CN107666690B - Flexible bandwidth configuration method and system, base station and user terminal - Google Patents
Flexible bandwidth configuration method and system, base station and user terminal Download PDFInfo
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Abstract
The invention discloses a flexible bandwidth configuration method and system, a base station and a user terminal. The method comprises the following steps: aggregating the two sections of standard bandwidths into a section of non-standard bandwidth; and allocating corresponding parts in the non-standard bandwidth resources to different user terminals in a scheduling mode. The invention breaks through the limitation of the traditional system to the bandwidth, flexibly applies the thinking of carrier aggregation, and divides one section of non-standard bandwidth into two sections of standard bandwidth for aggregation, thereby realizing the flexible configuration and use of the LTE system to the non-standard bandwidth, improving the utilization rate of frequency spectrum resources and being beneficial to smooth upgrade of operators to wireless networks.
Description
Technical Field
The present invention relates to the field of mobile communications, and in particular, to a flexible bandwidth configuration method and system, a base station, and a user terminal.
Background
An LTE (Long Term Evolution of the universal mobile telecommunications technology) system is widely used in a global wireless communication network, and the standard bandwidth used by the LTE system is six standards of 1.4/3/5/10/15/20MHz, while the bandwidths of 2G and 3G networks are not uniform, the configuration situation is complex, and most of the bandwidths are non-LTE standard bandwidths, and the direct re-cultivation and upgrade will cause the waste of spectrum resources.
For a certain telecom operator, a network operation may have 2G and 3G network carrier frequencies, and a part of frequency bands may exist for a long time, for example, a CDMA (Code Division Multiple Access) carrier frequency carries a 1x voice signal, and occupies a segment of spectrum resources for a long time, so that an LTE system upgrade will not fully benefit bandwidth resources for a long time, which causes spectrum resource waste and difficulty in smooth upgrade of the system, and therefore an LTE technology that flexibly utilizes a non-standard bandwidth is urgently needed.
Disclosure of Invention
In view of the above technical problems, the present invention provides a flexible bandwidth configuration method and system, a base station, and a user terminal, which break through the standard limitation of the LTE system bandwidth, and enable LTE to fully use non-standard bandwidth resources.
According to an aspect of the present invention, there is provided a flexible bandwidth configuration method, including:
aggregating the two sections of standard bandwidths into a section of non-standard bandwidth;
and allocating corresponding parts in the non-standard bandwidth resources to different user terminals in a scheduling mode.
In one embodiment of the present invention, the two pieces of standard bandwidth are a first standard bandwidth and a second standard bandwidth;
the first standard bandwidth and the second standard bandwidth are partially overlapped, and the bandwidth range of the non-standard bandwidth is smaller than the sum of the bandwidth ranges of the first standard bandwidth and the second standard bandwidth.
In one embodiment of the present invention, the first standard bandwidth is a primary carrier, and the second standard bandwidth is a secondary carrier;
the second standard bandwidth comprises a first part and a second part, wherein the second part is coincident with the main carrier;
the bandwidth range of the non-standard bandwidth is equal to the sum of the bandwidth ranges of the first standard bandwidth and the first part of the second standard bandwidth.
In an embodiment of the present invention, after aggregating two pieces of standard bandwidth into one piece of non-standard bandwidth, the method further includes:
sending a special System Information Block (SIB) message to a user terminal, wherein the special SIB message comprises flexible bandwidth configuration information, and the flexible bandwidth configuration information comprises auxiliary carrier central frequency point information and bandwidth information; and then executing the step of allocating the corresponding part in the non-standard bandwidth resources to different user terminals in a scheduling mode.
In an embodiment of the present invention, the allocating, by a scheduling manner, corresponding parts of non-standard bandwidth resources to different user terminals includes:
acquiring user terminal capability information;
and distributing corresponding parts in the non-standard bandwidth resources to different user terminals according to the user terminal capability information.
In an embodiment of the present invention, said allocating respective portions of the non-standard bandwidth resources to different user terminals according to the user terminal capability information comprises:
judging whether the user terminal supports the flexible bandwidth configuration function or not;
if the user terminal does not support the flexible bandwidth configuration function, providing the first standard bandwidth resource for the user terminal;
if the user terminal supports the flexible bandwidth configuration function, continuously judging whether the user terminal supports the capability information of the standard bandwidth or supports the capability information of the full bandwidth;
if the user terminal supports the capability information of the standard bandwidth, the second standard bandwidth resource is provided for the user terminal after the user terminal shifts from the main carrier to the auxiliary carrier;
and if the user terminal supports the full-bandwidth capability information, providing the whole non-standard bandwidth resource to the user terminal.
According to another aspect of the present invention, there is provided a flexible bandwidth configuration method, including:
accessing a base station through a main carrier, wherein the base station aggregates a first standard bandwidth and a second standard bandwidth into a section of non-standard bandwidth, the first standard bandwidth and the second standard bandwidth are partially overlapped, the first standard bandwidth is the main carrier, and the second standard bandwidth is an auxiliary carrier;
receiving a special System Information Block (SIB) message sent by a base station, wherein the special SIB message comprises flexible bandwidth configuration information, and the flexible bandwidth configuration information comprises auxiliary carrier central frequency point information and bandwidth information;
and after receiving the flexible bandwidth configuration information, shifting the working frequency band from the main carrier to the auxiliary carrier to work.
According to another aspect of the present invention, there is provided a flexible bandwidth configuration method, including:
accessing a base station through a main carrier, wherein the base station aggregates a first standard bandwidth and a second standard bandwidth into a section of non-standard bandwidth, the first standard bandwidth and the second standard bandwidth are partially overlapped, the first standard bandwidth is the main carrier, and the second standard bandwidth is an auxiliary carrier;
receiving a special System Information Block (SIB) message sent by a base station, wherein the special SIB message comprises flexible bandwidth configuration information, and the flexible bandwidth configuration information comprises auxiliary carrier central frequency point information and bandwidth information;
and after receiving the flexible bandwidth configuration information, working on the whole bandwidth range of the non-standard bandwidth.
According to another aspect of the present invention, there is provided a base station, including a bandwidth aggregation module and a resource allocation module, wherein:
the bandwidth aggregation module is used for aggregating the two sections of standard bandwidths into a section of non-standard bandwidth;
and the resource allocation module is used for allocating corresponding parts in the non-standard bandwidth resources to different user terminals in a scheduling mode.
In one embodiment of the present invention, the two pieces of standard bandwidth are a first standard bandwidth and a second standard bandwidth;
the first standard bandwidth and the second standard bandwidth are partially overlapped, and the bandwidth range of the non-standard bandwidth is smaller than the sum of the bandwidth ranges of the first standard bandwidth and the second standard bandwidth.
In one embodiment of the present invention, the first standard bandwidth is a primary carrier, and the second standard bandwidth is a secondary carrier;
the second standard bandwidth comprises a first part and a second part, wherein the second part is coincident with the main carrier;
the bandwidth range of the non-standard bandwidth is equal to the sum of the bandwidth ranges of the first standard bandwidth and the first part of the second standard bandwidth.
In one embodiment of the present invention, the base station further includes a SIB message transmission module, wherein:
an SIB message sending module, configured to send a special system information block SIB message to a user equipment after aggregating two segments of standard bandwidths into a segment of non-standard bandwidth by a bandwidth aggregation module, where the special SIB message includes flexible bandwidth configuration information, and the flexible bandwidth configuration information includes auxiliary carrier center frequency point information and bandwidth information; and then instructing the resource allocation module to execute the operation of allocating the corresponding part in the non-standard bandwidth resource to different user terminals in a scheduling mode.
In one embodiment of the present invention, the resource allocation module includes a terminal capability obtaining unit and a resource allocation unit, wherein:
a terminal capability obtaining unit, configured to obtain user terminal capability information;
and the resource allocation unit is used for allocating corresponding parts in the non-standard bandwidth resources to different user terminals according to the capability information of the user terminals.
In one embodiment of the invention, the resource allocation unit comprises a first identification submodule, a second identification submodule and a resource allocation submodule, wherein:
the first identification submodule is used for judging whether the user terminal supports the flexible bandwidth configuration function;
the second identification submodule is used for continuously judging whether the user terminal supports the capacity information of the standard bandwidth or the capacity information of the full bandwidth under the condition that the user terminal supports the flexible bandwidth configuration function according to the judgment result of the first identification submodule;
the resource allocation submodule is used for providing the first standard bandwidth resource for the user terminal under the condition that the user terminal does not support the flexible bandwidth configuration function according to the judgment result of the first identification submodule; according to the judgment result of the second identification submodule, under the condition that the user terminal supports the capability information of the standard bandwidth, after the user terminal shifts from the main carrier to the auxiliary carrier, second standard bandwidth resources are provided for the user terminal; and according to the judgment result of the second identification submodule, under the condition that the user terminal supports the capacity information of the full bandwidth, the whole non-standard bandwidth resource is provided for the user terminal.
According to another aspect of the present invention, there is provided a user terminal, including a network access module, a configuration information receiving module, and an operating band shifting module, wherein:
the network access module is used for accessing a base station through a main carrier, wherein the base station aggregates a first standard bandwidth and a second standard bandwidth into a section of nonstandard bandwidth, the first standard bandwidth and the second standard bandwidth are partially overlapped, the first standard bandwidth is the main carrier, and the second standard bandwidth is an auxiliary carrier;
the system comprises a configuration information receiving module, a configuration information sending module and a configuration information sending module, wherein the configuration information receiving module is used for receiving a special System Information Block (SIB) message sent by a base station, the special SIB message comprises flexible bandwidth configuration information, and the flexible bandwidth configuration information comprises auxiliary carrier central frequency point information and bandwidth information;
and the working frequency band shifting module is used for shifting the working frequency band from the main carrier to the auxiliary carrier to work after the configuration information receiving module receives the flexible bandwidth configuration information.
According to another aspect of the present invention, there is provided a user terminal, including a network access module, a configuration information receiving module, and an operating frequency band determining module, wherein:
the network access module is used for accessing a base station through a main carrier, wherein the base station aggregates a first standard bandwidth and a second standard bandwidth into a section of nonstandard bandwidth, the first standard bandwidth and the second standard bandwidth are partially overlapped, the first standard bandwidth is the main carrier, and the second standard bandwidth is an auxiliary carrier;
the system comprises a configuration information receiving module, a configuration information sending module and a configuration information sending module, wherein the configuration information receiving module is used for receiving a special System Information Block (SIB) message sent by a base station, the special SIB message comprises flexible bandwidth configuration information, and the flexible bandwidth configuration information comprises auxiliary carrier central frequency point information and bandwidth information;
and the working frequency band determining module is used for working in the whole bandwidth range of the nonstandard bandwidth after the configuration information receiving module receives the flexible bandwidth configuration information.
According to another aspect of the present invention, a flexible bandwidth configuration system is provided, which includes a user terminal and the base station described in any of the above embodiments.
In an embodiment of the present invention, the ue is the ue described in any of the above embodiments.
The invention breaks through the standard limit of the LTE system bandwidth, and enables the LTE to fully use non-standard bandwidth resources, such as 9MHz and 17MHz, thereby improving the utilization rate of frequency spectrum resources and being beneficial to smooth upgrade of wireless networks by operators.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a diagram of a flexible bandwidth configuration system according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a flexible bandwidth allocation system for flexibly allocating nonstandard bandwidths according to the present invention.
Fig. 3 is a diagram illustrating a base station according to an embodiment of the present invention.
Fig. 4 is a diagram illustrating a base station according to another embodiment of the present invention.
Fig. 5 is a diagram illustrating a resource allocation module according to an embodiment of the invention.
Fig. 6 is a diagram of a resource allocation unit according to an embodiment of the present invention.
Fig. 7 is a diagram illustrating a flexible bandwidth configuration method according to a first embodiment of the present invention.
Fig. 8 is a diagram illustrating allocation of corresponding portions of non-standard bandwidth resources to different ues according to the ue capability information according to an embodiment of the present invention.
Fig. 9 is a diagram illustrating a user terminal according to a first embodiment of the present invention.
Fig. 10 is a diagram illustrating a flexible bandwidth configuration method according to a second embodiment of the present invention.
Fig. 11 is a diagram illustrating a user terminal according to a first embodiment of the present invention.
Fig. 12 is a diagram illustrating a flexible bandwidth configuration method according to a third 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 only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. 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.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the network of the telecom operator, continuous bandwidths with different widths exist, the bandwidths do not belong to the standard bandwidth range of the LTE system specification, such as 1.4MHz,3MHz,5MHz,10MHz,15MHz and 20MHz, the operator can only use the bandwidth partially, the operator can only use the bandwidth matched with the maximum standard bandwidth downwards, such as 7MHz bandwidth, and only use 5MHz and 19MHz bandwidth to use 15MHz.
The invention provides a carrier aggregation technology similar to an LTE system, which aggregates two sections of bandwidths into a section of bandwidth with a non-standard length. The following is a detailed description by way of example.
FIG. 1 is a diagram of a flexible bandwidth configuration system according to an embodiment of the present invention. As shown in fig. 1, the flexible bandwidth configuration system includes a base station 1 and a user terminal 2, where:
the base station 1 on the network side is configured to superpose and aggregate two sections of standard bandwidths into a section of nonstandard bandwidth by using a method similar to carrier aggregation, and the base station on the network side allocates resources to different user terminals 2 by using a scheduling method.
In one embodiment of the present invention, as shown in fig. 2, the two pieces of standard bandwidth may be a first standard bandwidth and a second standard bandwidth; the first standard bandwidth and the second standard bandwidth are partially overlapped, and the bandwidth range of the non-standard bandwidth is smaller than the sum of the bandwidth ranges of the first standard bandwidth and the second standard bandwidth.
In a preferred embodiment of the present invention, as shown in fig. 2, the first standard bandwidth is a primary carrier, and the second standard bandwidth is a secondary carrier; the second standard bandwidth may include a first portion and a second portion, wherein the second portion coincides with the primary carrier; the bandwidth range of the non-standard bandwidth is equal to the sum of the bandwidth ranges of the first standard bandwidth and the first part of the second standard bandwidth.
In one embodiment of the present invention, as shown in fig. 2, there exists a segment of bandwidth of 7MHz in the network, which can be considered as a superposition of two segments of bandwidth of 5MHz, where the right segment of 5MHz is an LTE network that has been deployed and used by a telecommunications operator, and is used as a primary carrier (first standard bandwidth); the left 5MHz is the virtual 5MHz bandwidth as the secondary carrier (second standard bandwidth) which contains the 2MHz extra bandwidth (second standard bandwidth first part).
In one embodiment of the present invention, the first standard bandwidth and the second standard bandwidth may be two standard bandwidths arbitrarily selected from existing standard bandwidth ranges, such as 1.4MHz,3MHz,5MHz,10MHz,15MHz, and 20 MHz; the first standard bandwidth and the second standard bandwidth may be different.
Therefore, the invention can realize flexible combination of various continuous bandwidths with different widths, for example, the nonstandard bandwidth of 7MHz can be realized by the standard bandwidth of 5MHz +5MHz or the standard bandwidth of 5MHz +3MHz, as long as various combinations of the standard bandwidths are satisfied.
From the network side, through configuration, the base station 1 can grasp the working bandwidth information, including the usable bandwidth width of 7MHz, where the right 5MHz is the working frequency band of the main carrier, and the left 5MHz is the working frequency band of the auxiliary carrier. The broadcast information sent by the base station 1 to the user includes flexible bandwidth configuration information, wherein an SIB message is newly defined to notify the user of the center frequency point information and the bandwidth information of the secondary carrier. The base station 1 simultaneously grasps the capability information of the user terminal 2 in the network, including the capability information of whether the user terminal 2 supports the flexible bandwidth configuration function, and the capability information of whether the user terminal 2 supports the standard bandwidth or the full bandwidth.
From the user side, as shown in fig. 2, the user terminal 2 in the embodiment of fig. 1 may be a legacy user terminal UE, a new UE supporting standard bandwidth, and a new UE supporting full bandwidth, where:
conventional user terminals, although they do not support the flexible bandwidth configuration function, may operate on the primary carrier, i.e., the flexible bandwidth configuration function is transparent to them. The frequency sweeping synchronization after the UE is started, the network residing at the end of the public information receiving from the initial network access are the same as the existing LTE system, and no change is needed.
A new UE on the user side is supporting flexible bandwidth configuration functionality, which needs to be supported by standardization. From the view point of function support capability, the UE is divided into two UEs supporting standard bandwidth and full bandwidth, i.e. two UEs supporting 5MHz and 7MHz in the figure.
The UEs supporting the standard bandwidth can still only support the 5MHz bandwidth, but unlike the conventional UEs, they can work on the secondary carrier, and their initial access process is also completed on the primary carrier, as in the conventional UEs, after receiving the System Information Block (SIB) sent by the network, the UEs are shifted from the primary carrier to the secondary carrier to work, and the center of the working band is shifted from the direct current carrier (DC) in the center of the primary carrier to the virtual DC carrier in the center of the secondary carrier. In the actual network operation process, the UE only occupies the 2MHz bandwidth on the left of the auxiliary carrier, and simultaneously shares the middle 3MHz bandwidth with the traditional UE, and the resources are uniformly scheduled by the network side.
UEs supporting the full bandwidth also need protocol functionality support, unlike the first two UEs, which will operate on this 7MHz bandwidth. Similar to UEs supporting standard bandwidth, UEs supporting full bandwidth first perform initial access on the primary carrier, and after receiving the SIB message indicating that the current network can use 7MHz bandwidth, such UEs will operate on the entire 7MHz bandwidth.
Based on the flexible bandwidth configuration system provided by the embodiment of the invention, the limitation of the traditional system to the bandwidth is broken through, the thinking of carrier aggregation is flexibly applied, and one section of non-standard bandwidth is divided into two sections of standard bandwidth for aggregation, so that the flexible configuration and use of the LTE system to the non-standard bandwidth are realized, the utilization rate of frequency spectrum resources is improved, and the smooth upgrade of an operator to a wireless network is facilitated; meanwhile, the method realizes the compatibility of the latter item on the basis of the original standard, and has no influence on the traditional system.
The embodiment of the invention can realize flexible bandwidth configuration with the bandwidth of 1.4MHz to 20MHz aiming at all LTE systems and LTE enhancement systems.
The embodiment of the invention can be applied to a 4G network scene in which operators replant the existing 2G and 3G network spectrum resources, and a newly-built 4G network spectrum resource is a nonstandard bandwidth scene.
The improvement of the structure and function of the base station 1 and the user terminal 2 in the flexible bandwidth configuration system of the present invention is further described by specific examples.
Fig. 3 is a diagram illustrating a base station according to an embodiment of the present invention. As shown in fig. 3, the base station 1 in the embodiment of fig. 1 includes a bandwidth aggregation module 11 and a resource allocation module 12, where:
a bandwidth aggregation module 11, configured to aggregate two segments of standard bandwidths into a segment of non-standard bandwidth;
in an embodiment of the present invention, as shown in fig. 2, the two pieces of standard bandwidth are a first standard bandwidth and a second standard bandwidth; the first standard bandwidth and the second standard bandwidth are partially overlapped, and the bandwidth range of the non-standard bandwidth is smaller than the sum of the bandwidth ranges of the first standard bandwidth and the second standard bandwidth.
In an embodiment of the present invention, as shown in fig. 2, the first standard bandwidth is a primary carrier, and the second standard bandwidth is a secondary carrier; the second standard bandwidth comprises a first part and a second part, wherein the second part is coincident with the main carrier; the bandwidth range of the non-standard bandwidth is equal to the sum of the first standard bandwidth and the bandwidth range of the first part of the second standard bandwidth.
A resource allocation module 12, configured to allocate corresponding portions of the non-standard bandwidth resources to different user terminals in a scheduling manner.
Fig. 4 is a diagram illustrating a base station according to another embodiment of the present invention. Compared with the embodiment shown in fig. 3, in the embodiment shown in fig. 4, the base station may further include an SIB message sending module 13, where:
an SIB message sending module 13, configured to send a dedicated system information block SIB message to the ue after the bandwidth aggregation module 11 aggregates two segments of the standard bandwidth into a segment of the non-standard bandwidth, where the dedicated SIB message is a newly defined SIB message. The special SIB message includes flexible bandwidth configuration information, and the flexible bandwidth configuration information includes auxiliary carrier center frequency point information and bandwidth information; the resource allocation module 12 is then instructed to perform an operation of allocating respective portions of the non-standard bandwidth resources to different user terminals by means of scheduling.
In an embodiment of the present invention, as shown in fig. 4, the base station may further include a parameter setting module 14, where:
and a parameter setting module 14, configured to reset the center carrier frequency DC, the reference signal parameter, and the like.
Based on the base station provided by the embodiment of the invention, two sections of standard bandwidths are aggregated into one section of nonstandard bandwidth in a similar carrier aggregation mode at a network side, and network resources are fully utilized in a scheduling mode. The base station grasps the working bandwidth information through configuration, wherein the usable bandwidth width is 7MHz, the right 5MHz is a main carrier working frequency band, and the left 5MHz is an auxiliary carrier working frequency band.
The above embodiment of the present invention implements flexible bandwidth configuration function definition on the network side, redefines new SIB messages, and includes information such as virtual dc carrier and bandwidth configuration. The main and auxiliary carrier wave overlapping bandwidth resources are uniformly and flexibly scheduled by the network side. Meanwhile, the broadcast information sent by the base station to the user comprises flexible bandwidth configuration information, wherein an SIB message is newly defined to inform the user of the center frequency point information and the bandwidth information of the auxiliary carrier.
Therefore, the embodiment of the invention realizes the flexible configuration and use of the LTE system to the non-standard bandwidth, thereby improving the utilization rate of frequency spectrum resources and being beneficial to smooth upgrade of wireless networks by operators.
Fig. 5 is a diagram illustrating a resource allocation module according to an embodiment of the invention. As shown in fig. 5, the resource allocation module 12 in the embodiment of fig. 3 or fig. 4 includes a terminal capability obtaining unit 121 and a resource allocation unit 122, where:
a terminal capability obtaining unit 121, configured to obtain user terminal capability information.
A resource allocating unit 122, configured to allocate corresponding portions of the non-standard bandwidth resources to different user terminals according to the user terminal capability information.
Fig. 6 is a diagram of a resource allocation unit according to an embodiment of the present invention. As shown in fig. 6, the resource allocation unit 122 in the embodiment of fig. 5 may include a first identification submodule 1221, a second identification submodule 1222, and a resource allocation submodule 1223, where:
a first identification submodule 1221, configured to determine whether the user terminal supports a flexible bandwidth configuration function;
a second identifying submodule 1222, configured to, according to the determination result of the first identifying submodule 1221, continue to determine whether the ue supports the capability information of the standard bandwidth or the capability information of the full bandwidth when the ue supports the flexible bandwidth configuration function;
a resource allocation submodule 1223, configured to provide the first standard bandwidth resource to the user terminal according to a determination result of the first identification submodule 1221, when the user terminal does not support the flexible bandwidth configuration function; according to the judgment result of the second identification submodule 1222, in case that the ue supports the capability information of the standard bandwidth, after the ue shifts from the primary carrier to the secondary carrier, the second standard bandwidth resource is provided to the ue; and according to the judgment result of the second identifying submodule 1222, in case that the user terminal supports the capability information of the full bandwidth, providing the whole non-standard bandwidth resource to the user terminal.
In the above embodiments of the present invention, the base station grasps the user capability information in the network, including the capability information whether the user supports the flexible bandwidth configuration function, and the capability information whether the user supports the standard bandwidth or the full bandwidth. Therefore, the embodiment of the invention can allocate the corresponding part in the non-standard bandwidth resource to different user terminals according to the capability information of the user terminals, thereby breaking through the limitation of the traditional system to the bandwidth, flexibly applying the thinking of carrier aggregation, and dividing one section of the non-standard bandwidth into two sections of standard bandwidths for aggregation, thereby realizing the flexible configuration and use of the LTE system to the non-standard bandwidth, thereby improving the utilization rate of the frequency spectrum resource and being beneficial to the smooth upgrade of the wireless network by operators; meanwhile, the method realizes the latter compatibility on the basis of the original standard, has no influence on the traditional system and is completely transparent to the traditional UE.
Fig. 7 is a diagram illustrating a flexible bandwidth configuration method according to a first embodiment of the present invention. Preferably, this embodiment can be executed by the base station in any of the above embodiments of the present invention. As shown in fig. 7, the method includes:
In one embodiment of the present invention, as shown in fig. 2, the two pieces of standard bandwidth may be a first standard bandwidth and a second standard bandwidth; the first standard bandwidth and the second standard bandwidth are partially overlapped, and the bandwidth range of the non-standard bandwidth is smaller than the sum of the bandwidth ranges of the first standard bandwidth and the second standard bandwidth.
In a preferred embodiment of the present invention, as shown in fig. 2, the first standard bandwidth is a primary carrier, and the second standard bandwidth is a secondary carrier; the second standard bandwidth may include a first portion and a second portion, wherein the second portion coincides with the primary carrier; the bandwidth range of the non-standard bandwidth is equal to the sum of the bandwidth ranges of the first standard bandwidth and the first part of the second standard bandwidth.
In an embodiment of the present invention, after step 701, the method may further include: sending a special System Information Block (SIB) message to a user terminal, wherein the special SIB message comprises flexible bandwidth configuration information, and the flexible bandwidth configuration information comprises auxiliary carrier central frequency point information and bandwidth information; step 702 is then performed.
Based on the flexible bandwidth configuration method provided by the above embodiment of the present invention, two segments of standard bandwidths are aggregated into one segment of non-standard bandwidth in a manner similar to carrier aggregation at the network side, and network resources are fully utilized in a scheduling manner. The base station grasps the working bandwidth information through configuration, wherein the usable bandwidth width is 7MHz, the right 5MHz is a main carrier working frequency band, and the left 5MHz is an auxiliary carrier working frequency band.
The above embodiment of the present invention implements flexible bandwidth configuration function definition on the network side, redefines new SIB messages, and includes information such as virtual dc carrier and bandwidth configuration. The main and auxiliary carrier wave overlapping bandwidth resources are uniformly and flexibly scheduled by the network side. Meanwhile, the broadcast information sent by the base station to the user comprises flexible bandwidth configuration information, wherein an SIB message is newly defined to inform the user of the center frequency point information and the bandwidth information of the auxiliary carrier.
Therefore, the embodiment of the invention realizes the flexible configuration and use of the LTE system to the non-standard bandwidth, thereby improving the utilization rate of frequency spectrum resources and being beneficial to smooth upgrade of wireless networks by operators.
In one embodiment of the present invention, step 702 in the embodiment of FIG. 7 may include: acquiring user terminal capability information; and distributing corresponding parts in the non-standard bandwidth resources to different user terminals according to the user terminal capability information.
Fig. 8 is a diagram illustrating allocation of corresponding portions of non-standard bandwidth resources to different ues according to ue capability information according to an embodiment of the present invention. Preferably, this embodiment may be performed by the resource allocation unit in any of the above embodiments of the present invention. As shown in fig. 7, the step of allocating the corresponding portion of the non-standard bandwidth resource to different user terminals according to the user terminal capability information may include:
In the above embodiment of the present invention, the network base station grasps the user capability information in the network, including the capability information whether the user supports the flexible bandwidth configuration function, and the capability information whether the user supports the standard bandwidth or the full bandwidth. Therefore, the above-mentioned embodiment of the present invention can allocate the corresponding part of the non-standard bandwidth resource to different user terminals according to the capability information of the user terminals.
Therefore, the embodiment of the invention breaks through the limitation of the traditional system to the bandwidth, flexibly applies the thinking of carrier aggregation, and divides one section of non-standard bandwidth into two sections of standard bandwidths for aggregation, thereby realizing the flexible configuration and use of the LTE system to the non-standard bandwidth, improving the utilization rate of frequency spectrum resources and being beneficial to the smooth upgrade of operators to the wireless network; meanwhile, on the basis of the original standard, the method realizes the compatibility of the latter item, has no influence on the traditional system, and is completely transparent to the traditional UE.
Fig. 9 is a diagram illustrating a user terminal according to a first embodiment of the present invention. As shown in fig. 9, the user terminal 2 in the embodiment of fig. 1 includes a network access module 21, a configuration information receiving module 22, and an operating band shifting module 23, where:
the network access module 21 is configured to access a base station through a primary carrier, where the base station aggregates a first standard bandwidth and a second standard bandwidth into a non-standard bandwidth, the first standard bandwidth and the second standard bandwidth are partially overlapped, the first standard bandwidth is the primary carrier, and the second standard bandwidth is a secondary carrier.
A configuration information receiving module 22, configured to receive a dedicated system information block SIB message sent by a base station, where the dedicated SIB message includes flexible bandwidth configuration information, and the flexible bandwidth configuration information includes secondary carrier center frequency point information and bandwidth information.
And the working frequency band shifting module 23 is configured to shift the working frequency band from the primary carrier to the secondary carrier to work after the configuration information receiving module 22 receives the flexible bandwidth configuration information.
The UE supporting the standard bandwidth still can only support 5MHz bandwidth, but different from the conventional UE, they can work on the secondary carrier, and the initial access process is the same as that of the conventional UE, and is also completed on the primary carrier, after receiving the system message SIB sent by the network, the primary carrier is shifted to the secondary carrier to work, and the dc carrier in the center of the working frequency band is shifted to the virtual dc carrier in the center of the secondary carrier. In the actual network operation process, the UE only occupies the 2MHz bandwidth on the left of the secondary carrier, and shares the middle 3MHz bandwidth with the conventional UE, and the resources are scheduled uniformly by the network side.
Because the UE supporting the standard bandwidth provided by the above embodiment of the present invention can only occupy the 2MHz bandwidth on the left of the secondary carrier, the network speed of the user on the terminal side can be increased, and the user experience is improved; the LTE can fully use non-standard bandwidth resources, so that the utilization rate of frequency spectrum resources is improved, and smooth upgrading of an operator to a wireless network is facilitated.
Fig. 10 is a diagram illustrating a flexible bandwidth configuration method according to a second embodiment of the present invention. Preferably, this embodiment may be executed by a user equipment supporting standard bandwidth in any of the above embodiments of the present invention. As shown in fig. 10, the method includes:
In one embodiment of the present invention, the step of accessing the base station through the primary carrier may include:
1. and the direct current carrier position is obtained by frequency sweeping, and frequency domain positioning is realized.
2. And synchronizing a Primary Synchronization Signal (PSS) and an auxiliary synchronization signal (SSS) in a cell to realize time domain positioning.
3. Reference signals and broadcast signal Information (MIB (Master Information Block) messages) are acquired and then access to the network via the host carrier.
Based on the flexible bandwidth configuration method provided by the above embodiment of the present invention, the UE supporting standard bandwidth executes the initial access process, which is also completed on the primary carrier as the conventional UE, and after receiving the system message SIB sent by the network, the primary carrier is shifted to the secondary carrier to work, and the dc carrier in the center of the working band is shifted to the virtual dc carrier in the center of the secondary carrier. In the actual network operation process, as shown in fig. 2, such UE will only occupy the 2MHz bandwidth on the left of the secondary carrier, and simultaneously share the middle 3MHz bandwidth with the conventional UE, and the resources are scheduled uniformly by the network side.
Because the UE supporting the standard bandwidth provided by the above embodiment of the present invention can only occupy the 2MHz bandwidth on the left of the secondary carrier, the network speed of the user on the terminal side can be provided, and the user experience is improved; the LTE can fully use non-standard bandwidth resources, so that the utilization rate of frequency spectrum resources is improved, and smooth upgrading of an operator to a wireless network is facilitated.
Fig. 11 is a diagram illustrating a user terminal according to a first embodiment of the present invention. As shown in fig. 11, the user terminal 2 in the embodiment of fig. 1 includes a network access module 21, a configuration information receiving module 22, and an operating frequency band determining module 24, where:
the network access module 21 is configured to access a base station through a primary carrier, where the base station aggregates a first standard bandwidth and a second standard bandwidth into a non-standard bandwidth, the first standard bandwidth and the second standard bandwidth are partially overlapped, the first standard bandwidth is the primary carrier, and the second standard bandwidth is a secondary carrier.
A configuration information receiving module 22, configured to receive a dedicated system information block SIB message sent by a base station, where the dedicated SIB message includes flexible bandwidth configuration information, and the flexible bandwidth configuration information includes auxiliary carrier center frequency point information and bandwidth information.
And the operating frequency band determining module 24 is configured to operate on the whole bandwidth range of the non-standard bandwidth after the flexible bandwidth configuration information is received by the configuration information receiving module 22.
Based on the UE supporting full bandwidth provided in the above embodiment of the present invention, the protocol is also required to support the function, and unlike the embodiment of fig. 9 and the conventional UE, such UE will operate on this 7MHz bandwidth. Similar to the UE supporting the standard bandwidth in the embodiment of fig. 9, the UE supporting the full bandwidth first performs initial access on the primary carrier, and after receiving the SIB message indicating that the network can use the 7MHz bandwidth currently, such UE will operate on the entire 7MHz bandwidth. The embodiment of the invention can ensure that the LTE user terminal can fully use the non-standard bandwidth resource, thereby improving the utilization rate of the frequency spectrum resource and being beneficial to smooth upgrade of the wireless network by an operator.
Fig. 12 is a diagram illustrating a flexible bandwidth configuration method according to a third embodiment of the present invention. Preferably, this embodiment may be performed by a user terminal supporting full bandwidth in any of the above embodiments of the present invention. As shown in fig. 12, the method includes:
Based on the flexible bandwidth configuration method provided by the above embodiment of the present invention, the flexible bandwidth configuration method is executed by the user equipment supporting the full bandwidth, the UE supporting the full bandwidth first performs the initial access on the main carrier, and after receiving the SIB message and indicating that the current network can use the 7MHz bandwidth, the UE of this type will operate on the whole 7MHz bandwidth. Therefore, the embodiment of the invention can enable the LTE user terminal to fully use the non-standard bandwidth resource, thereby improving the utilization rate of the frequency spectrum resource and being beneficial to smooth upgrade of the wireless network by an operator.
The functional elements of bandwidth aggregation module 11, resource allocation module 12, SIB messaging module 13, parameter setting module 14, network access module 21, configuration information reception module 22 and operating band offset module 23, operating band determination module 24, etc., described above may be implemented as a general purpose processor, a Programmable Logic Controller (PLC), a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any suitable combination thereof, for performing the functions described herein.
Thus far, the present invention has been described in detail. Some details well known in the art have not been described in order to avoid obscuring the concepts of the present invention. Those skilled in the art can now fully appreciate how to implement the teachings disclosed herein, in view of the foregoing description.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The description of the present invention has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to practitioners skilled in this art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (16)
1. A flexible bandwidth configuration method, comprising:
aggregating the two sections of standard bandwidths into a section of non-standard bandwidth;
allocating corresponding parts in the non-standard bandwidth resources to different user terminals in a scheduling mode;
wherein the allocating the corresponding parts of the non-standard bandwidth resources to different user terminals by the scheduling method comprises:
acquiring user terminal capability information;
and distributing the corresponding part in the non-standard bandwidth resources to different user terminals according to the user terminal capability information.
2. The method of claim 1,
the two sections of standard bandwidths are a first standard bandwidth and a second standard bandwidth;
the first standard bandwidth and the second standard bandwidth are partially overlapped, and the bandwidth range of the non-standard bandwidth is smaller than the sum of the bandwidth ranges of the first standard bandwidth and the second standard bandwidth.
3. The method of claim 2,
the first standard bandwidth is a main carrier, and the second standard bandwidth is an auxiliary carrier;
the second standard bandwidth comprises a first part and a second part, wherein the second part is coincident with the main carrier;
the bandwidth range of the non-standard bandwidth is equal to the sum of the bandwidth ranges of the first standard bandwidth and the first part of the second standard bandwidth.
4. The method according to any one of claims 1-3, wherein after aggregating two segments of standard bandwidth into one segment of non-standard bandwidth, further comprising:
sending a special System Information Block (SIB) message to a user terminal, wherein the special SIB message comprises flexible bandwidth configuration information, and the flexible bandwidth configuration information comprises auxiliary carrier central frequency point information and bandwidth information; and then executing the step of allocating the corresponding part in the non-standard bandwidth resources to different user terminals in a scheduling mode.
5. The method of claim 4, wherein the allocating respective portions of non-standard bandwidth resources to different user terminals according to the user terminal capability information comprises:
judging whether the user terminal supports the flexible bandwidth configuration function or not;
if the user terminal does not support the flexible bandwidth configuration function, providing the first standard bandwidth resource to the user terminal;
if the user terminal supports the flexible bandwidth configuration function, continuing to judge whether the user terminal supports the capability information of the standard bandwidth or supports the capability information of the full bandwidth;
if the user terminal supports the capability information of the standard bandwidth, the second standard bandwidth resource is provided for the user terminal after the user terminal shifts from the main carrier to the auxiliary carrier;
and if the user terminal supports the full-bandwidth capability information, providing the whole non-standard bandwidth resource to the user terminal.
6. A flexible bandwidth configuration method, comprising:
accessing a base station through a main carrier, wherein the base station aggregates a first standard bandwidth and a second standard bandwidth into a section of non-standard bandwidth, the first standard bandwidth and the second standard bandwidth are partially overlapped, the first standard bandwidth is the main carrier, and the second standard bandwidth is an auxiliary carrier;
receiving a special System Information Block (SIB) message sent by a base station, wherein the special SIB message comprises flexible bandwidth configuration information, the flexible bandwidth configuration information comprises auxiliary carrier central frequency point information and bandwidth information, and the base station is used for acquiring user terminal capability information and allocating corresponding parts in non-standard bandwidth resources to different user terminals according to the user terminal capability information;
and after receiving the flexible bandwidth configuration information, shifting the working frequency band from the main carrier to the auxiliary carrier to work.
7. A flexible bandwidth configuration method, comprising:
accessing a base station through a main carrier, wherein the base station aggregates a first standard bandwidth and a second standard bandwidth into a section of nonstandard bandwidth, the first standard bandwidth and the second standard bandwidth are partially overlapped, the first standard bandwidth is the main carrier, and the second standard bandwidth is an auxiliary carrier;
receiving a special System Information Block (SIB) message sent by a base station, wherein the special SIB message comprises flexible bandwidth configuration information, the flexible bandwidth configuration information comprises auxiliary carrier central frequency point information and bandwidth information, and the base station is used for acquiring user terminal capability information and allocating corresponding parts in non-standard bandwidth resources to different user terminals according to the user terminal capability information;
and after receiving the flexible bandwidth configuration information, working on the whole bandwidth range of the non-standard bandwidth.
8. A base station comprising a bandwidth aggregation module and a resource allocation module, wherein:
the bandwidth aggregation module is used for aggregating the two sections of standard bandwidths into a section of non-standard bandwidth;
a resource allocation module, configured to allocate corresponding portions of non-standard bandwidth resources to different user terminals in a scheduling manner;
the resource allocation module comprises a terminal capability acquisition unit and a resource allocation unit, wherein:
a terminal capability obtaining unit, configured to obtain user terminal capability information;
and the resource allocation unit is used for allocating corresponding parts in the non-standard bandwidth resources to different user terminals according to the capability information of the user terminals.
9. The base station of claim 8,
the two sections of standard bandwidths are a first standard bandwidth and a second standard bandwidth;
the first standard bandwidth and the second standard bandwidth are partially overlapped, and the bandwidth range of the non-standard bandwidth is smaller than the sum of the bandwidth ranges of the first standard bandwidth and the second standard bandwidth.
10. The base station of claim 9,
the first standard bandwidth is a main carrier, and the second standard bandwidth is an auxiliary carrier;
the second standard bandwidth comprises a first part and a second part, wherein the second part is coincident with the main carrier;
the bandwidth range of the non-standard bandwidth is equal to the sum of the bandwidth ranges of the first standard bandwidth and the first part of the second standard bandwidth.
11. The base station of any one of claims 8-10, further comprising a SIB messaging module, wherein:
an SIB message sending module, configured to send a special system information block SIB message to a user equipment after the bandwidth aggregation module aggregates two segments of standard bandwidths into a segment of non-standard bandwidth, where the special SIB message includes flexible bandwidth configuration information, and the flexible bandwidth configuration information includes auxiliary carrier center frequency point information and bandwidth information; and then instructing the resource allocation module to execute the operation of allocating the corresponding part in the non-standard bandwidth resource to different user terminals in a scheduling mode.
12. The base station of claim 11, wherein the resource allocation unit comprises a first identification submodule, a second identification submodule, and a resource allocation submodule, wherein:
the first identification submodule is used for judging whether the user terminal supports the flexible bandwidth configuration function or not;
the second identification submodule is used for continuously judging whether the user terminal supports the capability information of the standard bandwidth or the capability information of the full bandwidth under the condition that the user terminal supports the flexible bandwidth configuration function according to the judgment result of the first identification submodule;
the resource allocation submodule is used for providing the first standard bandwidth resource for the user terminal under the condition that the user terminal does not support the flexible bandwidth configuration function according to the judgment result of the first identification submodule; according to the judgment result of the second identification submodule, under the condition that the user terminal supports the capability information of the standard bandwidth, after the user terminal shifts from the main carrier to the auxiliary carrier, the second standard bandwidth resource is provided for the user terminal; and according to the judgment result of the second identification submodule, under the condition that the user terminal supports the full-bandwidth capability information, providing the whole non-standard bandwidth resource for the user terminal.
13. A user terminal, comprising a network access module, a configuration information receiving module and an operating band shifting module, wherein:
the network access module is used for accessing a base station through a main carrier, wherein the base station aggregates a first standard bandwidth and a second standard bandwidth into a section of nonstandard bandwidth, the first standard bandwidth and the second standard bandwidth are partially overlapped, the first standard bandwidth is the main carrier, and the second standard bandwidth is an auxiliary carrier;
the system comprises a configuration information receiving module, a base station and a resource allocation module, wherein the configuration information receiving module is used for receiving a special System Information Block (SIB) message sent by the base station, the special SIB message comprises flexible bandwidth configuration information, the flexible bandwidth configuration information comprises auxiliary carrier central frequency point information and bandwidth information, and the base station is used for acquiring user terminal capability information and allocating corresponding parts in non-standard bandwidth resources to different user terminals according to the user terminal capability information;
and the working frequency band shifting module is used for shifting the working frequency band from the main carrier to the auxiliary carrier to work after the flexible bandwidth configuration information is received by the configuration information receiving module.
14. A user terminal, comprising a network access module, a configuration information receiving module and an operating frequency band determining module, wherein:
the network access module is used for accessing the base station through the main carrier, wherein the base station aggregates a first standard bandwidth and a second standard bandwidth into a section of nonstandard bandwidth, the first standard bandwidth and the second standard bandwidth are partially overlapped, the first standard bandwidth is the main carrier, and the second standard bandwidth is the auxiliary carrier;
the system comprises a configuration information receiving module, a base station and a resource allocation module, wherein the configuration information receiving module is used for receiving a special System Information Block (SIB) message sent by the base station, the special SIB message comprises flexible bandwidth configuration information, the flexible bandwidth configuration information comprises auxiliary carrier central frequency point information and bandwidth information, and the base station is used for acquiring user terminal capability information and allocating corresponding parts in non-standard bandwidth resources to different user terminals according to the user terminal capability information;
and the working frequency band determining module is used for working in the whole bandwidth range of the nonstandard bandwidth after the configuration information receiving module receives the flexible bandwidth configuration information.
15. A flexible bandwidth configuration system comprising a user terminal and a base station according to any one of claims 8-12.
16. The system of claim 15,
the user terminal is a user terminal according to claim 13 or 14.
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| CN110831210B (en) * | 2018-08-09 | 2022-07-19 | 中国移动通信有限公司研究院 | Resource allocation method, terminal, network equipment and computer storage medium |
| CN112654085A (en) * | 2019-10-11 | 2021-04-13 | 上海华为技术有限公司 | Carrier configuration method and related device |
| CN111526600B (en) * | 2020-04-21 | 2022-03-15 | 达闼机器人有限公司 | Network access method, device, storage medium, terminal and network equipment |
| CN115866616A (en) * | 2021-08-25 | 2023-03-28 | 华为技术有限公司 | Resource allocation method and communication device |
| CN116056095A (en) * | 2021-10-28 | 2023-05-02 | 中兴通讯股份有限公司 | Carrier cell establishment method, electronic device and computer readable storage medium |
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