CN101262322A - Transmission method and device for uplink and downlink percent information in time division duplex system - Google Patents
Transmission method and device for uplink and downlink percent information in time division duplex system Download PDFInfo
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Abstract
The invention provides a method and a device for sending information of proportion of upstream and downstream in a time division duplex system. The method comprises the following steps: all proportional relations of upstream and downstream are divided into two groups to ensure that proportional relation of upstream and downstream in each group has the same maximum number of corresponding physical hybrid retransmission channels under the condition of same bandwidth; command of proportion of upstream and downstream which instructs the proportional relation of upstream and downstream is carried by D-BCH; the D-BCH is sent on a subframe 0 model or/and a subframe model 5 from a transmission side. The invention does not need to send information of proportion of upstream and downstream on P-BCH so as to ensure the consistency of P-BCH of a TDD system and an FDD system and the problem of not being able to obtain information caused by dead embrace does not exist.
Description
Technical field
The present invention relates to the communications field, the sending method and the device of up-downgoing percent information in a kind of tdd systems.
Background technology
Time division duplex (Time Division Duplex, TDD) system key character is, the subframe that is used for the up-downgoing transmission is configurable.The frame structure of LTE (Long Term Evolution, Long Term Evolution) system TDD mode, as shown in Figure 1.In this frame structure; a 10ms (307200Ts; 1ms=30720 Ts) radio frames is divided into the field of two 5ms, and it is 0.5ms (15360 Ts) time slot and 3 special time slots that each field comprises 8 length: descending pilot frequency time slot DwPTS (Downlink Pilot Time Slot), protection be GP (Guard Period) and uplink pilot time slot UpPTS (Uplink PilotTime Slot) at interval.The length of these three each time slots of special time slot is configurable, but total length is 1ms (30720 Ts).The time slot of per two 0.5ms is formed the subframe that length is 1ms, is numbered subframe #0～subframe #9, and wherein, subframe #1 and subframe #6 comprise above-mentioned said special time slot, and subframe #0 and/or subframe #5 and DwPTS are fixed as descending time slot.Also there is another kind of model F DD (Frequency Division Duplex, Frequency Division Duplexing (FDD)) in current LTE system.
Physical Control Format Indicator Channel can carry 2 bit informations, OFDM (Orthogonal Frequency DivisionMultiplexing as the expression transmitting physical downlink channel control, abbreviation OFDM) quantity of symbol, in general subframe, the quantity that is used as the OFDM symbol of transmitting physical downlink channel control is 1,2,3, need 2 bit informations to represent, in DwPTS, the quantity that is used as the OFDM symbol of transmitting physical downlink channel control is 1,2, only need 1 bit information just can represent, like this, the Physical Control Format Indicator Channel among the DwPTS can carry other information of 1 bit again.
Under above-mentioned frame structure, the ratio of up-downgoing (referring to general uplink and downlink timeslot, non-special time slot) is relevant with switching cycle.When switching cycle is 5ms, and during former and later two 5ms identical, the up-downgoing ratio has four kinds of options: 1: 3/2: 2/3: 1/3: 5.When switching cycle was 10ms, because subframe #5 and DwPTS are fixed as descending sub frame, therefore, the up-downgoing ratio also had three kinds of options: 6: 3/7: 2/8: 1.Wherein, the selection in 5: 3 5ms cycles and 10: 0 10ms cycles is still waiting further discussion.
About up-downgoing switching proportion information in any transmission problem, current also do not have to come to a conclusion, wherein a kind of scheme is to go up at Dynamic Broadcast Channel D-BCH (Dynamic Broadcast Channel) to send, but in realizing process of the present invention, the inventor finds that the user need obtain the positional information of Dynamic Broadcast Channel by downlink physical control channel, definite needs of Physical Downlink Control Channel position are known the quantity information of downlink physical mixed retransfer channel, the quantity information of downlink physical mixed retransfer channel is relevant with the up-downgoing proportionate relationship again, and the up-downgoing proportionate relationship obtains from Dynamic Broadcast Channel again, this has just produced a deadlock problem, and the information that makes all can't obtain.
Put forward another kind of solution is to be placed on Physical Broadcast Channel P-BCH (Physical Broadcast Channel) to go up transmission for this reason, but in realizing process of the present invention, the inventor finds to represent that the up-downgoing percent information needs 3 bits at least, this will cause coding, modulation and the mapping of the P-BCH of TDD system and FDD system all different, and this will increase the complexity of P-BCH demodulation.
Summary of the invention
The present invention aims to provide the sending method and the device of up-downgoing percent information in a kind of tdd systems, to solve the problem that prior art P-BCH transmission proportionate relationship causes demodulated complex Du Taigao.
In an embodiment of the present invention, the sending method of up-downgoing percent information in a kind of tdd systems is provided, may further comprise the steps: all up-downgoing proportionate relationships are divided into 2 groups, make the maximum quantity of all up-downgoing proportionate relationships corresponding physical mixed retransfer channel under same band in each group identical; Carry the up-downgoing ratio signaling of indication up-downgoing proportionate relationship by D-BCH; And transmitter side subframe #0 or and subframe #5 on send D-BCH.
Preferably, all up-downgoing proportionate relationships are divided into 2 groups, make that the maximum quantity of all up-downgoing proportionate relationships corresponding physical mixed retransfer channel under same band is identical in each group specifically comprises: be group 1 in 1: 3 of the 5ms cycle, remaining proportionate relationship is group 2; Wherein, organizing 1 corresponding physical mixed retransfer channel quantity is 2 needed physical mixed retransfer channel quantity of sub-frame of uplink; Organizing 2 corresponding physical mixed retransfer channel quantity is 0; Perhaps, 1: 3 of 5ms cycle and 3: 5 of 10ms cycle are group 1, and remaining proportionate relationship is group 2; Wherein, organizing 1 corresponding physical mixed retransfer channel quantity is 1 the needed physical mixed retransfer channel quantity of sub-frame of uplink; Organizing 2 corresponding physical mixed retransfer channel quantity is 0.
Preferably, also comprise: receiver side receive subframe #0 or and subframe #5; Carry out blind Detecting according to group 1 and group 2 corresponding physical mixed retransfer channel quantity respectively, to solve the target physical down control channel; The up-downgoing proportionate relationship of from target physical down control channel acquisition D-BCH, indicating.
Preferably, carrying out blind Detecting according to group 1 and group 2 corresponding physical mixed retransfer channel quantity respectively specifically comprises: carry out blind Detecting according to group 2 earlier, carry out blind Detecting according to group 1 again.
Preferably, also comprise: the group number signaling of the group number of group under the structure indication up-downgoing proportionate relationship, being 2 by packet count, to obtain the group number signaling be 1 bit; Transmitter side sends the group number signaling on the Physical Control Format Indicator Channel in DwPTS.
Preferably, also comprise: the group number signaling of the group number of group under the structure indication up-downgoing proportionate relationship, being 2 by packet count, to obtain the group number signaling be 1 bit; Transmitter side sends the group number signaling on auxiliary synchronization channel; Wherein, each value of the group number signaling of 1 bit being passed through the sequence of BPSK modulation and auxiliary synchronization channel multiplies each other, and sends the auxiliary synchronization channel through ovennodulation then.
Preferably, also comprise: the group number signaling of the group number of group under the structure indication up-downgoing proportionate relationship, being 2 by packet count, to obtain the group number signaling be 1 bit; Transmitter side sends the group number signaling on primary synchronization channel; Wherein, each value of the group number signaling of 1 bit being passed through the sequence of BPSK modulation and primary synchronization channel multiplies each other, and sends the primary synchronization channel through ovennodulation.
Preferably, also comprise: the group number signaling of the group number of group under the structure indication up-downgoing proportionate relationship, being 2 by packet count, to obtain the group number signaling be 1 bit; Transmitter side sends the group number signaling on P-BCH.
Preferably, also comprise: receiver side receives the group number signaling on corresponding channel; From the group number signaling, solve the group number of indication; According to group number subframe #0 or and subframe #5 on solve D-BCH, from D-BCH, obtain the up-downgoing proportionate relationship of indication.
In an embodiment of the present invention, the sending method of up-downgoing percent information in a kind of tdd systems also is provided, may further comprise the steps: all up-downgoing proportionate relationships are divided into 3 groups, make the maximum quantity of all up-downgoing proportionate relationships corresponding physical mixed retransfer channel under same band in each group identical; Carry the up-downgoing ratio signaling of indication up-downgoing proportionate relationship by D-BCH; And transmitter side subframe #0 or and subframe #5 on send D-BCH.
Preferably, all up-downgoing proportionate relationships are divided into 3 groups, make that the maximum quantity of all up-downgoing proportionate relationships corresponding physical mixed retransfer channel under same band is identical in each group specifically comprises: 1: 3 of 5ms cycle is group 1, be group 2 in 3: 5 of the 10ms cycle, remaining proportionate relationship is group 3; Wherein, organizing 1 corresponding physical mixed retransfer channel quantity is 2 needed physical mixed retransfer channel quantity of sub-frame of uplink; Organizing 2 corresponding physical mixed retransfer channel quantity is 1 the needed physical mixed retransfer channel quantity of sub-frame of uplink; Organizing 3 corresponding physical mixed retransfer channel quantity is 0.
Preferably, also comprise: receiver side receive subframe #0 or and subframe #5; Respectively according to group 1, group 2 and organize 3 corresponding physical mixed retransfer channel quantity and carry out blind Detecting, to solve the target physical down control channel; The up-downgoing proportionate relationship of from target physical down control channel acquisition D-BCH, indicating.
Preferably, respectively according to group 1, group 2 with organize 3 corresponding physical mixed retransfer channel quantity and carry out blind Detecting and specifically comprise: carry out blind Detecting according to group 2 earlier, carry out blind Detecting according to group 3 again, carry out blind Detecting according to group 1 at last; Perhaps, carry out blind Detecting according to group 3 earlier, carry out blind Detecting according to group 2 again, carry out blind Detecting according to group 1 at last.
Preferably, also comprise: the group number signaling of the group number of group under the structure indication up-downgoing proportionate relationship, being 3 by packet count, to obtain the group number signaling be 2 bits; Transmitter side sends the group number signaling on the Physical Control Format Indicator Channel in DwPTS; Wherein, send first bit among first DwPTS in a radio frames on the Physical Control Format Indicator Channel, represent that current group number is group 3 or organizes 1 and organize 2; Second bit that sends on the Physical Control Format Indicator Channel among second DwPTS in a radio frames represents that current group number is group 1 or organizes 2.
Preferably, also comprise: the group number signaling of the group number of group under the structure indication up-downgoing proportionate relationship, being 3 by packet count, to obtain the group number signaling be 2 bits; Transmitter side sends the group number signaling on auxiliary synchronization channel; Wherein, each value of the group number signaling of 2 bits being passed through the sequence of QPSK modulation and auxiliary synchronization channel multiplies each other, and sends the auxiliary synchronization channel through ovennodulation then.
Preferably, also comprise: the group number signaling of the group number of group under the structure indication up-downgoing proportionate relationship, being 3 by packet count, to obtain the group number signaling be 2 bits; Transmitter side sends the group number signaling on primary synchronization channel; Wherein, each value of the group number signaling of 2 bits being passed through the sequence of QPSK modulation and primary synchronization channel multiplies each other, and sends the primary synchronization channel through ovennodulation then.
Preferably, also comprise: the group number signaling of the group number of group under the structure indication up-downgoing proportionate relationship, being 3 by packet count, to obtain the group number signaling be 2 bits; Transmitter side sends the group number signaling on P-BCH.
Preferably, also comprise: receiver side receives the group number signaling on corresponding channel; From the group number signaling, solve the group number of indication; According to group number subframe #0 or and subframe #5 on solve D-BCH, from D-BCH, obtain the up-downgoing proportionate relationship of indication.
Preferably, transmitter side subframe #0 or and subframe #5 on send D-BCH and specifically comprise: transmitter side sends D-BCH on subframe #5.
In an embodiment of the present invention, the dispensing device of up-downgoing percent information in a kind of tdd systems also is provided, comprise: grouping module, be used for all up-downgoing proportionate relationships are divided into 2 groups, make the maximum quantity of all up-downgoing proportionate relationships corresponding physical mixed retransfer channel under same band in each group identical; First placement module is used for carrying the up-downgoing ratio signaling of indicating the up-downgoing proportionate relationship by D-BCH; Second placement module, be used for subframe #0 or and subframe #5 on send D-BCH.
In an embodiment of the present invention, the dispensing device of up-downgoing percent information in a kind of tdd systems also is provided, comprise: grouping module, be used for all up-downgoing proportionate relationships are divided into 3 groups, make the maximum quantity of all up-downgoing proportionate relationships corresponding physical mixed retransfer channel under same band in each group identical; First placement module is used for carrying the up-downgoing ratio signaling of indicating the up-downgoing proportionate relationship by D-BCH; Second placement module, be used for subframe #0 or and subframe #5 on send D-BCH.
The sending method and the device of up-downgoing percent information need not to send on P-BCH in the TDD system of the foregoing description, thereby have guaranteed the consistency of TDD system and the P-BCH of FDD system, and can produce of deadlock and problem that can't acquired information.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 shows the frame structure schematic diagram of tdd systems;
Fig. 2 shows the flow chart according to the sending method of up-downgoing percent information in the tdd systems of the embodiment of the invention;
Fig. 3 shows the block diagram according to the dispensing device of up-downgoing percent information in the tdd systems of the embodiment of the invention.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the present invention in detail.
Fig. 2 shows the flow chart according to the sending method of up-downgoing percent information in the tdd systems of the embodiment of the invention, comprising:
Step S10 is divided into 2 groups with all up-downgoing proportionate relationships, makes the maximum quantity of all up-downgoing proportionate relationships corresponding PHICH under same band in each group identical;
Step S20 carries the up-downgoing ratio signaling of indicating the up-downgoing proportionate relationship by D-BCH; And
Step S30, transmitter side sends D-BCH on subframe #0 and/or subframe #5.
D-BCH sends on subframe #0 and/or subframe #5 in this method; Represent that the information of concrete up-downgoing ratio carries by D-BCH.The sending method of up-downgoing percent information need not to send on P-BCH in this TDD system, thereby has guaranteed the consistency of TDD system and the P-BCH of FDD system, and can produce of deadlock and problem that can't acquired information.
Preferably, the grouping step specifically comprises: be group 1 in 1: 3 of the 5ms cycle, remaining proportionate relationship is group 2; Wherein, the PHICH quantity of organizing 1 correspondence is 2 needed PHICH quantity of sub-frame of uplink; The PHICH quantity of organizing 2 correspondences is 0; Perhaps, 1: 3 of 5ms cycle and 3: 5 of 10ms cycle are group 1, and remaining proportionate relationship is group 2; Wherein, organizing 1 corresponding physical mixed retransfer channel quantity is 1 the needed physical mixed retransfer channel quantity of sub-frame of uplink; Organizing 2 corresponding physical mixed retransfer channel quantity is 0.
Preferably, the reception blind checking method that also comprises group information: receiver side receives subframe #0 and/or subframe #5; Carry out blind Detecting according to the PHICH quantity of group 1 and group 2 correspondences respectively, to solve the target physical down control channel; The up-downgoing proportionate relationship of from target physical down control channel acquisition D-BCH, indicating.
Preferably, carrying out blind Detecting according to group 1 and group 2 corresponding physical mixed retransfer channel quantity respectively specifically comprises: carry out blind Detecting according to group 2 earlier, carry out blind Detecting according to group 1 again.
Above-mentioned preferred embodiment has constituted the scheme of blind Detecting.
Embodiment 1
After user's start was finished synchronously, the user obtained the quantity indication information of aerial information, system bandwidth information and physical mixed retransfer channel by separating Physical Broadcast Channel; Then, on subframe #0 or subframe #5, carry out blind Detecting according to the situation that does not have PHICH earlier, carry out blind Detecting according to the situation of 2 needed PHICH quantity of sub-frame of uplink again.Thus, can solve Physical Downlink Control Channel,, can solve D-BCH and go up information transmitted again according to Physical Downlink Control Channel, thereby, the up-downgoing proportionate relationship obtained.
Preferably, transmitter side comprises that also following method sends the up-downgoing percent information:
Method one:
The group number signaling of the group number of group under the structure indication up-downgoing proportionate relationship, being 2 by packet count, to obtain the group number signaling be 1 bit; Transmitter side sends the group number signaling on the Physical Control Format Indicator Channel in DwPTS.
Method two
The group number signaling of the group number of group under the structure indication up-downgoing proportionate relationship, being 2 by packet count, to obtain the group number signaling be 1 bit; Transmitter side sends the group number signaling on auxiliary synchronization channel; Wherein, each value of the group number signaling of 1 bit being passed through the sequence of BPSK modulation and auxiliary synchronization channel multiplies each other, and sends the auxiliary synchronization channel through ovennodulation then.
Method three
The group number signaling of the group number of group under the structure indication up-downgoing proportionate relationship, being 2 by packet count, to obtain the group number signaling be 1 bit; Transmitter side sends the group number signaling on primary synchronization channel; Wherein, each value of the group number signaling of 1 bit being passed through the sequence of BPSK modulation and primary synchronization channel multiplies each other, and sends the primary synchronization channel through ovennodulation.
Method four
The group number signaling of the group number of group under the structure indication up-downgoing proportionate relationship, being 2 by packet count, to obtain the group number signaling be 1 bit; Transmitter side sends the group number signaling on P-BCH.
Preferably, at above-mentioned sending method, also comprise the reception detection method of group information, step is as follows:
Receiver side receives the group number signaling on corresponding channel;
From the group number signaling, solve the group number of indication;
According to group number subframe #0 or and subframe #5 on solve D-BCH, from D-BCH, obtain the up-downgoing proportionate relationship of indication.
Embodiment 2
After user's start was finished synchronously, the user obtained the quantity indication information of aerial information, system bandwidth information and physical mixed retransfer channel by separating Physical Broadcast Channel; Then, separate Physical Control Format Indicator Channel among the DwPTS, obtain the group under the up-downgoing proportionate relationship.Thus, can obtain the maximum quantity that subframe #0 and/or subframe #5 go up physical mixed retransfer channel; According to the quantity of current physical mixed retransfer channel, can solve Physical Downlink Control Channel, again according to Physical Downlink Control Channel, can solve D-BCH and go up information transmitted, thereby, obtain the up-downgoing proportionate relationship.
Above scheme is that all up-downgoing proportionate relationships are divided into 2 groups, similarly, also provides a kind of in the embodiments of the invention all up-downgoing proportionate relationships are divided into 3 groups technical scheme.In the HARQ process configuration, when the physical mixed retransfer channel of 3: 5 corresponding varying numbers on subframe #0 Huo and subframe #5 in 1: 3 of the 5ms cycle and 10ms cycle, be divided into 3 groups, be divided into 2 groups when identical; Be divided into 3 groups scheme below by the embodiment detailed description.
This sending method may further comprise the steps: all up-downgoing proportionate relationships are divided into 3 groups, make the maximum quantity of all up-downgoing proportionate relationships corresponding physical mixed retransfer channel under same band in each group identical; Carry the up-downgoing ratio signaling of indication up-downgoing proportionate relationship by D-BCH; And transmitter side subframe #0 or and subframe #5 on send D-BCH.
D-BCH sends on subframe #0 and/or subframe #5 in this method; Represent that the information of concrete up-downgoing ratio carries by D-BCH.The sending method of up-downgoing percent information need not to send on P-BCH in this TDD system, thereby has guaranteed the consistency of TDD system and the P-BCH of FDD system, and can produce of deadlock and problem that can't acquired information.
Below preferred embodiment all at all up-downgoing proportionate relationships being divided into 3 groups and make.
Preferably, all up-downgoing proportionate relationships are divided into 3 groups, make that the maximum quantity of all up-downgoing proportionate relationships corresponding physical mixed retransfer channel under same band is identical in each group specifically comprises: 1: 3 of 5ms cycle is group 1, be group 2 in 3: 5 of the 10ms cycle, remaining proportionate relationship is group 3; Wherein, organizing 1 corresponding physical mixed retransfer channel quantity is 2 needed physical mixed retransfer channel quantity of sub-frame of uplink; Organizing 2 corresponding physical mixed retransfer channel quantity is 1 the needed physical mixed retransfer channel quantity of sub-frame of uplink; Organizing 3 corresponding physical mixed retransfer channel quantity is 0.
Preferably, also comprise: receiver side receive subframe #0 or and subframe #5; Respectively according to group 1, group 2 and organize 3 corresponding physical mixed retransfer channel quantity and carry out blind Detecting, to solve the target physical down control channel; The up-downgoing proportionate relationship of from target physical down control channel acquisition D-BCH, indicating.
Preferably, respectively according to group 1, group 2 with organize 3 corresponding physical mixed retransfer channel quantity and carry out blind Detecting and specifically comprise: carry out blind Detecting according to group 2 earlier, carry out blind Detecting according to group 3 again, carry out blind Detecting according to group 1 at last; Perhaps, carry out blind Detecting according to group 3 earlier, carry out blind Detecting according to group 2 again, carry out blind Detecting according to group 1 at last.
Preferably, also comprise: the group number signaling of the group number of group under the structure indication up-downgoing proportionate relationship, being 3 by packet count, to obtain the group number signaling be 2 bits; Transmitter side sends the group number signaling on the Physical Control Format Indicator Channel in DwPTS.Wherein, send first bit among first DwPTS in a radio frames on the Physical Control Format Indicator Channel, represent that current group number is group 3 or organizes 1 and organize 2; Second bit that sends on the Physical Control Format Indicator Channel among second DwPTS in a radio frames represents that current group number is group 1 or organizes 2.
Preferably, also comprise: the group number signaling of the group number of group under the structure indication up-downgoing proportionate relationship, being 3 by packet count, to obtain the group number signaling be 2 bits; Transmitter side sends the group number signaling on auxiliary synchronization channel; Wherein, each value of the group number signaling of 2 bits being passed through the sequence of QPSK modulation and auxiliary synchronization channel multiplies each other, and sends the auxiliary synchronization channel through ovennodulation then.
Preferably, also comprise: the group number signaling of the group number of group under the structure indication up-downgoing proportionate relationship, being 3 by packet count, to obtain the group number signaling be 2 bits; Transmitter side sends the group number signaling on primary synchronization channel; Wherein, each value of the group number signaling of 2 bits being passed through the sequence of QPSK modulation and primary synchronization channel multiplies each other, and sends the primary synchronization channel through ovennodulation then.
Preferably, also comprise: the group number signaling of the group number of group under the structure indication up-downgoing proportionate relationship, being 3 by packet count, to obtain the group number signaling be 2 bits; Transmitter side sends the group number signaling on P-BCH.
Preferably, also comprise: receiver side receives the group number signaling on corresponding channel; From the group number signaling, solve the group number of indication; According to group number subframe #0 or and subframe #5 on solve D-BCH, from D-BCH, obtain the up-downgoing proportionate relationship of indication.
Preferably, transmitter side subframe #0 or and subframe #5 on send D-BCH and specifically comprise: transmitter side sends D-BCH on subframe #5.
Among all above-mentioned embodiment, preferred, transmitter side sends D-BCH on subframe #5.
Fig. 3 shows the block diagram according to the dispensing device of up-downgoing percent information in the tdd systems of the embodiment of the invention, comprising:
The dispensing device of up-downgoing percent information in a kind of tdd systems also is provided in the embodiment of the invention, comprise: grouping module, be used for all up-downgoing proportionate relationships are divided into 3 groups, make the maximum quantity of all up-downgoing proportionate relationships corresponding physical mixed retransfer channel under same band in each group identical; First placement module is used for carrying the up-downgoing ratio signaling of indicating the up-downgoing proportionate relationship by D-BCH; Second placement module, be used for subframe #0 or and subframe #5 on send D-BCH.
From above description, as can be seen, the sending method and the device of up-downgoing percent information need not to send on P-BCH in the TDD system of the foregoing description, thereby guaranteed the consistency of TDD system and the P-BCH of FDD system, and can produce of deadlock and problem that can't acquired information.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (21)
1. the sending method of up-downgoing percent information in the tdd systems is characterized in that, may further comprise the steps:
All up-downgoing proportionate relationships are divided into 2 groups, make the maximum quantity of all up-downgoing proportionate relationships corresponding physical mixed retransfer channel under same band in each group identical;
Carry the up-downgoing ratio signaling of indication up-downgoing proportionate relationship by D-BCH; And
Transmitter side subframe #0 or and subframe #5 on send D-BCH.
2. sending method according to claim 1 is characterized in that, all up-downgoing proportionate relationships are divided into 2 groups, makes that the maximum quantity of all up-downgoing proportionate relationships corresponding physical mixed retransfer channel under same band is identical in each group specifically comprises:
Be group 1 in 1: 3 of the 5ms cycle, remaining proportionate relationship is group 2; Wherein, described group 1 corresponding physical mixed retransfer channel quantity is 2 needed physical mixed retransfer channel quantity of sub-frame of uplink; Organizing 2 corresponding physical mixed retransfer channel quantity is 0; Perhaps,
1: 3 of 5ms cycle and 3: 5 of 10ms cycle are group 1, and remaining proportionate relationship is group 2; Wherein, described group 1 corresponding physical mixed retransfer channel quantity is 1 the needed physical mixed retransfer channel quantity of sub-frame of uplink; Organizing 2 corresponding physical mixed retransfer channel quantity is 0.
3. sending method according to claim 2 is characterized in that, also comprises:
Receiver side receive described subframe #0 or and subframe #5;
Carry out blind Detecting according to described group 1 with group 2 corresponding physical mixed retransfer channel quantity respectively, to solve the target physical down control channel;
The up-downgoing proportionate relationship of from described target physical down control channel acquisition D-BCH, indicating.
4. sending method according to claim 3 is characterized in that, carries out blind Detecting according to group 1 and group 2 corresponding physical mixed retransfer channel quantity respectively and specifically comprises: carry out blind Detecting according to described group 2 earlier, carry out blind Detecting according to described group 1 again.
5. sending method according to claim 2 is characterized in that, also comprises:
The group number signaling of the group number of group under the structure indication up-downgoing proportionate relationship, being 2 by packet count, to obtain described group number signaling be 1 bit;
Described transmitter side sends described group number signaling on the Physical Control Format Indicator Channel in DwPTS.
6. sending method according to claim 2 is characterized in that, also comprises:
The group number signaling of the group number of group under the structure indication up-downgoing proportionate relationship, being 2 by packet count, to obtain described group number signaling be 1 bit;
Described transmitter side sends described group number signaling on auxiliary synchronization channel;
Wherein, each value of the described group number signaling of 1 bit being passed through the sequence of BPSK modulation and described auxiliary synchronization channel multiplies each other, and sends the described auxiliary synchronization channel through ovennodulation then.
7. sending method according to claim 2 is characterized in that, also comprises:
The group number signaling of the group number of group under the structure indication up-downgoing proportionate relationship, being 2 by packet count, to obtain described group number signaling be 1 bit;
Described transmitter side sends described group number signaling on primary synchronization channel;
Wherein, each value of the described group number signaling of 1 bit being passed through the sequence of BPSK modulation and described primary synchronization channel multiplies each other, and sends the described primary synchronization channel through ovennodulation.
8. sending method according to claim 2 is characterized in that, also comprises:
The group number signaling of the group number of group under the structure indication up-downgoing proportionate relationship, being 2 by packet count, to obtain described group number signaling be 1 bit;
Described transmitter side sends described group number signaling on P-BCH.
9. according to each described sending method of claim 5 to 8, it is characterized in that, also comprise:
Receiver side receives described group number signaling on corresponding channel;
From described group number signaling, solve the group number of indication;
According to group number subframe #0 or and subframe #5 on solve D-BCH, from D-BCH, obtain the up-downgoing proportionate relationship of indication.
10. the sending method of up-downgoing percent information in the tdd systems is characterized in that, may further comprise the steps:
All up-downgoing proportionate relationships are divided into 3 groups, make the maximum quantity of all up-downgoing proportionate relationships corresponding physical mixed retransfer channel under same band in each group identical;
Carry the up-downgoing ratio signaling of indication up-downgoing proportionate relationship by D-BCH; And
Transmitter side subframe #0 or and subframe #5 on send D-BCH.
11. sending method according to claim 10 is characterized in that, all up-downgoing proportionate relationships are divided into 3 groups, makes that the maximum quantity of all up-downgoing proportionate relationships corresponding physical mixed retransfer channel under same band is identical in each group specifically comprises:
Be group 1 to be group 2 in 3: 5 of the 10ms cycle that remaining proportionate relationship was group 3 in 1: 3 of the 5ms cycle;
Wherein, described group 1 corresponding physical mixed retransfer channel quantity is 2 needed physical mixed retransfer channel quantity of sub-frame of uplink; Described group 2 corresponding physical mixed retransfer channel quantity is 1 the needed physical mixed retransfer channel quantity of sub-frame of uplink; Described group 3 corresponding physical mixed retransfer channel quantity is 0.
12. sending method according to claim 11 is characterized in that, also comprises:
Receiver side receive described subframe #0 or and subframe #5;
Respectively according to described group 1, group 2 and organize 3 corresponding physical mixed retransfer channel quantity and carry out blind Detecting, to solve the target physical down control channel;
The up-downgoing proportionate relationship of from described target physical down control channel acquisition D-BCH, indicating.
13. sending method according to claim 12, it is characterized in that, respectively according to described group 1, group 2 with organize 3 corresponding physical mixed retransfer channel quantity and carry out blind Detecting and specifically comprise: carry out blind Detecting according to described group 2 earlier, carry out blind Detecting according to described group 3 again, carry out blind Detecting according to described group 1 at last; Perhaps, carry out blind Detecting according to described group 3 earlier, carry out blind Detecting according to described group 2 again, carry out blind Detecting according to described group 1 at last.
14. sending method according to claim 11 is characterized in that, also comprises:
The group number signaling of the group number of group under the structure indication up-downgoing proportionate relationship, being 3 by packet count, to obtain described group number signaling be 2 bits;
Described transmitter side sends described group number signaling on the Physical Control Format Indicator Channel in DwPTS;
Wherein, send first bit among first DwPTS in a radio frames on the Physical Control Format Indicator Channel, represent that current group number is group 3 or organizes 1 and organize 2; Second bit that sends on the Physical Control Format Indicator Channel among second DwPTS in a radio frames represents that current group number is group 1 or organizes 2.
15. sending method according to claim 11 is characterized in that, also comprises:
The group number signaling of the group number of group under the structure indication up-downgoing proportionate relationship, being 3 by packet count, to obtain described group number signaling be 2 bits;
Described transmitter side sends described group number signaling on auxiliary synchronization channel;
Wherein, each value of the described group number signaling of 2 bits being passed through the sequence of QPSK modulation and described auxiliary synchronization channel multiplies each other, and sends the described auxiliary synchronization channel through ovennodulation then.
16. sending method according to claim 11 is characterized in that, also comprises:
The group number signaling of the group number of group under the structure indication up-downgoing proportionate relationship, being 3 by packet count, to obtain described group number signaling be 2 bits;
Described transmitter side sends described group number signaling on primary synchronization channel;
Wherein, each value of the described group number signaling of 2 bits being passed through the sequence of QPSK modulation and described primary synchronization channel multiplies each other, and sends the described primary synchronization channel through ovennodulation then.
17. sending method according to claim 11 is characterized in that, also comprises:
The group number signaling of the group number of group under the structure indication up-downgoing proportionate relationship, being 3 by packet count, to obtain described group number signaling be 2 bits;
Described transmitter side sends described group number signaling on P-BCH.
18. according to each described sending method of claim 14 to 17, it is characterized in that, also comprise:
Receiver side receives described group number signaling on corresponding channel;
From described group number signaling, solve the group number of indication;
According to group number subframe #0 or and subframe #5 on solve D-BCH, from D-BCH, obtain the up-downgoing proportionate relationship of indication.
19. according to each described sending method of claim 1 to 18, it is characterized in that, transmitter side subframe #0 or and subframe #5 on send D-BCH and specifically comprise:
Described transmitter side sends D-BCH on subframe #5.
20. the dispensing device of up-downgoing percent information is characterized in that in the tdd systems, comprising:
Grouping module is used for all up-downgoing proportionate relationships are divided into 2 groups, makes the maximum quantity of all up-downgoing proportionate relationships corresponding physical mixed retransfer channel under same band in each group identical;
First placement module is used for carrying the up-downgoing ratio signaling of indicating the up-downgoing proportionate relationship by D-BCH;
Second placement module, be used for subframe #0 or and subframe #5 on send D-BCH.
21. the dispensing device of up-downgoing percent information is characterized in that in the tdd systems, comprising:
Grouping module is used for all up-downgoing proportionate relationships are divided into 3 groups, makes the maximum quantity of all up-downgoing proportionate relationships corresponding physical mixed retransfer channel under same band in each group identical;
First placement module is used for carrying the up-downgoing ratio signaling of indicating the up-downgoing proportionate relationship by D-BCH;
Second placement module, be used for subframe #0 or and subframe #5 on send D-BCH.
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| CN 200810084057 CN101262322B (en) | 2008-03-21 | 2008-03-21 | Transmission method and device for uplink and downlink percent information in time division duplex system |
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| CN 200810084057 CN101262322B (en) | 2008-03-21 | 2008-03-21 | Transmission method and device for uplink and downlink percent information in time division duplex system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102480348A (en) * | 2010-11-29 | 2012-05-30 | 中兴通讯股份有限公司 | Data transmission method and communication node |
| CN102685872A (en) * | 2011-03-11 | 2012-09-19 | 华为技术有限公司 | Communication method and device for time division duplex system |
| WO2013159304A1 (en) * | 2012-04-26 | 2013-10-31 | Nokia Siemens Networks Oy | Switching between downlink and uplink |
| CN101729136B (en) * | 2008-10-21 | 2014-03-12 | 华为技术有限公司 | Method, device and system for receiving control information |
| CN105101238A (en) * | 2014-05-07 | 2015-11-25 | 电信科学技术研究院 | Adjacent cell interference signal information notification method, adjacent cell interference inhibition method, and device |
| WO2016019750A1 (en) * | 2014-08-08 | 2016-02-11 | 中国移动通信集团公司 | Method, apparatus and system for network-assisted terminal blind detection, and related device |
| WO2016127412A1 (en) * | 2015-02-13 | 2016-08-18 | 华为技术有限公司 | Pbch retransmission method and base station |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE60044436D1 (en) * | 2000-11-03 | 2010-07-01 | Sony Deutschland Gmbh | Transmission power control for OFDM communication links |
| CN1198419C (en) * | 2003-01-16 | 2005-04-20 | 大唐移动通信设备有限公司 | Control method based on power of down doing guidance time slot |
| CN100399847C (en) * | 2005-02-24 | 2008-07-02 | 大唐移动通信设备有限公司 | Method for measuring adjacent cell |
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| CN101729136B (en) * | 2008-10-21 | 2014-03-12 | 华为技术有限公司 | Method, device and system for receiving control information |
| CN102480348A (en) * | 2010-11-29 | 2012-05-30 | 中兴通讯股份有限公司 | Data transmission method and communication node |
| CN102685872A (en) * | 2011-03-11 | 2012-09-19 | 华为技术有限公司 | Communication method and device for time division duplex system |
| CN102685872B (en) * | 2011-03-11 | 2015-01-21 | 华为技术有限公司 | Communication method and device for time division duplex system |
| US9444513B2 (en) | 2011-03-11 | 2016-09-13 | Huawei Technologies Co., Ltd. | Communication method and device for dynamic adjustment of downlink-uplink subframe configuration in a time division duplex system |
| WO2013159304A1 (en) * | 2012-04-26 | 2013-10-31 | Nokia Siemens Networks Oy | Switching between downlink and uplink |
| US9635653B2 (en) | 2012-04-26 | 2017-04-25 | Nokia Solutions And Networks Oy | Switching between downlink and uplink |
| CN105101238A (en) * | 2014-05-07 | 2015-11-25 | 电信科学技术研究院 | Adjacent cell interference signal information notification method, adjacent cell interference inhibition method, and device |
| CN105101238B (en) * | 2014-05-07 | 2018-11-27 | 电信科学技术研究院 | Adjacent area interference signal information notice method, method for inhibiting interference of neighborhood and device |
| WO2016019750A1 (en) * | 2014-08-08 | 2016-02-11 | 中国移动通信集团公司 | Method, apparatus and system for network-assisted terminal blind detection, and related device |
| WO2016127412A1 (en) * | 2015-02-13 | 2016-08-18 | 华为技术有限公司 | Pbch retransmission method and base station |
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