CN110858795A

CN110858795A - Frame structure configuration method, network side equipment and user equipment

Info

Publication number: CN110858795A
Application number: CN201810961996.0A
Authority: CN
Inventors: 曹丽芳; 江天明; 邓伟; 高有军
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Priority date: 2018-08-22
Filing date: 2018-08-22
Publication date: 2020-03-03
Anticipated expiration: 2038-08-22
Also published as: CN110858795B

Abstract

The invention provides a frame structure configuration method, network side equipment and user equipment, wherein the method applied to the network side equipment comprises the following steps: broadcasting a network information block SIB1 message, wherein the network information block SIB1 message includes a preset identifier for indexing in a pre-stored frame structure table, or indicates the number of downlink timeslots added at the end of a downlink-to-uplink switching period; the frame structure table comprises a new air interface technology NR frame structure which is aligned with a frame head of a frame structure adopted by a time division long term evolution TD-LTE network and is aligned up and down, and a preset identifier corresponding to the NR frame structure; the number of downlink timeslots added at the end of the downlink-to-uplink switching period is used for configuring an NR frame structure aligned with a frame header of a frame structure adopted by the TD-LTE network and aligned with the uplink and the downlink. Therefore, the scheme of the invention solves the problems of frame header offset or signaling overhead increase caused by the alignment of uplink and downlink time slots of NR and LTE when the NR is deployed in the same frequency band of the LTE.

Description

Frame structure configuration method, network side equipment and user equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a frame structure configuration method, a network side device, and a user equipment.

Background

Different operators share the B41 frequency band, a large number of TD-LTE devices are deployed in the existing network, and when the frequency band is simultaneously deployed with NR, the design of a frame structure needs to be considered to avoid mutual interference between the same-frequency different networks.

Wherein, according to the protocol, the supported cell bandwidth is maximum 50MHz when the subcarrier spacing is 15KHz, and the supported cell bandwidth is maximum 100MHz when the subcarrier spacing is 30KHz or 60 KHz. Wherein, when the carrier spacing is 60KHz, the performance of resisting time delay expansion is poor, so that the sub-carrier spacing of 2.6GHz deployment NR preferentially considers 30 KHz.

In addition, 3GPP specifies that the uplink and downlink switching period of NR can be 0.5ms/1ms/2ms/2.5ms/5ms/10ms when the NR network subcarrier spacing is 30KHz, and supports some combined dual periods. Wherein, uplink and downlink resource allocation in one uplink and downlink switching period, the cell level supports the following three conditions:

the first method comprises the following steps: all are downlink time slots;

and the second method comprises the following steps: all are uplink time slots;

and the third is that: the following acts start, end for uplink, and only one point for uplink and downlink transition.

In addition, in order to coexist with the same-frequency TD-LTE, the NR slot ratio can only be kept consistent with the D frequency band, and the uplink and downlink are strictly aligned, otherwise, resource waste or mutual interference is caused. The D-band current frame structure is as follows: DSUDD, the period is 5 milliseconds, and in order to be strictly aligned with the uplink and the downlink of a D-band frame structure, the NR frame structure has the following three configuration modes:

configuring a first step: under the interval of 30KHz sub-carrier, DDDDDSUU is configured, and the period is 5 ms.

In order to strictly ensure the uplink and downlink alignment with the current frame structure of the D band, consider that the current network has deployed a TDD network in a large scale, and the difficulty in adjusting the frame header is high, so NR has a frame header offset of 2ms (as shown in fig. 1). However, the frame header offset may not be aligned with other frequency bands (e.g., 4.9GHz), which may result in carrier aggregation between frequency bands not being performed.

Configuring a second step: under the interval of 30KHz sub-carrier, DDSUU + DDDDD is configured, and the period is two, wherein each period is 2.5 ms.

As analyzed above, NR has a frame header offset of 0.5ms (as shown in fig. 2), and there may still be frame header misalignment with other frequency bands (e.g. 4.9GHz), which results in that inter-band carrier aggregation cannot be performed.

The configuration is three: at the sub-carrier interval of 30KHz, cell level configuration DDDXXXXXX is performed first, (wherein X represents an unknown time slot), and then user level configuration 7X are performed as SUUDDDD. Although there is no frame header offset (as shown in fig. 3), the frame structure configured at the user level increases RRC reconfiguration signaling overhead, which increases as the number of users increases.

From the above, when the frequency band (for example, 2.6GHz) in which the TD-LTE is deployed in the existing network is deployed with NR at the same time, to avoid mutual interference between networks, the timeslot ratio of NR needs to be strictly aligned with the TD-LTE. However, under the current frame structure configuration principle, the strict alignment of the uplink and downlink timeslots and LTE inevitably brings a certain frame header offset, which may cause the phenomenon that carrier aggregation with certain frequency bands cannot be performed, or increase signaling overhead.

Disclosure of Invention

The embodiment of the invention provides a frame structure configuration method, network side equipment and user equipment, aiming at solving the problems of frame header offset or signaling overhead increase caused by the alignment of NR and LTE uplink and downlink time slots when the NR is deployed in the LTE common frequency band.

The embodiment of the invention provides a frame structure configuration method, which is applied to network side equipment and comprises the following steps:

broadcasting a network information block SIB1 message, wherein the network information block SIB1 message includes a preset identifier for indexing in a pre-stored frame structure table, or indicates the number of downlink timeslots added at the end of a downlink-to-uplink switching period;

the frame structure table comprises a new air interface technology NR frame structure which is aligned with a frame header of a frame structure adopted by a time division long term evolution TD-LTE network and is aligned in an up-down mode, and a preset identification corresponding to the NR frame structure;

the number of the downlink time slots added at the end of the downlink-to-uplink switching period is used for configuring an NR frame structure which is aligned with a frame header of a frame structure adopted by the TD-LTE network and is aligned with the uplink and the downlink.

Preferably, a frame of the first NR frame structure aligned with a frame header of the first TD-LTE frame structure adopted by the TD-LTE network, and the first NR frame structure aligned in uplink and downlink includes: two continuous downlink time slots, two continuous special time slots, six continuous uplink time slots, two continuous downlink time slots, two continuous special time slots and six continuous uplink time slots which are sequentially arranged;

wherein one frame in the first TD-LTE frame structure comprises: the system comprises a downlink subframe, a special subframe, three continuous uplink subframes, a downlink subframe, a special subframe and three continuous uplink subframes which are sequentially arranged.

Preferably, a frame of the second NR frame structure aligned with a frame header of the second TD-LTE frame structure adopted by the TD-LTE network, and the frame of the second NR frame structure aligned in uplink and downlink includes: two continuous downlink time slots, two continuous special time slots, four continuous uplink time slots, four continuous downlink time slots, two continuous special time slots, four continuous uplink time slots and two continuous downlink time slots which are sequentially arranged;

wherein a frame of the second TD-LTE frame structure comprises: the system comprises a downlink subframe, a special subframe, two continuous uplink subframes, two continuous downlink subframes, a special subframe, two continuous uplink subframes and a downlink subframe which are sequentially arranged.

Preferably, a frame of a third NR frame structure that is aligned with a frame header of a third TD-LTE frame structure adopted by the TD-LTE network and aligned in an uplink and a downlink includes: two continuous downlink time slots, two continuous special time slots, two continuous uplink time slots, six continuous downlink time slots, two continuous special time slots, two continuous uplink time slots and four continuous downlink time slots which are sequentially arranged;

wherein a frame of the third TD-LTE frame structure comprises: the system comprises a downlink subframe, a special subframe, an uplink subframe, three continuous downlink subframes, a special subframe, an uplink subframe and two continuous downlink subframes which are sequentially arranged.

Preferably, a frame of a fourth NR frame structure that is aligned with a frame header of a fourth TD-LTE frame structure adopted by the TD-LTE network and aligned in an uplink and a downlink includes: two continuous downlink time slots, two continuous special time slots, six continuous uplink time slots and ten continuous downlink time slots which are sequentially arranged;

wherein a frame of the fourth TD-LTE frame structure comprises: the system comprises a downlink subframe, a special subframe, three continuous uplink subframes and five continuous downlink subframes which are sequentially arranged.

Preferably, a frame header of a fifth TD-LTE frame structure adopted by the TD-LTE network is aligned, and a frame of the fifth NR frame structure that is aligned in uplink and downlink includes: two continuous downlink time slots, two continuous special time slots, four continuous uplink time slots and twelve continuous downlink time slots which are sequentially arranged;

wherein a frame of the fifth TD-LTE frame structure comprises: the system comprises a downlink subframe, a special subframe, two continuous uplink subframes and six continuous downlink subframes which are sequentially arranged.

Preferably, a frame of a sixth NR frame structure that is aligned with a frame header of a sixth TD-LTE frame structure adopted by the TD-LTE network and aligned in an uplink and a downlink includes: two continuous downlink time slots, two continuous special time slots, two continuous uplink time slots and fourteen continuous downlink time slots which are sequentially arranged;

wherein a frame of the sixth TD-LTE frame structure comprises: the system comprises a downlink subframe, a special subframe, an uplink subframe and seven continuous downlink subframes which are sequentially arranged.

Preferably, a frame of a seventh NR frame structure that is aligned with a frame header of a seventh TD-LTE frame structure adopted by the TD-LTE network and aligned in an uplink and a downlink includes: two continuous downlink time slots, two continuous special time slots, six continuous uplink time slots, two continuous downlink time slots, two continuous special time slots, four continuous uplink time slots and two continuous downlink time slots which are sequentially arranged;

wherein a frame of the seventh TD-LTE frame structure comprises: the system comprises a downlink subframe, a special subframe, three continuous uplink subframes, a downlink subframe, a special subframe, two continuous uplink subframes and a downlink subframe which are sequentially arranged.

Preferably, when the network information block SIB1 message includes a message indicating the number of downlink slots added at the end of a downlink-to-uplink switching period, the network information block SIB1 message further includes: at least one switching period from downlink to uplink, the number of consecutive uplink time slots which are located before and adjacent to the added downlink time slot in each switching period, and the number of consecutive downlink time slots at the beginning of each switching period.

The embodiment of the invention also provides a frame structure configuration method, which is applied to user equipment and comprises the following steps:

receiving network information block SIB1 information broadcasted by a network side device, wherein the network information block SIB1 information includes a preset identifier or indicates the number of downlink time slots added at the end of a downlink-to-uplink switching period;

and according to the preset identification, indexing an NR frame structure which corresponds to the preset identification and is aligned with a frame header of a frame structure adopted by the TD-LTE network and aligned with the uplink and the downlink in a frame structure table stored in advance, or determining the NR frame structure which is aligned with the frame header of the frame structure adopted by the TD-LTE network and aligned with the uplink and the downlink according to the number of downlink time slots added at the end of a switching period from the downlink to the uplink.

Preferably, when the network information block SIB1 message includes a message indicating the number of downlink slots added at the end of a downlink-to-uplink switching period, the network information block SIB1 message further includes: at least one switching period from downlink to uplink, the number of continuous uplink time slots which are positioned before the added downlink time slot and are adjacent to the added downlink time slot in each switching period, and the number of continuous downlink time slots at the beginning of each switching period;

the step of determining, according to the number of downlink timeslots added at the end of the downlink to uplink switching period, an NR frame structure aligned with a frame header of a frame structure adopted by the TD-LTE network and aligned with the uplink and the downlink includes:

and determining an NR frame structure which is aligned with a frame header of a frame structure adopted by the TD-LTE network and is aligned with the uplink and the downlink according to the at least one switching period from the downlink to the uplink, the number of continuous uplink time slots which are positioned in front of the added downlink time slot and are adjacent to the added downlink time slot in each switching period, the number of continuous downlink time slots at the beginning of each switching period and the number of downlink time slots added at the end of the switching period from the downlink to the uplink.

The embodiment of the invention also provides a network side device, which comprises a processor and a transceiver, wherein the transceiver is used for broadcasting a network information block SIB1 message, and the network information block SIB1 message comprises a preset identifier used for indexing in a pre-stored frame structure table, or indicates the number of downlink timeslots added at the end of a downlink-to-uplink switching period;

The embodiment of the invention also provides user equipment, which comprises a processor and a transceiver, wherein the transceiver is used for receiving network information block SIB1 information broadcasted by network side equipment, and the network information block SIB1 information comprises a preset identifier or indicates the number of downlink timeslots added at the end of a downlink-to-uplink switching period;

the processor is configured to index, according to the preset identifier, an NR frame structure that corresponds to the preset identifier and is aligned with a frame header of a frame structure adopted by the time division long term evolution TD-LTE network and is aligned in uplink and downlink in a frame structure table stored in advance, or determine, according to the number of downlink time slots added at the end of the downlink-to-uplink switching period, an NR frame structure that is aligned with the frame header of the frame structure adopted by the TD-LTE network and is aligned in uplink and downlink.

the processor determines, according to the number of downlink timeslots added at the end of the downlink-to-uplink switching period, frame header alignment with a frame structure adopted by the TD-LTE network, and when the uplink and downlink aligned NR frame structures are specifically used for:

The embodiment of the invention also provides network side equipment, which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor; the processor implements the frame structure configuration method applied to the network side device as described above when executing the program.

Embodiments of the present invention also provide a user equipment comprising a memory, a processor, and a computer program stored on the memory and executable on the processor; the processor, when executing the program, implements the frame structure configuration method as applied to the user equipment.

Embodiments of the present invention also provide a computer-readable storage medium, on which a computer program is stored, which when executed by a processor implements the steps in the frame structure configuration method applied to a network side device as described above, or implements the steps in the frame structure configuration method applied to a user equipment as described above.

The embodiment of the invention has the beneficial effects that:

according to the embodiment of the invention, the preset identifier for indexing in the pre-stored frame structure table is added in the SIB1 message broadcast by the network side equipment, or the number of downlink time slots added at the end of a switching period from downlink to uplink is indicated, so that the frame header alignment of the frame structure adopted by the TD-LTE network and the frame header alignment of the uplink and the downlink are configured, and the problem of frame header offset caused by the alignment of the uplink and the downlink time slots of NR and LTE when NR is deployed in the same frequency band of LTE is solved. And the user-level frame structure can be configured directly according to the content added in the SIB1 message, and compared with the prior art in which the signaling is first sent to perform cell-level configuration and then sent to perform user-level configuration, the embodiment of the present invention reduces the signaling overhead in the frame structure configuration process.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.

FIG. 1 is a diagram illustrating a TD-LTE frame structure and an NR frame structure in uplink and downlink alignment but with frame header offset in the prior art;

FIG. 2 is a second schematic diagram of the TD-LTE frame structure and the NR frame structure being aligned up and down but with frame head offset in the prior art;

FIG. 3 is a diagram illustrating the prior art TD-LTE frame structure and NR frame structure being aligned in the uplink and downlink and having no offset frame header;

fig. 4 is a flowchart illustrating a frame configuration method applied to a network side device according to an embodiment of the present invention;

fig. 5 is a flowchart illustrating a frame structure configuration method applied to a ue in an embodiment of the present invention;

fig. 6 shows one of the block diagrams of the network side device according to the embodiment of the present invention;

fig. 7 shows one of the structural block diagrams of the user equipment in the embodiment of the present invention;

fig. 8 shows a second block diagram of the network device according to the embodiment of the invention;

fig. 9 shows a second block diagram of the ue in the embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

An embodiment of the present invention provides a frame structure configuration method, as shown in fig. 4, the method includes:

step 401: the network information block SIB1 message is broadcast.

Wherein, the network information block SIB1 message includes a preset identifier for indexing in a frame structure table stored in advance, or indicates the number of downlink timeslots added at the end of a downlink-to-uplink switching period;

the frame structure table comprises a new air interface technology NR frame structure which is aligned with a frame head of a frame structure adopted by a time division long term evolution TD-LTE network and is aligned in an up-down mode, and a preset identification corresponding to the NR frame structure;

The NR frame structure is a frame structure adopted by the NR network.

That is, in the embodiment of the present invention, the frame header of the frame structure adopted by the TD-LTE network is predetermined to be aligned, and the NR frame structures aligned in the uplink and the downlink are stored in the frame structure table, and the preset identifier is adopted in the frame structure table to identify different NR frame structures, so that when the network side device configures an NR frame structure for the user equipment, the preset identifier is directly added to the SIB1 message and broadcasted, and then after the user equipment receives the SIB1 message, the preset identifier is analyzed from the SIB1 message and indexed in the frame structure table according to the preset identifier, and finally, the NR frame structure adopted by the user equipment for uplink and downlink transmission can be determined.

Alternatively, the first and second electrodes may be,

in the embodiment of the present invention, the SIB1 message may further include an indicator indicating the number of downlink timeslots added at the end of a downlink-to-uplink handover period, so as to configure an NR frame structure that is aligned with a frame header of a frame structure used by the TD-LTE network and is aligned with uplink and downlink.

The switching period from the downlink to the uplink of the NR is 0.5ms/1ms/2ms/2.5ms/5ms/10ms, and other switching periods cannot be adopted. The embodiment of the invention can add a certain number of downlink time slots at the end of the switching period from downlink to uplink, thereby ensuring that the NR frame structure is aligned with the frame head of the frame structure adopted by the TD-LTE network, and meeting the requirement on the switching period under the condition of the alignment of the uplink and the downlink, thereby utilizing the limited switching period to configure more various NR frame structures and increasing the configuration flexibility of the frame structure.

Further, when the network information block SIB1 message includes a message indicating the number of downlink slots added at the end of a downlink-to-uplink switching period, the network information block SIB1 message further includes: at least one switching period from downlink to uplink, the number of consecutive uplink time slots which are located before and adjacent to the added downlink time slot in each switching period, and the number of consecutive downlink time slots at the beginning of each switching period.

For example, if the SIB1 message includes a first switching period of 5ms, the number of downlink timeslots added by the first switching period at the end is 4, the number of consecutive uplink timeslots located before and adjacent to the added downlink timeslot at the end is 2, and the number of consecutive downlink timeslots at the beginning of the first switching period is 2, then according to the above information included in the SIB1, it can be determined that the half frame of the NR frame structure is: DDSSUUDDDD. (where D denotes a downlink timeslot, S denotes a special timeslot, and U denotes an uplink timeslot.) where there is a special timeslot between the default downlink timeslot and the uplink timeslot.

Or, for example, if the SIB1 message includes a first switching period of 5ms, a second switching period of 5ms, the number of downlink timeslots added at the end of the first switching period is 0, the number of consecutive uplink timeslots located before and adjacent to the added downlink timeslot is 6, and the number of consecutive downlink timeslots at the beginning of the first switching period is 2, the number of downlink timeslots added at the end of the second switching period is 2, the number of consecutive uplink timeslots located before and adjacent to the added downlink timeslot is 4, and the number of consecutive downlink timeslots at the beginning of the first switching period is 2, then it may be determined that one frame of the NR frame structure is, according to the information included in the SIB 1: DDSSUUUUUU (5ms) + DDSSUUUUDD (5 ms). And a special time slot is arranged between the default downlink time slot and the uplink time slot.

Therefore, as can be seen from the above description, in the embodiment of the present invention, by adding a preset identifier for indexing in a frame structure table stored in advance to an SIB1 message broadcast by a network side device, or indicating the number of downlink timeslots added at the end of a downlink to uplink switching period, an NR frame structure that is aligned with a frame header of a frame structure adopted by a TD-LTE network and is aligned with the uplink and the downlink is configured, so that the problem of frame header offset caused by alignment of the NR and the LTE uplink timeslots when NRs are deployed in the LTE co-band is solved, and a user-level frame structure can be configured directly according to the content added in the SIB1 message.

Namely, a frame of the first TD-LTE frame structure is: DSUUDSUUU. And aligning the frame header of the first TD-LTE frame structure, wherein one frame of the first NR frame structure with the uplink and downlink alignment is as follows: DDSSUUUUUUDDSSUUUUUU.

It should be noted that D in the TD-LTE frame structure represents a downlink subframe with a duration of 1ms, U represents an uplink subframe with a duration of 1ms, and S represents a special subframe with a duration of 1 ms. D in the NR frame structure represents a downlink slot, the duration is 0.5ms, U represents an uplink slot, the duration is 0.5ms, and S represents a special slot, the duration is 0.5 ms.

Namely, one frame of the second TD-LTE frame structure is: DSUUDDSUDSUD. And aligning the frame header of a second TD-LTE frame structure, wherein one frame of the second NR frame structure with the uplink and downlink alignment is as follows: ddssuuuuddddssuudd.

Namely, one frame of the third TD-LTE frame structure is: DSUDDDSUDD. And aligning the frame header of a third TD-LTE frame structure, wherein one frame of the third NR frame structure with the uplink and downlink alignment is as follows: ddssuuddddddddssuudddd.

Namely, one frame of the fourth TD-LTE frame structure is: DSUUDDDDD. And aligning the frame header of a fourth TD-LTE frame structure, wherein a frame of the fourth NR frame structure with the uplink and downlink alignment is as follows: DDSSUUUUUUUUUDDDDDDDDDDD.

Namely, one frame of the fifth TD-LTE frame structure is: DSUUDDDDD. And aligning the frame header of a fifth TD-LTE frame structure, wherein a frame of a fifth NR frame structure with the vertically aligned frame header is as follows: DDSSUUUUUUDDDDDDDDDDDDDDD.

Namely, one frame of the sixth TD-LTE frame structure is: DSUDDDDD. And aligning the frame header of a sixth TD-LTE frame structure, wherein a frame of the sixth NR frame structure with the uplink and downlink alignment is as follows: DDSSUUDDDDDDDDDDDDDDD.

Namely, one frame of the seventh TD-LTE frame structure is: DSUUDSUUD. And aligning the frame header of a seventh TD-LTE frame structure, wherein a frame of a fifth NR frame structure with the uplink and downlink alignment is as follows: DDSSUUUUUUUUUUDDDSSUUUUDD.

As can be seen from the above description, the frame structure table pre-stored in the embodiment of the present invention can be as shown in table 1.

Table 1NR frame structure table

It should be noted that, for the specific configuration of the special timeslot in the NR frame structure configured in the embodiment of the present invention, the method in the prior art may be adopted. For example, in programming, configuration may be performed along with two parameters, nrofDownlinkSymbols and nrofUplinkSymbols.

An embodiment of the present invention further provides a frame structure configuration method, which is applied to a user equipment, and as shown in fig. 5, the method includes:

step 501: receiving the information of the network information block SIB1 broadcasted by the network side device.

Wherein, the network information block SIB1 message includes a preset identifier, or indicates the number of downlink timeslots added at the end of a downlink-to-uplink switching period.

Step 502: and according to the preset identification, indexing an NR frame structure which corresponds to the preset identification and is aligned with a frame header of a frame structure adopted by the TD-LTE network and aligned with the uplink and the downlink in a frame structure table stored in advance, or determining the NR frame structure which is aligned with the frame header of the frame structure adopted by the TD-LTE network and aligned with the uplink and the downlink according to the number of downlink time slots added at the end of a switching period from the downlink to the uplink.

The frame structure table comprises a new air interface technology NR frame structure which is aligned with a frame head of a frame structure adopted by a time division long term evolution TD-LTE network and is aligned in an up-down mode, and a preset identification corresponding to the NR frame structure.

That is, when the SIB1 message received in step 501 includes the preset identifier for indexing in the frame structure table stored in advance, step 502 specifically includes: and according to the preset identifier, indexing an NR frame structure corresponding to the preset identifier in the frame structure table.

When the SIB1 message received in step 501 includes a number indicating a downlink timeslot added at the end of a downlink to uplink switching period, step 502 specifically includes: and determining an NR frame structure which is aligned with a frame header of a frame structure adopted by the time division long term evolution TD-LTE network and is aligned with the uplink and the downlink according to the number of the downlink time slots added at the end of the switching period from the downlink to the uplink.

As can be seen from the above description, in the embodiment of the present invention, the NR frame structures that are aligned with the frame headers of the frame structure used by the TD-LTE network and are aligned in the uplink and downlink are predetermined and stored in the frame structure table, and the preset identifier is used to identify different NR frame structures in the frame structure table, so that when the network side device configures an NR frame structure for the user equipment, the preset identifier is directly added to the SIB1 message and broadcast, and then after the user equipment receives the SIB1 message, the preset identifier is analyzed from the SIB1 message, and the index is performed in the frame structure table according to the preset identifier, and finally, the NR frame structure used for uplink and downlink transmission by the user equipment can be determined.

Alternatively, the first and second electrodes may be,

Further, when the network information block SIB1 message includes a message indicating the number of downlink slots added at the end of a downlink-to-uplink switching period, the network information block SIB1 message further includes: at least one switching period from downlink to uplink, the number of continuous uplink time slots which are positioned before the added downlink time slot and are adjacent to the added downlink time slot in each switching period, and the number of continuous downlink time slots at the beginning of each switching period;

Therefore, as can be seen from the above description, in the embodiment of the present invention, by adding a preset identifier for indexing in a frame structure table stored in advance to an SIB1 message broadcast by a network side device, or indicating the number of downlink timeslots added at the end of a downlink to uplink switching period, a frame header alignment of a frame structure adopted by a TD-LTE network is configured, and an NR frame structure aligned in uplink and downlink is configured, so that the problem of frame header offset caused by alignment of NR and LTE uplink and downlink timeslots when NRs are deployed in the same LTE frequency band is solved. And the user-level frame structure can be configured directly according to the content added in the SIB1 message, and compared with the prior art in which the signaling is first sent to perform cell-level configuration and then sent to perform user-level configuration, the embodiment of the present invention reduces the signaling overhead in the frame structure configuration process.

It should be noted that, for the specific configuration of the special timeslot in the NR frame structure configured in the embodiment of the present invention, the method in the prior art may be adopted. For example, in programming, the configuration along with the special time slot S may be configured along with two parameters of nrofDownlinkSymbols and nrofUplinkSymbols.

An embodiment of the present invention further provides a network-side device, as shown in fig. 6, the network-side device 600 includes a processor 601 and a transceiver 602:

wherein, the transceiver 602 is configured to broadcast a network information block SIB1 message, where the network information block SIB1 message includes a preset identifier for indexing in a pre-stored frame structure table, or indicates a number of downlink timeslots added at the end of a downlink to uplink switching period;

An embodiment of the present invention further provides a user equipment, as shown in fig. 7, the user equipment 700 includes a processor 702 and a transceiver 701; the transceiver 701 is configured to receive network information block SIB1 information broadcasted by a network side device, where the network information block SIB1 information includes a preset identifier used for indexing in a frame structure table stored in advance, or indicates a number of downlink timeslots added at an end of a downlink-to-uplink switching period, where the frame structure table includes an NR frame structure that is aligned with a frame header of a frame structure adopted by a time division long term evolution (TD-LTE) network and is aligned with the uplink and the downlink, and a preset identifier corresponding to the NR frame structure;

the processor 702 is configured to index, according to the preset identifier, an NR frame structure corresponding to the preset identifier in the frame structure table, or determine, according to the number of downlink timeslots added at the end of the downlink to uplink switching period, an NR frame structure that is aligned with a frame header of a frame structure used by the time division long term evolution TD-LTE network and is aligned with the uplink and the downlink.

the processor 702 determines, according to the number of downlink timeslots added at the end of the downlink-to-uplink switching period, frame header alignment with a frame structure adopted by the time division long term evolution TD-LTE network, and when the uplink and downlink aligned NR frame structures are specifically used for:

An embodiment of the present invention further provides a network-side device, as shown in fig. 8, where the network-side device includes a memory 820, a processor 810, and a computer program stored in the memory 820 and operable on the processor 810, and the processor 810 implements the frame structure configuration method when executing the computer program. As shown in fig. 8, the network side device further includes a transceiver 830 and a bus interface 840.

Wherein, the processor 810 is used for reading the program in the memory 820;

a transceiver 830 for receiving and transmitting data under the control of the processor 810.

In addition, bus interface 840 may include any number of interconnected buses and bridges, with various circuits embodying one or more processors, represented by processor 810, and memory, represented by memory. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 830 may be a number of elements, including a transmitter and a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 810 is responsible for managing the bus architecture and general processing, and the memory may store data used by the processor in performing operations.

Specifically, the processor 810 is configured to control the transceiver 830 to broadcast a network information block SIB1 message, where the network information block SIB1 message includes a preset identifier for indexing in a pre-stored frame structure table, or indicates a number of downlink timeslots added at the end of a downlink-to-uplink switching period; the frame structure table comprises a new air interface technology NR frame structure which is aligned with a frame header of a frame structure adopted by a time division long term evolution TD-LTE network and is aligned in an up-down mode, and a preset identification corresponding to the NR frame structure; the number of the downlink time slots added at the end of the downlink-to-uplink switching period is used for configuring an NR frame structure which is aligned with a frame header of a frame structure adopted by the TD-LTE network and is aligned with the uplink and the downlink.

An embodiment of the present invention further provides a user equipment, where the user equipment may be a terminal, as shown in fig. 9, the user equipment includes a memory 920, a processor 910, and a computer program stored in the memory 920 and operable on the processor 910; the processor 910, when executing the program, implements the frame structure configuration method described above. In addition, the user equipment further comprises a transceiver 930.

The processor 910 is configured to control the transceiver 930 to receive network information block SIB1 information broadcasted by a network side device, where the network information block SIB1 message includes a preset identifier or indicates a number of downlink timeslots added at an end of a downlink to uplink switching period;

the processor 910 is further configured to index, according to the preset identifier, an NR frame structure that corresponds to the preset identifier and is aligned with a frame header of a frame structure adopted by the time division long term evolution TD-LTE network and is aligned in an uplink and a downlink in a frame structure table stored in advance, or determine, according to the number of downlink timeslots added at the end of the downlink to uplink switching period, an NR frame structure that is aligned with the frame header of the frame structure adopted by the TD-LTE network and is aligned in the uplink and the downlink.

In addition, the terminal further includes a user interface 940 connected to a bus interface 950 providing an interface. In FIG. 9, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 910, and various circuits, represented by memory 920, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The transceiver 930 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. The processor 910 is responsible for managing the bus architecture and general processing, and the memory 920 may store data used by the processor in performing operations.

The processor 910 is responsible for managing the bus architecture and general processing, and the memory 920 may store data used by the processor in performing operations.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A frame structure configuration method is applied to network side equipment, and is characterized in that the method comprises the following steps:

2. The method of claim 1, wherein a frame of the first NR frame structure aligned with a frame header of the first TD-LTE frame structure adopted by the TD-LTE network and aligned uplink and downlink comprises: two continuous downlink time slots, two continuous special time slots, six continuous uplink time slots, two continuous downlink time slots, two continuous special time slots and six continuous uplink time slots which are sequentially arranged;

3. The method of claim 1, wherein a frame of the second NR frame structure aligned with a frame header of the second TD-LTE frame structure adopted by the TD-LTE network and aligned uplink and downlink comprises: two continuous downlink time slots, two continuous special time slots, four continuous uplink time slots, four continuous downlink time slots, two continuous special time slots, four continuous uplink time slots and two continuous downlink time slots which are sequentially arranged;

4. The method of claim 1, wherein a frame of a third NR frame structure that is aligned with a frame header of a third TD-LTE frame structure adopted by the TD-LTE network and aligned uplink and downlink comprises: two continuous downlink time slots, two continuous special time slots, two continuous uplink time slots, six continuous downlink time slots, two continuous special time slots, two continuous uplink time slots and four continuous downlink time slots which are sequentially arranged;

5. The method of claim 1, wherein a frame of a fourth NR frame structure that is aligned with a frame header of a fourth TD-LTE frame structure adopted by the TD-LTE network and aligned uplink and downlink comprises: two continuous downlink time slots, two continuous special time slots, six continuous uplink time slots and ten continuous downlink time slots which are sequentially arranged;

6. The method of claim 1, wherein a frame of a fifth uplink and downlink aligned NR frame structure aligned with a frame header of a fifth TD-LTE frame structure adopted by the TD-LTE network comprises: two continuous downlink time slots, two continuous special time slots, four continuous uplink time slots and twelve continuous downlink time slots which are sequentially arranged;

7. The method of claim 1, wherein a frame of a sixth NR frame structure that is aligned with a frame header of a sixth TD-LTE frame structure adopted by the TD-LTE network and aligned uplink and downlink comprises: two continuous downlink time slots, two continuous special time slots, two continuous uplink time slots and fourteen continuous downlink time slots which are sequentially arranged;

8. The method of claim 1, wherein a frame of a seventh uplink and downlink aligned NR frame structure aligned with a frame header of a seventh TD-LTE frame structure adopted by the TD-LTE network comprises: two continuous downlink time slots, two continuous special time slots, six continuous uplink time slots, two continuous downlink time slots, two continuous special time slots, four continuous uplink time slots and two continuous downlink time slots which are sequentially arranged;

9. The method as claimed in claim 1, wherein when the network information block SIB1 message includes information indicating the number of downlink slots added at the end of a downlink to uplink switching period, the network information block SIB1 message further includes: at least one switching period from downlink to uplink, the number of consecutive uplink time slots which are located before and adjacent to the added downlink time slot in each switching period, and the number of consecutive downlink time slots at the beginning of each switching period.

10. A frame structure configuration method is applied to user equipment, and is characterized in that the method comprises the following steps:

11. The method of claim 10, wherein a frame of the first NR frame structure aligned with a frame header of the first TD-LTE frame structure adopted by the TD-LTE network and aligned uplink and downlink comprises: two continuous downlink time slots, two continuous special time slots, six continuous uplink time slots, two continuous downlink time slots, two continuous special time slots and six continuous uplink time slots which are sequentially arranged;

12. The method of claim 10, wherein a frame of the second NR frame structure aligned with a frame header of the second TD-LTE frame structure adopted by the TD-LTE network and aligned uplink and downlink comprises: two continuous downlink time slots, two continuous special time slots, four continuous uplink time slots, four continuous downlink time slots, two continuous special time slots, four continuous uplink time slots and two continuous downlink time slots which are sequentially arranged;

13. The method of claim 10, wherein a frame of a third NR frame structure that is aligned with a frame header of a third TD-LTE frame structure adopted by the TD-LTE network and aligned uplink and downlink comprises: two continuous downlink time slots, two continuous special time slots, two continuous uplink time slots, six continuous downlink time slots, two continuous special time slots, two continuous uplink time slots and four continuous downlink time slots which are sequentially arranged;

14. The method of claim 10, wherein a frame of a fourth NR frame structure that is aligned with a frame header of a fourth TD-LTE frame structure adopted by the TD-LTE network and aligned uplink and downlink comprises: two continuous downlink time slots, two continuous special time slots, six continuous uplink time slots and ten continuous downlink time slots which are sequentially arranged;

15. The method of claim 10, wherein a frame of a fifth uplink and downlink aligned NR frame structure aligned with a frame header of a fifth TD-LTE frame structure adopted by the TD-LTE network comprises: two continuous downlink time slots, two continuous special time slots, four continuous uplink time slots and twelve continuous downlink time slots which are sequentially arranged;

16. The method of claim 10, wherein a frame of a sixth NR frame structure that is aligned with a frame header of a sixth TD-LTE frame structure adopted by the TD-LTE network and aligned uplink and downlink comprises: two continuous downlink time slots, two continuous special time slots, two continuous uplink time slots and fourteen continuous downlink time slots which are sequentially arranged;

17. The method of claim 10, wherein a frame of a seventh uplink and downlink aligned NR frame structure aligned with a frame header of a seventh TD-LTE frame structure adopted by the TD-LTE network comprises: two continuous downlink time slots, two continuous special time slots, six continuous uplink time slots, two continuous downlink time slots, two continuous special time slots, four continuous uplink time slots and two continuous downlink time slots which are sequentially arranged;

18. The method as claimed in claim 10, wherein when the network information block SIB1 message includes information indicating the number of downlink slots added at the end of a downlink to uplink handover period, the network information block SIB1 message further includes: at least one switching period from downlink to uplink, the number of continuous uplink time slots which are positioned before the added downlink time slot and are adjacent to the added downlink time slot in each switching period, and the number of continuous downlink time slots at the beginning of each switching period;

19. A network side device, comprising a processor and a transceiver, wherein the transceiver is configured to broadcast a network information block SIB1 message, and the network information block SIB1 message includes a preset identifier for indexing in a pre-stored frame structure table, or indicates a number of downlink timeslots added at the end of a downlink to uplink handover period;

20. The network-side device of claim 19, wherein a frame of the first NR frame structure aligned with a frame header of the first TD-LTE frame structure adopted by the TD-LTE network and aligned uplink and downlink comprises: two continuous downlink time slots, two continuous special time slots, six continuous uplink time slots, two continuous downlink time slots, two continuous special time slots and six continuous uplink time slots which are sequentially arranged;

21. The network-side device of claim 19, wherein a frame of the second NR frame structure aligned with a frame header of a second TD-LTE frame structure adopted by the TD-LTE network and aligned uplink and downlink comprises: two continuous downlink time slots, two continuous special time slots, four continuous uplink time slots, four continuous downlink time slots, two continuous special time slots, four continuous uplink time slots and two continuous downlink time slots which are sequentially arranged;

22. The network-side device of claim 19, wherein a frame header of a third TD-LTE frame structure adopted by the TD-LTE network is aligned, and a frame of a third NR frame structure that is aligned uplink and downlink comprises: two continuous downlink time slots, two continuous special time slots, two continuous uplink time slots, six continuous downlink time slots, two continuous special time slots, two continuous uplink time slots and four continuous downlink time slots which are sequentially arranged;

23. The network-side device of claim 19, wherein a frame header of a fourth TD-LTE frame structure adopted by the TD-LTE network is aligned, and a frame of a fourth NR frame structure that is aligned uplink and downlink comprises: two continuous downlink time slots, two continuous special time slots, six continuous uplink time slots and ten continuous downlink time slots which are sequentially arranged;

24. The network-side device of claim 19, wherein a frame header of a fifth TD-LTE frame structure adopted by the TD-LTE network is aligned, and a frame of a fifth NR frame structure that is aligned uplink and downlink comprises: two continuous downlink time slots, two continuous special time slots, four continuous uplink time slots and twelve continuous downlink time slots which are sequentially arranged;

25. The network-side device of claim 19, wherein a frame of a sixth NR frame structure that is aligned with a frame header of a sixth TD-LTE frame structure adopted by the TD-LTE network and aligned uplink and downlink comprises: two continuous downlink time slots, two continuous special time slots, two continuous uplink time slots and fourteen continuous downlink time slots which are sequentially arranged;

26. The network-side device of claim 19, wherein a frame header of a seventh TD-LTE frame structure adopted by the TD-LTE network is aligned, and a frame of a seventh NR frame structure that is aligned uplink and downlink comprises: two continuous downlink time slots, two continuous special time slots, six continuous uplink time slots, two continuous downlink time slots, two continuous special time slots, four continuous uplink time slots and two continuous downlink time slots which are sequentially arranged;

27. The network side device of claim 19, wherein when the network information block SIB1 message includes a message indicating a number of downlink slots added at the end of a downlink to uplink handover period, the network information block SIB1 message further includes: at least one switching period from downlink to uplink, the number of consecutive uplink time slots which are located before and adjacent to the added downlink time slot in each switching period, and the number of consecutive downlink time slots at the beginning of each switching period.

28. User Equipment (UE) is characterized by comprising a processor and a transceiver, wherein the transceiver is used for receiving network information block (SIB 1) information broadcasted by network side equipment, and the network information block (SIB 1) information comprises a preset identifier or indicates the number of downlink time slots added at the end of a downlink-to-uplink switching period;

29. The ue of claim 28, wherein a frame of the first NR frame structure aligned with a frame header of the first TD-LTE frame structure adopted by the TD-LTE network and aligned uplink and downlink comprises: two continuous downlink time slots, two continuous special time slots, six continuous uplink time slots, two continuous downlink time slots, two continuous special time slots and six continuous uplink time slots which are sequentially arranged;

30. The ue of claim 28, wherein a frame of the second NR frame structure aligned with a frame header of the second TD-LTE frame structure adopted by the TD-LTE network and aligned uplink and downlink comprises: two continuous downlink time slots, two continuous special time slots, four continuous uplink time slots, four continuous downlink time slots, two continuous special time slots, four continuous uplink time slots and two continuous downlink time slots which are sequentially arranged;

31. The ue of claim 28, wherein a frame of a third NR frame structure aligned with a frame header of a third TD-LTE frame structure adopted by the TD-LTE network and aligned uplink and downlink comprises: two continuous downlink time slots, two continuous special time slots, two continuous uplink time slots, six continuous downlink time slots, two continuous special time slots, two continuous uplink time slots and four continuous downlink time slots which are sequentially arranged;

32. The ue of claim 28, wherein a frame of a fourth NR frame structure aligned with a frame header of a fourth TD-LTE frame structure adopted by the TD-LTE network and aligned uplink and downlink comprises: two continuous downlink time slots, two continuous special time slots, six continuous uplink time slots and ten continuous downlink time slots which are sequentially arranged;

33. The ue of claim 28, wherein a frame of a fifth uplink and downlink aligned NR frame structure aligned with a frame header of a fifth TD-LTE frame structure adopted by the TD-LTE network comprises: two continuous downlink time slots, two continuous special time slots, four continuous uplink time slots and twelve continuous downlink time slots which are sequentially arranged;

34. The ue of claim 28, wherein a frame of a sixth NR frame structure aligned uplink and downlink with a frame header of a sixth TD-LTE frame structure adopted by the TD-LTE network comprises: two continuous downlink time slots, two continuous special time slots, two continuous uplink time slots and fourteen continuous downlink time slots which are sequentially arranged;

35. The ue of claim 28, wherein a frame of a seventh uplink and downlink aligned NR frame structure aligned with a frame header of a seventh TD-LTE frame structure adopted by the TD-LTE network comprises: two continuous downlink time slots, two continuous special time slots, six continuous uplink time slots, two continuous downlink time slots, two continuous special time slots, four continuous uplink time slots and two continuous downlink time slots which are sequentially arranged;

36. The UE of claim 28, wherein when the network information Block SIB1 message includes a message indicating a number of downlink slots added at the end of a downlink-to-uplink handover period, the network information Block SIB1 message further comprises: at least one switching period from downlink to uplink, the number of continuous uplink time slots which are positioned before the added downlink time slot and are adjacent to the added downlink time slot in each switching period, and the number of continuous downlink time slots at the beginning of each switching period;

37. A network-side device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor; a frame structure configuration method according to any one of claims 1 to 9, when the processor executes the program.

38. A user equipment comprising a memory, a processor and a computer program stored on the memory and executable on the processor; a frame structure configuration method according to any one of claims 10 to 18, when said processor executes said program.

39. A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, carries out the steps of the frame structure configuration method according to any one of claims 1 to 9, or carries out the steps of the frame structure configuration method according to any one of claims 10 to 18.