaling transmission working carrier frequency indication information (10101) and basic carrier frequency information (010).Subscriber equipment is after receiving this information, in conjunction with carrier frequency information f 1～f 5Just can know that its working carrier frequency is f 1, f 3And f 5, be f at the basic carrier frequency that can obtain current distribution in conjunction with basic carrier frequency information 3
Embodiment one:
Introduce improved DCI form and on basic carrier frequency, carry out blind Detecting for the LTE-Advanced subscriber equipment.Improved method is exactly to add the carrier frequency that a field is used to indicate this user PDCCH information place in the DCI form of original definition.Originally Ding Yi DCI form can be the DCI form that defines among the LTE, and/or the new DCI form of introducing that is used for non-basic carrier blind detection of LTE-Advanced system.Serve as the DCI form of original definition with the DCI form that defines among the LTE in this example.As shown in Figure 1, system bandwidth comprises 5 carrier frequency, then every kind of DCI form need add the field of 5 bits, and corresponding improvement DCI form is called after Format 0 ', Format 1 ', Format 1A ', Format 1B ', Format 1C ', Format 1D ', Format2 ' and Format 2A ' respectively.
For improved DCI form can be described better, be example with Format 1A ' below, its each field is elaborated.
###
DCI form 1A ' (Format 1A ') amounts to 33 bits, is used for encapsulating the schedule information of single codeword PDSCH, comprises following field:
Format information: 1 bit is used to distinguish form 0 ' and form 1A ', bit value 0 presentation format 0 ', bit value 1 presentation format 1A ';
Virtual RB (VRB) type information: 1 bit;
Resource allocation information: 13 bits;
Modulation coding mode: 5 bits;
HARQ process information: 3 bits;
New data indication information: 1 bit;
Redundancy version information: 2 bits;
Uplink power control indication information: 2 bits;
PDCCH index information: 5 bits.
***
Format 1A ' form is compared with Format 1A, has increased the PDCCH index information of 5 bits.Extended formatting is done similar processing.
For the LTE-Advanced subscriber equipment carry out on the basic carrier frequency DCI form that blind Detecting adopted and transmission mode and between corresponding relation, can describe by following table 2:
Table 2
Transmission mode With reference to the DCI form
??1 ??1’，1A’
??2 ??1’，1A’
??3 ??2A’
??4 ??2’
??5 ??1D’
??6 ??1B’
??7 ??1’，1A’
Above table only is the usefulness of giving an example, and the present invention is not limited in above-mentioned relation.In real system, can do corresponding popularization according to related definition.For example, the transmission mode of LTE-Advanced system may be not limited only to above-mentioned 7 kinds of patterns.
Next, be that the method for LTE-Advanced user equipment allocation PDCCH is described below to eNB:
ENB scheduling LTE-Advanced subscriber equipment distributes the RB resource for it in its working carrier frequency;
If the schedule information of this user's up-downgoing shared channel is arranged on basic carrier frequency, then eNB (for example adopts improved DCI form, form 1A ') control information on the basic carrier frequency of encapsulation, encapsulate control information on other carrier frequency with the DCI form of LTE definition, according to the assigning process of LTE definition, the control information on each carrier frequency is mapped on each carrier frequency corresponding C CE then.
Fig. 5 has provided example, the RB resource distribution that eNB is assigned to is on carrier frequency 1 and carrier frequency 3, because carrier frequency 3 is basic carrier frequency of this subscriber equipment, then on the carrier frequency 3 with the control information on DCI form 1A ' the encapsulation carrier frequency 3, encapsulating control information on the carrier frequency 1 with DCI form 1A on the carrier frequency 1.
If this user's PDCCH information not on basic carrier frequency, then eNB (for example adopts under the current scheduling user equipment work pattern the minimum DCI form of bit number in the improved DCI form, form 1A ') control information on the basic carrier frequency of encapsulation, other bits outer to PDCCH index information bit in the form do not limit.Similarly, the DCI form that eNB defines with LTE encapsulates the control information on other carrier frequency, according to the assigning process of LTE definition, the control information on each carrier frequency is mapped on each carrier frequency corresponding C CE then.
Fig. 6 has provided example, the RB resource distribution that eNB is assigned to is on carrier frequency 1 and carrier frequency 5, because carrier frequency 3 is basic carrier frequency of this subscriber equipment, in the control information of using on the carrier frequency 3 on DCI form 1A ' the encapsulation carrier frequency 3, owing to do not have resource allocation on the carrier frequency 3, therefore, except PDCCH index information bit ((10001) expression carrier frequency 1 and carrier frequency 5), other bits are that x does not do definition.In the control information that encapsulates with DCI form 1A on carrier frequency 1 and the carrier frequency 5 on the carrier frequency separately.
The subscriber equipment blind detection process can be described below:
The LTE-Advanced subscriber equipment finds the call number of the PDCCH search volume initial CCE in place according to the Hashing algorithm that its C-RNTI adopts LTE to define.
The LTE-Advanced subscriber equipment adopts improved DCI form to carry out blind Detecting in the PDCCH search volume in its basic carrier frequency.
According to the content of PDCCH in the basic carrier frequency that detects, read its field PDCCH index information, in conjunction with its working carrier frequency information, judge the schedule information that this user's up-downgoing shared channel is arranged on which carrier frequency.
If the schedule information of this user's up-downgoing shared channel is arranged on the basic carrier frequency, then read other field contents of PDCCH in the basic carrier frequency, obtain corresponding control information.
According to the PDCCH index information that reads, there is the carrier frequency of schedule information of this user's up-downgoing shared channel to adopt the DCI form of LTE definition to search to other and carries out blind Detecting in space, obtain corresponding control information at its PDCCH.
Be described further below in conjunction with Fig. 5 and Fig. 6.
As shown in Figure 5, the LTE-Advanced subscriber equipment carries out blind Detecting with improved DCI form to basic carrier frequency 3,1A ' correctly solves PDCCH information with the DCI form, draw according to field PDCCH index information content (10100), the schedule information of this user's up-downgoing shared channel is arranged on carrier frequency 1 and the carrier frequency 3.Owing to the schedule information of this user's up-downgoing shared channel is arranged in the basic carrier frequency 3, can obtain this subscriber equipment corresponding control information on the basic carrier frequency according to the PDCCH information that solves before.DCI form with the LTE definition carries out blind Detecting to carrier frequency 1, and 1A correctly solves PDCCH information with the DCI form, promptly can obtain the control information on the carrier frequency 1.
As shown in Figure 6, the LTE-Advanced subscriber equipment carries out blind Detecting with improved DCI form to basic carrier frequency 3,1A ' correctly solves PDCCH information with the DCI form, draw according to field PDCCH index information content (10001), the schedule information that this user's up-downgoing shared channel is arranged on carrier frequency 1 and the carrier frequency 5, and the schedule information of this user's up-downgoing shared channel not in the basic carrier frequency 3.DCI form with the LTE definition carries out blind Detecting to carrier frequency 1 and carrier frequency 5, and 1A correctly solves PDCCH information with the DCI form, promptly can obtain the control information on carrier frequency 1 and the carrier frequency 5 respectively.
Particularly, Fig. 8 is a LTE-Advanced system transmitter workflow diagram, and in conjunction with Fig. 8, the workflow of base station can be described below:
Step S801:eNB by broadcast channel to LTE-Advanced subscriber equipment transmitting system carrier frequency information;
Step S802:eNB sends working carrier frequency information and basic carrier frequency indication information by high-level signaling to the LTE-Advanced subscriber equipment;
Step S803:eNB is a current scheduling user devices allocation resource;
Step S804: adopt improved DCI form to encapsulate control information on the basic carrier frequency;
Step S805: the DCI form that adopts LTE to define encapsulates the control information on other non-basic carrier frequency.
Particularly, Fig. 9 is a LTE-Advanced system receiver workflow diagram, and in conjunction with Fig. 9, the workflow of subscriber equipment can be described below:
Step S901: subscriber equipment obtains system's carrier frequency information by broadcast channel;
Step S902: subscriber equipment obtains working carrier frequency information and basic carrier frequency indication information by high-level signaling;
Step S903: subscriber equipment adopts improved DCI form that the control channel on the basic carrier frequency is carried out blind Detecting;
Step S904: subscriber equipment judges whether to detect control information;
Step S905: if subscriber equipment does not detect control information, then this customer equipment data not in this dispatching cycle is not done other processing;
Step S906:, read the PDCCH index information if detect this subscriber equipment control information;
Step S907:, whether the schedule information of this user's up-downgoing shared channel is arranged on the judgement basis carrier frequency according to the PDCCH index information;
Step S908: if the schedule information of this user's up-downgoing shared channel is arranged on the basic carrier frequency, then obtain resource allocation information, read the data message on the basic carrier frequency;
Step S909: if the schedule information of this user's up-downgoing shared channel not on the basic carrier frequency, then adopt the DCI form of LTE definition on other non-basic carrier frequency of PDCCH index information indication, to carry out blind Detecting, obtain resource allocation information, read the data message on the corresponding carrier frequency.
By above step, distributed the carrier frequency of this user's PDCCH information for basic carrier frequency and each, the maximum blind Detecting number that subscriber equipment need carry out keeps consistent with the maximum blind Detecting number among the LTE, does not increase the complexity of extra blind Detecting.Saved the transmitting power of subscriber equipment effectively.
Embodiment two:
Introduce improved DCI form and on basic carrier frequency, carry out blind Detecting for the LTE-Advanced subscriber equipment.Improved method is exactly to add the carrier frequency that a field is used to indicate this user PDCCH information place in the DCI form of original definition.The DCI form of described original definition can be the DCI form that defines among the LTE, and/or the new DCI form of introducing that is used for non-basic carrier blind detection of LTE-Advanced system.Serve as the DCI form of original definition with the DCI form that defines among the LTE in this example.As shown in Figure 1, system bandwidth comprises 5 carrier frequency, then every kind of DCI form need add the field of 5 bits, and corresponding improvement DCI form is called after Format0 respectively ", Format 1 ", Format 1A ", Format 1B ", Format 1C ", Format 1D ", Format 2 " and Format 2A ".
For improved DCI form can better be described, below with Format 1A " be example, its each field is elaborated.
###
DCI form 1A " (Format 1A "), amount to 33 bits, be used for encapsulating the schedule information of single codeword PDSCH, comprise following field:
Format information: 1 bit is used to distinguish form 0 " and form 1A ", bit value 0 presentation format 0 ", bit value 1 presentation format 1A ";
Virtual RB (VRB) type information: 1 bit;
Resource allocation information: 13 bits;
Modulation coding mode: 5 bits;
HARQ process information: 3 bits;
New data indication information: 1 bit;
Redundancy version information: 2 bits;
Uplink power control indication information: 2 bits;
PDCCH index information: 4 bits.
***
Format 1A " form compares with Format 1A, increased the PDCCH index information of 4 bits.Extended formatting is done similar processing.
For the LTE-Advanced subscriber equipment carry out on the basic carrier frequency DCI form that blind Detecting adopted and transmission mode and between corresponding relation, can describe by following table 3:
Table 3
Transmission mode With reference to the DCI form
??1 ??1”，1A”
??2 ??1”，1A”
??3 ??2A”
??4 ??2”
??5 ??1D”
??6 ??1B”
??7 ??1”，1A”
Above table only is the usefulness of giving an example, and the present invention is not limited in above-mentioned relation.In real system, can do corresponding popularization according to related definition.For example, the transmission mode of LTE-Advanced system may be not limited only to above-mentioned 7 kinds of patterns.
Next, be that the method for LTE-Advanced user equipment allocation PDCCH is described below to eNB:
ENB scheduling LTE-Advanced subscriber equipment distributes the RB resource for it in its working carrier frequency;
If the schedule information of this user's up-downgoing shared channel is arranged on basic carrier frequency, then eNB adopts improved DCI form to encapsulate control information on the basic carrier frequency, encapsulate control information on other carrier frequency with the DCI form of LTE definition, according to the assigning process of LTE definition, the control information on each carrier frequency is mapped on each carrier frequency corresponding C CE then.
Figure 12 has provided example, the RB resource distribution that eNB is assigned to is on carrier frequency 1 and carrier frequency 3, because carrier frequency 3 is basic carrier frequency of this subscriber equipment, then on the carrier frequency 3 with DCI form 1A " control information on the encapsulation carrier frequency 3; (on 1000 carrier frequency 1, carrier frequency 2, carrier frequency 4 and the carrier frequency 5 that are used to refer to except that basic carrier frequency 3 whether resource allocation being arranged) encapsulating control information on the carrier frequency 1 with DCI form 1A on the carrier frequency 1.
If the schedule information of this user's up-downgoing shared channel not on basic carrier frequency, then eNB adopts under the current scheduling user equipment work pattern the minimum DCI form of bit number in the improved DCI form to encapsulate control information on the basic carrier frequency, resource allocation information bit in the form is put complete 0 be used for representing that basic carrier frequency does not have resource allocation.Same, the DCI form that eNB defines with LTE encapsulates the control information on other carrier frequency, according to the assigning process of LTE definition, the control information on each carrier frequency is mapped on each carrier frequency corresponding C CE then.
Figure 13 has provided example, the RB resource distribution that eNB is assigned to is on carrier frequency 1 and carrier frequency 5, because carrier frequency 3 is basic carrier frequency of this subscriber equipment, on the carrier frequency 3 with DCI form 1A " control information on the encapsulation carrier frequency 3; owing to do not have resource allocation on the carrier frequency 3, therefore, form 1A " in the resource allocation information bit be 0 entirely, PDCCH index information bit is " 1001 ", expression carrier frequency 1 and carrier frequency 5.In the control information that encapsulates with DCI form 1A on carrier frequency 1 and the carrier frequency 5 on the carrier frequency separately.
The subscriber equipment blind detection process can be described below:
The LTE-Advanced subscriber equipment finds the call number of the PDCCH search volume initial CCE in place according to the Hashing algorithm that its C-RNTI adopts LTE to define.
The LTE-Advanced subscriber equipment adopts improved DCI form to carry out blind Detecting in the PDCCH search volume in its basic carrier frequency.
Content according to PDCCH in the basic carrier frequency that detects, read the resource allocation information bit,, the schedule information that this user's up-downgoing shared channel is arranged on the basic carrier frequency is described then if be non-complete 0 bit, read the respective field content of PDCCH in the basic carrier frequency, obtain corresponding control information.
Read its field PDCCH index information,, judge the schedule information that this user's up-downgoing shared channel is arranged on which non-basic carrier frequency in conjunction with its working carrier frequency information.
According to the PDCCH index information that reads, there is the carrier frequency of schedule information of this user's up-downgoing shared channel to adopt the DCI form of LTE definition to search to other and carries out blind Detecting in space, obtain corresponding control information at its PDCCH.
Be described further below in conjunction with Figure 12 and Figure 13.
As shown in figure 12, the LTE-Advanced subscriber equipment carries out blind Detecting with improved DCI form to basic carrier frequency 3, with DCI form 1A " correctly solve PDCCH information; and according to the resource allocation information bit is the schedule information that this user's up-downgoing shared channel is arranged on the non-complete 0 basic as can be known carrier frequency; draw according to field PDCCH index information content (1000) then, the schedule information of this user's up-downgoing shared channel is arranged on the carrier frequency 1.Owing to the schedule information of this user's up-downgoing shared channel is arranged in the basic carrier frequency 3, can obtain this subscriber equipment corresponding control information on the basic carrier frequency according to the PDCCH information that solves before.DCI form with the LTE definition carries out blind Detecting to carrier frequency 1, and 1A correctly solves PDCCH information with the DCI form, promptly can obtain the control information on the carrier frequency 1.
As shown in figure 13, the LTE-Advanced subscriber equipment carries out blind Detecting with improved DCI form to basic carrier frequency 3, with DCI form 1A " correctly solve PDCCH information; and according to the resource allocation information bit is the schedule information of this user's up-downgoing shared channel not on the complete 0 basic as can be known carrier frequency; draw according to field PDCCH index information content (1001), the schedule information of this user's up-downgoing shared channel is arranged on carrier frequency 1 and the carrier frequency 5.DCI form with the LTE definition carries out blind Detecting to carrier frequency 1 and carrier frequency 5, and 1A correctly solves PDCCH information with the DCI form, promptly can obtain the control information on carrier frequency 1 and the carrier frequency 5 respectively.
Particularly, Figure 14 is a LTE-Advanced system transmitter workflow diagram, and in conjunction with Figure 14, the workflow of base station can be described below:
Step S1401:eNB by broadcast channel to LTE-Advanced subscriber equipment transmitting system carrier frequency information;
Step S1402:eNB sends working carrier frequency information and basic carrier frequency indication information by high-level signaling to the LTE-Advanced subscriber equipment;
Step S1403:eNB is a current scheduling user devices allocation resource;
Step S1404:eNB is according to the schedule information whether this user's up-downgoing shared channel is arranged on the scheduling result judgement basis carrier frequency;
Step S1405:, adopt improved DCI form to encapsulate control information on the basic carrier frequency if the schedule information of this user's up-downgoing shared channel is arranged on the basic carrier frequency;
Step S1406: if the schedule information of this user's up-downgoing shared channel not on the basic carrier frequency adopts improved DCI form to encapsulate control information on the basic carrier frequency, resource allocation bit wherein puts complete 0;
Step S1407: the DCI form that adopts LTE to define encapsulates the control information on other non-basic carrier frequency.
Particularly, Figure 15 is a LTE-Advanced system receiver workflow diagram, and in conjunction with Figure 15, the workflow of subscriber equipment can be described below:
Step S1501: subscriber equipment obtains system's carrier frequency information by broadcast channel;
Step S1502: subscriber equipment obtains working carrier frequency information and basic carrier frequency indication information by high-level signaling;
Step S1503: subscriber equipment adopts improved DCI form that the control channel on the basic carrier frequency is carried out blind Detecting;
Step S1504: subscriber equipment judges whether to detect control information;
Step S1505: if subscriber equipment does not detect control information, then this customer equipment data not in this dispatching cycle is not done other processing;
Step S1506: whether the resource allocation information bit is complete 0 on the judgement basis carrier frequency;
Step S1507: if the resource allocation information bit is complete 0 on the basic carrier frequency, then obtain resource allocation information, read the data message on the basic carrier frequency;
Step S1508: read the PDCCH index information in the control information that blind check measures;
Step S1509: adopt the DCI form of LTE definition on other non-basic carrier frequency of PDCCH index information indication, to carry out blind Detecting, obtain resource allocation information, read the data message on the corresponding carrier frequency.
By above step, distributed this user's PDCCH information for basic carrier frequency and each, the maximum blind Detecting number that subscriber equipment need carry out keeps consistent with the maximum blind Detecting number among the LTE, does not increase the complexity of extra blind Detecting.Saved the transmitting power of subscriber equipment effectively.
Embodiment three:
On the basis of above-mentioned improved DCI form, introduce a kind of brand-new DCI form, be used for the LTE-Advanced subscriber equipment and on basic carrier frequency, carry out blind Detecting, called after Format X in this example.Only comprise a PDCCH index information in this form, 4 bits.
For the LTE-Advanced subscriber equipment carry out on the basic carrier frequency DCI form that blind Detecting adopted and transmission mode and between corresponding relation, can describe by following table 4 or table 5:
Table 4
Transmission mode With reference to the DCI form
??1 ??1’，1A’，X
??2 ??1’，1A’，X
??3 ??2A’，X
??4 ??2’，X
??5 ??1D’，X
??6 ??1B’，X
??7 ??1’，1A’，X
Table 5
Transmission mode With reference to the DCI form
??1 ??1”，1A”，X
??2 ??1”，1A”，X
??3 ??2A”，X
??4 ??2”，X
??5 ??1D”，X
??6 ??1B”，X
??7 ??1”，1A”，X
Above table only is the usefulness of giving an example, and the present invention is not limited in above-mentioned relation.In real system, can do corresponding popularization according to related definition.For example, the transmission mode of LTE-Advanced system may be not limited only to above-mentioned 7 kinds of patterns.
ENB is that LTE-Advanced user equipment allocation PDCCH process prescription is as follows:
ENB scheduling LTE-Advanced subscriber equipment distributes the RB resource for it in its working carrier frequency;
If the schedule information of this user's up-downgoing shared channel is arranged on basic carrier frequency, then eNB adopts improved DCI form to encapsulate control information on the basic carrier frequency, encapsulate control information on other carrier frequency with the DCI form of LTE definition, according to the assigning process of LTE definition, the control information on each carrier frequency is mapped on each carrier frequency corresponding C CE then.
Fig. 5 has provided example, the RB resource distribution that eNB is assigned to is on carrier frequency 1 and carrier frequency 3, because carrier frequency 3 is basic carrier frequency of this subscriber equipment, then on the carrier frequency 3 with the control information on DCI form 1A ' the encapsulation carrier frequency 3, encapsulating control information on the carrier frequency 1 with DCI form 1A on the carrier frequency 1.Perhaps Figure 12 has provided example, the RB resource distribution that eNB is assigned to is on carrier frequency 1 and carrier frequency 3, because carrier frequency 3 is basic carrier frequency of this subscriber equipment, then on the carrier frequency 3 with DCI form 1A " control information on the encapsulation carrier frequency 3; (on 1000 carrier frequency 1, carrier frequency 2, carrier frequency 4 and the carrier frequency 5 that are used to refer to except that basic carrier frequency 3 whether resource allocation being arranged) encapsulating control information on the carrier frequency 1 with DCI form 1A on the carrier frequency 1.
If the schedule information of this user's up-downgoing shared channel not on basic carrier frequency, then eNB adopts DCI form X to encapsulate control information on the basic carrier frequency.Similarly, the DCI form that eNB defines with LTE encapsulates the control information on other carrier frequency, according to the assigning process of LTE definition, the control information on each carrier frequency is mapped on each carrier frequency corresponding C CE then.
Fig. 7 has provided example, the RB resource distribution that eNB is assigned to is on carrier frequency 1 and carrier frequency 5, because carrier frequency 3 is basic carrier frequency of this subscriber equipment, in the control information of using on the carrier frequency 3 on the DCI form X encapsulation carrier frequency 3, owing to do not have resource allocation on the carrier frequency 3, therefore, control information only comprises PDCCH index information bit " 1001 ", expression carrier frequency 1 and carrier frequency 5.In the control information that encapsulates with DCI form 1A on carrier frequency 1 and the carrier frequency 5 on the carrier frequency separately.
The subscriber equipment blind detection process can be described below:
The LTE-Advanced subscriber equipment finds the call number of the PDCCH search volume initial CCE in place according to the Hashing algorithm that its C-RNTI adopts LTE to define.
The LTE-Advanced subscriber equipment adopts improved DCI form and the new DCI form X that introduces to carry out blind Detecting in the PDCCH search volume in its basic carrier frequency.
If PDCCH is the new DCI form X that introduces in the basic carrier frequency that detects, read the PDCCH index information, having the carrier frequency of schedule information of this user's up-downgoing shared channel to adopt the DCI form of LTE definition to search at its PDCCH to other carries out blind Detecting, obtains corresponding control information in space.
If PDCCH is a kind of in the improved DCI form in the basic carrier frequency that detects, read its field PDCCH index information, in conjunction with its working carrier frequency information, judge the schedule information that this user's up-downgoing shared channel is arranged on which carrier frequency.Read other field contents of PDCCH in the basic carrier frequency, obtain the corresponding control information of this basis carrier frequency.
Be described further below in conjunction with Fig. 5, Figure 12 and Fig. 7.
As shown in Figure 5, the LTE-Advanced subscriber equipment carries out blind Detecting with improved DCI form to basic carrier frequency 3,1A ' correctly solves PDCCH information with the DCI form, draw according to field PDCCH index information content (10100), the schedule information of this user's up-downgoing shared channel is arranged on carrier frequency 1 and the carrier frequency 3.Owing to the schedule information of this user's up-downgoing shared channel is arranged in the basic carrier frequency 3, can obtain this subscriber equipment corresponding control information on the basic carrier frequency according to the PDCCH information that solves before.DCI form with the LTE definition carries out blind Detecting to carrier frequency 1, and 1A correctly solves PDCCH information with the DCI form, promptly can obtain the control information on the carrier frequency 1.Perhaps as shown in figure 12, the LTE-Advanced subscriber equipment carries out blind Detecting with improved DCI form to basic carrier frequency 3,1A ' correctly solves PDCCH information with the DCI form, according to the resource allocation information bit is the schedule information that this user's up-downgoing shared channel is arranged on the non-complete 0 basic as can be known carrier frequency 3, draw according to field PDCCH index information content (1000), the schedule information of this user's up-downgoing shared channel is arranged on the carrier frequency 1.Owing to the schedule information of this user's up-downgoing shared channel is arranged in the basic carrier frequency 3, can obtain this subscriber equipment corresponding control information on the basic carrier frequency according to the PDCCH information that solves before.DCI form with the LTE definition carries out blind Detecting to carrier frequency 1, and 1A correctly solves PDCCH information with the DCI form, promptly can obtain the control information on the carrier frequency 1.
As shown in Figure 7, the LTE-Advanced subscriber equipment carries out blind Detecting with improved DCI form to basic carrier frequency 3, X correctly solves PDCCH information with the DCI form, represent in the basic carrier frequency 3 the not schedule information of this user's up-downgoing shared channel, draw according to field PDCCH index information content (1001), the schedule information of this user's up-downgoing shared channel is arranged on carrier frequency 1 and the carrier frequency 5.Then, the DCI form that defines with LTE carries out blind Detecting to carrier frequency 1 and carrier frequency 5, and 1A correctly solves PDCCH information with the DCI form, promptly can obtain the control information on carrier frequency 1 and the carrier frequency 5 respectively.
Particularly, Figure 10 is a LTE-Advanced system transmitter workflow diagram, and in conjunction with Figure 10, the workflow of base station can be described below:
Step S1001:eNB by broadcast channel to LTE-Advanced subscriber equipment transmitting system carrier frequency information;
Step S1002:eNB sends working carrier frequency information and basic carrier frequency indication information by high-level signaling to the LTE-Advanced subscriber equipment;
Step S1003:eNB is a current scheduling user devices allocation resource;
Step S1004:eNB is according to the schedule information whether this user's up-downgoing shared channel is arranged on the scheduling result judgement basis carrier frequency;
Step S1005:, adopt improved DCI form to encapsulate control information on the basic carrier frequency if the schedule information of this user's up-downgoing shared channel is arranged on the basic carrier frequency;
Step S1006: if the schedule information of this user's up-downgoing shared channel not on the basic carrier frequency adopts the DCI form X that introduces to encapsulate control information on the basic carrier frequency;
Step S1007: the DCI form that adopts LTE to define encapsulates the control information on other non-basic carrier frequency.
Particularly, Figure 11 is a LTE-Advanced system receiver workflow diagram, and in conjunction with Figure 11, the workflow of subscriber equipment can be described below:
Step S1101: subscriber equipment obtains system's carrier frequency information by broadcast channel;
Step S1102: subscriber equipment obtains working carrier frequency information and basic carrier frequency indication information by high-level signaling;
Step S1103: subscriber equipment adopts the DCI form X of improved DCI form and introducing that the control channel on the basic carrier frequency is carried out blind Detecting;
Step S1204: subscriber equipment judges whether to detect control information;
Step S1205: if subscriber equipment does not detect control information, then this customer equipment data not in this dispatching cycle is not done other processing;
Step S1206: if detect this subscriber equipment control information, the control information on the basic carrier frequency that judges whether to encapsulate into the DCI form X that introduces;
Step S1207: the control information on the basic carrier frequency of the DCI form X encapsulation of introducing, the schedule information that this user's up-downgoing shared channel is arranged on the basic carrier frequency then is described, obtain resource allocation information, read the data message on the basic carrier frequency;
Step S1208: read the PDCCH index information in the control information that blind check measures;
Step S1209: adopt the DCI form of LTE definition on other non-basic carrier frequency of PDCCH index information indication, to carry out blind Detecting, obtain resource allocation information, read the data message on the corresponding carrier frequency.
By above step, distributed the carrier frequency of this user's PDCCH information for basic carrier frequency and each, the maximum blind Detecting number that subscriber equipment need carry out has increased once than the maximum blind Detecting number among the LTE, but compare with the embodiment of front, reduced the redundant bit in the DCI form, the level of resources utilization that has improved PDCCH.
Design and detection method by down control channel in the LTE-Advanced set forth above system, the LTE-Advanced subscriber equipment only needs the PDCCH channel on the basic carrier frequency of monitoring in its scheduling subframe, when schedule information, according to the PDCCH on the corresponding carrier frequency of PDCCH index information blind Detecting.This method simplicity of design is effective, the complexity of system design is low, has reduced the power overhead that the user detects control channel, has satisfied the demand of real system and LTE-Advanced subscriber equipment.
Embodiment four:
The ascending resource of a plurality of uplink carrier frequencies of LTE-Advanced subscriber equipment distributes (UL grant) information to adopt improved DCI form to be mapped on the basic carrier frequency, adopts general DCI form to encapsulate the downlink resource assignment information of described LTE-Advanced subscriber equipment simultaneously on the working carrier frequency of other non-basic carrier frequency.
Suppose DCI form 0 *A kind of form that encapsulates the ascending resource assignment information for the LTE-Advanced definition.By adding a PDCCH index field to DCI form 0 *In, form improved DCI form 0 *'.
ENB is that the method for LTE-Advanced user equipment allocation PDCCH is described below:
ENB scheduling LTE-Advanced subscriber equipment distributes the RB resource for it in its working carrier frequency;
ENB adopts improved DCI form 0 *' ascending resource that encapsulates this one or more up working carrier frequency of subscriber equipment distributes (UL grant) information;
The DCI form that eNB defines with LTE encapsulates the downlink resource assignment information on other carrier frequency;
ENB is mapped to the control information on each carrier frequency on each carrier frequency corresponding C CE according to the assigning process of LTE definition.
Figure 16 has provided example, and eNB distributes this user PDCCH information on carrier frequency 1 and carrier frequency 3, because carrier frequency 3 is basic carrier frequency of this subscriber equipment, then uses DCI form 0 on carrier frequency 3 *' encapsulate this user's ascending resource assignment information, encapsulating downlink resource assignment information on the carrier frequency 1 with DCI form 1A on the carrier frequency 1.
So far invention has been described in conjunction with the preferred embodiments.Should be appreciated that those skilled in the art can carry out various other change, replacement and interpolations under the situation that does not break away from the spirit and scope of the present invention.Therefore, scope of the present invention is not limited to above-mentioned specific embodiment, and should be limited by claims.

Claims (18)

1. down control channel distribution method that is used for the base station comprises:
By broadcast channel to subscriber equipment transmitting system carrier frequency information;
Send working carrier frequency information and basic carrier frequency indication information by high-level signaling to subscriber equipment;
Be current scheduling user devices allocation resource;
Adopt improved descending control information format to encapsulate control information on the basic carrier frequency;
Adopt general descending control information format to encapsulate control information on other non-basic carrier frequency.
2. the down control channel distribution method that is used for the base station according to claim 1 is characterized in that:
On basic carrier frequency, adopt the ascending resource assignment information of improved descending control information format encapsulation subscriber equipment, and
On the working carrier frequency of described other non-basic carrier frequency of subscriber equipment, adopt general descending control information format to encapsulate the downlink resource assignment information of described subscriber equipment.
3. the down control channel distribution method that is used for the base station according to claim 1 and 2 is characterized in that:
Described general descending control information format is the new descending control information format of introducing that is used to encapsulate corresponding control information of descending control information format and/or LTE-Advanced system that defines in the LTE system.
4. according to the described down control channel distribution method that is used for the base station of one of claim 1～3, also comprise:
According to the schedule information whether the up-downgoing shared channel of current scheduling user equipment is arranged on the scheduling result judgement basis carrier frequency.
5. the down control channel distribution method that is used for the base station according to claim 4 also comprises:
If the schedule information of the up-downgoing shared channel of current scheduling user equipment is arranged on the basic carrier frequency, adopt improved descending control information format to encapsulate control information on the basic carrier frequency;
If there is not the schedule information of the up-downgoing shared channel of current scheduling user equipment on the basic carrier frequency, the descending control information format that employing is introduced encapsulates the control information on the basic carrier frequency.
6. according to the described down control channel distribution method that is used for the base station of one of claim 1～4, it is characterized in that:
Described improved descending control information format comprises the whole fields and the down control channel index information bit of described general descending control information format,
If the schedule information of the up-downgoing shared channel of current scheduling user equipment is arranged on the basic carrier frequency, encapsulate whole fields of the general descending control information format in the described improved descending control information format according to general descending control information format,
If there is not the schedule information of the up-downgoing shared channel of current scheduling user equipment on the basic carrier frequency, adopt under the current scheduling user equipment work pattern the minimum descending control information format of bit number in the improved descending control information format to encapsulate control information on the basic carrier frequency, and whole fields of the general descending control information format in the described improved descending control information format are set arbitrarily
Described down control channel index information bit is used to indicate the down control channel information of current scheduling user equipment to be positioned at which carrier frequency.
7. according to the described down control channel distribution method that is used for the base station of one of claim 1～4, it is characterized in that:
Described improved descending control information format comprises the whole fields and the down control channel index information bit of general descending control information format,
If the schedule information of the up-downgoing shared channel of current scheduling user equipment is arranged on the basic carrier frequency, encapsulate whole fields of the general descending control information format in the described improved descending control information format according to general descending control information format,
If there is not the schedule information of the up-downgoing shared channel of current scheduling user equipment on the basic carrier frequency, adopt under the current scheduling user equipment work pattern the minimum descending control information format of bit number in the improved descending control information format to encapsulate control information on the basic carrier frequency, and the resource allocation information field of the general descending control information format to the described improved descending control information format of major general puts 0
Described down control channel index information bit is used to indicate the down control channel information of current scheduling user equipment to be positioned at which carrier frequency.
8. the down control channel distribution method that is used for the base station according to claim 5 is characterized in that:
Described improved descending control information format comprises the whole fields and the down control channel index information bit of general descending control information format,
If the schedule information of the up-downgoing shared channel of current scheduling user equipment is arranged on the basic carrier frequency, encapsulate whole fields of the general descending control information format in the described improved descending control information format according to general descending control information format,
Described down control channel index information bit is used to indicate the down control channel information of current scheduling user equipment to be positioned at which carrier frequency,
The descending control information format of described introducing only comprises described down control channel index information bit.
9. according to the described down control channel distribution method that is used for the base station of one of claim 1～8, also comprise:
Assigning process according to the LTE definition is mapped to the control information on each carrier frequency on each carrier frequency control corresponding Channel Elements.
10. according to the described down control channel distribution method that is used for the base station of one of claim 1～9, also comprise:
Send Downlink Control Information on each carrier frequency to subscriber equipment.
11., it is characterized in that according to the described down control channel distribution method that is used for the base station of one of claim 1～10:
The described down control channel distribution method that is used for the base station is applicable to the LTE-Advanced system.
12. a down control channel blind checking method that is used for subscriber equipment comprises:
By broadcast channel, obtain system's carrier frequency information;
By high-level signaling, obtain working carrier frequency information and basic carrier frequency indication information;
Adopt the descending control information format of improved descending control information format and introducing that the control channel on the basic carrier frequency is carried out blind Detecting;
Judge whether to detect control information;
If detect control information, read the down control channel index information bit that is comprised in the descending control information format of improved descending control information format or introducing at this subscriber equipment;
According to down control channel index information bit, whether the schedule information of the up-downgoing shared channel of this subscriber equipment is arranged on the judgement basis carrier frequency;
If the schedule information of the up-downgoing shared channel of this subscriber equipment is arranged on the basic carrier frequency, then obtain resource allocation information, read the data message on the basic carrier frequency.
13. the down control channel blind checking method that is used for subscriber equipment according to claim 12 also comprises:
If the schedule information of the up-downgoing shared channel of this subscriber equipment not on the basic carrier frequency, then adopt general descending control information format on indicated other the non-basic carrier frequency of down control channel index information bit, to carry out blind Detecting, obtain resource allocation information, read the data message on the corresponding carrier frequency.
14., also comprise according to claim 12 or the 13 described down control channel blind checking methods that are used for subscriber equipment:
If do not detect the control information at this subscriber equipment, then this customer equipment data not in this dispatching cycle finishes to work as pre-treatment, waits for next dispatching cycle.
15., it is characterized in that according to the described down control channel blind checking method that is used for subscriber equipment of one of claim 12～14:
Described improved descending control information format comprises the whole fields and the down control channel index information bit of general descending control information format,
If the schedule information of the up-downgoing shared channel of this subscriber equipment is arranged on the basic carrier frequency, whole fields of the general descending control information format in the then described improved descending control information format encapsulate according to general descending control information format,
If the schedule information of the up-downgoing shared channel of this subscriber equipment not on the basic carrier frequency, whole fields of the general descending control information format in the then described improved descending control information format are to be provided with arbitrarily,
Described down control channel index information bit is used to indicate the down control channel information of this subscriber equipment to be positioned at which carrier frequency, and
The descending control information format of described introducing only comprises described down control channel index information bit.
16., it is characterized in that according to the described down control channel blind checking method that is used for subscriber equipment of one of claim 12～14:
Described improved descending control information format comprises the whole fields and the down control channel index information bit of general descending control information format,
If the schedule information of the up-downgoing shared channel of this subscriber equipment is arranged on the basic carrier frequency, whole fields of the general descending control information format in the then described improved descending control information format encapsulate according to general descending control information format,
If the schedule information of the up-downgoing shared channel of this subscriber equipment not on the basic carrier frequency, control information on the then basic carrier frequency is to adopt under this subscriber equipment mode of operation that the minimum descending control information format of bit number encapsulates in the improved descending control information format, and the resource allocation information field of the general descending control information format in the described at least improved descending control information format is put 0
Described down control channel index information bit is used to indicate the down control channel information of this subscriber equipment to be positioned at which carrier frequency, and
The descending control information format of described introducing only comprises described down control channel index information bit.
17., it is characterized in that according to the described down control channel blind checking method that is used for subscriber equipment of one of claim 12～16:
Described general descending control information format is the new descending control information format of introducing that is used to encapsulate corresponding control information of descending control information format and/or LTE-Advanced system that defines in the LTE system.
18., it is characterized in that according to the described down control channel blind checking method that is used for subscriber equipment of one of claim 12～17:
The described down control channel blind checking method that is used for subscriber equipment is applicable to the LTE-Advanced system.
CN2008101727037A 2008-11-03 2008-11-03 Descending control channel assignment and blind test method Expired - Fee Related CN101730139B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2008101727037A CN101730139B (en) 2008-11-03 2008-11-03 Descending control channel assignment and blind test method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2008101727037A CN101730139B (en) 2008-11-03 2008-11-03 Descending control channel assignment and blind test method

Publications (2)

Publication Number Publication Date
CN101730139A true CN101730139A (en) 2010-06-09
CN101730139B CN101730139B (en) 2013-10-16

Family

ID=42450156

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2008101727037A Expired - Fee Related CN101730139B (en) 2008-11-03 2008-11-03 Descending control channel assignment and blind test method

Country Status (1)

Country Link
CN (1) CN101730139B (en)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102255688A (en) * 2011-07-06 2011-11-23 合肥东芯通信股份有限公司 LTEPDCCH (Long Term Evolution System Physical Downlink Control Channel) blind inspection control method and device
WO2011153700A1 (en) * 2010-06-10 2011-12-15 富士通株式会社 Method for transmitting and receiving message, base station and mobile station
CN102378211A (en) * 2010-08-20 2012-03-14 电信科学技术研究院 Blind inspection control processing method and equipment for machine type communication equipment
CN102420786A (en) * 2010-09-27 2012-04-18 大唐移动通信设备有限公司 Blind detection method and equipment of physical downlink control channel
CN102457929A (en) * 2010-10-15 2012-05-16 电信科学技术研究院 Frequency point migration triggering method and equipment, frequency point migration method and system, and equipment
WO2012083766A1 (en) * 2010-12-24 2012-06-28 大唐移动通信设备有限公司 Method, system and device for transmitting and detecting physical downlink control channel
CN101841892B (en) * 2009-03-18 2012-10-03 中国移动通信集团公司 Method, equipment and system for indicating and detecting PDCCH in a carrier aggregation system
CN102740473A (en) * 2011-04-08 2012-10-17 中兴通讯股份有限公司 Method and system for processing downlink control information
WO2013040969A1 (en) * 2011-09-23 2013-03-28 华为技术有限公司 Method, user equipment, and base station for information transmission
CN103457688A (en) * 2012-05-29 2013-12-18 中兴通讯股份有限公司 Method and device for blind detection of downlink control information
CN103548407A (en) * 2011-03-23 2014-01-29 松下电器产业株式会社 Resource assignment for single and multiple cluster transmission
CN104125613A (en) * 2013-04-28 2014-10-29 电信科学技术研究院 Cell reselection method, system and equipment thereof
CN104683069A (en) * 2015-02-13 2015-06-03 大唐联仪科技有限公司 Blind detection method and system for physical downlink control channel (PDCCH)
CN105493562A (en) * 2013-08-09 2016-04-13 富士通株式会社 Information sending method, detecting method and device thereof and communication system
EP3258720A4 (en) * 2015-03-27 2017-12-20 Huawei Technologies Co., Ltd. Method and device for reducing interference
WO2018058563A1 (en) * 2016-09-30 2018-04-05 广东欧珀移动通信有限公司 Method for transmitting downlink control information, network side device and terminal device
WO2019137448A1 (en) * 2018-01-12 2019-07-18 中兴通讯股份有限公司 Method, apparatus and device for determining and indicating channel structure of time unit
CN110912656A (en) * 2018-09-14 2020-03-24 华为技术有限公司 Communication method and device
CN112312558A (en) * 2019-08-02 2021-02-02 中国移动通信有限公司研究院 Transmission method, detection method, network equipment and terminal
CN114390655A (en) * 2018-11-02 2022-04-22 中兴通讯股份有限公司 Power saving scheme in wireless communications

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ZTE: "General control channel design for LTE-A", 《3GPP TSG-RAN WG1 #54BIS》 *

Cited By (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101841892B (en) * 2009-03-18 2012-10-03 中国移动通信集团公司 Method, equipment and system for indicating and detecting PDCCH in a carrier aggregation system
WO2011153700A1 (en) * 2010-06-10 2011-12-15 富士通株式会社 Method for transmitting and receiving message, base station and mobile station
CN102378211B (en) * 2010-08-20 2014-03-19 电信科学技术研究院 Blind inspection control processing method and equipment for machine type communication equipment
CN102378211A (en) * 2010-08-20 2012-03-14 电信科学技术研究院 Blind inspection control processing method and equipment for machine type communication equipment
CN102420786A (en) * 2010-09-27 2012-04-18 大唐移动通信设备有限公司 Blind detection method and equipment of physical downlink control channel
CN102420786B (en) * 2010-09-27 2014-11-26 大唐移动通信设备有限公司 Blind detection method and equipment of physical downlink control channel
CN102457929A (en) * 2010-10-15 2012-05-16 电信科学技术研究院 Frequency point migration triggering method and equipment, frequency point migration method and system, and equipment
WO2012083766A1 (en) * 2010-12-24 2012-06-28 大唐移动通信设备有限公司 Method, system and device for transmitting and detecting physical downlink control channel
US11963196B2 (en) 2011-03-23 2024-04-16 Sun Patent Trust Resource assignment for single and multiple cluster transmission
US11696308B2 (en) 2011-03-23 2023-07-04 Sun Patent Trust Resource assignment for single and multiple cluster transmission
US11234231B2 (en) 2011-03-23 2022-01-25 Sun Patent Trust Resource assignment for single and multiple cluster transmission
CN103548407A (en) * 2011-03-23 2014-01-29 松下电器产业株式会社 Resource assignment for single and multiple cluster transmission
CN103548407B (en) * 2011-03-23 2017-10-24 太阳专利信托公司 Resource allocation for single and multiple cluster transmission
CN102740473B (en) * 2011-04-08 2017-12-01 中兴通讯股份有限公司 A kind of processing method and system of Downlink Control Information
CN102740473A (en) * 2011-04-08 2012-10-17 中兴通讯股份有限公司 Method and system for processing downlink control information
CN102255688B (en) * 2011-07-06 2013-04-10 合肥东芯通信股份有限公司 LTEPDCCH (Long Term Evolution System Physical Downlink Control Channel) blind inspection control method and device
CN102255688A (en) * 2011-07-06 2011-11-23 合肥东芯通信股份有限公司 LTEPDCCH (Long Term Evolution System Physical Downlink Control Channel) blind inspection control method and device
US9392595B2 (en) 2011-09-23 2016-07-12 Huawei Technologies Co., Ltd. Control information transmission method, user equipment, and base station
CN103024807B (en) * 2011-09-23 2015-08-19 华为技术有限公司 The method of control information transmission, subscriber equipment and base station
WO2013040969A1 (en) * 2011-09-23 2013-03-28 华为技术有限公司 Method, user equipment, and base station for information transmission
CN103024807A (en) * 2011-09-23 2013-04-03 华为技术有限公司 Method for transmitting control information, user equipment and base station
CN103457688A (en) * 2012-05-29 2013-12-18 中兴通讯股份有限公司 Method and device for blind detection of downlink control information
CN103457688B (en) * 2012-05-29 2018-09-28 中兴通讯股份有限公司 Downlink Control Information blind checking method and device
WO2014177037A1 (en) * 2013-04-28 2014-11-06 电信科学技术研究院 Method, system and device for cell reselection
CN104125613A (en) * 2013-04-28 2014-10-29 电信科学技术研究院 Cell reselection method, system and equipment thereof
CN104125613B (en) * 2013-04-28 2018-03-16 电信科学技术研究院 A kind of method of cell reselection, system and equipment
CN105493562A (en) * 2013-08-09 2016-04-13 富士通株式会社 Information sending method, detecting method and device thereof and communication system
CN104683069A (en) * 2015-02-13 2015-06-03 大唐联仪科技有限公司 Blind detection method and system for physical downlink control channel (PDCCH)
CN104683069B (en) * 2015-02-13 2018-04-27 大唐联仪科技有限公司 A kind of physical downlink control channel PDCCH blind checking method and system
US10165562B2 (en) 2015-02-13 2018-12-25 Datang Linktester Technology Co., Ltd. Blind detection method and system for physical downlink control channel (PDCCH)
EP3258720A4 (en) * 2015-03-27 2017-12-20 Huawei Technologies Co., Ltd. Method and device for reducing interference
US10939424B2 (en) 2016-09-30 2021-03-02 Guangdong Oppo Mobile Method for transmitting downlink control information, network side device and terminal device
WO2018058563A1 (en) * 2016-09-30 2018-04-05 广东欧珀移动通信有限公司 Method for transmitting downlink control information, network side device and terminal device
WO2019137448A1 (en) * 2018-01-12 2019-07-18 中兴通讯股份有限公司 Method, apparatus and device for determining and indicating channel structure of time unit
CN110912656B (en) * 2018-09-14 2021-02-26 华为技术有限公司 Communication method and device
CN110912656A (en) * 2018-09-14 2020-03-24 华为技术有限公司 Communication method and device
US11889513B2 (en) 2018-09-14 2024-01-30 Huawei Technologies Co., Ltd. Communication method and apparatus
CN114390655A (en) * 2018-11-02 2022-04-22 中兴通讯股份有限公司 Power saving scheme in wireless communications
CN114390655B (en) * 2018-11-02 2024-02-27 中兴通讯股份有限公司 Energy saving scheme in wireless communication
CN112312558A (en) * 2019-08-02 2021-02-02 中国移动通信有限公司研究院 Transmission method, detection method, network equipment and terminal

Also Published As

Publication number Publication date
CN101730139B (en) 2013-10-16

Similar Documents

Publication Publication Date Title
CN101730139B (en) Descending control channel assignment and blind test method
US10863516B2 (en) Communications device and method
US10117238B2 (en) Mobile communications system, network element and method for resource allocation on a virtual carrier for machine-type communications with a narrow band EPDCCH
US11038561B2 (en) Method and apparatus for transmitting data
CN103458513B (en) Wireless communications method and base station and terminal
CN102461301B (en) Method for indicating dynamic allocation of component carriers in multi-component carrier systems
US9871636B2 (en) Enhanced control channel element (ECCE) based physical downlink shared channel (PDSCH) resource allocation for long-term evolution (LTE)
CN102740477B (en) The method that subframe in time-division duplex system configures, base station and subscriber equipment
CN104113925B (en) Authorization signaling transmission, acquisition methods and device
CN108111281B (en) Data channel parameter configuration method and device
CN108076520B (en) Method and equipment used in UE and base station
EP2428082B1 (en) Method, apparatus and computer readable medium embodying a program for resource allocation
CN109889248A (en) Method, user equipment and the base station of reporting status information of channel
WO2012096394A1 (en) Method for triggering aperiodic channel state information feedback
CN103687042A (en) Transmission method and system for physical downlink shared channel
JP2016509803A (en) Mobile communication base station and method for allocating resources outside a virtual carrier based on UE capabilities
CN111865479B (en) Communication method and device
RU2588600C1 (en) Method of transmitting downlink control information, device based on network and user equipment
CN110291733B (en) Unauthorized transmission method, user terminal and base station
CN106899395A (en) Uplink control signaling transmission method and device in a kind of LAA transmission
CN110999243B (en) Method for transmitting and receiving scheduling information in communication system
CN103428858B (en) The sending method of control signaling, the detection method of control signaling, terminal and base station
CN108141850A (en) Aerogram
CN101784114A (en) Multi-cell synergetic data transmission method, system and device
CN104349473A (en) Time division duplex upstream and downstream configuration information transmission method and device

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20131016

Termination date: 20151103

EXPY Termination of patent right or utility model