CN101500195A - Indication method, apparatus and system for timeslot configuration - Google Patents
Indication method, apparatus and system for timeslot configuration Download PDFInfo
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Abstract
The invention discloses an indicating method for the time slot configuration, comprising the following steps of: multiplexing MBSFN indicator bits; broadcasting the multiplexed MBSFN indicator bits on a broadcast channel; and informing whether an allocation mode for the upstream and the downstream subframes in a UE neighboring cell is consistent with the allocation mode for the upstream and the downstream subframes in an original cell. As the indicating method for the time slot configuration uses and multiplexes the MBSFN indicator bits existing in the broadcast control channels without increasing additional bits to perform the indication and the signaling costs are reduced. By indicating whether the allocation mode for the upstream and the downstream subframes in the UE neighboring cell is consistent with the allocation mode for the upstream and the downstream subframes in the original cell, references are provided on whether the UE conducts measurement or not. Corresponding to the indicating method for the time slot configuration, the invention also provides an indicating device and an indicating system for the time slot configuration.
Description
Technical Field
The present invention relates to the technical field of LTE (Long Time Evolution) for mobile communications, and in particular, to a method, an apparatus, and a system for indicating timeslot configuration.
Background
In the LTE system, when a UE (User Equipment) is located at an edge of a local cell, a neighboring cell is measured to determine whether handover to the neighboring cell is required, where the measurement of the UE includes RSRP (Reference Signal Received Power), RSRQ (Reference Signal Received Quality), and the like, and the location of the local cell where the UE is located is known by measuring pilot Quality of the neighboring cell to prepare for cell handover or other actions, and the accuracy of the measurement directly relates to the accuracy of next handover or action.
It has been determined in 3GPP RAN conferencing that RSRP or RSRQ measurements are performed through neighbor cell downlink subframes, but it is not specified in which subframe the measurement is performed, and then a problem is how is the UE to know whether the neighbor cell subframe currently performing the measurement is a downlink subframe?
In the LTE system, an enhanced MBMS (Multimedia Broadcast/multicast service) is generally supported. SFN (Single Frequency Network), MBMS may use the same carrier with unicast (unicast) service; one carrier, that is, an SFN (Single Frequency Network) mode may also be used independently, and an SFN networking mode is generally adopted in the existing MBMS scheme. In short, the SFN networking mode means that each cell transmits or receives the same signal using the same frequency.
For a communication system adopting SFN networking, the existing LTE measurement of RSRP or RSRQ takes into account the situation of MBSFN (MBMS Single Frequency Network) subframes, and two extra bits are added in the cell broadcast channel to indicate measurement: one bit indicates that all neighbor cells are MBSFN subframes at the measurement time; another bit indicates that at the measurement time, all neighbor cells are not MBSFN subframes. The scheme is for the condition that the uplink and downlink time slot configurations of the cell and the adjacent cell are the same, and for the condition that the uplink and downlink time slot configurations of the cell and the adjacent cell are not consistent, no consideration is given.
However, in the LTE TDD system, for the case where the uplink and downlink timeslot allocation ratios of the local cell and the neighboring cell are not consistent, there may be a case where the local cell is a downlink subframe and the neighboring cell is an uplink subframe, and if the UE performs RSRP or RSRQ measurement on the neighboring cell in the downlink subframe of the local cell and the neighboring cell is an uplink subframe at this time, the measurement condition is not met, which causes a measurement error.
Disclosure of Invention
In view of this, the present invention provides a method, an apparatus, and a system for indicating timeslot configuration to solve the problem that the existing solution is not universal.
Therefore, the embodiment of the invention adopts the following technical scheme:
a method for indicating time slot configuration comprises the following steps: multiplexing MBSFN indication bits of a multimedia broadcast service unicast network; and broadcasting the multiplexed MBSFN indication bit on a broadcast channel, and informing User Equipment (UE) whether the uplink and downlink subframe allocation mode of the adjacent cell is consistent with the uplink and downlink subframe allocation mode of the cell.
When the multiplexed MBSFN indicator bit is 11, the uplink and downlink subframe allocation mode of the adjacent cell is inconsistent with the uplink and downlink subframe allocation mode of the cell.
And when the UE learns that the uplink and downlink subframe allocation mode of the adjacent cell is inconsistent with the uplink and downlink subframe allocation mode of the cell from the multiplexed MBSFN indicator bit, measuring all symbol pilot frequencies of the 0 th subframe and the 5 th subframe.
When the multiplexed MBSFN indication bit is 01, it indicates that all the neighboring cells are unicast frames under the condition that the uplink and downlink subframe allocation patterns of the cell and the neighboring cells are consistent.
And when the uplink and downlink subframe allocation modes of the cell are consistent with those of the adjacent cells and all the adjacent cells are unicast frames, the UE measures the pilot frequency of all symbols of all the subframes of the adjacent cells.
Wherein,
when the multiplexed MBSFN indicator bit is 10, the MBSFN subframe allocation modes of all the adjacent cells are the same under the condition that the uplink subframe allocation mode and the downlink subframe allocation mode of the cell are consistent with those of the adjacent cells and all the adjacent cells are not unicast frames;
when the multiplexed MBSFN indication bit is 00, it indicates that the MBSFN subframe allocation pattern of the local cell and the MBSFN subframe allocation pattern of the neighboring cell are not consistent under the condition that the uplink and downlink subframe allocation patterns of the local cell and the neighboring cell are consistent and all the neighboring cells are not unicast frames.
When knowing that the allocation modes of MBSFN subframes of all the adjacent cells are the same under the condition that the allocation modes of uplink and downlink subframes of the cell and the adjacent cells are consistent and all the adjacent cells are not unicast frames, UE measures the pilot frequency of downlink non-MBSFN subframes of the adjacent cells or measures the pilot frequency of unicast symbols of the MBSFN subframes of the adjacent cells;
when UE obtains that the uplink and downlink subframe allocation modes of the cell and the adjacent cell are consistent and all the adjacent cells are not unicast frames from multiplexed MBSFN indicator bits, the UE measures all symbol pilot frequencies of the 0 th subframe and the 5 th subframe of the adjacent cell or measures the pilot frequencies of the first two symbols of other subframes except the 0 th subframe and the 5 th subframe of the adjacent cell when the MBSFN subframe allocation mode of the cell and the MBSFN subframe allocation mode of the adjacent cell are inconsistent;
an apparatus for indicating timeslot configuration, the apparatus being located on a network side, comprising: the multiplexing unit is used for multiplexing the MBSFN indicator bit so as to inform whether the uplink and downlink subframe allocation mode of the UE adjacent cell is consistent with the uplink and downlink subframe allocation mode of the cell; and a sending unit, configured to send the multiplexed MBSFN indication bits to the UE.
A responding apparatus of time slot configuration, the apparatus is located at the user side, and comprises: the receiving unit is used for receiving the control information sent by the network side; and the analysis unit is used for analyzing the control information to obtain a multiplexed MBSFN indicator bit, and the MBSFN indicator bit indicates whether the uplink and downlink subframe allocation mode of the adjacent cell is consistent with the uplink and downlink subframe allocation mode of the cell.
The above response device further includes: and the measurement control unit is used for measuring all symbol pilot frequencies of the 0 th sub-frame and the 5 th sub-frame of the adjacent cell when the analysis unit determines that the uplink and downlink sub-frame distribution mode of the adjacent cell is inconsistent with the uplink and downlink sub-frame distribution mode of the cell.
A time slot configuration indication and response system comprising a first device at a network side and a second device at a user side, the first device comprising: the multiplexing unit is used for multiplexing the MBSFN indicator bit so as to inform whether the uplink and downlink subframe allocation mode of the UE adjacent cell is consistent with the uplink and downlink subframe allocation mode of the cell; a transmitting unit, configured to transmit the multiplexed MBSFN indication bits to the UE; the second device includes: the receiving unit is used for receiving the control information sent by the network side; and the analysis unit is used for analyzing the control information to obtain a multiplexed MBSFN indicator bit, and the MBSFN indicator bit indicates whether the uplink and downlink subframe allocation mode of the adjacent cell is consistent with the uplink and downlink subframe allocation mode of the cell.
The second apparatus further comprises: and the measurement control unit is used for measuring all symbol pilot frequencies of the 0 th sub-frame and the 5 th sub-frame of the adjacent cell when the analysis unit determines that the uplink and downlink sub-frame distribution mode of the adjacent cell is inconsistent with the uplink and downlink sub-frame distribution mode of the cell.
Therefore, the invention reuses the MBSFN indication bit originally existing in the broadcast control channel, does not need to add extra bit for indication, saves signaling overhead and is easier to realize.
In addition, more importantly, the existing scheme does not include the situation except the MBSFN subframe, that is, whether the adjacent cell is the downlink subframe or not is not indicated, which may cause the inaccuracy of the subsequent operation performed by the UE according to the indication.
The invention reuses MBSFN indicating bits originally existing in a broadcast control channel, does not need to add extra bits for indicating, saves signaling overhead, indicates whether the uplink and downlink subframe allocation mode of a UE adjacent cell is consistent with the uplink and downlink subframe allocation mode of the cell through the multiplexed MBSFN indicating bits, and provides reference for whether the UE performs measurement.
Drawings
Fig. 1 is a schematic diagram of a first type frame structure of LTE;
fig. 2 is a schematic diagram of a second type frame structure of LTE;
FIG. 3 is a schematic diagram of consistent uplink and downlink subframe configuration;
FIG. 4 is a flow chart of the method of the present invention;
FIG. 5 is a schematic diagram illustrating inconsistency of uplink and downlink subframe configurations;
FIG. 6 is a schematic diagram of the system of the present invention.
Detailed Description
First, a frame structure supported by the LTE system is introduced.
The LTE system supports two frame structures. The first frame structure is suitable for TDD (Time Division Duplex) and FDD (Frequency Division Duplex) systems, and as shown in fig. 1, the frame structure of the first frame structure is 10ms in length, and is composed of 20 Time slots, each Time slot is 0.5s in length, and each Time slot is marked as 0 to 19. Two consecutive slots are defined as one subframe, subframe i is composed of slots 2i and (2i +1), where i ═ 0, 1.. 9. For FDD systems, 10 subframes are available for both uplink and downlink every 10ms, since the uplink and downlink are separated in the frequency domain. For TDD systems, a total of 10 subframes are available for uplink and downlink every 10ms, where subframe 0 and subframe 5, and also DwPts, are always allocated for downlink transmission. The second type of frame structure is only applicable to TDD systems, and referring to fig. 2, the frame length of the wireless frame is also 10ms, each frame is divided into 2 half-frames of 5ms, and each half-frame is composed of 4 service time slots and a special time slot (downlink pilot, guard interval, and uplink pilot). The focus herein is discussed for LTE TDD systems.
In the TDD mode, the allocation of subframes is based on cells, and in order to avoid interference caused by inconsistent uplink and downlink of adjacent cells, adjacent cells of adjacent carriers are configured to have the same uplink and downlink timeslot proportion as much as possible, however, in an actual communication system, the situation that the uplink and downlink timeslot allocation of the cell and the adjacent cells are inconsistent still exists, which may affect RSRP and RSRQ measurement, and even cause a problem that RSRP and RSRQ measurement cannot be performed, which is specifically analyzed below.
Referring to fig. 3, a schematic diagram of uplink and downlink timeslot configurations of the present cell a and a neighboring cell B (which is only given by way of example and is not strictly described according to the subframe structure of the LTE system). It can be seen from the figure that downlink subframes, uplink subframes, downlink subframes and uplink subframes are respectively configured in the 1 st to 5 th time slots of the cell a, and downlink subframes, uplink subframes and downlink subframes are allocated in the 1 st to 5 th time slots of the neighboring cell B, if the UE of the cell a knows that the measurement needs to be performed on the neighboring cell B in the 4 th time slot from the control channel, although the cell a is the downlink subframe in the 4 th time slot, the neighboring cell B is the uplink subframe, and therefore accurate measurement cannot be performed, and accurate implementation of actions such as subsequent cell switching can be affected. Fig. 3 shows a case where the uplink and downlink subframe allocation pattern of the neighboring cell is inconsistent with the uplink and downlink subframe allocation pattern of the cell.
For the existing scheme of indicating whether the adjacent cell is the MBSFN subframe by additionally adding bits, the scheme is designed only for the MBSFN subframe, but is not applicable to whether the adjacent cell is the common downlink subframe, and the bit overhead is increased by additionally adding bits.
The scheme of the invention is that the MBSFN indicator bit transmitted in the downlink broadcast channel of the cell is utilized to multiplex the existing MBSFN indicator bit, thereby indicating whether the adjacent cell is a downlink subframe or various conditions of the MBSFN subframe, and providing reference for the measurement of the UE of the cell.
Referring to fig. 4, a flowchart of an indication method for timeslot configuration according to the present invention includes:
step 401: the eNodeB of the cell multiplexes MBSFN indication bits in a broadcast channel to indicate whether the uplink and downlink subframe allocation mode of the UE adjacent cell is consistent with the uplink and downlink subframe allocation mode of the cell, if so, the step 402 is executed, and if not, the step 407 is executed;
if the uplink and downlink time slot allocation of the cell and the adjacent cell is the same, it indicates that the uplink and downlink subframe allocation modes of the cell and the adjacent cell are consistent, otherwise, they are inconsistent.
Step 402: under the condition that the uplink and downlink subframe configuration modes of the neighboring cell and the cell are consistent, judging whether all subframes are unicast frames? If yes, go to step 403, otherwise go to step 404;
step 403: the UE may measure the pilots of all symbols of all subframes;
step 404: not all subframes are unicast frames, i.e. the subframes include MBSFN subframes, and on this basis, determine whether the MBSFN subframe patterns of the local cell and the neighboring cells are consistent? If yes, go to step 405, otherwise go to step 406;
step 405: the UE can measure the pilot frequency of all the subframes of the downlink non-MBSFN subframe, and can also measure the pilot frequency of the unicast symbol part of the MBSFN subframe;
step 406: the UE can measure all the pilot symbols of the 0 th sub-frame and the 5 th sub-frame, and can also measure the pilot symbols of the first two symbols of other sub-frames;
step 407: under the condition that the uplink and downlink subframe configurations of the cell and the adjacent cell are not consistent, the UE can only measure all symbol pilots of the 0 th subframe and the 5 th subframe.
As introduced above, the LTE system subframe structure is true for the 0 th subframe and the 5 th subframe as downlink subframes.
It should be noted that, the eNodeB and the UE need to agree on the meaning of the multiplexed MBSFN indication bits in advance, and the following table 1 is an example of the agreement:
TABLE 1
| Multiplexed MBSFN indicator bits | Means of |
| 11 | The uplink and downlink subframe configuration modes of the cell and the adjacent cell are inconsistent |
| 01 | The uplink and downlink subframe configuration modes of the cell and the adjacent cells are consistent, and all the adjacent cells are |
| 10 | The uplink and downlink subframe configuration modes of the cell are consistent with those of the adjacent cells, not all the adjacent cells are unicast frames, and the MBSFN subframe allocation modes of all the adjacent cells are the same |
| 00 | The uplink and downlink subframe configuration modes of the cell are consistent with those of the adjacent cells, not all the adjacent cells are unicast frames, and MBSFN subframe allocation modes of all the adjacent cells are different |
Those skilled in the art will appreciate that table 1 is given as an example only and that it is flexible in practical applications.
The UE may measure any downlink subframe in the cell.
When the multiplexed MBSFN indicator bit is 11, namely when the UE learns that the uplink and downlink subframe allocation mode of the adjacent cell is inconsistent with the uplink and downlink subframe allocation mode of the cell from the multiplexed MBSFN indicator bit, the UE can only measure all the symbol pilots of the 0 th subframe and the 5 th subframe at the moment.
For a schematic of the first case, see fig. 3.
When the multiplexed MBSFN indicator bit is 01, the method indicates that all the adjacent cells have no MBSFN sub-frames under the condition that the uplink and downlink sub-frame distribution modes of the cell and the adjacent cells are consistent, namely all the adjacent cells are unicast sub-frames, and at the moment, the UE can measure the pilot frequency of all symbols of all the sub-frames;
when the multiplexed MBSFN indicator bit is 10, the MBSFN subframe allocation modes of all the adjacent cells are the same under the condition that the uplink subframe allocation mode and the downlink subframe allocation mode of the cell are consistent with those of the adjacent cells, and not all the adjacent cells are unicast frames, and at the moment, the UE can measure the pilot frequency of all the subframes of the downlink non-MBSFN subframe and can also measure the pilot frequency of the unicast symbol part of the MBSFN subframe;
and fourthly, when the multiplexed MBSFN indication bit is 00, the MBSFN subframe allocation mode of the cell is inconsistent with the MBSFN subframe allocation mode of the adjacent cell under the condition that the uplink and downlink subframe allocation modes of the cell are consistent with each other and all the adjacent cells are not unicast frames. At this time, the UE may measure all the pilot symbols of the 0 th subframe and the 5 th subframe, or measure the pilot symbols of the first two symbols of other subframes;
for the above-mentioned two, three and four, it means that the uplink and downlink subframes of the cell and the neighboring cell are allocated consistently, see fig. 5, the cell a1 and the cell a2 are all configured with downlink subframes, uplink subframes, downlink subframes and uplink subframes, and for the second case, it means that both cells are not configured with MBSFN subframes; for the third case, the two cells are selected and configured to have the same downlink subframe as the MBSFN subframe, for example, both cell a1 and cell a2 select the 4 th downlink subframe as the MBSFN subframe; for the fourth case, the two cells select downlink subframes configured as MBSFN subframes to be different, for example, cell a1 configures the 1 st subframe as MBSFN subframe, and cell a2 configures the 4 th downlink subframe as MBSFN subframe.
It can be seen that, the present invention reuses the originally existing MBSFN indication bits in the broadcast control channel, and does not need to add extra bits for indication, thereby saving signaling overhead, and is easier to implement, and more importantly, the existing scheme does not include the situation except the MBSFN subframes, i.e. does not indicate whether the neighboring cells are downlink subframes, which may cause the following operations performed by the UE according to the indication to be inaccurate.
Fig. 6 is a schematic diagram of a system structure provided by the present invention.
Corresponding to the above method, the present invention further provides an indication apparatus 601 for timeslot configuration, which is located at the network side, and the specific form of the indication apparatus may be an eNodeB, a functional entity existing in the eNodeB, or an independent functional entity.
The indicating device 601 includes:
a multiplexing unit 6011, configured to multiplex the MBSFN indication bits, so as to inform the UE whether an uplink/downlink subframe allocation pattern of a neighboring cell is consistent with an uplink/downlink subframe allocation pattern of the cell;
a sending unit 6012, configured to send the multiplexed MBSFN indication bits to the UE.
Correspondingly, the present invention further provides a time slot configuration responding apparatus 602, which is located at the user side, and may be in the form of a UE, a functional entity existing in the UE.
The responding device 602 includes:
a receiving unit 6021, configured to receive the control information sent by the network side;
analyzing unit 6022, configured to analyze the control information to obtain a multiplexed MBSFN indication bit, where the MBSFN indication bit indicates whether an uplink and downlink subframe allocation pattern of the neighboring cell is consistent with an uplink and downlink subframe allocation pattern of the cell.
Preferably, the responding device 602 further includes:
a measurement control unit 6023, configured to measure only all symbol pilots of the 0 th subframe and the 5 th subframe when the analysis unit 6022 determines that the uplink and downlink subframe allocation pattern of the neighboring cell is inconsistent with the uplink and downlink subframe allocation pattern of the cell, and in addition, the measurement control unit 6023 further executes other related operations under other conditions, specifically referring to table 1 and analysis 1 to analysis r, which are not described herein again.
Meanwhile, the invention also provides a time slot configuration indication and response system, which comprises a first device positioned at a network side and a second device positioned at a user side, wherein the first device comprises: the multiplexing unit is used for multiplexing the MBSFN indicator bit so as to inform whether the uplink and downlink subframe allocation mode of the UE adjacent cell is consistent with the uplink and downlink subframe allocation mode of the cell; a transmitting unit, configured to transmit the multiplexed MBSFN indication bits to the UE; the second device includes: the receiving unit is used for receiving the control information sent by the network side; and the analysis unit is used for analyzing the control information to obtain a multiplexed MBSFN indicator bit, and the MBSFN indicator bit indicates whether the adjacent cell is a downlink subframe at the measurement time. Preferably, the second apparatus further includes a measurement control unit, configured to measure only pilot symbols of all the symbols of the 0 th subframe and the 5 th subframe when the analysis unit determines that the uplink and downlink subframe allocation pattern of the neighboring cell is inconsistent with the uplink and downlink subframe allocation pattern of the cell.
For details of the device and the system provided by the present invention, please refer to the method embodiment, which is not described herein again.
Therefore, the invention provides an indication method, a device and a system for inconsistent uplink and downlink time slot allocation of adjacent cells, and can indicate the inconsistent uplink time slot indication of the adjacent cells under the condition of not increasing bits, thereby solving the problem of errors of RSRP and RSRQ measurement generated when the uplink and downlink time slot allocation of the adjacent cells is inconsistent.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (12)
1. A method for indicating a timeslot configuration, comprising:
multiplexing MBSFN indication bits of a multimedia broadcast service unicast network;
and broadcasting the multiplexed MBSFN indication bit on a broadcast channel, and informing User Equipment (UE) whether the uplink and downlink subframe allocation mode of the adjacent cell is consistent with the uplink and downlink subframe allocation mode of the cell.
2. The method of claim 1, wherein when the multiplexed MBSFN indication bit is 11, it indicates that the uplink and downlink subframe allocation patterns of the neighboring cell are inconsistent with the uplink and downlink subframe allocation pattern of the local cell.
3. The method of claim 1 or 2, wherein when the UE knows from the multiplexed MBSFN indication bits that the uplink and downlink subframe allocation patterns of the neighboring cell are inconsistent with the uplink and downlink subframe allocation pattern of the cell, the UE performs measurement on all symbol pilots of the 0 th subframe and the 5 th subframe.
4. The method of claim 1,
when the multiplexed MBSFN indication bit is 01, it indicates that all the neighboring cells are unicast frames under the condition that the uplink and downlink subframe allocation modes of the cell and the neighboring cells are consistent.
5. The method according to claim 1 or 4,
and when the uplink and downlink subframe allocation modes of the cell are consistent with those of the adjacent cells and all the adjacent cells are unicast frames, the UE measures the pilot frequency of all symbols of all the subframes of the adjacent cells.
6. The method of claim 1,
when the multiplexed MBSFN indicator bit is 10, the MBSFN subframe allocation modes of all the adjacent cells are the same under the condition that the uplink subframe allocation mode and the downlink subframe allocation mode of the cell are consistent with those of the adjacent cells and all the adjacent cells are not unicast frames;
when the multiplexed MBSFN indication bit is 00, it indicates that the MBSFN subframe allocation pattern of the local cell and the MBSFN subframe allocation pattern of the neighboring cell are not consistent under the condition that the uplink and downlink subframe allocation patterns of the local cell and the neighboring cell are consistent and all the neighboring cells are not unicast frames.
7. The method according to claim 1 or 6,
when knowing that the allocation modes of MBSFN subframes of all the adjacent cells are the same under the condition that the allocation modes of uplink and downlink subframes of the cell and the adjacent cells are consistent and all the adjacent cells are not unicast frames, UE measures the pilot frequency of downlink non-MBSFN subframes of the adjacent cells or measures the pilot frequency of unicast symbols of the MBSFN subframes of the adjacent cells;
when the UE obtains that the uplink and downlink subframe allocation modes of the cell and the adjacent cell are consistent and all the adjacent cells are not unicast frames from the multiplexed MBSFN indicator bits, the UE measures all the pilot frequencies of the symbols of the 0 th subframe and the 5 th subframe of the adjacent cell or measures the pilot frequencies of the first two symbols of other subframes except the 0 th subframe and the 5 th subframe of the adjacent cell when the MBSFN subframe allocation mode of the cell and the MBSFN subframe allocation mode of the adjacent cell are inconsistent.
8. An apparatus for indicating timeslot configuration, the apparatus being located on a network side, the apparatus comprising:
the multiplexing unit is used for multiplexing the MBSFN indicator bit so as to inform whether the uplink and downlink subframe allocation mode of the UE adjacent cell is consistent with the uplink and downlink subframe allocation mode of the cell;
and a sending unit, configured to send the multiplexed MBSFN indication bits to the UE.
9. A response apparatus for time slot configuration, the apparatus being located at a user side, comprising:
the receiving unit is used for receiving the control information sent by the network side;
and the analysis unit is used for analyzing the control information to obtain a multiplexed MBSFN indicator bit, and the MBSFN indicator bit indicates whether the uplink and downlink subframe allocation mode of the adjacent cell is consistent with the uplink and downlink subframe allocation mode of the cell.
10. The apparatus of claim 9, further comprising:
and the measurement control unit is used for measuring all symbol pilot frequencies of the 0 th sub-frame and the 5 th sub-frame of the adjacent cell when the analysis unit determines that the uplink and downlink sub-frame distribution mode of the adjacent cell is inconsistent with the uplink and downlink sub-frame distribution mode of the cell.
11. An indication and response system of time slot configuration, comprising a first device located at a network side and a second device located at a user side, wherein the first device comprises:
the multiplexing unit is used for multiplexing the MBSFN indicator bit so as to inform whether the uplink and downlink subframe allocation mode of the UE adjacent cell is consistent with the uplink and downlink subframe allocation mode of the cell;
a transmitting unit, configured to transmit the multiplexed MBSFN indication bits to the UE;
the second device includes:
the receiving unit is used for receiving the control information sent by the network side;
and the analysis unit is used for analyzing the control information to obtain a multiplexed MBSFN indicator bit, and the MBSFN indicator bit indicates whether the uplink and downlink subframe allocation mode of the adjacent cell is consistent with the uplink and downlink subframe allocation mode of the cell.
12. The system of claim 11, wherein the second means further comprises: and the measurement control unit is used for measuring all symbol pilot frequencies of the 0 th sub-frame and the 5 th sub-frame of the adjacent cell when the analysis unit determines that the uplink and downlink sub-frame distribution mode of the adjacent cell is inconsistent with the uplink and downlink sub-frame distribution mode of the cell.
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| CN102118690B (en) * | 2009-12-31 | 2014-01-22 | 华为技术有限公司 | Method and device for carrying out measurement on MBSFN (Multicast/Broadcast Single-frequency Network) cells |
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