TWI352548B - Method and device for radio resource allocation in - Google Patents

Description

1352548 发明, INSTRUCTION DESCRIPTION: TECHNICAL FIELD OF THE INVENTION The present invention relates to wireless communication systems employing a variety of communication standards, and more particularly to methods and apparatus for radio frequency resource allocation in a multi-standard wireless communication system. [Prior Art] With the development of mobile communication systems, more and more standards for communication systems have emerged, such as the GSM standard (GSM: Global System for Mobile Communications) belonging to the second generation communication system (2G), IS-95. Standard and CDMA standards (CDMA: coded multi-directional proximity), a GPRS standard for transition between second-generation and third-generation communication systems (GPRS: packet data service), TSM standard (TSM: TD-SCDMA System for Moblie) , belongs to the TD-SCDMA standard of the third generation communication system (3G) (TD-SCDMA: time-sharing-synchronous code-multidirectional proximity), W-CDMA standard (W-CDMA: wideband coded multi-directional proximity) and cdma 2000 Standards, and currently very popular WLAN standards. In accordance with the provisions of the International Telecommunication Union, mobile communication systems using different communication standards should use carrier transmission data in different frequency bands. However, with the development of communication services, a variety of communication standards have emerged, namely, different communication systems, using different carriers in the same frequency band to transmit data. A typical example is an example in which the TSM standard proposed by the China Wireless Communication Standard Group (CWTS: China Wireless Communication Standard Group) uses the same frequency band as the TD-SCDMA standard.

The TD-SCDMA standard is a mobile communication system that uses synchronous coded multi-directional proximity technology for data transmission in time-sharing duplex mode, while TSM 89805-1000616.doc 1352548 standard design is used from existing GSM systems. A transitional standard for the evolution of TD-SCDMA systems, as a temporary standard for smooth transition to TD-SCDMA systems, TSM uses the same frequency band as TD-SCDMA for data transmission. Due to the limited resources of radio frequency, and the evolution of TSM and TDSCDMA systems, the number of users of TSm and TD-SCDMA is constantly changing, that is, at the beginning of evolution, mainly users of TSM, During the evolution process, TSM users are decreasing and td-SCDMA users are gradually increasing. 'Until evolution is nearing completion, there are very few TSM users. Most of them will be users of TD-SCDMA. At different stages of evolution, TSM and The number of users in the TD-SCDMA system is very different, so the required frequency resources are also different. Therefore, the limited frequency resources should be dynamically allocated between the coexisting wireless communication systems according to different needs, so as to realize the reasonable allocation of wireless resources. reuse. SUMMARY OF THE INVENTION One object of the present invention is to provide a method and apparatus for radio frequency resource allocation in a multi-standard wireless communication system, which can dynamically allocate limited frequency resources between coexisting wireless communication systems according to requirements. . Another object of the present invention is to provide a method and apparatus for radio frequency resource allocation in a specific multi-standard wireless communication system, which can implement a frequency resource shared by a coexisting wireless communication system during a long evolution process. δ ten configuration to improve spectrum utilization. Another object of the present invention is to provide a method and apparatus for radio frequency resource allocation in a specific multi-standard wireless communication system, which can be performed at 89805-1000616.doc

S 13.52548 Beginning and ending phases, the frequency shared by the coexisting wireless communication system is expected to be configured to improve spectrum utilization. In order to achieve the above object, a radio resource allocation method in a multi-standard wireless communication system according to the present invention includes the steps of: detecting a plurality of received signals from an uplink, wherein the plurality of signals are related to the requested Accessing information of different wireless communication systems _; according to the detected wireless communication body (4) (4) of the requested access, the radio resources shared by the different wireless communication systems are allocated. In order to achieve the above object, according to the present invention, a multi-standard wireless communication system, a prior-known radio frequency resource allocation device, includes: - a state detector, a signal, and an institutional type of the signals. Information; - Resource allocator, information source type information source for distribution. For the purpose of the above-mentioned purposes: for detecting that (four) multiple wireless communications from the uplink containing different wireless communications for the requested access are used for the different wireless according to the detected requested access Radio frequency resource shared by a communication system according to the present invention, a wireless communication system of the present invention, a packet receiver receiving or a plurality of transmission receivers, using a plurality of radio frequency processing units, signals to be transmitted; receiving and transmitting radio frequency signals for processing the transmissions Receiving the requested wireless communication of the different wireless communication system types included in the RF resource allocation device & The system type 89805-l〇〇〇6I6.d〇c 1352548 information distributes the radio frequency resources shared by different wireless communication systems. [Embodiment] The present invention provides a method and apparatus for dynamically allocating radio resources according to different needs of a coexisting wireless communication system in a base station of a coexisting wireless communication system.无线tSM, TD-SCDMA# stored wireless communication system as an example, the method and the money used in the different evolution stages of the two coexisting wireless communication systems have different characteristics. In the following, the method and device for statistically configuring the shared radio resources proposed by the present invention in the TSM and td_scdma coexistence systems, and in the initial and final stages of evolution, will be described in conjunction with the accompanying drawings. A method and apparatus for predictive configuration of shared wireless resources as proposed by the invention. As shown in FIG. 1, FIG. 1 is a schematic diagram of a cellular mobile communication system. A, B, C, D, E, and Z respectively represent six communication areas, and the six areas constitute a mobile communication system. The area z is the central area 'the area adjacent to the area AE system area Z. Each of the regions in Figure 1 includes a base station 1 (or node B) and one or more mobile terminals 20, as shown in Figure 2. The composition of a regional base station 1 (or node B) in Fig. 2 is not shown in Fig. 3. As shown in FIG. 3, each base station 1 includes: N antennas 30 for receiving and transmitting wireless signals, N sets of radio frequency units 4A, and a controller 5A. Wherein: each radio frequency unit 40 includes: a transceiver, a modulator and a demodulator. An input/output terminal of the transceiver is coupled to the corresponding antenna 3〇, 89805-1000616.doc 0 1352548 to receive the radiation from the antenna 30. or to transmit the wireless signal via Tianzhu Spring; Going out; the other end of the transceiver recognizes the input terminal AT signal of the demodulator with your mu output; the other-transmission of the transceiver transmits the modulated signal to the antenna 30. Feed. The parent RF unit 4 has its own camera controller 5' including the processor 6. , a distributor of two memories 7 〇 and - system state detector 9 〇. Wherein: the other input/output terminal of the coupling of the RF unit 4〇 is connected to the signal of each RF single 7C 40. At the same time, the processor 6 〇 分配器 分配器 分配器 记忆, memory 70 And the system state detector 9 (four) communication, specifically: the state detector 9G detects the type of the requested wireless communication system based on the signal from the processor 6: memory 7〇, in the storage multi-standard wireless communication system At the same time as the radio resource allocation information, if the system selected by the base station configures the radio resource method, it is also used to record the number of request accesses of each wireless communication system detected by the state detector 90 over a period of time; 80' according to the statistical configuration method, the number of times the different wireless communication system records the access requested by the memory, or according to the expected configuration method, the wireless communication system request type detected by the state detector 90 and the stored in the memory Radio frequency resource allocation information, dynamically allocating radio frequency resources shared by the TSM and the TD-SCDMA wireless communication system; then the processor 6' is further based on the resource allocator The allocation indication of 80 controls the adjustment of the carrier frequency of the corresponding radio unit 40. In the following, according to the different stages of TSM and TD-SCDMA evolution, the above statistical configuration method and expected configuration method are described in detail. 89805-1000616.doc 1352548 Statistical Configuration Method In general, the evolution from TSM to TD_SCDMA is a lengthy process, and it is likely that the process will continue for several years. In this case, the number of users of the two wireless communication systems does not change rapidly. Therefore, the configuration of the radio frequency resources can be performed at intervals, for example, every other month. The source distributor 80 re-allocates the RF carrier of each area according to the number of times the TSM&TD-SCDMA wireless communication system accumulated in the memory 7〇 is requested to be accessed during this period of time, wherein the memory is accumulated The recorded traffic load of the two wireless communication systems over the entire time period during this time. The cumulative number of times in the memory 70 will be cleared when the frequency allocation process of the next cycle is started to be re-recorded in the new time period, and the TSM and td_scdma communication systems detected by the state detector 90 are requested to be accessed. The number of times. Two examples of statistical configuration methods will be given below. In an example, the distributor 80 dynamically allocates radio frequency carrier resources according to the records requested by the wireless communication system described above. Example 1: S-distribution § 80 When a carrier configuration is required after a period of n* pg _, and the right time, the distributor 80 first accesses the memory 7 〇, and queries the state detector 90 recorded in the memory 7 〇. Check the number of times that the two wireless communication systems are requested to store # during all time periods of this period, and count #tsm to TD-SCDMA's Gong I: bu. 〃 After the assumption that the number of RF carriers in a region is the number of carriers that the adapter 80 will take is allocated m, the number of carriers in the TD-SCDMA is allocated as m, ni+n2=n, and the calculation is 89805-1000616.doc

S 10.1352548 N1/N2 value, the distributor 80 allocates several sets of values of N1 and N2 for TSM and TD-SCDMA respectively (in order to ensure that both wireless communication systems can be accessed, N1 and N2 should be not less than 1) And get several different values of N1/N2. Then, according to the calculated TSM to TD-SCDMA traffic ratio R, the allocator 80 picks the value of N1/N2 closest to R, and assigns N carriers to TSM. And TD-SCDMA two wireless communication systems. For example, the business record of the TSM is 3.4Er, the business record of TD-SCDMA is 8.5Erl, and N=8' then R=0.4. If 2 carriers are allocated to the TSM and 6 carriers are allocated to TD-SCDMA, Ν1/Ν2=0·3333 will be obtained. If 3 carriers are allocated to the TSM and 5 carriers are allocated to TD-SCDMA, Ν1/Ν2 = 0·6 will be obtained. As mentioned above, the distributor 80 should select the first method of distribution because it is closer to R. Example 2: In Example 1, the distributor 80 calculates the traffic ratio R of TSM and TD-SCDMA using the records on all time periods over a period of time. However, since the most important data is from peak time data, because it is most relevant to the blocking rate, in Example 2, Example 1 can be slightly modified, ie: only the peak time business data is used instead of the full time period. The business data is used to calculate the R, and the rest are the same. Expected Configuration Method At the beginning of the evolution, users of TD-SCDMA are far fewer than users of TSM. In this case, the carrier system of the TD-SCDMA radio is still inefficient in each area. Example 1 of the intended configuration method of the present invention solves this problem. 89805-1000616.doc 1352548 Example 1: According to this expected configuration method, all RF carriers in a region will be assigned to TSM, and only one carrier will be assigned to TD-SCDMA in the following cases: (1) In this region A TD-SCDMA user sends a connection request; (2) In the area, a TD-SCDMA user moves into the area from a neighboring area and issues a handover request in the area. The expected configuration method is shown in Figure 4. In an area, when no TS-SCDMA user is connected, all RF carriers are assigned to the TSM system (S1). When a TD-SCDMA user sends a connection request or issues a handover request in the area (S10), the base station in the area first determines whether there is an idle TD-SCDMA resource (S20), and if so, The resource is allocated to the request (S30); if not, it is judged whether there is an idle carrier (S40); if there is an idle carrier, the carrier is allocated to TS-SCDMA (S50), and then the radio resource is allocated to The request (S60); if there is no idle carrier, the request is rejected (S70), thereby interrupting the call request (S1001). Once all TD-SCDMA calls in the zone have ended (S1000), i.e., there are no TD-SCDMA subscriber connections in the zone, the RF carriers occupied by the TD-SCDMA system will be reassigned to the TSM. In the final stages of evolution, the opposite is true. Except for a very small number of TSM users, almost all users are users of TD-SCDMA. In this case, the TSM's RF carrier is still inefficient in each region. Example 2 of the intended configuration method of the present invention solves the problem of the problem 89805-1000616.doc -12- 1352548. Example 2: According to the expected configuration method, all RF carriers in an area will be allocated to TD-SCDMA, and only one carrier is allocated to the TSM in the following cases: (1) In this area, a TSM user sends out A connection request; (2) In the area, a TSM user moves into the area from a neighboring area and issues a handover request in the area. The expected configuration method is shown in Figure 5. In an area, when no TSM user connects, all RF carriers are assigned to the (si) of the td_scdma system. When a TSM user sends a connection request or issues a handover request in the area (S100), it first determines whether there is an idle tsm resource (S200) 'If yes, allocates the resource to the request (S3〇〇) If not, further determining whether there is an idle carrier (S4〇〇), if there is an idle carrier, assigning the carrier to the TSM (S500), and then allocating the radio resource to the request (S600); If there is no idle carrier, the request is rejected (S700), thereby interrupting the beer call request (§ι〇〇1). Once all TSM calls in the zone have ended (sl〇〇〇), ie, there are no connections for TSM users in the zone, then the RF carriers occupied by the TSM will be reassigned to TD-SCDMA. In actual operation, most of the available RF carriers are generally allocated by statistical configuration methods, and the expected configuration method is usually applied to a small number of reserved carriers to adapt to the rapid changes in the number of users in different wireless communication systems. 89805-1000616.doc -13- 1352548 A method and apparatus for allocating radio frequency resources in a multi-standard wireless communication system according to the present invention, since the resource allocator in the device can be based on different wireless communication systems detected by the state detector The method and apparatus are capable of dynamically allocating limited frequency resources between coexisting wireless communication systems by requesting timely allocation of radio frequency resources shared by the coexisting wireless communication systems. The method and device for allocating radio frequency resources in a specific multi-standard wireless communication system according to the present invention, the method and the device can adopt statistical configuration and expected configuration or statistics according to different stages of system evolution and different demand ratios of system services. The method is combined with the expected configuration. Therefore, the method and the device can realize the reasonable configuration of the frequency resources shared by the coexisting wireless communication system, and improve the utilization of the limited frequency resources. Of course, for those skilled in the art, the radio frequency resource allocation method in the multi-standard wireless communication k system provided by the present invention should not be limited to the system adopting the TSM and TD-SCDMA standards, and can be applied to other systems. The standard wireless communication system coexists. It will be understood by those skilled in the art that various modifications can be made to the method of allocating radio frequency resources in the multi-standard wireless communication system disclosed above in the present invention without departing from the scope of the present invention. Accordingly, the scope of the invention should be determined by the scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS The present invention will be further described in conjunction with the accompanying drawings in which: FIG. 1 is a structural diagram of a cellular communication system; FIG. 2 is a structure of each region in the cellular communication system shown in FIG. Fig. 3 is a block diagram of a base station/node in each area shown in Fig. 2; Fig. 4 is a flow chart of the first configuration method 1; Fig. 5 is an expected configuration The flow chart of method two. [Description of Symbols] 10 Base Station 20 Mobile Terminal 30 Antenna 40 RF Unit 50 Controller 60 Processor 70 Memory 80 Distributor 90 System Status Detector 89805-1000616.doc -15-

Claims (1)

Picking up, applying for patent scope: 1.: A method for allocating radio frequency resources in a multi-standard wireless communication system, including: a plurality of received credits transmitted from an uplink switch device (4) on the requested access (four) wireless Information on the type of system; and (B) the selection of the radio frequency resources from the different wireless communication systems based on the selection of the following: & (a) Access to each of the different wireless communication systems = read-based statistical configuration method of the radio resources, which counts the nose (1) for the entire time period or (9) the time period of the entire time period - the transmission ratio & seven k α A turn June is counted in memory or detected by the state detector for immediate detection: and (b) a type of wireless communication system. 2. The method of claim 1 The transmission ratio is calculated by the ratio of the number of requests for each of the different wireless communication systems according to the juice calculation. 3. The method of claim 1, wherein the step (8) further comprises: (4) Judgment Whether there is an idle radio resource that can be used to access the request of the different wireless communication system; and (B3): if there is an idle radio resource available for the request, the radio resource of the space is allocated to the request. For example, in the method of applying the patent scope item, the step (8) further includes 89805-10006l6.doc (B1) to allocate radio frequency resources to a specific communication system in advance; (B2) the right 4 different wireless communication systems are not the specific communication system. Determining whether there is a spatial radio frequency resource, which can be used to access a request of a different wireless communication system; and (B3) a radio resource having a right-preserving space is available for the request, and the idle radio resource is allocated to the request. The method of claim 3, wherein the step (10) and the step (B3) are performed in the following cases: The user sends a connection request to access the different wireless communication system. Such as Shen. The method of claim 3, wherein the step (B2) and the step (B3) are performed in the following cases: The 70-unit handover client issues a handover request to access the different wireless communication system. The method of claim 3, wherein the step (B3) further comprises: (0 if there is no idle radio resource available for accessing the request of the different wireless communication system), then determining whether there is an idle radio frequency carrier available for And (11) a radio frequency carrier having a space on the right is available for the request, then allocating the radio frequency carrier to the wireless communication system, and then allocating the related radio frequency resource to the request. The method of applying for the patent scope 帛7's step (ii) further includes: after the communication by the wireless communication system is finished, releasing 89805-10006l6.doc 1352548 to the radio frequency carrier used for the request. The method of claim 7, wherein the step (step) comprises: rejecting the request if there is no idle RF carrier available for the request. 10. The method of claim 1 In the middle, the wireless communication system includes at least two of the following: IS_95 standard, CDMA standard, gsm standard, TSM standard, GPRS standard, TD_SCDMA standard, W-CDMA a radio frequency resource allocation device in a multi-standard wireless communication system, comprising: a state detector for detecting a plurality of received signals transmitted from an uplink device And wherein the signals include information about different types of wireless communication systems requested to access; and allocating radio frequency resources shared by the non-resource distributors with the wireless communication system according to a selection selected from the group consisting of: a) an RF-based coherent method based on the number of requests for access to each of the different wireless communication systems, which is used to calculate (1) the entire time period or (ii) one of the time periods of the entire time period The number of acquisitions such as DH and so on is recorded in advance in the memory or is detected by the state detector; and 12. If the patent application scope is 丨! The transmission traffic ratio is achieved according to the ratio of the radio resource allocation and the number of requests for each of the different wireless communication systems. 00616.doc 13. The device of claim 11, wherein the operation of the radio resource allocation performed by the resource allocator comprises: (2): determining whether there is an idle radio resource, which can be used to access the different wireless a request for a communication system; and (3). If there is an idle radio resource available for the request, the radio resource of the space is allocated to the request. For example, the device of claim 11 is claimed, wherein the resource allocator performs The operation of radio frequency resource allocation includes: (1) pre-allocating radio frequency resources to a specific communication system; (2) right: the different radio communication system is not the specific communication system, and then determining whether there is idle radio resources a request for accessing the different wireless communication system; and (3) if the spatially located radio frequency resource is available for the request, the idle radio resource is allocated to the request. The apparatus of claim 13 wherein said (2) and (3) are executed in the following cases: The client issues a connection request to access the different wireless communication system. 16. If the device of claim 13 is applied, the (7) and (7) described in the above are executed in the following cases: & the user to issue a handover request to access the different wireless communication system. 17. The apparatus of claim 13 wherein the operation of the radio resource allocation using the resource = line comprises: ^ the presence of a spare radio resource available for the request, then the judgment 89805-1000616.doc 6 is idle The RF carrier can be used to access the request of the different wireless communication system; and if an idle RF carrier is available for the request, the idle RF carrier is allocated to the different wireless communication system, and then the associated RF resource is Assigned to the request. 18. The apparatus of claim 17, wherein the operation of allocating radio resource allocation by using the resource comprises: releasing the radio frequency carrier allocated to the request after the communication by the wireless communication system is completed . 19. The apparatus of claim 17, wherein the operation of utilizing the radio resource allocation performed by the resource distributor comprises rejecting the request if an idle radio frequency carrier is not available for the request. 20. The device of claim 11, wherein the wireless communication system comprises at least two of the following: an IS-95 standard, a CDMA standard, a Gsm standard, a TSM standard, a GPRS standard, a TD-SCDMA standard, and a W-CDMA standard. , cdma2000 standard and WLAN standard. 21. A wireless communication system, comprising: a plurality of transmit receivers for receiving and transmitting radio frequency signals; a plurality of radio frequency processing units for processing received signals or signals to be transmitted by a transmit receiver; a resource allocation device for detecting information about a type of different wireless communication system requested to be accessed in a received signal transmitted from the uplink; and selecting a wireless communication according to a selection selected from the following System 89805-1000616.doc 1352548 Shared radio frequency resources are allocated: (a) - a statistical configuration method for accessing the radio frequency resources based on the number of requests for access to each of the different wireless communication systems, Calculating (1) the transmission flow ratio of one of the entire time period or (Π) part of the time period of the entire time period, wherein the number of requests is pre-recorded in the memory or detected by the state detector; and a type of wireless communication system. 22. The wireless communication system of claim 2, wherein the transmission traffic ratio is achieved in accordance with the ratio of the radio resource allocation and the number of requests for calculating access to each of the different wireless communication systems. . The radio communication system of claim 21, wherein the radio resource allocation operation performed by the radio resource allocation device comprises: (2) determining whether there is an idle radio resource, which is used to access the different wireless communication system. Request; and (3): If there is an idle radio resource available for the request, the idle radio resource is allocated to the request. 24. The wireless communication system of claim 1, wherein the radio resource allocation operation performed by the radio resource allocation device comprises: (υ: pre-allocating radio frequency resources to a specific communication system; (2): if If the different wireless communication system is not the specific communication system, it is determined that the radio frequency of the (4) is: #源, which can be used to access the request of the different wireless communication system; and (3): if there are idle radio resources available for the request, The idle radio resource is allocated to the request. 89805-1000616.doc 25. The wireless communication system of claim 23, wherein the (7) and (3) are executed under the following conditions: The connection of the different wireless communication system is long. 26. For example, the patent scope f 23 wireless communication system, wherein the (7) and (3) are executed under the following conditions: _ 'The parent of the unit sends the access to the user A handover request of a different wireless communication system. 27. A wireless communication system, in which the radio frequency resource allocation device performs the radio frequency resource operation The operation further includes: if there is no idle radio resource available for the request, determining whether there is an idle radio carrier available for accessing the request of the different wireless communication system; and if there is an idle radio frequency carrier available for the request, Allocating the idle radio frequency carrier to the different radio communication system, and then allocating the radio resource corresponding to the request to the request. 28. The wireless communication system of claim 27, wherein the radio frequency resource allocation device is used to perform The radio resource allocation operation further includes: releasing the radio frequency carrier allocated to the request after the communication by the wireless communication system ends. 29. The wireless communication system of claim 27, wherein the radio frequency resource is utilized. The radio resource allocation operation performed by the allocating device further includes: if there is no idle radio frequency carrier available for the request, rejecting the request. 89805-10006l6.doc 1352548 3 0. The wireless communication system of claim 21, Wherein, the different wireless communication systems include the following Two kinds: IS-95 standard, CDMA standard, GSM standard, TSM standard, GPRS standard, TD-SCDMA standard, W-CDMA standard, cdma2000 standard, and WLAN standard 89805-1000616.doc S.