WO2013029427A1

WO2013029427A1 - Method and device for determining rbg after configuring segment carrier

Info

Publication number: WO2013029427A1
Application number: PCT/CN2012/078413
Authority: WO
Inventors: 苟伟; 陈华夏; 夏树强; 金圣峣; 左志松; 戴博
Original assignee: 中兴通讯股份有限公司
Priority date: 2011-09-01
Filing date: 2012-07-10
Publication date: 2013-03-07
Also published as: CN102970708B; CN102970708A

Abstract

A method and a device for determining a RBG after configuring a segment carrier. The method comprises: after an eNB configures a segment carrier, the eNB and a UE determining that the size of an RBG is equal to the size of a RBG corresponding to a backward compatible carrier matching with the segment carrier; and according to the determined size of the RBG, performing RBG division by regarding an RB of the backward compatible carrier and an RB of the segment carrier as a whole or as two parts, and numbering an RBG of the backward compatible carrier and an RBG of the segment carrier obtained through division.

Description

Method and device for determining RBG after configuring slice carrier

The present invention relates to the field of wireless communications, and in particular, to a method and an apparatus for determining an RBG after configuring a fragment carrier. Background technique

With the development of the mobile communication industry and the growing demand for mobile data services, people are increasingly demanding the speed and quality of service (QoS) of mobile communications, so there is no third-generation mobile communication. Before the large-scale commercialization, research and development work on the next generation mobile communication system has begun, and the typical one is the Long Term Evolution (LTE) project initiated by the 3rd Generation Partnership Project. The highest carrier bandwidth that the LTE system can provide is 20MHz (megahertz). With the further evolution of the network, LTE-Advanced (LTE-A, LTE-Advanced) can provide carrier bandwidth of up to 100MHz and support more flexible. Higher quality communication, while the LTE system has good backward compatibility. In an LTE-A system, there are multiple component carriers (CCs, Component Carriers). One LTE terminal can only work on one backward compatible CC, while a more powerful LTE-A terminal can simultaneously on multiple CCs. Transfer.

In the LTE system, when the uplink carrier interval is 15 kHz, one subframe in the time domain and 12 consecutive or non-contiguous subcarriers in the frequency domain are used as one resource block (RB). The RB is divided into two types: physical resource block (PRB) and virtual resource block (VRB) according to whether the frequency is consecutively, and is the smallest resource unit for uplink and downlink scheduling.

When the enhanced base station (eNB) performs resource scheduling, the resource scheduling information is transmitted to the user equipment (UE, User Equipment) by using downlink control information (DCI). The physical channel through which the DCI is transmitted is called a physical downlink control channel (PDCCH, Physical Downlink Control CHannel). The UE interprets the resource through the DCI type of the PDCCH. The content of the source allocation field. The indication of the resource is different depending on the type of DCI. In each PDCCH, the resource allocation field consists of two parts: a resource allocation header and resource block allocation information. There are three types of resource allocation: Type 0, Type 1 and Type 2. Type 0 and Type 1 use the same number of bits. When transmitting through DCI Type 1, 2 2A, 2B, 2C, both have the exact same format. At this time, the first bit is allocated by the resource allocation, and 0 indicates type 0. , 1 means type 1. The DCI formats 1A, IB, 1C, and 1D are used for type 2 transmission. The resource allocation type 0/1 uses the PRB to indicate the resource, and the resource allocation type 2 uses the VRB to indicate the allocated resource.

When the eNB performs resource scheduling, the following situations exist:

1. The DCI is transmitted through the types 1, 2, 2A, 2B, 2C, and the resource allocation header bit value is 0: In the resource allocation type 0, the resource block allocation information includes a resource block group allocation bitmap, and the resource block group allocation The bitmap indicates the resource block group (RBG) information allocated by the eNB to the specific UE; the size P of the RBG depends on the carrier bandwidth of the LTE system, and the correspondence relationship is as shown in the table.

Table 1

The number of resource groups is determined by the carrier bandwidth and resource group size of the LTE system, that is, Λ^ _σ = "Λ^ / Ρ , which contains "N^ / resource groups of size Ρ, and a size of

A3⁄4 - P. LA / P" resource block group, and the resource block group is numbered from the low frequency, and the RBG number is mapped from 0 to N 1 to the most significant bit to the least significant bit, respectively.

2. The DCI is transmitted by type 1, 2, 2A, 2B, 2C, and the resource allocation header bit value is 1: In resource allocation type 1, the resource block allocation information is within the RBG subset, indicating an allocated RB for a scheduled UE. The scheme is to group PRB according to Table 1, each RBG contains P physical resource blocks, and these resource blocks are numbered from 0 to P-1, and a physical resource of number p in a continuous RBG is selected to form an RBG subset. The eNB performs resource allocation to the UE within the RBG subset.

In resource allocation type 1, the resource block allocation information is divided into three fields: The first field uses "i _g2 (p)] bits to mark the position of the selected RB in the RBG, and the second field uses 1 bit to mark whether Using the offset, the third field contains a bitmap, each bit of the bitmap being used to represent one PRB in the selected RBG subset. The resource block is mapped onto the bitmap from the most significant bit as the frequency increases. The size of the bitmap is defined as: Λ^ ^ΡΕ1 = "Λ /Ρ] - "lg _{2 (} P)] - 1 Since the size of the bitmap in this method is smaller than "i _g2 (p)l , the bitmap cannot cover all RBG, when RBG is numbered, an offset is required. In the resource block allocation information of this type, the second field tag uses offset. When the field is 0, A _shift (p) = 0 does not use offset. At this time, the number of the resource block starts from the lowest frequency and increases from zero. When the field is 1, the resource block number is the imported offset.

, where A ⁵ — (p) represents the number of RBs in the subset of resource groups p, which can be obtained by the following formula: mod

_{Λ r} RBG subset

WRB (P) mod mod

At the UE side, by the PDCCH decoding, the UE obtains the value of the ith bit in the bitmap. According to the flag p, the relocation of the RB is completed by the following formula:

RBG subset /

(P) ^: P ² + p - P + (i + A _sMt (p)) mod P

P

3 DCI is transmitted by type 1A 1B 1C ID, and resource allocation type 2 is used: The resource allocation type 0/1 is to use the PRB to indicate the resource, and the resource allocation type 2 is to use the VRB to indicate the allocated resource. The advantage of using VRB is that the resource allocation can be used for continuous allocation, and then the VRB is allocated to the PRB in a local or distributed manner, and the overhead of signaling bits is also saved.

As can be seen from Table 1, the size of the carrier bandwidth determines the size of the RBG, which in turn determines

The number of resource allocation bits in the DCI and the bit length of the DCI as a whole.

The Carrier Segment is an incompatible carrier. The fragmented carrier cannot be used independently. It can only be used as part of the bandwidth of a backward compatible carrier to increase the transmission capability of the backward compatible carrier. The carrier segments, if specified, are defined as the bandwidth extensions of a backwards compatible component carrier (no larger than 110 RBs in total) and a mechanism To utilize frequency resources in case new transmission bandwidths are needed in a backwards compatible way complementing carrier aggregation means ).

When the fragment carrier is configured, its characteristics are considered: After adding the fragment carrier, one still is used.

The PDCCH indicates resources of the backward compatible carrier and the fragment carrier as a whole. The addition of the fragmented carrier will increase the total number of PRBs, which may result in different RBGs corresponding to the number of PRBs of the backward compatible carrier, the fragmented carrier, and the aggregated carrier, that is, the lower version UE and the fragment carrier are configured. The RBG size determined by the new version of the UE according to the number of PRBs is inconsistent. Since the existing standard does not support the allocation of resources for two or more UEs of different RBG sizes at the same time, after configuring the fragment carrier, it will be faced with how to determine the RBG size to explicitly indicate the problem of resource allocation information.

Summary of the invention

In view of this, the main purpose of the embodiments of the present invention is to provide a method and a device for determining the size and number of RBGs after configuring a fragment carrier, so that the new version UE can use the fragment carrier more conveniently, and the fragment carrier is minimized. The impact on the new system when bandwidth is small. An embodiment of the present invention provides a method for determining an RBG after a fragment carrier is configured, including: after the eNB configures a fragment carrier for the UE, the eNB and the UE determine that the RBG size is equal to the backward compatibility with the fragment carrier. The RBG size corresponding to the carrier;

According to the determined RBG size, the RB of the backward compatible carrier and the RB of the fragment carrier are regarded as a whole for RBG division or RB of the backward compatible carrier and the RB of the fragment carrier respectively The RBG is divided, and the RBG of the backward compatible carrier and the RBG of the fragment carrier are numbered.

In the above method, the step of dividing the RB of the backward compatible carrier and the RB of the fragment carrier as a whole to perform RBG division includes:

The RB of the backward compatible carrier and the RB of the fragment carrier are regarded as a whole, and the RBG is divided according to the determined unified RBG size, and each of the divided RBGs only includes the backward compatible carrier. RB, or an RB including only the fragment carrier, or an RB including the backward compatible carrier and an RB of the fragment carrier.

In the above method, when the total number of RBs of the backward compatible carrier and the RB of the fragment carrier is not an integer multiple of the RBG size, the number of RBs included in one RBG is smaller than the RBG size.

In the above method, the step of numbering the RBG of the backward compatible carrier and the RBG of the fragment carrier includes:

Starting from 0, the divided RBGs of the backward compatible carriers are numbered, starting from the maximum value of the RBG number of the backward compatible carrier, according to the frequency band of the fragment carrier from low frequency to high frequency or high frequency to low frequency. The RBGs of the fragment carriers are numbered.

In the above method, the RB of the backward compatible carrier and the RB of the fragment carrier are respectively divided into:

The RB of the backward compatible carrier and the RB of the fragment carrier are regarded as two parts, and the RBG is divided according to the determined unified RBG size, and only the backward compatible carrier is included in each divided RBG. RB, or an RB that only includes the fragment carrier, and does not include the backward cum The RB of the carrier and the RB of the fragment carrier.

In the above method,

When the number of RBs included in the backward compatible carrier and/or the fragment carrier is not an integer multiple of the RBG size, one of the RBGs of the backward compatible carrier and/or the RBs included in one of the RBGs of the fragment carrier The number is less than the RBG size.

In the above method, the step of numbering the divided RBG of the backward compatible carrier and the RBG of the fragment carrier includes:

Starting from 0, numbering the divided RBGs of the backward compatible carrier, and starting from the maximum value of the RBG number of the backward compatible carrier, according to the frequency band of the fragment carrier from low frequency to high frequency or high Frequency to low frequency, the RBGs of the fragment carriers are sequentially numbered.

Starting from 0, the divided RBGs of the backward compatible carriers are numbered, and starting from 0, the fragment carriers are sequentially sequenced according to the frequency band of the fragment carrier from low frequency to high frequency or high frequency to low frequency. The RBG is numbered.

The embodiment of the present invention further provides a device for determining an RBG size and number after configuring a fragment carrier, including: a configuration module, a size determining module, a dividing module, and a numbering module;

a configuration module, configured to configure a fragment carrier for the UE;

The size determining module is configured to: after the configuration module configures the fragment carrier for the UE, determine that the RBG size is uniformly equal to the RBG size corresponding to the backward compatible carrier used by the fragment carrier pair; and the dividing module is set to be determined according to the determined RBG size And dividing the RB of the backward compatible carrier and the RB of the fragment carrier as one whole or two parts to perform RBG division;

And a numbering module, configured to number the divided RBG of the backward compatible carrier and the RBG of the fragment carrier.

In the above apparatus, the dividing module is configured to set the backward compatible carrier in the following manner The RB and the RB of the fragment carrier are regarded as a whole for RBG division:

In the above device, the numbering module is set to:

In the above apparatus, the dividing module is configured to face the backward compatible carrier in the following manner

The RB and the RB of the fragment carrier perform RBG division separately:

The RB of the backward compatible carrier and the RB of the fragment carrier are regarded as two parts, and the RBG is divided according to the determined unified RBG size, and only the backward compatible carrier is included in each divided RBG. The RB, or the RB including only the fragment carrier, does not include the RB of the backward compatible carrier and the RB of the fragment carrier.

In the above device, the numbering module is set to:

Embodiments of the present invention also provide an enhanced base station that includes the apparatus as described above. The method and device for determining the RBG size and number after the fragment carrier is provided in the embodiment of the present invention. After the eNB configures the fragment carrier for the UE, the eNB and the UE determine that the RBG size is equal to the paired with the fragment carrier. RBG size corresponding to the compatible carrier; according to the determined RBG size, the RB of the backward compatible carrier and the RB of the fragment carrier are regarded as one whole or two parts for RBG division, and after the division The number of the RBGs of the compatible carrier and the RBG of the fragment carrier are numbered, and after the fragment carrier is configured, the RBG size and the number can be determined, so that the UE can use the fragment carrier more conveniently, and the bandwidth of the fragment carrier is minimized. For the lower-level UE, the operation of the backward compatible carrier can be guaranteed, and the scheduling rules of the base station are not affected. In summary, the technical solution of the present invention can solve the RBG size of different versions of the UE. The problem of resource allocation confusion caused by unification is beneficial to the compatibility of LTE-Advanced and LTE, and the implementation of LTE-Advanced system.

BRIEF abstract

1 is a schematic flow chart of a method for determining an RBG size and number after configuring a fragment carrier according to the present invention;

2 is a schematic diagram of an RBG numbering according to Embodiment 1 of the present invention;

3 is a schematic diagram of an RBG numbering according to Embodiment 2 of the present invention;

4 is a schematic diagram of an RBG numbering according to Embodiment 3 of the present invention;

FIG. 5 is a schematic diagram of an RBG numbering according to Embodiment 4 of the present invention; FIG.

6 is a schematic diagram of an RBG numbering according to Embodiment 5 of the present invention;

7 is a schematic diagram of an RBG numbering according to Embodiment 6 of the present invention;

8 is a schematic diagram of an RBG numbering according to Embodiment 7 of the present invention;

FIG. 9 is a schematic structural diagram of an apparatus for determining an RBG size and number after configuring a fragment carrier according to the present invention. Preferred embodiment of the invention

In the embodiment of the present invention, after the eNB configures the fragment carrier for the UE, the eNB and the UE determine that the RBG size is equal to the RBG size corresponding to the backward compatible carrier used by the fragment carrier pair; according to the determined RBG size, The RB of the backward compatible carrier and the RB of the fragment carrier are regarded as one whole or two parts for RBG division, and the RBG of the backward backward compatible carrier and the RBG of the fragment carrier are numbered. .

The embodiments of the present invention are described in detail below with reference to the accompanying drawings. It should be noted that the features in the embodiments and the embodiments in the present application may be arbitrarily combined with each other without conflict. .

FIG. 1 is a schematic flowchart of a method for determining an RBG size and number after configuring a fragment carrier according to an embodiment of the present invention. As shown in FIG. 1, the method includes the following steps:

Step 101: After the eNB configures the fragment carrier for the UE, the eNB and the UE determine that the RBG size is equal to the RBG size corresponding to the backward compatible carrier used by the fragment carrier pairing;

Specifically, the mapping table of the RBG size and the carrier bandwidth shown in Table 1 is used. After the eNB configures the fragment carrier for the new version of the UE, the eNB and the UE determine that the RBG size is equal to and equal to the score. The RBG size corresponding to the backward compatible carrier used by the chip carrier pairing has the following advantages: When the bandwidth of the fragment carrier is added to the bandwidth of the backward compatible carrier used with the pair, the new bandwidth is based on the original R10 standard. The RBG size determined by the rule can continue to use the existing DCI size for scheduling when the RBG size is determined by the bandwidth of the backward compatible carrier only. It is not necessary to design a new DCI size, and the existing DCI can be used to the maximum extent. Scheduling mechanisms and rules to simplify design.

Step 102: According to the determined RBG size, the RB of the backward compatible carrier and the RB of the fragment carrier are regarded as one whole or the RB of the backward compatible carrier and the RB of the fragment carrier are regarded as two parts for performing RBG division. And arranging the RBGs of the divided backward compatible carriers and the RBGs of the fragment carriers; specifically, after determining the RBG size, performing RBG division according to the determined RBG size, and numbering the divided RBGs, The invention includes three division methods and corresponding numbering parties Law:

The first one is to treat the RBs of the backward compatible carrier and the RBs of the fragment carrier as a whole, and perform RBG division according to the determined unified RBG size, and each RBG after the division includes only the RBs of the backward compatible carrier. Or an RB including only a fragment carrier, or an RB including a backward compatible carrier and a fragment carrier; when the total number of RBs of the backward compatible carrier and the fragment carrier is not an integer multiple of the determined RBG size, The number of RBs included in one of the RBGs is allowed to be smaller than the RBG size. After the RBG division is completed, the RBGs of the backward compatible carriers are continued to follow the provisions of 3GPP Release-10, and the RBGs of the backward backward compatible carriers are numbered starting from 0. The RBG of the divided fragment carrier continues to be numbered from the maximum value of the RBG number of the backward compatible carrier, and the RBG of the fragment carrier may be numbered sequentially according to the frequency band of the fragment carrier from low frequency to high frequency, or may be divided into The frequency band of the chip carrier sequentially numbers the RBGs of the fragment carriers from high frequency to low frequency; wherein, the RBs of the backward compatible carrier and the RBs of the fragment carrier are regarded as one whole, and the points are The chip carrier may be one or more. When multiple slice carriers are regarded as a whole with a backward compatible carrier, the RBG division method and numbering method are also followed, according to the frequency band of the slice carrier from low frequency to high frequency. The RBGs of the fragment carriers are numbered, and the RBGs of the fragment carriers may be sequentially numbered according to the frequency band of the fragment carrier from high frequency to low frequency;

The second method is to treat the RB of the backward compatible carrier and the RB of the fragment carrier as two parts, and perform RBG division according to the determined unified RBG size, and each RBG in the divided RBG only includes the RB of the backward compatible carrier. , or an RB that only includes a fragment carrier, cannot include both the RB of the backward compatible carrier and the RB of the fragment carrier; when the number of RBs included in the backward compatible carrier and/or the fragment carrier is not an integer multiple of the determined RBG size The number of RBs included in one of the RBGs of one of the RBGs and/or the fragmented carriers of the backward compatible carrier is less than the RBG size, as specified in 3GPP Release-10;

After the RBG division is completed, the RBG for the backward compatible carrier continues to follow the provisions of 3GPP Release-10, and the RBGs of the divided backward compatible carriers are numbered starting from 0, and the divided fragments are segmented. The RBG of the carrier continues to be numbered from the maximum value of the RBG number of the backward compatible carrier, and the RBG of the fragment carrier may be numbered sequentially according to the frequency band of the fragment carrier from low frequency to high frequency, or may be high according to the frequency band of the fragment carrier. The RBGs of the fragment carriers are numbered sequentially from the frequency to the low frequency; wherein the fragment carriers may be one or more, and if the multiple fragment carriers and one backward compatible carrier are regarded as two parts, the RBG is also followed. The dividing method and the numbering method sequentially number the RBGs of the fragment carriers according to the frequency bands of the fragment carriers from low frequency to high frequency, or may sequentially perform the RBGs of the fragment carriers according to the frequency bands of the fragment carriers from high frequency to low frequency. Numbering;

The third type is to treat the RB of the backward compatible carrier and the RB of the fragment carrier as two parts, and perform RBG division according to the determined unified RBG size, and each RBG in the divided RBG only includes the RB of the backward compatible carrier. , or an RB that only includes a fragment carrier, cannot include both the RB of the backward compatible carrier and the RB of the fragment carrier; when the number of RBs included in the backward compatible carrier and/or the fragment carrier is not an integer multiple of the determined RBG size The number of RBs included in one of the RBGs of one of the RBGs and/or the fragmented carriers of the backward compatible carrier is less than the RBG size, as specified in 3GPP Release-10;

After the RBG division is completed, the RBG for the backward compatible carrier continues to follow the provisions of 3GPP Release-10, and the RBG of the divided backward compatible carrier is numbered starting from 0. For the RBG of the fragment carrier, the 3GPP Release is also used. For the specification of -10, the RBG number of the divided fragment carrier is started from 0, and the RBG of the fragment carrier may be numbered sequentially from the low frequency to the high frequency from 0 to the frequency band of the fragment carrier, or may be fragmented according to the fragment. The frequency band of the carrier numbers the RBGs of the fragment carriers from the high frequency to the low frequency from 0; wherein the fragment carriers may be one or more, if it is multiple fragment carriers and a backward compatible carrier is regarded as In two parts, the RBG division method and numbering method also number the RBG of the fragment carrier from the low frequency to the high frequency from 0 to the frequency band of the fragment carrier, or from the high frequency to the low frequency according to the frequency band of the fragment carrier. Start numbering the RBGs of the slice carrier.

In the following embodiments, at least two component carriers that can be aggregated are configured in the LTE-A system, One of them is a 5 MHz backward compatible carrier, including 25 RBs, and at least one 1.4 MHz fragment carrier, each fragment carrier containing 6 RBs.

Embodiment 1

In this embodiment, the new version of the UE aggregates a 5 MHz backward compatible carrier and a 1.4 MHz fragment carrier. When performing resource allocation, the mapping table of the carrier bandwidth and the RBG size in the R8 is used, as shown in Table 1. The RBG size of the 5 MHz backward compatible carrier is 2, and the RBG size corresponding to the 1.4 MHz fragment carrier is 1. According to the division method and the numbering method of the present invention: the unified RBG size after aggregation is before and after the configuration of the fragment carrier. The RBG size corresponding to the compatible carrier, that is, the RBG size corresponding to the fragment carrier determined to be 1.4 MHz is also 2;

After determining the RBG size, the RBG of the backward compatible carrier and the RBG of the fragment carrier are consecutively numbered, specifically: the RB of the backward compatible carrier and the RB of the fragment carrier are regarded as a whole, and the RBG is divided according to the determined RBG size. The numbering method is as follows: The RBG of the divided backward compatible carrier is numbered starting from 0 according to the provisions of 3GPP Release-10, and the RBG of the divided fragment carrier continues to be numbered from the maximum value of the RBG number of the backward compatible carrier. The rule may be that the RBGs of the fragment carriers are numbered sequentially according to the frequency band of the fragment carrier from the low frequency to the high frequency, or the RBGs of the fragment carriers are sequentially numbered according to the frequency band of the fragment carrier from the high frequency to the low frequency; According to the provisions of 3GPP Release-10, the RBGs of the fragment carriers are numbered sequentially according to the frequency band of the fragment carrier from low frequency to high frequency. As shown in FIG. 2, the RBG numbers of the backward compatible carriers are from 0 to 12, respectively. The RBG number of the slice carrier is from 12 to 15, and in the 12th RBG, both the RB of the backward compatible carrier and the RB of the fragment carrier are included.

Embodiment 2

In this embodiment, the new version of the UE aggregates a 5 MHz backward compatible carrier and a 1.4 MHz fragment carrier; when performing resource allocation, the mapping table of the carrier bandwidth and the RBG size in the R8 is used, as shown in Table 1. The 5 MHz backward compatible carrier corresponds to an RBG size of 2, and the 1.4 MHz fragment carrier corresponds to an RBG size of 1, according to the partitioning method and numbering method of the present invention: The RBG size of the backward compatible carrier is RBG size of the backward compatible carrier, that is, the RBG size corresponding to the 1.4 MHz fragment carrier is also 2;

After determining the RBG size, the RBG of the backward compatible carrier and the RBG of the fragment carrier are consecutively numbered, specifically: the RB of the backward compatible carrier and the RB of the fragment carrier are regarded as two parts, and are respectively divided according to the determined RBG size. RBG; if the number of RBs of the compatible carrier and/or the number of RBs of the fragment carrier is not an integer multiple of the RBG size, the number of RBs included in one of the RBGs of the backward compatible carrier and/or one of the RBGs of the fragment carrier is allowed to be smaller than RBG size; The specific numbering method is: The RBG of the backward compatible carrier is numbered starting from 0 according to the provisions of 3GPP Release-10, and the RBG of the fragment carrier continues to be numbered from the maximum value of the RBG number of the backward compatible carrier, from low frequency to high. The RBGs of the fragment carriers are numbered sequentially, or the RBGs of the fragment carriers are sequentially numbered from high frequency to low frequency. In this embodiment, the fragment carriers are sequentially sequenced from low frequency to high frequency according to the provisions of 3GPP Release-10. The RBGs are numbered. As shown in FIG. 3, the RBG numbers of the backward compatible carriers are from 0 to 12, and wherein the 12th RBG includes only one RB of the backward compatible carrier, and the fragmentation is performed. RBG wave numbers from 13 to 15.

Embodiment 3

In this embodiment, the new version of the UE aggregates a 5 MHz backward compatible carrier and a 1.4 MHz fragment carrier; when performing resource allocation, the mapping table of the carrier bandwidth and the RBG size in the R8 is used, as shown in Table 1. The RBG size of the 5 MHz backward compatible carrier is 2, and the RBG size corresponding to the 1.4 MHz fragment carrier is 1. According to the division method and the numbering method of the present invention: the unified RBG size after aggregation is before and after the configuration of the fragment carrier. The RBG size corresponding to the RBG size of the compatible carrier, that is, the 1.4 MHz fragment carrier is also 2;

After determining the RBG size, the RBGs of the backward compatible carrier and the RBG of the wave fragment carrier are respectively numbered, specifically: the RB of the backward compatible carrier and the RB of the fragment carrier are regarded as two parts, respectively according to the determined RBG size. RBG is divided; if the number of RBs of the compatible carrier and/or the number of RBs of the fragment carrier is not an integer multiple of the RBG size, one of the RBGs and/or slice carriers of the backward compatible carrier is allowed. The number of RBs included in one of the RBGs of the wave is smaller than the RBG size; the specific numbering rule is: The RBG of the backward compatible carrier is numbered starting from 0 according to 3GPP Release-10, and the RBG of the fragment carrier is from the RBG number of the backward compatible carrier. The maximum value continues to be numbered, and the RBGs of the fragment carriers are numbered sequentially from low frequency to high frequency, or the RBGs of the fragment carriers are sequentially numbered from high frequency to low frequency; in this embodiment, the provisions of 3GPP Release-10 are followed. The RBGs of the fragment carriers are numbered sequentially from the low frequency to the high frequency number. As shown in FIG. 4, the RBG numbers of the backward compatible carriers are from 0 to 12, and wherein the 12th RBG includes only one of the backward compatible carriers. RB, the RBG number of the fragment carrier is from 0 to 2.

Embodiment 4

In this embodiment, the new version UE aggregates using a 10 MHz backward compatible carrier and one

1.4MHz fragment carrier; In the resource allocation, the mapping table of carrier bandwidth and RBG size in R8 is used, as shown in Table 1, the RBG size corresponding to the 10MHz backward compatible carrier is 3, 1.4MHz fragment carrier. The corresponding RBG size is 1, according to the partitioning method and the numbering method of the present invention: the unified RBG size after aggregation is the RBG size of the backward compatible carrier before the fragment carrier is configured, that is, the RBG size corresponding to the 1.4 MHz fragment carrier is also Is 3;

After determining the RBG size, the RBG of the backward compatible carrier and the RBG of the fragment carrier are consecutively numbered, specifically: the RB of the backward compatible carrier and the RB of the fragment carrier are regarded as a whole, and the RBG is divided according to the determined RBG size. The specific numbering rule is: The RBG of the backward compatible carrier is numbered starting from 0 according to 3GPP Release-10, and the RBG of the fragment carrier continues to be numbered from the maximum value of the RBG number of the backward compatible carrier, from the low frequency to the high frequency. The RBGs of the fragment carriers are numbered, or the RBGs of the fragment carriers are sequentially numbered from high frequency to low frequency. In this embodiment, the RBGs of the fragment carriers are sequentially sequenced from the low frequency to the high frequency number according to the provisions of 3GPP Release-10. Numbering, as shown in FIG. 5, the RBG number of the backward compatible carrier is from 0 to 17, and the RBG number of the fragment carrier is from 17 to 15, and the RB of the 17th RBG including the backward compatible carrier also includes the RBG number. The RB of the slice carrier. Embodiment 5

In this embodiment, the new version of the UE aggregates a 10 MHz backward compatible carrier and a 1.4 MHz fragment carrier; when performing resource allocation, the mapping table of the carrier bandwidth and the RBG size in the R8 is used, as shown in Table 1, The RBG size of the 5 MHz backward compatible carrier is 3, and the RBG size corresponding to the 1.4 MHz fragment carrier is 1. According to the division method and the numbering method of the present invention: the unified RBG size after aggregation is before and after the configuration of the fragment carrier. The RBG size corresponding to the RBG size of the compatible carrier, that is, the 1.4 MHz fragment carrier is also 3;

After determining the RBG size, the RBG of the backward compatible carrier and the RBG of the fragment carrier are consecutively numbered, specifically: the RB of the backward compatible carrier and the RB of the fragment carrier are regarded as two parts, and are respectively divided according to the determined RBG size. RBG; if the number of RBs of the compatible carrier and/or the number of RBs of the fragment carrier is not an integer multiple of the RBG size, the number of RBs included in one of the RBGs of the backward compatible carrier and/or one of the RBGs of the fragment carrier is allowed to be smaller than RBG size; The specific numbering rule is: The RBG of the backward compatible carrier is numbered starting from 0 according to 3GPP Release-10, and the RBG of the fragment carrier continues to be numbered from the maximum value of the RBG number of the backward compatible carrier, from low frequency to high frequency. The RBGs of the fragment carriers are sequentially numbered, or the RBGs of the fragment carriers are sequentially numbered from high frequency to low frequency. In this embodiment, the fragment carriers are sequentially sequenced from low frequency to high frequency according to the provisions of 3GPP Release-10. The RBGs are numbered. As shown in FIG. 6, the RBG numbers of the backward compatible carriers are from 0 to 16, and wherein the 16th RBG includes only 2 RBs of the backward compatible carrier, and the fragment carrier The RBG numbers range from 17 to 18.

Embodiment 6

In this embodiment, the new version of the UE aggregates a 10 MHz backward compatible carrier and a 1.4 MHz fragment carrier; when performing resource allocation, the mapping table of the carrier bandwidth and the RBG size in the R8 is used, as shown in Table 1, The RBG size of the 10 MHz backward compatible carrier is 3, and the RBG size corresponding to the 1.4 MHz fragment carrier is 1. According to the division method and the numbering method of the present invention: the unified RBG size after aggregation is before and after the configuration of the fragment carrier. RBG size to compatible carrier, ie 1.4MHz The RBG size corresponding to the fragment carrier is also 3;

After determining the RBG size, the RBG of the backward compatible carrier and the RBG of the fragment carrier are respectively numbered, specifically: the RB of the backward compatible carrier and the RB of the fragment carrier are regarded as two parts, and are respectively divided according to the determined RBG size. RBG; if the number of RBs of the compatible carrier and/or the number of RBs of the fragment carrier is not an integer multiple of the RBG size, the number of RBs included in one of the RBGs of the backward compatible carrier and/or one of the RBGs of the fragment carrier is allowed to be smaller than RBG size; The specific numbering rule is: The RBG of the backward compatible carrier is numbered starting from 0 according to 3GPP Release-10, and the RBG of the fragment carrier continues to be numbered from the maximum value of the RBG number of the backward compatible carrier, from low frequency to high frequency. The RBGs of the fragment carriers are sequentially numbered, or the RBGs of the fragment carriers are sequentially numbered from high frequency to low frequency. In this embodiment, the fragment carriers are sequentially sequenced from low frequency to high frequency according to the provisions of 3GPP Release-10. The RBGs are numbered. As shown in FIG. 7, the RBG numbers of the backward compatible carriers are from 0 to 16, and wherein the 16th RBG includes only 2 RBs of the backward compatible carrier, and the fragment carrier The RBG number is from 0 to 1.

Example 7

In this embodiment, the new version UE aggregates using a 10 MHz backward compatible carrier and two

1.4MHz fragment carrier; two of the fragment carriers are located on both sides of the backward compatible carrier, as shown in Figure 8. In the resource allocation, the mapping table of carrier bandwidth and RBG size in R8 is used, as shown in Table 1. As shown, the RBG size corresponding to the 10 MHz backward compatible carrier is 3, and the RBG size corresponding to the 1.4 MHz fragment carrier is 1. According to the partitioning method and the numbering method of the present invention: the unified RBG size after aggregation is the configured fragment carrier. The RBG size of the front and backward compatible carriers, that is, the RBG size corresponding to the 1.4 MHz fragment carrier is also 3;

After determining the RBG size, the RBG of the backward compatible carrier and the RBG of the fragment carrier are respectively numbered, specifically: the RB of the backward compatible carrier and the RB of the fragment carrier are regarded as two parts, and are respectively divided according to the determined RBG size. RBG; if the number of RBs of the compatible carrier and/or the number of RBs of the fragment carrier is not an integer multiple of the RBG size, one of the RBGs and/or slice carriers of the backward compatible carrier is allowed. The number of RBs included in one of the RBGs of the wave is smaller than the RBG size; the specific numbering rule is: The RBG of the backward compatible carrier is numbered starting from 0 according to the provisions of 3GPP Release-10, and the RBG of the fragmented carrier is the RBG number of the backward compatible carrier. The maximum value continues to be numbered, and the RBGs of the fragment carriers are numbered sequentially from low frequency to high frequency, or the RBGs of the fragment carriers are sequentially numbered from high frequency to low frequency; in this embodiment, the provisions of 3GPP Release-10 are followed. The RBGs of the fragment carriers are numbered sequentially from the low frequency to the high frequency. If more than two fragment carriers are configured, the fragment carriers are sequentially sequenced according to the frequency band of the fragment carrier from low to high or high to low. The RBGs are numbered. In this embodiment, the RBGs of the fragment carriers are numbered sequentially according to the frequency bands of the fragment carriers. As shown in FIG. 8, the RBG numbers of the backward compatible carriers are from 0 to 16. And wherein the 16th RBG includes only 2 RBs of the backward compatible carrier, the RBG number of the slice carrier 1 is from 17 to 18, and the RBG number of the slice carrier 2 is from 19 to 20.

In order to implement the foregoing method, the embodiment of the present invention further provides a device for determining an RBG size and number after a fragment carrier, and FIG. 9 is a schematic structural diagram of an apparatus for determining an RBG size and number after configuring a fragment carrier according to the present invention. As shown in FIG. 9, the device includes: a configuration module 91, a size determining module 92, a dividing module 93, and a numbering module 94;

The configuration module 91 is configured to configure a fragment carrier for the UE;

The size determining module 92 is configured to: after the configuration module 91 configures the fragment carrier for the UE, determine that the RBG size is uniformly equal to the RBG size corresponding to the backward compatible carrier used by the fragment carrier pairing;

The dividing module 93 is configured to perform, according to the determined RBG size, the RB of the backward compatible carrier and the RB of the fragment carrier as one whole or two parts, and perform RBG division;

The numbering module 94 is configured to number the RBG of the divided backward compatible carrier and the RBG of the fragment carrier.

The dividing module 93 treats the RB of the backward compatible carrier and the RB of the fragment carrier as a whole to perform RBG division: treating the RB of the backward compatible carrier and the RB of the fragment carrier as a whole, The RBG is divided according to the determined uniform RBG size, and each RBG after the division includes only the RB of the backward compatible carrier, or the RB including only the fragment carrier, or the RB and the fragment carrier including the backward compatible carrier at the same time. RB; when the total number of RBs of the backward compatible carrier and the RB of the fragment carrier is not an integer multiple of the RBG size, the number of RBs included in one RBG is allowed to be smaller than the RBG size; the numbering module 94 pairs the backward direction The RBG of the compatible carrier and the RBG of the fragment carrier are numbered as follows: starting from 0, numbering the RBGs of the divided backward compatible carriers, starting from the maximum value of the RBG number of the backward compatible carrier, according to the frequency band of the fragment carrier From low frequency to high frequency or from high frequency to low frequency, the RBG of the slice carrier is numbered in turn.

Or, the dividing module 93 considers the RB of the backward compatible carrier and the RB of the fragment carrier as two parts to perform RBG division: the RB of the backward compatible carrier and the RB of the fragment carrier are regarded as two parts, respectively, according to The determined RBG size is divided into RBGs, and each of the divided RBGs includes only RBs of backward compatible carriers, or RBs that only include fragment carriers, and RBs and fragment carriers that do not include backward compatible carriers at the same time. RB; when the number of RBs included in the backward compatible carrier and/or the fragment carrier is not an integer multiple of the RBG size, the number of RBs included in one of the RBGs of the backward compatible carrier and/or one of the RBGs of the fragment carrier is allowed. The numbering module 94 numbers the RBGs of the divided backward compatible carriers and the RBGs of the fragment carriers: starting from 0, numbering the RBGs of the divided backward compatible carriers, and being backward compatible Starting from the maximum value of the RBG number of the carrier, the RBGs of the fragment carriers are sequentially numbered according to the frequency band of the fragment carrier from low frequency to high frequency or high frequency to low frequency; or, starting from 0 Numbering the RBG compatible carriers, and starts from 0, in accordance with the carrier frequency slice, slice sequentially numbered carriers RBG from low to high or from high frequency to low frequency.

The eNB in the embodiment of the present invention includes the apparatus as described above.

One of ordinary skill in the art will appreciate that all or a portion of the above steps may be performed by a program to instruct the associated hardware, such as a read only memory, a magnetic disk, or an optical disk. Optionally, all or part of the steps of the foregoing embodiments may also be implemented by using one or more integrated circuits. Accordingly, each module/unit in the foregoing embodiment may be used. The form of hardware implementation can also be implemented in the form of software function modules. The invention is not limited to any specific form of combination of hardware and software.

It is to be understood that the invention may be embodied in other forms and modifications without departing from the spirit and scope of the invention.

Industrial applicability

The embodiments of the present invention can solve the problem of resource allocation confusion caused by non-uniform RBG size of different versions of UEs, facilitate compatibility between LTE-Advanced and LTE, and implement LTE-Advanced system.

Claims

Claim

A method for determining a resource block group (RBG) after a slice carrier, the method includes: after an enhanced base station (eNB) configures a fragment carrier for a user equipment (UE), the eNB and the UE determine that the RBG size is equal to An RBG size corresponding to a backward compatible carrier used for pairing the fragment carrier;

Determining, according to the determined RBG size, the resource block (RB) of the backward compatible carrier and the RB of the fragment carrier as a whole, performing RBG division or RB and the fragmentation of the backward compatible carrier The RBs of the carrier perform RBG division, and the RBGs of the backward compatible carriers and the RBGs of the fragment carriers are numbered.

2. The method according to claim 1, wherein the step of dividing the RB of the backward compatible carrier and the RB of the fragment carrier as a whole to perform RBG division comprises:

3. The method of claim 2, wherein:

When the total number of RBs of the backward compatible carrier and the RB of the fragment carrier is not an integer multiple of the RBG size, the number of RBs included in one RBG is smaller than the RBG size.

The method according to claim 2 or 3, wherein the step of numbering the divided RBG of the backward compatible carrier and the RBG of the fragment carrier includes:

The method according to claim 1, wherein the step of dividing the RB of the backward compatible carrier and the RB of the fragment carrier into RBG respectively comprises: The RB of the backward compatible carrier and the RB of the fragment carrier are regarded as two parts, and the RBG is divided according to the determined unified RBG size, and only the backward compatible carrier is included in each divided RBG. The RB, or the RB including only the fragment carrier, does not include the RB of the backward compatible carrier and the RB of the fragment carrier.

6. The method of claim 5, further comprising:

When the number of RBs included in the backward compatible carrier and/or the fragment carrier is not an integer multiple of the RBG size, one of the RBGs of the backward compatible carrier and/or one of the RBGs of the fragment carrier is included The number of RBs is less than the RBG size.

The method according to claim 5 or 6, wherein the step of numbering the divided RBG of the backward compatible carrier and the RBG of the fragment carrier includes:

The method according to claim 5 or 6, wherein the step of numbering the divided RBG of the backward compatible carrier and the RBG of the fragment carrier comprises:

A device for determining a resource group of a slice carrier (RBG), the device comprising: a configuration module, a size determining module, a dividing module, and a numbering module;

The configuration module is configured to configure a fragment carrier for a user equipment (UE);

The size determining module is configured to: after the configuration module configures the fragment carrier for the UE, determine that the RBG size is uniformly equal to the RBG size corresponding to the backward compatible carrier used by the fragment carrier pair; the dividing module is set to be determined according to the determined RBG size, the RB of the backward compatible carrier and the RB of the fragment carrier are regarded as a whole for RBG division or for the backward compatible carrier The RB and the RB of the fragment carrier respectively perform RBG division;

The numbering module is configured to number the divided RBG of the backward compatible carrier and the RBG of the fragment carrier.

10. The apparatus according to claim 9, wherein the dividing module is configured to treat the RB of the backward compatible carrier and the RB of the fragment carrier as a whole in the following manner

Division of RBG:

The device according to claim 9 or 10, wherein the numbering module is configured to: start from 0 to number the RBGs of the backward compatible carriers, and RBG numbers from backward compatible carriers From the maximum value, the RBGs of the slice carriers are sequentially numbered according to the frequency band of the slice carrier from low frequency to high frequency or from high frequency to low frequency.

The apparatus according to claim 9, wherein the dividing module is configured to perform RBG division on the RB of the backward compatible carrier and the RB of the fragment carrier respectively in the following manner: The RB of the compatible carrier and the RB of the fragment carrier are regarded as two parts, and the RBG is divided according to the determined unified RBG size, and each RBG after the division includes only the RB of the backward compatible carrier, or An RB including only the fragment carrier, not including an RB of the backward compatible carrier and an RB of the fragment carrier.

13. The apparatus according to claim 12, wherein the numbering module is configured to: number the RBGs of the divided backward compatible carriers starting from 0, and number the RBGs from the backward compatible carrier Starting from the maximum value, the RBGs of the fragment carriers are sequentially numbered according to the frequency band of the fragment carrier from low frequency to high frequency or high frequency to low frequency.

14. The apparatus according to claim 12, wherein the numbering module is configured to: Starting from 0, the divided RBGs of the backward compatible carriers are numbered, and starting from 0, the fragment carriers are sequentially sequenced according to the frequency band of the fragment carrier from low frequency to high frequency or high frequency to low frequency. The RBG is numbered.

An enhanced base station (eNB) comprising the apparatus of any one of claims 9-14.